7Baggers

Calix, Inc
(NYSE:CALX) 

CALX stock logo

Calix, Inc., together with its subsidiaries, provides cloud and software platforms, and systems and services required to deliver the unified access network in the United States, the Middle East, Canada, Europe, the Caribbean, and internationally. The company's cloud and software platforms, and syste...

Founded: 1999
Full Time Employees: 763
Sector: Technology
Industry: Software-Application

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At a glance:
Bull Thesis:
Bear Thesis:
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Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-28 2025-12-31 2025-09-27 2025-06-28 2025-03-29 2024-12-31 2024-09-28 2024-06-29 2024-03-30 2023-12-31 2023-09-30 2023-07-01 2023-04-01 2022-12-31 2022-10-01 2022-07-02 2022-04-02 2021-12-31 2021-10-02 2021-07-03 2021-04-03 2020-12-31 2020-09-26 2020-06-27 2020-03-28 2019-12-31 2019-09-28 2019-06-29 2019-03-30 2018-12-31 2018-09-29 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-07-01 2017-04-01 2016-12-31 2016-09-24 2016-06-25 2016-03-26 2015-12-31 2015-09-26 2015-06-27 2015-03-28 2014-12-31 2014-09-27 2014-06-28 2014-03-29 2013-12-31 2013-09-28 2013-06-29 2013-03-30 2012-12-31 2012-09-29 2012-06-30 2012-03-31 2011-12-31 2011-09-24 2011-06-25 2011-03-26 2010-12-31 2010-09-25 2010-06-26 2010-03-27 
                                                                     
      revenue:
                                                                     
      appliance
    232,843,000                                                                 
      software and service
    47,141,000                                                                 
      total revenue
    279,984,000             155,831,000 236,334,000 202,042,000 184,948,000 176,419,000 172,231,000 168,670,000 162,074,000 170,026,000 150,508,000 119,023,000 101,682,000 120,191,000 114,485,000 100,304,000 89,350,000 115,516,000 114,699,000 111,702,000 99,403,000 137,899,000 128,827,000 126,123,000 117,518,000                             
      yoy
                 -11.67% 37.22% 19.79% 14.11% 3.76% 14.43% 41.71% 59.39% 41.46% 31.47% 18.66% 13.80% 4.05% -0.19% -10.20% -10.11% -16.23% -10.97% -11.43% -15.41%                                 
      qoq
                 -34.06% 16.97% 9.24% 4.83% 2.43% 2.11% 4.07% -4.68% 12.97% 26.45% 17.05% -15.40% 4.98% 14.14% 12.26% -22.65% 0.71% 2.68% 12.37% -27.92% 7.04% 2.14% 7.32%                              
      cost of revenue:
                                                                     
      total cost of revenue
    120,688,000             78,195,000 117,762,000 101,862,000 93,156,000 85,186,000 82,738,000 79,051,000 75,832,000 81,011,000 74,533,000 62,618,000 56,058,000 65,479,000 64,283,000 55,636,000 51,007,000 63,892,000 61,866,000 60,836,000 57,344,000 87,342,000 84,194,000 82,800,000 83,141,000 79,614,000 67,643,000 57,419,000 52,893,000 58,462,000 59,184,000 50,840,000 48,548,000 60,192,000 60,689,000 53,663,000 48,894,000 53,956,000 56,221,000 51,934,000 49,433,000 54,394,000 47,795,000 45,707,000 44,746,000 54,531,000 51,808,000 67,796,000 51,081,000 53,039,000 46,528,000 43,215,000 31,531,000 
      gross profit
    159,296,000 157,303,000 152,010,000 136,295,000 122,708,000 113,367,000 110,047,000 107,603,000 122,577,000 113,246,000 140,549,000 136,470,000 128,051,000 124,884,000 118,572,000 100,180,000 91,792,000 91,233,000 89,493,000 89,619,000 86,242,000 89,015,000 75,975,000 56,405,000 45,624,000 54,712,000 50,202,000 44,668,000 38,343,000 51,624,000 52,833,000 50,866,000 42,059,000 50,557,000 44,633,000 43,323,000 34,377,000 52,186,000 53,544,000 50,006,000 45,482,000 46,537,000 53,113,000 48,289,000 42,490,000 51,441,000 45,080,000 44,342,000 36,926,000 40,047,000 47,407,000 42,505,000 41,115,000 37,030,000 33,506,000 33,221,000 33,819,000 37,054,000 31,847,000 30,163,000 20,389,000 38,656,000 28,964,000 28,438,000 16,672,000 
      yoy
    29.82% 38.76% 38.13% 26.66% 0.11% 0.11% -21.70% -21.15% -4.27% -9.32% 18.53% 36.22% 39.50% 36.88% 32.49% 11.78% 6.44% 2.49% 17.79% 58.88% 89.03% 62.70% 51.34% 26.28% 18.99% 5.98% -4.98% -12.18% -8.84% 2.11% 18.37% 17.41% 22.35% -3.12% -16.64% -13.36% -24.42% 12.14% 0.81% 3.56% 7.04% -9.53% 17.82% 8.90% 15.07% 28.45% -4.91% 4.32% -10.19% 8.15% 41.49% 27.95% 21.57% -0.06% 5.21% 10.14% 65.87% -4.14% 9.95% 6.07% 22.29%     
      qoq
    1.27% 3.48% 11.53% 11.07% 8.24% 3.02% 2.27% -12.22% 8.24% -19.43% 2.99% 6.57% 2.54% 5.32% 18.36% 9.14% 0.61% 1.94% -0.14% 3.92% -3.12% 17.16% 34.70% 23.63% -16.61% 8.98% 12.39% 16.50% -25.73% -2.29% 3.87% 20.94% -16.81% 13.27% 3.02% 26.02% -34.13% -2.54% 7.08% 9.95% -2.27% -12.38% 9.99% 13.65% -17.40% 14.11% 1.66% 20.08% -7.79% -15.53% 11.53% 3.38% 11.03% 10.52% 0.86% -1.77% -8.73% 16.35% 5.58% 47.94% -47.26% 33.46% 1.85% 70.57%  
      gross margin %
    56.89% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 80.14% 50.17% 49.58% 49.63% 51.71% 51.96% 53.13% 53.21% 52.35% 50.48% 47.39% 44.87% 45.52% 43.85% 44.53% 42.91% 44.69% 46.06% 45.54% 42.31% 36.66% 34.65% 34.35% 29.25% 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% Infinity% Infinity% 
      operating expenses:
                                                                     
      sales and marketing
    63,486,000 66,667,000 60,257,000 63,653,000 58,059,000 59,443,000 52,301,000 52,238,000 53,897,000 55,747,000 52,356,000 54,596,000 51,865,000 51,186,000 46,134,000 41,138,000 36,091,000 37,004,000 31,144,000 29,710,000 28,051,000 29,139,000 23,079,000 21,343,000 20,624,000 23,357,000 20,123,000 19,734,000 19,339,000 25,282,000 20,722,000 20,527,000 19,901,000 23,475,000 18,448,000 18,429,000 22,429,000 24,825,000 20,575,000 19,213,000 19,062,000 21,165,000 18,424,000 19,215,000 19,759,000 21,721,000 18,717,000 18,455,000 17,390,000 18,583,000 16,612,000 17,079,000 15,801,000 17,249,000 15,093,000 14,897,000 14,890,000 16,720,000 12,593,000 14,172,000 12,066,000 13,107,000 10,408,000 10,184,000 8,422,000 
      research and development
    54,646,000 53,534,000 47,055,000 45,787,000 43,980,000 45,858,000 45,467,000 44,123,000 44,422,000 42,295,000 46,963,000 45,341,000 43,173,000 38,551,000 33,196,000 30,430,000 29,817,000 25,940,000 25,727,000 25,716,000 24,364,000 23,288,000 20,378,000 20,921,000 20,671,000 20,264,000 20,890,000 20,700,000 19,330,000 21,215,000 21,111,000 22,101,000 25,536,000 28,150,000 32,633,000 32,950,000 33,808,000 30,944,000 28,119,000 25,033,000 22,773,000 22,829,000 22,120,000 22,851,000 21,914,000 21,207,000 19,930,000 19,544,000 19,630,000 19,316,000 19,777,000 20,035,000 20,171,000 17,144,000 16,165,000 16,473,000 16,966,000 17,385,000 16,717,000 18,584,000 15,039,000 16,180,000 14,299,000 13,086,000 11,847,000 
      general and administrative
    28,448,000 27,827,000 27,293,000 26,464,000 26,750,000 26,816,000 23,175,000 22,598,000 26,290,000 27,295,000 25,301,000 24,722,000 23,077,000 22,096,000 19,237,000 18,911,000 16,031,000 14,459,000 14,631,000 13,664,000 13,025,000 11,814,000 10,768,000 11,193,000 10,669,000 9,597,000 9,566,000 9,165,000 8,787,000 10,553,000 10,481,000 10,371,000 9,095,000 9,714,000 10,203,000 9,701,000 10,257,000 8,652,000 8,615,000 11,641,000 12,684,000 9,726,000 9,140,000 9,436,000 10,152,000 8,814,000 7,625,000 7,681,000 7,251,000 7,652,000 8,478,000 7,684,000 8,131,000 6,432,000 6,773,000 6,129,000 6,780,000 5,552,000 5,475,000 6,667,000 9,308,000 8,483,000 7,344,000 7,423,000 4,748,000 
      total operating expenses
    146,580,000 148,028,000 134,605,000 135,904,000 128,789,000 132,117,000 120,943,000 118,959,000 124,609,000 125,337,000 124,620,000 124,659,000 118,115,000 111,833,000 98,567,000 90,479,000 81,939,000 76,617,000 71,502,000 69,090,000 65,440,000 64,241,000 54,225,000 59,743,000 51,964,000 53,218,000 53,053,000 49,599,000 47,456,000 56,779,000 52,157,000 53,792,000 53,168,000 63,320,000 61,896,000 62,037,000 67,193,000 64,421,000 52,809,000 55,887,000 56,220,000 56,272,000 52,236,000 54,054,000 54,377,000 54,294,000 48,824,000 48,232,000 46,823,000 48,103,000 47,419,000 47,350,000 46,655,000 44,778,000 40,583,000 40,051,000 41,188,000 42,210,000 38,741,000 47,700,000 43,123,000 39,760,000 34,373,000 30,878,000 25,202,000 
      operating income
    12,716,000 9,275,000 17,405,000 391,000 -6,081,000 -18,750,000 -10,896,000 -11,356,000 -2,032,000 -12,091,000 15,929,000 11,811,000 9,936,000 13,051,000 20,005,000 9,701,000 9,853,000                                                 
      yoy
    -309.11% -149.47% -259.74% -103.44% 199.26% 55.07% -168.40% -196.15% -120.45% -192.64% -20.37% 21.75% 0.84%                                                     
      qoq
    37.10% -46.71% 4351.41% -106.43% -67.57% 72.08% -4.05% 458.86% -83.19% -175.91% 34.87% 18.87% -23.87% -34.76% 106.22% -1.54%                                                  
      operating margin %
    4.54% Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% 8.38% 8.46% 4.80% 5.33% 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% NaN% NaN% 
      interest income and other expense, net:
                                                                     
      interest income
    2,858,000 3,924,000 3,264,000 2,959,000 3,287,000 3,466,000 3,282,000 2,960,000 2,635,000 3,151,000 2,658,000 2,255,000 1,640,000 1,139,000 595,000 240,000 35,000             -102,000 -142,000 -165,000 -223,000 -248,000 -60,000 54,000 88,000 126,000 184,000 216,000 211,000 271,000 297,000 338,000 379,000 643,000 52,000 30,000 4,000 3,000 2,000 1,000 1,000 1,000 3,000 4,000 7,000 7,000 11,000 26,000 43,000 87,000 120,000 103,000 74,000 
      other expense
    -342,000 198,000 -335,000  -196,000 -356,000 -178,000  -135,000 -84,000 -444,000  -167,000     -762,000 -463,000          -391,000                                     
      total interest income and other expense
    2,516,000 4,122,000 2,929,000  3,091,000 3,110,000 3,104,000 2,674,000 2,500,000 1,526,250 2,214,000  1,473,000                                                     
      income before income taxes
    15,232,000 13,397,000 20,334,000 3,427,000 -2,990,000 -15,640,000 -7,792,000 -8,682,000 468,000 -9,024,000 18,143,000 14,229,000 11,409,000 14,087,000 20,466,000 9,669,000 9,820,000 13,782,000 17,442,000                                               
      income taxes
    4,022,000 2,524,750 4,676,000 3,626,000 1,797,000 2,284,000 -3,824,000 -724,000 365,000 -2,425,000 1,190,000 4,856,000 1,811,000 2,160,000 7,023,000 2,148,000 1,701,000 -6,099,000 -159,982,000                                               
      net income
    11,210,000 7,212,000 15,658,000 -199,000 -4,787,000 -17,924,000 -3,968,000 -7,958,000 103,000 -6,599,000 16,953,000 9,373,000 9,598,000 11,927,000 13,443,000 7,521,000 8,119,000 19,881,000 177,424,000 20,458,000 20,615,000 24,102,000 20,538,000 -4,212,000 -6,944,000 497,000 -3,379,000 -5,045,000 -9,767,000 -5,578,000 809,000 -2,793,000 -11,736,000 -12,866,000 -17,853,000 -18,988,000 -33,325,000 -11,483,000 636,000 -5,826,000 -10,729,000 -9,546,000 922,000 -5,779,000 -11,930,000 -2,988,000 -3,848,000 -3,951,000 -10,027,000 -6,453,000 544,000 -5,153,000 -6,203,000 -6,574,000 -7,140,000 -7,091,000 -7,521,000 -5,214,000 -6,934,000 -17,646,000 -22,756,000 -738,000 -5,351,000 -3,202,000 -9,262,000 
      yoy
    -334.18% -140.24% -494.61% -97.50% -4747.57% 171.62% -123.41% -184.90% -98.93% -155.33% 26.11% 24.62% 18.22% -40.01% -92.42% -63.24% -60.62% -17.51% 763.88% -585.71% -396.88% 4749.50% -707.81% -16.51% -28.90% -108.91% -517.68% 80.63% -16.78% -56.65% -104.53% -85.29% -64.78% 12.04% -2907.08% 225.92% 210.61% 20.29% -31.02% 0.81% -10.07% 219.48% -123.96% 46.27% 18.98% -53.70% -807.35% -23.33% 61.65% -1.84% -107.62% -27.33% -17.52% 26.08% 2.97% -59.82% -66.95% 606.50% 29.58% 451.09% 145.69%     
      qoq
    55.44% -53.94% -7968.34% -95.84% -73.29% 351.71% -50.14% -7826.21% -101.56% -138.93% 80.87% -2.34% -19.53% -11.28% 78.74% -7.37% -59.16% -88.79% 767.26% -0.76% -14.47% 17.35% -587.61% -39.34% -1497.18% -114.71% -33.02% -48.35% 75.10% -789.49% -128.97% -76.20% -8.78% -27.93% -5.98% -43.02% 190.21% -1905.50% -110.92% -45.70% 12.39% -1135.36% -115.95% -51.56% 299.26% -22.35% -2.61% -60.60% 55.39% -1286.21% -110.56% -16.93% -5.64% -7.93% 0.69% -5.72% 44.25% -24.81% -60.70% -22.46% 2983.47% -86.21% 67.11% -65.43%  
      net income margin %
    4.00% Infinity% Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% 7.65% 5.69% 3.72% 4.39% 11.27% 103.02% 12.13% 12.72% 14.18% 13.65% -3.54% -6.83% 0.41% -2.95% -5.03% -10.93% -4.83% 0.71% -2.50% -11.81% -9.33% -13.86% -15.06% -28.36% -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% -Infinity% -Infinity% 
      net income per common share:
                                                                     
      basic
    170 110 240  -70 -270 -60 -120 65,338,000 -100 260 140 150 180 210 120 130 300 2,790 320 330 410 340   13,679,500 55,466,000   -65 20   -350 -350   -82.5 10   -80 20   -87.5 -80   -55 10               
      diluted
    160 110 220  -70 -270 -60 -120 68,119,000 -100 240 130 140 180 190 110 120 270 2,610 300 310 380 320   13,679,500 55,466,000   -65 20   -350 -350   -82.5 10   -80 20   -87.5 -80   -55 10               
      weighted-average number of shares used to compute
                                                                     
      other comprehensive income, net of tax:
                                                                     
      unrealized gain on available-for-sale marketable securities
    -600,000 -4,000 134,000 41,000 171,000 -796,000 1,190,000 5,000 -212,000 516,000 263,000 -141,000 1,064,000                                                     
      foreign currency translation adjustments
    -134,000 -201,000 -222,000 189,000 96,000 -306,000 273,000 5,000 -112,000 184,000 -33,000 -141,000 102,000 176,000 -335,000 -403,000 -71,000            266,000 -12,000 -343,000 -507,000 279,000 172,000 116,000 132,000 61,000 -421,000 -87,000 -23,000 -18,000 -62,000 -196,000 49,000 -30,000    11,000 11,000 35,000 30,000 -18,000             
      total other comprehensive income, net of tax
    -734,000 -205,000 -88,000 230,000 267,000 -1,102,000 1,463,000 10,000 -324,000 700,000 230,000 -282,000 1,166,000   -709,000             266,000 -12,000 -343,000 -507,000 279,000 175,000 120,000 135,000 57,000 -430,000 -96,000 18,000 47,000 -164,000 -166,000 46,000 9,000    11,000 11,000 35,000 30,000 -18,000 -1,000 24,000           
      comprehensive income
    10,476,000 7,007,000 15,570,000 31,000  -19,026,000 -2,505,000 -7,948,000 -221,000 -5,899,000 17,183,000 9,091,000 10,764,000 12,538,000 12,620,000 6,812,000 6,887,000 19,767,000 177,400,000 20,502,000 20,580,000 24,604,000 20,948,000   -4,644,500 -3,809,000   -3,573,000 466,000   -17,463,500 -17,733,000   -3,987,500 540,000   -4,224,500 756,000   -4,469,250 -3,868,000   -2,691,250 579,000               
      revenue
     181,890,250 265,437,000 241,882,000 220,242,000 206,124,000 200,945,000 198,139,000 226,310,000 264,734,000 263,835,000 261,016,000 250,008,000                         131,800,000 121,187,000 107,425,000 98,375,000 104,999,000 112,297,000 99,129,000 91,038,000 111,633,000 105,769,000 98,005,000 85,820,000 94,003,000 103,628,000 94,439,000 90,548,000 91,424,000 81,301,000 78,928,000 78,565,000 91,585,000 83,655,000 97,959,000 71,470,000 91,695,000 75,492,000 71,653,000 48,203,000 
      cost of revenue
     79,137,000 113,427,000 105,587,000 97,534,000 92,757,000 90,898,000 90,536,000 103,733,000 151,488,000 123,286,000 124,546,000 121,957,000                         188,000 174,000 183,000 127,000 160,000 163,000 211,000 175,000 206,000 206,000 354,000 354,000 378,000 362,000 377,000 351,000 344,000 345,000 381,000 363,000   331,000 504 593 528 484 140 
      interest income and other income, net:
                                                                     
      other income
       77,000    -286,000    163,000  -118,500 -134,000 -272,000 -68,000   255,000 88,000 -176,000 -707,000 -109,000 15,000 -258,000 353,000 123,000  -144,000 360,000 456,000 -294,000 313,000 -305,000 -151,000 120,000 615,000 81,000 133,000 83,000 298,000 196,000 29,000 48,000 107,000 18,000 70,000 33,000 1,000 4,000 -43,000 -279,000 67,000 19,000 -67,000 -22,000 28,000 35,000 24,000 5,000 3,250 4,000 -2,000 11,000 
      total interest income and other income
       3,036,000        2,418,000                                                      
      net loss per common share:
                                                                     
      basic
       64,525,000                    57,261,000 56,540,000                        -200                 
      diluted
       64,525,000                    57,261,000 56,540,000                        -200                 
      comprehensive loss
        -4,520,000                   -4,209,000 -7,196,000   -5,268,000 -9,501,000   -3,300,000 -11,457,000   -18,853,000 -33,268,000   -5,808,000 -10,682,000   -5,733,000 -11,921,000   -3,993,000 -10,016,000   -5,123,000 -6,221,000 -6,575,000 -7,116,000 -7,126,000 -7,568,000         
      systems
                 147,866,500 225,845,000 191,195,000 174,426,000 166,646,000 163,076,000 159,553,000 153,302,000 160,908,000 142,294,000 110,841,000 94,509,000 111,978,000 106,060,000 92,833,000 82,360,000 105,077,000 104,992,000 102,563,000 93,291,000    91,605,000                             
      services
                 7,964,500 10,489,000 10,847,000 10,522,000 9,773,000 9,155,000 9,117,000 8,772,000 9,118,000 8,214,000 8,182,000 7,173,000 8,213,000 8,425,000 7,471,000 6,990,000 10,439,000 9,707,000 9,139,000 6,112,000 21,404,000 22,385,000 18,775,000 25,913,000                             
      interest and other income, net:
                                                                     
      total interest and other income
                 1,036,000 461,000 -32,000    136,000 -37,000 -516,000 -1,063,000   -695,000 82,000 -19,000  -246,000 218,000 291,000 -517,000                                 
      other comprehensive loss, net of tax:
                                                                     
      unrealized loss on available-for-sale marketable securities
                 435,000 -488,000 -306,000 -1,161,000                                                 
      total other comprehensive loss, net of tax
                 -691,000 -823,000  -1,232,000                                                 
      interest and other expense, net:
                                                                     
      total interest and other expense
                    -33,000 -834,000 -549,000     -726,000 -275,000    -499,000                                     
      restructuring charges
                           6,286,000      -271,000 -157,000 793,000 5,340,000 1,981,000 612,000 957,000 699,000                             
      income from operations
                     14,830,500 17,991,000 20,529,000 20,802,000 24,774,000 21,750,000 -3,338,000 -6,340,000 1,494,000 -2,851,000 -4,931,000 -9,113,000 -5,155,000 676,000 -2,926,000 -11,109,000 -12,763,000 -17,263,000 -18,714,000 -32,816,000 -12,235,000 735,000 -5,881,000 -10,738,000 -9,735,000 877,000 -5,765,000 -11,887,000 -2,853,000 -3,744,000 -3,890,000 -9,897,000 -8,056,000 -12,000 -4,845,000 -5,540,000 -7,748,000 -7,077,000 -6,830,000 -7,369,000 -5,156,000 -6,894,000 -17,537,000 -22,734,000 -1,104,000 -5,409,000 -2,440,000 -8,530,000 
      interest expense
                     -72,000 -86,000 -119,000 -125,000 -322,000 -356,000 -617,000 -290,000 -437,000 -271,000 -142,000 -108,000        -44,000 -96,000 -155,000 -170,000 -164,000 -223,000 -263,000 -279,000 -379,000 -632,000 -59,000 -58,000 -57,000 -73,000 -24,000 -42,000 -28,000 -45,000 -41,000 -57,000 -42,000 -45,000 -48,000 -45,000 -46,000 -50,000 -45,000 -620,000 -473,000 
      other comprehensive income, net of tax - foreign currency translation adjustments
                     -3,750 -24,000      -252,000   -223,000                                      
      income before provision for income taxes
                       20,665,000 20,765,000 24,276,000 20,687,000 -4,064,000 -6,615,000 799,000 -2,769,000 -4,950,000 -9,612,000 -5,401,000 894,000 -2,635,000 -11,626,000 -12,698,000 -17,628,000 -18,811,000 -32,652,000 -11,590,000 845,000 -5,702,000 -10,608,000 -9,389,000 1,107,000 -5,677,000 -11,839,000 -2,735,000 -3,733,000 -3,848,000 -9,917,000 -6,474,000 -30,000 -4,929,000 -5,846,000 -6,696,000 -7,096,000 -6,950,000 -7,426,000    -22,732,000 -4,345,000 -5,330,000 -2,959,000 -9,091,000 
      provision for income taxes
                       207,000 150,000 174,000 149,000 148,000 329,000 302,000 610,000 95,000 155,000 177,000 85,000 158,000 110,000 168,000 225,000 177,000 673,000 -107,000 209,000 124,000 121,000 157,000 185,000 102,000 91,000 253,000 115,000 103,000 110,000 -21,000 -574,000 224,000 357,000 -122,000 44,000 141,000 95,000 48,000 38,000 114,000 24,000 -354,000 21,000 243,000 171,000 
      other comprehensive loss, net of tax -foreign currency translation adjustments
                       44,000 -35,000                                             
      loss on asset retirement
                              2,474,000                                       
      other comprehensive income, net of tax -foreign currency translation adjustments
                         40,250 410,000 3,000                                          
      net loss per common share:
                                                                     
      basic and diluted
                           -70 -120   -90 -180   -50 -230    -670   -120 -220   -110 -230   -80    -100 -130 -140 -150 -150 -160 -90 -150 -380 -550 50 -140 -90 -2,270 
      weighted-average number of shares used to compute
                                                                     
      basic
       64,525,000                    57,261,000 56,540,000                        -200                 
      diluted
       64,525,000                    57,261,000 56,540,000                        -200                 
      restructuring charge
                                                                     
      gain on sale of product line
                                    -6,704,000                                 
      net income per common share:
                                                                     
      basic and diluted
                             -82.5 -60                                      4,474 
      weighted-average number of shares used to compute
                                                                     
      basic
    170 110 240  -70 -270 -60 -120 65,338,000 -100 260 140 150 180 210 120 130 300 2,790 320 330 410 340   13,679,500 55,466,000   -65 20   -350 -350   -82.5 10   -80 20   -87.5 -80   -55 10               
      diluted
    160 110 220  -70 -270 -60 -120 68,119,000 -100 240 130 140 180 190 110 120 270 2,610 300 310 380 320   13,679,500 55,466,000   -65 20   -350 -350   -82.5 10   -80 20   -87.5 -80   -55 10               
      other comprehensive loss, net of tax - foreign currency translation adjustments
                             -96,750 -430,000                                       
      includes stock-based compensation as follows:
                                                                     
      unrealized gains on available-for-sale
                                                                     
      marketable securities
                                     3,000 4,000   -9,000 -9,000 41,000 65,000 -102,000 30,000 -3,000 39,000                     
      unrealized losses on available-for-sale
                                                                     
      products
                                     116,495,000 106,442,000 107,348,000                              
      amortization of intangible assets
                                         814,000 813,000 814,000 1,663,000 2,089,000 2,088,000 2,088,000 2,088,000 2,088,000 2,089,000 2,088,000 2,088,000 2,088,000 2,089,000 2,088,000 2,088,000 2,088,000 2,088,000 2,088,000 1,275,000 2,042,000 2,806,000 3,188,000 1,516,000 185,000 185,000 185,000 185,000 
      litigation settlement gain
                                          -4,500,000                           
      net loss per common share, basic and diluted
                                       -380                              
      unrealized gains on available-for-sale marketable securities
                                       3,000 -4,000                             
      weighted-average number of shares used to
                                                                     
      compute net loss per common share:
                                                                     
      basic and diluted
                                        49,525,000   48,371,000 48,591,000   51,950,000 51,732,000   50,573,000                  
      products and services
                                         78,800,000 66,830,000 56,605,000 51,230,000 56,373,000 57,096,000 48,752,000 46,460,000 58,104,000 58,600,000 51,575,000 46,806,000 51,868,000 54,132,000 49,846,000 47,345,000 52,306,000 45,707,000 43,619,000 43,471,000 52,489,000 49,002,000 54,899,000 39,308,000 51,679,000 45,168,000 41,855,000 30,171,000 
      compute net income per common share:
                                                                     
      basic
                                         12,144,500 48,773,000   12,953,500 51,756,000   12,658,750 51,048,000                   
      diluted
                                         12,144,500 49,309,000   12,953,500 52,016,000   12,658,750 51,048,000                   
      includes stock-based compensation as follows: - sum
                                             3,212,000 2,590,000 4,341,000 3,662,000 3,898,000 3,813,000 4,404,000 3,902,000 4,956,000 4,971,000 5,275,000 4,719,000 4,476,000 4,307,000 4,339,000 4,315,000         
      marketable securities adjustment
                                                 -9,500 -13,000 -25,000                  
      foreign currency translation adjustment
                                                 -3,250 -7,000 -17,000      8,750 24,000 -35,000 -47,000         
      total other comprehensive income
                                                 -12,750 -20,000 -42,000        -35,000          
      weighted-average shares used for eps calculation
                                                                     
      basic
     66,041,000    65,879,000    65,980,000    65,058,000    63,277,000    59,074,000                           50,271,000  49,694,000               
      diluted
     69,305,000    65,879,000    69,320,000    68,911,000    67,856,000    61,998,000                           50,271,000  51,142,000               
      weighted-average number of shares used to compute net loss per common share:
                                                                     
      basic and diluted
                             54,993,000    52,609,000    50,155,000    48,730,000    51,489,000    50,808,000    49,419,000  49,153,000 48,911,000 48,180,000 48,353,000 47,972,000 47,850,000 45,546,000 47,128,000 46,050,000 41,177 29,778 37,341 37,212  
      merger-related expenses
                                                               9,709,000 10,257,000     
      merger-related and other expenses
                                                              1,404,000 5,482,000 6,041,000     
      unrealized loss on investment
                                                                     
      other income:
                                                                     
      accumulated other comprehensive loss:
                                                                     
      change in fair value of preferred stock warrants
                                                                    -173,000 
      net loss before provision for income taxes
                                                             -11,790,000 -6,896,000 -17,532,000      
      preferred stock dividends
                                                                    900,000 
      net loss attributable to common stockholders
                                                             -5,214,000 -6,934,000 -17,646,000 -22,756,000 -738,000 -5,351,000 -3,202,000 -10,162,000 
      weighted-average number of shares used to compute net loss per share:
                                                                     
      basic and diluted
                             54,993,000    52,609,000    50,155,000    48,730,000    51,489,000    50,808,000    49,419,000  49,153,000 48,911,000 48,180,000 48,353,000 47,972,000 47,850,000 45,546,000 47,128,000 46,050,000 41,177 29,778 37,341 37,212  
      amortization of existing technologies
                                                                 1,360,000 1,360,000 1,360,000 1,360,000 
      acquisition-related costs
                                                                 1,805,000 2,137,000   
      net income per share
                                                                     
      basic and diluted
                             -82.5 -60                                      4,474 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-28 2025-12-31 2025-09-27 2025-06-28 2025-03-29 2024-12-31 2024-09-28 2024-06-29 2024-03-30 2023-12-31 2023-09-30 2023-07-01 2023-04-01 2022-12-31 2022-10-01 2022-07-02 2022-04-02 2021-12-31 2021-10-02 2021-07-03 2021-04-03 2020-12-31 2020-09-26 2020-06-27 2020-03-28 2019-12-31 2019-09-28 2019-06-29 2019-03-30 2018-12-31 2018-09-29 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-07-01 2017-04-01 2016-12-31 2016-09-24 2016-06-25 2016-03-26 2015-12-31 2015-09-26 2015-06-27 2015-03-28 2014-12-31 2014-09-27 2014-06-28 2014-03-29 2013-12-31 2013-09-28 2013-06-29 2013-03-30 2012-12-31 2012-09-29 2012-06-30 2012-03-31 2011-12-31 2011-09-24 2011-06-25 2011-03-26 2010-12-31 2010-09-25 2010-06-26 2010-03-27 
                                                                       
        assets
                                                                       
        current assets:
                                                                       
        cash and cash equivalents
      54,601,000 143,086,000 95,012,000 76,538,000 42,300,000 43,162,000 62,361,000 84,486,000 88,418,000 63,409,000 135,675,000 90,187,000 94,186,000 79,073,000 75,172,000 51,516,000 44,369,000 51,333,000 60,215,000 58,590,000 85,854,000 80,807,000 63,826,000 50,552,000 46,189,000 46,829,000 37,558,000 34,942,000 44,067,000 49,646,000 53,033,000 48,175,000 42,628,000 39,775,000 64,184,000 37,294,000 26,318,000 50,359,000 31,764,000 26,045,000 21,365,000 23,626,000 36,194,000 39,672,000 29,618,000 48,829,000 39,399,000 32,543,000 75,169,000 82,747,000 79,124,000 69,379,000 48,059,000 46,995,000 57,422,000 53,085,000 49,562,000 38,938,000 30,249,000 18,660,000 29,547,000 66,304,000 35,141,000 24,721,000 80,963,000 
        marketable securities
      188,688,000 245,018,000 244,611,000 222,430,000 240,010,000 253,929,000 225,223,000 176,733,000 151,064,000 156,937,000 114,417,000 173,941,000 162,864,000 162,642,000 159,534,000 173,369,000 168,756,000 153,002,000 128,492,000 117,259,000 64,174,000 52,982,000 39,986,000            6,598,000 12,915,000 25,215,000 27,748,000 29,554,000 38,167,000 42,895,000 49,964,000 57,659,000 59,785,000 68,157,000 62,850,000 48,400,000 46,439,000           2,014,000 8,911,000 8,999,000 32,020,000 74,102,000 77,166,000 36,840,000 
        accounts receivable
      116,772,000 99,367,000 87,465,000 63,076,000 75,511,000 79,321,000 85,272,000 82,064,000 100,307,000 126,027,000 80,661,000 96,980,000 92,209,000 93,804,000 100,527,000 86,128,000 87,952,000 85,219,000 91,929,000 80,164,000 74,408,000 69,419,000 69,131,000 58,590,000 67,136,000 46,509,000 48,532,000 60,186,000 55,202,000 67,026,000 67,671,000 69,535,000 55,746,000 80,392,000 44,227,000 53,392,000 64,188,000 51,336,000 57,256,000 49,118,000 43,804,000 47,155,000 48,188,000 41,985,000 39,000,000 30,744,000 42,781,000 47,330,000 44,134,000 43,520,000 54,421,000 62,726,000 70,717,000 59,519,000 56,392,000 56,391,000 48,140,000 47,943,000 47,901,000 57,940,000 54,342,000 43,377,000 32,881,000 35,540,000 25,178,000 
        inventory
      154,626,000 133,737,000 107,981,000 110,522,000 100,835,000 102,727,000 100,609,000 113,484,000 119,782,000 132,985,000 150,033,000 153,394,000 156,513,000 149,160,000 141,116,000 98,324,000 105,016,000 88,880,000 75,166,000 77,136,000 72,211,000 52,268,000 41,616,000 36,659,000 30,539,000 40,153,000 46,355,000 45,360,000 47,226,000 50,151,000 30,267,000 19,988,000 27,061,000 31,529,000 36,321,000 39,572,000 46,538,000 44,545,000 40,190,000 40,761,000 41,127,000 47,667,000 43,769,000 40,710,000 40,637,000 46,753,000 43,845,000 45,888,000 45,060,000 51,071,000 39,376,000 37,402,000 39,232,000 43,282,000 30,175,000 33,243,000 37,157,000 44,604,000 44,152,000 38,489,000 49,380,000 24,557,000 24,920,000 24,943,000 26,267,000 
        prepaid expenses and other current assets
      72,487,000 70,345,000 80,448,000 89,748,000 103,344,000 105,596,000 111,553,000 113,391,000 119,214,000 118,598,000 106,839,000 84,782,000 70,302,000 62,691,000 58,827,000 51,505,000 34,129,000 30,811,000 18,957,000 17,449,000 13,122,000 11,414,000 9,656,000 11,640,000 11,223,000 9,698,000 8,787,000 7,094,000 9,961,000 7,306,000 10,640,000 11,059,000 12,551,000 8,364,000 11,504,000 11,112,000 11,911,000 10,571,000 15,700,000 8,139,000 9,972,000 9,470,000 8,311,000 11,457,000 10,779,000 12,936,000 6,469,000 5,038,000 4,869,000 5,757,000 6,656,000 8,126,000 6,063,000         3,245,000    
        total current assets
      587,174,000 691,553,000 615,517,000 562,314,000 562,000,000 584,735,000 585,018,000 570,158,000 578,785,000 597,956,000 587,625,000 599,284,000 576,074,000 547,370,000 535,176,000 460,842,000 440,222,000 409,245,000 374,759,000 350,598,000 309,769,000 266,890,000 224,843,000 158,069,000 155,715,000 143,817,000 141,860,000 148,210,000 157,084,000 174,757,000 161,611,000 148,757,000 137,986,000 162,455,000 185,693,000 194,379,000 214,624,000 219,322,000 189,182,000 169,042,000 163,271,000 182,800,000 197,119,000 194,893,000 189,953,000 207,487,000 192,523,000 193,490,000 187,370,000 204,466,000 207,375,000 206,701,000 190,488,000 176,550,000 165,332,000 159,989,000 148,209,000 144,992,000 140,795,000 141,229,000 156,014,000 177,274,000 180,515,000 181,800,000 186,654,000 
        property and equipment
      38,998,000 37,812,000 32,722,000 32,415,000 30,832,000 31,153,000 31,105,000 31,058,000 28,876,000 29,461,000 29,123,000 28,836,000 27,419,000 25,834,000 24,348,000 22,029,000 22,307,000 21,783,000 20,960,000 19,663,000 20,103,000 20,381,000 20,168,000 20,966,000 20,402,000 21,527,000 28,387,000 29,105,000 26,372,000 24,945,000 21,252,000 15,557,000 14,808,000 15,681,000 16,997,000 17,959,000 18,144,000 17,984,000 16,017,000 15,648,000 16,515,000 17,149,000 18,484,000 18,790,000 19,403,000 20,144,000 20,159,000 17,289,000 17,122,000 17,473,000 18,379,000 18,547,000 19,013,000 21,083,000 17,381,000 18,195,000 17,182,000 16,130,000 17,222,000 18,206,000 19,283,000 11,815,000 11,524,000 11,818,000 11,591,000 
        right-of-use operating leases
      13,662,000 14,665,000 10,822,000 4,736,000 5,535,000 6,216,000 7,516,000 8,250,000 9,065,000 9,262,000 9,964,000 10,754,000 10,060,000 9,283,000 10,002,000 10,962,000 11,796,000 12,182,000 10,841,000 10,983,000 11,015,000 11,741,000 10,684,000 11,079,000 15,212,000 15,864,000 15,801,000 16,422,000 17,062,000                                     
        deferred tax assets
      164,719,000 165,636,000 168,712,000 178,817,000 179,005,000 177,601,000 177,775,000 173,047,000 170,213,000 167,691,000 162,901,000 166,331,000 167,918,000 167,031,000 163,737,000 167,928,000 168,685,000 168,962,000 161,968,000                                               
        goodwill
      116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 116,175,000 118,552,000 65,576,000 65,576,000 65,576,000 65,576,000 
        other assets
      30,680,000 32,681,000 32,421,000 26,949,000 23,572,000 23,387,000 19,936,000 19,208,000 19,674,000 21,320,000 20,872,000 20,388,000 17,181,000 19,142,000 17,441,000 14,876,000 16,061,000 13,685,000 11,014,000 10,416,000 11,073,000 12,165,000 13,463,000 15,025,000 16,550,000 19,440,000 14,288,000 1,336,000 1,459,000 1,203,000 1,987,000 1,981,000 1,943,000 759,000 777,000 811,000 816,000 1,181,000 937,000 1,075,000 1,202,000 1,144,000 1,091,000 1,241,000 1,113,000 1,236,000 1,346,000 1,503,000 1,618,000 1,745,000 1,827,000 1,591,000 1,694,000 1,788,000 1,774,000 1,892,000 2,050,000 2,194,000 2,273,000 2,381,000 2,491,000 2,376,000 2,391,000 2,416,000 863,000 
        liabilities and stockholders’ equity
                                                                       
        current liabilities:
                                                                       
        accounts payable
      69,122,000 41,523,000 20,138,000 23,746,000 23,471,000 20,226,000 24,318,000 11,697,000 19,026,000 34,746,000 22,134,000 35,358,000 35,376,000 41,407,000 66,246,000 22,951,000 37,553,000 29,061,000 31,340,000 34,971,000 29,224,000 13,115,000 16,557,000 10,204,000 20,464,000 10,789,000 24,151,000 37,522,000 34,326,000 40,209,000 32,792,000 26,112,000 17,836,000 35,977,000 29,576,000 27,840,000 24,520,000 23,827,000 19,340,000 13,802,000 11,144,000 19,603,000 16,784,000 18,538,000 12,792,000 23,629,000 13,258,000 12,850,000 10,887,000 23,163,000 18,073,000 16,714,000 13,673,000 16,804,000 16,436,000 20,247,000 14,133,000 14,250,000 11,942,000 10,932,000 16,000,000 10,268,000 8,785,000 4,309,000 7,486,000 
        accrued liabilities
      78,555,000 91,339,000 78,511,000 74,122,000 69,871,000 84,167,000 76,075,000 89,145,000 87,605,000 116,227,000 82,078,000 85,275,000 80,838,000 90,474,000 80,573,000 74,782,000 71,764,000 71,597,000 61,444,000 58,627,000 56,031,000 68,736,000 60,506,000 64,684,000 57,975,000 57,546,000 57,060,000 47,657,000 55,343,000 57,869,000 57,052,000 47,445,000 48,783,000 49,279,000 59,401,000 72,662,000 77,015,000 69,715,000 49,019,000 43,930,000 43,801,000 35,512,000 38,280,000 36,545,000 39,447,000 39,443,000 37,579,000 34,689,000 34,570,000 32,075,000 35,034,000 36,664,000 36,673,000 36,176,000 34,137,000 33,706,000 35,921,000 36,214,000 39,450,000 39,629,000 44,668,000 25,987,000 25,966,000 26,510,000 28,808,000 
        deferred revenue
      30,800,000 30,386,000 23,992,000 25,774,000 29,482,000 26,750,000 29,513,000 32,298,000 39,448,000 36,669,000 34,944,000 41,814,000 44,497,000 33,541,000 33,687,000 33,511,000 32,261,000 27,478,000 24,217,000 23,951,000 24,127,000 19,189,000 15,591,000 16,359,000 19,912,000 17,158,000 18,101,000 18,528,000 15,564,000 15,600,000 16,813,000 17,205,000 14,676,000 13,076,000 28,228,000 41,847,000 44,416,000 27,854,000 16,226,000 12,367,000 9,802,000 12,124,000 11,414,000 9,132,000 9,036,000 12,722,000 20,095,000 26,346,000 29,013,000 34,862,000 45,202,000 53,763,000 48,629,000 39,315,000 30,674,000 24,152,000 19,685,000 16,783,000 19,448,000 23,081,000 18,076,000 14,062,000 18,662,000 29,263,000 25,030,000 
        total current liabilities
      178,477,000 163,248,000 122,641,000 123,642,000 122,824,000 131,143,000 129,906,000 133,140,000 146,079,000 187,642,000 139,156,000 162,447,000 160,711,000 165,422,000 180,506,000 131,244,000 141,578,000 128,136,000 117,001,000 117,549,000 109,382,000 101,040,000 92,654,000 117,247,000 128,351,000 115,493,000 123,612,000 128,707,000 135,233,000 143,678,000 136,657,000 120,762,000 111,295,000 128,332,000 147,205,000 142,349,000 145,951,000 121,396,000 84,585,000 70,099,000 64,747,000 67,239,000 66,478,000 64,215,000 61,275,000 75,794,000 70,932,000 73,885,000 74,470,000 90,100,000 98,309,000 107,141,000 98,975,000 92,295,000 81,247,000 78,105,000 69,739,000 67,247,000 70,840,000 73,642,000 78,744,000 50,317,000 53,413,000 60,082,000 66,324,000 
        long-term portion of deferred revenue
      19,708,000 19,890,000 19,939,000 20,111,000 21,310,000 20,883,000 21,384,000 21,936,000 24,434,000 24,864,000 25,413,000 25,425,000 25,121,000 25,072,000 24,919,000 24,709,000 21,189,000 22,016,000 21,568,000 21,307,000 20,329,000 19,904,000 19,564,000 18,192,000 17,656,000 18,340,000 17,593,000 17,792,000 18,252,000 17,496,000 18,108,000 18,497,000 20,712,000 20,645,000 21,173,000 21,104,000 20,876,000 20,237,000 19,850,000 19,649,000 19,696,000 19,569,000 19,390,000 19,371,000 19,428,000 19,393,000 18,807,000 18,640,000 18,469,000 18,431,000 18,197,000 17,335,000 16,917,000 15,782,000 15,299,000 14,936,000 14,570,000 13,347,000 12,265,000 11,970,000 11,609,000 10,985,000 9,876,000 8,572,000 6,928,000 
        operating leases
      11,860,000 12,756,000 9,271,000 2,953,000 3,378,000 3,720,000 4,795,000 5,859,000 6,925,000 7,421,000 8,446,000 9,504,000 8,825,000 8,442,000 9,443,000 10,584,000 11,656,000 12,376,000 11,516,000 11,920,000 12,167,000 12,946,000 12,356,000 12,975,000 13,642,000 14,337,000 14,407,000 15,045,000 15,692,000                                     
        other long-term liabilities
      3,386,000 3,409,000 2,012,000 2,028,000 2,441,000 2,581,000 2,752,000 2,737,000 2,657,000 2,956,000 2,700,000 2,622,000 2,331,000 6,332,000 4,264,000 9,146,000 9,018,000 11,076,000 10,006,000 11,421,000 11,542,000 13,137,000 13,228,000 13,732,000 13,490,000 14,625,000 14,749,000 2,498,000 3,134,000 3,972,000 2,186,000 2,051,000 866,000 1,130,000 881,000 638,000 775,000 878,000 979,000 1,085,000 1,196,000 1,293,000 1,700,000 1,903,000 2,091,000 2,443,000 1,743,000 958,000 1,090,000 1,145,000 1,321,000 1,394,000 1,525,000 745,000 896,000  1,198,000 1,528,000 1,662,000 1,588,000 1,833,000 951,000 992,000 1,040,000 1,089,000 
        total liabilities
      213,431,000 199,303,000 153,863,000 148,734,000 149,953,000 158,327,000 158,837,000 163,672,000 180,095,000 222,883,000 175,715,000 199,998,000 196,988,000 205,268,000 219,132,000 175,683,000 183,441,000 173,604,000 160,091,000 162,197,000 153,420,000 147,027,000 137,802,000 162,146,000 173,139,000 162,795,000 170,361,000 164,042,000 172,311,000 165,146,000 156,951,000 141,310,000 132,873,000 150,107,000 169,259,000 164,091,000 167,602,000 142,511,000 105,414,000 90,833,000 85,639,000 88,101,000 87,568,000 85,489,000 82,794,000 97,630,000 91,482,000 93,483,000 94,029,000 109,676,000 117,827,000 125,870,000 117,417,000 108,822,000 97,442,000 94,055,000 85,507,000 82,122,000 84,767,000 87,200,000 92,186,000 62,253,000 64,281,000 69,694,000 89,341,000 
        commitments and contingencies
                                                                       
        stockholders’ equity:
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 28, 2026 and december 31, 2025
                                                                       
        common stock
      1,610,000 1,678,000 1,657,000 1,633,000 1,643,000 1,661,000 1,658,000 1,645,000 1,638,000 1,627,000 1,649,000 1,658,000 1,656,000 1,644,000 1,636,000 1,631,000 1,616,000 1,607,000 1,594,000 1,580,000 1,572,000 1,553,000 1,544,000 1,587,000 1,549,000 1,545,000 1,521,000 1,520,000 1,488,000 1,482,000 1,462,000 1,460,000 1,426,000 1,421,000 1,393,000 1,390,000 1,374,000 1,368,000 1,353,000 1,351,000 1,328,000 1,326,000 1,316,000 1,313,000 1,295,000 1,291,000 1,280,000 1,273,000 1,258,000 1,256,000 1,244,000 1,238,000 1,222,000 1,222,000 1,210,000 1,205,000 1,196,000 1,195,000 1,182,000 1,167,000 1,133,000 968,000 933,000 933,000 909,000 
        additional paid-in capital
      1,098,541,000 1,230,191,000 1,200,506,000 1,166,266,000 1,160,781,000 1,170,017,000 1,148,742,000 1,121,786,000 1,102,314,000 1,078,393,000 1,104,435,000 1,112,434,000 1,097,596,000 1,070,100,000 1,050,826,000 1,032,833,000 1,014,336,000 997,855,000 984,833,000 972,259,000 961,846,000 948,055,000 939,874,000 912,402,000 899,978,000 895,899,000 888,828,000 886,076,000 879,475,000 876,073,000 862,642,000 860,196,000 853,809,000 851,054,000 843,811,000 840,931,000 839,018,000 836,563,000 830,225,000 825,790,000 821,236,000 818,754,000 813,776,000 811,737,000 805,525,000 801,810,000 794,724,000 791,756,000 785,700,000 782,253,000 776,209,000 772,650,000 764,992,000 760,232,000 754,755,000 751,260,000 744,695,000 740,309,000 734,045,000 731,617,000 733,360,000 605,939,000 607,669,000 600,157,000 581,926,000 
        accumulated other comprehensive loss
      -1,142,000 -408,000 -203,000 -115,000 -345,000 -612,000  -973,000 -983,000 -659,000 -1,359,000 -1,589,000 -1,307,000 -2,473,000 -3,084,000 -2,261,000 -1,552,000 -320,000 -206,000 -182,000 -226,000 -191,000 -693,000 -1,103,000 -1,106,000 -854,000 -1,140,000 -710,000 -487,000 -753,000 -740,000 -397,000  -169,000 -344,000 -464,000 -599,000 -656,000 -226,000 -130,000 -148,000                         
        accumulated deficit
      -361,032,000 -372,242,000 -379,454,000 -395,112,000 -394,913,000 -390,126,000 -372,202,000 -368,234,000 -360,276,000 -360,379,000 -353,780,000 -370,733,000 -380,106,000 -389,704,000 -401,631,000 -415,074,000 -422,595,000 -430,714,000 -450,595,000 -628,019,000 -648,477,000 -669,092,000 -693,194,000 -713,732,000 -709,520,000 -702,576,000 -703,073,000 -699,694,000 -694,649,000 -684,882,000 -679,304,000 -680,113,000 -677,320,000 -667,357,000 -654,491,000 -636,638,000 -617,650,000 -584,325,000 -572,842,000 -573,478,000 -567,652,000 -556,923,000 -547,377,000 -548,299,000 -542,520,000 -530,590,000 -527,602,000 -523,754,000 -519,803,000 -509,776,000 -503,323,000 -503,867,000 -498,714,000 -492,511,000 -485,937,000 -478,797,000 -471,706,000 -464,185,000 -458,971,000 -452,037,000 -434,391,000 -411,635,000 -410,897,000 -405,546,000 -402,344,000 
        total stockholders’ equity
      737,977,000 859,219,000 822,506,000 772,672,000 767,166,000 780,940,000 778,688,000 754,224,000 742,693,000 718,982,000 750,945,000 741,770,000 717,839,000 679,567,000 647,747,000 617,129,000 591,805,000 568,428,000 535,626,000 345,638,000 314,715,000 280,325,000 247,531,000 159,168,000 150,915,000 154,028,000 146,150,000 147,206,000 145,841,000 151,934,000 144,074,000 141,160,000 138,039,000 144,963,000 150,383,000 165,233,000 182,157,000  218,524,000 213,547,000 214,778,000 235,785,000 256,560,000 261,509,000 264,389,000 272,591,000 268,541,000 269,434,000 267,356,000 273,923,000 274,309,000 270,165,000 267,614,000 269,075,000 270,161,000 273,777,000 274,330,000 277,417,000 276,341,000 280,792,000 300,138,000 195,303,000 197,785,000 195,521,000 180,493,000 
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2025 and 2024
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 27, 2025 and december 31, 2024
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 28, 2025 and december 31, 2024
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 29, 2025 and december 31, 2024
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2024 and 2023
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 28, 2024 and december 31, 2023
                                                                       
        accumulated other comprehensive income
            490,000                          110,000         -195,000 -31,000 135,000 89,000 80,000 139,000 159,000 201,000 190,000 179,000 144,000 114,000 132,000 133,000 109,000          
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 29, 2024 and december 31, 2023
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 30, 2024 and december 31, 2023
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2023 and 2022
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 30, 2023 and december 31, 2022
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of july 1, 2023 and december 31, 2022
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of april 1, 2023 and december 31, 2022
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2022 and 2021
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of october 1, 2022 and december 31, 2021
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of july 2, 2022 and december 31, 2021
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of april 2, 2022 and december 31, 2021
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2021 and 2020
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of october 2, 2021 and december 31, 2020
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of july 3, 2021 and december 31, 2020
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of april 3, 2021 and december 31, 2020
                                                                       
        restricted cash
                            628,000 628,000 628,000 628,000 628,000 628,000 628,000 628,000                295,000 295,000 295,000 295,000 295,000 972,000       754,000 1,054,000 1,054,000 1,054,000     
        line of credit
                             26,000,000 30,000,000 30,000,000 24,300,000 25,000,000 30,000,000 30,000,000 30,000,000 30,000,000 30,000,000 30,000,000 30,000,000                               
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2020 and 2019
                                                                       
        treasury stock
                             -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -39,986,000 -27,177,000 -11,124,000 -3,377,000                      
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 26, 2020 and december 31, 2019
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 27, 2020 and december 31, 2019
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 28, 2020 and december 31, 2019
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2019 and 2018
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 28, 2019 and december 31, 2018
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 29, 2019 and december 31, 2018
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 30, 2019 and december 31, 2018
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2018 and 2017
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 29, 2018 and december 31, 2017
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 30, 2018 and december 31, 2017
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 31, 2018 and december 31, 2017
                                                                       
        deferred cost of revenue
                                       2,395,000 22,859,000 40,094,000 40,454,000 34,763,000 14,718,000 6,812,000 4,108,000 4,918,000 2,998,000 1,284,000 1,762,000 5,080,000 11,334,000 15,957,000 17,843,000 21,076,000 26,826,000 29,068,000 26,417,000 21,077,000 16,960,000  9,400,000 8,324,000 8,932,000 10,835,000 9,854,000     
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2017 and december 31, 2016
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 30, 2017 and december 31, 2016
                                                                       
        intangible assets
                                           813,000 1,627,000 2,440,000 3,254,000 6,618,000 11,259,000 15,899,000 20,539,000 25,179,000 29,820,000 34,460,000 39,100,000 43,740,000 48,380,000 53,021,000 57,661,000 62,301,000 66,941,000 71,581,000 76,221,000 80,048,000 84,643,000 90,001,000 95,984,000 515,000 2,060,000 3,605,000 5,150,000 
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of july 1, 2017 and december 31, 2016
                                                                       
        total assets
                                          349,759,000 355,475,000 323,938,000 304,380,000 300,417,000 323,886,000 344,128,000 346,998,000 347,183,000 370,221,000 360,023,000 362,917,000 361,385,000 383,599,000 392,136,000 396,035,000 385,031,000 377,897,000 367,603,000 367,832,000 359,837,000 359,539,000 361,108,000 367,992,000 392,324,000 257,556,000 262,066,000 265,215,000 269,834,000 
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of april 1, 2017 and december 31, 2016
                                                                       
        total liabilities and stockholders’ equity
                                          349,759,000  323,938,000 304,380,000 300,417,000 323,886,000 344,128,000 346,998,000 347,183,000 370,221,000 360,023,000 362,917,000 361,385,000 383,599,000 392,136,000 396,035,000 385,031,000 377,897,000 367,603,000 367,832,000 359,837,000 359,539,000 361,108,000 367,992,000 392,324,000     
        liabilities and stockholders' equity
                                                                       
        stockholders' equity:
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2016 and december 31, 2015
                                                                       
        total stockholders' equity
                                           212,964,000                            
        total liabilities and stockholders' equity
                                           355,475,000                            
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of september 24, 2016 and december 31, 2015
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of june 25, 2016 and december 31, 2015
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of march 26, 2016 and december 31, 2015
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2015 and december 31, 2014
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of september 26, 2015 and december 31, 2014
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of june 27, 2015 and december 31, 2014
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of march 28, 2015 and december 31, 2014
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2014 and december 31, 2013
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of september 27, 2014 and december 31, 2013
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of june 28, 2014 and december 31, 2013
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of march 29, 2014 and december 31, 2013
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2013 and december 31, 2012
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of september 28, 2013 and december 31, 2012
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of june 29, 2013 and december 31, 2012
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of march 30, 2013 and december 31, 2012
                                                                       
        prepaids and other current assets
                                                           5,677,000 4,383,000  3,950,000 4,429,000 6,493,000 5,340,000 2,838,000  3,044,000 3,584,000 3,560,000 
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2012 and december 31, 2011
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of september 29, 2012 and december 31, 2011
                                                                       
        deferred cost of goods sold
                                                             12,673,000      7,771,000 10,427,000 15,846,000 13,846,000 
        prepaid and other current assets
                                                             4,597,000          
        other long term liabilities
                                                             1,014,000          
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of june 30, 2012 and december 31, 2011
                                                                       
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of march 31, 2012 and december 31, 2011
                                                                       
        other comprehensive income
                                                              145,000 98,000 85,000 45,000 36,000 31,000 80,000  2,000 
        preferred stock, 0.025 par value; 5,000,000 shares authorized; no shares issued and outstanding as of december 31, 2011 and december 31, 2010
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 24, 2011 and december 31, 2010
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 25, 2011 and december 31, 2010
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 26, 2011 and december 31, 2010
                                                                       
        liabilities, convertible preferred stock and stockholders’ equity
                                                                       
        preferred stock warrant liabilities
                                                                       
        current portion of loans payable
                                                                      5,000,000 
        loan payable
                                                                      15,000,000 
        convertible preferred stock, 0.025 par value, issuable in series: no shares and 38,760 shares authorized at december 31, 2010 and december 31, 2009; no shares and 22,492 shares issued and outstanding at december 31, 2010 and december 31, 2009
                                                                       
        stockholders’ equity
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of december 31, 2010 and december 31, 2009
                                                                       
        total liabilities, convertible preferred stock and stockholders’ equity
                                                                   257,556,000 262,066,000 265,215,000 269,834,000 
        liabilities, convertible redeemable preferred stock and stockholders’ deficit
                                                                       
        convertible preferred stock, 0.025 par value, issuable in series: no shares and 38,760 shares authorized at september 25, 2010 and december 31, 2009; no shares and 22,492 shares issued and outstanding at september 25, 2010 and december 31, 2009
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of september 25, 2010 and december 31, 2009
                                                                       
        convertible preferred stock, 0.025 par value, issuable in series: no shares and 38,760 shares authorized at june 26, 2010 and december 31, 2009; no shares and 22,492 shares issued and outstanding at june 26, 2010 and december 31, 2009
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of june 26, 2010 and december 31, 2009
                                                                       
        other comprehensive
                                                                     -23,000  
        convertible preferred stock, 0.025 par value, issuable in series: no shares and 38,760 shares authorized at march 27, 2010 and december 31, 2009; no shares and 22,492 shares issued and outstanding at march 27, 2010 and december 31, 2009
                                                                       
        preferred stock, 0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of march 27, 2010 and december 31, 2009
                                                                       
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-28 2025-12-31 2025-09-27 2025-06-28 2025-03-29 2024-12-31 2024-09-28 2024-06-29 2024-03-30 2023-12-31 2023-09-30 2023-07-01 2023-04-01 2022-12-31 2022-10-01 2022-07-02 2022-04-02 2021-12-31 2021-10-02 2021-07-03 2021-04-03 2020-12-31 2020-09-26 2020-06-27 2020-03-28 2019-12-31 2019-09-28 2019-06-29 2019-03-30 2018-12-31 2018-09-29 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-07-01 2017-04-01 2016-12-31 2016-09-24 2016-06-25 2016-03-26 2015-12-31 2015-09-26 2015-06-27 2015-03-28 2014-12-31 2014-09-27 2014-06-28 2014-03-29 2013-12-31 2013-09-28 2013-06-29 2013-03-30 2012-12-31 2012-09-29 2012-06-30 2012-03-31 2011-12-31 2011-09-24 2011-06-25 2011-03-26 2010-12-31 2010-09-25 2010-06-26 2010-03-27 
                                                                         
          operating activities:
                                                                         
          net income
        11,210,000 7,212,000   -4,787,000 -17,924,000 -3,968,000 -7,958,000 103,000 -6,599,000 16,953,000 9,373,000 9,598,000 11,927,000 13,443,000 7,521,000 8,119,000 19,881,000 177,424,000 20,458,000 20,615,000 24,102,000 20,538,000                                           
          adjustments to reconcile net income to net cash from operating activities:
                                                                         
          stock-based compensation
        20,605,000 21,953,000 20,619,000 25,612,000 19,745,000 22,075,000 16,371,000 15,459,000 16,856,000 12,681,000 16,026,000 17,844,000 16,220,000 13,324,000 11,027,000 10,008,000 10,467,000 6,175,000 6,661,000 6,223,000 5,171,000 4,160,000 3,575,000 3,241,000 2,984,000 2,705,000 2,762,000 2,569,000 3,145,000 9,673,000 2,499,000 2,544,000 2,757,000 3,054,000 2,996,000 2,778,000 3,540,000 3,919,000 4,677,000 2,968,000 2,721,000 3,212,000 2,590,000 4,341,000 3,662,000 3,898,000 3,813,000 4,404,000 3,902,000 4,956,000 4,971,000 5,275,000 4,719,000 4,476,000 4,307,000 4,339,000 4,315,000 4,366,000 3,796,000 5,324,000 8,117,000     
          depreciation and amortization
        4,376,000 4,400,000 4,697,000 4,342,000 4,271,000 4,745,000 4,817,000 5,121,000 4,867,000 4,450,000 4,266,000 4,192,000 3,723,000 3,478,000 3,166,000 3,728,000 3,943,000 3,661,000 3,614,000 3,660,000 4,077,000 3,407,000 3,305,000 3,462,000 3,544,000 2,909,000 2,763,000 2,363,000 2,281,000 2,095,000 2,150,000 2,319,000 2,623,000 2,546,000 2,703,000 2,466,000 2,463,000 2,037,000 2,151,000 2,176,000 1,955,000 2,660,000 2,624,000 2,498,000 2,480,000 2,491,000 2,250,000 2,251,000 2,271,000 2,414,000 2,404,000 2,509,000 2,854,000 2,211,000 2,222,000 2,169,000 1,960,000 2,005,000 2,090,000 2,242,000 1,617,000     
          deferred income taxes
        1,274,000 4,133,000 10,063,000 174,000 -1,459,000 451,000 -5,136,000 -2,836,000 -2,448,000 -4,954,000 3,410,000 1,565,000 -681,000 -3,293,000 4,191,000 757,000 277,000                                                 
          net accretion of available-for-sale securities
        -435,000 -696,000 -864,000 -993,000 -1,144,000 -1,328,000 -1,242,000 -1,310,000 -1,406,000 -1,080,000 -1,222,000 -1,189,000 -708,000 -613,000                                                    
          changes in operating assets and liabilities:
                                                                         
          accounts receivable
        -17,405,000 -11,902,000 -24,389,000 12,435,000 3,810,000 5,951,000 -3,207,000 18,243,000 25,719,000 -45,365,000 16,319,000 -4,771,000 1,595,000 6,723,000 -14,399,000 1,824,000 -2,733,000 6,710,000 -11,765,000 -5,756,000 -4,989,000 -288,000 -10,540,000 8,545,000 -20,627,000 2,023,000 11,654,000 -4,983,000 11,823,000 645,000 1,865,000 -13,789,000 25,137,000 -36,165,000 9,165,000 10,796,000 -12,852,000 5,919,000 -8,141,000 -5,314,000 3,351,000 1,032,000 -6,203,000 -2,984,000 -8,256,000 12,037,000 4,548,000 -3,195,000 -614,000 10,901,000 8,305,000 7,991,000 -11,198,000 -4,562,000 -1,000 -8,251,000 -197,000 -42,000 10,039,000 -1,887,000 4,177,000     
          inventory
        -20,889,000 -25,755,000 2,540,000 -9,686,000 1,891,000 -2,118,000 12,876,000 6,297,000 13,203,000 17,048,000 3,361,000 3,119,000 -7,353,000 -8,044,000 -42,791,000 6,692,000 -16,137,000 -13,715,000 1,971,000 -4,925,000 -19,943,000 -10,652,000 -4,958,000 -6,120,000 9,614,000 6,203,000 -996,000 1,866,000 2,925,000 -19,884,000 -10,279,000 7,073,000 2,451,000 4,792,000 3,251,000 6,966,000 -1,993,000 -4,355,000 571,000 366,000 6,540,000 -3,898,000 -3,059,000 -73,000 6,115,000 -2,907,000 2,043,000 -828,000 6,011,000 -10,044,000 -1,974,000 1,830,000 4,050,000 -3,121,000 3,068,000 3,914,000 7,447,000 -452,000 -5,663,000 10,891,000 4,406,000     
          prepaid expenses and other assets
        804,000 6,000,000 -2,455,000 10,944,000 2,808,000 3,508,000 1,239,000 6,148,000 272,000 -12,263,000 -22,409,000 -19,040,000 -7,083,000 -5,505,000 -9,586,000 -16,530,000 -6,738,000 -17,298,000 -3,386,000 -5,069,000 -1,321,000 -2,937,000 2,535,000 417,000 758,000 -433,000 -1,327,000 3,632,000 -1,935,000 4,119,000 526,000 1,455,000 -2,521,000 3,162,000 -164,000 812,000 -968,000 4,861,000 -7,452,000 1,970,000 -576,000 -1,292,000 3,116,000 -909,000 1,974,000 -5,593,000 -1,275,000 -56,000 1,016,000 1,001,000 1,543,000 -2,083,000 74,000             
          accounts payable
        26,243,000 21,580,000 -2,355,000 -1,202,000 3,486,000 -3,329,000 11,615,000 -7,451,000 -15,973,000 13,387,000 -13,451,000 -406,000 -5,899,000 -24,059,000 42,230,000 -14,246,000 8,186,000 -2,286,000 -3,607,000 5,762,000 16,156,000 -3,426,000 6,287,000 -10,143,000 9,472,000 -13,393,000 -13,371,000 3,673,000 -6,349,000 9,692,000 5,219,000 7,556,000 -17,871,000 6,216,000 1,812,000 3,455,000 276,000 4,592,000 5,503,000 2,600,000 -8,459,000 2,820,000 -1,750,000 5,745,000 -10,836,000 10,371,000 409,000 1,963,000 -12,276,000 5,090,000 1,359,000 3,041,000 -3,131,000 368,000 -3,811,000 6,114,000 -117,000 2,308,000 1,010,000 -5,068,000 -6,068,000     
          accrued liabilities
        -10,298,000 8,953,000 4,451,000 3,699,000 -14,086,000 7,842,000 -12,981,000 1,269,000 -28,056,000 37,211,000 361,000 8,186,000 -8,688,000 11,094,000 5,603,000 3,420,000 802,000 10,281,000 3,176,000 2,672,000 -12,856,000 8,088,000 -4,034,000 6,501,000 1,367,000 879,000 7,599,000 -8,700,000 -1,614,000 -861,000 6,241,000 -1,784,000 -805,000 -10,052,000 -13,094,000 -4,148,000 7,110,000 20,939,000 4,962,000 541,000 8,471,000 -2,726,000 1,834,000 -2,943,000 54,000 1,920,000 2,919,000 116,000 2,485,000 -2,993,000 -1,688,000 -18,000 482,000 1,229,000 410,000 -2,215,000 -293,000 -3,236,000 -179,000 -5,039,000 8,068,000     
          deferred revenue
        232,000 6,345,000 -1,954,000 -4,906,000 3,158,000 -3,264,000 -3,336,000 -9,648,000 2,348,000 1,176,000 -6,881,000 -2,379,000 11,005,000 6,000 387,000 4,769,000 3,956,000 3,709,000 527,000 802,000 5,362,000 3,938,000 605,000 -3,018,000 2,071,000 -196,000 -626,000 2,504,000 719,000 -1,824,000 -782,000 314,000 866,000 -15,680,000 -13,550,000 -2,341,000 17,201,000 12,015,000 4,060,000 2,518,000 -2,195,000 890,000 2,300,000 39,000 -3,651,000 -6,787,000 -6,084,000 -2,496,000 -5,811,000 -10,106,000 -7,699,000 5,552,000 10,449,000 10,559,000 6,886,000 4,833,000 4,125,000 -1,583,000 -3,338,000 5,366,000 3,772,000     
          other long-term liabilities
        -1,083,000 3,823,000 6,303,000 -839,000 -481,000 -1,246,000 -1,049,000 -987,000 -794,000 -768,000 -982,000 970,000 -3,617,000 1,067,000 -6,024,000 -944,000 -2,777,000 1,931,000 -1,802,000 -368,000 -2,374,000 3,916,000 -312,000 264,000 -990,000 -586,000 -280,000 -800,000 -1,696,000 248,000 -414,000 247,000 -264,000 249,000 244,000 -138,000 -103,000 -99,000 -106,000 -109,000 -98,000 -196,000 -32,000 -76,000 -59,000 -84,000 785,000 -132,000 -56,000 -176,000 -73,000 -131,000 442,000 -149,000 -119,000 -184,000 -330,000 -134,000 74,000 -245,000 -8,000     
          net cash from operating activities
        14,634,000 46,046,000 32,314,000 39,381,000 17,212,000 15,363,000 15,999,000 22,347,000 14,691,000 14,924,000 15,751,000 17,464,000 8,112,000 6,105,000 6,714,000 6,999,000 7,365,000 12,618,000 10,818,000 23,459,000 9,898,000 30,473,000 17,001,000 2,686,000 1,249,000 620,000 7,285,000 -2,878,000 -373,000   3,145,000 -5,823,000 -34,147,000 -7,191,000 2,020,000 -23,454,000 19,159,000 -128,000 119,000 5,269,000 -4,149,000 5,479,000 5,226,000 -11,897,000 23,533,000 15,058,000 4,710,000 -5,226,000 4,011,000 13,607,000 20,820,000 2,380,000 2,861,000 6,710,000 4,590,000 13,517,000 5,850,000 7,813,000 -1,768,000 2,694,000 799,000 8,577,000 -5,258,000 5,058,000 
          capital expenditures
        -8,118,000 -5,765,000 -5,625,000 -3,735,000 -4,310,000 -5,149,000 -3,244,000 -5,952,000 -3,709,000 -3,972,000 -3,776,000 -5,489,000 -4,618,000 -4,807,000 -3,394,000 -2,635,000 -3,231,000 -3,192,000 -3,343,000 -1,654,000 -2,274,000 -2,202,000 -1,137,000 -2,751,000 -1,729,000 -969,000 -2,846,000 -4,499,000 -5,039,000   -1,080,000 -1,875,000 -1,240,000 -2,071,000 -2,609,000 -2,106,000 -4,475,000 -2,286,000 -1,625,000 -1,453,000 -1,335,000 -2,325,000 -1,876,000 -1,742,000 -5,153,000 -2,420,000 -1,908,000 -1,512,000 -2,210,000 -1,939,000 -1,326,000 -2,300,000 -1,583,000 -3,284,000 -3,012,000 -1,084,000 -1,763,000 -2,786,000 -1,722,000 -1,691,000 -1,017,000 -1,425,000 -1,481,000 
          free cash flows
        6,516,000 40,281,000 26,689,000 35,646,000 12,902,000 10,214,000 12,755,000 16,395,000 10,982,000 10,952,000 11,975,000 11,975,000 3,494,000 1,298,000 3,320,000 4,364,000 4,134,000 9,426,000 7,475,000 21,805,000 7,624,000 28,271,000 15,864,000 -65,000 -480,000 -349,000 4,439,000 -7,377,000 -5,412,000   2,065,000 -7,698,000 -35,387,000 -9,262,000 -589,000 -25,560,000 14,684,000 -2,414,000 -1,506,000 3,816,000 -5,484,000 3,154,000 3,350,000 -13,639,000 23,533,000 9,905,000 2,290,000 -7,134,000 2,499,000 11,397,000 18,881,000 1,054,000 561,000 5,127,000 1,306,000 10,505,000 4,766,000 6,050,000 -4,554,000 972,000 -892,000 7,560,000 -6,683,000 3,577,000 
          investing activities
                                                                         
          purchases of property and equipment
        -8,118,000 -5,765,000 -5,625,000 -3,735,000 -4,310,000 -5,149,000 -3,244,000 -5,952,000 -3,709,000 -3,972,000 -3,776,000 -5,489,000 -4,618,000 -4,807,000 -3,394,000 -2,635,000 -3,231,000 -3,192,000 -3,343,000 -1,654,000 -2,274,000 -2,202,000 -1,137,000 -2,751,000 -1,729,000 -969,000 -2,846,000 -4,499,000 -5,039,000 -4,865,000 -2,606,000 -1,080,000 -1,875,000 -1,240,000 -2,071,000 -2,609,000 -2,106,000 -4,475,000 -2,286,000 -1,625,000 -1,453,000 -1,335,000 -2,325,000 -1,876,000 -1,742,000                     
          purchases of marketable securities
        -10,038,000 -53,903,000 -71,820,000 -58,260,000 -36,856,000 -73,221,000 -79,559,000 -113,322,000 -35,575,000 -82,672,000 -27,633,000 -50,980,000 -54,908,000 -49,123,000 -38,994,000 -30,252,000 -73,034,000 -97,583,000 -53,232,000 -93,085,000 -54,192,000 -32,996,000            -8,732,000     -13,252,000 -21,479,000 -8,267,000 -17,004,000                     
          sales of marketable securities
        24,621,000 16,780,000   -3,000 1,171,000                                                         
          maturities of marketable securities
        41,388,000 37,409,000 50,671,000 65,525,000 52,154,000 44,770,000 32,724,000 40,240,000 42,565,000 41,915,000 88,665,000 40,975,000 56,248,000 47,063,000 52,873,000 25,333,000 56,119,000 72,894,000 42,000,000 40,000,000 43,000,000             6,600,000 6,325,000 7,250,000 11,266,000 18,230,000 8,500,000 4,650,000 7,020,000 20,680,000 23,433,000 16,382,000 11,450,000                     
          net cash from investing activities
        47,853,000 -5,479,000 -26,774,000 14,892,000 10,988,000 -33,603,000 -48,908,000 -30,300,000 3,281,000 -44,729,000 57,256,000 -15,494,000 -3,278,000 -6,867,000 10,485,000 -7,554,000 -20,146,000 -27,881,000 -14,575,000 -54,739,000 -13,466,000 -15,198,000   -1,729,000 -969,000 -2,846,000 -4,499,000 -5,039,000 -4,865,000 -2,606,000 -1,080,000 8,475,000 5,360,000 4,254,000 9,692,000 428,000 -2,723,000 6,214,000 3,025,000 5,567,000 6,093,000 -371,000 6,239,000 -7,296,000 -17,222,000 -7,322,000 -48,992,000 -1,908,000 -1,512,000 -2,210,000 -1,939,000 -1,326,000 -14,300,000 -1,583,000 -3,284,000 -3,012,000 916,000 5,087,000 -2,807,000 -39,605,000 40,152,000 1,825,000 -42,058,000 -2,207,000 
          financing activities:
                                                                         
          proceeds from common stock issuances related to employee benefit plans
        19,999,000 24,375,000 16,624,000 13,352,000 10,845,000 6,159,000 10,599,000 4,020,000 10,814,000 5,490,000 8,375,000 5,813,000 12,471,000 5,958,000 6,971,000 8,504,000 6,023,000 6,860,000 5,927,000 4,198,000 8,639,000                                             
          repurchases of common stock
        -170,869,000 -16,620,000 -3,479,000 -33,557,000 -39,974,000 -6,957,000 -3,738,000 -43,988,000 -32,409,000 -8,817,000 -1,183,000                                                     
          net cash from financing activities
        -150,870,000 7,755,000 13,145,000 -20,205,000 -29,129,000 -798,000 10,599,000 4,020,000 7,076,000 -42,616,000 -27,506,000 -6,026,000 10,222,000 4,560,000 6,608,000 8,009,000 5,886,000 6,342,000 5,416,000 3,986,000 8,639,000 614,000 37,027,000 4,426,000 80,000 9,356,000 -1,445,000 -1,550,000 -390,000 3,775,000 -163,000 3,877,000 3,000 4,217,000 29,701,000 -848,000 -1,080,000 2,434,000 -240,000 1,609,000 -13,046,000 -14,414,000 -8,295,000 -1,490,000 58,000 3,198,000 -838,000 1,667,000 -452,000 1,086,000 -1,708,000 2,398,000 42,000 1,013,000 -807,000 2,235,000 72,000 1,911,000 -1,353,000 -6,346,000 154,000 -9,788,000 18,000 -8,926,000 46,291,000 
          effect of exchange rate changes on cash and cash equivalents
        -102,000 -248,000 -211,000 170,000 67,000 -161,000 185,000 1,000 -39,000 155,000 -13,000 57,000 57,000 103,000 -151,000 -307,000 -69,000 39,000 -34,000 30,000 -24,000          -271,000 -395,000 198,000 161,000 126,000 112,000 65,000 -275,000 -127,000 -73,000 -51,000 -98,000 -291,000 79,000 -76,000 -79,000 -42,000 -11,000 8,000 38,000 56,000 41,000 -32,000 -1,000 17,000 -18,000 47,000 12,000 42,000       
          net decrease in cash and cash equivalents
        -88,485,000                                    -24,041,000    -2,261,000  -3,478,000 10,054,000 -19,211,000                     
          cash and cash equivalents at beginning of period
        143,086,000  43,162,000  63,409,000  79,073,000  51,333,000             39,775,000  50,359,000 23,626,000 48,829,000 82,747,000 46,995,000 38,938,000  66,304,000 31,821,000 
          cash and cash equivalents at end of period
        54,601,000  18,474,000 34,238,000 42,300,000  -22,125,000 -3,932,000 88,418,000  45,488,000 -3,999,000 94,186,000  23,656,000 7,147,000 44,369,000  1,625,000            4,858,000 5,547,000 42,628,000  26,890,000 10,976,000 26,318,000 18,595,000 5,719,000 4,680,000 21,365,000 -12,568,000 -3,478,000 10,054,000 29,618,000 9,430,000 6,856,000 -42,626,000 75,169,000 3,623,000 9,745,000 21,320,000 48,059,000 -10,427,000 4,337,000 3,523,000 49,562,000  11,589,000 -10,887,000 29,547,000 31,163,000 10,420,000 -56,242,000 80,963,000 
          investing activities:
                                                                         
          payments related to financing arrangements
                 -4,118,000 -3,472,000 -3,022,000 -1,066,000 -1,398,000 -363,000 -495,000 -137,000 -518,000 -511,000   -3,416,000 -813,000 -687,000 -842,000 -735,000 -735,000 -614,000 -653,000                                     
          net increase in cash and cash equivalents
         48,074,000 18,474,000 34,238,000 -862,000 -19,199,000 -22,125,000 -3,932,000 25,009,000 -72,266,000 45,488,000 -3,999,000 15,113,000 3,901,000 23,656,000 7,147,000 -6,964,000 -8,882,000 1,625,000            4,858,000 5,547,000 2,853,000 -24,409,000 26,890,000   18,595,000 5,719,000       9,430,000 6,856,000 -42,626,000 -7,578,000 3,623,000 9,745,000 21,320,000 1,064,000 -10,427,000 4,337,000 3,523,000 10,624,000 8,689,000   -36,757,000 31,163,000 10,420,000 -56,242,000 49,142,000 
          cash and cash equivalents at beginning of year
                                                                         
          cash and cash equivalents at end of year
                                                                         
          supplemental disclosures of cash flow information:
                                                                         
          interest paid
                                                                         
          income taxes paid
                                                                         
          non-cash investing activities:
                                                                         
          changes in accounts payable and accrued liabilities related to purchases of property and equipment
                                                                         
          net loss
                                -6,944,000 497,000 -3,379,000 -5,045,000 -9,767,000 -5,578,000 809,000 -2,793,000 -11,736,000 -12,866,000 -17,853,000 -18,988,000 -33,325,000 -11,483,000 636,000 -5,826,000 -10,729,000 -9,546,000 922,000 -5,779,000 -11,930,000 -2,988,000 -3,848,000 -3,951,000 -10,027,000 -6,453,000 544,000 -5,153,000 -6,203,000 -6,574,000 -7,140,000 -7,091,000 -7,521,000 -5,214,000 -6,934,000 -17,646,000 -22,756,000     
          adjustments to reconcile net loss to net cash from operating activities:
                                                                         
          asset retirements and write-downs
                             165,000                                           
          proceeds from the sale of common stock in connection with public offering, net of expenses
                                                                         
          proceeds from line of credit
                             30,000,000 30,000,000 24,300,000 59,000,000 30,000,000 153,152,000 116,699,000 124,826,000 163,238,000 102,734,000                                
          payments related to the line of credit
                                                                         
          reversal of valuation allowance on deferred tax assets
                                                                         
          proceeds from the sale of common stock in connection with public offering, net of expense
                                                                         
          repayment of line of credit
                              -26,000,000 -4,000,000 -30,000,000  -25,000,000 -64,000,000 -30,000,000  -116,699,000 -124,826,000 -163,238,000                                 
          payments to originate the line of credit
                             -108,000 -177,000                                        
          net increase in cash, cash equivalents and restricted cash
                            5,047,000 16,353,000 13,274,000   9,271,000 2,616,000 -9,125,000 -5,579,000                                     
          cash, cash equivalents and restricted cash at beginning of period
                            80,807,000  47,457,000  50,274,000                                     
          cash, cash equivalents and restricted cash at end of period
                            85,854,000  13,274,000 4,363,000 46,817,000  2,616,000 -9,125,000 44,695,000                                     
          gain on sale of product line
                                     -6,704,000                                 
          proceeds from sale of product line
                                     10,350,000                                 
          proceeds from exercise of stock options
                             1,243,000 2,133,000 4,509,000 1,099,000 116,000 36,000 290,000 305,000 28,000 43,000 8,000 33,000 16,000 13,000 3,000 14,000 13,000 35,000 26,000 564,000 1,239,000 290,000 118,000 21,000  383,000 246,000 42,000            15,000 
          proceeds from employee stock purchase plans
                             2,787,000 1,644,000   4,276,000   3,491,000 -30,000                                   
          taxes paid for awards vested under equity incentive plan
                                 -1,000 -10,000 -129,000 -27,000 -21,000 -46,000 -2,000 -5,000 -21,000 -113,000                               
          repayments of line of credit
                                                                         
          cash, cash equivalents and restricted cash at beginning of year
                                                                         
          effect of exchange rate changes on cash, cash equivalents and restricted cash
                              369,000 2,000 -240,000 264,000 -378,000 -198,000 223,000                                     
          investing activity –
                                                                         
          cash and cash equivalents:
                                                                         
          cash
                                                                         
          money market funds
                                                                         
          total cash and cash equivalents
                                                                         
          restricted cash
                                                 295,000     677,000    754,000         
          loss on asset retirements
                                 12,000                                        
          net decrease in cash, cash equivalents and restricted cash
                                -640,000                                         
          cash, cash equivalents and restricted cash at end of year
                                                                         
          payments to originate or amend the line of credit
                                                                         
          loss on retirement of property and equipment
                                   43,000 95,000 15,000 64,000 3,000 244,000 132,000 68,000 80,000     10,000 9,000 -5,000 10,000 9,000    5,000 4,000 18,000 542,000 178,000   171,000 657,000       
          amortization of intangible assets
                                         813,000 814,000 813,000 814,000 3,364,000 4,641,000 4,640,000 4,640,000 4,640,000 4,640,000 4,641,000 4,640,000 4,640,000 4,640,000 4,641,000 4,640,000 4,640,000 4,640,000 4,640,000 4,640,000 3,827,000 4,595,000 5,358,000 5,983,000 2,185,000     
          amortization of premium (discount) relating to available-for-sale securities
                                                                         
          payments for repurchases of common stock
                                             -12,809,000 -16,053,000                        
          net cash from (used) in operating activities
                                                                         
          amortization of discount related to available-for-sale securities
                                                                         
          deferred cost of revenue
                                         20,464,000 17,235,000 360,000 -5,691,000 -20,045,000 -7,906,000 -2,704,000 810,000 -1,920,000 -1,714,000 478,000 3,318,000 6,254,000 4,623,000 1,886,000 3,233,000 5,750,000 2,242,000 -2,651,000 -5,340,000 -4,743,000 -4,287,000 -3,273,000 -1,076,000 608,000 1,903,000 -981,000 -2,083,000     
          amortization of premium (discount) related to available-for-sale securities
                                          -4,000                               
          proceeds from employee stock purchase plan
                                            2,745,000   2,023,000   2,174,000   2,364,000   1,841,000           
          amortization of premiums related to available-for-sale securities
                                            -5,000  104,000 119,000 114,000  202,000 254,000 287,000  194,000                   
          taxes paid for awards vested under equity incentive plans
                                            -1,093,000 -314,000 -240,000 -1,296,000 -251,000 -259,000 -583,000 -1,004,000 -506,000 -215,000 -1,128,000                   
          amortization of premiums relating to available-for-sale securities
                                                                 15,000 45,000 76,000 108,000     
          gain on sale of available-for-sale securities
                                                                        
          payments for debt issuance costs
                                                         -15,000                
          supplemental disclosures of cash flow information
                                                                         
          non-cash investing activities
                                                                         
          utilization of inventory credit
                                                                         
          non-cash financing and investing activities
                                                                         
          property and equipment acquired using credits from ericsson inc.
                                                                       
          purchases of treasury stock
                                                                         
          gain on bargain purchase
                                                                         
          acquisitions, net of cash acquired
                                                                         
          purchase of property and equipment
                                                      -5,153,000 -2,420,000 -1,908,000 -1,512,000 -2,210,000 -1,939,000 -1,326,000 -2,300,000 -1,583,000 -3,284,000 -3,012,000 -1,084,000 -1,763,000 -2,786,000 -1,722,000     
          purchase of marketable securities
                                                      -2,784,000               -4,613,000 -18,010,000 -49,133,000 -7,434,000 
          proceeds from sale of marketable securities
                                                                         
          taxes withheld upon vesting of performance restricted stock units
                                                        -473,000                 
          sales and maturities of marketable securities
                                                                    22,905,000  20,852,000 8,500,000 6,708,000 
          proceeds from exercise of stock options and other
                                                             36,000 19,000 67,000 72,000  99,000 513,000 154,000     
          taxes withheld upon vesting of restricted stock units and restricted stock awards
                                                         -1,339,000    -864,000            
          value of common stock issued in acquisition
                                                                 29,000 117,229,000     
          fair value of equity awards assumed in connection with acquisition
                                                                         
          taxes withheld upon vesting of restricted stock units
                                                                 -3,000 -1,452,000       
          revaluation of warrant liability
                                                                         
          net gains on investments
                                                                         
          prepaids and other assets
                                                             -444,000 357,000 -489,000 623,000 2,143,000        
          principal payments on loans
                                                                       
          proceeds from initial public offering of common stock, net of issuance costs
                                                                     18,000 11,064,000 46,229,000 
          issuance of series i preferred stock dividends
                                                                         
          acquisition of occam networks, net of cash acquired
                                                                         
          operating activities
                                                                         
          acquisition of occam networks, net of cash assumed
                                                                 -21,000 -60,788,000     
          financing activities
                                                                         
          fair value of equity awards assumed
                                                                 -716,000 2,086,000     
          change in restricted cash
                                                                         
          proceeds from exercise of stock options and warrants and other
                                                                     216,000   
          proceeds from loans
                                                                         
          proceeds from issuance of series j preferred stock
                                                                        47,000 
          repurchase of common and preferred stock
                                                                         
          supplemental schedule of noncash investing and financing activity
                                                                         
          revaluation of warranty liability
                                                                         
          proceeds from issuance of common stock under employee stock purchase plan
                                                                        
          prepaids and other current assets
                                                                   -2,405,000 1,159,000     
          loss on disposal of property and equipment
                                                                         
          deferred cost of goods sold
                                                                         
          acquisition of property and equipment
                                                                     -1,691,000 -1,017,000 -1,425,000 -1,481,000 
          taxes withheld upon the vesting of rsus
                                                                         
          supplemental schedule of noncash investing and financing activities
                                                                         
          amortization of liability related to early exercise of common stock