7Baggers

Rambus Inc
(NASDAQ:RMBS) 

RMBS stock logo

Rambus Inc. provides semiconductor products in the United States, Taiwan, South Korea, Japan, Europe, Canada, Singapore, Asia, and internationally. The company offers DDR memory interface chips to module manufacturers and OEMs; physical interface and companion digital controller IPs for SoC designer...

Founded: 1990
Full Time Employees: 685
Sector: Technology
Industry: Semiconductors

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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 2002-03-31 2001-12-31 
                                                                                                     
      revenue:
                                                                                                     
      product revenue
    88,002,000 96,778,000 93,342,000 81,325,000 76,309,000 73,369,000 66,394,000 56,692,000 50,360,000 53,698,000 52,181,000 54,978,000 63,775,000 67,178,000 58,619,000 53,302,000 47,969,000 45,274,000 36,710,000 31,170,000 30,781,000 21,774,000 29,769,000 31,725,000 30,728,000 26,600,000 21,377,000 16,031,000 8,964,000 11,537,000 11,753,000 8,087,000 7,313,000 8,543,000 8,661,000 8,401,000                                                              
      royalties
    69,642,000 71,676,000 65,120,000 68,607,000 73,975,000 58,211,000 64,105,000 56,380,000 47,476,000 52,412,000 28,857,000 40,672,000 28,169,000 31,436,000 29,878,000 48,038,000 30,464,000 32,893,000 33,044,000 41,910,000 28,859,000 27,732,000 16,602,000 16,957,000 19,694,000 19,434,000 19,448,000 27,050,000 24,853,000 45,430,000 33,599,000 30,049,000 21,374,000 77,861,000 72,787,000 69,990,000 68,956,000 70,604,000 68,298,000 62,835,000 62,877,000 66,242,000 66,823,000 62,387,000 66,963,000 64,134,000 64,009,000 69,741,000 73,637,000 69,867,000 71,013,000 57,009,000 66,222,000 57,258,000 57,361,000 55,723,000 62,043,000 96,216,000 60,970,000 59,235,000 90,242,000 31,179,000 38,192,000 160,542,000 30,175,000 26,898,000 24,759,000 26,169,000 35,736,000 25,793,000 32,288,000 33,093,000 36,043,000 35,327,000 39,190,000 43,746,000 44,013,000 41,523,000 41,699,000 41,681,000 34,685,000 28,031,000 34,595,000 33,011,000 32,571,000 30,483,000 29,616,000 27,462,000 27,766,000 24,555,000 25,452,000 24,812,000 24,325,000 -65,771,907.8 22,183,000 21,809,000 21,780,000 
      contract and other revenue
    22,545,000 21,790,000 20,051,000 22,277,000 16,380,000 29,522,000 15,014,000 19,066,000 20,035,000 16,115,000 24,260,000 24,182,000 21,818,000 23,753,000 23,747,000 19,792,000 20,617,000 13,614,000 11,528,000 11,779,000 10,742,000 12,407,000 10,544,000 11,248,000 13,567,000 13,913,000 16,574,000 15,216,000 14,567,000 11,596,000 14,402,000 18,322,000 17,739,000 15,487,000 17,686,000 16,329,000 28,395,000 26,955,000 21,557,000 13,666,000 9,805,000 10,531,000 6,956,000 10,425,000 5,951,000 7,906,000 5,703,000 6,777,000 4,651,000 3,555,000 2,281,000                                               
      total revenue
    180,189,000 190,244,000 178,513,000 172,209,000 166,664,000 161,102,000 145,513,000 132,138,000 117,871,000 122,225,000 105,298,000 119,832,000 113,762,000 122,367,000 112,244,000 121,132,000 99,050,000 91,781,000 81,282,000 84,859,000 70,382,000 61,913,000 56,915,000 59,930,000 63,989,000 59,947,000 57,399,000 58,297,000 48,384,000 68,563,000 59,754,000 56,458,000 46,426,000 101,891,000 99,134,000 94,720,000 97,351,000 97,559,000 89,855,000 76,501,000 72,682,000 76,773,000 73,779,000 72,812,000 72,914,000 72,040,000 69,712,000 76,518,000 78,288,000 73,422,000 73,294,000 57,919,000 66,866,000 57,443,000 57,530,000 56,215,000 62,863,000 100,263,000 66,214,000 62,527,000 90,921,000 31,743,000 38,862,000 161,864,000 30,816,000 27,874,000 26,983,000 27,334,000 37,613,000 29,428,000 35,715,000                           
      yoy
    8.12% 18.09% 22.68% 30.33% 41.40% 31.81% 38.19% 10.27% 3.61% -0.12% -6.19% -1.07% 14.85% 33.32% 38.09% 42.75% 40.73% 48.24% 42.81% 41.60% 9.99% 3.28% -0.84% 2.80% 32.25% -12.57% -3.94% 3.26% 4.22% -32.71% -39.72% -40.39% -52.31% 4.44% 10.33% 23.82% 33.94% 27.07% 21.79% 5.07% -0.32% 6.57% 5.83% -4.84% -6.86% -1.88% -4.89% 32.11% 17.08% 27.82% 27.40% 3.03% 6.37% -42.71% -13.12% -10.09% -30.86% 215.86% 70.38% -61.37% 195.04% 13.88% 44.02% 492.17% -18.07% -5.28% -24.45%                               
      qoq
    -5.29% 6.57% 3.66% 3.33% 3.45% 10.71% 10.12% 12.10% -3.56% 16.08% -12.13% 5.34% -7.03% 9.02% -7.34% 22.29% 7.92% 12.92% -4.22% 20.57% 13.68% 8.78% -5.03% -6.34% 6.74% 4.44% -1.54% 20.49% -29.43% 14.74% 5.84% 21.61% -54.44% 2.78% 4.66% -2.70% -0.21% 8.57% 17.46% 5.25% -5.33% 4.06% 1.33% -0.14% 1.21% 3.34% -8.89% -2.26% 6.63% 0.17% 26.55% -13.38% 16.40% -0.15% 2.34% -10.58% -37.30% 51.42% 5.90% -31.23% 186.43% -18.32% -75.99% 425.26% 10.55% 3.30% -1.28% -27.33% 27.81% -17.60%                            
      cost of revenue:
                                                                                                     
      cost of product revenue
    33,729,000 37,343,000 34,337,000 32,418,000 30,583,000 28,494,000 24,554,000 22,779,000 20,048,000 19,941,000 19,388,000 18,743,000 26,423,000 28,209,000 21,953,000 20,417,000 18,397,000 13,408,000 13,157,000 11,422,000 11,410,000 7,468,000 9,661,000                                                                           
      cost of contract and other revenue
    1,128,000 1,148,000 531,000 631,000 546,000 721,000 752,000 1,000,000 555,000 1,123,000 1,295,000 1,294,000 1,691,000 1,615,000 1,455,000 974,000 624,000 727,000 1,456,000 1,017,000 1,556,000 1,647,000 1,267,000 1,535,000 1,198,000 5,265,000 5,466,000 6,717,000 6,771,000 6,239,000 5,952,000 11,089,000 12,122,000 12,090,000 14,456,000 14,337,000                                                              
      amortization of acquired intangible assets
    1,675,000 1,720,000 1,724,000 1,721,000 1,713,000 2,300,000 2,796,000 3,052,000 3,056,000 3,052,000 3,349,000 3,561,000 3,562,000 3,560,000 3,576,000 3,421,000 3,378,000 3,603,000 3,813,000 4,439,000 4,386,000 4,336,000 4,336,000 4,336,000 4,344,000                                                                         
      total cost of revenue
    36,532,000 40,211,000 36,592,000 34,770,000 32,842,000 31,515,000 28,102,000 26,831,000 23,659,000 24,116,000 24,032,000 23,598,000 31,676,000 33,384,000 26,984,000 24,812,000 22,399,000 17,738,000 18,426,000 16,878,000 17,352,000 13,451,000 15,264,000 16,148,000 15,885,000                                                                         
      gross profit
    143,657,000 150,033,000 141,921,000 137,439,000 133,822,000 129,587,000 117,411,000 105,307,000 94,212,000 98,109,000 81,266,000 96,234,000 82,086,000 88,983,000 85,260,000 96,320,000 76,651,000 74,043,000 62,856,000 67,981,000 53,030,000 48,462,000 41,651,000 43,782,000 48,104,000                                                                         
      yoy
    7.35% 15.78% 20.88% 30.51% 42.04% 32.08% 44.48% 9.43% 14.77% 10.26% -4.68% -0.09% 7.09% 20.18% 35.64% 41.69% 44.54% 52.79% 50.91% 55.27% 10.24%                                                                             
      qoq
    -4.25% 5.72% 3.26% 2.70% 3.27% 10.37% 11.49% 11.78% -3.97% 20.73% -15.55% 17.24% -7.75% 4.37% -11.48% 25.66% 3.52% 17.80% -7.54% 28.19% 9.43% 16.35% -4.87% -8.98%                                                                          
      gross margin %
    79.73% 78.86% 79.50% 79.81% 80.29% 80.44% 80.69% 79.69% 79.93% 80.27% 77.18% 80.31% 72.16% 72.72% 75.96% 79.52% 77.39% 80.67% 77.33% 80.11% 75.35% 78.27% 73.18% 73.06% 75.18% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 
      operating expenses:
                                                                                                     
      research and development
    50,229,000 49,246,000 49,511,000 46,331,000 42,620,000 43,698,000 41,299,000 40,525,000 37,359,000 35,985,000 37,368,000 41,576,000 41,898,000 40,121,000 39,295,000 39,538,000 39,815,000 36,263,000 35,592,000 31,469,000 32,354,000 34,752,000 33,733,000                                      2,423 2,470 2,703    2,214  2,491 3,326 3,767 3,904 6,378 3,190 3,248 3,383 3,460 4,269 3,003  11,849,000 10,598,000 9,934,000 8,591,000 8,430,000 8,841,000 7,929,000 7,427,000 7,412,000 7,565,000 8,136,000 7,267,000 6,518,000 -16,189,976.9 5,844,000 5,226,000 5,120,000 
      sales, general and administrative
    31,670,000 29,961,000 29,155,000 28,115,000 28,058,000 27,998,000 25,867,000 24,402,000 25,827,000 25,665,000 25,333,000 26,187,000 30,964,000 27,309,000 26,198,000 26,305,000 26,906,000 23,101,000 22,210,000 22,184,000 23,562,000 21,232,000 20,182,000                                                                           
      total operating expenses
    81,899,000 79,207,000 78,666,000 74,446,000 70,678,000 71,726,000 62,716,000 64,985,000 64,081,000 62,978,000 -23,605,000 84,539,000 80,144,000 72,845,000 68,337,000 60,760,000 68,330,000 65,073,000 58,161,000 53,882,000 56,513,000 59,466,000 54,151,000 56,246,000 58,943,000                                                                         
      operating income
    61,758,000 70,826,000 63,255,000 62,993,000 63,144,000 57,861,000 54,695,000 40,322,000 30,131,000 35,131,000 104,871,000 11,695,000 1,942,000 16,138,000 16,923,000 35,560,000 8,321,000 8,970,000 4,695,000 14,099,000 -3,483,000 -11,004,000 -12,500,000 -12,464,000 -10,839,000 -13,211,000 -22,873,000 -37,046,000 -31,409,000 -4,200,000 -19,167,000 -19,987,000 -43,613,000 15,719,000 17,010,000 8,244,000 13,434,000 524,000 11,816,000 12,008,000 9,294,000 20,334,000 17,640,000 15,554,000 17,892,000 17,585,000 14,468,000 20,104,000 23,189,000 6,214,000 9,065,000 5,744,000 1,441,000 -4,027,000 -47,100,000   10,736,000  8,370,000 42,883,000 -11,494,000 -6,673,000 202,166,000 -16,696,000 -20,661,000 -22,302,000 -16,203,000 -18,012,000 -30,556,000 -16,915,000 -23,230,000 -32,018,000 -16,461,000 -10,167,000 -11,469,000 -654,000 -25,781,000 -10,695,000 -464,000 7,311,000 3,928,000 5,604,000 4,919,000 9,589,000 10,648,000 10,608,000 8,672,000 11,095,000 6,387,000 5,337,000 4,471,000 6,837,000 -23,923,967.5 7,649,000 8,713,000 7,562,000 
      yoy
    -2.19% 22.41% 15.65% 56.22% 109.56% 64.70% -47.85% 244.78% 1451.54% 117.69% 519.70% -67.11% -76.66% 79.91% 260.45% 152.22% -338.90% -181.52% -137.56% -213.12% -67.87% -16.71% -45.35% -66.36% -65.49% 214.55% 19.34% 85.35% -27.98% -126.72% -212.68% -342.44% -424.65% 2899.81% 43.96% -31.35% 44.54% -97.42% -33.02% -22.80% -48.05% 15.63% 21.92% -22.63% -22.84% 182.99% 59.60% 250.00% 1509.23% -254.31% -119.25%   -137.51%    -193.41%  -95.86% -356.85% -44.37% -70.08% -1347.71% -7.31% -32.38% 31.85% -30.25% -43.74% 85.63% 66.37% 102.55% 4795.72% -36.15% -4.94% 2371.77% -108.95% -756.34% -290.85% -109.43% -23.76% -63.11% -47.17% -43.28% -13.57% 66.71% 98.76% 93.96% 62.28% -126.70% -30.23% -48.69% -9.59%     
      qoq
    -12.80% 11.97% 0.42% -0.24% 9.13% 5.79% 35.65% 33.82% -14.23% -66.50% 796.72% 502.21% -87.97% -4.64% -52.41% 327.35% -7.24% 91.05% -66.70% -504.79% -68.35% -11.97% 0.29% 14.99% -17.95% -42.24% -38.26% 17.95% 647.83% -78.09% -4.10% -54.17% -377.45% -7.59% 106.33% -38.63% 2463.74% -95.57% -1.60% 29.20% -54.29% 15.27% 13.41% -13.07% 1.75% 21.54% -28.03% -13.30% 273.17% -31.45% 57.82% 298.61% -135.78% -91.45%      -80.48% -473.09% 72.25% -103.30% -1310.86% -19.19% -7.36% 37.64% -10.04% -41.05% 80.64% -27.18% -27.45% 94.51% 61.91% -11.35% 1653.67% -97.46% 141.06% 2204.96% -106.35% 86.13% -29.91% 13.93% -48.70% -9.95% 0.38% 22.32% -21.84% 73.71% 19.67% 19.37% -34.61% -128.58% -412.77% -12.21% 15.22%  
      operating margin %
    34.27% 37.23% 35.43% 36.58% 37.89% 35.92% 37.59% 30.52% 25.56% 28.74% 99.59% 9.76% 1.71% 13.19% 15.08% 29.36% 8.40% 9.77% 5.78% 16.61% -4.95% -17.77% -21.96% -20.80% -16.94% -22.04% -39.85% -63.55% -64.92% -6.13% -32.08% -35.40% -93.94% 15.43% 17.16% 8.70% 13.80% 0.54% 13.15% 15.70% 12.79% 26.49% 23.91% 21.36% 24.54% 24.41% 20.75% 26.27% 29.62% 8.46% 12.37% 9.92% 2.16% -7.01% -81.87% 0% 0% 10.71% 0% 13.39% 47.17% -36.21% -17.17% 124.90% -54.18% -74.12% -82.65% -59.28% -47.89% -103.83% -47.36% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% 
      interest income and other income
    7,151,000 6,700,000 6,327,000 5,228,000 4,856,000 4,796,000 4,667,000 4,400,000 4,587,000 4,215,000 2,715,000 2,236,000 2,161,000 835,000 2,838,000 2,738,000 1,360,000 1,623,000 2,726,000 2,381,000 2,981,000 3,081,000 3,464,000 4,597,000 6,374,000 6,263,000 6,727,000 6,972,000 7,413,000 7,248,000 8,008,000 8,249,000 9,116,000 893,000 208,000 129,000 154,000 218,000 142,000 1,138,000 242,000 350,000 539,000 203,000 132,000 156,000 -549,000 104,000 13,000 -223,000 66,000 -1,419,000 -20,000 -116,000 -12,000 89,000 98,000   -652,000 -192,000 312,000 316,000 425,000    1,440,000                              
      interest expense
    -279,000 -320,000 -294,000 -382,000 -377,000 -352,000 -327,000 -371,000 -366,000 -377,000 -356,000 -376,000 -381,000 -484,000 -437,000 -348,000 -605,000 -2,737,000 -2,672,000 -2,683,000 -2,614,000 -2,619,000 -2,586,000 -2,580,000 -2,555,000 -2,550,000 -2,497,000 -2,534,000 -2,271,000 -3,251,000 -3,976,000 -4,634,000 -4,421,000 -3,966,000 -3,287,000 -3,261,000 -3,206,000 -3,248,000 -3,193,000 -3,163,000 -3,141,000 -3,122,000 -3,117,000 -3,091,000 -3,083,000 -3,065,000 -3,059,000 -8,770,000 -9,926,000 -9,595,000 -8,552,000 -7,426,000 -7,312,000 -7,090,000 -7,121,000      -4,990,000 -4,953,000 -3,740,000 -6,016,000 -7,822,000 -7,641,000 -2,817,000 -2,670,000                              
      interest and other income
    6,872,000 6,380,000 6,033,000 4,846,000 4,479,000 4,444,000 4,340,000 4,029,000 4,221,000 27,762,000 2,359,000 1,860,000 1,540,000 351,000 -13,483,000 2,390,000 -74,025,000 -1,114,000 54,000 -302,000 367,000 462,000 878,000 2,017,000 3,819,000 3,713,000 4,230,000 4,438,000 5,142,000 3,997,000 4,032,000 3,615,000 4,695,000 -4,155,000 -3,079,000 -3,132,000 -3,052,000 -3,030,000 -3,051,000 -2,025,000 -2,899,000 -2,772,000 -2,578,000 -2,888,000 -2,951,000 -2,909,000 -3,608,000 -8,666,000 -9,913,000 -9,818,000 -8,486,000 -8,845,000 -7,332,000 -7,206,000 -7,133,000     -5,824,000    -5,591,000 -20,369,000 891,000 1,173,000 -1,230,000 6,835,000 2,704,000 2,908,000 4,595,000 5,263,000 5,645,000 5,657,000 5,194,000 2,344,000 4,472,000 4,076,000 3,445,000 8,085,000 21,202,000 3,414,000 2,129,000 916,000 1,149,000 2,199,000 4,104,000 1,576,000 976,000 1,321,000 2,984,000 1,294,000 -5,028,993.1 1,423,000 1,669,000 1,937,000 
      income before income taxes
    68,630,000 77,206,000 69,288,000 67,839,000 67,623,000 62,305,000 59,035,000 44,351,000 34,352,000 62,893,000 107,230,000 13,555,000 3,482,000 16,489,000 3,440,000 37,950,000 -65,704,000 7,856,000 4,749,000 13,797,000 -3,116,000 -10,542,000 -11,622,000 -10,447,000 -7,020,000 -9,498,000 -18,643,000 -32,608,000 -26,267,000 -203,000 -15,135,000 -16,372,000 -38,918,000 11,564,000 13,931,000 5,112,000 10,382,000 -2,506,000 8,765,000 9,983,000 6,395,000 17,562,000 15,062,000 12,666,000 14,941,000 14,676,000 10,860,000 11,438,000 13,276,000 -3,604,000 579,000 -3,101,000 -5,891,000 -11,233,000 -54,233,000   4,558,000  2,546,000 37,701,000 -16,135,000 -10,097,000 196,575,000 -23,937,000 -27,411,000 -23,946,000 -17,433,000 -11,177,000 -27,852,000 -14,007,000 -18,635,000 -26,755,000 -10,816,000 -4,510,000 -6,275,000 1,690,000 -21,309,000 -6,619,000 2,981,000 15,396,000 25,130,000 9,018,000 7,048,000 10,505,000 11,797,000 12,807,000 12,776,000 12,671,000 7,363,000 6,658,000 7,455,000 8,131,000 -28,952,960.6 9,072,000 10,382,000 9,499,000 
      provision for income taxes
    8,772,000 13,366,000 20,911,000 9,904,000 7,320,000 103,000 10,370,000 8,295,000 1,454,000 4,348,000 4,032,000 -155,325,000 201,000 540,000 2,501,000 2,930,000 514,000 1,751,000 1,073,000 2,631,000 -503,000 1,524,000 1,157,000 334,000 963,000 34,000 -1,312,000 4,372,000 309,000 1,815,000 89,758,000 -1,015,000 -3,229,000 47,732,000 6,236,000 2,507,000 7,376,000 939,000 4,254,000 6,107,000 4,517,000 4,570,000 -166,971,000 5,805,000 5,439,000 6,835,000 5,347,000 6,395,000 5,472,000 6,173,000 6,304,000 4,743,000 4,511,000 4,899,000 3,865,000 3,837,000 3,850,000 4,080,000 2,088,000 6,776,000 4,617,000 4,441,000 2,393,000 45,676,000 25,750 85,000 25,000  -496,000 92,000 130,657,000          6,015,000 10,634,000 3,658,000 2,608,000 3,962,000 1,410,000 4,483,000 4,471,000 4,054,000 2,356,000      3,634,000 3,325,000 
      net income
    59,858,000 63,840,000 48,377,000 57,935,000 60,303,000 62,202,000 48,665,000 36,056,000 32,898,000 58,545,000 103,198,000 168,880,000 3,281,000 15,949,000 939,000 35,020,000 -66,218,000 6,105,000 3,676,000 11,166,000 -2,613,000 -12,066,000 -12,779,000 -10,781,000 -7,983,000 -9,532,000 -17,331,000 -36,980,000 -26,576,000 -2,018,000 -104,893,000 -15,357,000 -35,689,000 -36,168,000 7,695,000 2,605,000 3,006,000 -3,445,000 4,511,000 3,876,000 1,878,000 12,992,000 182,033,000 6,861,000 9,502,000 7,841,000 5,513,000 5,043,000 7,804,000 -9,777,000 -5,725,000 -7,844,000 -10,402,000 -16,132,000 -58,098,000 -32,216,000 -27,890,000 478,000 -10,585,000 -4,230,000 33,084,000 -20,576,000 -12,490,000 150,899,000 -23,293,000 -27,496,000 -23,971,000 -17,426,000 -10,681,000 -27,944,000 -144,664,000 -12,634,000 -14,558,000 -6,498,000 -2,720,000 -3,888,000 2,069,000 -22,646,000 6,109,000 1,817,000 9,381,000 14,496,000 5,360,000 4,440,000 6,543,000 10,387,000 8,324,000 8,305,000 8,617,000 5,007,000 4,528,000 5,069,000 5,529,000 -18,818,974.4 5,897,000 6,748,000 6,174,000 
      yoy
    -0.74% 2.63% -0.59% 60.68% 83.30% 6.25% -52.84% -78.65% 902.68% 267.08% 10890.20% 382.24% -104.95% 161.24% -74.46% 213.63% 2434.18% -150.60% -128.77% -203.57% -67.27% 26.58% -26.27% -70.85% -69.96% 372.35% -83.48% 140.80% -25.53% -94.42% -1463.13% -689.52% -1287.26% 949.87% 70.58% -32.79% 60.06% -126.52% -97.52% -43.51% -80.24% 65.69% 3201.89% 36.05% 21.76% -180.20% -196.30% -164.29% -175.02% -39.39% -90.15% -75.65% -62.70% -3474.90% 448.87% 661.61% -184.30% -102.32% -15.25% -102.80% -242.03% -25.17% -47.90% -965.94% 118.08% -1.60% -83.43% 37.93% -26.63% 330.04% 5218.53% 224.95% -803.62% -71.31% -144.52% -313.98% -77.94% -256.22% 13.97% -59.08% 43.37% 39.56% -35.61% -46.54% -24.07% 107.45% 83.83% 63.84% 55.85% -126.61% -23.22% -24.88% -10.45%     
      qoq
    -6.24% 31.96% -16.50% -3.93% -3.05% 27.82% 34.97% 9.60% -43.81% -43.27% -38.89% 5047.21% -79.43% 1598.51% -97.32% -152.89% -1184.65% 66.08% -67.08% -527.32% -78.34% -5.58% 18.53% 35.05% -16.25% -45.00% -53.13% 39.15% 1216.95% -98.08% 583.03% -56.97% -1.32% -570.02% 195.39% -13.34% -187.26% -176.37% 16.38% 106.39% -85.54% -92.86% 2553.16% -27.79% 21.18% 42.23% 9.32% -35.38% -179.82% 70.78% -27.01% -24.59% -35.52% -72.23% 80.34% 15.51% -5934.73% -104.52% 150.24% -112.79% -260.79% 64.74% -108.28% -747.83% -15.29% 14.71% 37.56% 63.15% -61.78% -80.68% 1045.04% -13.22% 124.04% 138.90% -30.04% -287.92% -109.14% -470.70% 236.21% -80.63% -35.29% 170.45% 20.72% -32.14% -37.01% 24.78% 0.23% -3.62% 72.10% 10.58% -10.67% -8.32% -129.38% -419.13% -12.61% 9.30%  
      net income margin %
    33.22% 33.56% 27.10% 33.64% 36.18% 38.61% 33.44% 27.29% 27.91% 47.90% 98.01% 140.93% 2.88% 13.03% 0.84% 28.91% -66.85% 6.65% 4.52% 13.16% -3.71% -19.49% -22.45% -17.99% -12.48% -15.90% -30.19% -63.43% -54.93% -2.94% -175.54% -27.20% -76.87% -35.50% 7.76% 2.75% 3.09% -3.53% 5.02% 5.07% 2.58% 16.92% 246.73% 9.42% 13.03% 10.88% 7.91% 6.59% 9.97% -13.32% -7.81% -13.54% -15.56% -28.08% -100.99% -57.31% -44.37% 0.48% -15.99% -6.77% 36.39% -64.82% -32.14% 93.23% -75.59% -98.64% -88.84% -63.75% -28.40% -94.96% -405.05% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% 
      net income per share
                                                                                              0.05 0.05 0.06 0.048 0.06 0.07 0.06 
      basic
    0.55 0.59 0.45 0.54 0.56 0.58 0.45 0.33 0.3 0.55 0.95 1.55 0.03 0.14 0.01 0.32 -0.6 0.06 0.03 0.1 -0.02 -0.11 -0.11 -0.09 -0.07 -0.08 -0.16 -0.33 -0.24 -0.02 -0.97 -0.14 -0.33 -0.33 0.07 0.02 0.03 -0.03 0.04 0.04 0.02 0.13 1.56 0.06 0.08 0.07 0.05 0.04 0.07 -0.09 -0.05 -0.07 -0.09 -0.14 -0.52 -0.29 -0.25  -0.1 -0.04 0.3 -0.18 -0.11 1.33 -0.22 -0.26 -0.23 -0.17 -0.1 -0.27 -1.38 -0.12 -0.14 -0.06 -0.03 -0.04 0.02 -0.22 0.06 0.02 0.1 0.15 0.05 0.04 0.06 0.1 0.08 0.08 0.09 0.05        
      diluted
    0.55 0.58 0.44 0.53 0.56 0.57 0.45 0.33 0.3 0.53 0.93 1.51 0.03 0.14 0.01 0.31 -0.6 0.05 0.03 0.1 -0.02 -0.11 -0.11 -0.09 -0.07 -0.08 -0.16 -0.33 -0.24 -0.02 -0.97 -0.14 -0.33 -0.33 0.07 0.02 0.03 -0.03 0.04 0.03 0.02 0.13 1.52 0.06 0.08 0.06 0.05 0.04 0.07 -0.09 -0.05 -0.07 -0.09 -0.14 -0.52 -0.29 -0.25  -0.1 -0.04 0.29 -0.18 -0.11 1.28 -0.22 -0.26 -0.23 -0.17 -0.1 -0.27 -1.38 -0.12 -0.14 -0.06 -0.03 -0.04 0.02 -0.22 0.06 0.02 0.09 0.14 0.05 0.04 0.06 0.1 0.08 0.07 0.08 0.05        
      weighted-average shares used for eps calculation
                                                                                                     
      basic
    108,030 107,548 107,622 107,586 107,236 107,438 107,235 107,721 108,090 108,183 108,317 109,039 108,277 109,472 109,968 110,447 109,889 110,538 108,989 112,144 112,211 113,254 113,828 113,572 112,907 110,948 111,315 110,875 109,692 108,450 107,897 107,737 109,358 110,198 109,555 110,060 111,464 110,162 110,214 109,904 109,733 114,814 116,444 116,027 115,336 114,318 114,523 114,116 113,590 112,415 112,640 112,183 111,599 110,769 110,826 110,553 110,358 112,334 109,992 107,613 112,456 111,866 113,321 113,132 105,011 105,182 104,675 104,376 104,574 104,897 104,804 104,683 104,056 103,820 103,820 103,820 103,048 103,792 103,414                   
      diluted
    109,716 109,235 109,304 108,520 108,628 109,041 108,474 109,047 110,037 110,889 110,775 111,601 111,153 109,472 111,962 112,715 109,889 114,865 113,661 114,931 112,211 113,254 113,828 113,572 112,907 110,948 111,315 110,875 109,692 108,450 107,897 107,737 109,358 110,198 113,119 112,565 115,325 113,140 113,723 112,061 112,252 117,484 119,542 120,939 117,442 117,624 118,206 117,398 116,629 112,415 112,640 112,183 111,599 110,769 110,826 110,553 110,358 115,552 109,992 107,613 115,884 111,866 113,321 117,463 105,011 105,182 104,675 104,376 104,574 104,897 104,804 104,683 104,056 103,820 103,820 103,820 103,048 103,792 110,495                   
      impairment of assets
           1,071,000   10,045,000                                                                                       
      change in fair value of earn-out liability
          -4,544,000 -1,200,000 700,000 1,100,000 -5,666,000 6,900,000 6,900,000 5,000,000 2,411,000 -5,500,000 1,200,000        -1,800,000                                                                         
      operating expenses
                                                                                                     
      restructuring and other charges
             -26,000 -100,000 9,494,000              4,588,000 1,374,000                                                                       
      gain on divestiture
             59,000 -90,843,000                                                                                       
      loss on fair value adjustment of derivatives
                -240,000  -2,302,000  -8,283,000                                                                                 
      gain on fair value of equity security
                 886,750 3,547,000                                                                                   
      loss on extinguishment of debt
                  -17,129,000  -66,497,000                                                                                 
      restructuring charges
                     92,000   368,000 209,000   836,000   2,528,000 331,000 -6,000  -1,022,000 3,245,000                39,000 2,211,000 1,129,000  2,206,000 679,000 6,622,000                                           
      impairment (recovery) of assets held for sale
                             3,784,250 -1,853,000                                                                       
      cost of product revenue*
                           10,277,000 10,343,000 9,311,000 7,108,000 6,310,000 4,427,000 4,367,000 5,376,000 4,199,000 4,357,000 5,901,000 5,152,000 7,480,000                                                              
      research and development*
                           34,688,000 36,664,000 36,820,000 41,486,000 37,890,000 40,619,000 37,395,000 43,131,000 37,696,000 40,117,000 39,417,000 36,196,000 37,522,000 36,000,000 38,744,000 33,820,000 28,753,000 28,527,000 25,604,000 27,784,000 29,188,000 28,534,000 28,445,000 27,014,000 27,668,000 26,898,000 26,803,000 27,553,000 30,777,000 32,848,000 33,088,000 30,674,000 38,347,000 38,394,000 32,318,000 24,220,000 23,317,000 25,028,000 23,002,000 22,985,000 21,691,000 16,975,000 16,727,000 15,713,000 17,837,000 17,174,000 17,511,000 20,035,000 21,502,000 22,538,000 18,312,000 18,597,000 23,430,000                      
      sales, general and administrative*
                           21,310,000 22,895,000 24,872,000 26,691,000 24,908,000 27,645,000 24,768,000 24,462,000 24,483,000 30,198,000 28,818,000 26,799,000 27,137,000 28,186,000 25,466,000 24,795,000 21,789,000 23,095,000 16,853,000 17,860,000 17,339,000 18,502,000                                                     
      impairment of assets held for sale
                               16,990,000                                                                      
      operating costs and expenses:
                                                                                                     
      total operating costs and expenses
                             73,158,000 80,272,000 95,343,000 79,793,000 72,763,000 78,921,000 76,445,000 90,039,000 86,172,000 82,124,000 86,476,000 83,917,000 97,035,000 78,039,000 64,493,000 63,388,000 56,439,000 56,139,000 57,258,000 55,022,000 54,455,000 55,244,000 56,414,000 55,099,000 67,208,000 64,229,000 52,175,000 65,425,000 61,470,000 104,630,000 77,964,000 80,421,000 89,527,000 68,722,000 54,157,000 48,038,000 43,237,000 45,535,000                                   
      gain from sale of intellectual property
                                     -54,000 -479,000       -424,000 -106,000 -896,000 -2,260,000 -3,359,000   -170,000   -103,000                                              
      gain from settlement
                                           -138,000 -441,000 -510,000 -510,000 -510,000 -510,000 -510,000 -510,000 -510,000 -510,000 -356,000 -179,000         -6,200,000 -10,300,000 -10,300,000 -10,300,000 -95,900,000                                  
      cost of revenue*
                                        19,731,000 21,370,000 19,424,000 14,089,000 12,207,000 11,340,000 11,111,000 12,137,000 10,756,000 10,748,000 10,540,000 10,637,000 10,022,000 10,358,000 8,958,000 7,365,000 5,249,000 6,340,000 7,529,000 7,340,000 7,163,000 7,425,000 6,058,000 3,149,000 1,911,000 1,368,000 1,804,000 1,854,000                                  
      marketing, general and administrative*
                                                 13,909,750 18,200,000 18,619,000 18,820,000 18,511,000 18,698,000 14,134,000 25,105,000 21,311,000 24,255,000 32,194,000 34,834,000 48,952,000 37,732,000 32,732,000 30,602,000 27,938,000 29,408,000 31,527,000 28,598,000 29,882,000 32,563,000 37,156,000 35,700,000 31,288,000 23,768,000 33,321,000 40,940,000 29,914,000 24,778,000 24,965,000                      
      impairment of goodwill and long-lived assets
                                                     9,681,000 8,070,000    35,471,000                                           
      costs of restatement and related legal activities
                                                       2,000 17,000 52,000 79,000 83,000 30,000 832,000 712,000 1,159,000         -302,000 392,000 2,260,000 912,000 826,000 4,169,000 7,453,000 7,009,000 5,746,000 23,796,000 1,894,000                   
      contract revenue
                                                       910,000 644,000 185,000 169,000 492,000 820,000 4,047,000 5,244,000 3,292,000 679,000 564,000 670,000 1,322,000 641,000 976,000 2,224,000 1,165,000 1,877,000 3,635,000 3,427,000                           
      interest expense on convertible notes
                                                               -5,172,000                                      
      costs (recoveries) of restatement and related legal activities
                                                                797,000 1,229,000 1,638,000 526,000                                  
      interest and other expense
                                                                -3,414,000 -4,641,000 -3,424,000                                   
      * includes stock-based compensation:
                                                                                                     
      cost of revenue
                                                                27 17 29                                   
      marketing, general and administrative
                                                                4,870 4,976 5,199    5,403  5,593 4,371 3,821 4,707 8,189 4,138 5,431 4,943 4,421 4,366 3,822  17,687,000 17,033,000 19,482,000 20,498,000 15,078,000 14,727,000 11,471,000 11,208,000 8,716,000 10,361,000 12,374,000 13,131,000 10,754,000 -26,184,963.5 8,411,000 7,750,000 10,024,000 
      costs and expenses:
                                                                                                     
      total costs and expenses
                                                                   -40,302,000 47,512,000 48,535,000 49,285,000 43,537,000 55,625,000 59,984,000 52,630,000 62,968,000 72,550,000 58,176,000 57,710,000 61,619,000 53,244,000 71,726,000 60,139,000  34,278,000 32,086,000 34,381,000 34,692,000 29,020,000 28,111,000 24,357,000 23,869,000 21,274,000 22,173,000 23,858,000 23,608,000 18,867,000 -48,160,932.5 16,041,000 14,818,000 17,302,000 
      cost of contract revenue*
                                                                    1,397,000 1,858,000 1,438,000 2,183,000 2,892,000 4,611,000 6,567,000                           
      restructuring costs*
                                                                        161,000 4,024,000                            
      impairment of intangible asset
                                                                         2,158,000                            
      costs (recovery) of restatement and related legal activities
                                                                    -3,500,000 68,000 -429,000 -13,639,000                              
      cost of contract revenue
                                                                      233  583 1,321 1,365                           
      benefit from income taxes
                                                                       -7,000    -6,001,000 -2,123,750 -4,318,000 -1,790,000 -2,387,000 -379,000 1,337,000 -12,728,000 1,164,000           2,130,000 2,386,000 2,602,000 -10,133,986.2 3,175,000   
      restructuring costs
                                                                         547                            
      revenue
                                                                                                     
      contract revenues
                                                                           6,645,000 4,489,000 6,388,000 8,353,000 6,404,000 8,577,000 4,422,000 7,745,000 5,564,000 6,904,000 7,983,000 5,390,000 6,600,000 6,038,000 8,276,000 5,349,000 5,079,000 4,603,000 4,005,000 3,743,000 3,267,000 1,379,000 -6,312,992.2 1,507,000 1,722,000 3,084,000 
      total revenues
                                                                           39,738,000 40,532,000 41,715,000 47,543,000 50,150,000 52,590,000 45,945,000 49,444,000 47,245,000 41,589,000 36,014,000 39,985,000 39,611,000 38,609,000 38,759,000 34,965,000 32,541,000 32,369,000 28,560,000 29,195,000 28,079,000 25,704,000 -72,084,900 23,690,000 23,531,000 24,864,000 
      cost of contract revenues*
                                                                           7,233,000 8,246,000 5,781,000 6,882,000 6,215,000                      
      cost of contract revenues
                                                                           1,918 1,841 1,333 1,645 1,091 1,805 1,844 2,524  4,742,000 4,455,000 4,965,000 5,603,000 5,512,000 4,543,000 4,957,000 5,234,000 5,146,000 4,247,000 3,348,000 3,210,000 1,595,000 -5,785,992.1 1,786,000 1,842,000 2,158,000 
      *includes stock-based compensation:
                                                                                                     
      revenues:
                                                                                                     
      cost of contract revenues *
                                                                                7,382,000 6,121,000 9,521,000                   
      research and development *
                                                                                17,424,000 17,695,000 15,841,000                   
      marketing, general and administrative *
                                                                                22,692,000 24,114,000 32,883,000                   
      cost of contract revenues: includes non-cash stock-based compensation of 1,351 in quarter ended march 31, 2006
                                                                                   6,765,000                  
      research and development: includes non-cash stock based compensation of 2,700 in quarter ended march 31, 2006
                                                                                   16,752,000                  
      marketing, general and administrative: includes non-cash stock based compensation of 4,324 and 1,140 in quarters ended march 31, 2006 and 2005, respectively
                                                                                   24,192,000                  
      total costs and expenses: includes non-cash stock based compensation of 8,375 and 1,140 in quarters ended march 31, 2006 and 2005, respectively
                                                                                   47,709,000                  
      number of shares used in per share calculations:
                                                                                                     
      basic
                                                                                   101,142 -63 99,944 99,596 100,280 150 101,875 102,500 100,966 292 97,498 97,414 97,169 97,436 24,986.75 99,511 99,948 100,336 
      diluted
                                                                                   109,332 -63 103,211 103,675 105,913 -391 107,573 109,850 111,198 1,500 106,001 105,498 103,785 100,209 25,747.25 101,761 102,945 104,016 
      net income per share
                                                                                              0.05 0.05 0.06 0.048 0.06 0.07 0.06 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 2002-03-31 2001-12-31 
                                                                                                       
        assets
                                                                                                       
        current assets:
                                                                                                       
        cash and cash equivalents
      134,324,000 182,826,000 79,200,000 87,759,000 132,185,000 99,775,000 113,980,000 124,578,000 112,614,000 94,767,000 131,957,000 122,190,000 99,876,000 125,334,000 141,559,000 171,460,000 179,129,000 107,891,000 151,871,000 204,731,000 109,554,000 136,146,000 89,475,000 103,275,000 175,446,000 102,176,000 91,838,000 114,186,000 143,016,000 115,924,000 134,534,000 248,284,000 122,361,000 225,844,000 182,345,000 167,207,000 177,455,000 135,294,000 89,479,000 188,011,000 136,629,000 143,764,000 216,553,000 201,477,000 171,567,000 154,126,000 125,686,000 99,571,000 346,576,000 338,696,000 307,961,000 155,276,000 157,215,000 148,984,000 152,206,000 152,584,000 188,548,000 160,844,000 179,804,000 182,234,000 215,262,000 218,197,000 334,536,000 400,921,000 289,073,000 367,291,000 317,986,000 125,838,000 116,241,000 106,786,000 131,792,000 124,861,000 119,391,000 269,258,000 87,061,000 56,776,000 73,304,000 134,771,000 121,020,000 98,223,000 42,391,000 56,144,000 69,929,000 208,021,000 48,310,000 28,443,000 42,967,000 63,084,000 42,005,000 11,872,000 59,357,000 21,475,000 28,656,000 21,454,000 30,982,000 34,344,000 29,465,000 
        marketable securities
      651,815,000 579,005,000 594,103,000 507,066,000 382,204,000 382,023,000 318,717,000 308,306,000 278,443,000 331,077,000 243,588,000 210,437,000 192,261,000 187,892,000 123,289,000 180,175,000 164,562,000 377,718,000 267,857,000 272,382,000 419,574,000 366,503,000 430,746,000 382,802,000 259,999,000 305,488,000 246,186,000 223,532,000 162,850,000 161,840,000 113,637,000 50,056,000 168,859,000 103,532,000 1,287,000 746,000 10,170,000 36,888,000 61,310,000 71,320,000 88,943,000 143,942,000 146,325,000 146,649,000 146,194,000 145,983,000 145,440,000 146,859,000 56,848,000 48,966,000 58,396,000 50,364,000 57,613,000 54,346,000 54,880,000 50,658,000 43,970,000 131,909,000 179,550,000 326,341,000 296,747,000 266,696,000 263,073,000 267,752,000 171,120,000 131,192,000 162,400,000 222,090,000 229,612,000 272,186,000 262,386,000 257,165,000 321,491,000 175,733,000 350,979,000 382,271,000 351,055,000 241,450,000 224,416,000 173,164,000 118,416,000 88,973,000 101,470,000 96,802,000 89,483,000 88,507,000 43,042,000 47,430,000 24,777,000 42,476,000 37,907,000 43,421,000 36,081,000 65,083,000 65,708,000 64,464,000 80,523,000 
        accounts receivable
      109,297,000 137,476,000 105,377,000 107,077,000 119,142,000 122,813,000 87,198,000 83,210,000 86,940,000 82,925,000 65,101,000 63,929,000 59,408,000 55,368,000 38,547,000 63,602,000 51,232,000 44,065,000 46,674,000 38,730,000 35,937,000 27,903,000 33,025,000 35,198,000 44,364,000 44,039,000 38,610,000 28,225,000 43,810,000 50,863,000 42,674,000 39,263,000 26,734,000 25,892,000 49,799,000 36,788,000 27,353,000 21,099,000 26,363,000 11,326,000 14,617,000 16,408,000 10,314,000 6,745,000 6,541,000 6,001,000 5,099,000 12,503,000 7,816,000 2,251,000 1,597,000 1,003,000 60,000 529,000 452,000 113,000 728,000 917,000 1,354,000 389,000 2,600,000 155,000 244,000 470,000 949,000 754,000 1,550,000 1,187,000 1,503,000 1,740,000 2,050,000 5,636,000 442,000 2,167,000 2,309,000 976,000 846,000 765,000 1,976,000 1,808,000 954,000 1,329,000 1,667,000 3,596,000 1,435,000 1,742,000 454,000 790,000 10,263,000 2,987,000 3,935,000 4,399,000 1,080,000 312,000 197,000 1,937,000 275,000 
        unbilled receivables
      24,869,000 25,209,000 25,882,000 26,061,000 23,624,000 25,070,000 30,778,000 29,493,000 38,484,000 50,872,000 64,252,000 94,553,000 100,435,000 125,698,000 142,037,000 146,692,000 131,748,000 135,608,000 138,281,000 144,546,000 137,729,000 135,897,000 141,341,000 155,448,000 172,042,000 184,366,000 182,934,000 177,897,000 170,287,000 176,613,000 164,487,000 179,606,000 161,442,000                                     690,000 134,000 1,760,000 1,478,000 1,014,000 1,096,000 163,000 1,748,000 675,000 682,000                   
        inventories
      58,424,000 44,098,000 44,606,000 38,603,000 44,701,000 44,634,000 48,905,000 52,596,000 47,599,000 36,154,000 34,615,000 33,527,000 26,180,000 20,900,000 14,161,000 9,238,000 6,164,000 8,482,000 8,085,000 8,052,000 9,926,000 14,466,000 14,218,000 11,554,000 9,848,000 10,086,000 9,854,000 9,326,000 8,192,000 6,772,000 6,272,000 6,041,000 5,596,000 5,159,000 5,015,000 5,328,000 5,840,000 5,633,000                                                            
        prepaids and other current assets
      21,151,000 20,202,000 19,563,000 17,191,000 17,600,000 15,942,000 12,435,000 11,975,000 12,376,000 34,850,000 11,112,000 11,829,000 14,603,000 12,022,000 14,584,000 9,979,000 12,277,000 10,600,000 11,991,000 10,544,000 11,616,000 15,907,000 16,229,000 17,970,000 17,057,000 18,524,000 9,824,000 9,350,000 16,857,000 15,738,000 14,434,000 14,456,000 16,770,000 11,317,000 10,998,000 12,255,000 12,676,000 17,867,000 22,150,000 12,993,000 13,017,000 11,476,000 10,859,000 9,690,000 10,141,000 8,541,000 7,959,000 7,283,000 8,766,000 8,253,000 6,038,000 8,694,000 9,038,000 10,529,000 9,759,000 7,309,000 7,010,000   10,988,000 10,898,000 12,120,000 10,417,000 8,662,000 8,700,000 7,276,000 8,534,000 7,765,000 8,486,000 8,141,000 8,746,000 13,936,000 8,349,000 5,757,000 6,626,000 6,650,000 4,403,000 5,846,000 5,764,000 6,023,000 4,235,000 5,168,000 5,481,000 4,009,000 4,094,000 4,487,000 6,861,000 4,850,000 5,652,000 4,869,000 5,575,000 2,266,000 2,648,000 3,011,000 4,290,000 3,074,000 3,322,000 
        total current assets
      999,880,000 988,816,000 868,731,000 783,757,000 719,456,000 690,257,000 612,013,000 610,158,000 576,456,000 630,645,000 550,625,000 536,465,000 492,763,000 527,214,000 474,177,000 581,146,000 545,112,000 684,364,000 624,759,000 678,985,000 724,336,000 696,822,000 725,034,000 706,247,000 678,756,000 664,679,000 656,449,000 640,904,000 545,012,000 527,750,000 476,038,000 537,706,000 501,762,000 371,744,000 249,444,000 222,324,000 233,494,000 216,781,000 199,302,000 283,650,000 253,206,000 315,590,000 401,947,000 365,674,000 335,566,000 314,838,000 285,563,000 267,285,000 421,015,000 398,371,000 374,280,000 216,125,000 224,714,000 215,176,000 219,104,000 213,462,000 243,054,000 305,634,000 373,576,000 522,372,000 527,927,000 498,309,000 608,924,000 678,392,000 469,971,000 507,405,000 491,389,000 357,089,000 355,930,000 389,765,000 405,341,000 433,298,000 462,746,000 465,632,000 459,611,000 458,224,000 442,744,000 394,716,000 357,692,000 283,004,000 169,782,000 165,317,000 192,250,000 326,138,000 157,183,000 135,489,000 105,694,000 128,885,000 95,587,000 73,358,000 118,779,000 81,797,000 76,289,000 95,933,000 109,027,000 113,957,000 122,555,000 
        intangible assets
      8,495,000 10,171,000 11,891,000 13,615,000 15,347,000 17,059,000 19,389,000 22,279,000 25,518,000 28,769,000 32,015,000 42,992,000 46,936,000 50,880,000 54,856,000 58,866,000 57,634,000 58,420,000 62,431,000 27,203,000 31,872,000 36,487,000 41,052,000 45,624,000 50,208,000 54,900,000 35,362,000 29,748,000 55,507,000 59,936,000 65,411,000 70,940,000 82,083,000 91,722,000 102,545,000 111,875,000 121,355,000 132,388,000 164,862,000 100,900,000 114,325,000 64,266,000 70,426,000 76,694,000 83,049,000 89,371,000 95,694,000 102,435,000 109,260,000 117,172,000 132,448,000 139,395,000 145,930,000 153,173,000 160,408,000 186,150,000 194,895,000 189,363,000 194,205,000 39,007,000 40,986,000 27,104,000 25,153,000 22,105,000 21,660,000 6,585,000 7,268,000 7,988,000 7,244,000 8,040,000 11,028,000 12,381,000 13,441,000 14,764,000 16,057,000 17,377,000 18,697,000                     
        goodwill
      286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 286,812,000 292,040,000 292,040,000 292,040,000 292,038,000 291,995,000 279,793,000 278,810,000 279,091,000 183,222,000 183,222,000 183,222,000 183,222,000 183,222,000 183,465,000 183,465,000 164,488,000 153,144,000 207,828,000 207,178,000 208,116,000 208,680,000 211,356,000 209,661,000 209,318,000 207,959,000 206,085,000 204,794,000 207,531,000 162,715,000 163,805,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 116,899,000 124,969,000 124,969,000 124,969,000 124,969,000 138,669,000 138,669,000 115,148,000 115,148,000 18,154,000 18,154,000 15,554,000 15,554,000 15,554,000 15,554,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 4,454,000 3,315,000 3,315,000 3,315,000 3,315,000 3,315,000                 
        property and equipment
      113,278,000 113,051,000 100,424,000 106,155,000 81,988,000 75,509,000                                                        49,705,000 39,016,000 37,972,000 38,966,000 15,941,000 18,378,000 19,734,000 22,290,000 23,672,000 26,111,000 28,497,000 24,587,000 24,140,000 25,755,000 25,192,000 26,019,000 19,993,000 21,411,000 20,885,000 18,898,000 20,542,000 21,756,000 18,130,000 17,578,000 17,892,000 13,121,000 10,610,000 10,965,000 11,210,000 11,746,000 12,078,000 12,375,000 13,277,000 13,456,000 14,050,000 15,191,000 
        operating lease right-of-use assets
      15,989,000 17,112,000 18,215,000 19,302,000 20,369,000 21,454,000 21,039,000 21,760,000 21,574,000 21,497,000 20,964,000 21,598,000 22,696,000 24,143,000 25,232,000 26,343,000 22,714,000 23,712,000 25,202,000 25,801,000 27,214,000 28,708,000 29,961,000 31,407,000 34,493,000 37,020,000 15,503,000 16,081,000 19,458,000                                                                     
        deferred tax assets
      101,484,000 105,542,000 112,643,000 131,224,000 134,230,000 136,466,000 129,348,000 130,163,000 131,885,000 127,892,000 131,020,000 140,405,000 2,623,000 3,031,000 2,803,000 2,686,000 3,986,000 4,047,000 3,846,000 3,907,000 4,372,000 4,353,000 5,249,000 5,350,000 4,541,000 4,574,000 6,454,000 4,399,000 4,411,000 4,435,000 3,930,000 82,111,000 81,999,000 159,099,000 206,503,000 204,267,000 206,075,000 168,342,000 165,661,000 159,097,000 160,464,000  17,896,000                                                       
        other assets
      7,208,000 4,759,000 4,710,000 5,649,000 5,265,000 5,632,000 5,325,000 1,461,000 1,408,000 1,613,000 1,463,000 3,151,000 3,631,000 3,809,000 3,473,000 2,931,000 3,304,000 4,240,000 4,359,000 4,306,000 4,061,000 4,535,000 4,671,000 4,895,000 5,579,000 5,931,000 6,381,000 6,763,000 7,419,000 7,825,000 5,879,000 4,832,000 4,507,000 4,543,000 2,283,000 2,564,000 2,733,000 2,749,000 3,749,000 4,365,000 4,622,000 3,648,000 3,690,000 3,345,000 2,333,000 2,612,000 2,542,000 3,090,000 3,071,000 3,498,000 3,801,000 1,718,000 3,029,000 3,131,000 5,514,000 7,791,000 7,609,000 5,640,000 6,038,000 6,086,000 5,361,000 6,115,000 6,512,000 6,579,000 7,045,000 7,653,000 5,745,000 3,749,000 4,483,000 4,791,000 5,350,000 5,746,000 3,624,000 3,084,000 3,279,000 3,306,000 1,380,000 4,334,000 4,310,000 4,166,000 3,953,000 8,210,000 10,744,000 8,418,000 1,269,000 1,171,000 1,179,000 1,729,000 3,461,000 2,967,000 3,010,000 5,527,000 6,001,000 6,054,000 6,154,000 8,566,000 8,747,000 
        total assets
      1,533,146,000 1,529,545,000 1,406,372,000 1,467,811,000 1,379,365,000 1,343,136,000 1,251,570,000 1,250,623,000 1,208,836,000 1,258,227,000 1,184,331,000 1,127,116,000 962,630,000 1,012,594,000 969,056,000 1,110,913,000 1,060,875,000 1,232,646,000 1,202,666,000 1,152,985,000 1,235,780,000 1,243,876,000 1,309,018,000 1,316,647,000 1,319,491,000 1,338,986,000 1,299,827,000 1,312,161,000 1,321,420,000 1,361,155,000 1,343,970,000 1,525,773,000 1,539,659,000 891,072,000 824,128,000 803,294,000 826,210,000 783,496,000 800,296,000 765,783,000 752,825,000 719,504,000 795,873,000 623,755,000 599,871,000 588,279,000 567,157,000 557,691,000 720,998,000 713,379,000 705,006,000 562,844,000 581,666,000 587,812,000 601,825,000 640,674,000 673,686,000 695,469,000 763,177,000 659,159,000 663,172,000 598,629,000 697,381,000 762,867,000 555,869,000 543,755,000 528,823,000 395,292,000 396,890,000 434,573,000 457,273,000 608,435,000 627,347,000 624,953,000 621,310,000 621,300,000 604,617,000 591,891,000 592,276,000 535,638,000 485,519,000 524,930,000 622,401,000 608,473,000 376,724,000 353,361,000 343,764,000 349,486,000 293,086,000 250,778,000 260,743,000 250,190,000 250,523,000 232,959,000 232,851,000 236,819,000 235,292,000 
        liabilities & stockholders’ equity
                                                                                                       
        current liabilities:
                                                                                                       
        accounts payable
      35,290,000 35,915,000 12,776,000 11,157,000 16,356,000 18,522,000 20,365,000 26,970,000 24,775,000 18,074,000 15,682,000 17,643,000 18,117,000 24,815,000 20,405,000 20,183,000 15,540,000 11,279,000 13,281,000 8,975,000 7,802,000 8,993,000 13,323,000 14,016,000 15,730,000 9,549,000 9,429,000 7,794,000 8,274,000 7,392,000 8,572,000 8,386,000 7,080,000 9,614,000 7,016,000 9,099,000 8,437,000 9,793,000 10,188,000 6,269,000 4,874,000 4,096,000 5,928,000 5,187,000 5,697,000 6,962,000 5,697,000 5,465,000 5,555,000 7,001,000 5,967,000 5,300,000 4,036,000 7,918,000 7,841,000 8,604,000 6,615,000 18,117,000 11,896,000 11,292,000 5,952,000 11,844,000 9,433,000 8,417,000 8,972,000 11,162,000 10,932,000 15,054,000 6,374,000 9,091,000 8,933,000 12,014,000 11,283,000 14,258,000 13,814,000 12,773,000 10,429,000 7,940,000 8,279,000 6,558,000 4,374,000 4,110,000 12,398,000 8,837,000 6,880,000 3,634,000 3,212,000 2,773,000 2,776,000 2,268,000 3,714,000 3,185,000 2,115,000 3,953,000    
        accrued salaries and benefits
      16,853,000 22,044,000 16,372,000 18,438,000 14,157,000 19,193,000 13,966,000 15,880,000 12,687,000 17,504,000 13,076,000 22,251,000 15,906,000 20,502,000 16,654,000 20,689,000 17,402,000 20,945,000 15,331,000 15,878,000 14,113,000 23,326,000 15,719,000 16,170,000 12,411,000 20,291,000 13,294,000 13,966,000 13,666,000 16,938,000 14,353,000 17,385,000 14,982,000 17,091,000 12,278,000 14,076,000 10,576,000 14,177,000 10,209,000 10,040,000 8,432,000 12,278,000 9,362,000 11,857,000 10,477,000 14,840,000 11,840,000 14,410,000 27,257,000 33,448,000 30,336,000 29,582,000 31,925,000 23,992,000 29,785,000 23,107,000 26,830,000 27,488,000 15,175,000 9,907,000 31,634,000 25,401,000 18,926,000 14,136,000 6,435,000 8,458,000 7,358,000 9,340,000 9,859,000 9,478,000 6,070,000 10,467,000 9,985,000 9,564,000 8,809,000 14,940,000 12,788,000 8,609,000 9,707,000 6,641,000 4,934,000 3,950,000 2,942,000 4,225,000 3,907,000 5,038,000 4,037,000 4,120,000 4,369,000 3,777,000 3,242,000 3,386,000 2,936,000 3,254,000    
        deferred revenue
      23,719,000 29,980,000 23,809,000 18,845,000 20,336,000 19,903,000 18,404,000 15,385,000 16,399,000 17,393,000 17,459,000 16,779,000 20,846,000 23,861,000 23,460,000 22,165,000 20,624,000 24,755,000 20,324,000 12,299,000 13,534,000 10,198,000 14,950,000 10,841,000 10,121,000 11,947,000 9,516,000 6,448,000 15,774,000 19,374,000 12,727,000 13,583,000 16,798,000 18,272,000 21,224,000 21,327,000 15,658,000 16,932,000 17,772,000 10,347,000 7,317,000 5,780,000 5,129,000 6,551,000 5,405,000 4,133,000            762,000 9,574,000       395,000 396,000 1,745,000 1,787,000 2,329,000 2,467,000 3,799,000 2,756,000 5,510,000 4,988,000 6,596,000 6,003,000 2,069,000 1,754,000 1,369,000 973,000 4,963,000 8,035,000 13,447,000 19,271,000 24,485,000 23,320,000 24,510,000 24,180,000 22,593,000 22,692,000 21,820,000 22,218,000 11,086,000 11,146,000 12,150,000 11,319,000 
        eda tools software licenses liability
      15,036,000 14,884,000 11,883,000 12,608,000 8,086,000                                                                                             
        operating lease liabilities
      6,362,000 6,310,000 6,135,000 5,975,000 5,727,000 5,617,000 5,397,000 5,033,000 4,722,000 4,453,000 4,174,000 4,098,000 4,287,000 5,024,000 5,435,000 5,873,000 5,854,000 5,992,000 6,501,000 6,722,000 7,026,000 4,724,000 4,576,000 4,463,000 5,194,000 6,357,000 7,382,000 8,381,000 9,351,000                                                                     
        other current liabilities
      4,567,000 11,441,000 3,855,000 5,205,000 6,200,000 17,313,000 14,881,000 20,761,000 20,125,000 26,598,000 25,167,000 27,731,000 21,349,000 23,992,000 20,085,000 22,440,000 14,107,000 20,002,000 19,295,000 17,798,000 17,741,000 18,559,000 22,306,000 17,924,000 16,715,000 18,893,000 15,854,000 16,668,000 5,847,000 9,191,000 5,942,000 13,402,000 11,263,000 9,414,000 10,731,000 6,615,000 9,453,000 10,399,000 10,853,000 5,850,000 7,392,000 6,212,000 7,191,000 7,774,000 6,450,000 8,723,000 8,739,000 10,310,000                                                  
        total current liabilities
      101,827,000 120,574,000 74,830,000 72,228,000 70,862,000 81,812,000 74,127,000 85,034,000 82,607,000 89,121,000 84,196,000 101,444,000 96,174,000 126,709,000 116,431,000 161,444,000 168,402,000 267,267,000 95,175,000 81,426,000 80,402,000 85,864,000 90,882,000 83,458,000 80,063,000 86,179,000 88,293,000 84,424,000 69,276,000 69,285,000 59,378,000 152,198,000 145,852,000 132,842,000 182,739,000 51,117,000 44,124,000 51,301,000 59,801,000 43,982,000 40,115,000 28,366,000 27,610,000 31,369,000 28,029,000 34,658,000 26,276,000 30,185,000 209,641,000 212,842,000 204,347,000 197,985,000 54,171,000 54,134,000 61,109,000 51,336,000 59,426,000 66,329,000 51,246,000 37,721,000 55,811,000 74,628,000 64,181,000 63,707,000 186,192,000 165,529,000 161,393,000 164,471,000 36,101,000 40,001,000 37,428,000 59,142,000 56,152,000 62,680,000 220,954,000 227,926,000 218,438,000 46,815,000 37,664,000 26,479,000 20,607,000 24,378,000 32,846,000 35,118,000 36,715,000 40,278,000 36,571,000 36,195,000 34,984,000 32,679,000 33,952,000 35,330,000 32,604,000 21,566,000 18,919,000 20,671,000 18,430,000 
        long-term operating lease liabilities
      17,042,000 18,671,000 20,301,000 21,961,000 23,467,000 24,534,000 24,794,000 25,780,000 25,899,000 26,255,000 26,117,000 27,160,000 28,127,000 29,079,000 30,093,000 31,219,000 27,939,000 29,099,000 30,400,000 31,104,000 32,535,000 34,305,000 35,973,000 37,626,000 38,074,000 39,889,000 9,415,000 9,548,000 12,308,000                                                                     
        long-term eda tools software licenses liability
      16,014,000 20,908,000 17,522,000 21,106,000                                                                                              
        other long-term liabilities
      5,023,000 3,574,000 3,892,000 4,312,000 10,075,000 6,715,000 12,314,000 14,240,000 18,964,000 21,341,000 34,978,000 45,162,000 45,979,000 46,653,000 39,084,000 42,713,000 30,155,000 28,475,000 17,830,000 3,061,000 4,430,000 6,894,000 8,714,000 12,818,000 15,792,000 19,272,000 29,032,000 30,290,000 22,972,000 5,287,000 18,040,000 7,823,000 8,675,000 4,107,000 14,381,000 14,592,000 14,754,000 3,617,000 7,342,000 556,000 637,000 2,176,000 1,475,000 8,139,000 7,628,000 5,078,000 8,641,000 7,863,000 7,210,000 4,769,000 3,039,000 4,117,000 13,992,000 12,076,000 10,754,000 10,426,000 15,374,000 5,408,000 5,251,000 5,080,000 5,102,000 1,176,000 958,000 683,000 344,000 346,000 486,000 634,000 811,000 771,000 1,031,000 1,069,000 1,194,000 1,276,000 1,371,000 2,256,000 2,337,000 2,778,000 2,792,000 1,302,000 1,592,000 1,991,000                
        total liabilities
      139,906,000 165,120,000 117,874,000 239,831,000 219,528,000 222,444,000 212,585,000 221,731,000 217,244,000 220,126,000 228,765,000 181,558,000 200,901,000 233,297,000 219,172,000 272,755,000 267,749,000 370,250,000 354,823,000 322,397,000 326,374,000 338,763,000 350,772,000 351,457,000 353,793,000 368,068,000 338,544,000 338,935,000 321,533,000 349,043,000 335,655,000 420,288,000 420,661,000 319,488,000 234,591,000 233,076,000 224,653,000 230,714,000 247,456,000 223,421,000 218,104,000 192,971,000 190,017,000 199,010,000 193,929,000 196,657,000 189,557,000 191,385,000 369,013,000 373,150,000 361,884,000 248,309,000 265,869,000 266,218,000 270,999,000 257,134,000 265,273,000 246,509,000 222,984,000 206,132,000 214,889,000 196,652,000 183,339,000 181,189,000 300,542,000 277,159,000 256,229,000 167,045,000 175,905,000 203,825,000 201,508,000 223,194,000 220,263,000 227,111,000 225,525,000 233,427,000 222,329,000 216,852,000 205,623,000 195,765,000 190,516,000 229,274,000 341,468,000 340,432,000 41,267,000 45,731,000 47,705,000 52,308,000 53,006,000 45,719,000 49,760,000 51,608,000 48,146,000 37,467,000 36,043,000 39,858,000 40,836,000 
        commitments and contingencies
                                                                                                       
        stockholders’ equity:
                                                                                                       
        convertible preferred stock, 0.001 par value:
                                                                                                       
        authorized: 5,000,000 shares; issued and outstanding: no shares as of march 31, 2026 and december 31, 2025
                                                                                                       
        common stock
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 108,136,967 shares as of march 31, 2026 and 107,781,863 shares as of december 31, 2025
      108,000                                                                                                 
        additional paid-in capital
      1,258,153,000  1,275,619,000 1,264,056,000 1,253,924,000  1,255,183,000 1,295,277,000 1,293,923,000  1,301,905,000 1,301,013,000 1,286,570,000  1,265,943,000 1,283,789,000 1,272,353,000  1,270,871,000 1,257,075,000 1,269,790,000  1,280,051,000 1,274,136,000 1,264,000,000  1,254,344,000 1,246,877,000 1,234,846,000  1,219,110,000 1,210,321,000 1,196,158,000  1,187,987,000 1,179,283,000 1,187,515,000  1,173,609,000 1,164,565,000 1,137,500,000  1,169,223,000 1,170,159,000 1,158,200,000  1,147,196,000 1,141,428,000 1,132,092,000  1,121,259,000 1,086,944,000 1,080,380,000  1,068,871,000 1,063,495,000  1,040,185,000 1,018,317,000 920,607,000  914,194,000 907,481,000 903,733,000  806,569,000 784,744,000 716,908,000  644,760,000 631,629,000 615,149,000  577,856,000 569,632,000 559,081,000      331,499,000 331,005,000 325,344,000 341,080,000 319,720,000 319,012,000 326,708,000 278,187,000 251,521,000 262,402,000 254,120,000 262,839,000 261,734,000 269,339,000 275,984,000 280,062,000 
        retained earnings
      136,653,000 76,795,000 12,955,000                                                                                               
        accumulated other comprehensive loss
      -1,674,000 -124,000 -184,000 -762,000 -837,000 -1,260,000 -443,000 -1,966,000 -1,856,000 -1,269,000 -2,368,000 -3,029,000 -3,535,000 -4,963,000 -6,768,000 -5,738,000 -4,313,000 -1,452,000 -400,000 -183,000 -133,000 -81,000 -132,000 -52,000 -188,000 -92,000 -12,460,000 -10,381,000 -8,668,000 -10,291,000 -8,628,000 -7,560,000 -3,012,000 -5,097,000 -5,697,000 -8,617,000 -12,268,000      -354,000 -366,000 -349,000 -402,000 -344,000 -356,000 -297,000 -305,000 -300,000 -296,000 -314,000 -300,000 -309,000     -363,000               -279,000 -360,000 -630,000 -946,000 -1,755,000 -1,721,000 -1,647,000 -1,562,000 -1,028,000 -1,617,000              
        total stockholders’ equity
      1,393,240,000 1,364,425,000 1,288,498,000 1,227,980,000 1,159,837,000 1,120,692,000 1,038,985,000 1,028,892,000 991,592,000 1,038,101,000 955,566,000 945,558,000 761,729,000 779,297,000 749,884,000 838,158,000 793,126,000 862,396,000 847,843,000 830,588,000 909,406,000 905,113,000 958,246,000 965,190,000 965,698,000 970,918,000 961,283,000 973,226,000 999,887,000 1,012,112,000 1,008,315,000 1,105,485,000 1,118,998,000 571,584,000 589,537,000 570,218,000 601,557,000 552,782,000 552,840,000 542,362,000 534,721,000 526,533,000 605,856,000 424,745,000 405,942,000 391,622,000 377,600,000 366,306,000 351,985,000 340,229,000 343,122,000 314,535,000 315,797,000 321,594,000 330,826,000 383,540,000 408,413,000 448,960,000 426,693,000 339,527,000 334,783,000 288,477,000 400,542,000 468,178,000 255,327,000 266,596,000 272,594,000 228,247,000 220,985,000 230,748,000 255,765,000 385,241,000 407,084,000 397,842,000  387,873,000 382,288,000 375,039,000 386,653,000 339,873,000 295,003,000 295,656,000 280,933,000 268,041,000 335,457,000 307,630,000 296,059,000 297,178,000 240,080,000 205,059,000 210,983,000 198,582,000 202,377,000 195,492,000 196,808,000 196,961,000 194,456,000 
        total liabilities and stockholders’ equity
      1,533,146,000 1,529,545,000 1,406,372,000 1,467,811,000 1,379,365,000 1,343,136,000 1,251,570,000 1,250,623,000 1,208,836,000 1,258,227,000 1,184,331,000 1,127,116,000 962,630,000 1,012,594,000 969,056,000 1,110,913,000 1,060,875,000 1,232,646,000 1,202,666,000 1,152,985,000 1,235,780,000 1,243,876,000 1,309,018,000 1,316,647,000 1,319,491,000 1,338,986,000 1,299,827,000 1,312,161,000 1,321,420,000 1,361,155,000 1,343,970,000 1,525,773,000 1,539,659,000 891,072,000 824,128,000 803,294,000 826,210,000 783,496,000 800,296,000 765,783,000 752,825,000 719,504,000 795,873,000 623,755,000 599,871,000 588,279,000 567,157,000 557,691,000 720,998,000 713,379,000 705,006,000 562,844,000 581,666,000 587,812,000 601,825,000 640,674,000 673,686,000        555,869,000 543,755,000 528,823,000 395,292,000 396,890,000 434,573,000 457,273,000 608,435,000 627,347,000 624,953,000  621,300,000 604,617,000 591,891,000 592,276,000 535,638,000 485,519,000 524,930,000 622,401,000 608,473,000 376,724,000 353,361,000 343,764,000 349,486,000 293,086,000 250,778,000 260,743,000 250,190,000 250,523,000 232,959,000 232,851,000 236,819,000 235,292,000 
        income taxes receivable
       3,282,000 2,946,000 121,297,000 115,898,000  104,270,000 98,683,000 93,926,000  84,487,000                                                                                       
        long-term income taxes payable
       1,393,000 1,329,000 120,224,000 115,124,000 109,383,000 101,350,000 92,728,000 85,569,000 78,947,000 77,655,000 1,973,000 3,963,000 5,892,000 7,818,000 12,220,000 16,681,000 21,424,000 25,797,000 31,853,000 36,391,000 41,333,000 45,882,000 50,472,000 55,163,000 60,094,000 64,765,000 69,359,000 73,365,000 77,280,000 81,400,000 84,804,000 92,052,000      2,897,000 2,800,000 3,110,000 2,903,000 2,767,000 2,679,000 2,790,000 2,769,000 1,800,000 1,789,000 1,905,000 6,561,000 6,497,000 6,483,000 6,534,000 6,533,000 9,383,000 9,343,000 9,343,000 8,032,000 4,633,000 4,610,000 4,577,000 2,024,000 2,016,000 2,042,000 1,994,000 1,951,000 1,880,000 1,850,000 1,953,000 3,020,000 2,992,000 2,983,000 2,917,000 3,136,000                        
        authorized: 5,000,000 shares; issued and outstanding: no shares as of december 31, 2025 and december 31, 2024
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,781,863 shares as of december 31, 2025 and 106,843,112 shares as of december 31, 2024
       108,000                                                                                                
        additional paid in capital
       1,287,646,000    1,275,505,000    1,324,796,000    1,297,408,000    1,298,966,000    1,270,426,000    1,261,142,000    1,226,588,000    1,212,798,000    1,181,230,000    1,130,368,000    1,153,435,000    1,128,148,000    1,075,761,000   1,056,131,000    911,632,000    818,992,000    655,724,000    601,821,000    550,210,000 545,346,000 535,123,000 379,845,000 327,524,000                 
        authorized: 5,000,000 shares; issued and outstanding: no shares as of september 30, 2025 and december 31, 2024
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,650,133 shares as of september 30, 2025 and 106,843,112 shares as of december 31, 2024
        108,000                                                                                               
        authorized: 5,000,000 shares; issued and outstanding: no shares as of june 30, 2025 and december 31, 2024
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,593,820 shares as of june 30, 2025 and 106,843,112 shares as of december 31, 2024
         108,000                                                                                              
        accumulated deficit
         -35,422,000 -93,357,000 -153,660,000 -215,862,000 -264,527,000 -300,583,000 -285,534,000 -344,079,000 -352,535,000 -521,415,000 -513,256,000 -509,398,000 -440,004,000 -475,024,000 -435,227,000 -422,737,000 -426,413,000 -360,364,000 -365,344,000 -321,787,000 -309,008,000 -298,227,000 -290,244,000 -280,712,000 -263,381,000 -226,401,000 -204,294,000 -202,276,000 -97,383,000 -74,255,000 -636,227,000 -592,863,000 -600,557,000 -573,802,000 -615,051,000 -611,606,000 -616,117,000 -602,439,000 -604,317,000 -563,129,000 -745,164,000 -752,024,000 -761,526,000 -769,367,000 -774,880,000 -779,924,000 -787,727,000 -777,950,000 -772,225,000 -764,381,000 -753,979,000 -737,847,000     -580,820,000 -576,590,000 -535,533,000 -506,872,000 -435,427,000 -563,858,000 -540,565,000 -513,069,000 -489,098,000 -435,712,000 -412,436,000 -375,400,000 -230,735,000 -194,966,000 -180,170,000 -173,672,000 -170,952,000 -167,396,000 -169,465,000 -146,819,000 -38,354,000 -30,973,000 -34,381,000 -48,877,000 -54,237,000 -4,848,000 -11,392,000 -21,778,000 -30,102,000 -38,407,000 -47,024,000 -52,032,000 -56,559,000 -61,628,000 -67,157,000 -73,042,000 -78,939,000  
        authorized: 5,000,000 shares; issued and outstanding: no shares as of march 31, 2025 and december 31, 2024
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,411,916 shares as of march 31, 2025 and 106,843,112 shares as of december 31, 2024
          107,000                                                                                             
        income tax receivable
           109,947,000    88,768,000                                                                                        
        income taxes payable
           1,264,000 1,114,000 1,005,000 3,899,000 5,099,000 8,638,000 12,942,000 15,669,000 18,137,000 20,024,000 20,846,000 21,015,000 20,607,000 20,443,000 19,754,000 20,186,000  20,008,000 20,044,000 19,892,000                                     703,000 896,000 3,313,000 486,000 406,000 478,000 462,000 638,000 479,000 846,000 748,000 834,000 433,000 512,000 454,000      13,000 26,000 9,000 200,000    53,000   71,000 22,000 21,000    
        authorized: 5,000,000 shares; issued and outstanding: no shares as of december 31, 2024 and december 31, 2023
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 106,843,112 shares as of december 31, 2024 and 107,853,778 shares as of december 31, 2023
           107,000                                                                                            
        property, plant and equipment
            73,374,000 74,916,000 67,277,000 67,808,000 73,466,000 87,167,000 89,393,000 86,255,000 78,563,000 81,735,000 54,965,000 56,035,000 51,516,000 50,058,000 53,687,000 57,693,000 59,425,000 50,858,000 47,743,000 44,714,000 38,571,000 41,590,000 22,637,000 57,028,000 49,174,000 50,235,000 48,392,000 54,303,000 54,035,000 54,305,000 56,468,000 58,442,000 59,191,000 55,056,000 56,403,000 56,616,000 59,077,000 60,689,000 61,577,000 64,023,000 65,899,000 67,411,000 70,110,000 72,642,000 72,772,000 75,831,000 78,218,000 86,905,000 84,255,000 87,071,000 81,928,000 72,494,000 71,187,000 70,520,000 67,770,000                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at september 30, 2024 and december 31, 2023
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 106,575,437 shares at september 30, 2024 and 107,853,778 shares at december 31, 2023
            107,000                                                                                           
        deferred tax liabilities
             3,949,000 4,205,000 4,462,000 5,819,000 5,819,000 26,658,000 24,964,000 25,746,000 25,159,000 24,572,000 23,985,000 23,888,000 15,147,000 14,711,000 14,336,000 15,139,000 14,724,000 14,140,000 13,846,000    18,960,000    9,830,000    11,600,000 14,779,000 14,984,000 14,677,000                                                         
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2024 and december 31, 2023
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,680,174 shares at june 30, 2024 and 107,853,778 shares at december 31, 2023
             108,000                                                                                          
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2024 and december 31, 2023
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,780,744 shares at march 31, 2024 and 107,853,778 shares at december 31, 2023
              108,000                                                                                         
        convertible notes
                   10,378,000 10,368,000 49,248,000 73,860,000 163,687,000 161,733,000 159,806,000 157,905,000  154,182,000 152,359,000 150,561,000                                        136,032,000 133,312,000 130,646,000 128,034,000 136,950,000 160,000,000 160,000,000 160,000,000   160,000,000 160,000,000 160,000,000 160,000,000 160,000,000  160,000,000 195,000,000                
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2023 and december 31, 2022
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,853,778 shares at december 31, 2023 and 107,610,356 shares at december 31, 2022
               108,000                                                                                        
        authorized: 5,000,000 shares; issued and outstanding: no shares at september 30, 2023 and december 31, 2022
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,509,241 shares at september 30, 2023 and 107,610,356 shares at december 31, 2022
                108,000                                                                                       
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2023 and december 31, 2022
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,131,476 shares at june 30, 2023 and 107,610,356 shares at december 31, 2022
                 109,000                                                                                      
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2023 and december 31, 2022
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 108,845,179 shares at march 31, 2023 and 107,610,356 shares at december 31, 2022
                  109,000                                                                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2022 and december 31, 2021
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,610,356 shares at december 31, 2022 and 109,292,235 shares at december 31, 2021
                   108,000                                                                                    
        authorized: 5,000,000 shares; issued and outstanding: no shares at september 30, 2022 and december 31, 2021
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 107,482,010 shares at september 30, 2022 and 109,292,235 shares at december 31, 2021
                    107,000                                                                                   
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2022 and december 31, 2021
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 110,528,531 shares at june 30, 2022 and 109,292,235 shares at december 31, 2021
                     111,000                                                                                  
        convertible preferred stock, .001 par value:
                                                                                                       
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2022 and december 31, 2021
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 110,235,608 shares at march 31, 2022 and 109,292,235 shares at december 31, 2021
                      110,000                                                                                 
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2021 and december 31, 2020
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,292,235 shares at december 31, 2021 and 111,697,994 shares at december 31, 2020
                       109,000                                                                                
        authorized: 5,000,000 shares; issued and outstanding: no shares at september 30, 2021 and december 31, 2020
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,364,769 shares at september 30, 2021 and 111,697,994 shares at december 31, 2020
                        109,000                                                                               
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2021 and december 31, 2020
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 108,897,295 shares at june 30, 2021 and 111,697,994 shares at december 31, 2020
                         109,000                                                                              
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2021 and december 31, 2020
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 112,505,254 shares at march 31, 2021 and 111,697,994 shares at december 31, 2020
                          113,000                                                                             
        unbilled receivables, long-term
                           232,056,000 260,404,000 289,044,000 314,706,000 343,703,000 376,619,000 419,532,000 459,148,000 497,003,000 535,422,000 571,269,000 609,560,000                                                                 
        income taxes payable, short-term
                           20,064,000    19,142,000 18,198,000 17,461,000 16,364,000 16,390,000 17,784,000 18,794,000 16,188,000                                                                 
        convertible notes, long-term
                           156,031,000    148,788,000 147,039,000 145,314,000 143,612,000 141,934,000 140,279,000 138,647,000 137,037,000 135,447,000  129,690,000 127,916,000 126,167,000 124,443,000 122,744,000 121,069,000 120,901,000 119,414,000 117,949,000 116,508,000 115,089,000 113,692,000 112,316,000 110,962,000 109,629,000 108,316,000  151,487,000 147,556,000 143,875,000 140,244,000 136,845,000 130,354,000 127,258,000 124,359,000 121,500,000                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2020 and december 31, 2019
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 111,697,994 shares at december 31, 2020 and 112,131,352 shares at december 31, 2019
                           112,000                                                                            
        authorized: 5,000,000 shares
                                                                                                       
        issued and outstanding: no shares at september 30, 2020 and december 31, 2019
                                                                                                       
        authorized: 500,000,000 shares
                                                                                                       
        issued and outstanding: 113,922,520 shares at september 30, 2020 and 112,131,352 shares at december 31, 2019
                            114,000                                                                           
        issued and outstanding: no shares at june 30, 2020 and december 31, 2019
                                                                                                       
        issued and outstanding: 113,743,652 shares at june 30, 2020 and 112,131,352 shares at december 31, 2019
                             114,000                                                                          
        issued and outstanding: no shares at march 31, 2020 and december 31, 2019
                                                                                                       
        issued and outstanding: 113,275,229 shares at march 31, 2020 and 112,131,352 shares at december 31, 2019
                              113,000                                                                         
        long-term imputed financing obligation
                                   36,297,000 36,558,000 36,816,000 37,045,000 37,262,000 37,471,000 37,677,000 37,859,000 38,029,000 38,194,000 38,355,000 38,496,000 38,625,000 38,751,000 38,874,000 38,974,000 39,063,000 39,148,000 39,232,000 39,295,000 39,349,000 39,685,000 39,724,000 39,685,000 45,919,000 45,878,000 45,785,000 44,285,000 36,386,000 34,596,000 34,362,000 27,899,000                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2019 and december 31, 2018
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 112,131,352 shares at december 31, 2019 and 109,017,708 shares at december 31, 2018
                               112,000                                                                        
        assets held for sale
                                77,203,000 78,388,000                                                                      
        liabilities held for sale
                                14,620,000 13,706,000                                                                      
        issued and outstanding: no shares at september 30, 2019 and december 31, 2018
                                                                                                       
        issued and outstanding: 111,493,448 shares at september 30, 2019 and 109,017,708 shares at december 31, 2018
                                111,000                                                                       
        issued and outstanding: no shares at june 30, 2019 and december 31, 2018
                                                                                                       
        issued and outstanding: 111,127,444 shares at june 30, 2019 and 109,017,708 shares at december 31, 2018
                                 111,000                                                                      
        issued and outstanding: no shares at march 31, 2019 and december 31, 2018
                                                                                                       
        issued and outstanding: 110,396,011 shares at march 31, 2019 and 109,017,708 shares at december 31, 2018
                                  110,000                                                                     
        convertible notes, short-term
                                     80,648,000 79,541,000 78,451,000 131,490,000              168,658,000 164,047,000 159,731,000 155,473,000                                              
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2018 and december 31, 2017
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,017,708 shares at december 31, 2018 and 109,763,967 shares at december 31, 2017
                                   109,000                                                                    
        issued and outstanding: no shares at september 30, 2018 and december 31, 2017
                                                                                                       
        issued and outstanding: 108,500,937 shares at september 30, 2018 and 109,763,967 shares at december 31, 2017
                                    109,000                                                                   
        issued and outstanding: no shares at june 30, 2018 and december 31, 2017
                                                                                                       
        issued and outstanding: 107,345,041 shares at june 30, 2018 and 109,763,967 shares at december 31, 2017
                                     107,000                                                                  
        issued and outstanding: no shares at march 31, 2018 and december 31, 2017
                                                                                                       
        issued and outstanding: 107,485,217 shares at march 31, 2018 and 109,763,967 shares at december 31, 2017
                                      107,000                                                                 
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2017 and december 31, 2016
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,763,967 shares at december 31, 2017 and 111,053,734 shares at december 31, 2016
                                       110,000                                                                
        issued and outstanding: no shares at september 30, 2017 and december 31, 2016
                                                                                                       
        issued and outstanding: 109,778,058 shares at september 30, 2017 and 111,053,734 shares at december 31, 2016
                                        110,000                                                               
        issued and outstanding: no shares at june 30, 2017 and december 31, 2016
                                                                                                       
        issued and outstanding: 109,277,223 shares at june 30 2017 and 111,053,734 shares at december 31, 2016
                                         109,000                                                              
        issued and outstanding: no shares at march 31, 2017 and december 31, 2016
                                                                                                       
        issued and outstanding: 111,729,448 shares at march 31, 2017 and 111,053,734 shares at december 31, 2016
                                          112,000                                                             
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2016 and december 31, 2015
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 111,053,734 shares at december 31, 2016 and 109,287,591 shares at december 31, 2015
                                           111,000                                                            
        accumulated other comprehensive income
                                           -13,508,000 -9,273,000 -6,196,000 -450,000 373,000                   -362,000 -291,000 -174,000 -238,000 87,000 487,000 814,000 333,000 869,000 -1,681,000 -569,000 723,000 124,000 52,000            -800,000 -1,277,000 470,000  465,000 515,000 924,000      
        accrued acquisition liability
                                            10,779,000 11,476,000 12,100,000                                                         
        issued and outstanding: no shares at september 30, 2016 and december 31, 2015
                                                                                                       
        issued and outstanding: 110,451,608 shares at september 30, 2016 and 109,287,591 shares at december 31, 2015
                                            110,000                                                           
        issued and outstanding: no shares at june 30, 2016 and december 31, 2015
                                                                                                       
        issued and outstanding: 109,896,610 shares at june 30, 2016 and 109,287,591 shares at december 31, 2015
                                             110,000                                                          
        issued and outstanding: no shares at march 31, 2016 and december 31, 2015
                                                                                                       
        issued and outstanding: 110,077,451 shares at march 31, 2016 and 109,287,591 shares at december 31, 2015
                                              110,000                                                         
        deferred taxes
                                                 1,113,000 1,123,000 187,000 1,379,000 1,069,000 1,009,000 205,000 288,000 788,000 788,000 788,000 1,807,000 2,798,000 2,798,000 1,863,000 2,420,000 2,420,000 2,420,000 1,141,000 654,000 587,000 129,000 892,000 919,000 209,000 88,000 222,000 233,000 11,595,000 11,595,000                         
        deferred taxes, long term
                                               162,485,000    536,000    4,797,000    4,458,000   7,531,000 7,190,000 3,023,000  2,974,000    2,034,000    1,857,000    116,209,000    98,193,000 102,219,000 111,426,000 80,355,000 69,059,000   74,507,000              
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2015 and december 31, 2014
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 109,287,591 shares at december 31, 2015 and 115,161,675 shares at december 31, 2014
                                               109,000                                                        
        deferred tax assets, long-term
                                                143,834,000                                                       
        issued and outstanding: no shares at september 30, 2015 and december 31, 2014
                                                                                                       
        issued and outstanding: 116,533,951 shares at september 30, 2015 and 115,161,675 shares at december 31, 2014
                                                116,000                                                       
        deferred taxes, long-term
                                                 454,000 447,000  560,000 571,000 643,000  4,806,000 4,806,000 4,806,000  7,575,000 7,531,000    3,020,000    1,604,000  1,069,000 957,000 1,641,000  2,613,000 2,577,000 121,643,000  110,648,000 106,354,000 104,457,000      63,387,000 72,587,000  75,295,000 69,198,000 60,462,000 61,473,000 43,557,000 35,355,000 33,431,000 32,554,000 32,777,000 35,527,000 37,637,000 37,270,000 39,922,000 
        issued and outstanding: no shares at june 30, 2015 and december 31, 2014
                                                                                                       
        issued and outstanding: 116,360,766 shares at june 30, 2015 and 115,161,675 shares at december 31, 2014
                                                 116,000                                                      
        issued and outstanding: no shares at march 31, 2015 and december 31, 2014
                                                                                                       
        issued and outstanding: 115,473,870 shares at march 31, 2015 and 115,161,675 shares at december 31, 2014
                                                  115,000                                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2014 and december 31, 2013
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 115,161,675 shares at december 31, 2014 and 113,459,390 shares at december 31, 2013
                                                   115,000                                                    
        issued and outstanding: no shares at september 30, 2014 and december 31, 2013
                                                                                                       
        issued and outstanding: 114,753,168 shares at september 30, 2014 and 113,459,390 shares at december 31, 2013
                                                    115,000                                                   
        issued and outstanding: no shares at june 30, 2014 and december 31, 2013
                                                                                                       
        issued and outstanding: 114,384,666 shares at june 30, 2014 and 113,459,390 shares at december 31, 2013
                                                     114,000                                                  
        other accrued liabilities
                                                      8,171,000 7,848,000 7,293,000 5,957,000 7,954,000 12,402,000 13,448,000 9,764,000 15,173,000 10,132,000 6,966,000 11,778,000 14,165,000 6,890,000 5,994,000 7,386,000 4,020,000 5,576,000 2,991,000 2,541,000 3,178,000 4,988,000 7,369,000 8,017,000 5,060,000 7,604,000 8,547,000 9,177,000 6,075,000 3,921,000 3,560,000 5,604,000 5,693,000 11,342,000 9,445,000 8,600,000 6,457,000 7,121,000 6,002,000 4,792,000 3,606,000 4,041,000 4,304,000 6,868,000 5,313,000 3,252,000    
        issued and outstanding: no shares at march 31, 2014 and december 31, 2013
                                                                                                       
        issued and outstanding: 113,744,776 shares at march 31, 2014 and 113,459,390 shares at december 31, 2013
                                                      114,000                                                 
        accrued litigation expenses
                                                       498,000 1,020,000 1,673,000 10,256,000 9,822,000 10,035,000 9,861,000 10,808,000 9,830,000 7,635,000 4,744,000 4,060,000 3,890,000 3,032,000 4,555,000 5,147,000 6,220,000 8,592,000 7,295,000 14,265,000 13,636,000 11,743,000 24,097,000 26,234,000 25,311,000 24,284,000 23,986,000 23,143,000 24,276,000 14,364,000 6,307,000 4,633,000                 
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2013 and december 31, 2012
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 113,459,390 shares at december 31, 2013 and 111,525,021 shares at december 31, 2012
                                                       113,000                                                
        issued and outstanding: no shares at september 30, 2013 and december 31, 2012
                                                                                                       
        issued and outstanding: 112,706,137 shares at september 30, 2013 and 111,525,021 shares at december 31, 2012
                                                        113,000                                               
        issued and outstanding: no shares at june 30, 2013 and december 31, 2012
                                                                                                       
        issued and outstanding: 112,460,439 shares at june 30, 2013 and 111,525,021 shares at december 31, 2012
                                                         112,000                                              
        issued and outstanding: no shares at march 31, 2013 and december 31, 2012
                                                                                                       
        issued and outstanding: 111,641,153 shares at march 31, 2013 and 111,525,021 shares at december 31, 2012
                                                          112,000                                             
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2012 and december 31, 2011
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 111,525,021 shares at december 31, 2012 and 110,267,145 shares at december 31, 2011
                                                           112,000                                            
        issued and outstanding: no shares at september 30, 2012 and december 31, 2011
                                                                                                       
        issued and outstanding: 110,879,633 shares at september 30, 2012 and 110,267,145 shares at december 31, 2011
                                                            111,000                                           
        issued and outstanding: no shares at june 30, 2012 and december 31, 2011
                                                                                                       
        issued and outstanding: 110,696,401 shares at june 30, 2012 and 110,267,145 shares at december 31, 2011
                                                             111,000                                          
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2012 and december 31, 2011
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 110,409,906 shares at march 31, 2012 and 110,267,145 shares at december 31, 2011
                                                              110,000                                         
        prepaid expenses and other current assets
                                                               10,101,000 10,448,000                                       
        liabilities, contingently redeemable common stock & stockholders’ equity
                                                                                                       
        contingently redeemable common stock:
                                                                                                       
        issued and outstanding: no shares at september 30, 2011 and 4,788,125 shares at december 31, 2010
                                                                                                       
        issued and outstanding: no shares at september 30, 2011 and december 31, 2010
                                                                                                       
        issued and outstanding: 109,961,324 shares at september 30, 2011 and 102,676,544 shares at december 31, 2010
                                                               110,000                                        
        total liabilities, contingently redeemable common stock and stockholders’ equity
                                                               695,469,000 763,177,000 659,159,000 663,172,000 598,629,000 697,381,000 762,867,000                                  
        issued and outstanding: 4,788,125 shares at june 30, 2011 and december 31, 2010
                                                                113,500,000                                       
        issued and outstanding: no shares at june 30, 2011 and december 31, 2010
                                                                                                       
        issued and outstanding: 109,615,714 shares at june 30, 2011 and 102,676,544 shares at december 31, 2010
                                                                110,000                                       
        issued and outstanding: 4,788,125 shares at march 31, 2011 and december 31, 2010
                                                                 113,500,000                                      
        issued and outstanding: no shares at march 31, 2011 and december 31, 2010
                                                                                                       
        issued and outstanding: 102,997,305 shares at march 31, 2011 and 102,676,544 shares at december 31, 2010
                                                                 103,000                                      
        non-cash obligation for construction in progress
                                                                   25,900,000 25,900,000 25,900,000 25,100,000                                 
        convertible notes, current
                                                                                                       
        issued and outstanding: 4,788,125 shares at december 31, 2010 and no shares at december 31, 2009
                                                                  113,500,000                                     
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2010 and december 31, 2009
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 102,676,544 shares at december 31, 2010 and 105,934,157 shares at december 31, 2009
                                                                  103,000                                     
        restricted cash
                                                                   722,000 664,000 661,000 639,000 648,000 632,000 637,000 632,000 1,238,000 2,412,000 18,345,000 2,286,000 2,231,000 2,299,000 2,293,000 2,287,000 2,281,000 2,269,000                   
        liabilities
                                                                                                       
        outstanding: 4,788,125 shares at september 30, 2010 and no shares at december 31, 2009
                                                                   113,500,000                                    
        stockholders’ equity
                                                                                                       
        issued and outstanding: no shares at september 30, 2010 and december 31, 2009
                                                                                                       
        issued and outstanding: 111,729,266 shares at september 30, 2010 and 105,934,157 shares at december 31, 2009
                                                                   107,000                                    
        share purchase contract
                                                                   -90,000,000                                    
        outstanding: 4,788,125 shares at june 30, 2010 and no shares at december 31, 2009
                                                                    113,500,000                                   
        issued and outstanding: no shares at june 30, 2010 and december 31, 2009
                                                                                                       
        issued and outstanding: 112,025,080 shares at june 30, 2010 and 105,934,157 shares at december 31, 2009
                                                                    107,000                                   
        outstanding: 4,788,125 shares at march 31, 2010 and no shares at december 31, 2009
                                                                     113,500,000                                  
        issued and outstanding: no shares at march 31, 2010 and december 31, 2009
                                                                                                       
        issued and outstanding: 109,786,794 shares at march 31, 2010 and 105,934,157 shares at december 31, 2009
                                                                     110,000                                  
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2009 and december 31, 2008
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding 105,934,157 shares at december 31, 2009 and 103,803,006 shares at december 31, 2008
                                                                      106,000                                 
        deferred revenue, non-current
                                                                        20,000                               
        issued and outstanding: no shares at september 30, 2009 and december 31, 2008
                                                                                                       
        issued and outstanding: 105,418,043 shares at september 30, 2009 and 103,803,006 shares at december 31, 2008
                                                                       105,000                                
        issued and outstanding: no shares at june 30, 2009 and december 31, 2008
                                                                                                       
        issued and outstanding: 104,900,875 shares at june 30, 2009 and 103,803,006 shares at december 31, 2008
                                                                        105,000                               
        deferred revenue, less current portion
                                                                         90,000 90,000 33,000 57,000   19,000 64,000 112,000 1,554,000 7,259,000 5,167,000 7,984,000 8,317,000 7,905,000  5,314,000 4,552,000 5,453,000 11,134,000 16,113,000 18,022,000 13,040,000 15,808,000 16,278,000 15,542,000 15,901,000 17,124,000 19,187,000 22,406,000 
        issued and outstanding: no shares at march 31, 2009 and december 31, 2008
                                                                                                       
        issued and outstanding: 104,466,738 shares at march 31, 2009 and 103,803,006 shares at december 31, 2008
                                                                         104,000                              
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2008 and december 31, 2007
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding 103,803,006 shares at december 31, 2008 and 105,294,534 shares at december 31, 2007
                                                                          104,000                             
        issued and outstanding: no shares at september 30, 2008 and december 31, 2007
                                                                                                       
        issued and outstanding: 104,801,363 shares at september 30, 2008 and 105,294,534 shares at december 31, 2007
                                                                           105,000                            
        issued and outstanding: no shares at june 30, 2008 and december 31, 2007
                                                                                                       
        issued and outstanding: 105,017,169 shares at june 30, 2008 and 105,294,534 shares at december 31, 2007
                                                                            105,000                           
        authorized: 5,000,000 shares issued and outstanding: no shares at march 31, 2008 and december 31, 2007
                                                                                                       
        authorized: 500,000,000 shares issued and outstanding: 104,428,295 shares at march 31, 2008 and 105,294,534 shares at december 31, 2007
                                                                             104,000                          
        marketable securities, long term
                                                                                  11,982,000 45,016,000 70,516,000 119,264,000 194,583,000   155,360,000              
        authorized: 5,000,000 shares;
                                                                                                       
        issued and outstanding: no shares at december 31, 2007 and december 31, 2006
                                                                                                       
        authorized: 500,000,000 shares;
                                                                                                       
        issued and outstanding 105,294,534 shares at december 31, 2007 and 103,820,383 shares at december 31, 2006
                                                                              105,000                         
        deferred and prepaid taxes
                                                                               11,703,000 11,540,000 11,388,000 11,388,000  3,834,000                   
        marketable securities, long-term
                                                                                3,501,000 5,997,000      242,906,000 299,325,000  98,567,000 102,123,000 145,705,000 128,843,000 121,756,000 123,322,000 89,174,000 105,914,000 111,095,000 69,592,000 54,000,000 50,723,000 36,868,000 
        issued and outstanding: no shares at september 30, 2007 and december 31, 2006
                                                                                                       
        issued and outstanding: 103,820,383 shares at september 30, 2007 and december 31, 2006
                                                                               104,000                        
        long-term taxes payable
                                                                                3,136,000 3,133,000                      
        stockholders' equity
                                                                                                       
        issued and outstanding: no shares at june 30, 2007 and december 31, 2006
                                                                                                       
        issued and outstanding: 103,820,383 shares at june 30, 2007 and december 31, 2006
                                                                                104,000                       
        total stockholders' equity
                                                                                395,785,000                       
        total liabilities and stockholders' equity
                                                                                621,310,000                       
        issued and outstanding: no shares at march 31, 2007 and december 31, 2006
                                                                                                       
        issued and outstanding: 103,820,383 shares at march 31, 2007 and december 31, 2006
                                                                                 104,000                      
        issued and outstanding: no shares at december 31, 2006 and december 31, 2005
                                                                                                       
        issued and outstanding: 103,820,383 shares at december 31, 2006 and 99,397,257 shares at december 31, 2005
                                                                                  104,000                     
        deferred stock-based compensation
                                                                                         -1,548,000              
        prepaid and deferred taxes
                                                                                   11,209,000  3,786,000 3,786,000 13,703,000 13,703,000 13,710,000 13,861,000 12,310,000 12,370,000 12,731,000 12,890,000 11,154,000 12,005,000 10,236,000 7,824,000 6,073,000 7,850,000 10,138,000 8,970,000 
        purchased intangible assets
                                                                                   20,017,000 21,337,000 22,351,000 23,650,000 22,294,000 23,437,000 20,844,000 21,765,000 22,672,000 12,522,000 12,852,000 13,184,000         
        liabilities and stockholders’ equity
                                                                                                       
        issued and outstanding: no shares at september 30, 2006 and december 31, 2005
                                                                                                       
        issued and outstanding: 103,820,243 shares at september 30, 2006 and 99,397,257 shares at december 31, 2005
                                                                                   104,000                    
        issued and outstanding: no shares at june 30, 2006 and december 31, 2005
                                                                                                       
        issued and outstanding: 103,807,711 shares at june 30, 2006 and 99,397,257 shares at december 31, 2005
                                                                                    104,000                   
        restricted investments
                                                                                     2,298,000 2,279,000 2,274,000 2,302,000 5,076,000 5,067,000 4,816,000 5,081,000 5,094,000 4,576,000 4,566,000 4,603,000 12,320,000 11,986,000 12,576,000 12,577,000 12,253,000 12,009,000 
        convertible note
                                                                                     160,000,000   300,000,000               
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2006 and december 31, 2005
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 102,505,771 shares at march 31, 2006 and 99,397,257 shares at december 31, 2005
                                                                                     103,000                  
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2005 and december 31, 2004
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 99,397,257 shares at december 31, 2005 and 102,971,000 shares at december 31, 2004
                                                                                      99,000                 
        issued and outstanding: no shares at september 30, 2005 and december 31, 2004
                                                                                                       
        issued and outstanding: 100,045,015 shares at september 30, 2005 and 102,971,000 shares at december 31, 2004
                                                                                       100,000                
        deferred revenue, long-term
                                                                                        6,630,000               
        other liabilities
                                                                                        1,992,000               
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2005 and december 31, 2004
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 99,935,000 shares at june 30, 2005 and 102,971,000 shares at december 31, 2004
                                                                                        100,000               
        deferred stock based compensation
                                                                                        -267,000               
        convertible debt
                                                                                         300,000,000              
        authorized: 5,000,000 shares; issued and outstanding: no shares at march 31, 2005 and december 31, 2004
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 99,324,124 shares at march 31, 2005 and 102,971,000 shares at december 31, 2004
                                                                                         99,000              
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2004 and december 31, 2003
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 102,971,000 shares at december 31, 2004 and 99,154,444 shares at december 31, 2003
                                                                                          103,000             
        accumulated other comprehensive gain
                                                                                          -878,000    201,000    1,069,000 818,000 412,000 -184,000 414,000 
        issued and outstanding: no shares at september 30, 2004 and december 31, 2003
                                                                                                       
        issued and outstanding: 101,748,603 shares at september 30, 2004 and 99,154,444 shares at december 31, 2003
                                                                                           102,000            
        authorized: 5,000,000 shares; issued and outstanding: no shares at june 30, 2004 and december 31, 2003
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 102,012,773 shares at june 30, 2004 and 99,154,444 shares at december 31, 2003
                                                                                            102,000           
        issued and outstanding: no shares at march 31, 2004 and december 31, 2003
                                                                                                       
        issued and outstanding: 102,167,499 shares at march 31, 2004 and 99,154,444 shares at december 31, 2003
                                                                                             102,000          
        authorized: 5,000,000 shares; issued and outstanding: no shares at december 31, 2003 and december 31, 2002
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 99,154,444 shares at december 31, 2003 and 97,542,210 shares at december 31, 2002
                                                                                              99,000         
        issued and outstanding: no shares at september 30, 2003 and december 31, 2002
                                                                                                       
        issued and outstanding: 97,415,435 shares at september 30, 2003 and 97,542,210 shares at december 31, 2002
                                                                                               97,000        
        issued and outstanding: no shares at june 30, 2003 and december 31, 2002
                                                                                                       
        issued and outstanding: 97,825,363 shares at june 30, 2003 and 97,542,210 shares at december 31, 2002
                                                                                                98,000       
        issued and outstanding: no shares at march 31, 2003 and september 30, 2002
                                                                                                       
        issued and outstanding: 96,820,097 shares at march 31, 2003 and 97,542,210 shares at december 31, 2002
                                                                                                 97,000      
        issued and outstanding: no shares at december 31, 2002 and september 30, 2002
                                                                                                       
        issued and outstanding: 97,542,210 shares at december 31, 2002 and 97,271,061 shares at september 30, 2002
                                                                                                  97,000     
        authorized: 5,000,000 shares; issued and outstanding: no shares at september 30, 2002 and september 30, 2001
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 97,271,061 shares at september 30, 2002 and 100,287,676 shares at september 30, 2001
                                                                                                   97,000    
        accounts and taxes payable, accrued payroll and other liabilities
                                                                                                    7,773,000 8,521,000 7,111,000 
        authorized: 5,000,000 shares; issued and outstanding: no shares
                                                                                                       
        authorized: 500,000,000 shares; issued and outstanding: 98,619,492 shares at june 30, 2002 and 100,287,676 shares at september 30, 2001
                                                                                                    99,000   
        issued and outstanding: no shares
                                                                                                       
        issued and outstanding: 99,835,097 shares at march 31, 2002 and 100,287,676 shares at september 30, 2001
                                                                                                     100,000  
        issued and outstanding: 100,298,670 shares at december 31, 2001 and 100,287,676 shares at september 30, 2001
                                                                                                      100,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 2002-03-31 2001-12-31 
                                                                                                         
          cash flows from operating activities:
                                                                                                         
          net income
        59,858,000 63,840,000 48,377,000 57,935,000 60,303,000 62,202,000 48,665,000 36,056,000 32,898,000 58,545,000 103,198,000 168,880,000 3,281,000 15,949,000 939,000   6,105,000 3,676,000           -2,018,000 -104,893,000 -15,357,000 -35,689,000 -36,168,000 7,695,000 2,605,000 3,006,000 -3,445,000 4,511,000 3,876,000 1,878,000 12,992,000 182,033,000 6,861,000 9,502,000 7,841,000 5,513,000 5,043,000 7,804,000         478,000 -10,585,000 -4,230,000 33,084,000 -20,576,000 -12,490,000 150,899,000         -14,558,000 -6,498,000 -2,720,000 -3,888,000 2,069,000 -22,646,000 4,944,000 1,817,000 9,381,000 14,496,000 5,360,000 4,440,000 6,543,000 10,387,000 8,324,000 8,305,000 8,617,000 5,007,000 4,528,000 5,069,000 5,529,000 5,885,000 5,897,000 6,748,000 6,174,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                                         
          stock-based compensation
        11,453,000 14,445,000 14,206,000 14,233,000 11,383,000 11,735,000 11,998,000 11,651,000 9,496,000 10,534,000 10,039,000 11,375,000 13,063,000 10,266,000 8,872,000 8,636,000 7,778,000 6,205,000 7,482,000 7,298,000 6,501,000 6,165,000 6,834,000 6,707,000 6,072,000 4,819,000 7,388,000 7,080,000 7,189,000 6,145,000 6,189,000 1,888,000 7,514,000 7,234,000 6,964,000 6,609,000 6,596,000 5,657,000 5,443,000 5,049,000 4,864,000 3,347,000 3,568,000 4,415,000 3,766,000 3,535,000 3,441,000 4,855,000 2,899,000 3,096,000 3,363,000 3,574,000 4,948,000 4,516,000 5,089,000 6,215,000 6,726,000 7,219,000 7,029,000 7,290,000 7,320,000 7,463,000 7,931,000 7,834,000 7,567,000 7,749,000 7,850,000 8,419,000 8,667,000 9,018,000 8,953,000 10,529,000 16,408,000 8,661,000 10,324,000 9,417,000 9,686,000 10,479,000 11,983,000 8,375,000                  
          depreciation
        9,601,000 9,457,000 9,049,000 8,483,000 8,122,000 7,980,000 7,758,000 7,519,000 7,723,000 7,079,000 7,930,000 9,804,000 8,874,000 8,410,000 8,218,000 7,849,000 7,040,000 7,187,000 6,870,000 6,555,000 6,198,000 8,098,000 6,228,000 7,325,000 7,300,000 7,281,000 6,294,000 5,123,000 4,809,000 2,638,000 2,578,000 2,587,000 2,942,000 3,304,000 3,249,000 3,330,000 3,392,000 3,577,000 3,423,000 2,996,000 2,969,000 3,005,000 3,079,000 3,068,000 3,227,000 3,275,000 3,371,000 3,498,000 3,481,000 3,885,000 3,895,000 3,880,000 3,791,000 3,607,000 3,215,000 3,269,000 3,099,000 3,117,000 2,668,000 2,803,000 2,868,000 2,374,000 2,386,000 2,473,000 2,622,000 2,600,000 2,632,000 2,807,000 2,886,000 2,903,000 2,835,000 2,702,000 2,567,000 2,782,000 2,737,000 3,116,000 2,964,000 2,931,000 2,538,000 2,815,000 2,424,000 2,426,000 2,343,000 1,972,000 1,735,000 1,726,000 1,165,000 1,020,000 1,469,000 1,416,000 1,399,000 1,330,000 1,304,000 1,269,000 1,256,000 1,209,000 1,270,000 
          amortization of intangible assets
        1,675,000 1,720,000 1,724,000 1,721,000 1,713,000 2,330,000 2,890,000 3,239,000 3,251,000 3,247,000 3,606,000 3,944,000 3,944,000 3,976,000 4,010,000 3,838,000 3,786,000 4,011,000 4,172,000 4,669,000 4,615,000 4,565,000 4,572,000 4,584,000 4,692,000 3,962,000 3,186,000 4,922,000 4,988,000 4,989,000 5,083,000 8,738,000 10,531,000 10,526,000 10,498,000 10,450,000 10,488,000 11,093,000 10,174,000 8,152,000 7,719,000 6,160,000 6,269,000 6,323,000 6,322,000 6,323,000 6,741,000 6,757,000 6,797,000 7,489,000 7,383,000 6,997,000 7,040,000 6,810,000 7,976,000 7,943,000 7,616,000 6,927,000 4,002,000 1,979,000 1,479,000 1,299,000 1,202,000 1,086,000 775,000 683,000 720,000 806,000  830,000 1,353,000 1,360,000             921,000 920,000 330,000 330,000          
          deferred income taxes
        3,942,000 6,702,000 18,270,000 2,696,000 1,922,000 -7,658,000 569,000 1,466,000 -4,252,000 1,794,000 9,375,000 -158,621,000 2,102,000 -991,000 470,000 562,000 648,000 -417,000 622,000 901,000 416,000 67,000 516,000 -225,000 327,000  -1,852,000 -52,000 -214,000  88,862,000 -1,368,000 -8,834,000  -4,622,000 728,000 -214,000  -6,973,000 1,674,000 1,142,000  -172,742,000 589,000 644,000  534,000 -26,000 5,967,000                                                 
          other
        518,000 72,000 -3,000 4,000 -4,000 -10,000 -10,000 39,000 -4,000 160,000                                                                                       
          change in operating assets and liabilities:
                                                                                                         
          accounts receivable
        28,134,000 -32,119,000 1,771,000 11,977,000 3,718,000 -35,556,000 -4,011,000 3,738,000 -4,006,000 -17,947,000 -2,444,000 -4,501,000 -4,039,000 -15,963,000 25,125,000 -11,269,000 -7,167,000 2,737,000 -5,431,000 -2,793,000 -8,034,000 5,122,000 2,173,000 9,166,000 -325,000 -5,429,000 -8,605,000 11,656,000 7,372,000 -8,071,000 -3,197,000 -12,904,000 -761,000 22,546,000 -10,504,000 -7,668,000 -5,484,000 5,464,000 -14,476,000 4,794,000 10,015,000 -6,094,000 -3,569,000 -204,000 -540,000 -902,000 7,404,000 -4,687,000 -5,565,000 -654,000 -594,000 -943,000 469,000 -77,000 -339,000 615,000 298,000 437,000 175,000 2,211,000 -2,445,000 89,000 226,000 479,000 -195,000 796,000 -363,000 316,000            -854,000 375,000 338,000 1,929,000 -2,161,000 307,000 -1,288,000 336,000 9,473,000 -7,276,000 948,000 464,000 -3,319,000 -768,000 -115,000 1,740,000 -1,662,000 2,093,000 
          unbilled receivables
        674,000 600,000 1,072,000 -2,929,000 1,923,000 5,253,000 -473,000 8,580,000 12,831,000 12,378,000 28,348,000 15,133,000 37,937,000 29,031,000 31,952,000 13,451,000 33,511,000 31,117,000 35,872,000 20,696,000 30,767,000 33,792,000 42,747,000 42,256,000 41,321,000 38,249,000 37,936,000 31,147,000 44,181,000 26,292,000 50,967,000 20,127,000 47,778,000                                                                 
          prepaids and other current assets
        -1,498,000  -2,934,000 195,000 -856,000  -1,964,000 -258,000 528,000  1,234,000 2,836,000 -3,285,000  -1,664,000 3,513,000 -663,000                                                                                 
          inventories
        -14,326,000 508,000 -6,003,000 6,098,000 -67,000 4,271,000 3,691,000 -4,997,000 -11,445,000 -1,539,000 -1,088,000 -7,347,000 -5,280,000 -7,023,000 -4,923,000 -3,074,000 2,318,000 -397,000 92,000 1,874,000 4,540,000 -248,000 -2,664,000 -1,706,000 238,000 -232,000 -528,000 -1,223,000 -1,370,000 -585,000 -231,000 -445,000 -595,000 -144,000 313,000 512,000 -208,000                                                             
          income taxes receivable
        466,000 -336,000 -594,000 -5,399,000 -5,951,000 -5,677,000 -5,587,000 -4,757,000 -5,158,000 -4,281,000                                                                                        
          accounts payable
        2,291,000 16,550,000 3,392,000 -6,632,000 -1,913,000 -1,715,000 -1,756,000 -21,000 4,072,000 1,668,000 1,768,000 -399,000 -8,805,000 3,293,000 1,257,000 6,321,000 1,104,000 1,188,000 -708,000 1,418,000 297,000 -3,239,000 -646,000 1,293,000 416,000 -1,864,000 3,718,000 -1,091,000 2,171,000 -2,421,000 951,000 733,000 -1,531,000 2,144,000 -2,399,000 582,000 -978,000 71,000 135,000 1,901,000 266,000 -1,620,000 872,000 -908,000 -965,000 1,581,000 -331,000 7,000 749,000 -1,145,000 466,000 1,378,000 -2,243,000 -493,000    6,374,000 2,094,000 4,091,000 -1,366,000 -2,120,000 314,000 -639,000 -2,358,000 828,000 -4,597,000 8,647,000 -2,795,000 1,827,000 -2,514,000 -125,000                          
          accrued salaries and benefits and other liabilities
        -11,335,000 13,050,000 -3,624,000 3,944,000 -6,822,000 10,237,000 -5,375,000 6,036,000 -10,327,000 7,637,000 -12,722,000 12,673,000 -7,547,000 6,066,000 -7,838,000 3,880,000 -6,853,000 5,984,000 -4,051,000 4,286,000 -7,861,000 8,420,000 -3,037,000 5,936,000 -7,966,000  -1,406,000 3,926,000 -4,699,000  -11,603,000 5,900,000 -1,120,000  1,464,000 580,000 -4,702,000  -855,000 2,435,000 -9,857,000  -3,527,000 2,116,000 -5,959,000  -4,379,000                                                   
          income taxes payable
        -696,000 1,020,000 368,000 4,723,000 5,122,000 8,385,000 8,243,000 4,216,000 5,431,000 -2,093,000 70,894,000 -4,762,000 -4,396,000 -3,927,000 -5,085,000 -5,956,000 -4,311,000 -3,895,000 -11,667,000 -4,961,000 -4,786,000 -4,535,000 -4,674,000 -4,574,000 -4,069,000 -5,101,000 -3,858,000 -3,027,000 -3,939,000 -4,932,000 -4,414,000 -4,642,000 -562,000      4,840,000 -2,963,000 -233,000 485,000 311,000 368,000 -86,000 6,262,000 -17,000 846,000 -4,828,000 -1,096,000 -164,000 166,000 378,000 -2,857,000      2,502,000 1,964,000 -185,000 -2,443,000 2,875,000 123,000 -1,000 46,000 -279,000 -1,523,000 -339,000 107,000 -20,000                          
          deferred revenue
        -5,971,000 6,160,000 4,855,000 -1,425,000 153,000 2,515,000 2,899,000 -727,000 -913,000 -265,000 2,417,000 -4,441,000 -2,759,000 355,000 1,554,000 889,000 -4,152,000 5,826,000 7,480,000 -1,033,000 3,223,000 -4,489,000 4,109,000 720,000 -1,826,000 2,121,000 3,122,000 -5,169,000 -3,571,000 6,875,000 -206,000 -2,624,000 -3,817,000 -2,641,000 -842,000 5,210,000 -1,120,000 -219,000 5,738,000 3,030,000 -1,236,000 1,433,000 -744,000 1,146,000 1,272,000                    -75,000 -21,000                           10,773,000 -1,283,000 -3,067,000   
          operating lease liabilities
        -1,577,000 -1,455,000 -1,500,000 -1,258,000 -1,340,000 -1,508,000 -919,000 -1,180,000 -1,749,000 -1,119,000 -1,240,000 -1,156,000 -1,689,000 -1,693,000 -1,926,000 -2,002,000 -1,298,000 -1,810,000 -1,777,000 -1,735,000 532,000 -1,520,000 -1,540,000 -587,000 -2,978,000 -2,351,000 -2,405,000 -2,242,000 -2,284,000                                                                     
          net cash from operating activities
        83,209,000 99,817,000 88,429,000 94,359,000 77,414,000 58,984,000 62,074,000 70,422,000 39,119,000 54,850,000 51,588,000 50,442,000 38,906,000 51,289,000 79,991,000 56,499,000 42,614,000 72,168,000 45,997,000 51,594,000 39,458,000 42,067,000 44,119,000 62,015,000 37,258,000 35,411,000 25,664,000 38,699,000 28,761,000 35,053,000 31,634,000 3,660,000 16,770,000 59,590,000 15,314,000 25,356,000 17,177,000 32,910,000 10,939,000 32,431,000 16,258,000 22,184,000 15,418,000 23,801,000 15,039,000 26,533,000 23,961,000 9,943,000 16,511,000 20,511,000 25,670,000 -10,151,000 15,312,000 2,243,000    35,564,000 19,992,000 -4,545,000 55,837,000 2,941,000 -1,058,000 177,498,000 -14,944,000 -7,386,000 -17,625,000 -637,000 -4,404,000 -7,079,000 -13,229,000 -13,762,000 -13,539,000 1,581,000 777,000 17,729,000 24,427,000 5,916,000 14,026,000 19,056,000 10,967,000 3,062,000 11,726,000 7,377,000 8,459,000 10,295,000 6,360,000 18,589,000 11,167,000 4,845,000 1,642,000 5,760,000 18,011,000 13,690,000 5,590,000 7,981,000 5,982,000 
          capital expenditures
        -11,635,000 -6,517,000 -5,946,000 -6,507,000 -7,872,000 -9,870,000 -11,330,000 -3,008,000 -7,967,000 -6,749,000 -7,738,000 -6,217,000 -4,750,000 -1,683,000 -2,260,000 -1,750,000 -3,517,000 -8,019,000 -1,950,000 -2,311,000 -1,378,000 -2,119,000 -664,000 -2,913,000 -2,562,000 -3,599,000 -1,688,000 -3,941,000 -1,962,000 -1,564,000 -1,918,000 -3,806,000 -1,193,000 -1,958,000 -1,599,000 -1,383,000 -1,632,000 -2,022,000 -1,095,000 -1,611,000 -1,300,000 -1,148,000 -3,145,000 -996,000 -633,000 -1,606,000 -3,703,000 -6,007,000    -6,478,000 -10,557,000 -2,009,000 -534,000 -394,000 -761,000 -802,000 -708,000 -1,674,000 -2,685,000 -3,828,000 -1,684,000 -3,300,000 -2,289,000 -7,528,000 -468,000 -2,216,000 -4,692,000 -1,001,000 -1,212,000 -3,169,000 -2,524,000 -1,421,000 -6,497,000 -3,676,000 -665,000 -1,224,000 -880,000 -1,067,000 -1,033,000 -402,000 -662,000 
          free cash flows
        71,574,000 93,300,000 82,483,000 87,852,000 69,542,000 58,984,000 52,204,000 59,092,000 36,111,000 54,850,000 43,621,000 43,693,000 31,168,000 51,289,000 73,774,000 51,749,000 40,931,000 72,168,000 43,737,000 49,844,000 35,941,000 42,067,000 36,100,000 62,015,000 35,308,000 33,100,000 24,286,000 36,580,000 28,097,000 32,140,000 29,072,000 61,000 15,082,000 55,649,000 13,352,000 23,792,000 15,259,000 29,104,000 9,746,000 30,473,000 14,659,000 20,801,000 13,786,000 21,779,000 13,944,000 24,922,000 22,661,000 8,795,000 13,366,000 19,515,000 25,037,000 -11,757,000 11,609,000 -3,764,000    35,564,000 19,992,000 -11,023,000 55,837,000 -7,616,000 -3,067,000 176,964,000 -15,338,000 -8,147,000 -18,427,000 -1,345,000 -6,078,000 -9,764,000 -17,057,000 -15,446,000 -13,539,000 1,581,000 -2,523,000 15,440,000 16,899,000 5,448,000 11,810,000 14,364,000 9,966,000 1,850,000 8,557,000 4,853,000 7,038,000 3,798,000 2,684,000 17,924,000 9,943,000 3,965,000 575,000 4,727,000 17,609,000 13,690,000 4,928,000 7,981,000 5,982,000 
          cash flows from investing activities:
                                                                                                         
          purchases of property and equipment
        -11,635,000 -6,517,000 -5,946,000 -6,507,000 -7,872,000                                                         -10,557,000 -2,009,000 -534,000 -394,000 -761,000 -802,000 -708,000 -1,674,000 -2,685,000 -3,828,000 -1,684,000     -7,528,000 -468,000 -2,216,000 -4,692,000 -1,001,000 -1,212,000 -3,169,000 -2,524,000 -1,421,000 -6,497,000 -3,676,000 -665,000 -1,224,000 -880,000 -1,067,000 -1,033,000 -402,000  -662,000   
          purchases of marketable securities
        -255,812,000 -168,123,000 -194,335,000 -212,668,000 -91,168,000 -137,216,000 -53,994,000 -111,617,000 -112,547,000 -135,866,000 -161,048,000 -91,680,000 -45,561,000 -69,980,000 -24,308,000 -17,228,000 -39,433,000 -148,874,000 -85,291,000 -174,027,000 -159,755,000 -243,894,000 -167,542,000 -317,655,000 -169,866,000 -193,583,000 -186,144,000 -146,105,000 -131,601,000 -89,293,000 -113,617,000 -79,207,000       -32,949,000 -27,197,000 -50,886,000 -46,779,000 -40,070,000 -34,141,000 -132,020,000 -34,050,000 -23,958,000 -41,100,000 -23,797,000 -36,699,000 -33,154,000      -94,160,000 -109,657,000 511,325,000 -693,917,000 -136,519,000 -59,821,000 -26,388,000 -13,500,000 -83,508,000 -58,394,000 -58,095,000 -149,315,000 -97,164,000 -236,201,000 -50,793,000 -225,393,000 -152,033,000 -141,425,000 -42,348,000 -27,415,000 -4,000,000 -73,805,000 -25,500,000 -163,025,000 -85,370,000 8,225,000 -6,000,000 40,813,000 -162,494,000 -54,185,000 -161,952,000 -101,846,000 -65,784,000 -105,133,000 -67,993,000 -62,615,000   
          maturities of marketable securities
        182,139,000 182,971,000 108,427,000 87,953,000 90,675,000 73,968,000 46,105,000 60,039,000 100,717,000 48,387,000 98,312,000 11,021,000 18,134,000 6,284,000 8,034,000 543,000 44,781,000 38,395,000 36,835,000 154,449,000 106,475,000 289,863,000 120,415,000 192,392,000 215,164,000 129,533,000 161,470,000 85,610,000 130,772,000 41,375,000 49,881,000 117,598,000 14,225,000 5,000,000 27,048,000 24,335,000 3,775,000 27,386,000 54,585,000 31,325,000 11,000,000 30,326,000 40,070,000 32,099,000 35,208,000 25,378,000 26,050,000 22,300,000 33,050,000 31,000,000 33,250,000 33,600,000 23,650,000 42,910,000 82,926,000 46,319,000 145,183,000 62,820,000 78,158,000 -518,151,000 697,070,000 39,562,000 19,493,000 57,269,000 73,672,000 90,493,000     91,034,000 229,757,000 259,252,000 127,050,000 65,184,000 51,634,000 24,879,000 24,494,000 92,648,000 93,906,000 15,017,000 20,571,000 -5,811,000 4,620,000 -55,005,000 133,008,000 73,146,000 123,107,000 123,688,000 63,490,000 92,850,000 53,453,000 58,598,000 59,341,000 105,634,000 
          net cash from investing activities
        -85,308,000 8,331,000 -91,854,000 -131,222,000 -8,365,000 -69,737,000 -17,759,000 -40,598,000 71,370,000 -88,265,000 65,851,000 -24,277,000 -10,705,000 -65,515,000 50,105,000 -37,367,000 204,756,000 -116,744,000 -95,332,000 144,886,000 -48,465,000 55,680,000 -54,694,000 -133,597,000 42,217,000 -30,565,000 -45,802,000 -63,614,000 -1,493,000 -54,181,000 -66,298,000 119,103,000 -66,660,000 -106,433,000 -2,071,000 7,886,000 25,147,000 20,642,000 -113,418,000 15,105,000 -27,537,000 2,662,000 -1,237,000 -1,410,000 1,076,000 1,074,000 -233,000 -88,851,000 -9,895,000 8,215,000 -8,683,000 5,222,000 -7,027,000 -5,561,000 -11,799,000 -17,293,000 37,236,000   -37,818,000 -61,955,000 -20,469,000 -1,588,000 -97,491,000 -67,672,000 28,120,000 59,370,000 4,727,000 42,432,000 -12,423,000 8,093,000 44,629,000 -148,082,000 177,351,000 29,898,000 -27,278,000 -85,480,000 7,761,000 -5,356,000 14,783,000 15,337,000 67,202,000 -153,817,000 -67,332,000 727,000 -18,681,000 -17,123,000 -25,803,000 4,513,000 -39,688,000 30,949,000 -2,061,000 -12,095,000 -15,629,000 -2,422,000   
          cash flows from financing activities:
                                                                                                         
          payments of taxes related to net share settlement of equity awards
        -38,377,000                                                                                                 
          payments under installment payment arrangements
        -5,317,000 -2,126,000 -2,477,000 -3,887,000 -3,799,000 -3,651,000 -3,651,000 -5,017,000 -4,031,000 -4,869,000 -3,392,000 -4,704,000 -3,227,000 -3,906,000 -3,129,000 -4,123,000 -3,220,000 -2,646,000 -2,658,000 -4,049,000 -3,119,000  -2,552,000                                                                           
          repurchase and retirement of common stock
        -2,569,000  -3,653,000 -2,157,000  -50,000,000 -12,500,000 -50,812,000                                                      -68,812,000 -26,473,000       -24,921,000                          
          net cash from financing activities
        -46,263,000 -4,544,000 -5,120,000 -7,987,000 -36,763,000 -2,661,000 -55,274,000 -17,705,000 -92,347,000 -4,244,000 -107,083,000 -4,086,000 -54,210,000 -2,513,000 -158,536,000 -25,979,000 -175,907,000 649,000 -3,322,000 -101,280,000 -10,256,000 -51,332,000 -3,471,000 -619,000 -5,764,000 -2,051,000 -1,715,000 3,638,000 -170,000 1,038,000 -78,847,000 4,201,000 -54,076,000 89,839,000 1,516,000 -44,374,000 -536,000 -6,963,000 4,173,000 4,411,000 4,144,000 -97,518,000 895,000 7,519,000 1,326,000 930,000 2,387,000 -168,097,000 1,264,000 1,977,000 135,868,000 2,990,000 -54,000 96,000 529,000 973,000 60,000  4,314,000 9,335,000 3,183,000 -98,811,000 -63,739,000 31,841,000 4,398,000 28,571,000 150,403,000 5,507,000 -28,573,000 -5,504,000 12,152,000 -25,542,000 11,831,000 3,151,000 -400,000 -7,001,000 -400,000 85,000 14,129,000 21,990,000 -40,010,000 -84,024,000 4,035,000 219,718,000 10,593,000 -6,112,000 -9,325,000 28,278,000 14,413,000 -12,720,000 5,288,000 -10,870,000 1,253,000 -7,568,000 -6,622,000   
          effect of exchange rate changes on cash and cash equivalents
        -140,000 22,000 -14,000 424,000 124,000  361,000 -155,000 -295,000  -589,000 235,000 191,000  -1,465,000 -830,000 -224,000 -51,000 -194,000 -24,000 -144,000 263,000 262,000 33,000 -452,000    -192,000 -239,000 -1,041,000 483,000 503,000 379,000 884,000 373,000 -774,000 -226,000           32,000                                                
          net increase in cash and cash equivalents
        -48,502,000 103,626,000 -8,559,000 -44,426,000 32,410,000  -10,598,000 11,964,000 17,847,000                    27,098,000 -18,282,000 -113,750,000 125,923,000 -103,483,000 43,499,000 15,138,000 -10,248,000 42,161,000  -98,532,000 51,382,000 -7,135,000 -72,789,000 15,076,000 29,910,000 17,441,000 28,440,000 26,115,000 -247,005,000 7,880,000 30,735,000 152,685,000 -1,939,000 8,231,000    26,304,000   -33,028,000 -2,935,000 -116,339,000 -66,385,000 111,848,000 -78,218,000 49,305,000 192,148,000 9,597,000 9,455,000 -25,006,000 6,931,000 5,470,000 -149,867,000 182,197,000 30,285,000 -16,528,000 -61,467,000 13,751,000 22,797,000 55,832,000 -13,753,000 -13,785,000 -138,092,000 159,711,000 19,867,000 -14,524,000 -20,117,000 21,079,000 30,133,000 -47,485,000 37,882,000 -7,181,000 7,202,000     
          cash and cash equivalents at beginning of period
        182,826,000  99,775,000  94,767,000                    116,252,000  225,844,000  135,294,000  143,764,000  154,126,000  338,696,000  148,984,000  162,244,000 215,262,000  289,073,000  116,241,000 119,391,000 73,304,000 42,391,000 48,310,000 42,005,000 28,656,000 21,454,000  44,195,000 
          cash and cash equivalents at end of period
        134,324,000  -8,559,000 -44,426,000 132,185,000  -10,598,000 11,964,000 112,614,000                    143,350,000    122,361,000  15,138,000 -10,248,000 177,455,000  -98,532,000 51,382,000 136,629,000  15,076,000 29,910,000 171,567,000  26,115,000 -247,005,000 346,576,000  152,685,000 -1,939,000 157,215,000  -378,000 -35,964,000 188,548,000 -18,960,000 -2,430,000 182,234,000  -116,339,000 -66,385,000 400,921,000  49,305,000 192,148,000 125,838,000 9,455,000 -25,006,000 6,931,000 124,861,000 -149,867,000 182,197,000 30,285,000 56,776,000 -61,467,000 13,751,000 22,797,000 98,223,000 -13,753,000 -13,785,000 -138,092,000 208,021,000 19,867,000 -14,524,000 -20,117,000 63,084,000 30,133,000 -47,485,000 37,882,000 21,475,000 28,656,000  -3,362,000 4,879,000 29,465,000 
          non-cash investing and financing activities:
                                                                                                         
          property and equipment received and accrued in accounts payable and other liabilities
        4,481,000  -25,270,000 17,267,000 8,716,000                                                                                             
          loss on fair value adjustment of derivatives
                 240,000 2,302,000 8,283,000                                                                                 
          gain on divestiture
                 59,000                                                                                        
          gain on sale of non-marketable equity security
                                                                                                         
          impairment of assets
                                                                                                      
          change in fair value of earn-out liability
             -4,544,000 -1,200,000 700,000 1,100,000 -5,666,000 6,900,000 6,900,000 5,000,000 2,411,000 -5,500,000 1,200,000     -1,800,000                                                                         
          change in operating assets and liabilities, net of effects of disposition:
                                                                                                         
          prepaid expenses and other assets
                         753,000 1,222,000 1,099,000 3,589,000 -146,000 339,000 -5,000 1,854,000 -468,000 -104,000 5,789,000 -1,153,000 -355,000 -1,114,000 -379,000 -2,236,000  1,708,000 451,000 4,665,000  -2,031,000 542,000 -2,398,000  -1,630,000 -670,000 -1,436,000  -431,000 -1,100,000 -183,000  2,735,000 198,000 2,965,000  1,636,000   3,065,000                                        
          proceeds from sale of marketable securities
                         52,499,000 166,214,000 8,332,000 18,640,000 452,000   4,758,000          6,000,000   5,246,000 16,486,000 20,048,000 6,600,000 7,297,000              147,000                                     
          proceeds from sale of non-marketable equity security
             22,796,000                                                                                         
          proceeds from divestiture
                                                                                                        
          proceeds received from issuance of common stock under employee stock plans
               3,131,000 220,000 2,497,000 1,369,000 4,313,000 771,000 2,361,000 45,000 3,409,000 321,000 3,955,000 816,000 3,266,000 920,000 3,404,000 203,000 3,875,000 4,005,000 3,356,000 1,529,000 5,363,000 4,856,000 2,136,000 3,416,000 4,792,000 1,058,000 5,034,000 2,447,000 6,098,000 2,247,000 3,159,000 4,018,000 4,460,000 3,799,000 3,702,000 1,028,000 7,629,000 1,424,000 2,743,000 2,481,000 4,503,000 1,352,000 3,781,000 1,556,000   2,375,000 558,000 1,107,000 63,000 1,529,000 4,690,000 3,263,000 5,615,000 1,412,000 5,823,000 3,664,000 4,398,000 6,634,000 4,153,000 5,507,000   12,152,000 629,000                          
          payments for settlement and repurchase of convertible senior notes
                 -10,381,000                                                                                     
          payments for settlement of warrants
                 -10,697,000                                                                                     
          payment of deferred purchase consideration from acquisition
                                                                                                     
          repurchase and retirement of common stock, including prepayment under accelerated share repurchase program in 2024 and 2023
                                                                                                         
          cash, cash equivalents and restricted cash at beginning of year
                                                                                                         
          cash and cash equivalents
                 -37,190,000 9,767,000 22,314,000 99,876,000 -16,225,000 -29,901,000 -7,669,000 179,129,000 -43,980,000 -52,860,000 95,177,000 109,554,000 46,671,000 -13,800,000   10,338,000 -22,348,000                                                                       
          proceeds from sales of marketable securities
              22,310,000 63,412,000  30,207,000 63,131,000 24,460,000  72,596,000 204,091,000                                                                                 
          proceeds from issuance of common stock under employee stock plans
                                                                           4,411,000                             
          payments of taxes on restricted stock units
          -2,643,000 -4,190,000 -30,807,000 -1,028,000 -1,719,000 -869,000 -37,724,000 -1,672,000 -4,735,000 -1,245,000 -30,676,000 -959,000 -1,025,000 -608,000 -15,821,000 -660,000 -1,467,000 -429,000 -8,057,000 -618,000 -1,122,000 -445,000 -7,218,000 -1,358,000 -1,394,000 -485,000 -3,786,000 -802,000 -769,000 -302,000 -4,893,000 -1,574,000 -701,000 -231,000 -2,593,000                                                             
          operating lease right-of-use assets obtained in exchange for operating lease obligations
             1,468,000 297,000 1,372,000 1,662,000 1,417,000    268,000 362,000                                                                                   
          non-cash operating, investing and financing activities:
                                                                                                         
          non-cash interest expense and amortization of convertible debt issuance costs
                     10,000 46,000 46,000 105,000 1,954,000 1,927,000 1,901,000 1,874,000 1,849,000 1,823,000 1,798,000 1,773,000 1,750,000 1,725,000 1,701,000 1,678,000 1,656,000 2,191,000 2,716,000 2,680,000 2,254,000 1,801,000 1,774,000 1,749,000 1,724,000 1,699,000 1,675,000 1,651,000 1,628,000 1,604,000 1,581,000 1,559,000 1,537,000 1,515,000 5,469,000 6,242,000 5,927,000 5,135,000 4,145,000 4,089,000 3,839,000 3,789,000 3,557,000 3,510,000 3,254,000 3,056,000 3,016,000 2,834,000 2,797,000 1,584,000 3,860,000 5,666,000 5,513,000 2,775,000 2,670,000                              
          loss on extinguishment of debt
                     17,129,000 66,497,000                                                                                 
          gain on sale of equity security
                                                                                                         
          change in operating assets and liabilities, net of effects of acquisition/disposition:
                                                                                                         
          acquisition of intangible assets
                     -3,000,000                                -156,000 -625,000 -1,875,000       -2,260,000 -3,250,000   -950,000 -1,550,000 -300,000        -1,000,000                  
          proceeds from sale of equity security
                                                                                                       
          acquisition of businesses, net of cash acquired
                                                                                                        
          proceeds from retirement of convertible senior note hedges
                     19,314,000 72,415,000                                                                                 
          repurchase and retirement of common stock, including prepayment under accelerated share repurchase program
                 -200,000    -9,000    -13,000                                                                               
          effect of exchange rate changes on cash, cash equivalents and restricted cash
                                                                                                         
          net increase in cash, cash equivalents and restricted cash
                 -37,190,000 9,767,000 22,314,000 -25,818,000 -16,227,000 -29,905,000 -7,677,000 71,239,000 -43,978,000 -52,851,000 95,176,000 -19,407,000   -72,168,000 73,259,000                                                                         
          cash, cash equivalents and restricted cash at end of year
                                                                                                         
          supplemental disclosure of cash flow information:
                                                                                                         
          cash paid during the period for:
                                                                                                         
          interest
                                                                                                         
          income taxes, net of refunds
                                                                                                         
          issuance of common stock in connection with the payments of earn-out related to the plda group acquisition
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as shown in the consolidated statement of cash flows:
                                                                                                         
          restricted cash
                     -2,000 -4,000 -8,000 374,000 2,000 9,000 -1,000 363,000 7,000 16,000   2,000 -2,000                                                                       
          cash, cash equivalents and restricted cash
                 -37,190,000 9,767,000 22,314,000 99,876,000 -16,227,000 -29,905,000 -7,677,000 179,503,000 -43,978,000 -52,851,000 95,176,000 109,917,000 46,678,000 -13,784,000   10,340,000 -22,350,000                                                                       
          purchases of property, plant, and equipment
              -9,870,000 -11,330,000 -3,008,000  -7,967,000 -6,749,000 -7,738,000  -6,217,000 -4,750,000 -1,683,000  -2,260,000 -1,750,000 -3,517,000  -8,019,000                                                                           
          property, plant and equipment received and accrued in accounts payable and other liabilities
              -5,355,000 3,169,000 3,696,000 -4,245,000 -7,243,000 -4,278,000 37,534,000 6,495,000 -5,356,000 23,658,000 14,238,000 1,126,000 1,089,000 -4,490,000 15,210,000  2,632,000 -6,836,000 33,190,000  -1,765,000 19,934,000 6,828,000    286,000  1,118,000 24,000 152,000  1,098,000 -584,000 830,000  -135,000 429,000 248,000  596,000                                                   
          issuance of common stock in connection with the payment of year 1 earn-out related to the plda acquisition
                                                                                                         
          issuance of common stock in connection with the payment of year 1 earn-out related to the plda group acquisition
                  5,022,000                                                                                     
          purchases of property, plant and equipment
                                -1,950,000 -2,311,000 -1,378,000 -2,119,000 -664,000 -2,913,000 -2,562,000 -3,599,000 -1,688,000 -3,941,000 -1,962,000 -1,564,000 -1,918,000 -3,806,000 -1,193,000 -1,958,000 -1,599,000 -1,383,000 -1,632,000 -2,022,000 -1,095,000 -1,611,000 -1,300,000 -1,148,000 -3,145,000 -996,000 -633,000 -1,606,000 -3,703,000 -6,007,000      -6,478,000                                      
          issuance of common stock in connection with the payments of year 1 and year 2 earn-out related to the plda group acquisition
                                                                                                         
          common stock issued pursuant to acquisition
                                                                                                         
          gain on fair value of equity security
                                                                                                         
          acquisition of business, net of cash acquired
                                              -80,523,000                                                         
          cash, cash equivalents and restricted cash at beginning of period
                  125,694,000  108,264,000  129,324,000  102,518,000                                                                        
          cash, cash equivalents and restricted cash at end of period
                  9,767,000 22,314,000 99,876,000  -29,905,000 -7,677,000 179,503,000  -52,851,000 95,176,000 109,917,000  -13,784,000 -72,168,000 175,777,000  -22,350,000                                                                       
          reconciliation of the cash, cash equivalents and restricted cash balances as of september 30, 2023 and december 31, 2022:
                                                                                                         
          change in operating assets and liabilities, net of effects of acquisition:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of june 30, 2023 and december 31, 2022:
                                                                                                         
          amortization of convertible debt issuance costs
                    3,000                                                                                     
          loss on equity investment
                    362,000 414,000 240,000 298,000 324,000 354,000 264,000 253,000 200,000 226,000 203,000 106,000 212,000 272,000 249,000 94,000 81,000                                                                     
          realized loss from sale of marketable securities
                     450,000 688,000                                                                                 
          gain on disposal of property, plant and equipment
                     9,000 -1,000 -3,000 -6,000                                                                                 
          reconciliation of the cash, cash equivalents and restricted cash balances as of march 31, 2023 and december 31, 2022:
                                                                                                         
          settlement of working capital adjustment from disposal of business
                             -1,131,000                                                                         
          repurchase of convertible senior notes
                     -58,949,000 -24,657,000 -174,454,000                                                                                 
          payments for retirement of warrants
                     -14,380,000 -55,148,000                                                                                 
          reconciliation of the cash, cash equivalents and restricted cash balances as shown on the consolidated statement of cash flows:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of september 30, 2022 and december 31, 2021:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of june 30, 2022 and december 31, 2021:
                                                                                                         
          net loss
                        -66,218,000    -2,613,000 -12,066,000 -12,779,000 -10,781,000 -7,983,000 -9,532,000 -17,331,000 -36,980,000 -26,576,000                     -9,777,000 -5,725,000 -7,844,000 -10,402,000  -58,098,000 -32,216,000 -27,890,000        -23,293,000 -27,496,000 -23,971,000 -17,426,000 -10,681,000 -27,944,000 -144,664,000 -12,634,000                          
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of march 31, 2022 and december 31, 2021:
                                                                                                         
          loss on divestiture
                                                                                                         
          loss on disposal of property, plant and equipment
                                                                                                         
          change in operating assets and liabilities, net of effects of acquisitions and divestiture:
                                                                                                         
          proceeds from divestiture, net of cash disposed
                                                                                                         
          proceeds from sale of property and property, plant and equipment
                                                                                                         
          investment in privately-held companies
                                                                                                         
          change in operating assets and liabilities, net of effects of acquisitions:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of september 30, 2021 and december 31, 2020:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of june 30, 2021 and december 31, 2020:
                                                                                                         
          reconciliation of the cash, cash equivalents and restricted cash balances as of march 31, 2021 and december 31, 2020:
                                                                                                         
          non-cash restructuring
                                     670,000                 653,000                                             
          gain from sale of marketable equity security
                                                                                                       
          gain from sale of assets held for sale
                                                                                                       
          loss from disposal of property, plant and equipment
                                 16,000 -12,000 55,000 98,000  471,000    -11,000                                                               
          proceeds from sale of assets held for sale
                                                                                                       
          repayment of 1.125% convertible notes
                                                                                                         
          payments under installment payment arrangement
                                -2,551,000 -4,049,000 -1,850,000 -1,240,000 -1,240,000                 -1,717,000 -28,000 -28,000 -1,745,000 -28,000 -28,000 -28,000 -1,774,000      -250,000 -2,724,000 -400,000 -750,000 -400,000     -1,250,000                          
          principal payments against financing lease obligation
                                                                                                         
          property, plant and equipment received and accrued in accounts payable and other accrued liabilities
                                                        280,000 5,657,000 140,000 -54,000 166,000 -977,000 -1,076,000 -131,000 3,893,000   2,362,000                                      
          impairment of assets held for sale
                                  -1,853,000                                                                       
          loss from disposal of property, plant, and equipment
                              -85,000                                                                           
          investment in privately-held company
                                                                                                       
          proceeds from sale of property, plant and equipment
                                      10,000  11,000 17,000                                                             
          less: net decrease in cash classified within assets held for sale
                                                                                                        
          net decrease in cash, cash equivalents and restricted cash
                                                                                                         
          non-cash investing and financing activities during the period:
                                                                                                         
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of september 30, 2020 and december 31, 2019:
                                                                                                         
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of june 30, 2020 and december 31, 2019:
                                                                                                         
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of march 31, 2020 and december 31, 2019:
                                                                                                         
          deferred tax provision
                                                                      -20,000 -29,000 -202,000 -85,000 -26,000 95,000 890,000 -25,000                            
          accrued salaries and benefits and other accrued liabilities
                                                        -6,682,000 1,673,000 2,029,000 -15,025,000 4,209,000 -2,167,000   1,502,000   -24,502,000 7,712,000 7,506,000 3,584,000 9,248,000 -3,745,000 3,012,000 -1,749,000 -1,024,000 -397,000 1,302,000 -3,546,000 581,000                          
          acquisitions of businesses, net of cash acquired
                                                                                                         
          proceeds from issuance of 1.375% convertible notes
                                                                                                         
          issuance costs related to issuance of 1.375% convertible notes
                                                                                                         
          payments for convertible note hedges
                                                                                                         
          proceeds from issuance of warrants
                                                                                                         
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of december 31, 2019, december 31, 2018 and december 31, 2017:
                                                                                                         
          adjustments to reconcile net loss to net cash from operating activities, net of impact of acquisition:
                                                                                                         
          principal payments against lease financing obligation
                                      -287,000 -258,000 -241,000  -230,000 -205,000 -190,000  -181,000 -155,000 -140,000  -133,000 -110,000 -98,000  -94,000 -72,000 -60,000  -57,000 -36,000 -26,000       -417,000                                      
          repayment of 1.125% convertible notes due 2018
                                                                                                         
          repurchase and retirement of common stock, including prepayment under acceleratedshare repurchase program
                                      -31,000 -50,000,000                                                                
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of september 30, 2019 and december 31, 2018:
                                                                                                         
          the following table provides a reconciliation of the cash, cash equivalents and restricted cash balances as of june 30, 2019 and december 31, 2018:
                                                                                                         
          impairment of in-process research and development intangible asset
                                                                                                         
          change in contingent consideration liability
                                                                                                         
          excess tax benefits from stock-based compensation
                                             -269,000 -336,000                                                           
          loss from sale of property and property, plant and equipment
                                                                                                         
          effect of exchange rate on assumed cash liability from acquisition
                                             -573,000 -361,000                                                           
          payment of additional purchase consideration from acquisition
                                                                                                         
          cash and cash equivalents at beginning of year
                                                                                                         
          cash and cash equivalents at end of year
                                                                                                         
          non-cash investing activities during the period:
                                                                                                         
          unrealized gain on marketable equity security
                                        -155,000                                                                 
          gain from disposal of property, plant and equipment
                                        -45,000                                                                 
          loss from sale of intellectual property and property, plant and equipment
                                                                                                         
          prepaids and other assets
                                                                4,200,000   -343,000 2,963,000 3,532,000 -1,878,000 26,000 -780,000 1,424,000 -825,000 1,185,000 187,000 1,154,000 2,226,000 -3,472,000                          
          proceeds from sale of intellectual property and property, plant and equipment
                                                 423,000 106,000                                                       
          re-measurement of investment upon initial public offering
                                                                                                         
          change in operating assets and liabilities, net of impact of acquisitions:
                                                                                                         
          non-cash financing activities during the period:
                                                                                                         
          additional purchase consideration from acquisition
                                              -697,000                                                           
          gain from sale of property, plant and equipment
                                            -13,000                                                             
          impairment of investment in non-marketable equity security
                                                                                                      
          gain from sale of intellectual property and property, plant and equipment
                                              8,000 -37,000 -413,000 -106,000                                                       
          repayment of senior convertible notes
                                                                                                         
          net decrease in cash and cash equivalents
                                                             -3,222,000                                            
          incremental tax benefits from stock-based compensation
                                                -485,000                                                         
          assumed cash liability from acquisition
                                                12,100,000                                                         
          impairment of goodwill and long-lived assets
                                                         9,681,000                                               
          proceeds from issuance of convertible senior notes
                                                                       22,500,000                                
          issuance costs related to issuance of convertible senior notes
                                                                                                         
          repayment of convertible senior notes
                                                                   -136,950,000                                  
          gain from sale of intellectual property
                                                    -2,267,000 -3,359,000 -170,000                                               
          proceeds from sale of intellectual property
                                                    2,280,000  1,250,000 1,250,000                                                
          accrued litigation expenses
                                                         -522,000 -653,000 -8,583,000 434,000 -213,000   306,000 2,195,000 2,891,000 684,000 170,000 858,000 -1,523,000 -592,000 -1,073,000 -2,372,000 1,297,000 -6,970,000 629,000 1,893,000 -12,354,000 -2,137,000                          
          non-cash obligation for property, plant and equipment
                                                             504,000 1,513,000 495,000                                         
          issuance costs related to the issuance of convertible senior notes
                                                                        -563,000                                
          non-cash acquisition of patents
                                                                                                         
          payment to redeem contingently redeemable common stock pursuant to the settlement agreement with samsung
                                                                                                         
          proceeds from landlord for tenant improvements
                                                                 1,803,000 258,000 6,739,000                                      
          common stock, net, issued pursuant to acquisition
                                                                                                         
          deferred tax benefit
                                                          -270,000 612,000 263,000       -46,000            -6,113,000                          
          gain on sale of assets
                                                            -1,282,000                                             
          proceeds from sale of assets
                                                            2,000,000                                             
          intangible assets acquired under installment payment arrangement
                                                                1,050,000    169,000 -400,000 -800,000 1,531,000                                  
          remaining purchase consideration for acquisition of business
                                                                3,881,000                                         
          loss on sale of marketable security
                                                                    4,000 11,000                                    
          proceeds received from issuance of contingently redeemable common stock and common stock pursuant to the settlement agreement with samsung
                                                                    192,000,000                                  
          repurchase and retirement of common stock, including prepayment under share purchase contract
                                                                                                         
          proceeds from sale of marketable security
                                                                                                        
          adjustments to reconcile net loss to net cash used in operating activities:
                                                                                                         
          change in assets and liabilities, net of effects of acquisition:
                                                                                                         
          non-cash investing activities and financing activities:
                                                                                                         
          payment to redeem contingently redeemable common stock
                                                                                                         
          prepayment under share purchase contract
                                                                                                         
          acquisitions, net of cash acquired
                                                                                                         
          change in assets and liabilities:
                                                                                                         
          adjustments to reconcile net income to net cash provided by (used in) operating activities:
                                                                                                         
          impairment of intangible assets
                                                                                                         
          restructuring costs
                                                                                                        
          gain on repurchase of convertible notes
                                                                                        -5,401,000                 
          impairment of investments
                                                                        164,000                              
          recoveries of restatement and related legal activities
                                                                                                         
          acquisition of businesses
                                                                                                         
          investment in non-marketable security
                                                                                                         
          effect of exchange rates on cash and cash equivalents
                                                                            -85,000 145,000 -77,000 114,000 10,000 22,000 -14,000 -11,000 -2,000 3,000 -47,000 -25,000 -36,000 -52,000 88,000 -26,000 -29,000 15,000 40,000 78,000 3,000 -10,000 33,000 -21,000 92,000   
          non-cash investing activities:
                                                                                                         
          non-cash financing activities
                                                                                                         
          property, plant and equipment received and accrued in other long-term liabilities
                                                                                                         
          impairment of investment
                                                                                                         
          increase in restricted cash
                                                                     -58,000 -3,000 -22,000    -5,000   18,349,000 -18,475,000  68,000 -6,000 -6,000                      
          acquisition of business
                                                                                      -20,000                
          repurchase of common stock
                                                                                       -20,956,000 -13,166,000 -75,000,000 -7,626,000   -2,000 -15,124,000 -14,703,000  -7,625,000 -7,926,000   
          increase in non-cash obligation for construction in progress
                                                                     800,000                                  
          fixed assets acquired under installment payment arrangement in a business acquisition
                                                                                                        
          loss on disposal of property and equipment
                                                                            61,000 5,000       243,000                    
          decrease (increase) in restricted cash
                                                                                    -6,000                     
          proceeds from sale of property and equipment
                                                                                                         
          repurchase of convertible notes
                                                                                        -28,875,000                 
          cash paid for interest
                                                                                                         
          cash paid for income taxes
                                                                                                         
          cash received from income tax refunds
                                                                                                         
          (decrease) increase in restricted cash
                                                                                                         
          investment in non-marketable securities
                                                                                                         
          loss on disposal of property plant and equipment
                                                                                                         
          increases in deferred revenue
                                                                           650,000 -419,000 -3,054,000 2,179,000 3,078,000 -16,853,000 6,865,000 6,698,000 5,554,000 5,733,000 6,335,000 4,531,000 5,627,000 3,475,000 6,738,000 3,693,000 3,478,000 1,872,000 5,697,000 1,097,000 5,450,000 13,122,000 3,088,000        
          decreases in deferred revenue
                                                                           -692,000 -66,000 2,892,000 -3,454,000 -2,035,000 14,080,000 -6,388,000 -8,354,000 -6,403,000 -7,504,000 -3,928,000 -6,963,000 -5,564,000 -7,053,000 -8,535,000 -7,789,000 -8,540,000 -7,987,000 -10,213,000 -7,266,000 -7,029,000 -6,553,000 -5,955,000        
          property and equipment received and accrued in accounts payable and other accrued liabilities
                                                                           173,000 540,000 -2,278,000 -2,471,000 4,838,000                          
          proceeds receivable from issuance of common stock under employee stock plans
                                                                              -4,209,000 4,237,000                          
          adjustments to reconcile net loss to net cash from (used in) operating activities:
                                                                                                         
          amortization of intangible assets and convertible note issuance costs
                                                                                                         
          impairment of intangible asset
                                                                                                        
          recovery of restatement and related legal activities
                                                                                                         
          write-off of cost-based investment
                                                                                                         
          accounts receivable and unbilled receivables
                                                                            927,000 -246,000 5,212,000 -5,476,000 1,261,000 224,000 -2,266,000 1,455,000 -1,154,000 1,218,000                    
          decrease in restricted cash
                                                                            606,000                             
          purchases of leasehold improvements
                                                                                    -1,705,000 -1,045,000                    
          property and equipment acquired under installment payment arrangement
                                                                                                       
          taxes paid
                                                                                                    1,781,000 -758,000 1,325,000 1,231,000 1,305,000 
          taxes refunded
                                                                                                         
          change in operating assets and liabilities, net of effect of business acquisitions:
                                                                                                         
          maturities of or proceeds from the sale of marketable securities
                                                                             47,183,000 142,887,000 162,252,000                          
          cash paid for acquisition of business
                                                                                 -484,000                        
          repurchase and retirement of company common stock
                                                                                                         
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                                         
          amortization of intangible assets and note issuance costs
                                                                                1,323,000 1,323,000 1,320,000 1,320,000 3,897,000 1,513,000   1,346,000                 
          tax benefit from equity incentive plans
                                                                                                         
          net proceeds from issuance of common stock under employee stock plans
                                                                                                         
          net proceeds from issuance of convertible notes
                                                                                                        
          loss on disposal of assets
                                                                                                         
          tax shortfall from equity incentive plans
                                                                                                         
          prepaids, deferred taxes and other assets
                                                                                 -3,393,000 -1,998,000 -7,407,000 5,504,000 1,533,000 -1,487,000 -13,490,000 5,194,000 9,505,000 480,000 883,000 54,562,000 -6,295,000 -388,000 -16,922,000 -10,667,000 -324,000 -5,896,000 -1,701,000 1,415,000 5,180,000 500,000 1,847,000 2,975,000 
          accounts and income taxes payable, accrued salaries and benefits, and other accrued liabilities
                                                                                                         
          purchases of property and equipment and leasehold improvements
                                                                                                         
          purchase of intangible assets
                                                                                           -15,000             
          cash flows from financing activies:
                                                                                                         
          payments under installment arrangement
                                                                                 3,151,000 -400,000 -7,001,000  -400,000                  
          net proceeds from issuance of common stock under equity incentive plans
                                                                                                         
          accounts and taxes payable, accrued salaries and benefits and other accrued liabilities
                                                                                  -4,964,000 14,565,000 6,606,000 8,481,000 10,198,000 6,476,000 219,000 -5,396,000 1,332,000 4,227,000     716,000 -1,173,000 -2,250,000 3,123,000      
          purchases of property, equipment and leasehold improvements
                                                                                  -3,300,000 -2,289,000                      
          non-cash investing activity:
                                                                                                         
          increase in goodwill due to earn-out on gda acquisition
                                                                                  -655,000 1,139,000                      
          trade-in proceeds on disposition of fixed assets
                                                                                                         
          tax benefit (shortfall) from equity incentive plans
                                                                                    -3,780,000                    
          gain on sale of investment
                                                                                            -432,000 -3,166,000          
          proceeds from sale of investment
                                                                                            732,000 4,866,000          
          net proceeds from issuance of common stock under stock options and employee stock purchase plan
                                                                                    85,000                    
          adjustments to reconcile net income to net cash from operating
                                                                                                         
          repurchase and retirement of common stcok
                                                                                                         
          net proceeds from the issuance of convertible notes
                                                                                                         
          non-cash disclosure:
                                                                                                         
          amortization of intangible assets and debt issuance costs
                                                                                       1,492,000   1,470,000 1,163,000              
          tax benefit of stock option exercises
                                                                                       12,362,000 786,000 405,000 1,627,000 774,000 10,768,000 6,820,000 1,628,000 20,247,000  1,838,000 2,995,000 2,151,000      
          increase in restricted investments
                                                                                       -19,000    -9,000    -518,000    -334,000      
          net proceeds from issuance of common stock
                                                                                       43,346,000    1,968,000 10,593,000 1,514,000 4,702,000 28,278,000 14,415,000 2,404,000 5,288,000 3,833,000 1,253,000  1,304,000 594,000 1,568,000 
          net proceeds from the issuance of convertible debt
                                                                                                         
          non-cash disclosure
                                                                                                         
          property and equipment acquired under installment payment plan
                                                                                       400,000                  
          decrease in valuation allowance related to investments
                                                                                                   -1,231,000      
          decrease in restricted investments
                                                                                        -5,000 28,000   -251,000 265,000   -10,000       -244,000 1,596,000 
          purchase of investment
                                                                                                -400,000      
          intellectual property rights received on disposition of investment
                                                                                                500,000      
          gain on sale of investments
                                                                                                         
          amortization of deferred stock-based compensation
                                                                                         267,000 1,281,000 1,141,000              
          net proceeds from issuance of common stock under stock option plan and stock purchase plan
                                                                                         89,000                
          net proceeds from issuance of convertible note
                                                                                                         
          net proceeds from issuance of convertible debt
                                                                                           292,750,000              
          increase in valuation allowance related to investments
                                                                                                -545,000       
          amortization of deferred compensation
                                                                                                     -230,000 70,000 
          amortization of goodwill
                                                                                                     86,000 67,000 66,000 67,000 
          non-cash investment and financing activities
                                                                                                         
          accounts payable, accrued salaries and benefits and other accrued liabilities
                                                                                             2,541,000 1,566,000 881,000          
          tax benefit (cost) of stock option exercises
                                                                                                    -148,000 -39,000 -24,000   
          gain on sale of securities
                                                                                                        
          proceeds from investment
                                                                                                2,457,000 2,000,000      
          purchase of certain intangible assets of velio
                                                                                                         
          decrease (increase) in restricted investments
                                                                                                    590,000 1,000    
          increases to deferred revenue
                                                                                                   15,555,000      
          decreases to deferred revenue
                                                                                                   -15,217,000      
          accounts and taxes payable, accrued payroll and other liabilities
                                                                                                    -94,000 2,707,000 -748,000   
          non-cash employee stock-related compensation
                                                                                                         
          purchase of property and equipment
                                                                                                         
          acquired interfaces rights
                                                                                                         
          purchase of investments
                                                                                                         
          sale of investments
                                                                                                         
          cash flow from financing activities:
                                                                                                         
          proceeds from issuance of common stock
                                                                                                         
          deferred compensation upon acquisition of technology rights
                                                                                                         
          purchases of investments
                                                                                                         
          sales of investments