7Baggers

Exact Sciences Corporation
(NASDAQ:EXAS) 

EXAS stock logo

Exact Sciences Corporation provides cancer screening and diagnostic test products in the United States and internationally. The company offers Cologuard, a non-invasive stool-based DNA screening test to detect DNA and hemoglobin biomarkers associated with colorectal cancer and pre-cancer. It also pr...

Founded: 1995
Full Time Employees: 6,400 (Dec 2022)
Founder: Stanley Lapidus, Anthony Shuber 
CEO: Kevin Conroy  
Sector: Healthcare
Industry: Diagnostics & Research

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Quarterly
Annual
    Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-09-30 2004-06-30 2004-03-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 2002-03-31 2002-02-10 2001-12-31 2001-09-30 2001-06-30 2000-12-31 
                                                                                                
      revenue
    878,381,000 850,739,000 811,085,000 706,785,000 713,424,000 708,655,000 699,264,000 637,524,000 646,885,000 628,338,000 622,093,000 602,450,000 552,995,000 523,073,000 521,640,000 486,571,000 473,812,000 456,379,000 434,819,000 402,077,000 466,339,000 408,363,000 268,868,000 347,821,000 295,575,000 218,805,000 199,870,000 162,043,000                                                      406,000 408,000 122,175.25 409,479 39,956 39,266 39,956 3,272.25 13,089   
      yoy
    23.12% 20.05% 15.99% 10.86% 10.29% 12.78% 12.41% 5.82% 16.98% 20.12% 19.26% 23.82% 16.71% 14.61% 19.97% 21.01% 1.60% 11.76% 61.72% 15.60% 57.77% 86.63% 34.52% 114.65%                                                          916.12% 939.07% 205.77% 12413.68% 205.26%       
      qoq
    3.25% 4.89% 14.76% -0.93% 0.67% 1.34% 9.68% -1.45% 2.95% 1.00% 3.26% 8.94% 5.72% 0.27% 7.21% 2.69% 3.82% 4.96% 8.14% -13.78% 14.20% 51.88% -22.70% 17.68% 35.09% 9.47% 23.34%                                                       -0.49% 233.95% -70.16% 924.82% 1.76% -1.73% 1121.06% -75.00%    
      cost of sales
    262,555,000 266,810,000 248,632,000 206,238,000 284,131,000 196,070,000 189,848,000 170,101,000 171,865,000 168,526,000 156,991,000 156,866,000 147,152,000 147,937,000 144,600,000 134,705,000 119,058,000 115,738,000 113,968,000 109,993,000 99,765,000 95,061,000 77,892,000 81,606,000 69,143,000 52,759,000 51,563,000 43,252,000 38,160,000 30,020,000 26,888,000 22,914,000 23,495,000 20,729,000 17,991,000 16,981,000 13,865,000 12,174,000 10,097,000 9,059,000 7,667,000 7,528,000 5,094,000 4,212,000 3,401,000 924,000                                               
      gross profit
    615,826,000 583,929,000 562,453,000 500,547,000                                                1,036,000 1,036,000 1,036,000 1,033,000 1,036,000 1,034,000 1,350,000 1,308,000 1,293,000 1,251,000 1,250,000 1,000,000   50,000 67,000 1,114,000 1,168,000 1,154,000 1,053,000 1,128,000 606,000 1,131,000 863,000 491,000 1,199,000 1,038,000 1,162,000 1,145,000 905,000  405,000 120,566.5 405,321        
      yoy
                                                       0.00% 0.19% -23.26% -21.02% -19.88% -17.35% 8.00% 30.80%   2400.00% 1392.54%   -95.67% -93.64% -1.24% 92.74% 2.03% 22.02% 129.74% -49.46% 8.96% -25.73% -57.12% 32.49%  186.91% 849.68% 123.28%            
      qoq
    5.46% 3.82% 12.37%                                                 0.00% 0.00% 0.29% -0.29% 0.19% -23.41% 3.21% 1.16% 3.36% 0.08% 25.00%    -25.37% -93.99% -4.62% 1.21% 9.59% -6.65% 86.14% -46.42% 31.05% 75.76% -59.05% 15.51% -10.67% 1.48% 26.52%   235.91% -70.25%         
      gross margin %
    70.11% 68.64% 69.35% 70.82% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% NaN% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 0% 99.26% 98.68% 98.98% 0% 0% 0% 0% 0% NaN%  
      operating expenses
                                                                                                
      research and development
    191,495,000 117,290,000 108,901,000 105,310,000 99,617,000 100,101,000 120,884,000 110,608,000 114,922,000 111,446,000 104,095,000 95,419,000 94,274,000 90,813,000 106,083,000 102,248,000 88,488,000 75,356,000 106,235,000 115,567,000 446,399,000 31,471,000 32,673,000 43,509,000 42,530,000 34,945,000 30,203,000 32,016,000 20,932,000 17,631,000 14,712,000 14,935,000 12,675,000 11,725,000 9,737,000 8,002,000 7,082,000 7,625,000 8,640,000 10,126,000 9,365,000 9,863,000 8,115,000 6,571,000 4,992,000 9,073,000 7,174,000 7,430,000 6,982,000 6,457,000 7,526,000 10,491,000 12,202,000 8,999,000 6,110,000 5,197,000 2,989,000 2,635,000 2,123,000 1,795,000 837,000 2,015,000 108,000 577,000 528,000 859,000 1,009,000 1,332,000 1,277,000 1,152,000 1,705,000 1,918,000 1,960,000 1,750,000 1,937,000 1,875,000 2,281,000 2,518,000 2,640,000 3,134,000 4,312,000 4,592,000 5,013,000 3,809,827 5,130,706 5,065,822 5,042,780 5,065,822 2,231,847.5 3,535,013 2,849,562  
      sales and marketing
    288,527,000 250,228,000 247,118,000 264,310,000 321,837,000 194,653,000 185,270,000 192,365,000 190,477,000 173,159,000 176,490,000 186,964,000 210,211,000 187,697,000 215,922,000 232,181,000 284,304,000 196,617,000 194,827,000 186,141,000 166,827,000 136,481,000 118,862,000 167,749,000 119,851,000 86,196,000 88,190,000 90,939,000 76,773,000 64,836,000 54,431,000 53,408,000 40,627,000 37,768,000 36,728,000 38,801,000 30,506,000 26,308,000 30,301,000 25,711,000 21,944,000 23,079,000 20,593,000 16,524,000 15,069,000 13,217,000 6,166,000 4,456,000 1,615,000 3,302,000 1,759,000 1,006,000 1,331,000 594,000 815,000 651,000 297,000 315,000 330,000 109,000 12,000 40,000     385,000 510,000 495,000 624,000 1,051,000 1,272,000 1,486,000 1,209,000 1,191,000 1,619,000 1,599,000                
      general and administrative
    217,993,000 241,413,000 208,582,000 220,686,000 119,651,000 217,201,000 201,856,000 243,117,000 220,551,000 217,393,000 237,965,000 217,295,000 193,894,000 191,968,000 181,672,000 169,770,000 179,365,000 186,541,000 167,629,000 267,727,000 145,451,000 115,589,000 106,685,000 113,991,000 144,124,000 80,565,000 63,734,000 64,030,000 56,432,000 46,729,000 39,565,000 35,567,000 33,598,000 30,763,000 24,609,000 20,070,000 21,498,000 20,292,000 17,284,000 17,824,000 15,864,000 15,432,000 13,683,000 12,971,000 10,625,000 8,994,000 6,230,000 4,586,000 3,686,000 3,628,000 2,648,000 2,547,000 2,393,000 2,145,000 1,951,000 1,830,000 2,150,000 1,796,000 1,339,000 1,512,000 1,478,000 1,638,000 4,768,000 1,271,000 1,495,000 1,835,000 2,290,000 1,337,000 1,542,000 1,431,000 1,700,000 1,497,000 1,641,000 953,000 1,395,000 1,157,000 1,221,000         427,026  427,026 573,390.25 654,085 2,606,416  
      impairment of long-lived and indefinite-lived assets
    406,000 543,000  6,251,000                                                                                         
      total operating expenses
    698,421,000 609,474,000 564,601,000 596,557,000 752,193,000 751,158,000 729,321,000 743,948,000 721,126,000 693,516,000 699,022,000 679,541,000 671,877,000 647,887,000 681,224,000 663,558,000 695,262,000 618,402,000 606,483,000 702,618,000 881,641,000 611,698,000 359,542,000 430,194,000 539,257,000 201,706,000 182,127,000 186,985,000 154,137,000 129,196,000 108,708,000 103,910,000 86,900,000 80,256,000 71,074,000 66,873,000 59,086,000 54,225,000 56,225,000 53,661,000 47,173,000 48,374,000 42,391,000 36,066,000                                                 
      other operating income
        2,568,000 3,100,000 3,800,000  6,400,000 72,027,000             23,665,000                                                                      
      income from operations
    -82,595,000 -25,545,000 -2,148,000 -96,010,000 -876,351,000 -39,403,000 -26,257,000 -106,692,000 -67,841,000 6,849,000 -76,929,000 -77,091,000 -118,882,000 -138,058,000 -159,584,000 -176,987,000 -221,450,000 -162,023,000 -171,664,000 -300,541,000 -415,302,000 -203,335,000 -67,009,000 -82,373,000 -96,108,000 -35,660,000 -33,820,000 -68,194,000 -49,316,000 -40,925,000 -32,702,000 -36,528,000 -22,989,000 -28,411,000 -31,419,000 -35,491,000 -37,710,000 -38,284,000 -45,137,000 -47,885,000 -40,420,000 -43,270,000 -39,366,000 -36,012,000                                                 
      yoy
    -90.58% -35.17% -91.82% -10.01% 1191.77% -675.31% -65.87% 38.40% -42.93% -104.96% -51.79% -56.44% -46.32% -14.79% -7.04% -41.11% -46.68% -20.32% 156.18% 264.85% 332.12% 470.20% 98.13% 20.79% 94.88% -12.86% 3.42% 86.69% 114.52% 44.05% 4.08% 2.92% -39.04% -25.79% -30.39% -25.88% -6.70% -11.52% 14.66% 32.97%                                                     
      qoq
    223.33% 1089.25% -97.76% -89.04% 2124.07% 50.07% -75.39% 57.27% -1090.52% -108.90% -0.21% -35.15% -13.89% -13.49% -9.83% -20.08% 36.68% -5.62% -42.88% -27.63% 104.25% 203.44% -18.65% -14.29% 169.51% 5.44% -50.41% 38.28% 20.50% 25.15% -10.47% 58.89% -19.08% -9.57% -11.47% -5.88% -1.50% -15.18% -5.74% 18.47% -6.59% 9.92% 9.31%                                                  
      operating margin %
    -9.40% -3.00% -0.26% -13.58% -122.84% -5.56% -3.75% -16.74% -10.49% 1.09% -12.37% -12.80% -21.50% -26.39% -30.59% -36.37% -46.74% -35.50% -39.48% -74.75% -89.06% -49.79% -24.92% -23.68% -32.52% -16.30% -16.92% -42.08% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% 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% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN%  
      other income
                                                                                                
      investment income
    7,271,000 17,577,000 11,926,000 4,997,000 9,962,000 11,582,000 11,801,000 6,213,000 25,330,000 2,065,000 4,828,000 490,000 -5,635,000 -8,584,000 -3,719,000 -1,487,000 1,254,000 -4,093,000 3,429,000 31,188,000 1,365,000 2,523,000 2,912,000 97,000 3,113,000 9,093,000 7,669,000 6,655,000 6,321,000 6,292,000 4,917,000 3,673,000 1,320,000 1,334,000 683,000 595,000 592,000 535,000 425,000 466,000 491,000 365,000 193,000 222,000 150,000 160,000 146,000 86,000 103,000 55,000 62,000 67,000 59,000                                        
      interest expense
    -9,759,000 -9,789,000  -9,978,000 -9,577,000 -9,607,000   -7,865,000 -7,871,000 -7,818,000  -5,410,000 -5,235,000 -4,511,000 -4,478,000 -4,658,000 -4,680,000 -4,652,000 -4,616,000 -24,336,000 -23,582,000 -22,912,000 -25,153,000 -13,688,000 -13,209,000 -12,712,000 -21,990,000 -10,972,000 -10,704,000 -8,603,000 -6,510,000 -51,000 -51,000 -54,000 -50,000    -54,000    -11,000                                                 
      total other income
    -2,488,000 7,788,000 2,091,000 -4,981,000 385,000 1,975,000 11,912,000 -1,730,000 17,465,000 -5,806,000 -2,990,000 4,597,000 -11,045,000 -13,819,000 -8,230,000 -5,965,000 -3,404,000 -8,773,000 -1,223,000 26,572,000 -22,971,000 -21,059,000 -20,000,000 -25,056,000     -4,651,000 -4,412,000 -3,686,000 -2,837,000 1,269,000 1,283,000 629,000 545,000 540,000 481,000 372,000 412,000 429,000 325,000 300,000 211,000                                                 
      net loss before tax
    -85,083,000 -17,757,000 -57,000 -100,991,000   -14,345,000 -108,422,000   -79,919,000 -72,494,000 -129,927,000 -151,877,000 -167,814,000 -182,952,000 -224,854,000 -170,796,000 -172,887,000 -273,969,000 -438,273,000 -224,394,000 -87,009,000 -107,429,000 -106,683,000 -39,776,000 -38,863,000 -83,529,000 -53,967,000 -45,337,000 -36,388,000 -39,365,000 -21,720,000 -27,128,000                                                           
      income tax expense
    -797,250 -1,837,000 -1,128,000 -224,000 -1,019,250 -808,000 -1,463,000 -1,806,000                        -59,000                                                             
      net income
    -85,955,000 -19,594,000 -1,185,000 -101,215,000 -864,585,000 -38,236,000 -15,808,000 -110,228,000 -49,766,000 794,000 -81,026,000 -74,151,000 -127,745,000 -148,761,000 -166,063,000 -180,937,000 -220,611,000 -166,938,000 -176,912,000 -31,164,000 -436,810,000 -219,884,000 -86,142,000 -105,697,000 77,945,000 -40,459,000 -38,420,000 -83,059,000 -53,974,000 -45,364,000 -36,387,000 -39,424,000 -21,764,000 -26,897,000 -30,790,000 -34,946,000 -37,170,000 -37,803,000 -44,765,000 -47,473,000 -39,991,000 -42,945,000 -39,066,000 -35,801,000 -32,444,000 -32,060,000 -19,437,000 -16,107,000 -11,160,000 -12,314,000 -10,854,000 -12,952,000 -14,836,000 -10,645,000 -7,773,000 -6,625,000 -4,373,000 -3,382,000 -2,477,000 -2,124,000 -1,041,000 -2,394,000 -3,839,000 -3,014,000 -2,100,000 -2,518,000 -4,195,000 -1,825,000 -1,920,000 -2,423,000 -3,083,000 -3,246,000 -4,163,000 -2,695,000 -3,289,000 -3,951,000 -4,585,000 -4,403,000 -4,279,000 -5,291,000 -6,862,000 -7,884,000 -7,883,000 -5,718,584.5 -7,413,676 -7,874,777 -7,585,885 -7,874,777 -4,210,130.25 -5,729,378 -5,710,984  
      yoy
    -90.06% -48.76% -92.50% -8.18% 1637.30% -4915.62% -80.49% 48.65% -61.04% -100.53% -51.21% -59.02% -42.09% -10.89% -6.13% 480.60% -49.49% -24.08% 105.37% -70.52% -660.41% 443.47% 124.21% 27.26% -244.41% -10.81% 5.59% 110.68% 148.00% 68.66% 18.18% 12.81% -41.45% -28.85% -31.22% -26.39% -7.05% -11.97% 14.59% 32.60% 23.26% 33.95% 100.99% 122.27% 190.72% 160.35% 79.08% 24.36% -24.78% 15.68% 39.64% 95.50% 239.26% 214.75% 213.81% 211.91% 320.08% 41.27% -35.48% -29.53% -50.43% -4.92% -8.49% 65.15% 9.38% 3.92% 36.07% -43.78% -53.88% -10.09% -6.26% -17.84% -9.20% -38.79% -23.14% -25.33% -33.18% -44.15% -45.72% -7.48% -7.44% 0.12% 3.92% -27.38% 76.09% 37.45% 32.83%      
      qoq
    338.68% 1553.50% -98.83% -88.29% 2161.18% 141.88% -85.66% 121.49% -6367.76% -100.98% 9.27% -41.95% -14.13% -10.42% -8.22% -17.98% 32.15% -5.64% 467.68% -92.87% 98.65% 155.26% -18.50% -235.60% -292.65% 5.31% -53.74% 53.89% 18.98% 24.67% -7.70% 81.14% -19.08% -12.64% -11.89% -5.98% -1.67% -15.55% -5.70% 18.71% -6.88% 9.93% 9.12% 10.35% 1.20% 64.94% 20.67% 44.33% -9.37% 13.45% -16.20% -12.70% 39.37% 36.95% 17.33% 51.50% 29.30% 36.54% 16.62% 104.03% -56.52% -37.64% 27.37% 43.52% -16.60% -39.98% 129.86% -4.95% -20.76% -21.41% -5.02% -22.03% 54.47% -18.06% -16.76% -13.83% 4.13% 2.90% -19.13% -22.89% -12.96% 0.01% 37.85% -22.86% -5.86% 3.81% -3.67% 87.04% -26.52% 0.32%   
      net income margin %
    -9.79% -2.30% -0.15% -14.32% -121.19% -5.40% -2.26% -17.29% -7.69% 0.13% -13.02% -12.31% -23.10% -28.44% -31.83% -37.19% -46.56% -36.58% -40.69% -7.75% -93.67% -53.85% -32.04% -30.39% 26.37% -18.49% -19.22% -51.26% -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% -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% -1941.87% -1932.11% -4680.64% -1810.51% -19708.62% -19319.22% -19708.62% -128661.63% -43772.47% -Infinity%  
      net income per share
    -0.45 -0.1 -0.01 -0.54 -4.7 -0.21 -0.09 -0.6 -0.27  -0.45 -0.42 -0.72 -0.84 -0.94 -1.04 -1.29 -0.97 -1.03 -0.18 -2.85 -1.46 -0.58 -0.71 0.62 -0.31 -0.3 -0.66 -0.44 -0.37 -0.3 -0.33 -0.18 -0.23 -0.27 -0.32 -0.33 -0.36 -0.46 -0.49 -0.41 -0.45 -0.44 -0.4 -0.39 -0.39 -0.24 -0.23 -0.16 -0.19 -0.17 -0.21 -0.26 -0.19 -0.15 -0.13 -0.08 -0.08 -0.06 -0.06 -0.03 -0.08 -0.13 -0.11 -0.08 -0.09 -0.16 -0.07 -0.07 -0.09 -0.12 -0.12 -0.16 -0.1 -0.13 -0.15 -0.17 -0.17 -0.16  -0.36 -0.42 -0.42          
      weighted-average common shares outstanding—basic and diluted
    188,688 189,262 188,902 186,813 184,197  184,313 182,350 180,144  180,204 178,574 176,351 176,997 176,364 174,417 171,348 171,978 171,494 169,434 151,137 150,155 149,727 148,151 131,257 129,567 129,182 126,248 122,207 122,671 122,129 121,016 115,684 119,215 112,847 110,582 102,335 104,807 97,902 97,246 92,135 94,444 88,919 88,662 80,232 82,941 82,048 70,987 70,559 64,699 63,836 60,531 57,037 56,718 52,443 52,010 51,930 40,155 39,067    30,230 27,233 27,175 27,145 27,017 26,880 26,790 26,509 26,562 26,402 26,376 26,270 26,291 26,251 26,203                
      interest income
      -9,835,000    111,000 -7,943,000    4,107,000                         -40,250 -54,000 -53,000  14,000 -40,000 107,000           62,000 75,000 22,000 29,000 14,000 7,000  35,000 49,000 34,000 36,000 64,000 124,000 210,000 238,000 259,000 301,000 320,000 313,000 318,000 317,000 290,000 261,000 246,000 177,000 172,000 118,000 103,000 126,000 167,000 189,499.5 251,312 231,455 275,231 231,455 550,127.5 623,128 799,725  
      other operating loss
           -268,000     -3,311,000 -13,244,000                                                                               
      amortization of acquired intangible assets
        17,764,250 24,435,000 23,311,000 23,311,000 23,311,000 22,992,000 22,929,000 22,928,000 22,914,000 23,526,000 26,356,000 24,654,000 24,047,000 23,940,000 23,824,000 23,190,000 23,199,000 23,430,000 23,430,000 23,339,000                                                                     
      impairment of long-lived assets
        7,824,000 18,698,000 8,152,000 4,446,000   552,000 69,000 3,432,000 5,946,000                                                                               
      net income before tax
        -40,048,750 -37,428,000   -37,842,500 1,043,000                                                                                   
      weighted-average common shares outstanding—basic
         184,795    180,649                                                                                   
      weighted-average common shares outstanding—diluted
         184,795    184,075                                                                                   
      income tax benefit
            610,000 -249,000 -1,107,000 -1,657,000 2,182,000 3,116,000 1,751,000 2,015,000 4,243,000 3,858,000 -4,025,000 242,805,000 1,463,000 4,510,000 867,000 1,732,000 184,628,000 -683,000 443,000 470,000 -7,000 -27,000 1,000  -44,000 231,000                                                           
      intangible asset impairment charge
                  6,591,000   20,210,000    209,666,000                                                                       
      gross margin
                            108,286,000 166,046,000 148,307,000 118,791,000 104,821,000 88,271,000 76,006,000 67,382,000 63,911,000 51,845,000 39,655,000 31,382,000 21,376,000 15,941,000 11,088,000 5,776,000 6,753,000 5,104,000 3,025,000 54,000                                      406,000    38,051 38,894 38,051     
      operating expenses:
                                                                                                
      total other expense
                            -6,123,500 -4,116,000 -5,043,000 -15,335,000                                                                 
      laboratory service revenue
                                77,870,250 118,291,000 102,894,000 90,296,000 87,406,000 72,574,000 57,646,000 48,363,000 35,241,000 28,115,000 21,185,000 14,835,000 14,420,000 12,632,000 8,119,000 4,266,000                                                 
      license fees
                                                   294,000 1,036,000 1,036,000 1,036,000 1,036,000 1,036,000 1,036,000 1,035,000 1,036,000 1,036,000 1,351,000 1,307,000 1,287,000 1,247,000 1,247,000 993,000 337,000 338,000 338,000 338,000 1,091,000 1,091,000 1,090,000 1,091,000 1,091,000 1,091,000 1,091,000 1,111,000 498,000 1,128,000 1,128,000 1,129,000 1,128,000 905,000            
      total revenue
                                            14,420,000 12,632,000 8,119,000 4,266,000                                                 
      operating expenses: - sum
                                                17,062,500 32,208,000 19,570,000 16,472,000 12,283,000 13,387,000 11,933,000  15,926,000 11,738,000 8,876,000 7,678,000 5,436,000 4,746,000 3,792,000 3,416,000 2,327,000 3,693,000  2,387,000   4,472,000  3,347,000 3,878,000 4,456,000 4,687,000 5,087,000   4,703,000 6,030,000 5,618,000 5,613,000 6,554,000 7,870,000 8,416,000 8,455,000 6,028,650.5 8,070,309 8,144,283       
      revenue:
                                                                                                
      product royalty fees
                                                          4,000 6,000 4,000 5,000 7,000 12,000 9,000 11,000 7,000 -1,000,000 -495,000 -292,000 -239,000 19,000 26,000 17,000 40,000 61,000 61,000 41,000 51,000 46,000 68,000 41,000 35,000 22,000             
      cost of revenue:
                                                                                                
      revenue: - sum
                                                        1,036,000 1,036,000 1,039,000 1,042,000 1,040,000 1,356,000 1,314,000 1,299,000 1,256,000 1,258,000 1,000,000   51,000 113,000 1,115,000 1,170,000 1,180,000 1,155,000 1,221,000 1,194,000 1,185,000 1,195,000 623,000 1,247,000 1,261,000 1,222,000 1,177,000             
      restructuring
                                                                   539,000   788,000  33,000        626,000                
      weighted average common shares outstanding—basic and diluted
                                                               35,607                                 
      product
                                                                    11,000 5,000 14,000 5,000 53,000 73,000 24,000 69,000 42,000 53,000 33,000 79,000 51,000 92,000 58,000 27,000             
      weighted average common shares outstanding - basic and diluted
                                                                34,932 31,283                               
      non-cash stock-based compensation expense included in these amounts are as follows:
                                                                                                
      cost of revenue: - sum
                                                                      46,000 1,000 2,000 26,000 102,000 93,000 588,000 54,000 332,000 132,000 48,000                
      non-cash stock-based compensation expense
                                                                                                
      included in these amounts are as follows:
                                                                                                
      total
                                                                           709  68.5 -81      329 330    544,052  544,052 743,138.5 865,887 1,054,731  
      stock-based compensation
                                                                             231,000  52,000 303,000 154,000 120,000 126,000 329,000 330,000 328,000 413,930.75 543,870 544,052 567,801 544,052 743,138.5 865,887 1,054,731  
      the following summarizes the departmental allocation of stock-based compensation:
                                                                                                
      cost of revenues:
                                                                                                
      cost of revenues: - sum
                                                                                 223,000  32,000             
      selling, general and administrative
                                                                                 2,946,000 2,853,000 3,294,000 3,229,000 3,494,000 3,114,000 1,804,892.75 2,395,733 2,534,409 2,289,429 2,534,409 1,788,544 1,964,695   
      weighted-average common shares outstanding - basic and diluted
                                                                                 26,138  22,949   18,808  18,550,699        
      weighted-average common shares outstanding – basic and diluted
                                                                                  26,081              
      product revenue
                                                                                    13,000            
      revenue - sum
                                                                                    918,000            
      cost of product revenues
                                                                                    13,000            
      weighted-average common shares outstanding:
                                                                                                
      basic and diluted
                                                                                    19,024 18,801     18,165,019    17,817,844  
      cost of revenues
                                                                                      3,000 1,608.75 4,158 1,905 372 1,905     
      net income per share
    -0.45 -0.1 -0.01 -0.54 -4.7 -0.21 -0.09 -0.6 -0.27  -0.45 -0.42 -0.72 -0.84 -0.94 -1.04 -1.29 -0.97 -1.03 -0.18 -2.85 -1.46 -0.58 -0.71 0.62 -0.31 -0.3 -0.66 -0.44 -0.37 -0.3 -0.33 -0.18 -0.23 -0.27 -0.32 -0.33 -0.36 -0.46 -0.49 -0.41 -0.45 -0.44 -0.4 -0.39 -0.39 -0.24 -0.23 -0.16 -0.19 -0.17 -0.21 -0.26 -0.19 -0.15 -0.13 -0.08 -0.08 -0.06 -0.06 -0.03 -0.08 -0.13 -0.11 -0.08 -0.09 -0.16 -0.07 -0.07 -0.09 -0.12 -0.12 -0.16 -0.1 -0.13 -0.15 -0.17 -0.17 -0.16  -0.36 -0.42 -0.42          
      basic and diluted
                                                                                       -0.313 -0.4 -0.43 -0.42 -0.43 -0.263 -0.32 -0.32  
      weighted-average common shares
                                                                                                
      outstanding - basic and diluted
                                                                                         18,376,369  18,376,369     
      pro forma basic and diluted
                                                                                            -0.2 -0.27 -0.26  
      weighted average common shares outstanding:
                                                                                                
      basic and diluted
                                                                                             17,886,920   
      excludes non-cash stock-based compensation.
                                                                                                
      assumes conversion of all outstanding shares of preferred stock into common stock effective january 1, 2001.
                                                                                                
      assumes conversion of all outstanding shares of preferred stock into common stock.
                                                                                                
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 2002-03-31 2001-12-31 2001-09-30 2001-06-30 
                                                                                                    
        assets
                                                                                                    
        current assets:
                                                                                                    
        cash and cash equivalents
      955,996,000 789,037,000 657,099,000 347,127,000 600,889,000 588,830,000 530,180,000 347,487,000 605,378,000 594,612,000 604,363,000 421,365,000 242,493,000 235,306,000 213,421,000 189,776,000 315,471,000 273,779,000 363,715,000 1,103,816,000 1,491,288,000 806,678,000 703,926,000 701,054,000 177,254,000 1,034,334,000 205,058,000 285,200,000 160,430,000 161,705,000 225,662,000 148,695,000 77,491,000 50,837,000 180,407,000 39,206,000 48,921,000 63,445,000 49,010,000 52,151,000 41,135,000 31,522,000 33,765,000 40,679,000 58,131,000 27,829,000 20,708,000 17,806,000 9,710,000 21,518,000 8,053,000 12,660,000 6,026,000 12,292,000  4,995,000 38,264,000 72,073,000 20,815,000 24,232,000 18,171,000 22,779,000 12,288,000 3,595,000 6,069,000 5,504,000 3,999,000  7,164,000 3,835,000 3,851,000 4,831,000 7,991,000 13,832,000 10,391,000 13,007,000 17,124,000 17,625,000 9,333,000 24,179,000 16,553,000 13,845,000 24,179,000  16,105,000 14,736,000 11,783,000  24,415,727 57,959,942 50,195,303  62,636,543 67,232,921 
        marketable securities
      8,715,000 214,058,000 201,336,000 439,048,000 437,137,000 432,301,000 416,602,000 304,606,000 172,266,000 139,794,000 171,349,000 277,282,000 389,564,000 433,808,000 514,623,000 627,204,000 715,005,000 944,688,000 943,864,000 274,151,000 348,699,000 476,324,000 518,731,000 530,062,000 146,401,000 126,211,000 1,034,364,000 997,506,000 963,752,000 1,023,512,000 996,500,000 893,474,000 347,224,000 411,684,000 303,853,000 235,464,000 262,179,000 274,385,000 175,067,000 210,441,000 265,744,000 311,987,000 177,053,000 204,472,000 224,625,000 183,315,000 214,089,000 98,204,000 138,131,000 136,211,000 87,429,000 105,912,000 64,839,000 71,244,000  70,436,000 45,204,000 17,660,000 14,026,000 13,092,000 4,221,000 4,165,000 15,510,000 17,018,000  2,244,000 5,488,000  7,611,000 13,108,000 14,708,000 16,244,000 16,384,000 13,208,000 19,395,000 21,112,000 20,101,000 22,916,000 35,001,000 41,190,000 38,604,000 46,253,000 41,190,000  19,221,000 12,386,000 23,302,000        
        accounts receivable
      298,653,000 306,051,000 353,335,000 279,800,000 248,968,000 264,819,000 263,865,000 240,584,000 203,623,000 199,403,000 178,317,000 183,371,000 158,043,000 189,206,000 186,542,000 205,625,000 216,645,000 249,572,000 226,539,000 256,135,000 233,185,000 206,606,000 163,608,000 140,046,000 130,667,000 82,200,000 63,903,000 56,095,000 44,239,000 41,916,000 36,268,000 34,575,000 26,419,000 24,553,000 22,591,000 16,214,000 8,526,000 7,863,000 7,441,000 5,621,000 4,933,000 4,209,000 2,151,000 1,581,000 1,376,000                                                  
        inventory
      166,201,000 164,784,000 171,499,000 176,574,000 162,383,000 136,987,000 127,373,000 128,534,000 127,475,000 132,841,000 130,770,000 124,092,000 118,259,000 114,699,000 115,172,000 112,958,000 104,994,000 95,167,000 89,809,000 89,033,000 92,265,000 80,427,000 82,215,000 69,424,000 61,724,000 53,673,000 47,781,000 44,269,000 39,148,000 38,617,000 35,409,000 32,380,000 26,027,000 18,064,000 12,410,000 7,859,000 6,833,000 7,666,000 8,404,000 8,157,000 6,677,000 6,032,000 6,275,000 5,423,000 4,017,000 2,719,000                                                 
        prepaid expenses and other current assets
      126,284,000 116,796,000 124,590,000 127,792,000 122,046,000 110,180,000 114,467,000 99,059,000 85,627,000 81,536,000 89,129,000 85,274,000 73,898,000 75,487,000 71,875,000 79,575,000 74,122,000 52,385,000 45,284,000 52,167,000 33,157,000 36,592,000 36,378,000 43,732,000 40,913,000 23,560,000 23,690,000 24,050,000 20,498,000 23,832,000 16,465,000 12,867,000 10,055,000 8,551,000 6,872,000 7,443,000 7,114,000 5,673,000 7,295,000 7,722,000 7,641,000 5,602,000 4,019,000 3,892,000 3,528,000 2,377,000 3,987,000 2,842,000 904,000 1,087,000 1,067,000 1,252,000 2,347,000 1,918,000  867,000 611,000 468,000 339,000 533,000 606,000 405,000 426,000 690,000 255,000 402,000 453,000  281,000 356,000 540,000 386,000 517,000 895,000 1,213,000 1,158,000 1,216,000 1,945,000 2,112,000                
        total current assets
      1,555,849,000 1,590,726,000 1,507,859,000 1,370,341,000 1,571,423,000 1,533,117,000 1,452,487,000 1,120,270,000 1,194,369,000 1,148,186,000 1,173,928,000 1,091,384,000 982,257,000 1,048,506,000 1,101,633,000 1,215,138,000 1,426,237,000 1,615,591,000 1,669,211,000 1,775,302,000 2,198,594,000 1,606,627,000 1,504,858,000 1,484,318,000 556,959,000 1,319,978,000 1,374,796,000 1,407,120,000 1,228,067,000 1,289,582,000 1,310,304,000 1,121,991,000 487,216,000 513,689,000 526,133,000 306,186,000 333,573,000 359,032,000 247,217,000 284,092,000 326,130,000 359,352,000 223,263,000 256,047,000 291,677,000 216,240,000 238,784,000 118,852,000 148,745,000 158,816,000 96,549,000 119,824,000 73,212,000 85,454,000  76,298,000 84,079,000 90,201,000 35,180,000 38,357,000 23,498,000 27,349,000 28,224,000 21,303,000 6,324,000 8,150,000 9,940,000  15,056,000 17,299,000 19,099,000 21,461,000 24,892,000 27,935,000 30,999,000 35,277,000 38,441,000 42,486,000 46,446,000 67,233,000 56,918,000 62,121,000 67,233,000  36,763,000 28,576,000 36,890,000  52,328,977 59,143,088 51,465,636  63,844,356 67,658,848 
        long-term assets:
                                                                                                    
        property, plant and equipment
      708,664,000 704,065,000 705,105,000 697,907,000 693,673,000 690,332,000 703,083,000 702,041,000 698,354,000 692,404,000 686,602,000 684,574,000 684,756,000 670,506,000 663,653,000 622,613,000 580,248,000 524,200,000 501,908,000 482,736,000 450,683,000 456,455,000 463,437,000 465,476,000 455,325,000 370,532,000 335,499,000 291,629,000 245,259,000 188,486,000 140,467,000 103,448,000                                                               
        operating lease right-of-use assets
      122,332,000 121,114,000 126,106,000 126,659,000 116,952,000 122,452,000 139,807,000 142,017,000 143,708,000 149,671,000 148,690,000 156,782,000 167,003,000 175,945,000 182,494,000 170,373,000 174,225,000 167,911,000 166,914,000 161,687,000 125,947,000 129,837,000 132,751,000 124,369,000 126,444,000                                                                      
        goodwill
      2,368,048,000 2,368,028,000 2,368,021,000 2,367,111,000 2,366,676,000 2,367,450,000 2,366,972,000 2,367,052,000 2,367,120,000 2,366,514,000 2,346,248,000 2,346,235,000 2,346,040,000 2,345,180,000 2,345,922,000 2,335,172,000 2,335,172,000 2,242,535,000 2,242,535,000 2,183,915,000 1,237,672,000 1,237,672,000 1,237,672,000 1,237,161,000 1,203,197,000                                                                      
        intangible assets
      919,925,000 941,200,000 965,370,000 988,873,000 1,009,693,000 1,864,399,000 1,843,478,000 1,866,856,000 1,890,396,000 1,913,307,000 1,910,559,000 1,933,481,000 1,956,240,000 1,977,690,000 2,046,773,000 2,069,757,000 2,094,411,000 2,044,958,000 2,089,108,000 2,073,932,000 848,426,000 871,660,000 1,105,115,000 1,128,261,000                                                                       
        other long-term assets
      185,811,000 174,876,000 124,904,000 160,182,000 169,722,000 170,821,000 167,468,000 178,085,000 177,387,000 150,748,000 89,536,000 91,872,000 90,577,000 88,739,000 96,680,000 77,484,000 74,591,000 59,241,000 54,658,000 56,945,000 63,770,000 52,119,000 23,902,000 21,540,000 20,293,000 24,373,000 26,602,000 26,189,000 4,415,000 9,015,000 8,773,000 9,919,000 9,198,000 17,784,000 14,420,000 5,680,000 5,325,000 5,706,000 5,079,000 4,650,000 4,070,000 2,562,000 2,442,000 1,200,000                                                   
        total assets
      5,860,629,000 5,900,009,000 5,797,365,000 5,711,073,000 5,928,139,000 6,748,571,000 6,673,295,000 6,376,321,000 6,471,334,000 6,420,830,000 6,355,563,000 6,304,328,000 6,226,873,000 6,306,566,000 6,437,155,000 6,490,537,000 6,684,884,000 6,654,436,000 6,724,334,000 6,734,517,000 4,925,092,000 4,354,370,000 4,467,735,000 4,461,125,000 3,505,768,000 1,759,268,000 1,781,943,000 1,770,548,000 1,524,022,000 1,509,576,000 1,482,652,000 1,256,916,000 598,560,000 587,179,000 582,601,000 350,261,000 377,040,000 403,211,000 288,529,000 323,788,000 364,296,000 393,989,000 253,017,000 278,814,000 311,624,000                                                  
        liabilities and stockholders’ equity
                                                                                                    
        current liabilities:
                                                                                                    
        accounts payable
      175,868,000 129,356,000 157,324,000 142,175,000 89,572,000 97,653,000 52,980,000 60,498,000 78,816,000 73,558,000 75,080,000 86,713,000 74,916,000 63,583,000 84,167,000 66,471,000 67,829,000 41,717,000 36,592,000 34,704,000 35,709,000 26,061,000 30,998,000 38,048,000 25,973,000 19,158,000 19,896,000 17,552,000 28,141,000 32,738,000 10,992,000 12,274,000 16,135,000 8,774,000 2,237,000 891,000 710,000 2,335,000 3,135,000 2,841,000 3,308,000 1,503,000 1,345,000 2,001,000 2,647,000 4,635,000 357,000 1,331,000 605,000 1,084,000 2,081,000 1,030,000 767,000 949,000  977,000 1,086,000 820,000 379,000 561,000 289,000 203,000 284,000 34,000 236,000 350,000 275,000  266,000 163,000 139,000 158,000 330,000 233,000 266,000 468,000 273,000 339,000 99,000 786,000 176,000 579,000 786,000  757,000 688,000 1,387,000  1,047,060 1,427,851 1,531,212  771,133 479,691 
        accrued liabilities
      416,473,000 408,774,000 317,154,000 295,137,000 328,292,000 313,997,000 302,540,000 265,121,000 341,683,000 309,872,000 299,586,000 241,844,000 299,216,000 307,990,000 308,219,000 365,916,000 398,556,000 304,714,000 265,997,000 214,143,000 233,604,000 182,945,000 139,505,000 166,596,000 193,329,000 134,832,000 151,009,000 143,129,000 100,644,000 68,938,000 60,046,000 56,716,000 49,126,000 38,390,000 26,935,000 27,077,000 28,106,000 26,104,000 23,808,000 20,477,000 22,253,000 20,929,000 16,306,000 11,652,000 13,960,000                                                  
        operating lease liabilities, current portion
      33,591,000 31,851,000 31,338,000 29,808,000 27,405,000 27,170,000 27,096,000 27,225,000 29,379,000 30,389,000 29,872,000 30,014,000 28,366,000 27,054,000 25,813,000 19,711,000 19,710,000 19,220,000 16,599,000 15,290,000 11,483,000 10,746,000 9,871,000 8,663,000 7,891,000                                                                      
        convertible notes, net, current portion
          249,153,000 249,038,000 248,923,000 248,810,000          313,104,000 312,961,000 312,832,000 255,464,000     315,643,000 311,598,000                                                                    
        other current liabilities
      15,220,000 14,279,000 16,117,000 35,345,000 37,765,000 35,804,000 37,103,000 33,455,000 14,823,000 12,694,000 33,519,000 8,783,000 10,249,000 25,049,000 25,132,000 28,854,000 30,973,000 30,157,000 42,230,000 50,626,000 38,265,000 31,761,000 40,581,000 5,709,000 8,467,000                                                                      
        total current liabilities
      641,152,000 584,260,000 521,933,000 502,465,000 732,187,000 723,662,000 668,642,000 685,109,000 514,701,000 476,513,000 488,057,000 367,354,000 412,747,000 423,676,000 443,331,000 480,952,000 517,068,000 710,231,000 675,698,000 628,914,000 575,844,000 252,832,000 222,274,000 243,581,000 236,494,000 480,692,000 492,463,000 167,657,000 136,590,000 106,735,000 82,962,000 73,330,000 68,124,000 49,689,000 31,293,000 29,937,000 30,692,000 30,061,000 28,395,000 24,678,000 26,723,000 23,514,000 18,730,000 14,476,000 17,521,000 16,752,000 9,818,000 9,033,000 8,502,000 8,019,000 9,165,000 9,612,000 8,639,000 7,692,000  7,386,000 7,066,000 6,383,000 7,538,000 7,584,000 7,410,000 7,347,000 7,355,000 7,254,000 6,106,000 5,268,000 5,230,000  3,842,000 3,464,000 6,273,000 6,365,000 6,086,000 6,257,000 5,977,000 6,316,000 6,083,000 6,127,000 5,919,000 7,197,000 6,711,000 7,050,000 7,197,000  7,806,000 4,698,000 4,908,000  5,979,145 6,033,899 4,721,732  2,917,084 1,811,019 
        long-term liabilities:
                                                                                                    
        convertible notes, net, less current portion
      2,327,177,000 2,325,637,000 2,324,097,000 2,322,574,000 2,321,067,000 2,319,490,000 2,317,948,000 2,066,805,000         2,180,232,000 1,865,647,000 1,864,312,000 1,862,992,000 1,320,760,000                                                                          
        other long-term liabilities
      329,317,000 324,807,000 315,899,000 320,225,000 315,503,000 332,213,000 326,678,000 329,384,000 335,982,000 341,771,000 330,816,000 344,380,000 352,459,000 354,998,000 364,107,000 389,062,000 417,782,000 436,580,000 439,175,000 414,195,000 61,582,000 62,821,000 50,311,000 47,252,000 34,911,000 29,511,000 29,924,000 6,821,000 9,475,000 12,691,000 6,501,000 5,643,000 5,633,000 5,611,000 5,684,000 5,680,000 5,734,000 5,308,000 5,054,000 4,893,000 4,804,000 4,455,000 4,620,000 3,541,000 2,399,000                                                  
        operating lease liabilities, less current portion
      161,931,000 163,886,000 166,022,000 168,902,000 157,133,000 162,695,000 167,665,000 162,405,000 161,070,000 168,398,000 168,501,000 174,690,000 182,399,000 184,633,000 187,226,000 180,632,000 182,166,000 162,950,000 164,308,000 157,380,000 121,075,000 124,007,000 126,630,000 118,333,000 118,665,000                                                                      
        total liabilities
      3,459,577,000 3,398,590,000 3,327,951,000 3,314,166,000 3,525,890,000 3,538,060,000 3,480,933,000 3,243,703,000 3,326,029,000 3,299,603,000 3,298,941,000 3,246,620,000 3,183,711,000 3,197,932,000 3,227,809,000 3,232,326,000 3,297,248,000 3,196,846,000 3,165,233,000 3,085,522,000 2,101,603,000 2,017,270,000 1,956,542,000 1,923,472,000 1,217,707,000 1,010,984,000 1,016,411,000 993,608,000 843,081,000 792,847,000 738,264,000 569,898,000 78,142,000 60,035,000 41,907,000 40,741,000 41,745,000 40,882,000 39,141,000 35,455,000 37,440,000 32,703,000 28,176,000 20,605,000 22,640,000                                                  
        commitments and contingencies
                                                                                                    
        stockholders’ equity:
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2025 and december 31, 2024
                                                                                                    
        common stock
      1,909,000 1,896,000 1,893,000 1,887,000 1,857,000 1,852,000 1,848,000 1,839,000 1,815,000 1,809,000 1,806,000 1,799,000 1,780,000 1,774,000 1,769,000 1,757,000 1,738,000 1,723,000 1,720,000 1,714,000 1,595,000 1,505,000 1,501,000 1,495,000 1,477,000 1,299,000 1,295,000 1,292,000 1,232,000 1,229,000 1,226,000 1,219,000 1,205,000 1,196,000 1,190,000 1,112,000 1,102,000 1,084,000 983,000 978,000 968,000 964,000 891,000 889,000 887,000 832,000 829,000 713,000 709,000 707,000 641,000      525,000       308,000 273,000 273,000             263,000 262,000 263,000 262,000 262,000  193,000 191,000 191,000  190,617 190,272 188,173  187,808 186,914 
        additional paid-in capital
      7,102,766,000 7,116,306,000 7,064,867,000 6,993,254,000 6,899,368,000 6,837,476,000 6,786,668,000 6,710,681,000 6,611,237,000 6,540,362,000 6,475,742,000 6,396,805,000 6,311,644,000 6,255,211,000 6,204,742,000 6,085,558,000 6,028,861,000 5,876,644,000 5,811,286,000 5,723,977,000 4,789,657,000 3,865,990,000 3,819,798,000 3,763,328,000 3,406,440,000 1,945,046,000 1,919,719,000 1,894,116,000 1,716,894,000 1,698,695,000 1,681,465,000 1,588,173,000 1,380,577,000 1,365,112,000 1,351,836,000 1,090,002,000 1,080,432,000 1,070,083,000 919,270,000 913,455,000 904,931,000 898,786,000 719,635,000 713,858,000 709,019,000 602,642,000 598,255,000 457,776,000 452,836,000 450,269,000 373,520,000 370,184,000 310,703,000 307,740,000  276,033,000 274,525,000 273,275,000 206,993,000 206,330,000 188,096,000 186,725,000 185,372,000 174,878,000 169,673,000 169,407,000 169,083,000  168,263,000 166,877,000 166,079,000 165,545,000 165,013,000 164,096,000 163,418,000 162,349,000 162,310,000 162,340,000 161,679,000 161,244,000 161,352,000 161,191,000 161,244,000  118,415,000 117,549,000 117,405,000  117,443,162 117,167,748 110,598,051  110,270,897 110,966,428 
        accumulated other comprehensive income
      2,358,000 3,243,000 3,086,000 1,013,000 -944,000 4,630,000 -943,000 -499,000 1,428,000        -1,443,000 133,000 67,000 364,000 526,000 1,084,000 1,489,000    1,760,000 354,000              155,000 -11,000 70,000 -115,000  89,000 133,000               38,000                                
        accumulated deficit
      -4,705,981,000 -4,620,026,000 -4,600,432,000 -4,599,247,000 -4,498,032,000 -3,633,447,000 -3,595,211,000 -3,579,403,000 -3,469,175,000 -3,419,409,000 -3,420,203,000 -3,339,177,000 -3,265,026,000 -3,137,281,000 -2,988,520,000 -2,822,457,000 -2,641,520,000 -2,420,910,000 -2,253,972,000 -2,077,060,000 -1,968,289,000 -1,531,479,000 -1,311,595,000 -1,225,453,000 -1,119,756,000 -1,197,701,000 -1,157,242,000 -1,118,822,000 -1,035,763,000 -981,789,000 -936,425,000 -900,038,000 -860,614,000 -838,850,000 -811,953,000 -781,163,000 -745,821,000 -708,651,000 -670,848,000 -626,083,000 -578,610,000 -538,619,000 -495,674,000 -456,608,000 -420,807,000                           -150,765,000    -137,850,000                   
        total stockholders’ equity
      2,401,052,000 2,501,419,000 2,469,414,000 2,396,907,000 2,402,249,000 3,210,511,000 3,192,362,000 3,132,618,000 3,145,305,000 3,121,227,000 3,056,622,000 3,057,708,000 3,043,162,000 3,108,634,000 3,209,346,000 3,258,211,000 3,387,636,000 3,457,590,000 3,559,101,000 3,648,995,000 2,823,489,000 2,337,100,000 2,511,193,000 2,537,653,000 2,288,061,000 748,284,000 765,532,000 776,940,000 680,941,000 716,729,000 744,388,000 687,018,000 520,418,000 527,144,000 540,694,000 309,520,000 335,295,000 362,329,000 249,388,000 288,333,000 326,856,000 361,286,000 224,841,000 258,209,000 288,984,000 215,105,000 242,870,000 121,756,000 145,090,000 153,580,000 89,133,000 110,657,000 64,024,000 75,863,000  64,592,000 70,891,000 76,278,000 17,801,000 20,535,000 4,737,000     2,242,000 4,041,000  9,746,000 12,552,000 13,571,000 14,958,000 16,850,000 18,990,000 21,540,000 24,621,000 27,264,000 30,552,000 33,754,000 50,556,000 42,429,000 46,504,000 50,556,000  17,817,000 23,588,000 30,994,000  44,832,530 51,435,184 52,200,181  64,541,394 69,264,905 
        total liabilities and stockholders’ equity
      5,860,629,000 5,900,009,000 5,797,365,000 5,711,073,000 5,928,139,000 6,748,571,000 6,673,295,000 6,376,321,000 6,471,334,000 6,420,830,000 6,355,563,000 6,304,328,000 6,226,873,000 6,306,566,000 6,437,155,000 6,490,537,000 6,684,884,000 6,654,436,000 6,724,334,000 6,734,517,000 4,925,092,000 4,354,370,000 4,467,735,000 4,461,125,000 3,505,768,000 1,759,268,000 1,781,943,000 1,770,548,000 1,524,022,000 1,509,576,000 1,482,652,000 1,256,916,000 598,560,000 587,179,000 582,601,000 350,261,000 377,040,000 403,211,000 288,529,000 323,788,000 364,296,000 393,989,000 253,017,000 278,814,000 311,624,000                                                  
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at september 30, 2025 and december 31, 2024
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at june 30, 2025 and december 31, 2024
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at march 31, 2025 and december 31, 2024
                                                                                                    
        debt, current portion
             50,000,000 50,000,000 50,000,000 50,000,000       1,319,000 1,319,000 1,319,000 1,319,000 1,319,000 1,319,000 24,565,000 834,000 601,000 415,000 21,000 8,000  4,588,000 183,000 182,000 180,000 178,000 176,000                                                           
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2024 and december 31, 2023
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at september 30, 2024 and december 31, 2023
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at june 30, 2024 and december 31, 2023
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at march 31, 2024 and december 31, 2023
                                                                                                    
        convertible notes
              2,314,276,000 2,312,921,000 2,311,567,000 2,310,196,000 2,186,106,000 2,184,625,000 2,183,145,000 2,181,680,000      1,554,967,000 1,534,383,000 1,514,306,000 803,605,000   770,510,000 664,749,000 656,341,000 647,923,000 486,688,000                                                               
        long-term debt, less current portion
                       21,438,000 21,740,000 22,041,000 22,342,000 22,643,000 22,944,000  24,032,000 24,254,000 24,429,000 24,787,000 24,073,000 17,080,000 878,000                                                                
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2023 and december 31, 2022
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at september 30, 2023 and december 31, 2022
                                                                                                    
        accumulated other comprehensive loss
               -1,535,000 -723,000 -1,719,000 -5,236,000 -11,070,000 -8,645,000 -6,647,000        -1,717,000 -100,000 -360,000   -1,422,000 -1,406,000 -1,878,000 -2,336,000 -750,000 -314,000 -379,000 -431,000 -418,000 -187,000 -17,000 -17,000 -433,000                                                      
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at june 30, 2023 and december 31, 2022
                                                                                                    
        long-term debt
                 50,000,000 50,000,000 50,000,000 50,000,000                 4,237,000 4,269,000 4,511,000 4,552,000 4,592,000 4,633,000 4,673,000 4,711,000 4,750,000 4,852,000 3,535,000 3,488,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000  1,000,000                                       
        preferred stock, 0.01 par value authorized—5,000,000; shares issued and outstanding—no shares at march 31, 2023 and december 31, 2022
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2022 and december 31, 2021
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2022 and december 31, 2021
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2022 and december 31, 2021
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2022 and december 31, 2021
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2021 and december 31, 2020
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2021 and december 31, 2020
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2021 and december 31, 2020
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2021 and december 31, 2020
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2020 and december 31, 2019
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2020 and december 31, 2019
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2020 and december 31, 2019
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2020 and december 31, 2019
                                                                                                    
        intangibles
                              1,143,550,000     22,493,000 23,108,000 21,558,000 22,160,000                                                              
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2019 and december 31, 2018
                                                                                                    
        goodwill and intangibles
                               44,385,000 45,046,000 45,610,000 46,281,000                                                                  
        accrued interest
                               1,168,000 2,870,000 1,066,000 4,593,000 1,901,000 4,154,000 1,407,000                                                               
        other short-term liabilities
                               9,290,000 6,675,000 5,889,000 3,204,000 3,158,000 3,182,000 2,750,000 2,681,000 2,345,000 1,943,000 1,793,000 1,702,000 1,450,000 1,281,000 1,191,000 996,000 861,000 734,000                                                    
        long-term convertible notes, net, less current portion
                               476,527,000 469,595,000                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2019 and december 31, 2018
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2019 and december 31, 2018
                                                                                                    
        long-term obligations
                                 23,833,000                                                                   
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2019 and december 31, 2018
                                                                                                    
        lease incentive obligation, less current portion
                                  8,194,000    116,000 224,000 378,000 532,000 686,000 840,000 981,000 1,134,000 1,061,000 1,199,000 1,338,000 1,476,000 1,614,000 1,710,000 1,845,000 1,980,000 376,000                                              
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2018 and december 31, 2017
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2018 and december 31, 2017
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2018 and december 31, 2017
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2018 and december 31, 2017
                                                                                                    
        property and equipment, at cost:
                                                                                                    
        computer equipment and computer software
                                      30,148,000 27,374,000 24,802,000 22,485,000 20,767,000 19,053,000 17,514,000 15,827,000 14,025,000 12,662,000 10,807,000 8,818,000 7,577,000                                                  
        laboratory equipment
                                      23,296,000 20,352,000 18,258,000 15,837,000 14,749,000 14,249,000 13,758,000 13,496,000 12,786,000 11,929,000 11,279,000 10,932,000 10,381,000 10,439,000 8,127,000 7,508,000 4,546,000 5,042,000 4,324,000 3,955,000 2,943,000 2,459,000  2,189,000 1,456,000 1,076,000 826,000 729,000 556,000 184,000 174,000 174,000 3,730,000 3,730,000 3,730,000  3,730,000 3,824,000 3,824,000 3,832,000 3,801,000 3,795,000 4,014,000 4,123,000 4,123,000 4,122,000 4,071,000 4,042,000 4,256,000 4,252,000 4,042,000  4,179,000 3,931,000 3,842,000  3,214,150 3,112,331 2,622,405  2,108,200 1,815,343 
        leasehold and building improvements
                                      17,629,000                                                              
        assets under construction
                                      28,655,000 20,868,000 9,095,000 7,200,000 6,711,000 6,536,000 6,360,000 4,735,000 8,038,000 7,066,000 7,664,000 2,946,000 1,552,000 1,048,000 6,694,000 4,926,000 3,668,000                                              
        land
                                      4,466,000                                                              
        land improvements
                                      1,419,000                                                              
        buildings
                                      7,928,000 4,792,000 4,792,000 4,792,000 4,792,000 4,792,000 4,792,000 4,792,000 4,777,000 4,777,000                                                     
        furniture and fixtures
                                      4,531,000 3,156,000 2,897,000 2,581,000 2,515,000 2,515,000 2,037,000 1,825,000 1,265,000 1,038,000 933,000 933,000 939,000 268,000 268,000 268,000 28,000 28,000 28,000 28,000 28,000 23,000  23,000 23,000 23,000 20,000 20,000 20,000 16,000 10,000  299,000 299,000 299,000  299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000 299,000  299,000 299,000 281,000  206,226 206,226 211,530  202,193 194,113 
        less—accumulated depreciation
                                      -38,086,000 -35,036,000 -31,478,000 -28,153,000 -24,941,000 -21,980,000 -19,151,000 -16,386,000 -13,913,000 -11,851,000 -9,817,000 -8,027,000 -6,439,000                                                  
        net property and equipment
                                      79,986,000 55,706,000 42,048,000 38,395,000 38,142,000 38,473,000 36,233,000 35,046,000 34,096,000 32,075,000 27,312,000 21,567,000 19,947,000                                                  
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2017 and december 31, 2016
                                                                                                    
        leasehold improvements
                                       14,200,000 13,682,000 13,653,000 13,549,000 13,308,000 10,923,000 10,757,000 7,118,000 6,454,000 6,446,000 5,965,000 5,937,000 5,108,000 5,055,000 5,050,000 339,000 283,000 283,000 283,000 288,000 288,000  99,000 89,000 89,000 89,000 89,000 74,000 13,000 13,000  55,000 1,161,000 1,161,000  1,259,000 1,259,000 1,259,000 1,259,000 1,259,000 1,259,000 1,259,000 1,259,000 1,254,000 1,254,000 1,133,000 1,463,000 1,475,000 1,463,000 1,463,000  2,239,000 1,549,000 823,000  810,437 795,794 754,049  457,128 345,082 
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2017 and december 31, 2016
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2017 and december 31, 2016
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2017 and december 31, 2016
                                                                                                    
        debt and capital lease obligation, current portion
                                          174,000 172,000 171,000 169,000 166,000 221,000 345,000                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2016 and december 31, 2015
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2016 and december 31, 2015
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2016 and december 31, 2015
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2016 and december 31, 2015
                                                                                                    
        long-term accrued interest
                                                 112,000 106,000 100,000 95,000 90,000 79,000 73,000 68,000 57,000 52,000 47,000  36,000                                       
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2015 and december 31, 2014
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2015 and december 31, 2014
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2015 and december 31, 2014
                                                                                                    
        capital lease obligation, current portion
                                                 269,000 360,000 449,000 361,000 356,000 347,000 342,000 337,000 355,000                                           
        lease incentive obligation, current portion
                                                 554,000 554,000 540,000 540,000 540,000 495,000                                              
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2015 and december 31, 2014
                                                                                                    
        deferred license fees, current portion
                                                      1,330,000 2,366,000 3,402,000 4,143,000 4,143,000 4,143,000  4,143,000 4,143,000 4,143,000 4,481,000 4,552,000 4,889,000   4,986,000 1,350,000 1,350,000 1,350,000  1,350,000 1,350,000 4,363,000 4,363,000 4,363,000 4,363,000 4,363,000 4,363,000 4,363,000 4,383,000 4,421,000                
        capital lease obligation, less current portion
                                                    177,000 269,000 449,000 538,000 625,000 796,000                                           
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at december 31, 2014 and december 31, 2013
                                                                                                    
        computer software and computer equipment
                                                   6,866,000                                                 
        property and equipment, at cost: - sum
                                                   23,729,000 21,404,000 18,970,000 9,436,000 6,749,000 5,490,000  4,083,000 3,549,000  2,839,000 1,950,000 1,485,000 1,116,000 998,000 793,000   196,000 5,504,000 6,610,000 6,610,000  6,703,000 6,797,000 6,797,000 6,803,000 6,766,000 6,760,000 6,979,000 7,088,000 7,077,000 7,075,000 6,903,000  7,414,000 7,393,000 7,178,000  8,063,000 7,102,000 6,243,000  5,496,937 5,337,680 4,799,659  3,925,850  
        accrued expenses
                                                   11,128,000 8,560,000 6,806,000 5,725,000 4,227,000 3,345,000 4,084,000 3,729,000 2,600,000  2,266,000 1,837,000 1,420,000 1,690,000 1,483,000 1,244,000 1,158,000 1,085,000 1,234,000 1,520,000 1,568,000 2,105,000  2,226,000 1,951,000 1,771,000 1,844,000 1,393,000 1,661,000 1,348,000 1,485,000 1,447,000 1,405,000 1,399,000 1,897,000 2,021,000 1,957,000 1,897,000  2,428,000 2,389,000 1,900,000  3,311,405 2,985,355 2,678,676  2,145,951 1,331,328 
        preferred stock, 0.01 par value authorized—5,000,000 shares, issued and outstanding—no shares at september 30, 2014 and december 31, 2013
                                                                                                    
        office and computer equipment
                                                    1,260,000 1,218,000 855,000 1,396,000 855,000 825,000 824,000 779,000  528,000 382,000 297,000 181,000 160,000 143,000 62,000 57,000 22,000 1,420,000 1,420,000 1,420,000  1,415,000 1,415,000 1,415,000 1,413,000 1,407,000 1,407,000 1,407,000 1,407,000 1,401,000 1,400,000 1,400,000 1,374,000 1,384,000 1,379,000 1,374,000  1,346,000 1,323,000 1,297,000  1,266,124 1,223,329 1,211,675  1,158,329 1,139,746 
        preferred stock, 0.01 par value authorized—5,000,000 shares, issued and outstanding—no shares at june 30, 2014 and december 31, 2013
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2014 and december 31, 2013
                                                                                                    
        deferred license fees, less current portion
                                                         1,331,000 2,367,000 3,403,000  5,475,000 6,510,000 7,546,000 9,618,000 9,964,000 10,934,000   14,901,000 1,688,000 2,025,000 2,363,000  3,038,000 3,376,000 1,454,000 2,545,000 3,636,000 4,726,000 5,817,000 6,908,000 7,998,000 9,089,000 10,180,000                
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at september 30, 2013 and december 31, 2012
                                                                                                    
        other comprehensive income
                                                      118,000 17,000 71,000 92,000 53,000 21,000    3,000    5,000  71,000  1,000 24,000  14,000 12,000 5,000 6,000 9,000                      
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2013 and december 31, 2012
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at march 31, 2013 and december 31, 2012
                                                                                                    
        preferred stock, 0.01 par value
                                                                                                    
        authorized—5,000,000 shares
                                                                                                    
        issued and outstanding—no shares at september 30, 2012 and december 31, 2011
                                                                                                    
        authorized—100,000,000 shares
                                                                                                    
        issued and outstanding—63,753,363 and 56,624,763 shares at september 30, 2012 and december 31, 2011
                                                         638,000                                           
        issued and outstanding—no shares at june 30, 2012 and december 31, 2011
                                                                                                    
        issued and outstanding—57,339,933 and 56,624,763 shares at june 30, 2012 and december 31, 2011
                                                          573,000                                          
        issued and outstanding—no shares at march 31, 2012 and december 31, 2011
                                                                                                    
        issued and outstanding—57,109,496 and 56,624,763 shares at march 31, 2012 and december 31, 2011
                                                           571,000                                         
        cash equivalents
                                                            35,385,000                                        
        available-for-sale
                                                                                                    
        u.s. government agency securities
                                                            27,994,000                                        
        certificates of deposit
                                                            9,465,000                                        
        corporate bonds
                                                            19,122,000                                        
        commercial paper
                                                            999,000                                        
        total
                                                            92,965,000                                        
        issued and outstanding—no shares at september 30, 2011 and december 31, 2010
                                                                                                    
        issued and outstanding—52,910,773 and 52,163,629 shares at september 30, 2011 and december 31, 2010
                                                             529,000                                       
        long term debt
                                                              1,000,000 1,000,000 1,000,000 1,000,000 1,000,000                                  
        long term accrued interest
                                                              31,000 26,000 16,000 11,000 6,000                                  
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—no shares at june 30, 2011 and december 31, 2010
                                                                                                    
        less—accumulated depreciation and amortization
                                                                             -5,959,000    -5,939,000                   
        issued and outstanding—no shares at march 31, 2011 and december 31, 2010
                                                                                                    
        issued and outstanding—52,191,956 and 52,163,629 shares at march 31, 2011 and december 31, 2010
                                                               522,000                                     
        restricted cash
                                                                 500,000 500,000 500,000 600,000 600,000 600,000 700,000 700,000  700,000 800,000 800,000 800,000                       
        third party royalty obligation, current portion
                                                                988,000 988,000 988,000   1,000,000                               
        third party royalty obligation, less current portion
                                                                   965,000 965,000 965,000                               
        issued and outstanding—no shares at september 30, 2010 and december 31, 2009
                                                                                                    
        issued and outstanding—40,480,084 and 35,523,140 shares at september 30, 2010 and december 31, 2009
                                                                405,000                                    
        other comprehensive loss
                                                                                 -45,000                   
        issued and outstanding—no shares at june 30, 2010 and december 31, 2009
                                                                                                    
        issued and outstanding—40,201,552 and 35,523,140 shares at june 30, 2010 and december 31, 2009
                                                                 402,000                                   
        issued and outstanding—no shares at march 31, 2010 and december 31, 2009
                                                                                                    
        issued and outstanding—35,832,021 and 35,523,140 shares at march 31, 2010 and december 31, 2009
                                                                  358,000                                  
        patent costs, net of accumulated amortization of 2,820 at december 31, 2008
                                                                                                    
        liabilities and stockholders’ (deficit) equity
                                                                                                    
        third party royalty obligation
                                                                   1,000,000 1,000,000  3,000,000 2,000,000 1,500,000  250,000                          
        deferred revenue
                                                                   4,986,000 4,986,000                                
        stockholders’ (deficit) equity:
                                                                                                    
        preferred stock, 0.01 par value...
                                                                                                    
        common stock, 0.01 par value...
                                                                   355,000 353,000                                
        treasury stock
                                                                             -97,000    -97,000                   
        total stockholders’ (deficit) equity
                                                                   7,249,000 6,968,000                                
        liabilities and stockholders’ deficit
                                                                                                    
        stockholders’ deficit:
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—0 shares at march 31, 2009 and december 31, 2008, respectively
                                                                                                    
        total stockholders’ deficit
                                                                                                    
        patent costs, net of accumulated amortization of 2,843 and 3,019 at september 30, 2008 and december 31, 2007, respectively
                                                                      213,000                              
        stockholders’ equity
                                                                                                    
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—0 shares at september 30, 2008 and and december 31, 2007
                                                                                                    
        patent costs, net of accumulated amortization of 2,837 and 3,019 at june 30, 2008 and december 31, 2007, respectively
                                                                       200,000                             
        preferred stock, 0.01 par value authorized—5,000,000 shares issued and outstanding—0 shares at june 30, 2008 and and december 31, 2007
                                                                                                    
        patent costs, net of accumulated amortization of 3,053 and 3,019 at march 31, 2008 and december 31, 2007, respectively
                                                                        452,000                            
        issued and outstanding—0 shares at march 31, 2008 and and december 31, 2007
                                                                                                    
        issued and outstanding—27,233,957 and 27,225,541 shares at march 31, 2008 and december 31, 2007, respectively
                                                                        273,000                            
        patent costs, net of accumulated amortization of 2,983 and 2,871 at september 30, 2007 and december 31, 2006, respectively
                                                                          450,000                          
        issued and outstanding—0 shares at september 30, 2007 and december 31, 2006
                                                                                                    
        issued and outstanding— 27,134,193 and 26,863,363 shares at september 30, 2007 and december 31, 2006, respectively
                                                                          271,000                          
        patent costs, net of accumulated amortization of 2,947 and 2,871 at june 30, 2007 and december 31, 2006, respectively
                                                                           557,000                         
        issued and outstanding—0 shares at june 30, 2007 and december 31, 2006
                                                                                                    
        issued and outstanding— 27,063,123 and 26,863,363 shares at june 30, 2007 and december 31, 2006, respectively
                                                                           270,000                         
        patent costs, net of accumulated amortization of 2,911 and 2,871 at march 31, 2007 and december 31, 2006, respectively
                                                                            609,000                        
        issued and outstanding—26,929,093 and 26,863,363 shares at march 31, 2007 and december 31, 2006, respectively
                                                                            269,000                        
        patent costs, net of accumulated amortization of 2,279 and 2,871 at december 31, 2005 and 2006, respectively
                                                                             763,000                       
        issued and outstanding—26,436,498 and 26,863,363 shares at december 31, 2005 and 2006, respectively
                                                                             269,000                       
        patent costs and other assets, net of accumulated amortization of 2,279 and 2,740 at december 31, 2005 and september 30, 2006, respectively
                                                                              839,000                      
        issued and outstanding—26,436,498 and 26,690,863 shares at december 31, 2005 and september 30, 2006, respectively
                                                                              267,000                      
        patent costs and other assets, net of accumulated amortization of 2,279 and 2,577 at december 31, 2005 and june 30, 2006, respectively
                                                                               1,115,000                     
        issued and outstanding—26,436,498 and 26,533,153 shares at
                                                                                                    
        december 31, 2005 and june 30, 2006, respectively
                                                                               265,000                     
        patent costs and cther assets, net of accumulated amortization of 2,279 and 2,410 at december 31, 2005 and march 31, 2006, respectively
                                                                                1,322,000                    
        issued and outstanding—26,436,498 and 26,472,091 shares at december 31, 2005 and march 31, 2006, respectively
                                                                                265,000                    
        patent costs and other assets, net of accumulated amortization of 1,718 and 2,279 at december 31, 2004 and 2005, respectively
                                                                                 1,419,000                   
        issued and outstanding—26,285,067 and 26,436,498 shares at
                                                                                                    
        december 31, 2004 and 2005, respectively
                                                                                 264,000                   
        notes receivable
                                                                                                    
        deferred compensation
                                                                                                    
        patent costs and cther assets, net of accumulated amortization of approximately 1,718 and 2,085 at december 31, 2004 and september 30, 2005, respectively
                                                                                  1,614,000                  
        issued and outstanding—26,285,067 and 26,398,466 shares at december 31, 2004 and september 30, 2005, respectively
                                                                                  264,000                  
        patent costs and other assets, net of accumulated amortization of approximately 1,718 and 1,948 at december 31, 2004 and june 30, 2005, respectively
                                                                                   1,830,000                 
        issued and outstanding—26,285,067 and 26,350,613 shares at december 31, 2004 and june 30, 2005, respectively
                                                                                   264,000                 
        patent costs and other assets, net of accumulated amortization of approximately 1,718 and 1,833 at december 31, 2004 and march 31, 2005, respectively
                                                                                    1,922,000                
        prepaid expenses
                                                                                     1,864,000 1,761,000 2,023,000 1,864,000  1,437,000 1,454,000 1,805,000  761,150 1,183,146 1,270,333  1,207,813 425,927 
        patent costs and other assets
                                                                                     2,577,000 2,361,000 2,445,000 2,577,000  2,641,000 2,738,000 2,870,000        
        deferred licensing fees, current portion
                                                                                     4,514,000 4,514,000 4,514,000 4,514,000  4,621,000 1,621,000 1,621,000  1,620,680 1,620,693     
        deferred licensing fees, less current portion
                                                                                     14,601,000 12,344,000 13,472,000 14,601,000  16,778,000 5,683,000 6,088,000  6,898,213 7,303,370     
        less–accumulated depreciation and amortization
                                                                                                    
        unrealized gain on marketable securities
                                                                                          14,000 49,000 75,000        
        short-term investments
                                                                                              26,617,855      
        interest receivable
                                                                                              534,245      
        patent costs, net and other assets
                                                                                              2,888,731 2,831,098 2,865,450  1,300,133 1,252,032 
        subscriptions receivable
                                                                                                    
        unrealized losses on investments
                                                                                                    
        deficit accumulated during the development stage
                                                                                                    
        deferred licensing fees
                                                                                                511,844    
        series a convertible preferred stock, 0.01 par value
                                                                                                    
        series b convertible preferred stock, 0.01 par value
                                                                                                    
        series c convertible preferred stock, 0.01 par value
                                                                                                    
        series d convertible preferred stock, 0.01 par value
                                                                                                    
        1,852,499
                                                                                                   3,494,284 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-09-30 2008-06-30 2008-03-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-09-30 2004-06-30 2004-03-31 2003-09-30 2003-06-30 2003-03-31 2002-09-30 2002-06-30 2002-03-31 2001-09-30 
                                                                                               
          cash flows from operating activities:
                                                                                               
          net loss
        -85,955,000 -19,594,000 -1,185,000 -101,215,000 -864,585,000 -38,236,000 -15,808,000 -110,228,000 -49,766,000 794,000 -81,026,000 -74,151,000 -127,745,000 -148,761,000 -166,063,000 -180,937,000 -220,611,000 -166,938,000 -176,912,000 -31,164,000 -436,810,000 -219,884,000 -86,142,000 -105,697,000 77,945,000 -40,459,000 -38,420,000 -83,059,000 -53,974,000 -45,364,000 -36,387,000 -39,424,000 -21,764,000 -26,897,000 -30,790,000 -34,946,000 -37,170,000 -37,803,000 -44,765,000 -47,473,000 -39,991,000 -42,945,000 -39,066,000 -35,801,000 -32,444,000 -32,060,000 -19,437,000 -16,107,000 -11,160,000 -12,314,000 -10,854,000  -14,836,000 -10,645,000 -7,773,000 -6,625,000 -4,373,000 -3,382,000 -2,477,000 -2,124,000 -1,041,000 -2,394,000 -3,839,000 -3,014,000 -2,100,000 -2,518,000 -4,195,000 -1,825,000 -1,920,000 -2,423,000 -3,083,000 -3,246,000 -4,163,000 -2,695,000 -3,289,000 -3,951,000 -4,585,000 -4,403,000 -4,279,000 -5,291,000 -6,862,000 -7,884,000 -7,883,000 -7,413,676 -7,874,777 -7,585,885  
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                               
          depreciation
        32,114,000 31,708,000 31,097,000 29,960,000 29,046,000 30,336,000 29,687,000 30,632,000 30,861,000 29,262,000 27,510,000 26,815,000 26,567,000 25,043,000                                                         89,000 101,000 198,000 152,000 162,000 226,000 210,000 276,000 299,000 336,000 619,000 434,000 469,000     
          loss on non-marketable and marketable equity investments
              -1,303,000 2,418,000                                                                                
          deferred tax benefit
                -676,000    -2,555,000 -4,406,000 -3,028,000 -1,912,000 -4,453,000 -4,207,000 -1,379,000 -243,130,000 -1,886,000 -4,754,000 -1,304,000 -1,918,000 -184,768,000 643,000 -464,000 -520,000     116,000                                                       
          stock-based compensation
        55,642,000 51,623,000 55,783,000 54,618,000 49,203,000 48,757,000 56,555,000 60,370,000 58,577,000 61,871,000 61,725,000 49,139,000 45,917,000 49,533,000 58,932,000 52,441,000 55,883,000 63,603,000 56,285,000 77,292,000 41,831,000 41,476,000 40,039,000 29,560,000 47,826,000 24,348,000 20,143,000 16,166,000 15,710,000 16,498,000 15,593,000 12,463,000 12,510,000 10,778,000 6,095,000 6,129,000 6,959,000 6,166,000 4,507,000 6,100,000 4,902,000 4,980,000 4,548,000 3,620,000 2,877,000 4,165,000 2,483,000 1,995,000 1,849,000 2,856,000 955,000 1,565,000 1,424,000 1,035,000 1,101,000 1,068,000 686,000 640,000 508,000 527,000 624,000 711,000 623,000 265,000 229,000 301,000 1,376,000 720,000 409,000 561,000 668,000 710,000 1,067,000 231,000 -81,000        328,000     
          gain on settlements of convertible notes
                -10,324,000                                                                            
          amortization of acquired intangible assets
        24,239,000 24,174,000 24,186,000 24,101,000 24,101,000 24,435,000 23,311,000 23,311,000 23,311,000 22,992,000 22,929,000 22,928,000 22,914,000 23,526,000 26,356,000 24,654,000 24,047,000 23,940,000 23,824,000 23,190,000  23,430,000 23,430,000 23,339,000                                                                
          impairment of long-lived and indefinite-lived assets
        406,000 543,000 6,251,000                                                                                    
          asset acquisition ipr&d expense
                        33,074,000 52,263,000                                                                    
          gain on contingent consideration from sale of asset
                -4,400,000                                                                               
          remeasurement of contingent consideration liabilities
        4,905,000 8,705,000 4,909,000 8,287,000 -1,020,000 5,310,000 -13,239,000 5,603,000 -4,993,000                                                                               
          non-cash lease expense
        6,792,000 6,765,000 6,730,000 6,753,000 6,281,000 6,603,000 6,990,000 7,052,000 6,973,000 7,141,000 6,971,000 6,806,000 4,187,000 7,171,000 9,918,000 7,363,000 7,478,000 6,510,000 6,097,000 5,740,000 4,679,000 4,181,000 -3,330,000 10,190,000 2,746,000 919,000 917,000 845,000                                                            
          other
        -1,971,000 2,873,000 3,993,000 2,001,000 918,000 1,230,000 -2,896,000 229,000 -3,131,000 -435,000                                                                              
          changes in assets and liabilities, net of effects of acquisition:
                                                                                               
          accounts receivable
        7,342,000 46,853,000 -73,014,000 -30,072,000 15,151,000 -509,000 -23,365,000 -37,536,000 -3,110,000 -19,814,000 4,942,000 -25,434,000 33,120,000 -2,664,000 19,612,000 11,020,000 39,188,000 -23,033,000 31,945,000 -22,950,000 -26,884,000 -42,998,000 -24,322,000 -6,322,000 8,933,000 -18,297,000 -6,718,000 -11,856,000 -1,795,000 -5,648,000 -1,693,000 -8,156,000 -1,866,000 -1,598,000 -6,377,000 -7,688,000 -663,000 -422,000 -1,820,000 -688,000 -724,000 -2,058,000 -570,000 -205,000                                            
          inventory
        -1,416,000 6,713,000 5,106,000 -14,175,000 -25,395,000 -9,612,000 1,161,000 -1,065,000 5,384,000 -543,000 -6,704,000 -5,827,000 -3,526,000 473,000 -2,214,000 -7,964,000 -8,130,000 -5,358,000 1,035,000 3,232,000 -11,838,000 1,788,000 -12,791,000 -7,469,000 -4,516,000 -5,892,000 -3,512,000 -5,121,000 -139,000 -3,208,000 -3,029,000 -6,353,000 -7,963,000 -5,654,000 -4,551,000 -1,026,000 833,000 738,000 -247,000 -1,480,000 -645,000 243,000 -852,000 -1,406,000                                            
          operating lease liabilities
        -7,424,000 -7,276,000 -7,266,000 -6,575,000 -6,438,000 -6,388,000 -6,354,000 -6,603,000 -6,960,000 -6,975,000 -6,784,000 -5,982,000 -4,404,000 -5,574,000 -5,491,000 -5,177,000 -4,851,000 -4,739,000 -3,975,000 -3,120,000 -2,649,000 -1,138,000 -2,787,000 -2,210,000                                                                
          accounts payable and accrued liabilities
        48,859,000 67,135,000 39,415,000 58,633,000 5,280,000 56,123,000 35,650,000 -53,515,000 31,666,000 2,330,000 53,571,000 -4,817,000 37,088,000 -9,929,000 -13,291,000 -66,048,000 105,456,000 37,206,000 43,000,000 -15,862,000 62,773,000 39,979,000 -29,291,000 -18,296,000                                                                
          other assets
        -17,988,000 7,407,000 8,624,000 -3,837,000 -8,681,000 3,639,000 9,305,000 -6,586,000 -7,932,000 5,938,000 3,998,000 -13,622,000                                                                            
          other liabilities
        8,440,000 -626,000 -7,219,000 -5,814,000 -1,389,000 1,174,000 12,845,000 -2,904,000 7,607,000 -5,508,000 5,395,000 -1,161,000                                                                            
          net cash from operating activities
        151,689,000 219,923,000 89,017,000 30,809,000 47,063,000 138,719,000 107,065,000 -82,311,000 69,549,000 24,361,000 100,424,000 -38,215,000 52,037,000 -40,926,000 -60,916,000 -173,754,000 -24,572,000 -40,774,000 40,337,000 -77,227,000 111,404,000 81,775,000 -6,870,000 -49,827,000 -28,684,000 -29,080,000 17,161,000 -74,407,000 -1,236,000 -4,053,000 -25,514,000 -38,522,000 -764,000 -5,450,000 -31,872,000 -33,638,000 -27,129,000 -24,966,000 -35,624,000 -42,347,000 -33,804,000 -34,525,000 -31,187,000 -34,501,000                                            
          capital expenditures
        -31,243,000 -29,897,000 -42,342,000 -31,174,000 -36,316,000 -26,158,000 -35,866,000 -37,649,000 -34,922,000 -25,187,000 -34,721,000 -29,360,000 -72,876,000 -44,637,000 -63,326,000 -33,623,000 -59,392,000 -38,870,000 -24,584,000 -12,920,000 -16,570,000 -14,327,000 -20,770,000 -12,685,000 -40,832,000 -51,522,000 -68,791,000 -10,657,000 -52,106,000 -53,623,000 -29,036,000 -15,328,000 -24,038,000 -15,794,000 -5,903,000 -2,745,000 -2,685,000 -5,751,000 -4,026,000 -2,389,000 -2,544,000 -6,798,000 -7,535,000 -3,207,000                                            
          free cash flows
        120,446,000 190,026,000 46,675,000 -365,000 10,747,000 112,561,000 71,199,000 -119,960,000 34,627,000 -826,000 65,703,000 -67,575,000 -20,839,000 -85,563,000 -124,242,000 -207,377,000 -83,964,000 -79,644,000 15,753,000 -90,147,000 94,834,000 67,448,000 -27,640,000 -62,512,000 -69,516,000 -80,602,000 -51,630,000 -85,064,000 -53,342,000 -57,676,000 -54,550,000 -53,850,000 -24,802,000 -21,244,000 -37,775,000 -36,383,000 -29,814,000 -30,717,000 -39,650,000 -44,736,000 -36,348,000 -41,323,000 -38,722,000 -37,708,000                                            
          cash flows from investing activities:
                                                                                               
          purchases of marketable securities
        -46,473,000 -13,481,000 -80,315,000 -59,646,000 -81,013,000 -147,047,000 -177,325,000 -64,758,000 -24,440,000 -42,067,000 -8,589,000 -29,048,000 -23,328,000 -8,843,000 -70,267,000 -142,493,000 -106,268,000 -752,791,000 -162,498,000 -199,941,000 -249,927,000 -214,917,000 -425,168,000 -29,988,000 -92,542,000 -248,700,000 -262,887,000 -110,844,000 -186,806,000 -266,354,000 -628,502,000 -12,012,000 -156,791,000 -157,685,000 -30,563,000 -38,533,000 -145,338,000 -6,118,000 -7,057,000 -178,679,000 -8,173,000 -11,145,000                                            
          maturities and sales of marketable securities
        201,795,000 40,053,000 252,872,000 77,557,000 54,905,000 70,581,000 36,357,000 43,978,000 35,102,000 57,229,000 149,493,000 121,332,000  108,130,000 118,680,000 150,630,000  99,450,000 89,085,000 236,295,000  291,424,000 229,340,000 39,143,000                                                                
          purchases of property, plant and equipment
        -31,243,000 -29,897,000 -42,342,000 -31,174,000 -36,316,000 -26,158,000 -35,866,000 -37,649,000 -34,922,000 -25,187,000 -34,721,000 -29,360,000 -72,876,000 -44,637,000 -63,326,000 -33,623,000 -59,392,000 -38,870,000 -24,584,000 -12,920,000 -16,570,000 -14,327,000 -20,770,000 -12,685,000 -40,832,000 -51,522,000 -68,791,000 -10,657,000                                                            
          proceeds from contingent consideration receivable
                                                                                             
          maturities and sales of investments in non-marketable securities
                                                                                               
          purchases of non-marketable securities
                                                                                               
          business combination, net of cash acquired and issuance costs
                    -15,371,000                                                                          
          asset acquisitions, net of cash acquired
                                                                                               
          other investing activities
        152,000 650,000 -505,000 -20,000 -205,000 500,000 250,000   -500,000 -42,000 -7,000 -500,000 -103,000 -141,000 -137,000 272,000 -186,000 -330,000                                                                
          net cash from investing activities
        91,117,000 -86,454,000 224,895,000 -34,437,000 -41,872,000 -81,716,000 -147,129,000 -171,438,000 -66,767,000 -32,969,000 66,474,000 82,941,000 -58,159,000 65,005,000 21,659,000 45,561,000 78,437,000 -49,243,000 -793,767,000 -317,512,000 -306,638,000 16,828,000 -6,380,000 -405,847,000 -834,774,000 857,442,000 -102,672,000 -41,069,000 -9,417,000 -78,988,000 -130,778,000 -562,731,000 24,654,000 -126,596,000 -82,791,000 23,928,000 9,290,000 -105,280,000 31,298,000 53,173,000 40,956,000 -141,975,000 19,500,000 16,764,000    17,304,000   6,824,000             2,221,000    1,591,000 1,516,000 8,000 -3,209,000          -7,968,000 9,837,000 2,568,000     
          cash flows from financing activities:
                                                                                               
          proceeds from exercise of common stock options, net of cash paid for taxes
        1,822,000 209,000 293,000 -422,000  2,132,000 43,000 -1,408,000                                                                                
          proceeds in connection with the company's employee stock purchase plan
                                4,259,000   2,232,000 2,000   1,212,000   1,051,000 1,000   960,000 1,000                                              
          proceeds from issuance of convertible notes
              137,976,000         1,125,547,000 -2,000 -57,000 729,536,000 -1,000 6,000 225,334,000 671,091,000                                                        
          payments on accounts receivable securitization facility
                                                                                             
          payments on settlement of convertible notes
        -249,172,000                 -150,054,000 -1,000 -493,355,000                                                            
          payment of taxes related to net share settlement of equity awards
                                                                                               
          payments on settlement of contingent consideration liabilities
                                                                                             
          other financing activities
        -1,729,000 -1,741,000 -1,840,000 -6,577,000 -2,210,000 -2,358,000 -11,592,000 -1,594,000 -2,267,000 -985,000 -1,155,000 -5,344,000 -417,000 -706,000 -2,860,000 -1,547,000 -544,000 -1,674,000 -1,554,000 -1,514,000 -2,067,000 -312,000 -313,000 -313,000                                                                
          net cash from financing activities
        -75,873,000 -1,532,000 -4,514,000 -256,171,000 10,499,000 -226,000 224,603,000 -3,002,000 10,037,000 92,000 16,041,000 133,596,000 10,103,000 235,000 63,412,000 2,735,000 -12,196,000 81,000 13,342,000 7,245,000 879,859,000 4,158,000 16,124,000 979,480,000 6,624,000 980,000 5,451,000 240,126,000 9,354,000 19,074,000 233,277,000 672,437,000 2,718,000 2,460,000 255,775,000 3,000 3,366,000 144,706,000 1,267,000 247,000 2,509,000 174,166,000 4,795,000 295,000 105,865,000 136,000 138,025,000 2,000 636,000 73,616,000 8,000 57,981,000 222,000 1,642,000 331,000 211,000 14,000 1,434,000 17,743,000 1,109,000 804,000 8,071,000 22,614,000 100,000    15,000 354,000 48,000         43,566,000       139,980 
          effects of exchange rate changes on cash and cash equivalents
        26,000 1,000 574,000 290,000 -3,721,000 1,873,000 -306,000 -1,140,000 1,947,000 -1,235,000 59,000 550,000 3,206,000 -2,429,000 -510,000 -237,000          -66,000 -82,000 120,000 24,000 10,000 -18,000 20,000 46,000 16,000   -51,000                                                   
          net increase in cash, cash equivalents, and restricted cash
                                                                                               
          cash, cash equivalents, and restricted cash, beginning of period
                                                                                               
          cash, cash equivalents, and restricted cash, end of period
                                                                                               
          loss on non-marketable and marketable equity securities
         -7,581,000 -2,136,000 2,900,000                                                                                    
          deferred tax expense
         501,000 -6,000 -1,007,000  -398,000 428,000 1,797,000   -589,000 1,261,000                                                                            
          changes in assets and liabilities:
                                                                                               
          asset acquisition
                         -33,073,000 -25,000,000                                                                    
          purchases of non-marketable investments
         -50,289,000                                                                                      
          proceeds in connection with the company’s employee stock purchase plan
                                                                                        
          net increase in cash, cash equivalents and restricted cash
         131,938,000    58,650,000 184,233,000 -257,891,000 14,766,000 -9,751,000 182,998,000 178,872,000     41,692,000 -89,936,000 -740,088,000 -387,494,000 684,625,000 102,761,000 2,874,000 523,806,000                                                                
          cash, cash equivalents and restricted cash, beginning of period
         606,636,000  609,675,000  242,790,000  315,768,000  1,491,594,000  177,528,000                                                                
          cash, cash equivalents and restricted cash, end of period
         131,938,000 309,972,000 347,127,000  58,650,000 184,233,000 351,784,000  -9,751,000 182,998,000 421,662,000  21,885,000 23,645,000 190,073,000  -89,936,000 -740,088,000 1,104,100,000  102,761,000 2,874,000 701,334,000                                                                
          loss on contingent consideration from sale of asset
               268,000                                                                                
          net decrease in cash, cash equivalents and restricted cash
           -259,509,000          21,885,000 23,645,000 -125,695,000                                                                        
          gain on settlement of convertible notes
                                                                                               
          loss on sale of asset
                                                                                              
          proceeds from sale of asset
                                                                                              
          investments in non-marketable securities
                                                                                               
          proceeds from accounts receivable securitization facility
                                                                                             
          proceeds from exercise of common stock options
                304,000 1,077,000 852,000 964,000 558,000 941,000 743,000 4,282,000 1,065,000 1,755,000 2,858,000 8,759,000 11,669,000 4,470,000 6,638,000 4,300,000 2,398,000 1,391,000 1,348,000 3,650,000 260,000 731,000 4,254,000 1,391,000 1,753,000 2,578,000 725,000 47,000 2,362,000 500,000 261,000 288,000 287,000 102,000 473,000 386,000 2,216,000 231,000 105,000 88,000                                        
          cash, cash equivalents, and restricted cash at the beginning of period
                                                                                               
          cash, cash equivalents, and restricted cash at the end of period
                                                                                               
          impairment of long-lived assets
             18,698,000 8,152,000 4,446,000 552,000 69,000 3,432,000                                                                           
          remeasurement of contingent consideration from sale of asset
             -3,100,000                                                                                  
          business combination, net of cash acquired
                        -84,181,000 -72,301,000 -343,248,000 -4,000 153,000 -6,807,000                                                                
          asset acquisition, net of cash acquired
                                                                                               
          sales of investments in non-marketable securities
                                                                                               
          investments in privately held companies
               -237,000 -10,274,000 -117,000 -5,731,000 -442,000  -160,000 -25,495,000 -1,172,000  -3,555,000 -10,000,000                                                                    
          post-combination expense for acceleration of unvested equity
                        80,960,000                                                                    
          maturities and sales of investments in privately held companies
                                                                                               
          payments on construction loan
                                                                                               
          cash, cash equivalents and restricted cash at the beginning of period
                                                                                               
          cash, cash equivalents and restricted cash at the end of period
                                                                                               
          unrealized loss on equity investments
                 5,523,000 7,090,000 3,009,000 8,277,000 -750,000 2,897,000 1,350,000 -445,000                                                                       
          realized loss on non-marketable investment
                                                                                               
          sales of investments in privately held companies
                                                                                               
          realized gain on non-marketable investment
                                                                                               
          remeasurement of contingent consideration
                  4,250,000 -8,937,000 1,002,000 -5,860,000 -25,079,000 -26,680,000 -4,626,000 1,785,000 6,322,000 2,879,000                                                                    
          loss on disposal of property, plant and equipment
                   284,000 -220,000 1,917,000 -155,000 321,000 127,000 289,000 302,000 337,000 1,540,000 280,000 378,000 272,000 514,000 669,000 129,000 82,000                                                            
          amortization of deferred financing costs, convertible note debt discount and issuance costs, and other liabilities
                   1,783,000 1,854,000 1,853,000 1,720,000 1,700,000 1,735,000 1,666,000 1,649,000 1,633,000                                                                    
          accretion (amortization) of discount (premium) on short-term investments
                   -54,000                                                                            
          realized loss on non-marketable investments
                                                                                               
          loss on settlement of convertible notes
                            7,954,000 10,558,000                                                            
          amortization of premium on short-term investments
                    50,000 302,000 537,000 956,000  1,649,000 1,177,000 439,000  537,000 450,000 53,000 -213,000 -309,000 -1,274,000 -1,306,000 -1,320,000 -1,189,000 -877,000 -515,000 9,000 -1,000 20,000 37,000 51,000 66,000 132,000 214,000 303,000 318,000 325,000 377,000 214,000 258,000 225,000 145,000 188,000 130,000 140,000                                     
          other assets and liabilities
                    6,079,000 -1,990,000 2,337,000 -7,834,000 -37,801,000 -20,040,000 -1,127,000 1,033,000 6,767,000 -8,460,000 52,857,000 -9,438,000                                                                
          maturities of marketable securities
                                  215,059,000 232,615,000 171,884,000 161,445,000 164,681,000 81,161,000 75,981,000 49,010,000 89,239,000 57,236,000 50,508,000 45,809,000 35,324,000 61,680,000 52,457,000 43,502,000 35,208,000 31,116,000 26,483,000 32,921,000 20,349,000 24,419,000 15,421,000 13,636,000 16,431,000 15,251,000 10,238,000 16,334,000 4,752,000 11,128,000 1,498,000 1,672,000 3,670,000 1,756,000 11,974,000   2,243,000 4,213,000 5,080,000 7,868,000 7,226,000 8,850,000 7,871,000 9,671,000 11,397,000 7,361,000 8,265,000 9,137,000 14,509,000 8,511,000           
          investment in privately held companies
                                                                                               
          proceeds from sale of common stock, net of issuance costs
                                        -1,000 -74,000   -5,000       100,916,000 -6,000   -6,000                                     
          realized loss on preferred stock investment
                                                                                               
          realized gain on preferred stock investment
                        -30,500,000                                                                    
          intangible asset impairment charge
                                                                                             
          depreciation and amortization
                       22,993,000 21,078,000 22,260,000 21,499,000 20,508,000  19,713,000 17,626,000 16,006,000                                     18,000                         449,494 325,252 
          unrealized gain on equity investments
                          -2,479,000 -7,000                                                                    
          depreciation and other amortization
                                                                                               
          unrealized net loss on revaluation of equity securities
                                                                                               
          loss on preferred stock investment
                                                                                               
          amortization of convertible note debt discount and issuance costs
                            21,257,000 20,584,000 20,085,000 14,553,000                                                                
          amortization of deferred financing costs and other liabilities
                            -275,000 -1,109,000 -1,432,000 -1,073,000                                                                
          amortization of acquired intangibles
                                                                                               
          proceeds from construction loan, net deferred financing costs
                                                                                               
          unrealized loss on revaluation of marketable equity securities
                              -336,000 669,000                                                                
          proceeds from construction loan
                                 24,000 295,000 6,989,000 16,174,000                                                          
          realized gain on sale of marketable securities
                                -15,000                                                               
          amortization of liabilities
                                -32,123,000 9,173,000 10,063,000 8,420,000                                                            
          purchases of intangible assets
                                                                                               
          proceeds from financing obligation, net payments on mortgage payable
                                                                                               
          depreciation and amortization of property, plant and equipment
                                 8,351,000 7,075,000 6,324,000                                                            
          amortization of intangible assets
                                 811,000 805,000 810,000 755,000 619,000 616,000 612,000 410,000 355,000 240,000 50,000 50,000 50,000 50,000 50,000                                                
          accrued interest
                                 -1,702,000 1,804,000 -3,106,000 2,692,000 -2,253,000 2,747,000 1,407,000         -112,000 6,000 6,000 5,000 5,000 6,000 6,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000                            
          prepaid expenses and other current assets
                                 4,716,000 -730,000 -3,552,000 4,701,000 -7,367,000 -3,598,000 -2,812,000 396,000 -1,633,000 571,000 -329,000 -941,000 1,622,000 427,000 -347,000 -1,150,000 -1,616,000 73,000 -364,000                       75,000   131,000 378,000   63,000              
          accounts payable
                                 -738,000 2,344,000 -10,589,000 -5,271,000 21,746,000 -1,282,000 -3,861,000 7,361,000 6,495,000 1,346,000 181,000 -1,625,000 -800,000 294,000 -467,000 1,805,000 158,000 -656,000 -646,000 -1,988,000   570,000    263,000 -182,000 184,000    -182,000 272,000 134,000     75,000 30,000 103,000             129,000   229,000  -103,361 354,772  
          accrued liabilities
                                 -8,708,000 25,596,000 7,891,000 23,344,000 8,198,000 -9,175,000 -623,000 5,848,000 9,574,000 -1,472,000 1,204,000 1,896,000 2,802,000 3,315,000 -664,000 -381,000 4,624,000 4,654,000 -1,473,000                                            
          other short-term liabilities
                                 112,000 144,000 -60,000 85,000 18,000 98,000 -29,000 148,000                                                       
          other long-term liabilities
                                 -678,000 19,072,000 -2,092,000                                                            
          other long-term assets
                                 1,301,000 -1,321,000 -22,734,000                                                            
          internally developed software
                                 -150,000 -240,000 -140,000 -443,000 -4,000 -69,000 -62,000 -45,000                                                       
          proceeds from financing obligation
                                    12,000                                                           
          payments of deferred financing costs
                                    1,000 -1,000                                                          
          payments on mortgage payable
                                    -4,588,000 -45,000 -45,000 -44,000 -44,000 -42,000 -44,000 -42,000 -42,000 -41,000 -41,000                                                
          stock issuance costs
                                                                                               
          net increase in cash and cash equivalents
                                 829,276,000 -80,142,000 124,770,000 -1,275,000 -63,957,000 76,967,000 71,204,000 26,654,000 -129,570,000 141,201,000 -9,715,000 -14,524,000 14,435,000 -3,141,000 11,016,000 9,613,000 -2,243,000 -6,914,000 -17,452,000 30,302,000 7,121,000 2,902,000 4,955,000             10,490,000   565,000           -501,000     9,979,000       -4,596,378 
          cash and cash equivalents, beginning of period
                                 160,430,000 77,491,000 48,921,000 41,135,000 58,131,000 12,851,000 13,345,000 35,781,000 78,752,000 21,924,000 4,937,000 4,486,000 4,831,000  13,007,000 13,092,000 14,200,000 17,439,000 56,842,722 
          cash and cash equivalents, end of period
                                 829,276,000 -80,142,000 285,200,000 -1,275,000 -63,957,000 76,967,000 148,695,000 26,654,000 -129,570,000 141,201,000 39,206,000 -14,524,000 14,435,000 -3,141,000 52,151,000 9,613,000 -2,243,000 -6,914,000 40,679,000 30,302,000 7,121,000 2,902,000 17,806,000 -11,808,000 13,465,000 8,053,000 6,634,000 -6,266,000 12,292,000 -33,269,000 -33,809,000 72,073,000 -3,417,000 6,061,000 18,171,000 10,490,000 8,693,000 3,595,000 565,000 1,505,000 3,999,000 3,329,000 -17,000 3,852,000  -5,841,000 3,441,000 10,391,000 -4,117,000 -501,000 8,292,000 9,333,000 2,708,000 -10,334,000 24,179,000 1,369,000 2,953,000 11,783,000 -33,544,215 7,764,639 50,195,303 -4,596,378 
          supplemental disclosure of non-cash investing and financing activities:
                                                                                               
          property, plant and equipment acquired but not paid
                                 -7,469,000 -17,717,000 42,119,000                                                            
          unrealized gain on available-for-sale investments, before tax
                                 -2,697,000 1,952,000 2,176,000                                                            
          issuance of 86,532 and 86,882 shares of common stock to fund the company’s 401(k) matching contribution for 2018 and 2017, respectively
                                                                                              
          issuance of 2,159,017 shares of common stock upon settlement of convertible notes
                                                                                               
          retirement of equity component of convertible notes settled
                                 -300,768,000                                                            
          interest paid
                                 3,729,000 174,000 5,214,000 4,541,000 49,000 48,000 50,000 50,000 51,000 50,000 52,000 52,000 52,000 53,000                                                
          issuance of 2,158,991 shares of common stock upon settlement of convertible notes
                                  182,435,000                                                            
          long-term obligations
                                   18,492,000                                                            
          issuance of 86,532 and 86,828 shares of common stock to fund the company’s 401(k) matching contribution for 2018 and 2017, respectively
                                   7,409,000                                                            
          depreciation and amortization of property and equipment
                                    6,133,000 5,541,000                                                          
          loss on disposal of property and equipment
                                    -500,000 757,000 -2,000 98,000 653,000 210,000 71,000 20,000 50,000 57,000           66,000 25,000                                     
          amortization of debt discount
                                    7,732,000 7,737,000 6,171,000 4,651,000                                                        
          amortization of debt issuance costs
                                    676,000 677,000 518,000 402,000                                                        
          amortization of other liabilities
                                    -691,000 -673,000 -603,000 -533,000 -475,000 -430,000 -392,000 -377,000 -300,000 -268,000 -237,000 -208,000 -174,000 -158,000                                              
          amortization of deferred financing costs
                                    20,000 37,000 26,000 23,000 14,000 14,000 12,000 14,000 12,000 14,000 13,000 13,000 11,000                                               
          proceeds from refundable tax credits
                                                                                               
          lease incentive obligation
                                    -159,000 -179,000 836,000 -153,000 -154,000 -154,000 -154,000 -154,000 -153,000 -136,000 -153,000 130,000 -138,000 -139,000 -138,000 -138,000                                            
          purchases of property and equipment
                                    -52,106,000 -53,623,000 -29,036,000 -15,328,000 -24,038,000 -15,794,000 -5,903,000 -2,745,000 -2,685,000 -5,751,000 -4,026,000 -2,389,000 -2,544,000 -6,798,000 -7,535,000 -3,207,000                                            
          business acquisition, net of cash acquired
                                        16,000                                                       
          investment in privately-held company
                                                                                               
          payments on capital lease
                                                                                               
          property and equipment acquired but not paid
                                    7,738,000 693,000 12,508,000 12,513,000 4,888,000 1,825,000 1,330,000 775,000 106,000 -506,000 21,000 1,034,000                                                
          property acquired under build-to-suit lease
                                                                                               
          unrealized loss on available-for-sale investments
                                                             -35,000                                  
          issuance of 86,882, 158,717, and 341,507 shares of common stock to fund the company’s 401(k) matching contribution for 2017, 2016, and 2015, respectively
                                                                                               
          business acquisition contingent consideration liability
                                                                                               
          unrealized gain on available-for-sale investments
                                       -1,606,000 -482,000 49,000   -180,000 -145,000 82,000 473,000 -540,000 75,000 -59,000 195,000 -109,000   8,000 33,000 14,000 -7,000 39,000    -11,000 -2,000 -18,000 -1,000 -1,000                            
          issuance of 86,882 and 158,717 shares of common stock to fund the company’s 401(k) matching contribution for 2017 and 2016, respectively
                                                                                              
          depreciation and amortization of fixed assets
                                       4,281,000 3,993,000 3,751,000 3,509,000 3,247,000 3,072,000 2,948,000 2,816,000 2,473,000 2,188,000 2,035,000 1,790,000 1,587,000                                            
          issuance of 86,828 and 158,717 shares of common stock to fund the company’s 401(k) matching contribution for 2017 and 2016, respectively
                                       4,300,000                                                        
          forgiveness of long-term debt
                                                                                             
          purchased intangible assets
                                        -12,248,000                                                       
          payments on capital lease obligations
                                                -177,000 -92,000 -91,000                                            
          proceeds from mortgage payable
                                                1,306,000 100,000                                              
          issuance of 158,717, 341,507 and 21,826 shares of common stock to fund the company’s 401(k) matching contribution for 2016, 2015, and 2014 respectively
                                                                                               
          issuance of 158,717 and 341,507 shares of common stock to fund the company’s 401(k) matching contribution for 2016 and 2015, respectively
                                         3,008,000                                                    
          amortization of deferred license fees
                                                                                               
          proceeds from new market tax credit financing agreements
                                                                                               
          issuance of 341,507, 21,826 and 32,666 shares of common stock to fund the company’s 401(k) matching contribution for 2015, 2014 and 2013, respectively
                                                                                               
          issuance of 341,507 and 21,826 shares of common stock to fund the company’s 401(k) matching contribution for 2015 and 2014, respectively
                                                                                               
          effects of exchange rate on cash and cash equivalents
                                              -82,000 -57,000 -48,000 91,000 -22,000 -10,000                                            
          issuance of 340,950 and 21,826 shares of common stock to fund the company’s 401(k) matching contribution for 2015 and 2014, respectively
                                              5,000 2,146,000                                                
          issuance of 21,826, 32,666 and 30,538 shares of common stock to fund the company’s 401(k) matching contribution for 2014, 2013 and 2012, respectively
                                                                                               
          issuance of 21,826 and 32,669 shares of common stock to fund the company’s 401(k) matching contribution for 2014 and 2013, respectively
                                                                                              
          amortization of other long-term liabilities
                                                   -58,000                                            
          issuance of 21,826 and 32,666 shares of common stock to fund the company’s 401(k) matching contribution for 2014 and 2013, respectively
                                                   835,000                                            
          warrant licensing expense
                                                           125,000 27,000   27,000 26,000 27,000 27,000                            
          restricted stock licensing expense
                                                                                              
          accrued expenses
                                                    2,832,000 2,568,000 1,754,000 1,456,000 1,498,000 1,143,000 372,000 355,000   429,000   207,000         516,000 258,000 38,000 289,000 -64,000       67,000 60,000 344,000    426,050 344,460 233,528 814,623 
          issuance of 32,666, 30,538, and 32,872 shares of common stock to fund the company’s 401(k) matching contribution for 2013, 2012, and 2011, respectively
                                                                                               
          laboratory equipment acquired with a capital lease
                                                                                               
          adjustments to reconcile net loss to net cash used in operating activities:
                                                                                               
          depreciation of property and equipment
                                                        330,000 332,000 314,000 249,000 215,000 202,000 117,000 78,000 67,000 62,000                              
          issuance of 32,269 and 30,534 shares of common stock to fund the company’s 401(k) matching contribution for 2013 and 2012, respectively
                                                                                               
          depreciation of fixed assets
                                                      688,000 656,000            48,000   12,000   59,000                      
          loss on disposal of fixed asset
                                                                                               
          issuance of 32,266 and 30,534 shares of common stock to fund the company’s 401(k) matching contribution for 2013 and 2012, respectively
                                                                                               
          issuance of 32,666 and 30,534 shares of common stock to fund the company’s 401(k) matching contribution for 2013 and 2012, respectively
                                                       456,000                                        
          proceeds from exercise of common stock options and stock purchase plan
                                                        726,000 396,000 90,000 226,000 222,000 1,642,000 331,000 211,000 14,000 146,000 147,000 704,000 9,000 14,000 6,000 17,000 15,000 134,000 48,000 18,000 53,000 -1,000 65,000 5,000 68,000 102,000 2,000 160,000 845,000 123,000 127,000     
          issuance of 30,534 and 32,872 shares of common stock to fund the company’s 401(k) matching contribution for 2012 and 2011, respectively
                                                                                              
          conversion of accrued expenses into 34,442 and 34,336 shares of common stock in connection with the company’s employee stock purchase plan for 2013 and 2012, respectively.
                                                                                              
          net decrease in cash and cash equivalents
                                                                                               
          issuance of 30,534 and 32,872 shares of common stock to fund the
                                                                                               
          company’s 401(k) matching contribution for 2012 and 2011, respectively
                                                          354,000                                     
          net income
                                                                                               
          adjustments to reconcile net income to net cash from operating activities:
                                                                                               
          issuance of 32,872 and 27,872 shares of common stock to fund the company’s 401(k) matching contribution for 2011 and 2010, respectively
                                                           274,000                                  
          conversion of accrued expenses into 34,336 and 27,110 shares of common stock in connection with the company’s employee stock purchase plan for 2012 and 2011, respectively
                                                                                              
          proceeds from genzyme collaboration, license and purchase agreement
                                                                 934,000 962,000 16,650,000                         
          decrease in restricted cash
                                                                                               
          issuance of 27,872 and 15,460 shares of common stock to fund the company’s 401(k) matching contribution for 2010 and 2009, respectively
                                                              1,000 168,000                               
          amortization and write-offs of patents
                                                                      95,000 5,000 281,000 34,000 110,000 68,000 171,000 136,000 326,000 297,000 142,000               
          third party royalty obligation
                                                                       1,000,000 500,000 300,000                      
          proceeds from sale of common stock to genzyme
                                                                    6,000,000                         
          payment for repurchase of stock options
                                                                                               
          issuance of 15,460 and 24,430 shares of common stock to fund the company’s 401(k) matching contribution for 2009 and 2008, respectively
                                                                                               
          issuance of 15,460 and 24,430 shares of common stock to fund the company’s 401(k) matching contribution for 2009 and 2008 respectively
                                                                                               
          issuance of 15,460 shares of common stock to fund the company’s 401(k) matching contribution for 2009
                                                                   65,000                            
          restructuring
                                                                                 282,000           
          warrant expense for license fees
                                                                    28,000                           
          amortization of deferred revenue
                                                                                               
          increase in patent costs and other assets
                                                                                               
          payment to repurchase stock options
                                                                                               
          supplemental disclosure for non-cash investing and financing activities:
                                                                                               
          issuance of 24,430 shares of common stock to fund the company’s 401(k) matching contribution for 2008
                                                                                               
          issuance of 27,660 shares of common stock to fund the company’s 401(k) matching contribution for 2007
                                                                       1,000                        
          depreciation and write-offs of fixed assets
                                                                       58,000   66,000 54,000 56,000                   
          proceeds from sale of fixed assets
                                                                                               
          issuance of 34,030 shares of common stock to fund the company’s 401(k) matching contribution for 2006
                                                                                              
          issuance of 56,675 shares of restricted common stock to collaborator in lieu of cash to settle semi-annual license obligation
                                                                          158,000                   
          net cash provided by investing activities
                                                                         2,560,000       1,622,000               
          net cash provided by financing activities
                                                                         6,000       53,000    69,000 105,000     181,000 191,495 15,728 251,460  
          issuance of 56,675 shares of restricted common stock to collaborators in lieu of cash payments
                                                                                               
          net increase (decrease) in cash and cash equivalents
                                                                                               
          issuance of 85,800 shares of common stock to fund the company’s 401(k) matching contribution for 2005
                                                                                              
          net (decrease) increase in cash and cash equivalents
                                                                                               
          increase in restricted cash
                                                                                               
          non-cash revenue reduction recorded in connection with warrant extension
                                                                                             
          net proceeds from sale of common stock
                                                                                     -78,000 43,383,000       -7,896 
          repayment of notes receivable
                                                                                    1,000 3,000 342,000 23,000 2,000 1,000 54,000     
          cash and cash equivalents, beginning of year
                                                                                               
          cash and cash equivalents, end of year
                                                                                               
          repurchase of restricted stock through forgiveness of notes receivable
                                                                                     2,000 83,000        
          forgiveness of notes receivable and accumulated interest
                                                                                     228,000        
          supplemental disclosure of non-cash financing activities:
                                                                                               
          deferred license fees
                                                                                              
          amortization
                                                                                  275,000 128,000 138,000 144,000 114,000 132,000 234,000 326,000 116,000     
          net cash (used in) provided by investing activities
                                                                                    2,130,000           
          stock based compensation
                                                                                    303,000           
          adjustments to reconcile net loss to net cash from operating activities –
                                                                                               
          non-cash stock-based compensation expense
                                                                                     154,000 120,000 126,000 329,000   543,870 544,052 567,801 865,887 
          amortization of deferred licensing fees
                                                                                               
          prepaid expenses
                                                                                               
          purchase of marketable securities
                                                                                               
          maturity and sale of marketable securities
                                                                                     15,686,000 5,768,000 9,168,000        
          adjustments to reconcile net loss to net cash from operating activities
                                                                                               
          net sale (purchase) of marketable securities
                                                                                               
          purchase of treasury shares
                                                                                               
          sale of marketable securities
                                                                                         10,891,000 3,122,000     
          adjustments to reconcile net loss to net cash from operating activities–
                                                                                               
          depreciation and amortization expense
                                                                                           590,667    
          amortization of licensing fees
                                                                                               
          non-cash expense associated with issuance of warrants
                                                                                               
          interest receivable
                                                                                               
          net proceeds from sale of preferred stock
                                                                                               
          proceeds from exercise of common stock options and purchase plans
                                                                                           164,554    
          repayment of stock subscription receivable
                                                                                           26,941 5,319 189,410 3,940 
          sale of restricted stock through issuance of notes receivable
                                                                                              -69 
          issuance of warrants to purchase common stock
                                                                                              
          purchase of treasury shares through the forgiveness of notes
                                                                                               
          equipment purchased through capital lease obligations
                                                                                               
          adjustments to reconcile net loss to net cash from operating activities-
                                                                                               
          payments on capital lease bligations
                                                                                               
          adjustments to reconcile net loss to net cash from operating activities—
                                                                                               
          proceeds from exercise of common stock options and stock purchase plans
                                                                                             65,987  
          repurchase of treasury shares
                                                                                               
          adjustments to reconcile net income to net cash from operating activities-
                                                                                               
          net proceeds from sale of convertible preferred stock
                                                                                               
          adjustments to reconcile net income to net cash from operating activities;