7Baggers

InterDigital, Inc
(NASDAQ:IDCC) 

IDCC stock logo

InterDigital, Inc. designs and develops technologies that enable and enhance wireless communications in the United States and internationally. It provides technology solutions for use in digital cellular and wireless products and networks, including 2G, 3G, 4G, 5G, and IEEE 802-related products and ...

Founded: 1972
Full Time Employees: 487
Sector: Communication Services
Industry: Telecom Services

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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 
                                                                                
      revenue
    205,416,000 158,230,000 164,682,000 300,596,000                                                                         
      yoy
                                                                                
      qoq
    29.82% -3.92% -45.21%                                                                          
      operating expenses:
                                                                                
      research and portfolio development
    55,835,000 57,260,000 53,068,000 53,674,000 47,430,000 49,052,000 48,331,000 50,145,000 49,375,000 45,725,000 50,253,000 49,878,000 49,429,000                                                                
      licensing
    52,119,000 32,341,000 19,715,000 23,909,000 17,677,000 20,027,000 27,467,000 25,156,000 96,589,000 19,863,000 21,522,000 16,644,000 21,368,000                                                                
      general and administrative
    15,201,000 20,843,000 16,091,000 17,586,000 13,568,000 21,197,000 13,539,000 14,286,000 13,840,000 14,605,000 14,678,000 11,693,000 12,315,000                                                        6,553,000 9,698,000 5,498,000 5,705,000 5,675,000 6,144,000 5,396,000 6,126,000 
      total operating expenses
    123,155,000 110,444,000 88,874,000 95,169,000 78,675,000 90,276,000 89,337,000 89,587,000 159,804,000 80,193,000 86,453,000 78,215,000 83,112,000 78,461,000 82,927,000 74,757,000 71,133,000 86,226,000 106,719,000 90,884,000 70,374,000                                                        
      income from operations
    82,261,000 47,786,000 75,808,000 205,427,000 131,832,000 162,526,000 39,342,000 133,906,000 103,738,000 25,325,000 53,653,000 23,376,000 119,261,000 38,594,000 31,837,000 49,900,000 30,185,000 25,589,000 36,777,000 -3,149,000 11,989,000 3,140,000 15,430,000 31,917,000 4,681,000 25,296,000 3,774,000 8,915,000 -150,000 3,845,000 12,920,000 15,680,000 30,150,000 145,704,000 40,875,000 80,948,000 33,968,000 209,149,000 156,718,000 23,083,000 48,356,000 53,340,000 45,387,000 58,578,000 51,244,000 25,288,000 15,341,000 128,372,000 -41,000 37,980,000 49,128,000 12,692,000 -15,044,000 18,832,000 363,219,000 17,574,000 19,405,000 35,491,000 32,153,000 29,807,000 37,306,000 53,647,000 54,471,000 53,074,000 74,681,000 40,842,000 46,582,000 40,228,000 -13,763,000 4,735,000 13,048,000 7,839,000 10,911,000 -2,762,000 10,506,000 -8,879,000 
      yoy
    -37.60% -70.60% 92.69% 53.41% 27.08% 541.76% -26.67% 472.84% -13.02% -34.38% 68.52% -53.15% 295.10% 50.82% -13.43% -1684.63% 151.77% 714.94% 138.35% -109.87% 156.12% -87.59% 308.85% 258.01% -3220.67% 557.89% -70.79% -43.14% -100.50% -97.36% -68.39% -80.63% -11.24% -30.33% -73.92% 250.68% -29.75% 292.11% 245.29% -60.59% -5.64% 110.93% 195.85% -54.37% -125085.37% -33.42% -68.77% 911.44% -99.73% 101.68% -86.47% -27.78% -177.53% -46.94% 1029.66% -41.04% -47.98% -33.84% -40.97% -43.84% -50.05% 31.35% 16.94% 31.93% -642.62% 762.56% 257.00% 413.18% -226.14% -271.43% 24.20% -188.29%     
      qoq
    72.14% -36.96% -63.10% 55.82% -18.89% 313.11% -70.62% 29.08% 309.63% -52.80% 129.52% -80.40% 209.01% 21.22% -36.20% 65.31% 17.96% -30.42% -1267.89% -126.27% 281.82% -79.65% -51.66% 581.84% -81.50% 570.27% -57.67% -6043.33% -103.90% -70.24% -17.60% -47.99% -79.31% 256.46% -49.50% 138.31% -83.76% 33.46% 578.93% -52.26% -9.34% 17.52% -22.52% 14.31% 102.64% 64.84% -88.05% -313202.44% -100.11% -22.69% 287.08% -184.37% -179.89% -94.82% 1966.80% -9.44% -45.32% 10.38% 7.87% -20.10% -30.46% -1.51% 2.63% -28.93% 82.85% -12.32% 15.79% -392.29% -390.67% -63.71% 66.45% -28.16% -495.04% -126.29% -218.32%  
      operating margin %
    40.05% 30.20% 46.03% 68.34% 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% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% 
      interest expense
    -9,067,000 -10,535,000 -10,019,000 -9,537,000 -9,871,000 -11,335,000 -10,681,000 -11,483,000 -11,922,000 -7,906,000 -12,683,000 -12,141,000 -12,087,000 -10,050,000 -7,659,000 -6,272,000 -5,515,000 -5,796,000 -5,773,000 -6,666,000 -6,990,000 -9,918,000 -10,365,000 -9,971,000 -10,545,000 -10,650,000 -10,920,000 -9,907,000                                                 
      other income
    6,600,000 12,951,000 10,188,000 15,144,000 10,258,000 1,842,000 12,554,000 11,682,000 9,247,000 15,509,000 14,725,000 14,387,000 13,191,000 11,652,000 912,000 -15,016,000 -1,005,000 9,349,000 -1,537,000 3,039,000 724,000 3,118,000 3,994,000 3,789,000 6,023,000 5,290,000 7,803,000 12,354,000                    -3,602,000    2,899,000  -2,470,000 -2,708,000 -2,484,000 -2,734,000 -2,677,000 -3,149,000 -3,381,000 -942,000                
      income before income taxes
    79,794,000 50,202,000 75,977,000 211,034,000 132,219,000 153,033,000 41,215,000 134,105,000 101,063,000 32,928,000 55,695,000 25,622,000 120,365,000 40,196,000 25,090,000 28,612,000 23,665,000 29,142,000 29,467,000 -6,776,000 5,723,000 -3,660,000 9,059,000 25,735,000 159,000 19,936,000 657,000 11,362,000 -6,013,000 -1,556,000 -1,033,000 10,833,000 23,814,000 143,930,000 38,688,000 78,618,000 31,154,000 205,755,000 152,920,000 22,377,000 41,219,000 46,896,000 37,279,000 50,832,000 46,008,000 20,589,000 12,174,000 124,770,000 -4,005,000 24,274,000 46,178,000 15,591,000 -24,524,000 16,362,000 360,511,000 15,090,000 16,671,000 32,814,000 29,004,000 26,426,000 36,364,000 54,176,000 55,027,000 53,963,000 75,281,000 37,671,000 47,113,000 40,853,000 -12,934,000 5,378,000 14,165,000 9,070,000 11,349,000 -813,000 12,601,000 -6,607,000 
      income tax provision
    -4,465,000 -7,231,000 -8,474,000 -30,466,000 -16,617,000 -19,925,000 -7,025,000 -24,441,000 -19,411,000 6,158,000 -8,541,000 -4,329,000 -16,845,000 -4,328,000 -3,323,000 -8,028,000 -5,961,000   -21,000 -1,765,000   -5,144,000          -92,263,000 -3,963,000   -69,978,000 -49,397,000  -14,068,000   -18,877,000      -10,404,000 -20,068,000   -830,000 -124,842,000 -5,417,000 -5,741,000 -10,047,000 -2,798,000 -9,270,000 -13,025,000 -19,865,000 -19,512,000 -19,000,000  1,205,000 -16,492,000 -14,408,000  -1,549,000 -4,956,000  -4,032,000 -2,709,000 -3,884,000  
      net income
    75,329,000 42,971,000 67,503,000 180,568,000 115,602,000 133,108,000 34,190,000 109,664,000 81,652,000 39,086,000 47,154,000 21,293,000 103,520,000 32,006,000 21,767,000 20,584,000 17,704,000 19,813,000 25,214,000 -6,797,000 3,958,000 -2,891,000 21,902,000 20,591,000 -1,661,000 11,952,000 835,000 6,378,000 -4,214,000 860,000 20,110,000 9,776,000 28,729,000 51,667,000 34,725,000 51,544,000 32,778,000 135,777,000 103,523,000 39,029,000 27,151,000 32,319,000 23,788,000 31,955,000 28,332,000 13,228,000 12,635,000 78,112,000 -2,555,000 13,870,000 26,110,000 8,606,000 -12,903,000 15,532,000 235,669,000 9,673,000 10,930,000 22,767,000 26,206,000 17,156,000 23,339,000 34,311,000 35,515,000 34,963,000 48,827,000 38,876,000 30,621,000 26,445,000 -8,686,000        
      yoy
    -34.84% -67.72% 97.43% 64.66% 41.58% 240.55% -27.49% 415.02% -21.12% 22.12% 116.63% 3.44% 484.73% 61.54% -13.67% -402.84% 347.30% -785.33% 15.12% -133.01% -338.29% -124.19% 2522.99% 222.84% -60.58% 1289.77% -95.85% -34.76% -114.67% -98.34% -42.09% -81.03% -12.35% -61.95% -66.46% 32.07% 20.72% 320.12% 335.19% 22.14% -4.17% 144.32% 88.27% -59.09% -1208.88% -4.63% -51.61% 807.65% -80.20% -10.70% -88.92% -11.03% -218.05% -31.78% 799.29% -43.62% -53.17% -33.65% -26.21% -50.93% -52.20% -11.74% 15.98% 32.21% -662.13%            
      qoq
    75.30% -36.34% -62.62% 56.20% -13.15% 289.32% -68.82% 34.31% 108.90% -17.11% 121.45% -79.43% 223.44% 47.04% 5.75% 16.27% -10.64% -21.42% -470.96% -271.73% -236.91% -113.20% 6.37% -1339.67% -113.90% 1331.38% -86.91% -251.35% -590.00% -95.72% 105.71% -65.97% -44.40% 48.79% -32.63% 57.25% -75.86% 31.16% 165.25% 43.75% -15.99% 35.86% -25.56% 12.79% 114.18% 4.69% -83.82% -3157.22% -118.42% -46.88% 203.39% -166.70% -183.07% -93.41% 2336.36% -11.50% -51.99% -13.12% 52.75% -26.49% -31.98% -3.39% 1.58% -28.39% 25.60% 26.96% 15.79% -404.46%         
      net income margin %
    36.67% 27.16% 40.99% 60.07% 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% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 
      net income per common share:
                                                                                
      basic
    2,930 1,680 2,620                                                                          
      diluted
    2,140 1,120 1,930                                                                          
      weighted-average number of common shares outstanding:
                                                                                
      basic
    25,721,000 25,794,000 25,797,000                                                                          
      diluted
    35,280,000 34,474,000 34,925,000                                                                          
      cash dividends declared per common share
    700 700 700 600 600 450 450 400 400                     350 350 350 350 350 350 300 300 300 300 200 200 200 200 200 200 200 200 200 100 100 100 100 100 1,600 100 100 100 100 100 100 100                
      net income per common share — basic
       6,970 4,490 5,240 1,360 4,350 3,200 1,550 1,820 810 3,660 1,080 750 690 590 710 850 50 180 -40 770 720  430 70 250 -90 60 620 310 860 1,520 1,020 1,510 980 3,960 3,050 1,160 800 930 680 910 790 400 340 1,950  360 650 220 -300 450 5,610 220 240 500 580 380 520 790 800  1,110 880 700 600 -200 90 210 130 160    
      weighted-average number of common shares outstanding — basic
       25,917,000 25,741,000 25,325,000 25,149,000 25,207,000 25,510,000 26,860,000 26,285,000 26,768,000 28,780,000 30,106,000 29,659,000 30,413,000 30,703,000 30,764,000 30,737,000 30,804,000 30,836,000 30,776,000 30,804,000 30,757,000 30,722,000 31,546,000 31,130,000 31,547,000 32,611,000 34,491,000 34,651,000 34,769,000 34,641,000 34,605,000 34,709,000 34,686,000 34,370,000 34,526,000 34,280,000 34,499,000 35,045,000 36,048,000 35,798,000 36,022,000 36,954,000 39,420,000 39,620,000 40,443,000 40,444,000 41,115,000 41,185,000 41,161,000 41,138,000 43,070,000 42,024,000 43,876,000 45,401,000 45,411,000 45,463,000 45,369,000 45,306,000 44,084,000 44,076,000  43,614,000 43,295,000 43,083,000 43,479,000 43,501,000 44,928,000 44,708,000 45,358,000 46,426,000    
      net income per common share — diluted
       5,350 3,450 4,230 1,140 3,930 2,880 1,430 1,720 790 3,580 1,070 740 690 580 700 830 50 180 -50 760 720  440 70 240 -90 70 600 300 840 1,470 1,000 1,460 930 3,860 2,990 1,140 790 920 680 890 780 390 340 1,930  350 640 220 -300 450 5,560 220 240 490 570 370 510 770 790  1,090 870 690 590 -200 90 200 130 150    
      weighted-average number of common shares outstanding — diluted
       33,725,000 33,505,000 29,711,000 30,034,000 27,910,000 28,341,000 28,102,000 27,812,000 27,655,000 29,372,000 30,485,000 29,940,000 30,710,000 31,275,000 31,253,000 31,431,000 31,189,000 31,195,000 31,058,000 31,119,000 31,045,000 30,920,000 31,785,000 31,308,000 31,776,000 32,611,000 35,307,000 35,607,000 35,631,000 35,606,000 35,779,000 35,388,000 35,902,000 36,220,000 35,189,000 34,953,000 34,945,000 35,377,000 36,463,000 36,205,000 36,442,000 37,329,000 39,879,000 40,191,000 40,822,000 40,444,000 41,424,000 41,448,000 41,456,000 41,138,000 43,396,000 42,353,000 44,139,000 45,946,000 46,014,000 46,281,000 45,843,000 45,872,000 44,824,000 44,599,000  44,237,000 44,080,000 43,819,000 44,313,000 43,501,000 45,964,000 45,813,000 46,450,000 47,323,000    
      revenues
        210,507,000 252,802,000 128,679,000 223,493,000 263,542,000 105,518,000 140,106,000 101,591,000 202,373,000 117,055,000 114,764,000                                          69,305,000 76,956,000 76,455,000 69,873,000 78,458,000 95,282,000 91,923,000 91,153,000 116,187,000 76,429,000 75,486,000 74,928,000 70,561,000 58,677,000 55,059,000 58,706,000 56,027,000 54,860,000 56,548,000 55,006,000 
      net loss attributable to noncontrolling interest
              -787,000 -490,000 -1,739,000 -402,000 -455,000 -485,000 -290,000 -2,065,000 -1,014,000 -8,415,000 -1,613,000 -1,541,000 -1,882,000 -1,660,000 -1,777,000 -1,802,000 -1,399,000 -1,365,000 -1,411,000 -970,000 -1,297,000 -930,000 -1,196,000 -835,000 -811,000 -955,000 -978,000 -693,000 -943,000 -965,000 -920,000 -719,000 -732,000 -647,000 -733,000 -562,000 -877,000  -694,000 -666,000 -550,000                          
      net income attributable to interdigital, inc.
         133,108,000 34,190,000 109,664,000 81,652,000 39,086,000 47,941,000 21,783,000 105,259,000 32,408,000 22,222,000 21,069,000 17,994,000 21,878,000 26,228,000 1,618,000 5,571,000 -1,350,000 23,784,000 22,251,000 116,000 13,754,000 2,234,000 7,743,000 -2,803,000 1,830,000 21,407,000 10,706,000 29,925,000 52,502,000 35,536,000 52,499,000 33,756,000 136,470,000 104,466,000 39,994,000 28,071,000 33,038,000 24,520,000 32,602,000 29,065,000 13,790,000 13,512,000 78,901,000  14,536,000 26,660,000 9,238,000 -12,269,000                        
      restructuring activities
                   2,738,000 542,000 7,587,000 7,045,000 13,245,000                                                         
      patent administration and licensing
                 33,558,000 46,720,000 45,417,000 42,095,000 42,047,000 56,150,000 40,970,000 36,574,000 51,011,000 40,364,000 38,695,000 40,108,000 46,744,000 34,772,000 37,353,000 36,071,000 38,601,000 32,077,000 26,487,000 26,916,000 27,598,000 28,673,000 25,479,000 29,407,000 31,943,000 26,149,000 28,285,000 27,167,000 29,201,000 28,363,000 31,212,000 31,625,000 36,187,000 33,454,000 30,869,000 33,298,000 36,212,000 36,786,000 33,164,000 36,875,000 31,305,000 45,551,000 26,200,000 23,228,000 21,132,000 17,900,000 16,756,000 15,948,000 13,605,000 12,772,000 14,707,000 17,823,000 15,090,000 13,320,000 15,580,000      12,319,250 17,997,000  
      development
                 14,121,750 21,789,000 17,086,000 17,612,000 22,369,000 22,546,000 21,870,000 22,583,000 22,891,000 20,845,000 22,092,000 18,818,000 18,832,000 20,506,000 17,027,000 18,495,000 20,419,000 17,276,000 15,829,000 16,174,000 18,480,000 15,924,000 17,783,000 18,521,000 18,295,000 15,560,000 14,609,000 20,269,000 19,767,000 16,618,000 18,326,000 17,991,000 17,766,000 19,191,000 22,908,000 15,435,000 17,935,000 15,772,000 13,477,000 16,146,000 16,821,000 16,375,000 17,177,000 17,489,000 13,561,000 17,015,000 15,763,000 17,424,000 21,479,000 17,457,000 16,364,000 16,164,000 13,252,000 10,659,000 13,226,000 27,554,000 31,287,000 24,088,000 22,677,000 23,202,000 23,323,000 20,841,000 21,193,000 
      selling, general and administrative
                 8,704,500 14,418,000 9,516,000 10,884,000 14,223,000 20,978,000 14,799,000 11,217,000 13,748,000 10,854,000 11,794,000 12,603,000 11,289,000 13,471,000 12,314,000 14,215,000 12,461,000 12,806,000 11,559,000 14,204,000 13,522,000 11,853,000 11,569,000 12,634,000 14,481,000 9,880,000 9,938,000 11,972,000 9,790,000 10,040,000 10,435,000 9,518,000 6,880,000 9,636,000 12,085,000 9,152,000 7,556,000 8,937,000 8,359,000 7,842,000 8,383,000 8,865,000 10,920,000 9,183,000 6,772,000 9,387,000 7,547,000 7,780,000 6,551,000 7,223,000 7,008,000 7,519,000 5,611,000 4,925,000 5,987,000         
      revenues:
                                                                                
      patent licensing royalties
                   123,985,000 101,079,000 111,401,000 142,749,000 86,205,000 80,173,000 87,226,000 85,222,000 101,184,000 72,998,000 99,437,000 68,049,000 73,567,000 66,378,000 72,042,000 74,045,000 68,875,000 87,098,000 198,245,000 92,566,000 132,321,000 89,226,000 267,989,000 205,517,000 74,900,000 106,954,000 108,005,000 98,888,000 116,622,000 108,973,000 83,628,000 73,399,000 192,088,000 54,274,000 94,298,000 55,755,000 67,210,000 46,911,000 87,237,000 58,384,000 62,344,000                     
      technology solutions
                   672,000 239,000 414,000 747,000 1,530,000 2,190,000 2,964,000 2,271,000 3,314,000 3,212,000 2,724,000 3,724,000 2,042,000 2,028,000 2,534,000 1,034,000 680,000 346,000 7,059,000 4,759,000 3,458,000 5,304,000 5,879,000 2,790,000 1,015,000 810,000 4,093,000 1,520,000 1,929,000 1,405,000 2,493,000 2,224,000 2,146,000 3,570,000 5,385,000 54,868,000 482,000 452,000 640,000 626,000 527,000                     
      total revenue
                   124,657,000 101,318,000 111,815,000 143,496,000 87,735,000 82,363,000                                                        
      income tax benefit
                     -9,329,000 -4,253,000   769,000 12,843,000  -1,820,000 -7,984,000 178,000 -4,984,000 1,799,000 2,416,000 21,143,000 -1,057,000 4,915,000   -27,074,000 1,624,000   16,652,000  -12,511,000 -13,491,000  -17,676,000 -11,186,750 461,000 -46,658,000 1,450,000   -6,985,000 11,621,000            -26,454,000    4,248,000   -3,218,000    2,201,000 
      patent sales
                              750,000  225,000                  1,999,000        375,000,000 9,000,000                     
      revenues: - sum
                         67,050,250 87,493,000 104,498,000 76,210,000 54,190,750 72,523,000 75,609,000 68,631,000 58,019,500 75,079,000 69,555,000 87,444,000 81,908,500 97,325,000 135,779,000 94,530,000 97,996,500 208,307,000 75,915,000 107,764,000 82,334,250 100,408,000 118,551,000 110,378,000 82,425,000 77,622,000 194,234,000 57,844,000 56,419,500 110,623,000 67,692,000 47,363,000                        
      operating expenses: - sum
                         54,043,250 72,063,000 72,581,000 71,529,000 51,056,000 68,749,000 66,694,000 68,781,000 43,332,000 62,159,000 53,875,000 57,294,000 42,960,750 56,450,000 54,831,000 60,562,000 40,957,250 51,589,000 52,832,000 59,408,000 43,532,000 55,021,000 59,973,000 59,134,000 46,507,000 62,281,000 65,862,000 57,885,000 61,703,000 61,495,000 55,000,000 62,407,000     31,380,000 44,302,000  41,152,000 29,259,250 37,452,000 38,079,000 41,506,000 35,587,000 28,904,000 34,700,000 84,324,000 53,942,000 42,011,000 50,867,000 45,116,000 57,622,000 46,042,000 63,885,000 
      other expense
                                -5,863,000 -5,401,000 -13,953,000 -4,847,000 -6,336,000 -1,774,000 -2,187,000 -2,330,000 -2,814,000 -3,394,000 -3,798,000 -706,000 -7,137,000 -6,444,000 -8,108,000 -7,746,000 -5,236,000 -4,699,000 -3,167,000  -3,964,000 -13,706,000 -2,950,000  -9,480,000                        
      repositioning
                                                        1,544,000             1,634,000  -93,000 37,063,000        
      net income attributable to noncontrolling interest
                                                   -789,000    -632,000 -634,000                        
      net loss attributable to interdigital, inc.
                                                    -1,861,000                            
      net loss per common share — basic
                                                    -50                            
      net loss per common share — diluted
                                                    -50                            
      other income:
                                                                                
      interest and investment income
                                                                 529,000 556,000 889,000 600,000 -3,171,000 531,000 625,000 829,000 643,000 1,117,000 1,231,000 438,000 1,949,000 2,095,000 2,272,000 
      net income per common share-basic
                                                                   790             
      weighted-average number of common shares outstanding-basic
                                                                   43,971,000             
      net income per common share- diluted
                                                                   780             
      weighted-average number of common shares outstanding-diluted
                                                                   44,527,000             
      arbitration and litigation contingencies
                                                                          -2,740,000      
      sales and marketing
                                                                        2,310,000 2,869,000 1,855,000 2,049,000 2,388,000 2,045,000 1,808,000 1,879,000 
      patents administration and licensing
                                                                        10,844,000 10,088,000 13,310,000 20,436,000 15,051,000   18,075,000 
      net income applicable to common shareholders
                                                                         3,829,000 9,209,000 5,852,000 7,317,000 -1,976,000 8,717,000 -4,406,000 
      litigation contingency
                                                                            -1,200,000    
      arbitration award
                                                                             4,153,000  16,612,000 
      net income per common share - basic
                                                                             -40 180 -90 
      weighted-average number of common shares outstanding - basic
                                                                             47,766,000 47,152,000 46,957,000 
      net income per common share - diluted
                                                                             -40 180 -90 
      weighted-average number of common shares outstanding - diluted
                                                                             49,489,000 48,774,000 46,957,000 
                                                                                
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 
                                                                                  
        assets
                                                                                  
        current assets:
                                                                                  
        cash and cash equivalents
      607,599,000 738,960,000 840,270,000 517,894,000 536,639,000 527,360,000 401,090,000 299,762,000 440,242,000 437,076,000 518,483,000 277,599,000 430,625,000 693,479,000 539,651,000 833,533,000 783,016,000 706,282,000 467,606,000 410,144,000 396,156,000 473,474,000 746,561,000 670,292,000 515,793,000 745,491,000 735,886,000 531,698,000 503,240,000 475,056,000 508,829,000 523,779,000 417,481,000 433,014,000 283,557,000 180,952,000 139,073,000 404,074,000 187,162,000 601,388,000 524,307,000 510,207,000 477,643,000 507,036,000 687,200,000 428,567,000 368,799,000 383,046,000 391,453,000 497,714,000 555,543,000 459,023,000 368,688,000 349,843,000 520,892,000 168,985,000 268,628,000 342,211,000 409,653,000 379,589,000 200,117,000 215,451,000 313,620,000 217,431,000 214,368,000 210,863,000 265,771,000 119,862,000 105,401,000 100,144,000 125,375,000 132,077,000 130,376,000 92,018,000 106,291,000 107,954,000 
        short-term investments
      474,260,000 504,200,000 422,868,000 419,091,000 346,653,000 430,848,000 412,120,000 460,581,000 544,393,000 569,280,000 565,436,000 563,124,000 520,059,000 508,298,000 323,772,000 67,076,000 116,204,000 235,345,000 433,200,000 425,759,000 488,559,000 453,173,000 172,822,000 168,953,000 265,107,000 179,204,000 211,737,000 299,461,000 289,805,000 470,724,000 549,521,000 576,782,000 699,136,000 724,981,000 683,655,000 704,435,000 747,067,000 548,687,000 594,387,000 212,510,000 134,387,000 423,501,000 389,801,000 400,559,000 223,981,000 275,361,000 363,893,000 289,856,000 293,140,000 200,737,000 201,299,000 310,769,000 267,120,000 227,436,000 260,435,000 355,134,000 347,374,000 335,783,000 280,938,000 321,524,000 327,324,000 326,218,000 249,960,000 268,364,000 268,020,000 198,943,000 163,952,000 96,778,000 80,499,000 41,516,000 62,291,000 106,118,000 109,769,000 85,449,000 83,533,000 83,679,000 
        accounts receivable
      208,327,000 69,816,000 160,641,000 388,707,000 304,268,000 188,302,000 212,420,000 223,640,000 145,629,000 117,292,000 69,572,000 236,794,000 144,038,000        12,502,000                402,533,000 228,464,000 146,883,000 104,181,000 114,608,000                              30,963,000 35,715,000 37,966,000 130,880,000 124,398,000 105,511,000 
        prepaid and other current assets
      96,491,000 74,994,000 56,927,000 60,717,000 54,636,000 84,312,000 128,106,000 73,135,000 85,172,000 43,976,000 104,198,000 114,630,000 101,692,000 89,716,000 86,028,000 86,393,000 78,355,000 77,545,000 80,304,000 74,797,000 87,663,000 84,224,000 84,292,000 62,387,000 69,337,000 63,365,000 51,545,000 52,656,000 49,579,000 43,438,000 102,793,000 21,970,000 24,992,000 21,506,000 52,966,000 51,590,000 53,562,000 39,894,000 46,306,000 48,402,000 24,794,000 23,391,000 33,884,000 32,473,000 36,701,000 33,530,000 47,768,000 43,177,000 38,566,000 40,036,000 30,519,000 31,416,000 31,039,000 30,197,000 8,859,000 8,624,000 6,239,000 8,824,000 31,478,000 10,850,000 10,492,000 9,119,000 13,292,000 12,410,000 13,792,000 11,111,000 14,685,000 13,068,000 15,370,000 16,467,000 11,181,000 12,416,000 23,331,000 19,332,000 17,453,000 16,348,000 
        total current assets
      1,386,677,000 1,387,970,000 1,480,706,000 1,386,409,000 1,242,196,000 1,230,822,000 1,153,736,000 1,057,118,000 1,215,436,000 1,167,624,000 1,257,689,000 1,192,147,000 1,196,414,000 1,344,675,000 1,352,494,000 1,035,803,000 1,001,213,000 1,050,285,000 1,122,767,000 922,703,000 984,880,000 1,026,879,000 1,031,957,000 921,012,000 875,845,000 1,016,332,000 1,022,523,000 940,998,000 875,946,000 1,024,250,000 1,190,912,000 1,200,519,000 1,208,398,000 1,395,794,000 1,420,304,000 1,336,021,000 1,342,235,000 1,221,119,000 974,738,000 966,481,000 798,096,000 1,010,967,000 1,086,280,000 1,117,194,000 1,117,116,000 843,179,000 959,993,000 1,117,091,000 815,446,000 857,514,000 879,294,000 903,878,000 761,514,000 814,347,000 881,663,000 622,526,000 705,843,000 768,887,000 782,059,000 793,451,000 611,493,000 619,556,000 642,002,000 723,170,000 694,703,000 702,322,000 718,249,000 543,515,000 496,338,000 241,021,000 280,601,000 330,060,000 345,384,000 371,413,000 366,810,000 366,050,000 
        property and equipment
      22,871,000 23,713,000 25,138,000 26,376,000 27,477,000 18,544,000 10,872,000 10,861,000 11,084,000 11,566,000 11,181,000 11,683,000 11,445,000 11,338,000 10,164,000 11,261,000 12,315,000 13,377,000 14,182,000 14,588,000 15,626,000 16,630,000 16,244,000 11,918,000 10,243,000 10,217,000 10,018,000 10,736,000 10,581,000 10,051,000 10,278,000 10,575,000 10,185,000 10,673,000 11,097,000 11,319,000 12,033,000 12,626,000 11,282,000 11,583,000 12,802,000 12,148,000 11,072,000 11,479,000 10,836,000 12,546,000 9,314,000 9,369,000 9,098,000 9,535,000 8,970,000 7,195,000 7,318,000 7,824,000 7,079,000 6,952,000 7,229,000 7,997,000 7,450,000 7,609,000 7,892,000 8,344,000 8,350,000 9,265,000 9,597,000 10,399,000 10,022,000 10,749,000 11,524,000 20,974,000 22,013,000 22,567,000 22,554,000 24,594,000 24,454,000 22,995,000 
        patents
      319,158,000 318,756,000 313,981,000 317,963,000 316,800,000 308,630,000 299,567,000 302,773,000 307,132,000 313,001,000 328,073,000 336,990,000 344,205,000 353,999,000 363,631,000 371,687,000 382,286,000 363,585,000 371,857,000 381,564,000 407,732,000 418,343,000 437,546,000 447,194,000 425,685,000 436,339,000 448,957,000 438,732,000 446,716,000 454,567,000 462,965,000 316,587,000 321,977,000 325,408,000 310,262,000 301,952,000 306,075,000 310,768,000 279,179,000 274,851,000 278,588,000 277,579,000 278,418,000 259,704,000 262,669,000 265,540,000 268,414,000 271,657,000 206,341,000 206,371,000 193,787,000 192,498,000 191,142,000 177,557,000 145,129,000 153,980,000 140,245,000 137,963,000 135,615,000 134,099,000 131,634,000 130,305,000 127,493,000 125,798,000 121,771,000 119,170,000 113,403,000 109,240,000 106,121,000 102,808,000 99,330,000 95,712,000 91,816,000 87,092,000 81,828,000 78,281,000 
        deferred tax assets
      133,328,000 141,326,000 154,729,000 96,468,000 117,414,000 128,133,000 110,739,000 99,627,000 117,309,000 128,967,000 92,065,000 94,278,000 81,748,000 94,373,000 99,817,000 103,047,000 95,998,000 98,408,000 94,850,000 82,826,000 82,216,000 80,380,000 78,664,000 79,897,000 73,811,000 73,168,000 85,437,000 83,202,000 79,766,000 77,225,000 60,056,000 41,750,000 37,934,000 84,582,000 157,385,000 155,699,000 170,976,000 149,532,000 162,352,000 201,572,000 171,863,000 160,572,000 68,873,000 68,409,000 66,165,000 54,019,000 45,357,000 54,677,000 23,241,000 26,197,000 24,541,000 42,061,000 43,155,000 36,997,000 55,175,000 50,950,000 52,573,000 53,990,000 30,968,000 51,754,000 50,984,000 35,136,000 35,328,000 65,879,000 49,714,000 68,500,000 69,176,000 69,297,000 70,355,000 49,002,000 50,791,000 43,734,000 43,942,000 43,734,000 35,135,000 52,558,000 
        other non-current assets
      209,164,000 192,525,000 164,946,000 157,493,000 157,957,000 149,400,000 150,436,000 165,916,000 156,060,000 149,656,000 137,473,000 125,081,000 114,746,000 95,720,000 102,109,000 95,697,000 104,215,000 102,501,000 96,956,000 95,402,000 71,420,000 74,043,000 76,083,000 78,744,000 79,146,000 76,026,000 61,367,000 71,398,000 66,742,000 60,465,000 63,877,000 50,219,000 47,664,000 37,963,000 37,074,000 33,908,000 34,069,000 33,808,000 15,299,000 15,224,000 13,312,000 13,219,000 7,430,000 805,000 956,000 1,543,000 2,064,000 2,167,000 2,299,000 3,137,000 18,635,000 19,087,000 19,590,000 26,194,000 26,554,000 26,970,000 27,550,000 28,011,000 28,276,000 47,904,000 43,282,000 44,684,000 44,824,000 44,858,000 42,132,000 42,242,000 3,396,000 8,622,000 9,327,000 10,510,000 36,829,000 35,834,000 35,398,000 36,952,000 37,271,000 26,048,000 
        total assets
      2,071,198,000 2,064,290,000 2,139,500,000 1,984,709,000 1,861,844,000 1,835,529,000 1,725,350,000 1,636,295,000 1,807,021,000 1,770,814,000 1,826,481,000 1,760,179,000 1,748,558,000 1,900,105,000 1,928,215,000 1,617,495,000 1,596,027,000 1,628,156,000 1,700,612,000 1,497,083,000 1,561,874,000 1,616,275,000 1,640,494,000 1,538,765,000 1,464,730,000 1,612,082,000 1,628,302,000 1,545,066,000 1,479,751,000 1,626,558,000 1,788,088,000 1,619,650,000 1,626,158,000 1,854,420,000 1,936,122,000 1,838,899,000 1,865,388,000 1,727,853,000 1,442,850,000 1,469,711,000 1,274,661,000 1,474,485,000 1,448,692,000 1,461,122,000 1,457,773,000 1,194,591,000 1,297,394,000 1,423,329,000 1,080,359,000 1,113,183,000 1,129,585,000 1,153,903,000 1,014,687,000 1,056,609,000 1,115,606,000 860,265,000 932,417,000 996,968,000 1,022,012,000 1,040,022,000 839,432,000 874,643,000 913,663,000 944,724,000 926,091,000 905,785,000 910,558,000 703,085,000 663,603,000 405,768,000 446,461,000 499,007,000 509,986,000 534,885,000 536,378,000 507,220,000 
        liabilities and shareholders' equity
                                                                                  
        current liabilities:
                                                                                  
        current portion of long-term debt
      377,787,000 458,376,000 456,258,000 455,750,000 455,241,000 456,329,000 454,250,000 453,766,000 579,369,000 578,752,000 125,774,000 125,628,000              94,170,000 93,131,000 91,954,000 302,514,000             227,174,000 224,348,000 221,607,000 218,866,000            104,000 180,000 254,000 301,000 318,000 288,000 286,000 291,000 300,000 584,000 586,000 580,000 1,628,000 1,608,000 1,602,000 274,000 1,018,000 1,311,000 1,006,000 295,000 
        accounts payable
      17,342,000 10,048,000 9,115,000 8,046,000 9,466,000 12,206,000 8,015,000 8,091,000 12,726,000 7,846,000 10,544,000 8,313,000 8,464,000 9,997,000 7,413,000 9,222,000 6,013,000 7,155,000 9,555,000 7,043,000 8,592,000 10,979,000 12,137,000 11,394,000 12,204,000 13,393,000 12,713,000 14,455,000 22,875,000 19,367,000 17,528,000 9,393,000 13,629,000 10,260,000 11,400,000 11,452,000 17,694,000 14,050,000 12,488,000 19,013,000 18,293,000 19,002,000 14,716,000 12,201,000 9,319,000 34,654,000 31,661,000 32,452,000 9,666,000 24,504,000 13,230,000 13,112,000 9,269,000 9,600,000 16,052,000 7,367,000 4,274,000 7,110,000 5,496,000 5,326,000 5,739,000 7,572,000 9,546,000 9,328,000 8,735,000 6,284,000 4,502,000 7,799,000 10,583,000 9,127,000 17,927,000 17,763,000 41,231,000 40,850,000 32,168,000 30,989,000 
        accrued compensation and related expenses
      32,795,000 50,050,000 37,602,000 28,766,000 24,714,000 42,575,000 38,966,000 29,758,000 23,437,000 32,665,000 29,981,000 22,315,000 18,565,000 38,400,000 34,573,000 20,215,000 20,754,000 32,638,000 33,838,000 30,310,000 21,527,000 32,413,000 27,043,000 24,002,000 18,937,000 29,162,000 26,440,000 25,214,000 15,649,000 26,838,000 19,384,000 16,432,000 12,753,000 24,571,000 18,033,000 15,428,000 11,145,000 22,065,000 15,870,000 14,011,000 9,953,000 26,013,000 17,259,000 13,799,000 12,221,000 27,089,000 25,345,000 18,797,000 9,934,000 15,403,000 11,910,000 8,993,000 7,832,000 20,661,000 20,689,000 17,420,000 11,229,000 14,129,000 11,402,000 9,231,000 6,565,000 22,933,000 18,288,000 15,606,000 12,247,000 10,592,000 5,578,000 7,758,000 7,290,000 33,038,000 21,862,000 18,269,000 15,591,000 10,476,000 8,771,000 7,207,000 
        deferred revenue
      261,103,000 193,722,000 234,510,000 178,291,000 175,261,000 178,009,000 156,885,000 156,792,000 155,966,000 153,597,000 167,615,000 172,650,000 178,816,000 189,059,000 210,981,000 168,461,000 238,626,000 291,673,000 325,375,000 158,899,000 192,422,000 219,935,000 248,086,000 141,528,000 126,298,000 146,654,000 171,433,000 82,575,000 84,816,000 111,672,000 134,197,000 76,777,000 75,652,000 307,142,000 351,012,000 294,876,000 328,324,000 360,192,000 175,673,000  109,951,000 106,229,000 116,352,000 110,198,000 113,245,000 124,695,000 127,746,000 127,466,000 58,538,000 60,176,000 71,225,000 116,858,000 111,949,000 106,305,000 94,664,000 117,877,000 108,212,000 134,087,000 133,467,000 132,962,000 132,923,000 134,804,000 157,997,000 169,855,000 181,441,000 193,409,000 193,527,000 177,296,000 177,748,000 78,646,000 82,890,000 81,585,000 74,735,000 78,899,000 80,470,000 74,941,000 
        dividends payable
      18,106,000  18,041,000 15,507,000 15,577,000  11,366,000 10,052,000 10,155,000  10,348,000 9,273,000 9,449,000  10,382,000 10,380,000 10,803,000  10,740,000 10,794,000 10,766,000  10,782,000 10,781,000 10,762,000  10,897,000 10,895,000 11,195,000  11,996,000 12,193,000 12,164,000  12,149,000 10,413,000 10,404,000  10,285,000 6,861,000 6,923,000  7,183,000 7,243,000 7,232,000  7,666,000 8,033,000 3,954,000  4,119,000 4,118,000 4,115,000  4,095,000 4,348,000 4,469,000                    
        other accrued expenses
      31,207,000 22,326,000 29,584,000 22,498,000 24,198,000 25,134,000 42,289,000 40,888,000 122,166,000 98,042,000 101,185,000 108,325,000 39,099,000 23,506,000 27,112,000 24,673,000 32,416,000 29,354,000 38,521,000 27,175,000 19,927,000 21,289,000 19,243,000 16,123,000 17,407,000 11,382,000 19,492,000 17,168,000 11,097,000 8,383,000 12,425,000 12,811,000 11,736,000 7,431,000 8,545,000 8,259,000 7,908,000 8,223,000 8,356,000 10,340,000 12,659,000 13,082,000 12,123,000 18,900,000 13,231,000 11,275,000 13,721,000 14,129,000 21,173,000 15,268,000 24,331,000 21,464,000 29,935,000 32,387,000 10,415,000 13,849,000 8,838,000 9,812,000 8,698,000 8,634,000 7,420,000 4,762,000 5,959,000 6,180,000 8,024,000 7,866,000 6,898,000 9,365,000 10,787,000 4,118,000 8,782,000 10,696,000 13,424,000 9,973,000 8,821,000 9,306,000 
        total current liabilities
      738,340,000 752,502,000 785,110,000 708,858,000 704,457,000 725,810,000 711,771,000 699,347,000 903,819,000 881,128,000 445,447,000 446,504,000 254,393,000 271,346,000 290,461,000 232,951,000 308,612,000 371,561,000 418,029,000 234,221,000 253,234,000 295,762,000 317,412,000 203,930,000 185,833,000 305,558,000 334,299,000 242,898,000 448,153,000 179,395,000 293,552,000 128,297,000 126,190,000 376,441,000 440,439,000 379,678,000 414,665,000 425,480,000 238,243,000 371,375,000 171,225,000 399,973,000 406,582,000 398,353,000 385,664,000 205,169,000 217,689,000 245,423,000 105,846,000 126,438,000 126,547,000 166,047,000 164,338,000 172,913,000 279,666,000 165,427,000 141,558,000 173,153,000 167,626,000 164,780,000 160,236,000 178,560,000 224,416,000 252,492,000 259,390,000 252,560,000 244,091,000 235,798,000 241,036,000 126,537,000 133,734,000 128,587,000 145,999,000 157,184,000 146,908,000 138,575,000 
        long-term debt
      10,500,000 16,292,000 17,142,000 16,566,000 16,015,000 15,443,000 18,302,000 17,687,000 28,029,000 29,019,000 485,476,000 483,917,000 607,914,000 607,066,000 605,859,000 604,245,000 424,100,000 422,745,000 421,420,000 420,598,000 419,396,000 367,992,000 363,523,000 359,119,000 354,823,000 350,588,000 346,397,000 342,417,000 19,061,000 317,377,000 313,527,000 291,947,000 288,506,000 285,126,000 281,774,000 278,479,000 275,222,000 272,021,000 268,847,000 265,728,000 262,635,000 259,595,000 256,560,000 253,593,000 250,674,000 217,835,000 215,502,000 213,247,000 210,992,000 208,813,000 206,635,000 204,530,000 202,425,000 200,391,000 198,357,000 196,392,000 194,427,000 192,529,000 190,630,000 188,822,000 104,000 180,000 254,000 327,000 398,000 468,000 540,000 886,000 963,000 1,321,000 1,394,000 2,264,000 2,334,000 2,406,000 1,833,000 1,093,000 
        long-term deferred revenue
      159,362,000 135,882,000 177,403,000 113,631,000 149,117,000 182,119,000 216,665,000 166,263,000 193,955,000 223,866,000 255,091,000 172,582,000 205,057,000 237,580,000 276,589,000 45,075,000 51,869,000 19,463,000 66,673,000 82,446,000 112,153,000 108,069,000 108,587,000 139,396,000 104,497,000 123,653,000 107,498,000 121,477,000 138,567,000 157,634,000 135,465,000 153,296,000 165,966,000 309,671,000 373,049,000 358,369,000 398,960,000 261,013,000 309,513,000 298,675,000 331,162,000 289,039,000 290,100,000 312,592,000 333,138,000 293,342,000 332,269,000 363,347,000 233,355,000 243,864,000 248,989,000 265,098,000 142,276,000 161,820,000 67,252,000 87,417,000 140,681,000 153,953,000 205,776,000 250,551,000 289,783,000 332,174,000 373,143,000 417,252,000 434,030,000 474,844,000 528,325,000 356,394,000 329,135,000 181,056,000 213,549,000 245,698,000 228,890,000 224,545,000 220,489,000 214,994,000 
        other long-term liabilities
      58,910,000 58,494,000 59,869,000 58,870,000 55,371,000 54,942,000 56,075,000 56,221,000 56,927,000 55,252,000 52,685,000 56,820,000 55,893,000 53,600,000 53,511,000 49,980,000 50,780,000 61,470,000 59,173,000 43,573,000 44,518,000 47,886,000 48,296,000 45,614,000 43,981,000 46,002,000 36,809,000 38,034,000 48,457,000 34,139,000 30,495,000 9,886,000 9,764,000 10,034,000 8,844,000 16,717,000 16,400,000 14,971,000 10,975,000 10,775,000 4,471,000 3,983,000 3,840,000 3,753,000 3,960,000 2,568,000 1,692,000 988,000 904,000 248,000 90,000   2,780,000 3,377,000 2,922,000 2,479,000 5,651,000 9,390,000 14,228,000 12,605,000 10,613,000 10,504,000 9,143,000 5,106,000 8,376,000 12,639,000 11,489,000 10,315,000 9,194,000 7,935,000 6,774,000 5,621,000 13,683,000 12,597,000 13,423,000 
        total liabilities
      967,112,000 963,170,000 1,039,524,000 897,925,000 924,960,000 978,314,000 1,002,813,000 939,518,000 1,182,730,000 1,189,265,000 1,238,699,000 1,159,823,000 1,123,257,000 1,169,592,000 1,226,420,000 932,251,000 835,361,000 875,239,000 965,295,000 780,838,000 829,301,000 819,709,000 837,818,000 748,059,000 689,134,000 825,801,000 825,003,000 744,826,000 654,238,000 688,545,000 773,039,000 583,426,000 590,426,000 981,272,000 1,104,106,000 1,033,243,000 1,105,247,000 973,485,000 827,578,000 946,553,000 769,493,000 952,590,000 957,082,000 968,291,000 973,436,000 718,914,000 767,152,000 823,005,000 551,097,000 579,363,000 582,261,000 635,675,000 509,039,000 537,904,000 548,652,000 452,158,000 479,145,000 525,286,000 573,422,000 618,381,000 462,728,000 521,527,000 608,317,000 679,214,000 698,924,000 736,248,000 785,595,000 604,567,000 581,449,000 318,108,000 356,612,000 383,323,000 382,844,000 397,818,000 381,827,000 368,085,000 
        commitments and contingencies
                                                                                  
        shareholders' equity:
                                                                                  
        preferred stock, 0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding
                                                                                  
        common stock, 0.01 par value...
      719,000 709,000 709,000 709,000 708,000 705,000 701,000 699,000 696,000 694,000 694,000 693,000 693,000 719,000 719,000 719,000 718,000 717,000 716,000 715,000 714,000 714,000 713,000 713,000 713,000 712,000 712,000 712,000 712,000 711,000 711,000 710,000 709,000 707,000 707,000 707,000 707,000 703,000 703,000 703,000 703,000 701,000 701,000 701,000 701,000 698,000 698,000 698,000 698,000 696,000 696,000 696,000 696,000 695,000 693,000 693,000 693,000 691,000 690,000 689,000 689,000 686,000 677,000 676,000 675,000 668,000 666,000 664,000         
        additional paid-in capital
      1,063,941,000 816,903,000 804,328,000 805,073,000 793,624,000 808,540,000 794,644,000 789,708,000 744,073,000 742,981,000 734,627,000 726,852,000 719,129,000 717,102,000 710,007,000 704,370,000 715,342,000 713,599,000 762,178,000 745,472,000 738,619,000 738,481,000 735,922,000 734,565,000 729,541,000 727,402,000 725,891,000 724,170,000 683,615,000 685,512,000 683,140,000 678,434,000 672,692,000 680,040,000 675,872,000 671,783,000 667,152,000 683,549,000 675,825,000 670,893,000 666,426,000 663,073,000 657,322,000 653,892,000 651,344,000 614,162,000 611,251,000 607,231,000 599,493,000 598,325,000 593,564,000 586,700,000 583,755,000 579,852,000 577,240,000 575,681,000 573,708,000 573,950,000 568,985,000 563,128,000 530,633,000 525,767,000 507,556,000 503,203,000 499,891,000 491,068,000 485,230,000 479,165,000 474,660,000 471,468,000 469,370,000 467,082,000 465,656,000 465,599,000 462,647,000 456,141,000 
        retained earnings
      2,170,071,000 2,113,240,000 2,088,823,000 2,039,921,000 1,875,398,000 1,775,823,000 1,654,774,000 1,632,401,000 1,533,232,000 1,462,070,000 1,433,658,000 1,396,393,000 1,384,243,000 1,492,046,000 1,470,335,000 1,458,674,000 1,448,138,000 1,441,105,000 1,364,378,000 1,349,073,000 1,358,380,000 1,413,969,000 1,426,239,000 1,413,382,000 1,402,048,000 1,412,779,000 1,409,870,000 1,418,628,000 1,421,884,000 1,426,266,000 1,436,171,000 1,426,888,000 1,428,437,000 1,249,091,000 1,209,012,000 1,185,836,000 1,143,955,000 1,120,766,000 994,967,000 900,966,000 868,018,000 847,033,000 821,058,000 803,864,000 778,719,000 757,050,000 750,923,000 745,320,000 674,797,000 680,718,000 670,291,000 647,826,000 642,753,000 659,235,000 709,955,000 478,427,000 473,145,000 466,727,000 448,591,000 427,027,000 414,506,000 395,799,000 366,076,000 330,561,000 295,598,000 246,771,000 207,895,000 177,274,000 150,829,000 159,515,000 155,686,000 146,477,000 140,625,000 133,308,000 135,284,000 126,523,000 
        accumulated other comprehensive gain
      -636,000  220,000    134,000                                                                      
        treasury stock
      -2,130,009,000 -1,830,031,000 -1,794,104,000 -1,758,812,000 -1,732,644,000 -1,727,395,000 -1,727,716,000 -1,724,799,000 -1,652,568,000 1,623,549,000 1,583,403,000 1,526,545,000 1,484,056,000 1,484,056,000 1,484,056,000 1,484,056,000 1,409,611,000 1,409,611,000 1,402,611,000 1,390,752,000 1,385,361,000 1,379,611,000 1,379,611,000 1,379,611,000 1,379,611,000 1,379,262,000 1,354,262,000 1,354,262,000 1,291,979,000 1,182,993,000 1,115,995,000 1,081,660,000 1,078,512,000 1,072,488,000 1,064,795,000 1,064,795,000 1,064,795,000 1,064,795,000 1,064,795,000 1,059,105,000 1,040,509,000 1,000,110,000 992,752,000 974,272,000 954,431,000 903,700,000 839,097,000 759,530,000 751,075,000 751,075,000 721,941,000 721,941,000 721,941,000 721,941,000 721,941,000 646,992,000 594,572,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 569,247,000 558,950,000 544,227,000 544,227,000 535,830,000 498,725,000 480,214,000 462,699,000 444,134,000 444,134,000 
        total shareholders' equity
      1,104,086,000 1,101,120,000 1,099,976,000 1,086,784,000 936,884,000 857,215,000 722,537,000 696,777,000 624,291,000                                                                    
        total liabilities and shareholders' equity
      2,071,198,000 2,064,290,000 2,139,500,000 1,984,709,000 1,861,844,000 1,835,529,000 1,725,350,000 1,636,295,000 1,807,021,000                                                                 534,885,000   
        dividend payable
       17,980,000    11,557,000    10,226,000    10,384,000    10,741,000    10,786,000    10,746,000    11,627,000    12,156,000    10,290,000    7,068,000    7,456,000    4,031,000        4,570,000 4,549,000 4,540,000 4,535,000 4,526,000               
        accumulated other comprehensive income
       299,000                     8,000 370,000               24,000 210,000 74,000 -178,000 -6,000 126,000  118,000  368,000 -402,000 -14,000 154,000 1,112,000 1,019,000 864,000 1,007,000 298,000 298,000 -439,000 -429,000 44,000 123,000 111,000 284,000 317,000 250,000 277,000 419,000 365,000 231,000 245,000 -35,000 193,000 419,000 206,000 101,000  
        accumulated other comprehensive loss
         -107,000 -202,000 -458,000  -1,232,000 -1,142,000 -647,000 -2,146,000 -2,176,000 -337,000 -916,000 -1,230,000 -938,000 -881,000 -571,000 -390,000 -323,000 -254,000 -184,000   -42,000 -74,000 -105,000 -350,000 -1,426,000 -2,471,000 -3,436,000 -3,903,000 -4,279,000 -2,083,000 -695,000 -601,000 -559,000 -514,000       113,000  -168,000                             -44,000 
        total non-current assets
               603,190,000 568,792,000 568,032,000 552,144,000  575,721,000 581,692,000 594,814,000  577,845,000 574,380,000 576,994,000                                                        
        liabilities and shareholders’ equity
                                                                                  
        shareholders’ equity:
                                                                                  
        shareholders’ equity: - sum
               2,205,098,000 2,166,833,000 2,121,762,000 2,103,728,000 2,208,951,000 2,179,831,000 2,162,825,000 2,163,317,000 2,154,850,000 2,126,882,000 2,094,937,000 2,097,459,000 2,152,980,000 2,162,882,000 2,149,030,000 2,132,260,000 2,140,819,000 2,136,368,000 2,143,160,000 2,104,785,000 2,110,018,000 2,116,586,000 2,102,129,000 2,097,559,000 1,927,755,000 1,884,896,000 1,857,725,000 1,811,255,000 1,804,504,000 1,671,519,000 1,572,772,000 1,535,221,000 1,510,629,000 1,479,075,000 1,458,583,000 1,430,877,000 1,372,028,000 1,362,704,000 1,353,617,000 1,274,586,000 1,279,725,000 1,264,705,000 1,236,334,000 1,228,223,000 1,240,646,000     1,017,837,000  945,951,000   834,757,000 796,414,000 738,784,000 694,210,000 657,468,000 626,381,000 631,887,000 625,679,000 614,409,000 607,356,000 599,766,000 598,685,000 583,269,000 
        total interdigital, inc. shareholders’ equity
               581,549,000 583,430,000 595,217,000 619,672,000 724,895,000 695,775,000 678,769,000 753,706,000 745,239,000 724,271,000 704,185,000 712,098,000 773,369,000 783,271,000 769,419,000 752,649,000 761,557,000 782,106,000 788,898,000 812,806,000 927,025,000 1,000,591,000 1,020,469,000 1,019,047,000 855,267,000 820,101,000 792,930,000 746,460,000 739,709,000 606,724,000 513,667,000 494,712,000 510,519,000 486,323,000 484,311,000 476,446,000 468,328,000 523,607,000 594,087,000 523,511,000 528,650,000 542,764,000 514,393,000 506,282,000                        
        noncontrolling interest
                4,352,000 5,139,000 5,629,000 5,618,000 6,020,000 6,475,000 6,960,000 7,678,000 11,046,000 12,060,000 20,475,000 23,197,000 19,405,000 21,287,000 22,947,000 24,724,000 21,193,000 11,342,000 12,707,000 10,988,000 14,458,000 15,755,000 16,685,000 17,881,000 11,915,000 12,726,000 13,681,000 14,659,000 8,548,000 9,491,000 10,456,000 11,376,000 5,287,000 8,520,000 7,891,000 7,349,000 6,635,000 6,237,000 5,751,000 5,170,000 4,560,000 3,835,000 -634,000                        
        total equity
               581,549,000 587,782,000 600,356,000 625,301,000 730,513,000 701,795,000 685,244,000 760,666,000 752,917,000 735,317,000 716,245,000 732,573,000 796,566,000 802,676,000 790,706,000 775,596,000 786,281,000 803,299,000 800,240,000 825,513,000 938,013,000 1,015,049,000 1,036,224,000 1,035,732,000 873,148,000 832,016,000 805,656,000 760,141,000 754,368,000 615,272,000 523,158,000 505,168,000 521,895,000 491,610,000 492,831,000 484,337,000 475,677,000 530,242,000 600,324,000 529,262,000 533,820,000 547,324,000 518,228,000 505,648,000                        
        total liabilities and shareholders’ equity
               1,770,814,000 1,826,481,000 1,760,179,000 1,748,558,000 1,900,105,000 1,928,215,000 1,617,495,000 1,596,027,000 1,628,156,000 1,700,612,000 1,497,083,000 1,561,874,000 1,616,275,000 1,640,494,000 1,538,765,000 1,464,730,000 1,612,082,000 1,628,302,000 1,545,066,000 1,479,751,000 1,626,558,000 1,788,088,000 1,619,650,000 1,626,158,000 1,854,420,000 1,936,122,000 1,838,899,000 1,865,388,000 1,727,853,000 1,442,850,000 1,469,711,000 1,274,661,000 1,474,485,000 1,448,692,000 1,461,122,000 1,457,773,000 1,194,591,000 1,297,394,000 1,423,329,000 1,080,359,000 1,113,183,000 1,129,585,000 1,153,903,000 1,014,687,000 1,056,609,000 1,115,606,000 860,265,000 932,417,000 996,968,000 1,022,012,000 1,040,022,000 839,432,000 874,643,000 913,663,000 944,724,000 926,091,000 905,785,000 910,558,000 703,085,000 663,603,000 405,768,000 446,461,000 499,007,000 509,986,000  536,378,000 507,220,000 
        accounts receivable, less allowances
                   53,182,000 403,043,000 48,801,000 23,638,000 31,113,000 141,657,000 12,003,000  16,008,000 28,282,000 19,380,000 25,608,000 28,272,000 23,355,000 57,183,000 33,322,000 35,032,000 29,769,000 77,988,000 66,789,000 216,293,000 400,126,000 399,044,000      53,868,000 116,079,000 108,717,000 103,069,000 51,702,000 134,176,000 346,335,000 69,046,000 92,830,000 67,392,000 60,609,000 51,512,000 169,874,000 36,302,000 38,833,000 31,029,000 28,079,000 29,022,000 29,734,000 22,576,000 33,632,000 29,802,000 159,086,000 148,809,000 212,905,000 204,665,000 244,510,000 224,713,000 33,892,000       
        taxes payable
                           360,000 121,000 102,000 225,000 51,000 193,000 637,000 7,000 1,508,000 98,022,000 691,000 256,000 14,881,000 39,300,000 39,250,000 39,190,000 10,660,000 15,571,000 11,810,000 13,446,000 1,405,000 14,601,000 14,405,000 11,550,000  11,550,000 44,546,000 2,581,000 7,056,000 1,732,000 1,502,000 1,238,000 3,960,000 133,751,000 4,566,000 4,432,000 3,265,000 3,760,000 3,786,000 2,736,000 3,675,000 32,340,000 51,232,000 48,643,000 33,825,000 33,000,000 33,000,000 33,000,000  671,000   15,675,000 15,672,000 15,837,000 
        deferred revenue, including customer advances
                                             309,340,000                                     
        total shareholders’ equity
                                                           518,705,000 566,954,000 408,107,000 453,272,000 471,682,000 448,590,000 421,641,000 376,704,000 353,116,000 305,346,000 265,510,000 227,167,000 169,537,000 124,963,000 98,518,000 82,154,000 87,660,000 89,849,000 115,684,000 127,142,000 137,067,000 154,551,000 139,135,000 
        preferred stock, 0.10 par value, 0 and 14,399 shares authorized 0 shares issued and outstanding
                                                                                  
        intangible assets
                                                                           22,731,000       
        preferred stock, 0.10 par value, 14,399 shares authorized 0 shares issued and outstanding
                                                                                  
        investment in other entities
                                                                        26,651,000          
        preferred stock, .10 par value, 14,399 shares authorized 0 shares issued and outstanding
                                                                                  
        common stock, .01 par value...
                                                                          661,000 659,000 658,000 657,000 656,000 653,000 653,000 649,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-06-30 2009-12-31 2009-06-30 2009-03-31 2008-12-31 2008-06-30 2008-03-31 2007-12-31 2007-09-30 
                                                                               
          cash flows from operating activities:
                                                                               
          net income
        75,329,000 42,971,000 67,503,000 180,568,000 115,602,000 133,108,000 34,190,000 109,664,000 81,652,000 39,086,000 47,154,000 21,293,000 103,520,000 32,006,000 21,767,000 20,584,000 17,704,000 19,813,000 25,214,000 -6,797,000 3,958,000 -2,891,000 21,902,000 20,591,000 -1,661,000 11,952,000 835,000 6,378,000 -4,214,000 860,000 20,110,000 9,776,000 28,729,000 51,667,000 34,725,000 51,544,000 32,778,000 135,777,000 103,523,000 39,029,000 27,151,000 32,319,000 23,788,000 31,955,000 28,332,000 13,228,000 12,635,000   13,870,000 26,110,000 8,606,000 -12,903,000 15,532,000 235,669,000 9,673,000 10,930,000 22,767,000 26,206,000 17,156,000 23,339,000 34,311,000 83,790,000 38,876,000 17,759,000 -8,686,000 3,829,000 13,169,000 7,317,000 -1,976,000 8,717,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                               
          depreciation and amortization
        19,208,000 20,049,000 19,804,000 19,465,000 18,213,000 17,748,000 17,549,000 17,376,000 17,240,000 19,094,000 19,527,000 19,645,000 19,526,000 19,422,000 18,713,000 21,154,000 19,282,000 19,222,000 19,421,000 19,689,000 19,861,000 20,014,000 20,660,000 21,207,000 19,160,000 20,187,000 19,265,000 19,128,000 18,514,000 19,084,000 17,686,000 14,639,000 14,699,000 14,244,000 14,554,000 13,727,000 14,528,000 13,603,000 13,208,000 13,066,000 12,876,000 12,479,000 11,891,000 11,783,000 11,640,000 11,524,000 12,350,000 9,021,000 9,351,000 9,322,000 7,851,000 8,233,000 7,979,000 7,035,000 6,627,000 6,299,000 6,287,000 6,079,000 5,975,000 5,909,000 5,842,000 5,670,000 10,803,000 5,118,000 12,874,000 8,217,000 7,732,000 13,698,000 6,876,000 6,418,000 5,682,000 
          change in deferred revenue
        85,861,000 -82,309,000 119,991,000 -32,456,000 -38,750,000 -20,422,000 50,495,000 -26,866,000 -27,542,000 -45,243,000 77,474,000 -38,641,000 -42,766,000 -60,931,000 274,034,000 -76,959,000 -50,741,000 -80,912,000 150,703,000 -63,230,000 -23,429,000 -28,669,000 75,749,000 16,829,000 -39,512,000 -8,624,000 63,629,000 -19,331,000 -43,423,000 -2,856,000 36,989,000                                         
          deferred income taxes
        8,247,000 13,382,000 -58,348,000 20,921,000 10,651,000 -17,237,000 -11,475,000 17,706,000 11,789,000 -37,300,000 2,205,000 -12,041,000 12,471,000 5,360,000 3,308,000 7,358,000 2,492,000 6,913,000 -12,007,000 -592,000 -1,817,000 -1,664,000 1,402,000 -6,169,000 -751,000 12,137,000 -2,300,000 -2,913,000 -2,801,000 -17,753,000 -18,306,000 -3,816,000 -5,551,000 72,803,000 -1,686,000 15,277,000 -21,444,000 15,041,000 39,220,000 -29,709,000 -11,291,000 -26,207,000 5,984,000 -7,988,000 -6,559,000 -22,836,000 -25,244,000 -7,306,000 -7,593,000 -9,383,000 19,866,000 4,972,000 -10,594,000 42,672,000 -9,569,000 3,336,000 3,977,000 -8,520,000 9,133,000 -12,598,000 10,775,000 19,432,000 -7,360,000 7,861,000 -43,530,000 -53,922,000 1,753,000  -208,000 2,582,000 5,254,000 
          share-based compensation
        10,339,000 12,521,000 9,301,000 11,836,000 9,498,000 17,844,000 9,081,000 9,655,000 9,386,000 8,876,000 10,335,000 8,740,000 7,790,000 6,918,000 5,846,000 3,977,000 5,386,000 7,726,000 15,082,000 3,775,000 2,153,000 2,543,000 1,268,000 4,628,000 2,003,000 1,586,000 1,805,000 2,116,000 2,096,000 2,214,000 2,238,000 1,821,000 816,000 4,161,000 3,923,000 4,661,000 5,317,000 6,539,000 4,721,000 3,937,000 6,643,000 5,448,000 3,392,000 3,321,000 2,978,000 5,036,000 3,737,000 7,612,000 2,109,000 4,105,000 4,044,000 2,273,000 5,518,000 1,858,000 1,502,000 1,563,000 1,572,000 2,079,000 2,669,000 1,691,000 1,676,000 1,867,000 2,634,000 2,169,000 5,225,000 2,919,000 845,000 2,885,000 1,491,000 2,829,000 2,408,000 
          other
        -944,000 -4,791,000        299,000 35,000 14,000 67,000         475,000 -322,000 -849,000 1,108,000 -1,000 624,000 -623,000 169,000 33,000 -4,000 2,000 -3,000 -2,000 1,000 11,000 -138,000 54,000 -141,000 152,000 -545,000 92,000 539,000 316,000 -32,000 -100,000 388,000 -214,000 581,000 80,000 -23,000 -64,000 -695,000 834,000 15,000 63,000 -47,000 -315,000 61,000 10,000 161,000 -11,000 -181,000 -74,000 -12,000 -248,000 -211,000 106,000 58,000 
          increase in assets:
                                                                               
          receivables
        -138,511,000 90,825,000 228,066,000 -84,439,000 -115,966,000 24,118,000 11,220,000 -78,011,000 -28,337,000 -47,720,000 167,222,000 -92,756,000 -90,856,000 349,861,000 -354,242,000 -25,163,000 7,475,000 110,546,000 -129,655,000 499,000 3,507,000 11,364,000 -8,902,000 6,228,000 2,664,000 -4,917,000 33,828,000 -23,894,000 1,725,000 -5,246,000 53,334,000 -40,869,000 24,396,000 183,833,000 -1,082,000 3,489,000 -174,069,000 -76,912,000 -42,702,000 10,427,000 -60,740,000 62,211,000 -7,362,000 -5,648,000 -51,367,000 82,474,000 212,159,000 -292,289,000 23,784,000 -25,438,000 -6,783,000 -9,097,000 118,362,000 -133,572,000 2,531,000 -7,804,000 -2,950,000 943,000 712,000 -7,158,000 11,056,000 -3,830,000 53,819,000 -8,240,000 -210,618,000 -190,821,000 -2,929,000 95,165,000 92,914,000 -6,482,000 -18,887,000 
          deferred charges and other assets
        -44,764,000 -34,862,000 -6,642,000 -11,843,000 -2,201,000 46,072,000 -40,182,000 -13,574,000 -27,577,000 55,250,000 -2,566,000 -20,727,000 -31,091,000 -605,000 -14,282,000 4,206,000 -2,772,000 3,570,000 -7,080,000 -7,015,000 631,000 489,000 -25,275,000 188,000 -1,658,000 -25,025,000 4,282,000 -7,105,000 642,000 57,718,000 -56,990,000 2,307,000 -9,100,000 32,742,000 -2,102,000 2,272,000 -13,486,000 7,476,000 2,260,000 -23,614,000 -1,344,000 9,778,000 -831,000 3,027,000 -3,485,000 13,958,000 -4,611,000 -4,991,000 1,800,000 -9,510,000 376,000 228,000 -847,000 -20,923,000                  
          increase in liabilities:
                                                                               
          accounts payable
        6,800,000 1,542,000 1,607,000 -929,000 1,730,000 4,375,000 -1,481,000 -4,133,000 3,522,000 -3,394,000 1,836,000 1,852,000 -2,807,000 3,383,000 -2,216,000 5,281,000 420,000 -4,069,000 2,641,000 -84,000 -291,000 -1,175,000 1,900,000 -1,098,000 -2,477,000 1,909,000 558,000 -9,274,000 6,169,000 563,000 8,498,000 -3,941,000 1,083,000 -591,000 39,000 -5,753,000 2,516,000 1,640,000 -6,444,000 472,000 -1,232,000 2,494,000 1,462,000 2,926,000 -4,379,000 3,620,000 -1,573,000 2,176,000 -14,619,000 15,182,000 -2,442,000 5,452,000 -3,537,000 -5,885,000 7,432,000 2,385,000 -1,479,000 1,696,000 -163,000 -1,154,000 -950,000 -1,817,000 1,703,000 1,471,000 -764,000 856,000 2,067,000 -22,590,000 -2,894,000 10,130,000 -1,322,000 
          accrued compensation and other expenses
        -5,484,000 701,000 15,254,000 2,780,000 -17,709,000 -11,489,000 22,616,000 -13,462,000 13,054,000 -2,972,000 -3,030,000 73,177,000 -2,614,000 101,000 27,659,000 -7,979,000 -18,716,000 -8,735,000 30,566,000 14,403,000 -16,234,000 6,187,000 8,388,000 4,311,000 -5,071,000 3,271,000 4,102,000 15,730,000 -13,404,000 5,872,000 -2,713,000 4,876,000 -7,781,000 -1,420,000 2,555,000 5,452,000 -9,805,000 15,241,000 -195,000 6,084,000 -19,356,000 9,640,000 -3,355,000 894,000 -19,476,000 -644,000 6,214,000 1,700,000 -1,417,000 -5,185,000 8,446,000 -7,663,000 -20,120,000                   
          net cash from operating activities
        16,081,000 63,391,000 395,930,000 105,118,000 -19,989,000 192,034,000 77,631,000 -48,910,000 50,773,000 -23,585,000 310,610,000 -45,440,000 -27,852,000 356,508,000 -18,729,000 -33,768,000 -17,972,000 71,229,000 96,264,000 -27,259,000 -9,842,000 19,255,000 101,342,000 69,755,000 -26,885,000 17,457,000 125,499,000 -22,742,000 -30,781,000 -29,825,000 170,385,000 6,827,000 -595,000 217,459,000 104,749,000 19,447,000 -25,855,000 233,282,000 -10,171,000 191,434,000 16,233,000 86,777,000 656,000 25,295,000 1,771,000 55,984,000 155,748,000 33,140,000 -2,859,000 -545,000 -1,030,000 143,512,000 76,238,000 -122,814,000 341,752,000 -15,625,000 -25,705,000 -1,778,000 -1,303,000 -26,050,000 -5,207,000 -29,221,000 81,548,000 -11,808,000 103,290,000 51,031,000 -19,984,000 117,503,000 86,344,000 19,111,000 12,713,000 
          capital expenditures
        -911,000 -217,000 -589,000 -574,000 -14,508,000 -3,921,000 -925,000 -559,000 -444,000 -1,101,000 -564,000 -1,394,000 -1,209,000 -2,284,000 -110,000 -425,000 -337,000 -634,000 -940,000 -550,000 -387,000 -1,918,000 -6,104,000 -2,168,000 -1,603,000 -1,447,000 -200,000 -1,278,000 -1,584,000 -694,000 -340,000 -1,143,000 -399,000 -1,129,000 -117,000 -557,000 -268,000 -2,405,000 -1,211,000 -672,000 -1,594,000 -1,865,000 -506,000 -491,000 -838,000 -3,899,000 -1,730,000 -246,000 -1,220,000 -1,859,000 -1,552,000 -751,000 -429,000 -1,642,000 -949,000 -499,000 -531,000 -1,312,000 -697,000 -895,000 -931,000 -782,000 -1,088,000 -1,612,000 -1,872,000 -1,462,000 -1,294,000 -3,063,000 -729,000 -1,789,000 -1,211,000 
          free cash flows
        15,170,000 63,174,000 395,341,000 104,544,000 -34,497,000 188,113,000 76,706,000 -49,469,000 50,329,000 -24,686,000 310,046,000 -46,834,000 -29,061,000 354,224,000 -18,839,000 -34,193,000 -18,309,000 70,595,000 95,324,000 -27,809,000 -10,229,000 17,337,000 95,238,000 67,587,000 -28,488,000 16,010,000 125,299,000 -24,020,000 -32,365,000 -30,519,000 170,045,000 5,684,000 -994,000 216,330,000 104,632,000 18,890,000 -26,123,000 230,877,000 -11,382,000 190,762,000 14,639,000 84,912,000 150,000 24,804,000 933,000 52,085,000 154,018,000 32,894,000 -4,079,000 -2,404,000 -2,582,000 142,761,000 75,809,000 -124,456,000 340,803,000 -16,124,000 -26,236,000 -3,090,000 -2,000,000 -26,945,000 -6,138,000 -30,003,000 80,460,000 -13,420,000 101,418,000 49,569,000 -21,278,000 114,440,000 85,615,000 17,322,000 11,502,000 
          cash flows from investing activities:
                                                                               
          purchases of short-term investments
        -126,614,000 -162,729,000 -81,341,000 -149,152,000 -86,864,000 -97,030,000 -148,348,000 -130,000,000 -167,086,000 -164,758,000 -140,056,000 -222,163,000 -309,393,000 -258,535,000 -272,260,000 210,000 -2,139,000 -29,649,000 -170,725,000 -154,306,000 -173,120,000 -341,852,000 -66,730,000 -10,599,000 -110,378,000 -166,000 -196,000 -91,367,000 -707,000 7,000 -41,403,000 -7,025,000 -94,134,000 -116,749,000 -301,001,000 -82,325,000 -429,941,000 -915,000 -418,701,000 -121,013,000 -19,446,000 -244,132,000 -139,487,000 -210,587,000 -48,881,000 -43,097,000 -131,665,000 -50,963,000 -212,432,000 -124,822,000 -79,474,000 -111,089,000 -102,343,000 -64,091,000 -56,466,000 -79,479,000 -131,792,000 -242,301,000 -109,097,000 -176,571,000 -185,714,000 -187,722,000 -309,548,000 -126,838,000 -106,199,000 -52,771,000 -12,287,000 -102,049,000 -50,203,000 -47,904,000 -7,321,000 
          proceeds from maturities and sales of short-term investments
        156,389,000 83,804,000                                                                      
          purchases of property and equipment
        -911,000 -217,000 -589,000 -574,000 -14,508,000 -3,921,000 -925,000 -559,000 -444,000 -1,101,000 -564,000 -1,394,000 -1,209,000 -2,284,000 -110,000 -425,000 -337,000 -634,000 -940,000 -550,000 -387,000 -1,918,000 -6,104,000 -2,168,000 -1,603,000 -1,447,000 -200,000 -1,278,000 -1,584,000 -694,000 -340,000 -1,143,000 -399,000 -1,129,000 -117,000 -557,000 -268,000 -2,405,000 -1,211,000 -672,000 -1,594,000 -1,865,000 -506,000 -491,000 -838,000 -3,899,000 -1,730,000 -246,000 -1,220,000 -1,859,000 -1,552,000 -751,000 -429,000 -1,642,000 -949,000 -499,000 -531,000 -1,312,000 -697,000 -895,000 -931,000 -782,000 -1,088,000 -1,612,000 -1,872,000 -1,462,000 -1,294,000 -3,063,000 -729,000 -1,789,000 -1,211,000 
          capitalized patent costs
        -14,167,000 -15,036,000 -14,466,000 -12,976,000 -12,149,000 -19,382,000 -11,911,000 -12,622,000 -8,973,000 -12,366,000 -9,078,000 -11,642,000 -7,272,000 -9,330,000 -8,944,000 -11,451,000 -9,872,000 -5,271,000 -7,917,000 -10,626,000 -9,602,000 -6,889,000 -9,877,000 -7,593,000 -6,256,000 -7,358,000 -8,283,000 -9,359,000 -8,481,000 -8,224,000 -9,338,000 -6,472,000 -8,035,000 -8,627,000 -9,755,000 -8,764,000 -7,787,000 -8,384,000 -7,906,000 -8,306,000 -8,062,000 -5,760,000 -7,815,000 -7,764,000 -8,427,000 -8,607,000 -6,213,000 -9,229,000 -7,883,000 -12,520,000 -6,802,000 -9,812,000 -4,923,000 -8,534,000 -4,918,000 -6,238,000 -8,627,000 -7,744,000 -6,302,000 -6,455,000 -6,671,000 -7,851,000 -13,868,000 -9,339,000 -13,806,000 -6,318,000 -7,471,000 -15,608,000 -7,415,000 -7,999,000 -4,413,000 
          long-term investments
        1,709,000     14,202,000 382,000 -382,000 1,576,000 -2,444,000        2,454,000 -1,091,000         -436,000 -2,000,000 -4,250,000 -1,384,000 -2,500,000 -200,000 -501,000               -445,000              -651,000  
          net cash from investing activities
        16,406,000 -103,343,000 -14,717,000 -81,728,000 59,508,000 -29,899,000 41,852,000 80,723,000 16,775,000 -10,872,000 -6,753,000 -53,082,000 -14,463,000 -191,507,000 -265,914,000 35,113,000 107,602,000 192,188,000 -17,032,000 51,509,000 -47,026,000 -288,070,000 -15,742,000 88,302,000 -94,536,000 24,062,000 89,681,000 -18,524,000 173,037,000 72,747,000 -125,245,000 110,964,000 11,518,000 -54,700,000 8,315,000 33,069,000 -206,981,000 -13,696,000 -391,581,000 -89,062,000 275,334,000 -46,918,000 -4,355,000 -184,812,000 22,110,000 75,905,000 -83,708,000 -30,399,000 -102,107,000 -25,655,000 100,220,000 -55,138,000 -57,742,000 20,664,000 89,413,000 -27,497,000 -19,614,000  32,859,000 -1,364,000 -8,731,000  -84,353,000         
          cash flows from financing activities:
                                                                               
          payments on long-term debt
        -88,017,000 -199,000 -14,000 -1,284,000 -2,373,000 -137,479,000 -1,590,000           -94,909,000           -230,000,000                               
          net proceeds from exercise of stock options
         -1,000 15,000 7,316,000 21,000    553,000 12,000 687,000 1,226,000 2,065,000 1,516,000 3,632,000 737,000 100,000 1,014,000 778,000 2,000 361,000 2,432,000   300,000 82,000 183,000 74,000   17,000 3,000   33,000 16,000 10,000 343,000 298,000 93,000 432,000 209,000 1,398,000 123,000 350,000 240,000 447,000 1,098,000 340,000 2,612,000 10,895,000 8,465,000  3,241,000 873,000      
          taxes withheld upon restricted stock unit vestings
        -55,003,000 -519,000 -10,646,000 -939,000 -32,177,000 -4,454,000 -4,601,000 -1,580,000 -8,635,000 -1,523,000 -2,886,000 -1,390,000 -6,708,000 -136,000 -388,000 -707,000 -5,026,000 -3,203,000 -74,000 -711,000 -2,962,000 -216,000 -55,000 -755,000 -725,000  -179,000 -40,000 -4,097,000  -91,000 -111,000 -8,277,000  -46,000 -235,000 -21,955,000                                   
          repurchase of common stock
        -8,165,000 -35,650,000 -35,252,000 -26,168,000 -5,249,000 -3,056,000 -34,802,000 -28,868,000 -36,976,000 -56,858,000 -42,489,000 -203,381,000   -7,000,000 -11,859,000 -5,391,000 -5,750,000 -349,000 -25,000,000 -62,283,000 -108,986,000 -66,997,000 -34,336,000 -3,148,000 -6,024,000     -5,690,000 -18,596,000 -40,399,000 -7,358,000 -18,480,000 -19,841,000 -50,731,000 -64,603,000 -79,568,000       -74,949,000 -52,420,000 -25,325,000       -14,001,000  -15,098,000 -36,580,000 -16,105,000 -17,762,000 
          dividends paid
        -17,980,000 -18,041,000 -15,507,000 -15,577,000 -11,557,000 -11,374,000 -10,052,000 -10,147,000 -10,226,000 -10,348,000 -9,273,000 -9,449,000 -10,384,000 -10,382,000 -10,380,000 -10,803,000 -10,741,000 -10,739,000 -10,794,000 -10,739,000 -10,786,000 -10,782,000 -10,781,000 -10,762,000 -10,747,000 -10,897,000 -10,894,000 -11,160,000 -11,629,000 -11,996,000 -12,153,000 -12,164,000 -12,155,000 -12,148,000 -10,413,000 -10,402,000 -10,292,000 -10,286,000 -6,858,000 -6,923,000 -7,068,000 -7,093,000 -7,179,000 -7,232,000 -7,433,000 -7,609,000 -8,032,000 -4,045,000 -4,043,000 -4,121,000 -4,118,000   -69,689,000 -4,348,000 -4,470,000 -4,570,000 -4,548,000 -4,540,000 -4,536,000 -4,526,000           
          net cash from financing activities
        -169,165,000 -54,410,000 -61,419,000 -42,669,000 -42,951,000 -21,368,000 -17,698,000 -184,008,000 -49,319,000 -48,294,000 -69,017,000 -53,316,000 -218,136,000 -10,825,000 -11,564,000 54,034,000 -13,041,000 -20,180,000 -21,211,000 -13,209,000 -19,870,000 -5,565,000 -10,836,000 -10,503,000 -105,952,000 -30,616,000 -12,148,000 67,817,000 -114,377,000 -78,960,000 -44,148,000 -11,493,000 -26,456,000 -13,302,000 -10,459,000 -10,637,000 -32,165,000 -2,674,000 -12,474,000 -25,291,000 -277,467,000 -7,295,000 -25,694,000 -20,647,000 234,752,000 -72,121,000 -86,287,000 -11,148,000 -1,295,000 -31,629,000 -2,670,000 1,961,000 349,000 -68,899,000 -79,258,000 -56,521,000 -28,264,000 -1,748,000 -1,492,000 206,886,000 -1,396,000           
          net decrease in cash, cash equivalents, and restricted cash
        -136,678,000                                                                       
          cash, cash equivalents, and restricted cash, beginning of period
        754,268,000                                                                       
          cash, cash equivalents, and restricted cash, end of period
        617,590,000                                                                       
          decrease in assets:
                                                                               
          customer deposit
             -13,000,000                                                                 
          acquisitions
                                                                               
          payment for warrant unwind and settlement
                                                                               
          payments of debt issuance costs
                 -100,000 -307,000 -796,000           -1,075,000               -9,403,000                         
          taxes paid on the repurchase of common stock
                                                                               
          non-controlling interest contribution
                 1,750,000 1,500,000                                                       
          net increase in cash, cash equivalents and restricted cash
         -94,362,000   -3,432,000    18,229,000   -151,838,000 -260,451,000   55,379,000 76,589,000     -274,380,000 74,764,000 147,554,000 -227,373,000 10,903,000 203,032,000 26,551,000 27,879,000 -36,038,000                                          
          cash, cash equivalents and restricted cash, beginning of period
         551,547,000 442,961,000 703,161,000 713,224,000 477,663,000 757,098,000 488,733,000                                          
          cash, cash equivalents and restricted cash, end of period
         -94,362,000 319,794,000 -19,279,000 548,115,000 140,767,000 101,785,000 -152,195,000 461,190,000 -82,751,000 234,840,000 -151,838,000 442,710,000 154,176,000 -296,207,000 55,379,000 789,813,000 243,237,000 58,021,000 11,041,000 400,925,000 -274,380,000 74,764,000 147,554,000 529,725,000 10,903,000 203,032,000 26,551,000 516,612,000 -36,038,000                                          
          non-cash interest income
          -936,000 -893,000 -1,533,000  -1,861,000 -2,768,000 -3,661,000                                                               
          non-cash change in investments
           108,000 476,000 -1,005,000 479,000 -1,397,000 1,247,000                                                               
          sales of short-term investments
           80,974,000 173,029,000 80,482,000 202,654,000 224,286,000 191,702,000 169,797,000 142,378,000 182,117,000 303,411,000 78,642,000 15,400,000 46,779,000 119,950,000 227,638,000 162,550,000 216,991,000 137,174,000 61,654,000 62,709,000 108,662,000 23,701,000 33,383,000 88,360,000 83,480,000 183,809,000 81,658,000 69,257,000 129,854,000 118,336,000 73,189,000 321,688,000 124,915,000 231,516,000 46,108,000 36,537,000 42,929,000 308,936,000 210,868,000 150,047,000 34,030,000 100,256,000 131,508,000 56,925,000 55,314,000 119,428,000 125,101,000 188,048,000 67,027,000 62,898,000 96,631,000 152,496,000 71,719,000 121,336,000 187,441,000 148,955,000 182,557,000 184,585,000 111,193,000 240,151,000 91,613,000 50,991,000 13,716,000 33,461,000 81,452,000 26,213,000 46,135,000 7,683,000 
          net decrease in cash, cash equivalents and restricted cash
              101,785,000            58,021,000 11,041,000 -76,738,000                                                   
          acquisition of patents
                                           -100,000 -300,000 -4,500,000 -20,000,000 -1,025,000   -12,000,000 -513,000 -12,500,000 -1,700,000 -750,000                 
          proceeds from issuance of convertible senior notes
                                               316,000,000                         
          purchase of convertible bond hedge
                                             -59,376,000                         
          proceeds from issuance of warrants
                                             42,881,000                         
          proceeds from bond hedge unwind
                                                                               
          (increase) in assets:
                                                                               
          non-cash change in fair value
                                                                               
          loss on extinguishment of debt
                                                                           
          impairment of assets
                 2,500,000                                                         
          payment for warrant unwind
                                                                           
          non-controlling interest distribution
                         -1,403,000 -1,109,000                                                   
          non-cash interest expense
                  -3,470,000 -2,896,000 -3,434,000 -2,097,000 684,000 1,560,000 1,498,000 1,627,000 1,379,000 2,042,000 1,819,000 4,891,000 4,553,000 4,012,000 4,637,000 5,123,000 5,023,000 4,481,000 4,082,000 2,825,000                                          
          non-cash change in fair-value
                  -6,112,000 -3,100,000 -158,000        -5,501,000  710,000                                           
          proceeds from hedge unwind
                                                                            
          loss on disposal of assets
                                    147,000                                          
          proceeds from sale of business
                                                                              
          decrease in assets
                                                                               
          increase increase in liabilities:
                                                                               
          gain on asset acquisition and sale of a business
                                                                               
          impairment of long-term investment
                                                        15,051,000 6,669,000     315,000 1,301,000           
          impairment of patents
                         2,228,000                                                     
          proceeds from issuance of senior convertible notes
                                                                               
          prepayment penalty on long-term debt
                                                                              
          proceeds from noncontrolling interests
                                                  -1,000 1,276,000 1,275,000  1,275,000 1,275,000 1,275,000  1,275,000                     
          increase in assets
                                                                               
          accrued taxes payable and other tax contingencies
                             239,000 19,000 -123,000 174,000 -142,000 -444,000 630,000 -1,501,000 -96,514,000 97,331,000 435,000 -5,970,000 -16,386,000 -7,485,000 -438,000 28,529,000 -5,360,000 3,986,000 -1,834,000 12,001,000 -13,110,000 184,000 2,866,000 11,561,000 -10,759,000 -32,366,000 41,965,000 -4,475,000 5,324,000 230,000 264,000 -2,722,000 -129,791,000 129,185,000 134,000 1,167,000 -495,000              
          acquisition of business, net of cash acquired
                                                                              
          gain on asset acquisition
                                                                               
          net proceeds from change in long-term investments
                                                                               
          proceeds from non-controlling interests
                                 5,333,000 10,333,000                                           
          gain on asset acquisition and sale of business
                                                                              
          prepayment penalty on long term debt
                                                                               
          shares withheld for taxes
                                                                               
          supplemental cash flow information:
                                                                               
          interest paid
                                    2,370,000 2,370,000 2,370,000 2,370,000 2,370,000 2,370,000 5,245,000 5,113,000 2,875,000 2,875,000                         
          income taxes paid, including foreign withholding taxes
                                    3,196,000 9,445,000 13,660,000 2,746,000 8,053,000 37,620,000 15,063,000 11,120,000 2,990,000 50,009,000 6,341,000 37,862,000 14,423,000 41,947,000 7,069,000 24,050,000 12,714,000 28,885,000 63,168,000                         
          non-cash investing and financing activities:
                                                                               
          dividend payable
                                    11,195,000 -369,000 -197,000 29,000 12,164,000 7,000 1,736,000 9,000 10,404,000 5,000 3,424,000 -62,000 6,923,000 -115,000 -60,000 11,000 7,232,000 -210,000 -367,000                         
          increases in noncontrolling interests
                                    2,500,000                                           
          accrued capitalized patent costs, acquisition of patents and property and equipment
                                    -1,056,000                                           
          tax benefit from share-based compensation
                                              37,000 -46,000  -37,000 624,000 1,539,000 -2,394,000 22,000 66,000 1,130,000 52,000 80,000 543,000 140,000 -608,000 -84,000 122,000 1,468,000 2,426,000 2,024,000 117,000 564,000 5,391,000 1,342,000 1,321,000 652,000 652,000 510,000 498,000 370,000 80,000 1,713,000 
          non-cash acquisition of patents
                                         19,700,000       3,300,000                            
          accrued capitalized patent costs, property and equipment, and acquisition of patents
                                      478,000 295,000 -2,286,000  91,000 489,000 -1,128,000  -331,000 164,000 -523,000                               
          amortization of deferred financing costs and accretion of debt discount
                                       3,441,000 3,380,000  3,295,000 3,257,000 3,201,000  3,119,000 3,093,000 5,866,000  5,708,000 5,659,000 3,641,000                           
          net (decrease) in cash and cash equivalents
                                       106,298,000 -15,533,000                                       
          cash and cash equivalents, beginning of period
                                       433,014,000 404,074,000 510,207,000 428,567,000 497,714,000 349,843,000 342,211,000 215,451,000 210,863,000 100,144,000 100,144,000 92,018,000 92,018,000 
          cash and cash equivalents, end of period
                                       106,298,000 417,481,000 149,457,000 102,605,000 41,879,000 139,073,000 216,912,000 -414,226,000 77,081,000 524,307,000 32,564,000 -29,393,000 -180,164,000 687,200,000 59,768,000 -14,247,000 -8,407,000 391,453,000 -57,829,000 96,520,000 90,335,000 368,688,000 -171,049,000 351,907,000 -99,643,000 268,628,000 -67,442,000 30,064,000 179,472,000 200,117,000 -98,169,000 217,431,000 -54,908,000 119,862,000 105,401,000 -25,231,000 132,077,000 130,376,000 -14,273,000 -1,663,000 
          deferred revenue recognized
                                        -53,121,000 -154,416,000 -84,594,000 -76,816,000 -78,921,000 -79,209,000 -172,681,000 -34,829,000 -34,594,000 -37,396,000 -39,936,000 -41,865,000 -44,157,000 -43,989,000 -44,814,000 -47,701,000 -26,635,000 -38,827,000 -82,664,000 -27,051,000 -25,472,000 -68,075,000 -48,028,000 -50,451,000 -56,865,000 -60,300,000 -56,279,000 -57,324,000 -61,610,000 -73,897,000 -133,643,000 -60,215,000 -111,026,000 -52,819,000 -35,793,000 -58,625,000 -30,284,000 -31,348,000 -30,063,000 
          increase in deferred revenue
                                        7,829,000 27,468,000 142,610,000 2,777,000 185,000,000 202,912,000 41,952,000 201,730,000 80,440,000 22,910,000 276,000 18,273,000 72,503,000 2,013,000 14,013,000 242,361,000 14,498,000 22,654,000 20,923,000 154,784,000 11,569,000 145,384,000 4,650,000 6,852,000 17,718,000 9,097,000 12,009,000 18,131,000 17,338,000 9,735,000 52,497,000 6,617,000 385,014,000 300,000,000 -944,000 82,464,000 30,465,000 33,833,000 41,087,000 
          amortization of deferred financing fees and accretion of debt discount
                                                     2,660,000 2,580,000 2,580,000 2,505,000 2,504,000 2,432,000 2,431,000 2,359,000 2,359,000                  
          gain on disposal of assets
                                             -6,842,000                                 
          proceeds from other financing activities
                                                                             
          net increase in cash and cash equivalents
                                           41,879,000 -265,001,000 216,912,000        59,768,000 -14,247,000 -8,407,000 -106,261,000 -57,829,000 96,520,000 90,335,000 18,845,000 -171,049,000 351,907,000   -67,442,000 30,064,000 179,472,000 -15,334,000 -98,169,000 6,568,000 -54,908,000 19,718,000 5,257,000 -25,231,000 40,059,000 38,358,000 -14,273,000 -1,663,000 
          accrued capitalized patent costs and acquisition of patents
                                                   94,000 327,000 -1,159,000 671,000                         
          impairment of investments
                                                                               
          non-cash cost of patent sales
                                                                             
          purchases of long-term investments
                                                                              
          net increase cash and cash equivalents
                                               77,081,000 14,100,000  -29,393,000 -180,164,000 258,633,000                           
          purchase of long-term investments
                                                                               
          payments on long-term debt, including capital lease obligations
                                                             -103,000 -77,000 -73,000 -74,000 -95,000 -46,000 -72,000 -434,000 -74,000 -1,463,000 -338,000 -67,000 -1,179,000 -365,000 -94,000 -969,000 
          net loss
                                                        -2,555,000                       
          adjustments to reconcile net loss to net cash from operating activities:
                                                                               
          accrued capitalized patent costs
                                                                               
          accrued purchases of property, plant and equipment
                                                                               
          income taxes paid, including foreign witholding taxes
                                                                               
          accrued compensation and other incomes
                                                                               
          accretion of debt discount
                                                               1,964,000 1,899,000 1,898,000 1,835,000             
          amortization of financing costs
                                                               326,000 326,000 325,000 326,000             
          deferred charges
                                                               122,000 125,000 -121,000 250,000 131,000 42,000 8,282,000 -2,530,000 1,018,000 3,095,000 106,000 1,707,000 117,000 1,025,000 1,104,000 1,103,000 
          other current assets
                                                               -2,396,000 2,181,000 22,658,000 -1,274,000 679,000 -1,340,000 -3,880,000 1,169,000 3,587,000 1,028,000 895,000 -5,601,000 7,643,000 -3,172,000 -1,969,000 -1,219,000 
          accrued compensation
                                                               6,527,000 -9,634,000 -1,061,000 3,920,000 4,306,000 -14,537,000 4,433,000 2,784,000 1,470,000 -24,401,000 -25,877,000 12,532,000 -1,968,000 -5,496,000 2,729,000 2,316,000 
          other accrued expenses
                                                               5,011,000 -974,000 1,114,000 64,000 1,214,000 2,658,000 -1,197,000 -1,686,000 940,000 5,247,000 6,669,000 -4,664,000 723,000 -366,000 1,152,000 -431,000 
          net decrease in cash and cash equivalents
                                                                -73,583,000               
          recognition of foreign tax credits
                                                                               
          non-cash repositioning charge
                                                                               
          capitalized technology license costs
                                                                       -1,115,000 -126,000 -3,483,000 -1,220,000 -500,000 -4,156,000 -12,484,000 
          net cash (used in) investing activities
                                                                               
          issuance of common stock for profit sharing
                                                                               
          accrued taxes payable
                                                                   807,000 -858,000 -28,340,000 17,407,000 5,000 33,000,000 33,000,000 -506,000 -15,675,000 -11,858,000 3,000 -1,990,000 
          non-cash repositioning charges
                                                                       30,568,000 30,568,000      
          decrease (increase) in assets:
                                                                               
          net cash (used) provided by investing activities
                                                                               
          net cash provided (used) by financing activities
                                                                     16,214,000 9,373,000   1,187,000      
          non-cash investing and financing activities
                                                                               
          issuance of restricted common stock
                                                                               
          leased asset additions and related obligation
                                                                               
          net cash (used) by investing activities
                                                                               
          net proceeds from exercise of stock options and warrants
                                                                               
          and employee stock purchase plan
                                                                               
          net cash used by financing activities
                                                                       3,726,000 -11,571,000  -14,173,000 -36,305,000 -15,352,000 -17,671,000 3,370,000 
          accrued purchase of treasury stock
                                                                               
          net cash used by investing activities
                                                                        -72,001,000 -46,961,000  -41,139,000 -32,634,000  -17,746,000 
          net cash provided (used) by investing activities
                                                                               
          net proceeds from exercise of stock options and warrants and employee stock purchase plan
                                                                          482,000  748,000 105,000 2,626,000 
          investment write-down
                                                                           745,000 745,000   
          net proceeds from exercise of stock options and employee stock purchase plan
                                                                           956,000    
          tax benefit from stock options
                                                                               
          proceeds from sales of fixed assets
                                                                               
          non-cash investing and financing activities issuance of restricted common stock