7Baggers

FTI Consulting, Inc
(NYSE:FCN) 

FCN stock logo

FTI Consulting, Inc. provides business advisory services to manage change, mitigate risk, and resolve disputes worldwide. Its Corporate Finance & Restructuring segment provides business transformation, transactions, turnaround, restructuring, and bankruptcy services. The company's Forensic and Litig...

Full Time Employees: 6,264
Sector: Industrials
Industry: Consulting 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 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 
                                                                                                   
      revenues
    983,345,000 990,746,000 956,167,000 943,662,000 898,282,000 894,924,000 926,019,000 949,156,000 928,553,000 924,684,000 893,261,000 864,591,000 806,706,000 774,431,000 775,865,000 754,992,000 723,620,000 676,231,000 702,228,000 711,486,000 686,277,000 626,581,000 622,249,000 607,852,000 604,593,000 602,218,000 593,106,000 606,119,000 551,274,000 504,993,000 513,012,000 512,098,000 497,774,000 467,711,000 448,962,000 444,715,000 446,344,000 441,920,000 438,042,000 460,147,000 470,285,000 442,204,000 455,470,000 449,137,000 432,338,000 425,158,000 451,178,000 454,324,000 425,552,000 415,998,000 414,643,000 414,613,000 407,178,000 399,345,000 386,055,000 396,243,000 395,228,000 390,713,000 413,802,000 400,437,000 361,816,000 356,248,000 346,140,000 349,033,000 350,040,000 342,938,000 348,637,000 360,525,000 347,846,000 322,876,000 325,497,000 337,670,000 307,102,000 280,519,000 253,334,000 239,692,000 227,725,000 216,841,000 162,068,000 159,760,000 169,264,000 165,825,000 133,189,000 123,917,000 116,614,000 104,887,000 104,433,000 107,445,000 110,240,000 96,225,000 83,593,000 94,526,000 101,351,000 90,557,000 55,859,000 
      operating expenses
                                                                                                   
      direct cost of revenues
    676,518,000 683,080,000 638,233,000 641,141,000 608,928,000 624,864,000 628,079,000 637,749,000 626,034,000 613,809,000 598,804,000 588,094,000 553,509,000 526,139,000 526,654,000 520,080,000 493,104,000 484,126,000 472,235,000 490,722,000 468,424,000 440,274,000 417,179,000 413,011,000 402,247,000 418,672,000 380,892,000 386,266,000 349,066,000 340,162,000 336,477,000 330,318,000 321,117,000 307,566,000 294,851,000 304,071,000 309,072,000 308,239,000 293,702,000 303,194,000 305,636,000 299,336,000 301,609,000 291,469,000 279,030,000 281,689,000 293,244,000 295,549,000 274,275,000 268,901,000 255,152,000 259,528,000 258,480,000 245,080,000 241,614,000 248,220,000 245,618,000 233,005,000 249,975,000 247,036,000 219,140,000 205,190,000 204,095,000 209,031,000 197,460,000 187,590,000 193,204,000 194,181,000 192,412,000 170,410,000 174,514,000 188,166,000 172,521,000 151,746,000 139,131,000 131,349,000 126,181,000 112,136,000 91,554,000 90,083,000 95,259,000 88,714,000 73,341,000 65,192,000 64,345,000 58,118,000 56,677,000 58,309,000 61,866,000 49,355,000 37,388,000 43,074,000 46,536,000 42,592,000 27,278,000 
      selling, general and administrative expenses
    222,298,000 213,601,000 199,484,000 202,204,000 184,335,000 208,051,000 205,995,000 206,235,000 201,870,000 194,634,000 186,088,000 186,371,000 184,213,000 164,973,000 159,186,000 167,940,000 148,971,000 138,768,000 138,600,000 133,930,000 126,546,000 112,422,000 122,102,000 126,928,000 126,959,000 133,032,000 127,951,000 129,906,000 113,185,000 118,163,000 117,448,000 117,897,000 112,128,000 111,176,000 103,909,000 107,342,000 107,295,000 116,478,000 106,220,000 108,245,000 103,609,000 116,351,000 105,058,000 109,045,000 102,214,000                                               18,787,000 21,167,000 18,851,000 13,246,000 
      special charges
        25,295,000                  7,103,000           10,811,000  30,074,000  3,634,000  1,750,000 5,061,000     1,628,000 5,347,000 9,364,000  27,568,000 10,419,000  427,000  2,775,000 26,782,000    16,772,000  21,775,000   30,245,000              22,972,000                 
      amortization of intangible assets
    612,000 629,000 780,000 1,053,000 1,017,000 1,034,000 1,053,000 1,080,000 1,016,000 1,220,000 1,340,000 1,417,000 2,182,000 2,323,000 2,315,000 2,737,000 2,268,000 2,308,000 2,860,000 2,854,000 2,801,000                                                                           
      operating expenses - sum
    899,428,000 897,310,000 838,497,000 844,398,000 819,575,000 842,179,000 835,127,000 845,064,000 828,920,000 809,663,000 786,232,000 775,882,000 739,904,000 701,775,000 688,155,000 690,757,000 644,343,000 625,202,000 613,695,000 627,506,000 597,771,000   542,253,000 531,537,000   518,024,000 464,112,000 335,420,500 455,900,000 450,267,000 435,515,000 433,186,000 401,894,000 444,686,000 419,255,000 431,239,000 402,968,000 415,985,000 418,046,000 418,439,000 409,726,000 401,983,000 384,490,000 403,252,000 404,707,000 415,392,000 385,435,000 404,548,000 450,242,000 354,354,000 361,849,000 454,676,000 339,467,000 369,411,000 354,281,000   364,125,000 313,323,000 227,864,750 296,177,000 297,085,000 318,197,000 215,184,500 284,351,000  287,215,000 197,518,250 271,686,000 270,396,000 247,991,000 224,546,000 204,431,000 196,007,000 189,276,000 172,026,000 156,788,000 131,498,000 141,439,000 128,636,000 107,880,000 96,090,000 93,551,000 90,974,000 83,813,000 84,404,000 89,345,000 73,428,000 57,328,000     
      operating income
    83,917,000 93,436,000 117,670,000 99,264,000 78,707,000 52,745,000 90,892,000 104,092,000 99,633,000 115,021,000 107,029,000 88,709,000 66,802,000 72,656,000 87,710,000 64,235,000 79,277,000 51,029,000 88,533,000 83,980,000 88,506,000 70,938,000 73,070,000 65,599,000 73,056,000 48,200,000 82,138,000 88,095,000 87,162,000 44,803,000 57,112,000 61,831,000 62,259,000 34,525,000 47,068,000 29,000 27,089,000 10,681,000 35,074,000 44,162,000 52,239,000 23,765,000 45,744,000 47,154,000 47,848,000 21,906,000 46,471,000 38,932,000 40,117,000 11,450,000 -35,599,000 60,259,000 45,329,000 -55,331,000 46,588,000 26,832,000 40,947,000 68,204,000 59,422,000 36,312,000 48,493,000 34,687,000 49,963,000 51,948,000 31,843,000 67,270,000 64,286,000 71,353,000 60,631,000 58,462,000 53,811,000 67,274,000 59,111,000 55,973,000 48,903,000 43,685,000 38,449,000 44,815,000 5,280,000 28,262,000 27,825,000 37,189,000 25,309,000 27,827,000 23,063,000 13,913,000 20,620,000 23,041,000 20,895,000 22,797,000 26,265,000 31,890,000 32,873,000   
      yoy
    6.62% 77.15% 29.46% -4.64% -21.00% -54.14% -15.08% 17.34% 49.15% 58.31% 22.03% 38.10% -15.74% 42.38% -0.93% -23.51% -10.43% -28.07% 21.16% 28.02% 21.15% 47.17% -11.04% -25.54% -16.18% 7.58% 43.82% 42.48% 40.00% 29.77% 21.34% 213110.34% 129.83% 223.24% 34.20% -99.93% -48.14% -55.06% -23.33% -6.35% 9.18% 8.49% -1.56% 21.12% 19.27% 91.32% -230.54% -35.39% -11.50% -120.69% -176.41% 124.58% 10.70% -181.13% -21.60% -26.11% -15.56% 96.63% 18.93% -30.10% 52.29% -48.44% -22.28% -27.20% -47.48% 15.07% 19.47% 6.06% 2.57% 4.45% 10.04% 54.00% 53.74% 24.90% 826.19% 54.57% 38.18% 20.51% -79.14% 1.56% 20.65% 167.30% 22.74% 20.77% 10.38% -38.97% -21.49% -27.75% -36.44%       
      qoq
    -10.19% -20.59% 18.54% 26.12% 49.22% -41.97% -12.68% 4.48% -13.38% 7.47% 20.65% 32.79% -8.06% -17.16% 36.55% -18.97% 55.36% -42.36% 5.42% -5.11% 24.77% -2.92% 11.39% -10.21% 51.57% -41.32% -6.76% 1.07% 94.55% -21.55% -7.63% -0.69% 80.33% -26.65% 162203.45% -99.89% 153.62% -69.55% -20.58% -15.46% 119.81% -48.05% -2.99% -1.45% 118.42% -52.86% 19.36% -2.95% 250.37% -132.16% -159.08% 32.94% -181.92% -218.77% 73.63% -34.47% -39.96% 14.78% 63.64% -25.12% 39.80% -30.57% -3.82% 63.14% -52.66% 4.64% -9.90% 17.68% 3.71% 8.64% -20.01% 13.81% 5.61% 14.46% 11.94% 13.62% -14.21% 748.77% -81.32% 1.57% -25.18% 46.94% -9.05% 20.66% 65.77% -32.53% -10.51% 10.27% -8.34% -13.20% -17.64% -2.99%    
      other income
                                                                                                   
      interest income and other
    1,074,000 864,000 1,692,000 -2,068,000 2,842,000 7,779,000 -909,000 1,909,000 1,581,000 -8,088,000 5,147,000 -584,000 -1,342,000 -6,500,000 7,771,000 2,994,000 -347,000 896,000 5,175,000 -912,000 1,034,000 -4,291,000 -3,340,000 2,202,000 5,017,000 -3,680,000 2,973,000 2,609,000 159,000 2,903,000 1,400,000 2,474,000 -1,800,000 452,000 1,103,000 1,592,000 605,000 571,000 3,213,000 4,125,000 2,557,000 392,000 2,027,000 950,000 -137,000 1,205,000 1,014,000 1,448,000 1,003,000 46,000 1,152,000 -387,000 937,000 1,156,000 1,584,000 -363,000 3,282,000 895,000 486,000 2,923,000 2,000,000 -317,000 2,527,000 -141,000 2,354,000 2,073,000 3,330,000 702,000 2,053,000                           
      interest expense
    -6,445,000 -7,537,000 -7,634,000 -5,257,000 -968,000 -716,000 -1,197,000 -3,319,000 -1,719,000 -3,896,000 -4,474,000 -3,022,000 -2,939,000 -2,579,000 -2,378,000 -2,448,000 -2,642,000 -5,130,000 -5,073,000 -5,294,000 -4,797,000 -4,636,000 -5,151,000 -5,157,000 -4,861,000 -4,835,000 -4,832,000 -4,793,000 -4,746,000 -7,076,000 -7,246,000 -6,583,000 -6,244,000 -6,547,000 -6,760,000 -6,250,000 -5,801,000 -5,983,000 -6,304,000 -6,303,000 -6,229,000 -6,231,000 -11,696,000 -12,473,000 -12,368,000 -12,488,000 -12,634,000 -12,908,000 -12,655,000 -12,776,000 -12,814,000 -13,071,000 -12,715,000 -13,124,000 -13,208,000 -15,195,000 -15,204,000 -14,495,000 -14,319,000 -14,500,000 -15,310,000 -15,663,000 -11,904,000 -11,378,000 -11,318,000 -11,446,000 -11,434,000 -11,030,000 -11,013,000                 -1,646,000 -1,564,000 -1,585,000 -1,604,000 -1,206,000 -1,249,000 -976,000 -1,958,000 -2,142,000 -1,317,000 
      other income - sum
    -5,371,000 -6,673,000 -5,942,000 -7,325,000 1,874,000 7,063,000 -2,106,000 -1,410,000 -138,000 -11,984,000 673,000 -3,606,000 -4,281,000 -9,079,000 5,393,000 546,000 -2,989,000 -4,234,000 102,000 -6,206,000 -3,763,000   -2,955,000 156,000   -2,184,000 -4,587,000 -1,242,000 7,185,000 -4,109,000 -8,044,000 -6,095,000 -5,657,000 -4,658,000 -5,196,000 -5,412,000 -3,091,000 -2,178,000 -3,672,000 -5,839,000 -29,258,000 -11,523,000 -12,505,000 -11,283,000 -11,620,000 -11,460,000 -11,652,000 -12,730,000 -11,662,000 -13,458,000 -11,778,000 -16,818,000 -11,624,000 -15,558,000 -11,922,000   -11,577,000 -13,310,000 -8,755,250 -14,538,000 -11,519,000 -8,964,000 -6,785,500 -8,104,000  -8,710,000 -6,041,500 -8,209,000 -8,649,000 -7,308,000 -6,341,000 -10,590,000 -9,080,000 -11,209,000 -11,331,000 -5,004,000 -5,456,000 -5,226,000 -5,635,000 -5,993,000 -3,018,000 -1,555,000 -236,000 -1,375,000 -1,396,000 -1,407,000 -780,000 -845,000     
      income before income tax provision
    78,546,000 86,763,000 111,728,000 91,939,000 80,581,000 59,808,000 88,786,000 102,682,000 99,495,000 103,037,000 107,702,000 85,103,000 62,521,000 63,577,000 93,103,000 64,781,000 76,288,000 46,795,000 88,635,000 77,774,000 84,743,000 62,011,000 64,579,000 62,644,000 73,212,000 39,685,000 80,279,000 85,911,000 82,575,000 31,558,000 64,297,000 57,722,000 54,215,000 28,430,000 41,411,000 -4,629,000 21,893,000 5,269,000 31,983,000 41,984,000 48,567,000 17,926,000 16,486,000 35,631,000 35,343,000 10,623,000 34,851,000 27,472,000 28,465,000 -1,280,000 -47,261,000 46,801,000 33,551,000 -72,149,000 34,964,000 11,274,000 29,025,000 54,604,000 45,589,000 24,735,000 35,183,000 18,707,000 35,425,000 40,429,000 22,879,000 57,897,000 56,182,000 61,025,000 51,921,000 49,601,000 45,602,000 58,625,000 51,803,000 49,632,000 38,313,000 34,605,000 27,240,000 33,484,000 276,000 22,806,000 22,599,000 16,408,250 19,316,000 24,809,000 21,508,000           
      income tax provision
    20,915,000 32,232,000 28,910,000 20,241,000 18,757,000 10,098,000 22,320,000 18,735,000 19,530,000 21,404,000 24,385,000 22,708,000 14,974,000 16,079,000 15,836,000 13,353,000 16,967,000 8,587,000 19,155,000 14,992,000 20,247,000 6,422,000 14,407,000 14,470,000 16,465,000 10,624,000 19,857,000 21,313,000 19,930,000 7,834,000 19,964,000 14,113,000 15,270,000 -38,458,000 9,197,000 527,000 7,877,000 -1,832,000 10,292,000 15,437,000 18,386,000 7,577,000 6,177,000 13,922,000 11,657,000 9,702,000 12,329,000 10,225,000 10,348,000 5,859,000 3,360,000 23,315,000 9,871,000 13,728,000 12,251,000 3,527,000 10,594,000 14,723,000 16,150,000 7,823,000 13,385,000 8,031,000 13,462,000 15,363,000 8,694,000 21,324,000 18,626,000 23,800,000 20,249,000 18,408,000 18,059,000 23,215,000 20,514,000 18,838,000 15,330,000 11,523,000 11,978,000 16,128,000 562,000 10,139,000 10,312,000 13,253,000 8,113,000 10,420,000 9,033,000 6,060,000 8,294,000 8,852,000 7,971,000       
      net income
    57,631,000 54,531,000 82,818,000 71,698,000 61,824,000 49,710,000 66,466,000 83,947,000 79,965,000 81,633,000 83,317,000 62,395,000 47,547,000 47,498,000 77,267,000 51,428,000 59,321,000 38,208,000 69,480,000 62,782,000 64,496,000 55,589,000 50,172,000 48,174,000 56,747,000 29,061,000 60,422,000 64,598,000 62,645,000 23,724,000 44,333,000 43,609,000 38,945,000 66,888,000 32,214,000 -5,156,000 14,016,000 7,101,000 21,691,000 26,547,000 30,181,000 10,349,000 10,309,000 21,709,000 23,686,000 921,000 22,522,000 17,247,000 18,117,000 -7,139,000 -50,621,000 23,486,000 23,680,000 -85,877,000 22,713,000 7,747,000 18,431,000 39,881,000 29,439,000 16,912,000 21,798,000 10,676,000 21,963,000 25,066,000 14,185,000 36,573,000 37,556,000 37,225,000 31,672,000 31,193,000 27,543,000 35,410,000 31,289,000 30,794,000 22,983,000 23,082,000 15,262,000 17,356,000 -286,000 12,667,000 12,287,000 18,301,000 11,203,000 14,389,000 12,475,000 7,617,000 10,951,000 12,793,000 11,517,000 12,664,000 15,162,000 12,200,000 19,443,000 14,978,000 8,893,000 
      yoy
    -6.78% 9.70% 24.60% -14.59% -22.69% -39.11% -20.23% 34.54% 68.18% 71.87% 7.83% 21.32% -19.85% 24.31% 11.21% -18.08% -8.02% -31.27% 38.48% 30.32% 13.66% 91.28% -16.96% -25.42% -9.41% 22.50% 36.29% 48.13% 60.86% -64.53% 37.62% -945.79% 177.86% 841.95% 48.51% -119.42% -53.56% -31.38% 110.41% 22.29% 27.42% 1023.67% -54.23% 25.87% 30.74% -112.90% -144.49% -26.56% -23.49% -91.69% -322.87% 203.16% 28.48% -315.33% -22.85% -54.19% -15.45% 273.56% 34.04% -32.53% 53.67% -70.81% -41.52% -32.66% -55.21% 17.25% 36.35% 5.13% 1.22% 1.30% 19.84% 53.41% 105.01% 77.43% -8136.01% 82.22% 24.21% -5.16% -102.55% -11.97% -1.51% 140.27% 2.30% 12.48% 8.32% -39.85% -27.77% 4.86% -40.77% -15.45% 70.49%     
      qoq
    5.68% -34.16% 15.51% 15.97% 24.37% -25.21% -20.82% 4.98% -2.04% -2.02% 33.53% 31.23% 0.10% -38.53% 50.24% -13.31% 55.26% -45.01% 10.67% -2.66% 16.02% 10.80% 4.15% -15.11% 95.27% -51.90% -6.46% 3.12% 164.06% -46.49% 1.66% 11.98% -41.78% 107.64% -724.79% -136.79% 97.38% -67.26% -18.29% -12.04% 191.63% 0.39% -52.51% -8.35% 2471.77% -95.91% 30.59% -4.80% -353.78% -85.90% -315.54% -0.82% -127.57% -478.10% 193.18% -57.97% -53.79% 35.47% 74.07% -22.41% 104.18% -51.39% -12.38% 76.71% -61.21% -2.62% 0.89% 17.53% 1.54% 13.25% -22.22% 13.17% 1.61% 33.99% -0.43% 51.24% -12.06% -6168.53% -102.26% 3.09% -32.86% 63.36% -22.14% 15.34% 63.78% -30.44% -14.40% 11.08% -9.06% -16.48% 24.28% -37.25% 29.81% 68.42%  
      earnings per common share — basic
    1,920 1,830 2,630 2,160 1,760 1,410 1,880 2,380 2,290 2,350 2,440 1,870 1,430 1,420 2,290 1,520 1,760 1,140 2,070 1,880 1,930 1,620 1,410 1,330 1,560 800 1,650 1,750 1,690 630 1,190 1,180 1,060 1,740 860 -130 350 170 530 650 750                             630 560   367.5 550 560 370 430 -10 320 310               
      earnings per common share — diluted
    1,900 1,810 2,600 2,130 1,740 1,380 1,850 2,340 2,230 2,280 2,340 1,750 1,340 1,330 2,150 1,430 1,660 1,070 1,960 1,770 1,840 1,560 1,350 1,270 1,490 770 1,590 1,690 1,640 610 1,140 1,140 1,040 1,720 850 -130 340 170 520 640 730                             580 510   347.5 500 530 360 430 -10 320 310               
      other comprehensive income, net of tax
                                                     388,000 17,115,000 -11,714,000 -15,509,000 403,000 12,731,000 -10,960,000 12,849,000                                       
      foreign currency translation adjustments, net of tax expense of 0
    -10,053,000 10,857,750 -4,916,000 33,773,000 14,574,000 3,900,250 28,752,000 -1,718,000 -11,433,000 -495,500 -18,228,000 6,396,000 9,850,000 -23,836,250 -48,475,000 -40,679,000 -6,191,000 -4,510,500 -18,607,000 5,807,000 -5,242,000 -51,000 21,330,000 9,568,000 -31,102,000   -4,815,000 5,223,000   -23,683,000 10,446,000 1,886,000 11,234,000 10,174,000 7,370,000 -18,239,000 -4,478,000 -18,809,000 -358,000 -4,315,000 -17,229,000 13,298,000 -20,482,000                                                   
      total other comprehensive income, net of tax
    -10,053,000 3,537,000 -4,916,000 33,773,000 14,574,000 -41,713,000 28,752,000 -1,718,000 -11,433,000   6,396,000 9,850,000   -40,679,000  -4,363,000 -18,607,000 5,807,000  34,616,000 21,330,000 9,568,000 -31,102,000   -4,815,000 5,223,000 -4,354,250 -4,180,000 -23,683,000 10,446,000 7,194,500 11,234,000 10,174,000 7,370,000   -18,809,000    13,298,000 -20,482,000 -2,530,000 -22,542,000 7,694,000 4,728,000                                               
      comprehensive income
    47,578,000 58,068,000 77,902,000 105,471,000 76,398,000 7,997,000 95,218,000 82,229,000 68,532,000 109,877,000 65,089,000 68,791,000 57,397,000 94,961,000 28,792,000 10,749,000 53,130,000 33,845,000 50,873,000 68,589,000 59,254,000 90,205,000 71,502,000 57,742,000 25,645,000 52,256,000 43,789,000 59,783,000 67,868,000 13,539,000 40,153,000 19,926,000 49,391,000 68,774,000 43,448,000 5,018,000 21,386,000 -11,138,000 17,213,000 7,738,000 29,823,000 6,034,000 -6,920,000 35,007,000 3,204,000 -18,138,000 -20,000 24,941,000 22,845,000 -6,751,000 -33,506,000 11,772,000 8,171,000 -85,474,000 35,444,000 -3,213,000 31,280,000                                       
      other comprehensive loss, net of tax
                                                                                                   
      total other comprehensive loss, net of tax
             -495,500 -18,228,000   -23,836,250 -48,475,000  -6,191,000    -5,242,000     -4,056,250 -16,633,000           -5,911,250 -4,478,000  -358,000 -6,103,000 -17,229,000                                                     
      amortization of other intangible assets
                         1,860,000 2,795,000 2,314,000 2,331,000 2,314,000 2,125,000 1,852,000 1,861,000 1,865,000 1,975,000 2,052,000 2,270,000 2,766,000 2,882,000 2,422,000 2,493,000 2,265,000 2,845,000 2,590,000 2,606,000 2,807,000 2,900,000 3,007,000 3,012,000 4,055,000 3,398,000 3,452,000 4,616,000 5,661,000 5,776,000 5,953,000 5,564,000 5,634,000 5,766,000 5,490,000 5,517,000 5,576,000 5,843,000 5,498,000 5,454,000 5,681,000 6,286,000 5,852,000 6,091,000 6,331,000 6,171,000 6,149,000 6,050,000 5,805,000 5,664,000 4,457,000 2,898,000 1,944,500 2,293,000 2,748,000 2,737,000 2,865,000 2,551,000 2,805,000 2,954,000 2,225,000 1,952,000 1,608,000 749,000 2,616,000 1,244,000 1,255,000 1,721,000 581,250 775,000 775,000 775,000   
      gain on sale of business
                                  13,031,000                                                                 
      foreign currency translation adjustments, net of tax expense of 0, 373, 0 and 373
                             -4,056,250 -16,633,000                                                                     
      foreign currency translation adjustments, net of tax expense of 373, —, 373 and —
                                 -4,354,250 -4,180,000                                                                 
      acquisition-related contingent consideration
                                     867,000 252,000 777,000 395,000 623,000 201,000 206,000 1,134,000 -55,000 159,000 -1,538,000 234,000 -85,000 257,000 -5,000 -1,843,000 -4,778,000 630,000 -7,452,000 731,000 -483,000 403,000 -3,541,000 557,000                                       
      loss on early extinguishment of debt
                                              -19,589,000                    -5,161,000                                 
      earnings per common share—basic
                                             342.5 250 530 590 365 570 430 460 -22.5 -1,290 600 600 302.5 560 190 460 990 730 420 500 335 480 550 310 527.5 740 740 630   720 650         227.5 280 340 290           
      earnings per common share—diluted
                                             335 250 520 570 357.5 550 420 450 -22.5 -1,290 580 580 292.5 550 180 430 920 700 400 480 320 470 520 290 497.5 700 690 600   660 590         225 270 330 290           
      other comprehensive loss, net of tax:
                                                                                                   
      other comprehensive income, net of tax:
                                                                                                   
      selling, general and administrative expense
                                                 79,470,000 102,461,000 107,032,000 108,387,000 107,196,000 94,513,000 96,325,000 96,647,000 94,058,000 88,909,000 92,460,000 102,589,000 90,393,000 98,562,000 94,819,000 88,729,000 88,915,000 85,796,000 82,202,000 84,401,000 81,747,000 84,976,000 88,842,000 88,753,000 88,199,000 91,508,000 77,773,000 72,572,000 69,963,000 63,007,000 61,910,000 60,358,000 57,025,000 39,711,000 38,610,000 43,226,000 37,697,000 32,587,000 29,290,000 28,457,000 25,570,000 25,892,000 24,840,000 25,758,000 19,658,000 19,165,000     
      goodwill impairment charge
                                                      83,752,000                                             
      foreign currency translation adjustments, net of tax 0
                                                 -2,530,000 -22,542,000 7,694,000 4,728,000 -2,527,000 17,115,000 -11,714,000 -15,509,000                                           
      foreign currency translation adjustments, net of tax expense of 0 for the three and nine months ended september 30, 2012, and 500 and (1,568) for the three and nine months ended september 30, 2011, respectively
                                                         3,655,000 12,731,000                                         
      foreign currency translation adjustments, net of tax expense of 0 for the three and six months ended june 30, 2012, and 100 and (2,068) for the three and six months ended june 30, 2011, respectively
                                                           -10,960,000                                        
      foreign currency translation adjustments, including tax expense of 0 and (2,168) in 2012 and 2011, respectively
                                                            12,849,000                                       
      litigation settlement gains
                                                                        250,000 -177,750 -275,000   -218,000 36,000   -606,000 688,000   -638,000 21,000             
      interest income
                                                                         1,544,000 1,229,000 1,866,000 3,081,000 4,182,000 1,671,000 1,824,000 496,000 688,000 411,000 555,000 921,000 963,000 548,000 197,000 167,000 213,000 189,000 189,000 197,000 426,000 404,000 235,000 128,000 7,000 66,000 
      interest expense and other
                                                                         -7,407,750 -9,163,000 -10,080,000 -10,388,000 -10,393,000 -12,297,000 -10,737,000 -10,964,000 -11,413,000 -6,103,000 -6,006,000 -5,883,000 -5,960,000 -4,875,000 -2,507,000 -1,722,000           
      litigation settlement losses
                                                                           -435,000 -1,000   -167,000 -741,000   -5,000 -264,000   -708,000            
      loss on early extinguishment of terms of loans
                                                                                                   
      loss on early extinguishment of term loans
                                                                                     -421,750 -1,687,000             
      income from continuing operations before income tax provision
                                                                                         13,677,000 19,245,000 21,645,000 19,488,000       
      income from continuing operations
                                                                                         7,617,000 10,951,000 12,793,000 11,517,000 12,664,000 15,125,000 18,534,000 18,468,000 4,848,250 8,255,000 
      discontinued operations
                                                                                                   
      income from operations of discontinued operations, net of income tax benefit of 190 and
                                                                                                   
      income from sale of discontinued operations, net of income tax benefit of 658 and
                                                                                                   
      income from discontinued operations
                                                                                              37,000 -6,334,000 975,000   
      income from operations of discontinued operations, net of income tax provision of 485 and 1,346
                                                                                                   
      loss from sale of discontinued operations, net of income tax provision of 3,513 and 3,339
                                                                                                   
      loss from discontinued operations
                                                                                                   
      income from operations of discontinued operations, net of income tax provision of 861
                                                                                                   
      loss from sale of discontinued operations, net of income tax benefit of 174
                                                                                                   
      income from continuing operations before income taxes
                                                                                             21,903,000 25,420,000 31,149,000 31,043,000   
      income taxes
                                                                                             8,871,250 10,295,000 12,615,000 12,575,000 10,683,000 5,577,000 
      income from operations of discontinued operations, net of income taxes of 457 in 2002 and 190 in 2003
                                                                                              -267,000     
      gain from sale of discontinued operations, net of income tax benefit of 658 in 2003
                                                                                              304,000     
      other income:
                                                                                                   
      other income: - sum
                                                                                               -741,000 -1,830,000 -2,135,000 -1,251,000 
      income from operations of discontinued operations, net of income taxes of 486
                                                                                               686,000    
      loss from sale of discontinued operations, net of income taxes of 13
                                                                                               -7,020,000    
      income from continuing operations per common share, basic
                                                                                               450 720 235 380 
      earnings per common share, basic
                                                                                               300 750 660 410 
      income from continuing operations per common share, diluted
                                                                                               440 690 220 360 
      earnings per common share, diluted
                                                                                               290 720 620 390 
      income from operations of discontinued operations, net of income taxes
                                                                                                1,230,000   
      loss from sale of discontinued operations, net of income taxes
                                                                                                -255,000   
      amortization of goodwill and other intangible assets
                                                                                                 781,000 252,000 
      operating income from continuing operations
                                                                                                 8,749,000 15,083,000 
      income from continuing operations, before income taxes
                                                                                                 8,103,500 13,832,000 
      income from operations of discontinued operations, net of income taxes of 852 in 2001 and 475 in 2002
                                                                                                  638,000 
      income from discontinued operations per common share, basic
                                                                                                 35 30 
      income from discontinued operations per common share, diluted
                                                                                                 32.5 30 
    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 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2001-08-30 
                                                                                                      
        assets
                                                                                                      
        current assets
                                                                                                      
        cash and cash equivalents
      198,276,000 265,091,000 145,967,000 152,831,000 151,121,000 660,493,000 386,344,000 226,428,000 243,960,000 303,222,000 201,148,000 203,539,000 238,539,000 491,688,000 327,047,000 255,730,000 271,143,000 494,485,000 342,527,000 256,875,000 233,421,000 294,953,000 304,658,000 304,206,000 223,063,000 369,373,000 258,470,000 189,106,000 179,241,000 312,069,000 505,867,000 116,556,000 152,044,000 189,961,000 157,961,000 138,511,000 120,959,000 216,158,000 225,184,000 182,665,000 114,451,000 149,760,000 104,974,000 239,988,000 225,295,000 283,680,000 178,778,000 94,412,000 77,005,000 205,833,000 147,926,000 92,554,000 100,703,000 156,785,000 126,928,000 165,981,000 182,438,000 264,423,000 128,230,000 98,745,000 112,367,000 384,570,000 331,182,000 123,254,000 80,878,000 118,872,000 277,969,000 213,092,000 157,695,000 191,842,000 146,177,000 182,574,000 227,068,000 360,463,000 62,244,000 30,255,000 38,183,000 91,923,000 22,491,000 37,582,000 47,640,000 153,383,000 115,257,000 23,103,000 3,772,000 25,704,000 8,987,000 3,108,000 2,893,000 5,765,000 133,418,000 112,493,000 75,497,000 9,906,000 3,618,000  
        accounts receivable
      1,148,084,000 1,037,678,000 1,140,665,000 1,126,919,000 1,096,020,000 1,020,174,000 1,184,475,000 1,190,521,000 1,157,465,000 1,102,142,000 1,207,016,000 1,138,061,000 988,144,000 896,153,000 947,993,000 905,548,000 823,932,000 754,120,000 809,878,000 846,121,000 798,516,000 711,357,000 762,760,000 714,918,000 736,898,000 693,372,000 739,463,000 743,402,000 656,127,000 554,608,000 623,397,000 607,455,000 583,588,000 522,878,000 547,132,000 553,215,000 526,180,000 474,897,000 547,588,000 547,298,000 553,230,000 499,784,000 554,400,000 549,300,000 513,285,000 485,101,000 565,657,000 579,737,000 545,072,000 476,445,000 494,910,000 480,032,000 470,596,000 429,240,000 485,057,000 472,659,000 448,975,000 429,102,000 469,036,000 446,175,000 396,311,000 326,077,000 346,316,000 315,646,000 315,228,000 287,542,000 310,183,000 330,353,000 323,671,000 290,040,000 336,914,000                90,460,000 75,496,000 68,053,000 57,584,000 36,919,000     8,341,000 
        current portion of notes receivable
      91,370,000 87,861,000 88,655,000 86,605,000 76,348,000 44,894,000 44,836,000 45,145,000 45,211,000 30,997,000 32,095,000 30,629,000 27,989,000 27,292,000 27,198,000 29,773,000 29,301,000 30,256,000 32,823,000 32,093,000 35,540,000 35,253,000 34,089,000 32,279,000 31,942,000 35,106,000 32,368,000 29,606,000 29,206,000 29,228,000 31,318,000 28,619,000 29,371,000 25,691,000 23,924,000 27,126,000 29,314,000 31,864,000 32,490,000 34,418,000 31,474,000 36,115,000 35,097,000 36,281,000 33,393,000 27,208,000 28,757,000 29,911,000 33,592,000 33,093,000 32,112,000 34,128,000 32,452,000 33,194,000 32,735,000 33,454,000 30,734,000 26,687,000 26,558,000 25,771,000 29,162,000 26,130,000 27,267,000                                  
        prepaid expenses and other current assets
      119,159,000 126,997,000 123,289,000 136,661,000 105,418,000 93,953,000 100,318,000 107,117,000 98,062,000 119,092,000 126,967,000 108,054,000 97,733,000 95,469,000 91,187,000 100,668,000 97,015,000 91,166,000 83,266,000 78,373,000 83,672,000 88,144,000 74,223,000 75,938,000 74,544,000 80,810,000 65,849,000 57,141,000 56,640,000 69,448,000 45,931,000 54,806,000 50,775,000 55,649,000 59,196,000 58,937,000 60,683,000 60,252,000 58,804,000 47,361,000 45,196,000 55,966,000 55,166,000 53,727,000 51,121,000 60,852,000 54,045,000 52,162,000 49,014,000 61,800,000 40,334,000 40,298,000 43,157,000 50,351,000 35,327,000 35,400,000 38,466,000 30,448,000 30,784,000 32,137,000 32,170,000 28,174,000 27,979,000 33,158,000 32,199,000 52,172,000 28,376,000 25,624,000 27,647,000 31,055,000 30,341,000 25,436,000 32,946,000 33,657,000 18,959,000 17,754,000 15,286,000 16,259,000 27,215,000 13,264,000 8,475,000 8,147,000 9,148,000 7,252,000 7,910,000 6,041,000 8,171,000 11,240,000 7,303,000 4,918,000 3,741,000 2,361,000 2,076,000 3,165,000 2,728,000  
        total current assets
      1,556,889,000 1,517,627,000 1,498,576,000 1,503,016,000 1,428,907,000 1,819,514,000 1,715,973,000 1,569,211,000 1,544,698,000 1,555,453,000 1,567,226,000 1,480,283,000 1,352,405,000 1,510,602,000 1,393,425,000 1,291,719,000 1,221,391,000 1,370,027,000 1,268,494,000 1,213,462,000 1,151,149,000 1,129,707,000 1,175,730,000 1,127,341,000 1,066,447,000 1,178,661,000 1,096,150,000 1,019,255,000 921,214,000 965,353,000 1,206,513,000 807,436,000 815,778,000 794,179,000 788,213,000 777,789,000 737,136,000 783,171,000 864,066,000 811,742,000 744,351,000 741,625,000 788,479,000 904,423,000 847,934,000 884,173,000 856,968,000 785,268,000 731,226,000 803,861,000 746,910,000 664,777,000 651,729,000 674,375,000 692,801,000 724,436,000 719,180,000 770,954,000 677,503,000 632,096,000 593,192,000 788,715,000 767,171,000 532,671,000 478,510,000 499,915,000 697,397,000 613,914,000 550,428,000 552,454,000 543,379,000 557,365,000 589,761,000 661,527,000 368,381,000 285,548,000 268,697,000 294,949,000 245,162,000 226,549,000 234,625,000 298,135,000 271,980,000 171,576,000 151,552,000 150,569,000 132,043,000 125,879,000 118,337,000 99,203,000 197,601,000 183,655,000 156,458,000 91,366,000 89,665,000  
        property and equipment
      166,209,000 169,333,000 170,552,000 168,727,000 162,097,000 150,295,000 150,379,000 152,307,000 152,949,000 159,662,000 164,922,000 164,886,000 163,051,000 153,466,000 144,713,000 144,053,000 141,236,000 142,163,000 132,857,000 117,477,000 100,686,000 101,642,000 95,544,000 91,753,000 92,852,000 93,672,000 92,135,000 87,376,000 84,522,000 84,577,000 82,476,000 75,046,000 75,586,000 75,075,000 70,982,000 60,280,000 59,474,000 61,856,000 66,422,000 68,764,000 71,263,000 74,760,000 77,716,000 80,527,000 79,389,000 82,163,000 83,520,000 83,495,000 85,993,000 79,007,000 66,300,000 65,607,000 66,706,000 68,192,000 66,933,000 68,807,000 71,807,000 74,448,000 75,027,000 71,983,000 70,834,000 73,238,000 74,020,000 77,744,000 79,645,000 80,678,000 74,792,000 76,760,000 76,265,000 78,575,000 76,395,000 75,624,000 69,637,000 67,843,000 65,339,000 64,688,000 61,076,000 51,326,000 33,612,000 31,349,000 29,299,000 29,302,000 27,038,000 27,027,000 24,720,000 23,342,000 20,684,000 20,403,000 21,361,000 20,757,000      1,634,000 
        operating lease assets
      193,796,000 201,492,000 201,414,000 195,754,000 192,266,000 198,318,000 206,945,000 202,511,000 199,596,000 208,910,000 202,505,000 206,819,000 208,894,000 203,764,000 195,339,000 198,893,000 206,673,000 215,995,000 224,961,000 223,618,000 148,322,000 156,645,000 153,818,000 152,245,000 149,570,000 159,777,000 152,064,000 155,100,000 146,389,000                                                                    
        goodwill
      1,239,835,000 1,242,777,000 1,241,422,000 1,242,900,000 1,231,658,000 1,226,556,000 1,240,280,000 1,230,932,000 1,230,645,000 1,234,569,000 1,226,356,000 1,231,769,000 1,230,067,000 1,227,593,000 1,212,541,000 1,227,837,000 1,243,972,000 1,232,791,000 1,234,023,000 1,240,057,000 1,233,292,000 1,234,879,000 1,223,764,000 1,196,162,000 1,191,948,000 1,202,767,000 1,197,406,000 1,172,557,000 1,174,742,000 1,172,316,000 1,175,929,000 1,198,732,000 1,208,011,000 1,204,803,000 1,204,164,000 1,187,664,000 1,183,627,000 1,180,001,000 1,188,230,000 1,189,602,000 1,198,070,000 1,198,298,000 1,199,490,000 1,208,508,000 1,201,652,000 1,211,689,000 1,213,809,000 1,225,403,000 1,221,318,000 1,218,733,000 1,194,414,000 1,263,166,000 1,252,440,000 1,260,035,000 1,327,041,000 1,313,382,000 1,320,002,000 1,309,358,000 1,295,679,000 1,305,170,000 1,295,559,000 1,269,447,000 1,253,798,000 1,197,763,000 1,185,552,000 1,195,949,000 1,173,552,000 1,177,325,000 1,143,689,000 1,151,388,000 1,114,241,000 1,079,078,000 990,247,000 940,878,000 914,264,000 902,748,000 900,291,000 885,711,000 647,317,000 637,985,000 639,188,000 576,612,000 573,223,000 566,480,000 535,083,000 507,656,000 515,398,000 515,191,000 514,834,000 514,544,000 298,315,000 304,548,000 299,270,000 299,241,000 318,228,000 14,423,000 
        intangible assets
      12,908,000 13,547,000 14,158,000 14,938,000 15,831,000 16,770,000 17,523,000 18,377,000 19,455,000 18,285,000 19,233,000 20,741,000 22,158,000 25,514,000 25,673,000 28,613,000 29,647,000 31,990,000 34,504,000 37,653,000 38,172,000 41,550,000                                                                           
        notes receivable
      245,719,000 250,667,000 269,065,000 274,744,000 230,571,000 109,119,000 108,450,000 106,201,000 96,806,000 75,431,000 73,673,000 75,273,000 62,268,000 55,978,000 54,144,000 55,230,000 53,072,000 53,539,000 59,123,000 55,675,000 59,049,000 61,121,000 66,078,000 64,646,000 63,801,000 69,033,000 78,800,000 76,150,000 75,148,000 84,471,000 89,342,000 90,904,000 91,215,000                               24,945,000 24,761,000 20,853,000 20,472,000 20,238,000 17,043,000 15,145,000 14,909,000 15,512,000 11,809,000 11,687,000 11,980,000 12,079,000 10,571,000 7,277,000 7,528,000 6,271,000 3,871,000 2,713,000 2,917,000 3,134,000 3,956,000 9,031,000     8,000,000      
        other assets
      91,174,000 95,085,000 94,598,000 94,081,000 86,372,000 76,258,000 77,630,000 78,105,000 80,379,000 73,568,000 64,911,000 66,540,000 62,140,000 64,490,000 56,259,000 56,823,000 53,300,000 54,404,000 52,962,000 50,485,000 47,530,000 51,819,000 35,812,000 39,172,000 36,881,000 40,800,000 32,467,000 30,005,000 30,010,000 37,771,000 37,849,000 45,915,000 43,472,000 40,929,000 43,984,000 42,155,000 42,142,000 43,696,000 56,043,000 47,693,000 42,072,000 43,518,000 48,364,000 53,174,000 54,867,000 53,319,000 53,120,000 61,097,000 54,438,000 57,900,000 64,986,000 64,748,000 65,771,000 67,046,000 61,964,000 60,483,000 52,655,000 55,687,000 70,317,000 64,305,000 57,667,000 60,312,000 58,832,000 53,639,000 54,496,000 55,621,000 54,348,000 53,645,000 58,515,000 59,948,000 57,432,000 58,416,000 83,901,000 51,329,000 50,031,000 46,946,000 46,274,000 46,156,000 35,657,000 26,798,000 42,988,000 33,961,000 28,766,000 16,116,000 14,444,000 15,980,000 17,180,000 15,678,000 14,914,000 15,924,000 4,491,000 6,192,000 5,928,000 5,799,000 4,940,000  
        total assets
      3,506,530,000 3,490,528,000 3,489,785,000 3,494,160,000 3,347,702,000 3,596,830,000 3,517,180,000 3,357,644,000 3,324,528,000 3,325,878,000 3,318,826,000 3,246,311,000 3,100,983,000 3,241,407,000 3,082,094,000 3,003,168,000 2,949,291,000 3,100,909,000 3,006,924,000 2,938,427,000 2,778,200,000 2,777,363,000 2,794,398,000 2,704,907,000 2,637,181,000 2,783,142,000 2,690,269,000 2,571,363,000 2,464,901,000 2,379,121,000 2,628,838,000 2,257,412,000 2,276,452,000 2,257,241,000 2,260,593,000 2,224,793,000 2,172,562,000 2,225,368,000 2,341,618,000 2,287,464,000 2,225,044,000 2,229,018,000 2,294,012,000 2,437,064,000 2,371,369,000 2,430,527,000 2,414,891,000 2,373,240,000 2,312,567,000 2,364,947,000 2,277,542,000 2,270,881,000 2,239,452,000 2,275,452,000 2,349,948,000 2,374,081,000 2,371,097,000 2,411,084,000 2,326,519,000 2,299,695,000 2,247,264,000 2,414,359,000 2,403,543,000 2,104,740,000 2,045,622,000 2,077,338,000 2,251,779,000 2,178,061,000 2,071,210,000 2,088,169,000 2,045,522,000 1,980,281,000 1,880,372,000 1,858,624,000 1,526,412,000 1,429,299,000 1,408,904,000 1,391,156,000 1,030,877,000 984,677,000 972,100,000 959,464,000 924,316,000 807,419,000 743,128,000 708,525,000 691,543,000 684,633,000 678,183,000 660,565,000 528,537,000 520,321,000 494,511,000 430,531,000 447,015,000  
        liabilities and stockholders’ equity
                                                                                                      
        current liabilities
                                                                                                      
        accounts payable, accrued expenses and other
      254,298,000 206,247,000 186,657,000 184,869,000 236,023,000 224,394,000 201,806,000 182,667,000 226,787,000 223,758,000 170,518,000 172,288,000 177,223,000 173,953,000 175,491,000 165,455,000 173,356,000 165,025,000 157,794,000 156,736,000 167,818,000 170,066,000 164,493,000 163,162,000 170,930,000 158,936,000 158,136,000 138,344,000 128,642,000 104,600,000 116,222,000 93,988,000 105,966,000 94,873,000 108,054,000 85,403,000 87,411,000 87,320,000 97,144,000 94,782,000 95,606,000 89,845,000 101,464,000 90,083,000 102,231,000 99,494,000 99,857,000 96,005,000 112,808,000 126,886,000 107,363,000 85,974,000 97,877,000 98,109,000 99,536,000 96,421,000 120,024,000 132,773,000 108,050,000 105,589,000 102,570,000 105,864,000 69,423,000 71,239,000 74,468,000 81,193,000 60,026,000 45,099,000 67,869,000 109,036,000 61,399,000 70,322,000 73,705,000 103,410,000 60,214,000 50,564,000 65,727,000 77,914,000 33,530,000 20,460,000 23,576,000 21,762,000 15,820,000 15,464,000 17,347,000 20,771,000 14,681,000 12,513,000 13,784,000 18,623,000       
        accrued compensation
      369,346,000 712,335,000 561,902,000 467,073,000 333,174,000 639,745,000 556,606,000 463,669,000 332,677,000 601,074,000 481,007,000 420,885,000 308,762,000 541,892,000 422,985,000 357,222,000 296,461,000 507,556,000 451,549,000 368,882,000 285,528,000 455,933,000 397,147,000 314,018,000 240,192,000 416,903,000 354,299,000 280,512,000 212,423,000 333,536,000 286,149,000 224,663,000 191,055,000 268,513,000 232,291,000 191,683,000 172,593,000 261,500,000 229,611,000 193,826,000 157,687,000 227,783,000 203,492,000 183,416,000 147,030,000 220,959,000 200,513,000 169,923,000 124,870,000 222,738,000 164,585,000 144,391,000 132,109,000 168,392,000 154,773,000 137,378,000 110,252,000 180,366,000 158,263,000 141,972,000 110,433,000 143,971,000 128,580,000 116,480,000 101,164,000 152,807,000 149,409,000 114,535,000 97,654,000 133,103,000 127,435,000 98,344,000 84,190,000 102,054,000 88,764,000 62,908,000 49,567,000 76,765,000 56,399,000 50,733,000 48,392,000 72,688,000 48,176,000 42,735,000 31,276,000 39,383,000           
        billings in excess of services provided
      53,184,000 56,607,000 60,476,000 61,554,000 68,094,000 67,620,000 64,764,000 67,558,000 68,236,000 67,937,000 57,006,000 51,528,000 52,467,000 53,646,000 50,523,000 48,217,000 40,113,000 45,535,000 36,279,000 36,944,000 42,432,000 44,172,000 46,621,000 40,288,000 40,219,000 36,698,000 34,349,000 45,022,000 50,400,000 44,434,000 38,178,000 33,653,000 46,446,000 46,942,000 26,521,000 37,652,000 33,324,000 29,635,000 38,774,000 36,434,000 34,226,000 29,449,000 29,554,000 30,122,000 30,894,000 35,639,000 39,492,000 36,946,000 35,532,000 28,692,000 26,186,000 25,413,000 33,238,000 31,675,000 25,519,000 19,958,000 21,622,000 19,063,000 27,726,000 35,674,000 29,578,000 27,836,000 29,907,000 33,995,000 31,743,000 34,101,000 28,635,000 30,569,000 28,267,000 30,872,000 21,878,000 18,223,000 17,006,000 17,826,000 18,467,000 18,427,000 17,657,000 16,863,000 10,746,000 11,150,000 11,845,000 10,477,000 12,147,000 12,786,000 9,522,000 8,924,000 8,772,000 8,583,000 10,113,000 16,336,000 18,361,000 16,552,000 15,483,000 19,921,000 32,143,000  
        total current liabilities
      676,828,000 975,189,000 809,035,000 713,496,000 637,291,000 931,759,000 823,176,000 713,894,000 627,700,000 892,769,000 708,531,000 644,701,000 538,452,000 769,491,000 648,999,000 570,894,000 509,930,000 718,116,000 645,622,000 562,562,000 495,778,000 670,171,000 608,261,000 517,468,000 451,341,000 612,537,000 546,784,000 463,878,000 391,465,000 482,570,000 737,400,000 352,304,000 343,467,000 410,328,000 366,866,000 314,738,000 293,328,000 378,455,000 365,529,000 325,042,000 287,519,000 347,077,000 334,510,000 314,621,000 291,155,000 367,092,000 345,862,000 308,874,000 299,210,000 384,330,000 304,134,000 261,778,000 269,245,000 304,197,000 367,064,000 415,437,000 408,553,000 497,837,000 446,086,000 293,903,000 278,316,000 289,282,000 394,219,000 366,419,000 350,988,000 406,202,000 375,683,000 339,550,000 340,121,000 423,909,000 362,781,000 338,593,000 327,100,000 381,062,000 183,240,000 146,914,000 147,964,000 178,459,000 100,675,000 82,343,000 83,813,000 104,927,000 76,143,000 106,610,000 80,645,000 90,328,000 78,828,000 72,269,000 66,376,000 84,270,000 63,018,000 68,915,000 64,092,000 77,588,000 74,616,000  
        long-term debt
      754,257,000 365,000,000 510,000,000 470,000,000 160,000,000   60,000,000 205,000,000  285,000,000 340,548,000 360,583,000 315,172,000 314,756,000 314,337,000 328,936,000 297,158,000 319,355,000 391,581,000 458,840,000 286,131,000 308,454,000 315,808,000 328,193,000 275,609,000 273,055,000 290,531,000 268,037,000 265,571,000 263,317,000 371,662,000 441,473,000 396,284,000 461,095,000 480,906,000 402,717,000 365,528,000 470,339,000 495,150,000 501,961,000 494,772,000 520,000,000 700,000,000 700,000,000 700,000,000 705,000,000 711,000,000 711,000,000 711,000,000 711,000,000                    416,390,000 416,217,000 417,321,000 415,653,000 564,069,000 562,508,000 563,815,000 563,441,000 348,361,000 346,458,000 347,350,000 348,431,000 349,252,000 106,875,000 100,000,000 83,750,000 90,000,000 106,000,000 123,000,000 105,000,000 11,375,000      
        noncurrent operating lease liabilities
      214,955,000 224,510,000 225,988,000 216,746,000 201,193,000 208,036,000 216,992,000 214,517,000 213,576,000 223,774,000 217,755,000 223,403,000 227,066,000 221,604,000 213,449,000 218,001,000 225,386,000 236,026,000 232,390,000 230,133,000 153,376,000 161,677,000 161,976,000 161,753,000 163,594,000 176,378,000 171,410,000 177,110,000 173,874,000                                                                    
        deferred income taxes
      103,251,000 99,611,000 106,780,000 106,973,000 110,858,000 111,825,000 138,562,000 136,374,000 136,065,000 140,976,000 157,724,000 155,754,000 158,315,000 162,374,000 161,486,000 167,797,000 165,913,000 170,612,000 168,232,000 169,009,000 157,861,000 158,342,000 150,572,000 155,293,000 152,347,000 151,352,000 159,406,000 155,799,000 163,303,000 155,088,000 153,045,000 134,081,000 129,274,000 124,471,000 181,293,000 175,683,000 177,339,000 173,799,000 170,768,000 161,433,000 150,557,000 139,787,000 178,180,000 161,534,000 167,463,000 161,932,000 152,583,000 149,130,000 142,390,000 137,697,000 140,746,000 129,111,000 111,440,000  6,215,000 7,375,000 1,997,000 12,254,000 667,000 4,052,000 4,052,000  4,657,000 4,476,000 25,444,000 20,476,000 24,742,000 24,607,000 24,372,000 24,372,000 15,038,000 10,475,000 10,513,000 10,544,000 18,112,000 8,995,000 8,897,000 8,393,000 9,816,000 9,425,000 9,425,000 6,404,000 6,598,000 5,882,000 6,002,000 6,287,000 5,377,000 4,798,000 4,798,000 4,798,000 2,364,000 2,364,000 2,364,000 2,364,000 941,000 384,000 
        other liabilities
      95,540,000 92,487,000 88,327,000 87,064,000 88,722,000 86,920,000 86,251,000 83,479,000 87,831,000 86,939,000 85,321,000 86,753,000 95,679,000 91,045,000 98,821,000 101,520,000 97,108,000 95,676,000 97,022,000 95,932,000 95,995,000 100,861,000 90,638,000 75,482,000 73,022,000 78,124,000 78,380,000 65,033,000 66,200,000 127,067,000 123,601,000 123,564,000 124,804,000 134,187,000 120,410,000 114,288,000 102,649,000 100,228,000 103,397,000 102,596,000 103,761,000 99,779,000 98,919,000 97,327,000 95,497,000 98,757,000 98,147,000 96,316,000 82,939,000 89,661,000 85,561,000 83,425,000 83,415,000 80,248,000 72,970,000 70,867,000 76,966,000 75,395,000 86,375,000 87,452,000 85,261,000 80,061,000 79,331,000 61,017,000 58,768,000 53,821,000 48,970,000 49,780,000 47,722,000 45,037,000 47,778,000 45,075,000 43,884,000 40,546,000 40,104,000 39,363,000 38,274,000 26,374,000 24,662,000 21,136,000 19,713,000 18,269,000               
        total liabilities
      1,844,831,000 1,756,797,000 1,740,130,000 1,594,279,000 1,198,064,000 1,338,540,000 1,264,981,000 1,208,264,000 1,270,172,000 1,344,458,000 1,454,331,000 1,451,159,000 1,380,095,000 1,559,686,000 1,437,511,000 1,372,549,000 1,327,273,000 1,517,588,000 1,462,621,000 1,449,217,000 1,361,850,000 1,377,182,000 1,319,901,000 1,225,804,000 1,168,497,000 1,294,000,000 1,229,035,000 1,152,351,000 1,062,879,000 1,030,296,000 1,277,363,000 981,611,000 1,039,018,000 1,065,270,000 1,129,664,000 1,085,615,000 976,033,000 1,018,010,000 1,110,033,000 1,084,221,000 1,043,798,000 1,081,415,000 1,131,609,000 1,273,482,000 1,254,115,000 1,327,781,000 1,301,592,000 1,265,320,000 1,235,539,000 1,322,688,000 1,241,441,000 1,191,314,000 1,181,124,000 1,207,220,000 1,176,228,000 1,223,758,000 1,221,514,000 1,304,882,000 1,274,750,000 1,271,196,000 1,242,218,000 1,247,040,000 1,235,254,000 956,821,000 926,970,000 973,124,000 940,440,000 900,242,000 894,482,000 964,342,000                           
        commitments and contingencies
                                                                                                      
        stockholders’ equity
                                                                                                      
        preferred stock, 0.01 par value...
                                                                                                      
        common stock, 0.01 par value...
      301,000 309,000 313,000 327,000 349,000 359,000 360,000 359,000 357,000 355,000 355,000 340,000 340,000 340,000 344,000 345,000 345,000 343,000 343,000 343,000 342,000 345,000 360,000 367,000 371,000 374,000 376,000 376,000 380,000 381,000 384,000 382,000 377,000 377,000 379,000 395,000 413,000 420,000 423,000 420,000 414,000 412,000 419,000 418,000 415,000 412,000 410,000 409,000 409,000 405,000 401,000 405,000 402,000 408,000 414,000 420,000 420,000 415,000 410,000 416,000 420,000 461,000 464,000 472,000 470,000 470,000 518,000 517,000 513,000 509,000 508,000 504,000 496,000 490,000 431,000 425,000 426,000 419,000 403,000 399,000 399,000 390,000 390,000 437,000 431,000 425,000 424,000 426,000 424,000 423,000 418,000      
        additional paid-in capital
       354,000    39,650,000 41,555,000 33,955,000 21,162,000 16,760,000 9,712,000 5,473,000    499,000  13,662,000 8,490,000 4,270,000   46,642,000 122,743,000 170,062,000 216,162,000 240,508,000 242,075,000 284,864,000 299,534,000 315,720,000 280,201,000 261,765,000 266,035,000 273,765,000 325,446,000 387,797,000 416,816,000 429,902,000 418,776,000 404,523,000 400,705,000 421,532,000 415,793,000 404,475,000 393,174,000 385,591,000 380,193,000 374,242,000 362,322,000 349,417,000 359,373,000 349,909,000 367,978,000 387,986,000 400,027,000 396,074,000 383,978,000 365,746,000 338,789,000 334,080,000 532,929,000 539,631,000 559,244,000 552,198,000 535,754,000 776,870,000 768,173,000 752,059,000 717,158,000 700,574,000 681,838,000 635,106,000 601,637,000 330,092,000 312,012,000 314,766,000 294,350,000 259,547,000 243,983,000 245,687,000 238,055,000 242,498,000 358,405,000 345,102,000 333,735,000 331,907,000 335,834,000  332,823,000 325,684,000 324,375,000 313,485,000 200,576,000 193,997,000  
        retained earnings
      1,801,055,000 1,862,672,000 1,882,483,000 2,027,779,000 2,311,287,000 2,394,853,000 2,345,143,000 2,278,677,000 2,194,730,000 2,114,765,000 2,033,132,000 1,949,815,000 1,887,420,000 1,858,103,000 1,868,424,000 1,805,485,000 1,756,704,000 1,698,156,000 1,659,947,000 1,590,467,000 1,527,685,000 1,506,271,000 1,568,546,000 1,518,374,000 1,470,200,000 1,413,453,000 1,384,392,000 1,323,970,000 1,259,372,000 1,196,727,000 1,173,003,000 1,128,670,000 1,085,061,000 1,045,774,000 978,886,000 946,672,000 951,828,000 941,001,000 933,900,000 912,209,000 885,662,000 855,481,000 845,132,000 834,823,000 813,114,000 789,428,000 788,507,000 765,985,000 748,738,000 730,621,000 737,760,000 788,381,000 764,895,000 741,215,000 827,092,000 804,379,000 796,632,000 778,201,000 738,321,000 726,129,000 709,217,000 687,419,000 676,743,000 654,780,000 629,714,000 615,529,000 578,956,000 547,779,000 510,554,000 486,493,000 455,300,000 427,757,000 392,347,000 361,058,000 330,264,000 307,281,000 284,199,000 268,937,000 251,581,000 251,867,000 239,200,000 226,913,000 208,612,000 197,409,000 183,020,000 170,545,000 162,928,000 151,977,000 139,184,000 127,667,000 115,003,000 99,841,000 87,641,000 68,198,000 53,220,000  
        accumulated other comprehensive loss
      -139,657,000 -129,604,000 -133,141,000 -128,225,000 -161,998,000 -176,572,000 -134,859,000 -163,611,000 -161,893,000 -150,460,000 -178,704,000 -160,476,000 -166,872,000 -176,722,000 -224,185,000 -175,710,000 -135,031,000 -128,840,000 -124,477,000 -105,870,000 -111,677,000 -106,435,000 -141,051,000 -162,381,000 -171,949,000 -140,847,000 -164,042,000 -147,409,000 -142,594,000 -147,817,000 -137,632,000 -133,452,000 -109,769,000 -120,215,000 -122,101,000 -133,335,000 -143,509,000 -150,879,000 -132,640,000 -128,162,000 -109,353,000 -108,995,000 -104,680,000 -87,452,000 -100,750,000 -80,268,000 -61,209,000 -38,667,000 -46,361,000 -51,089,000 -51,477,000 -68,592,000 -56,878,000 -41,369,000 -41,772,000 -54,503,000 -43,543,000 -56,392,000 -52,708,000 -36,835,000 -38,671,000 -53,490,000 -48,549,000 -66,577,000 -63,730,000 -47,539,000                        -24,000 -182,000 -356,000 -528,000 -693,000 -838,000  
        total stockholders’ equity
      1,661,699,000 1,733,731,000 1,749,655,000 1,899,881,000 2,149,638,000 2,258,290,000 2,252,199,000 2,149,380,000 2,054,356,000 1,981,420,000 1,864,495,000 1,795,152,000 1,720,888,000 1,681,721,000                             1,162,403,000 1,163,582,000 1,117,254,000 1,102,746,000 1,113,299,000 1,107,920,000 1,077,028,000 1,042,259,000 1,036,101,000 1,079,567,000 1,058,328,000 1,068,232,000 1,173,720,000 1,150,323,000 1,149,583,000 1,106,202,000 1,051,769,000 1,028,499,000 1,005,046,000 1,167,319,000 1,168,289,000 1,147,919,000 1,118,652,000 1,104,214,000 1,311,339,000 1,277,819,000 1,176,728,000 1,123,827,000 1,145,931,000 1,119,929,000 1,037,503,000 972,250,000 675,404,000 622,074,000 600,977,000 565,100,000 511,531,000 496,249,000 485,286,000 454,269,000 444,100,000 548,383,000 520,453,000 496,154,000 489,282,000 482,960,000 468,957,000 455,156,000 440,844,000 424,049,000 400,587,000 267,975,000 246,205,000  
        total liabilities and stockholders’ equity
      3,506,530,000 3,490,528,000 3,489,785,000 3,494,160,000 3,347,702,000 3,596,830,000 3,517,180,000 3,357,644,000 3,324,528,000 3,325,878,000 3,318,826,000 3,246,311,000 3,100,983,000 3,241,407,000                             2,294,012,000 2,437,064,000 2,371,369,000 2,430,527,000 2,414,891,000 2,373,240,000 2,312,567,000 2,364,947,000 2,277,542,000 2,270,881,000 2,239,452,000 2,275,452,000 2,349,948,000 2,374,081,000 2,371,097,000 2,411,084,000 2,326,519,000 2,299,695,000 2,247,264,000 2,414,359,000 2,403,543,000 2,104,740,000 2,045,622,000 2,077,338,000 2,251,779,000 2,178,061,000 2,071,210,000 2,088,169,000 2,045,522,000 1,980,281,000 1,880,372,000 1,858,624,000 1,526,412,000 1,429,299,000 1,408,904,000 1,391,156,000 1,030,877,000 984,677,000 972,100,000 959,464,000 924,316,000 807,419,000 743,128,000 708,525,000 691,543,000 684,633,000 678,183,000 660,565,000 528,537,000 520,321,000 494,511,000 430,531,000 447,015,000  
        liabilities and stockholders' equity
                                                                                                      
        stockholders' equity
                                                                                                      
        total stockholders' equity
                    1,644,583,000 1,630,619,000 1,622,018,000 1,583,321,000 1,544,303,000 1,489,210,000 1,416,350,000 1,400,181,000 1,474,497,000 1,479,103,000 1,468,684,000 1,489,142,000 1,461,234,000 1,419,012,000 1,402,022,000 1,348,825,000 1,351,475,000 1,275,801,000 1,237,434,000 1,191,971,000 1,130,929,000 1,139,178,000 1,196,529,000 1,207,358,000 1,231,585,000 1,203,243,000 1,181,246,000 1,147,603,000                                                       
        total liabilities and stockholders' equity
                    3,082,094,000 3,003,168,000 2,949,291,000 3,100,909,000 3,006,924,000 2,938,427,000 2,778,200,000 2,777,363,000 2,794,398,000 2,704,907,000 2,637,181,000 2,783,142,000 2,690,269,000 2,571,363,000 2,464,901,000 2,379,121,000 2,628,838,000 2,257,412,000 2,276,452,000 2,257,241,000 2,260,593,000 2,224,793,000 2,172,562,000 2,225,368,000 2,341,618,000 2,287,464,000 2,225,044,000 2,229,018,000                                                       
        accounts receivable:
                                                                                                      
        billed receivables
                            603,832,000 578,722,000 584,620,000 540,584,000 552,253,000 557,412,000 504,003,000 437,797,000 477,408,000 455,707,000 417,085,000 390,996,000 415,090,000 399,100,000 383,268,000 365,385,000 416,960,000 415,750,000 420,824,000 405,000,000 426,947,000 419,906,000 382,333,000 381,464,000 401,696,000 423,058,000 375,176,000 352,411,000 345,407,000 362,664,000 334,539,000 314,491,000 363,486,000 355,598,000 335,041,000 335,758,000 348,480,000 318,554,000 278,691,000 268,386,000 263,374,000 249,511,000 243,045,000 241,911,000 254,601,000 267,734,000 255,071,000 237,009,000 264,203,000 250,485,000 230,319,000 190,900,000 182,489,000 156,255,000 148,871,000 135,220,000 125,958,000 106,716,000 105,906,000 87,947,000 106,105,000 99,741,000 97,365,000 89,536,000           
        unbilled receivables
                            482,586,000 435,234,000 436,944,000 418,288,000 455,342,000 429,285,000 389,805,000 319,205,000 366,997,000 368,360,000 367,516,000 312,569,000 328,526,000 345,228,000 330,062,000 288,331,000 326,297,000 330,730,000 329,933,000 280,538,000 310,778,000 298,964,000 290,297,000 248,462,000 305,572,000 296,299,000 296,838,000 233,307,000 260,211,000 223,875,000 234,961,000 208,797,000 215,456,000 200,361,000 195,740,000 173,440,000 200,999,000 199,825,000 181,201,000 120,896,000 148,248,000 129,061,000 135,911,000 104,959,000 119,172,000 127,200,000 127,241,000 98,340,000 118,344,000 115,264,000 113,403,000 84,743,000 100,483,000 83,566,000 71,758,000 56,228,000 72,981,000 71,445,000 78,184,000 56,871,000 47,633,000 47,848,000 47,412,000 30,663,000 39,025,000         3,224,000 
        allowance for doubtful accounts and unbilled services
                            -323,658,000 -299,038,000 -284,666,000 -265,500,000 -268,132,000 -243,295,000 -237,681,000 -202,394,000 -221,008,000 -216,612,000 -201,013,000 -180,687,000 -196,484,000 -191,113,000 -187,150,000 -178,819,000 -195,669,000 -199,182,000 -197,527,000 -185,754,000 -183,325,000 -169,570,000 -159,345,000 -144,825,000 -141,611,000 -139,620,000 -126,942,000 -109,273,000 -110,708,000 -106,507,000 -98,904,000 -94,048,000 -93,885,000 -83,300,000 -81,806,000 -80,096,000 -80,443,000 -72,204,000 -63,581,000 -63,205,000 -65,306,000 -62,926,000 -63,728,000 -59,328,000 -63,590,000 -64,581,000 -58,641,000 -45,309,000 -45,633,000 -42,381,000 -36,297,000 -30,467,000 -25,886,000 -23,356,000 -24,869,000 -20,351,000 -20,827,000 -18,154,000 -18,876,000 -17,330,000 -15,678,000 -15,384,000 -14,865,000 -16,693,000           
        other intangible assets
                            43,652,000 33,588,000 35,682,000 38,432,000 41,247,000 30,920,000 32,876,000 34,633,000 36,729,000 39,379,000 42,390,000                                          75,067,000 73,520,000 76,268,000 77,711,000 33,442,000 23,195,000 26,000,000 21,454,000 23,309,000 26,220,000 17,329,000 10,978,000 6,238,000 7,482,000 8,737,000 10,137,000       
        commitments and contingent liabilities
                                                                                                      
        current portion of long-term debt
                                    296,851,000             11,000,000 11,000,000 11,000,000 6,000,000 6,000,000 26,000,000 6,014,000 6,000,000                    152,069,000 151,704,000 152,199,000 157,772,000 15,795,000 15,015,000 15,013,000 6,917,000      35,625,000 22,500,000 21,250,000 20,000,000 18,750,000 17,500,000 16,250,000 9,504,000 20,000,000 20,000,000 20,000,000 16,083,000  
        other intangible assets, net of amortization
                                       44,150,000 46,788,000 48,213,000 49,895,000 52,120,000 54,493,000 57,568,000 61,193,000 63,935,000 67,252,000 70,356,000 72,264,000 77,034,000 80,913,000 86,270,000 88,871,000 97,148,000 92,738,000 101,675,000 101,858,000 104,181,000 104,068,000 107,782,000 114,666,000 118,889,000 124,623,000 132,035,000 131,050,000 134,970,000 164,896,000 161,254,000 168,012,000 175,962,000 180,597,000 184,318,000 184,137,000 189,304,000 199,429,000 154,335,000 96,350,000 84,673,000                       
        notes receivable, net of current portion
                                       98,105,000 106,462,000 108,692,000 100,288,000 104,524,000 112,364,000 112,095,000 108,095,000 106,882,000 112,711,000 120,076,000 115,263,000 122,149,000 126,561,000 131,707,000 130,721,000 108,298,000 112,194,000 110,908,000 100,948,000 101,623,000 97,141,000 99,191,000 92,787,000 81,748,000 83,370,000 94,106,000 98,962,000 87,677,000 84,826,000 81,669,000 79,407,000 69,213,000 71,093,000 72,099,000 58,176,000 56,500,000 54,646,000 55,463,000 50,476,000 52,374,000 53,330,000 55,849,000 56,298,000 35,303,000 35,687,000 29,801,000                 
        current portion of deferred tax assets
                                                38,842,000 25,127,000 24,840,000 27,332,000 29,731,000 29,046,000 26,543,000 26,690,000 31,628,000 17,765,000 3,703,000 3,615,000                                           
        restricted cash
                                                          1,118,000 1,190,000 1,192,000 1,152,000 10,267,000 10,213,000 10,231,000 11,383,000 11,386,000 10,518,000 8,632,000                                  
        current portion of long-term debt and capital lease obligations
                                                         6,000,000 6,021,000 6,021,000 81,021,000 154,305,000 154,658,000 153,381,000 152,047,000 6,616,000 31,683,000 7,559,000 166,309,000 144,705,000 143,613,000 138,101,000 137,613,000 149,347,000 146,331,000 150,898,000                           
        long-term debt and capital lease obligations, net of current portion
                                                         717,000,000 717,024,000 717,024,000 636,821,000 643,078,000 643,330,000 643,579,000 645,488,000 790,321,000 784,093,000 785,563,000 644,376,000 417,124,000 417,260,000 417,397,000 417,532,000 418,187,000 418,572,000 418,592,000                           
        income taxes receivable
                                                            11,562,000 15,790,000 8,300,000 10,081,000 11,997,000 17,885,000 11,796,000 13,246,000 21,138,000 31,192,000                                 
        short-term investments
                                                                        35,655,000                              
        accumulated other comprehensive income
                                                                        -45,005,000 -38,650,000 -86,398,000 -80,333,000 -10,451,000 9,830,000 9,554,000 9,065,000 14,617,000 2,356,000 1,586,000 1,394,000                   
        accounts receivable - sum
                                                                             323,368,000 307,425,000  257,086,000 216,465,000 195,760,000 171,097,000 178,112,000 160,007,000 165,214,000 127,488,000 138,060,000 132,205,000 129,912,000 103,506,000 109,508,000          
        accounts receivable: - sum
                                                                               245,176,000                       
        unearned compensation
                                                                                       -11,089,000 -7,400,000 -7,868,000 -8,100,000 -8,551,000 -5,977,000 -5,277,000 -4,866,000 -5,733,000 -79,000 -229,000 -285,000 -346,000 -411,000  
        cash held in escrow to acquire business
                                                                                     9,000,000                 
        deferred rent, interest rate swap liability and other
                                                                                        17,912,000              
        deferred rent, capital lease obligations and other, net of current portion
                                                                                         13,079,000 13,086,000 12,745,000 10,198,000          
        allowance for doubtful accounts
                                                                                            -19,977,000          
        accrued compensation and benefits
                                                                                            35,375,000 32,423,000 24,979,000 33,061,000       
        unbilled receivables, net of allowance of 4,384 in 2003 and 4,569 in 2004
                                                                                             31,237,000         
        capital lease obligations and other, net of current portion
                                                                                             1,973,000 1,975,000 1,822,000       
        unbilled receivables, net of allowance of 4,384 in 2003 and 4,894 in 2004
                                                                                              35,290,000        
        additional paid-in-capital
                                                                                              334,215,000        
        unbilled receivables, net of allowance of 4,384 in 2003 and 2,061 in 2002
                                                                                               26,138,000       
        current assets of discontinued operations
                                                                                                 8,356,000 9,443,000 11,084,000 12,625,000  
        long-term assets of discontinued operations
                                                                                                 5,658,000 12,508,000 14,920,000   
        current liabilities of discontinued operations
                                                                                                   664,000   
        unbilled receivables, net of allowance of 2,061 in 2002 and 4,586 in 2003
                                                                                                21,159,000      
        furniture, equipment and software
                                                                                                29,319,000 27,565,000 25,823,000 22,588,000 20,496,000  
        leasehold improvements
                                                                                                5,688,000 5,438,000 5,142,000 4,714,000 4,157,000  
        property and equipment - sum
                                                                                                35,007,000      
        accumulated depreciation and amortization
                                                                                                -16,819,000 -15,452,000 -14,109,000 -12,364,000 -11,335,000  
        total property and equipment
                                                                                                18,188,000      
        other intangible assets, net of accumulated amortization of 1,033 in 2002 and 3,358 in 2003
                                                                                                1,742,000      
        accounts payable and accrued expenses
                                                                                                11,301,000 7,116,000 8,126,000 7,410,000 5,502,000  
        accrued compensation expense
                                                                                                18,765,000 23,778,000 19,648,000 25,400,000 18,825,000  
        income taxes payable
                                                                                                4,594,000 964,000 65,000 3,534,000 1,499,000  
        other current liabilities
                                                                                                300,000 312,000 577,000 466,000 434,000  
        other long-term liabilities
                                                                                                1,458,000 1,673,000 1,185,000 1,405,000 1,613,000  
        current assets:
                                                                                                      
        accounts receivables
                                                                                                 37,853,000 31,925,000 29,271,000 28,662,000  
        unbilled receivables, less allowance of 2,061 in 2002 and 4,237 in 2003
                                                                                                 20,228,000     
        property and equipment:
                                                                                                      
        property and equipment: - sum
                                                                                                 33,003,000 30,965,000 27,302,000 24,653,000  
        other intangible assets, net of accumulated amortization of 1,033 in 2002 and 2,583 in 2003
                                                                                                 2,517,000     
        current liabilities:
                                                                                                      
        long-term debt, less current portion
                                                                                                 15,879,000 20,879,000 77,833,000 122,833,000  
        stockholders’ equity:
                                                                                                      
        preferred stock, .01 par value...
                                                                                                      
        common stock, .01 par value...
                                                                                                 418,000 274,000 240,000 237,000  
        unbilled receivables, less allowance of 2,061 in 2002 and 2,442 in 2003
                                                                                                  35,153,000    
        other intangible assets, net of accumulated amortization of 1,033 in 2002 and 1,809 in 2003
                                                                                                  3,291,000    
        unbilled receivables, less allowance of 2,061 in 2002 and 682 in 2001
                                                                                                   35,576,000   
        income taxes recoverable
                                                                                                      
        other intangible assets, net of accumulated amortization of 1,033 in 2002
                                                                                                   4,067,000   
        unbilled receivables, less allowance of 682 in 2001 and 3,731 in 2002
                                                                                                    41,091,000  
        other intangible assets, net of accumulated amortization of 252 in 2002
                                                                                                    4,738,000  
        non-current assets of discontinued operations
                                                                                                    15,976,000  
        other current assets
                                                                                                     292,000 
        total assets of discontinued operations
                                                                                                     28,298,000 
      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 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 
                                                                                                      
          operating activities
                                                                                                      
          net income
        57,631,000 54,531,000 82,818,000 71,698,000 61,824,000 49,710,000 66,466,000 83,947,000 79,965,000 81,633,000 83,317,000 62,395,000 47,547,000 47,498,000 77,267,000 51,428,000 59,321,000 38,208,000 69,480,000 62,782,000 64,496,000 55,589,000 50,172,000 48,174,000 56,747,000 29,061,000 60,422,000 64,598,000 62,645,000 23,724,000 44,333,000 43,609,000 38,945,000 66,888,000 32,214,000 -5,156,000 14,016,000 7,101,000 21,691,000 26,547,000 30,181,000 10,349,000 10,309,000 21,709,000 23,686,000 921,000 22,522,000 17,247,000 18,117,000 -7,139,000 -50,621,000 23,486,000 23,680,000 -85,877,000 22,713,000 7,747,000 18,431,000 39,881,000 25,312,000 16,912,000 21,798,000 10,676,000 21,963,000 25,066,000 14,185,000 36,573,000 37,556,000 37,225,000 31,672,000 31,193,000 27,543,000 35,410,000 31,289,000 30,794,000 22,983,000 23,082,000 15,262,000 17,356,000 -286,000 12,667,000 12,287,000 18,301,000 11,203,000 14,389,000 12,475,000 7,617,000 10,951,000 12,793,000 11,517,000 12,664,000 15,162,000 12,200,000 19,443,000 14,978,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                                      
          depreciation of property and equipment
        12,289,000 12,173,000 12,123,000 11,323,000 10,145,000                                                                                          
          amortization of intangible assets
        612,000 629,000 780,000 1,053,000 1,017,000 1,034,000 1,053,000 1,080,000 1,016,000 1,220,000 1,340,000 1,417,000 2,182,000                                                                                  
          amortization of notes receivable
        23,099,000 22,835,000 20,322,000 20,515,000 9,930,000                                                                                          
          provision for expected credit losses
        7,283,000 17,026,000 13,901,000 4,695,000 7,214,000 21,939,000 8,453,000 8,503,000 11,420,000 13,802,000 10,159,000 4,176,000 7,012,000 6,583,000 4,349,000 3,893,000 4,859,000 1,335,000 6,580,000 3,404,000 4,832,000                                                                          
          share-based compensation
        10,608,000 10,630,000 9,023,000 9,918,000 9,753,000 10,461,000 9,874,000 9,289,000 8,812,000 8,122,000 7,509,000 7,538,000 6,365,000 6,923,000 6,441,000 6,083,000 5,967,000 5,901,000 4,960,000 4,948,000 7,242,000 5,328,000 5,429,000 4,693,000 7,454,000 3,918,000                                                                     
          deferred income taxes
        2,933,000 5,529,000 710,000 8,617,000 8,889,000 -12,837,000 3,072,000 1,267,000 -8,107,000 -20,851,000 1,969,000 -3,555,000 -3,016,000 -1,316,000 -11,853,000 334,000 2,379,000 -170,000 -4,674,000 6,190,000 3,612,000 -7,474,000 -5,786,000 3,583,000 545,000                                                                  2,037,000    
          other
        232,000 750,000 273,000 -116,000 275,000                 32,000   54,000 23,000 267,000 -42,000 18,000 -47,000 771,000 27,000 314,000 55,000 230,000 12,000 -45,000 -520,000 -558,000 -81,000 -86,000 -451,000 -91,000 -132,000 -164,000 10,000 75,000 -443,000 -1,296,000 -89,000 -186,000 -11,000 -81,000 -33,000 68,000 73,000 88,000 -695,000 -247,000 383,000 1,034,000 948,000 161,000 -476,000 197,000 -3,109,000 1,246,000 62,000 524,000 950,000 6,000 -171,000 808,000 -167,000 -306,000 22,000 802,000 -2,000 -15,000             768,000 
          changes in operating assets and liabilities, net of effects from acquisitions:
                                                                                                      
          accounts receivable, billed and unbilled
        -123,341,000 88,447,000 -30,973,000 -16,844,000 -74,890,000 118,344,000 15,102,000 -41,905,000 -73,201,000 104,417,000 -87,714,000 -152,260,000 -93,739,000 68,613,000 -70,543,000 -114,266,000 -66,471,000 54,270,000 23,294,000 -45,442,000 -93,396,000 59,691,000 -43,687,000 18,159,000 -60,963,000 49,750,000 -4,790,000 -91,108,000 -95,746,000 58,335,000 -31,070,000 -37,622,000 -61,677,000 21,809,000 5,460,000 -25,611,000 -52,489,000 70,789,000 -9,817,000 -5,454,000 -52,047,000 48,763,000 -13,701,000 -29,380,000 -41,330,000 64,775,000 7,940,000 -44,313,000 -71,474,000 15,976,000 -13,439,000 -11,116,000 -47,711,000 58,775,000 -12,276,000 -28,194,000 -21,996,000 35,954,000 -30,995,000 -53,436,000 -45,701,000 15,964,000 50,000 -2,604,000 -32,291,000 16,806,000 17,687,000 -6,659,000 -41,148,000 32,647,000 -18,385,000 -4,429,000 -59,084,000 12,406,000 -46,553,000 -23,832,000 -27,586,000 28,070,000 -19,489,000 4,241,000 -35,476,000 -3,193,000 -6,449,000 255,000 -25,277,000   -4,352,000 -20,957,000 -2,107,000 4,235,000 3,243,000 -5,192,000 16,710,000 
          notes receivable, net of repayments
        -22,564,000 -3,430,000 -17,495,000 -72,078,000 -162,003,000                                                                                          
          prepaid expenses and other assets
        5,275,000 -6,412,000 4,025,000 -8,779,000 -4,445,000 5,794,000 4,026,000 -7,018,000 -5,612,000 10,858,000 3,466,000 -7,039,000 321,000 3,525,000 -2,256,000 3,019,000 -3,829,000 -2,310,000 -5,583,000 4,828,000 1,900,000 -3,654,000 -685,000 -463,000 9,442,000 -16,831,000 -3,864,000 -7,932,000 5,979,000 -2,084,000 3,977,000 -3,773,000 -378,000 -306,000 -12,000 394,000 553,000 735,000 -2,632,000 -4,767,000 3,824,000 839,000 724,000 -8,703,000 3,583,000 3,634,000 -1,761,000 -3,067,000 11,927,000 -4,471,000 -828,000 -2,016,000 531,000 1,806,000 662,000 3,372,000 -7,735,000 7,603,000 2,223,000 -1,777,000 -4,116,000 -858,000 4,234,000 -9,066,000 6,826,000 -2,117,000 -345,000 2,853,000 943,000 -3,258,000 1,236,000 -7,581,000 -1,974,000 14,000 -629,000 -1,998,000 842,000 5,243,000 -3,827,000 -1,794,000 -319,000 1,533,000 -2,008,000 1,572,000 -1,511,000 -5,148,000         
          accounts payable, accrued expenses and other
        36,268,000 10,485,000 7,765,000 -19,276,000 7,653,000 15,465,000 6,344,000 -13,251,000 4,317,000 17,582,000 -8,736,000 -1,474,000 1,315,000 -13,506,000 8,082,000 10,758,000 3,096,000 20,643,000 -9,227,000 -5,715,000 -7,803,000 6,188,000 5,483,000 -8,906,000 11,136,000 -1,575,000 4,274,000 -11,156,000 -450,000 -7,242,000 15,798,000 -8,996,000 9,348,000 -12,402,000 18,710,000 -2,174,000 287,000 -7,632,000 8,968,000 -3,687,000 5,619,000 -14,876,000 12,593,000 -18,394,000 15,959,000 -9,558,000 7,893,000 -16,170,000 18,815,000 -8,317,000 18,176,000 -17,957,000 16,603,000 -18,066,000 6,824,000 -18,910,000 17,694,000 -3,017,000 14,262,000 -16,270,000 16,497,000 9,913,000 -2,142,000 -9,647,000 20,909,000 2,039,000 -382,000 -12,940,000 -2,896,000 993,000 -7,643,000 4,476,000 2,226,000 -6,958,000 19,748,000 -6,817,000 20,761,000 6,183,000 4,538,000 2,481,000 3,121,000 926,000 6,889,000 -91,000 187,000 2,130,000 10,266,000 2,012,000 -584,000      
          income taxes
        7,922,000 10,745,000 5,397,000 -53,907,000 -30,198,000 -9,239,000 9,525,000 -31,418,000 1,691,000 29,682,000 12,775,000 -18,780,000 5,658,000 -8,262,000 18,774,000 -15,950,000 1,116,000 -7,502,000 11,330,000 -2,660,000 9,355,000 -7,914,000 -12,291,000 -1,677,000 -667,000 -6,281,000 6,353,000 13,138,000 11,286,000 -16,981,000 15,779,000 -337,000 13,480,000 -34,644,000 5,789,000 -563,000 3,650,000 -6,192,000 -1,125,000 11,768,000 17,561,000 3,120,000 -1,087,000 10,934,000 5,524,000 6,968,000 3,483,000 5,516,000 -684,000 -5,026,000 -1,751,000 11,803,000 2,937,000 -1,221,000 11,513,000 -1,481,000 -15,627,000 21,166,000 6,803,000 -2,134,000 -3,608,000 3,135,000 13,380,000 8,843,000 -13,182,000 -884,000 16,610,000 4,537,000 9,614,000 -7,131,000 -5,632,000 10,647,000 17,787,000 1,400,000 1,092,000 -4,842,000 1,667,000                  
          accrued compensation
        -325,018,000 139,742,000 94,173,000 106,211,000 -310,495,000 101,194,000 87,818,000 125,535,000 -271,044,000 115,580,000 65,231,000 100,342,000 -230,967,000 105,694,000 79,446,000 69,351,000 -216,560,000 56,763,000 90,827,000 84,018,000 -172,042,000 57,612,000 88,232,000 68,853,000 -176,070,000 56,183,000 60,339,000 68,077,000 -123,260,000 45,303,000 65,754,000 33,954,000 -92,501,000 35,918,000 30,408,000 28,030,000 -92,561,000 35,864,000 33,004,000 36,993,000 -65,511,000 24,298,000 21,069,000 34,400,000 -74,987,000 28,064,000 30,460,000 46,155,000 -93,573,000 69,719,000 23,665,000 18,395,000 -28,862,000 12,660,000 9,347,000 23,998,000 -67,079,000 16,975,000 17,005,000 41,168,000 -37,075,000 13,545,000 14,483,000 12,692,000 -31,363,000 2,073,000 28,388,000 18,032,000 -28,403,000 6,926,000 27,757,000 17,584,000 -18,077,000 12,430,000 26,331,000 14,250,000 -25,324,000 10,462,000 -3,317,000 2,860,000 -24,291,000  5,426,000 9,061,000 -8,372,000          
          billings in excess of services provided
        -3,252,000 -3,924,000 -949,000 -7,337,000 121,000 3,780,000 -3,425,000 -626,000 542,000 10,349,000 5,895,000 -1,079,000 -1,406,000 1,601,000 3,247,000 10,149,000 -5,724,000 9,386,000 -220,000 -5,726,000 -1,745,000 -3,121,000 6,011,000 32,000 4,253,000 1,792,000 -10,430,000 -5,287,000 5,792,000 6,819,000 2,018,000 -12,309,000 -413,000 20,104,000 -11,291,000 4,129,000 3,505,000 -8,799,000 2,281,000 2,598,000 4,699,000 -92,000 -74,000 -1,112,000 -4,092,000 -3,454,000 3,275,000 1,126,000 6,630,000 2,425,000 402,000 -7,545,000 1,760,000 5,990,000 5,258,000 -1,443,000 2,329,000 -8,580,000 -7,690,000 6,037,000 1,615,000 -1,959,000 -4,316,000 2,288,000 -2,144,000 5,453,000 -1,856,000 1,847,000 -2,526,000 9,629,000 2,190,000 -81,000 -830,000 -1,297,000 87,000 770,000 654,000 3,303,000 -629,000 -712,000 1,368,000 -1,627,000 -720,000 -445,000 -129,000 152,000 189,000 -1,530,000 -6,223,000 -2,442,000 1,986,000 1,073,000 -4,442,000  
          net cash from operating activities
        -310,023,000 359,756,000 201,893,000 55,693,000 -465,210,000 315,315,000 219,374,000 135,226,000 -274,818,000 382,986,000 106,675,000 -10,994,000 -254,206,000 229,233,000 128,292,000 35,047,000 -203,778,000 199,563,000 196,946,000 125,558,000 -166,584,000 186,092,000 111,563,000 152,976,000 -123,562,000 141,020,000 131,304,000 47,648,000 -102,086,000 144,400,000 120,857,000 34,615,000 -69,200,000 123,592,000 106,233,000 10,887,000 -93,087,000 121,913,000 70,942,000 73,732,000 -33,099,000 96,617,000 74,034,000 20,602,000 -51,333,000 114,922,000 97,583,000 33,691,000 -110,795,000 89,465,000 84,437,000 21,673,000 -2,304,000 106,564,000 70,912,000 533,000 -57,821,000 126,980,000 59,672,000 26,373,000 -39,197,000 99,188,000 73,911,000 49,218,000 -27,263,000 87,225,000 116,790,000 55,288,000 -8,534,000 91,168,000 51,720,000 67,074,000 -10,110,000 56,515,000 38,950,000 9,406,000 -26,918,000    -37,797,000 55,876,000 27,529,000 31,483,000 -15,509,000 28,211,000 29,729,000 20,698,000 -20,195,000 13,044,000 29,255,000 34,690,000 19,145,000 49,244,000 
          capital expenditures
        -10,618,000 -8,389,000 -14,914,000 -17,425,000 -17,803,000 -13,679,000 -7,029,000 -10,060,000 -4,640,000 -6,255,000 -14,197,000 -11,015,000 -18,012,000 -14,384,000 -13,298,000 -13,030,000 -12,607,000 -16,224,000 -24,745,000 -19,720,000 -7,976,000 -9,203,000 -11,764,000 -5,663,000 -8,236,000 -15,046,000 -6,365,000 -10,508,000 -10,153,000 -4,429,000 -11,621,000 -8,540,000 -7,680,000 -11,983,000 -6,894,000 -7,296,000 -5,831,000 -6,080,000 -10,872,000 -5,621,000 -6,362,000 -6,725,000 -7,141,000 -8,657,000 -8,876,000 -7,459,000 -10,019,000 -6,599,000 -15,179,000 -19,550,000 -8,864,000 -6,807,000 -7,323,000 -7,225,000 -6,806,000 -8,972,000 -4,756,000 -6,496,000 -11,890,000 -7,752,000 -4,953,000 -7,767,000 -3,201,000 -6,464,000 -5,168,000 -10,582,000 -6,288,000 -7,228,000 -4,459,000 -11,289,000 -6,542,000 -10,318,000 -7,525,000 -8,510,000 -5,659,000 -8,464,000 -13,789,000    -3,237,000 -5,750,000 -3,085,000 -4,967,000 -4,025,000 -5,245,000 -2,595,000 -1,301,000 -2,798,000 -2,624,000 -1,919,000 -3,545,000 -2,828,000 
          free cash flows
        -320,641,000 351,367,000 186,979,000 38,268,000 -483,013,000 301,636,000 212,345,000 125,166,000 -279,458,000 376,731,000 92,478,000 -22,009,000 -272,218,000 214,849,000 114,994,000 22,017,000 -216,385,000 183,339,000 172,201,000 105,838,000 -174,560,000 176,889,000 99,799,000 147,313,000 -131,798,000 125,974,000 124,939,000 37,140,000 -112,239,000 139,971,000 109,236,000 26,075,000 -76,880,000 111,609,000 99,339,000 3,591,000 -98,918,000 115,833,000 60,070,000 68,111,000 -39,461,000 89,892,000 66,893,000 11,945,000 -60,209,000 107,463,000 87,564,000 27,092,000 -125,974,000 69,915,000 75,573,000 14,866,000 -9,627,000 99,339,000 64,106,000 -8,439,000 -62,577,000 120,484,000 47,782,000 18,621,000 -44,150,000 91,421,000 70,710,000 42,754,000 -32,431,000 76,643,000 110,502,000 48,060,000 -12,993,000 79,879,000 45,178,000 56,756,000 -17,635,000 48,005,000 33,291,000 942,000 -40,707,000    -41,034,000 50,126,000 24,444,000 26,516,000 -19,534,000 22,966,000 27,134,000 19,397,000 -22,993,000 10,420,000 29,255,000 32,771,000 15,600,000 46,416,000 
          investing activities
                                                                                                      
          purchases of property and equipment and other
        -10,618,000 -8,389,000 -14,914,000 -17,425,000 -17,803,000 -13,679,000 -7,029,000 -10,060,000 -4,640,000 -6,255,000 -14,197,000 -11,015,000 -18,012,000 -14,384,000 -13,298,000 -13,030,000 -12,607,000 -16,224,000 -24,745,000 -19,720,000 -7,976,000                                                                          
          net cash from investing activities
        -10,618,000 -8,389,000 -14,914,000 -17,425,000 -17,803,000 -13,679,000 -7,029,000 -10,060,000 20,606,000 -6,255,000 -38,553,000 -11,015,000 -18,012,000 -14,384,000 -13,342,000 -13,030,000 -19,305,000 -16,819,000 -24,745,000 -29,553,000 -7,976,000 -9,744,000 -36,491,000 -5,657,000 -8,228,000 -14,844,000 -25,170,000 -10,511,000 -10,081,000 -4,439,000 38,714,000 -7,878,000 -7,653,000 -11,762,000 -15,821,000 -7,351,000 -5,704,000 -7,295,000 -10,894,000 -5,615,000 -6,328,000 -6,582,000 -7,110,000 -9,240,000 -8,805,000 -10,183,000 -10,017,000 -6,595,000 -30,800,000 -39,355,000 -9,115,000 -32,634,000 -21,987,000 -42,314,000 -12,907,000 -11,850,000 -23,335,000 -6,580,000 -23,070,000 -16,720,000 -47,278,000 -10,513,000 -40,632,000 -9,253,000 -10,688,000 1,653,000 -42,507,000 -19,006,000 -30,028,000 -37,480,000 -94,947,000 -115,553,000 -128,532,000 -15,208,000 -10,632,000 -9,791,000 -32,552,000 -214,073,000 -15,797,000 -13,142,000 -54,373,000 -7,200,000 -7,475,000 -31,547,000 -18,636,000 -5,142,000 -4,132,000 -1,911,000 -2,508,000 -235,600,000 6,695,000 -2,493,000 -343,000 -5,021,000 
          financing activities
                                                                                                      
          borrowings under revolving line of credit
        590,000,000 240,000,000 295,000,000 510,000,000 235,000,000 80,000,000 240,000,000 280,000,000 110,000,000 480,000,000 155,000,000 90,000,000 10,000,000 155,000,000 25,000,000 85,000,000 95,000,000 197,500,000 140,000,000 59,500,000 35,000,000 55,000,000        45,000,000  -20,000,000 78,000,000 37,000,000    7,000,000 -20,000,000       20,000,000        25,000,000 20,000,000         10,000,000 15,000,000                
          repayments under revolving line of credit
        -500,000,000 -385,000,000 -255,000,000 -200,000,000 -75,000,000 -140,000,000 -385,000,000 -75,000,000 -395,000,000 -220,000,000 -175,000,000 -45,000,000 -25,000,000 -140,000,000 -50,000,000 -160,000,000 -165,000,000 -27,500,000 -165,000,000 -69,500,000 -50,000,000 -5,000,000                                                                      
          proceeds from issuance of term loan
        300,000,000                                                                                              
          purchase and retirement of common stock
        -126,827,000 -87,792,000 -234,211,000 -354,037,000 -182,641,000     -20,982,000 -61,894,000 -20,432,000 -3,098,000 -46,133,000 -177,761,000 -76,154,000 -50,543,000 -49,135,000 -27,848,000 -11,056,000 -45,010,000 -21,883,000 -26,518,000 -15,000,000 -14,220,000 -12,809,000 -52,772,000 -65,595,000 -36,918,000 -18,586,000 -2,903,000     -4,367,000 -17,994,000 -20,011,000 -28,758,000 -30,019,000    -209,400,000 -14,496,000            -2,000   -8,043,000 -15,333,000 -14,962,000 -125,381,000 -7,707,000 -1,481,000 -4,975,000 -3,193,000 -1,161,000      
          share-based compensation tax withholdings
        -5,954,000 -250,000 -1,415,000 -5,304,000 -11,576,000 -2,428,000 -2,273,000                                                                                        
          deposits and other
        1,279,000 -151,000 1,927,000 -3,249,000 1,831,000 1,862,000 -917,000 -274,000 2,297,000 -1,508,000 1,865,000 -1,206,000 1,660,000 -3,509,000 2,205,000 3,032,000 1,855,000    2,721,000 -1,250,000 -537,000 1,228,000 3,870,000                                                                      
          net cash from financing activities
        258,498,000 -233,193,000 -193,089,000 -51,893,000 -32,301,000 -10,510,000 -63,190,000 -140,268,000 198,585,000 -287,583,000 -58,137,000 -24,710,000 15,767,000 -69,063,000 -19,750,000 -21,360,000 4,161,000 -26,696,000 -74,476,000 -76,918,000 116,416,000 -204,639,000 -85,363,000 -69,203,000 -848,000 -26,791,000 -29,368,000 -24,385,000 -22,767,000 -327,040,000 230,428,000 -54,831,000 33,924,000 -81,801,000 -74,303,000 12,831,000 2,339,000 -118,964,000 -15,199,000 3,672,000 5,181,000 -43,051,000 -200,580,000 2,343,000 5,326,000 4,820,000 -2,120,000 -9,412,000 13,042,000 6,232,000 -21,232,000 2,064,000 -30,193,000 -35,287,000 -98,821,000 -3,020,000 -1,118,000 16,644,000 -5,896,000 -23,410,000 -186,067,000 -34,169,000 173,184,000 3,336,000 1,501,000 -248,421,000 -9,453,000 11,803,000 5,793,000 2,079,000 8,723,000 4,560,000 4,889,000 259,112,000 4,845,000 -9,071,000 5,550,000 186,441,000 1,562,000 -4,666,000 -13,573,000 -10,550,000 72,100,000 19,395,000 12,213,000 -6,352,000 -19,718,000 -18,572,000 19,831,000 94,903,000 -15,025,000 4,799,000 46,789,000 -37,935,000 
          effect of exchange rate changes on cash and cash equivalents
        -4,672,000 950,000 -754,000 15,335,000 5,942,000 -16,977,000 10,761,000 -2,430,000 -3,635,000 12,926,000 -12,376,000 11,719,000 3,302,000 18,855,000 -23,883,000 -16,070,000 -4,420,000 -4,090,000 -12,073,000 4,367,000 -3,388,000 18,586,000 10,743,000 3,027,000 -13,672,000 11,518,000 -7,402,000 -2,887,000 2,106,000 -6,719,000 -688,000 -7,394,000 5,012,000 1,971,000 3,341,000 1,185,000 1,253,000 -4,680,000 -2,330,000 -3,575,000 -1,063,000 -2,198,000 -1,358,000 988,000 -3,573,000 -4,657,000 -1,080,000 -277,000 -275,000  1,282,000 748,000 -1,598,000  1,763,000 -2,120,000 289,000  -1,221,000 135,000 339,000  1,465,000 -925,000 -1,544,000                              
          net decrease in cash and cash equivalents
        -66,815,000   1,710,000 -509,372,000   -17,532,000 -59,262,000  -2,391,000 -35,000,000 -253,149,000   -15,413,000 -223,342,000   23,454,000 -61,532,000  452,000 81,143,000 -146,310,000   9,865,000 -132,828,000   -35,488,000 -37,917,000    -95,199,000    -35,309,000  -135,014,000 14,693,000 -58,385,000  84,366,000 17,407,000 -128,828,000  55,372,000 -8,149,000 -56,082,000  -39,053,000 -16,457,000 -81,985,000    -272,203,000    -37,994,000    -34,147,000  -36,397,000 -44,494,000 -133,395,000  31,989,000 -7,928,000 -53,740,000   -10,058,000 -105,743,000   19,331,000 -21,932,000          
          cash and cash equivalents, beginning of period
        265,091,000 660,493,000 303,222,000 491,688,000 494,485,000 294,953,000 369,373,000 312,069,000 189,961,000 216,158,000 149,760,000 283,680,000 205,833,000 156,785,000 264,423,000  384,570,000 118,872,000 191,842,000 360,463,000  91,923,000  153,383,000  25,704,000  5,765,000      
          cash and cash equivalents, end of period
        198,276,000 119,124,000 -6,864,000 1,710,000 151,121,000 274,149,000 159,916,000 -17,532,000 243,960,000 102,074,000 -2,391,000 -35,000,000 238,539,000 164,641,000 71,317,000 -15,413,000 271,143,000 151,958,000 85,652,000 23,454,000 233,421,000 -9,705,000 452,000 81,143,000 223,063,000 110,903,000 69,364,000 9,865,000 179,241,000 -193,798,000 389,311,000 -35,488,000 152,044,000 32,000,000 19,450,000 17,552,000 120,959,000 -9,026,000 42,519,000 68,214,000 114,451,000 44,786,000 -135,014,000 14,693,000 225,295,000 104,902,000 84,366,000 17,407,000 77,005,000 57,907,000 55,372,000 -8,149,000 100,703,000 29,857,000 -39,053,000 -16,457,000 182,438,000  29,485,000 -13,622,000 112,367,000 53,388,000 207,928,000 42,376,000 80,878,000 -159,097,000 64,877,000 55,397,000 157,695,000 45,665,000 -36,397,000 -44,494,000 227,068,000  31,989,000 -7,928,000 38,183,000  -15,091,000 -10,058,000 47,640,000  92,154,000 19,331,000 3,772,000  5,879,000 215,000 2,893,000      
          supplemental cash flow disclosures
                                                                                                      
          cash paid for interest
        4,772,000 10,327,000 7,463,000 1,415,000 461,000 473,000 1,425,000 3,255,000 765,000 4,230,000 6,016,000 519,000 3,625,000 -176,000 3,733,000 551,000 3,728,000 346,000 3,902,000 1,000,000 3,854,000 637,000 3,447,000 532,000 3,136,000 342,000 3,797,000 17,000 3,450,000 8,259,000 408,000 11,933,000 1,087,000 10,861,000 -2,479,000 14,141,000 762,000 10,564,000 1,348,000 9,987,000 1,255,000 9,934,000 13,984,000 22,821,000 226,000 22,846,000 1,782,000 23,150,000 391,000 23,027,000 2,226,000 22,582,000 321,000 25,739,000 5,976,000 22,503,000 2,864,000 18,930,000 6,014,000 22,696,000 3,015,000 937,000 15,360,000 16,144,000 3,000,000 8,049,000 11,503,000 16,165,000 3,024,000 16,387,000                         
          cash paid for income taxes and tax credits, net of refunds
        10,059,000 15,957,000 22,802,000 65,532,000 40,066,000 32,175,000 9,723,000 48,888,000 25,943,000                                                                                      
          non-cash investing and financing activities:
                                                                                                      
          issuance of stock units under incentive compensation plans
        3,587,000 -2,300,000 4,369,000 2,805,000 2,274,000 1,664,000 2,603,000 2,314,000 67,000 1,346,000 1,059,000 1,547,000 1,842,000 2,124,000 42,000 1,632,000 180,000 2,825,000 3,079,000 4,241,000 6,531,000 5,308,000 55,000 3,441,000                      
          excise tax on purchase and retirement of common stock
        1,375,000 872,000 2,251,000 3,304,000 1,526,000                                                                                          
          non-cash additions to property and equipment
        1,201,000 2,340,000 -905,000 -1,819,000 4,843,000     -1,022,000 1,255,000 504,000 213,000 -698,000 1,275,000 -802,000 4,497,000 2,083,000 285,000                                                                            
          purchase and maturity of short-term investment
                                                                                                      
          repayment of convertible notes
                                                                                                     
          proceeds on stock option exercises
         610,000 697,000 85,000 273,000                                                                                        
          net increase in cash and cash equivalents
         119,124,000    274,149,000        164,641,000    151,958,000        110,903,000    -193,798,000    32,000,000 19,450,000   -9,026,000 42,519,000                   136,193,000 29,485,000   53,388,000 207,928,000   -159,097,000 64,877,000           69,432,000    38,126,000    16,717,000 5,879,000 215,000 -2,872,000 -127,653,000 20,925,000 36,996,000 65,591,000  
          maturity of short-term investment
              25,246,000                                                                                      
          non-cash financing activities:
                                                                                                      
          acquisition-related contingent consideration
             246,000 132,000 -1,817,000 660,000 -445,000 720,000 2,259,000 1,284,000 1,309,000 730,000 1,112,000 -979,000 690,000 116,000 -2,419,000 1,289,000 941,000 3,532,000 614,000 506,000 1,655,000 531,000 93,000 93,000 124,000 123,000 -164,000 396,000 744,000 375,000 777,000 395,000 623,000 201,000 206,000 1,134,000 -55,000 159,000 -1,538,000 234,000 -85,000 257,000 -5,000 -1,843,000 -4,778,000 630,000 -7,452,000 731,000 -483,000 403,000 -3,541,000 557,000                                      
          amortization of debt issuance costs and other
             372,000 323,000 151,000 236,000  426,000 650,000 646,000                                                                                  
          notes receivable
             -54,303,000 -392,000 -9,260,000 -35,937,000 -319,000 -61,000 -15,688,000 -6,851,000 -1,241,000 2,823,000 -3,330,000 1,345,000 8,253,000 -4,529,000 7,022,000 1,899,000 4,683,000 -2,647,000 -1,058,000 7,051,000 7,924,000 -5,822,000 -1,310,000 9,653,000 6,328,000 -1,555,000 1,592,000 2,622,000 6,479,000 6,208,000 -4,912,000 7,153,000 6,819,000 966,000 -8,493,000 3,853,000 3,440,000 6,292,000 -5,623,000 -1,003,000 13,000 4,293,000 3,529,000 -26,088,000 2,100,000 1,469,000 -10,886,000 -227,000 -4,998,000 3,102,000 -9,353,000 -14,481,000 1,133,000 367,000 8,336,000 -13,617,000 -2,815,000 -3,896,000 -2,818,000 -14,971,000 1,274,000 -127,000 -15,675,000 -3,836,000 -3,055,000 836,000 -8,813,000 1,655,000 1,126,000 2,496,000 -1,183,000 -24,476,000 634,000 -7,142,000 -16,328,000 -10,515,000              
          payments for acquisition of businesses, net of cash received
                     -44,000 -6,698,000 -595,000                -1,195,000   1,000   -7,783,000 -73,000 -15,611,000 -14,732,000 -254,000 -25,836,000 -14,676,000 -36,440,000 -4,903,000 -2,955,000 -18,595,000   -9,046,000 -41,842,000                                  
          payments of debt issuance costs
                                                                                                      
          business acquisition liabilities not yet paid
                     223,000 5,370,000     2,749,000    -4,258,000                                                                     
          depreciation and amortization
              11,003,000 10,749,000 10,424,000 11,153,000 10,379,000 10,104,000 9,443,000 8,853,000 8,950,000 9,188,000 8,907,000 8,638,000 8,866,000 8,604,000 8,161,000 9,006,000 7,948,000 7,884,000 7,823,000 7,769,000 8,080,000 7,238,000 7,066,000 6,988,000 8,295,000 8,488,000 7,765,000 7,409,000 7,470,000 7,727,000 8,571,000 13,341,000 9,310,000 8,078,000 7,971,000 8,823,000 7,458,000 7,303,000 7,808,000 8,808,000 8,180,000 9,553,000 8,585,000 8,420,000 8,196,000 8,016,000 8,006,000 7,444,000 8,026,000 10,953,000 7,496,000     7,196,000 8,777,000 7,658,000 7,703,000                              
          purchase of short-term investment
                                                                                                     
          share-based tax withholdings net of option exercises
                -8,712,000                                                                                      
          amortization of debt discount and issuance costs and other
                     636,000 520,000 541,000 527,000 3,150,000 2,866,000 2,870,000 2,815,000                                                                          
          share-based compensation tax withholdings and other
                 -1,075,000 -3,248,000 -1,691,000 -9,064,000 333,000 -836,000 -7,911,000 -6,916,000 -969,000 -802,000 -677,000 -6,798,000                                                                          
          payments for business acquisition liabilities
                 -991,000 -1,813,000 -847,000 -687,000 -1,481,000 -2,680,000 -4,122,000 -3,374,000   -1,000,000 -1,282,000                                                                  
          cash paid for income taxes, net of refunds
                 12,573,000 9,639,000 45,045,000 12,331,000 25,660,000 8,913,000 28,969,000 13,471,000 16,260,000 12,498,000 11,459,000 7,283,000 21,809,000 32,486,000 12,562,000 16,588,000 21,056,000 13,065,000 8,176,000 8,644,000 25,244,000 4,187,000 14,449,000 1,688,000 -3,813,000 3,406,000 1,090,000 4,246,000 4,361,000 11,416,000 3,669,000 824,000 4,268,000 7,265,000 2,987,000 6,134,000 2,746,000 8,837,000 4,709,000 11,034,000 11,517,000 5,111,000 11,476,000 6,970,000 14,950,000 738,000 5,008,000 26,222,000 5,299,000 6,427,000 10,021,000 16,995,000 5,113,000 -272,000 6,520,000 21,876,000 22,209,000 2,015,000 19,263,000 10,635,000 26,770,000                         
          amortization and impairment of intangible assets
                     2,323,000 2,315,000 2,737,000 2,268,000 2,308,000 2,860,000 2,854,000 2,801,000                                                                          
          deposits
                          1,326,000        -479,000 11,000 1,003,000  -275,000 1,171,000 1,431,000 -760,000 323,000 193,000 3,069,000 1,200,000 249,000 -33,000 2,590,000 821,000 -17,000 1,043,000 1,380,000 115,000 1,376,000                                                
          purchase and retirement of common stock not yet paid
                              6,711,000                                                                        
          amortization of debt discount and issuance costs
                             2,186,000 3,041,000 3,009,000 2,978,000 2,949,000 2,918,000 2,888,000 2,860,000 2,852,000                                                                 
          loss on early extinguishment of debt
                                                                                                     
          gain on sale of business
                                                                                                     
          purchases of property and equipment
                             -9,203,000 -11,764,000 -5,663,000 -8,236,000 -15,046,000 -6,365,000 -10,508,000 -10,153,000 -4,429,000 -11,621,000 -8,540,000 -7,680,000 -11,983,000 -6,894,000 -7,296,000 -5,831,000 -6,080,000 -10,872,000 -5,621,000 -6,362,000 -6,725,000 -7,141,000 -8,657,000 -8,876,000 -7,459,000 -10,019,000 -6,599,000 -15,179,000 -19,550,000 -8,864,000 -6,807,000 -7,323,000 -7,225,000 -6,806,000 -8,972,000 -4,756,000 -6,496,000 -11,890,000 -7,752,000 -4,953,000 -7,767,000 -3,201,000 -6,464,000 -5,168,000 -10,582,000 -6,288,000 -7,228,000 -4,459,000 -11,289,000 -6,542,000 -10,318,000 -7,525,000 -8,510,000 -5,659,000 -8,464,000 -13,789,000 -16,556,000 -5,144,000 -5,422,000 -3,237,000 -5,750,000 -3,085,000 -4,967,000 -4,025,000 -5,245,000 -2,595,000 -1,301,000 -2,798,000 -2,624,000     
          proceeds from sale of business
                                                                                                     
          proceeds from issuance of convertible notes
                                                                                                     
          payments of long-term debt
                                                                            -1,233,000 -272,000 -904,000 -6,335,000 -7,796,000    -25,461,000    -142,500,000 -7,500,000 -5,000,000 -5,000,000 -3,750,000 -3,750,000 -3,750,000 -8,750,000 -15,000,000 -5,000,000 -56,954,000  
          payments of debt issue and debt prepayment costs
                                                                                                      
          net issuance of common stock under equity compensation plans
                             -628,000 1,328,000 -940,000 -5,583,000 -5,000 2,167,000 1,614,000 -605,000 7,234,000 12,501,000 14,525,000 4,215,000 1,850,000 -1,854,000 312,000 -812,000 3,314,000 9,041,000 10,724,000 -1,371,000 2,735,000 5,269,000 4,631,000 4,031,000 4,801,000 2,663,000 -202,000 -2,490,000 23,184,000 4,963,000 2,580,000 -1,335,000 1,075,000 1,363,000 -193,000 -647,000 10,312,000 112,000 1,684,000 -999,000 1,592,000    28,000    -1,914,000 10,470,000 3,424,000 8,582,000                      
          amortization and impairment of other intangible assets
                              2,795,000 2,314,000 2,331,000 2,314,000 2,125,000 1,852,000 1,861,000 1,865,000 1,975,000 2,052,000 2,270,000 2,766,000 2,882,000 2,422,000 2,493,000 2,265,000 2,845,000 2,590,000 2,606,000                                                      
          benefit from doubtful accounts
                                                                                                1,475,000      
          provision for doubtful accounts
                               7,752,000 3,872,000 6,050,000 7,292,000 2,476,000 3,784,000 5,921,000 3,241,000 3,034,000 5,676,000 4,876,000 4,539,000 2,420,000 3,551,000 3,009,000 1,559,000 3,907,000 437,000 5,200,000 3,793,000 3,573,000 2,998,000 6,356,000 3,225,000 4,229,000 4,442,000 2,931,000 2,926,000 3,384,000 4,094,000 4,792,000 2,360,000 2,458,000 4,569,000   3,195,000 2,573,000  2,561,000 1,608,000 3,010,000    6,788,000  4,543,000 4,018,000 4,546,000 4,652,000 3,321,000 1,605,000 2,199,000 2,513,000 2,413,000   2,537,000 2,153,000   1,672,000 2,836,000   -104,000 1,414,000 1,464,000 2,335,000 1,885,000 
          payments of debt issue costs
                                                                                                      
          non-cash share-based compensation
                                   3,814,000 6,393,000 3,358,000 3,656,000 3,887,000 4,676,000 3,142,000 2,929,000 2,678,000 7,281,000 3,539,000 3,714,000 3,509,000 6,158,000 3,595,000 3,775,000 3,845,000 6,736,000 3,918,000 3,736,000 5,691,000 9,503,000 12,585,000 5,498,000 6,991,000 10,055,000 4,896,000 6,660,000 7,252,000 10,553,000 8,309,000 13,101,000 9,135,000 6,807,000 7,284,000 5,186,000 7,257,000 7,394,000 7,192,000 5,090,000 6,904,000 6,445,000 4,989,000 7,220,000 7,466,000 6,706,000 6,204,000 5,465,000 5,645,000 5,389,000 3,972,000                 
          borrowings (repayments) under revolving line of credit
                                     -75,000,000       -105,000,000                                                         
          payments for acquisition-related contingent consideration
                                     -527,000 -2,502,000                                                              
          acquisition-related contingent liability
                                                                                                      
          non-cash interest expense and other
                                       402,000 591,000                                                     1,996,000 -150,000 -36,000 139,000 270,000 619,000 344,000 640,000  
          non-cash interest expense
                                         495,000 497,000 496,000 496,000 496,000 497,000 495,000 497,000 492,000 686,000 672,000 671,000  672,000 673,000 675,000  675,000 679,000 670,000  618,000 1,954,000 1,933,000 2,117,000 2,132,000 2,097,000 2,093,000 2,538,000 6,533,000 1,799,000 1,800,000 1,765,000 1,751,000 1,844,000 1,854,000 761,000 760,000 754,000 755,000 753,000 754,000 741,000 891,000 1,033,000 597,000 596,000 604,000 474,000             
          acquisition related contingent liability
                                                                                                      
          goodwill impairment charge
                                                                                                     
          issuance of common stock to acquire businesses
                                                                       459,000    6,619,000 675,000 33,890,000 13,040,000                      
          unsettled repurchase and retirement of common stock
                                                                                                      
          amortization of other intangible assets
                                                  2,900,000 3,007,000 3,012,000  3,398,000 3,452,000 4,616,000  5,776,000 5,953,000 5,564,000  5,762,000 5,669,000 5,517,000  5,843,000 5,498,000 5,454,000  6,286,000 5,852,000 6,091,000 6,332,000 6,171,000 6,149,000 6,050,000 5,805,000 5,664,000 4,457,000 2,898,000 2,837,000 2,293,000 2,748,000 2,737,000 2,865,000 2,551,000 2,805,000 2,954,000 2,225,000 1,952,000 1,608,000 749,000 2,616,000 1,244,000 1,255,000 1,721,000  775,000 775,000 775,000  
          payments of debt financing fees
                                                                     -211,000                     -12,348,000            
          payment of debt financing fees
                                                                                                      
          non-cash interest expense and loss on extinguishment of debt
                                                                                                      
          payments of long-term debt and capital lease obligations
                                                             -221,372,000 -154,513,000 -1,818,000 -156,000 -27,000 -6,030,000 -65,000 -872,000 -19,295,000 -189,987,000 62,000 -527,000 -302,000 -12,908,000 -229,000 -322,000                          
          issuance of debt securities
                                                                     -1,202,000                                
          purchases of investments
                                                                                                      
          payments of revolving line of credit
                                                                   -20,000,000         -10,000,000 -15,000,000                
          cash received for settlement of interest rate swaps
                                                                                                    
          effect of exchange rate changes and fair value adjustments on cash and cash equivalents
                                                                         446,000 47,000 7,312,000 -1,378,000 -10,102,000 -1,893,000 -575,000 358,000                      
          excess tax benefits from share-based compensation
                                                            -124,000 -417,000 -27,000 -16,000 -55,000 -1,399,000 -74,000 -81,000 -43,000 557,000 -136,000 129,000 -754,000 -1,546,000 -886,000 -2,576,000 -185,000 -5,167,000 -971,000 -2,040,000 -2,642,000 -13,634,000 -1,498,000 -2,175,000 -679,000 -1,208,000                 
          proceeds from sale or maturity of short-term investments
                                                                                                      
          excess tax benefit from share-based compensation
                                                                                                      
          issuance of notes payable to acquire businesses
                                                                                                     
          purchases of short-term investments
                                                                                                     
          cash and cash equivalents, beginning of year
                                                                                                      
          cash and cash equivalents, end of year
                                                                                                      
          depreciation, amortization and accretion
                                                                  8,363,000 7,940,000 7,743,000                                  
          payments for acquisition of businesses, including contingent payments, net of cash received
                                                                      -37,439,000                                
          proceeds from sale or maturity of short-term investment
                                                                                                      
          changes in operating assets and liabilties, net of effects from acquisitions:
                                                                                                      
          payments of short-term borrowings of acquired subsidiary
                                                                                                     
          proceeds from maturity of short-term investment
                                                                      15,000,000                              
          excess of tax benefits from share-based compensation
                                                                      136,000 -129,000 754,000  886,000 2,576,000 185,000                          
          issuance of common stock under equity compensation plans
                                                                       3,403,000 832,000   7,168,000 5,930,000     21,868,000 3,487,000 6,868,000 4,882,000 3,746,000 2,165,000 2,729,000 1,577,000 4,535,000 2,381,000 144,000 2,491,000 232,000 165,000        
          issuance of notes payable as contingent consideration
                                                                       4,772,000 -523,000 11,000 12,778,000 506,000                      
          payments for acquisition of businesses, including contingent payments and acquisition costs, net of cash received
                                                                        -17,544,000 -8,558,000 -498,000 -11,912,000 -25,742,000 -29,903,000 -90,455,000 -131,547,000 -93,636,000 -7,079,000 -4,688,000 -1,473,000 -19,003,000 -197,576,000 -19,555,000 1,274,000 -51,475,000 -1,210,000 -4,321,000            
          proceeds from sale of short-term investments
                                                                                                      
          issuance of common stock, net of offering costs
                                                                                                     
          depreciation
                                                                          7,414,000 7,077,000 7,032,000 6,938,000 6,813,000 6,260,000 6,026,000                      
          non-cash loss on subleased facilities
                                                                                                      
          impairment of other intangible assets
                                                                                                     
          accrued special charges
                                                                             7,000 -1,161,000 -1,060,000 -1,220,000 -627,000    -4,302,000                 
          borrowings under long-term credit facilities
                                                                                                     
          payments of debt financing fees and others
                                                                                                      
          issuance of notes payable to acquire business
                                                                                                      
          non cash investing and finance activities:
                                                                                                      
          non cash investing and financing activities:
                                                                                                      
          income tax benefit from stock option exercises and other
                                                                                                      
          loss on early extinguishment of term loans
                                                                                                     
          proceeds from note receivable due from purchasers of former subsidiary
                                                                                                    
          change in other assets
                                                                                     59,000 -98,000 6,000 339,000 -240,000 -69,000 -75,000 10,000 109,000 -1,213,000 -547,000 1,150,000 381,000 -781,000 -574,000 1,460,000 -1,531,000 
          effect of exchange rate changes and fair value adjustments on cash equivalents
                                                                                                      
          depreciation and other amortization
                                                                                  5,360,000 4,426,000 3,958,000 3,803,000 3,220,000 3,125,000 3,049,000 3,052,000 2,996,000 2,711,000 2,601,000 2,466,000 2,296,000 2,251,000 2,100,000 2,321,000 1,826,000 1,301,000 1,555,000 1,320,000 
          effect of exchange rate changes on cash
                                                                                  -1,174,000 1,528,000 180,000                  
          accrued special termination charges
                                                                                   -2,708,000 -3,235,000                  
          cash placed in escrow to acquire business
                                                                                                      
          loss on subleased facilities
                                                                                                      
          income taxes payable
                                                                                      -2,938,000 -5,307,000 3,039,000 4,248,000 1,420,000 88,000 2,753,000 2,797,000 5,320,000 -323,000 -156,000      
          net cash from used in operating activities
                                                                                      -856,000                
          non-cash stock-based compensation
                                                                                       2,958,000 3,713,000 582,000 468,000 455,000 451,000 426,000 269,000 351,000 278,000 193,000     
          excess tax benefits from stock-based compensation
                                                                                       -673,000 -132,000              
          borrowings under long-term credit facility
                                                                                                    
          (recoveries of) provision for doubtful accounts
                                                                                        2,816,000              
          borrowings under revolving credit facility
                                                                                            25,000,000 4,000,000 11,500,000        
          payments of revolving credit facility
                                                                                            -2,500,000 -4,000,000 -22,500,000        
          loss from sale of discontinued operations
                                                                                                      
          accrued compensation expense
                                                                                             4,008,000 2,952,000 7,444,000 -7,836,000 2,345,000 -3,183,000 4,130,000 -5,752,000 7,001,000 
          cash received from sale of discontinued operations
                                                                                                 10,000,000 2,150,000  
          payments of capital lease obligations
                                                                                                      
          payments of debt financing fees and other
                                                                                                      
          income tax benefit from stock option exercises
                                                                                          1,070,000 43,000 75,000   667,000 1,215,000 426,000 121,000 1,923,000 9,129,000 3,664,000 
          other non-cash charges
                                                                                                      
          changes in assets and liabilities, net of effects from acquisitions:
                                                                                                      
          payments of capital lease obligations and other
                                                                                          -52,000 -63,000 -71,000  -158,000 -174,000 -186,000      
          non-cash interest expense and other non-cash charges
                                                                                           465,000 1,069,000          
          provision for (recoveries of) doubtful accounts
                                                                                            -580,000          
          changes in assets and liabilities, net of effects from acquisition:
                                                                                                      
          payments for acquisition of businesses, including contingent payments and acquisition costs
                                                                                            -20,146,000 -6,000 -324,000 -63,000 -860,000      
          proceeds from note receivable due from former owners of subsidiary
                                                                                            5,525,000          
          loss on abandoned facilities
                                                                                                      
          income tax benefit from stock option exercises and other stock-based compensation
                                                                                                      
          accounts receivable
                                                                                                      
          prepaid expenses and other current assets
                                                                                               -913,000 -2,884,000 -662,000 -1,449,000 -306,000 1,016,000 -466,000 
          income from sale of discontinued operations
                                                                                                      
          issuance of common stock under stock option plan
                                                                                                1,928,000      
          borrowings under long-term debt arrangements
                                                                                                23,000,000     
          amortization of goodwill and other intangible assets
                                                                                                     781,000 
          payments for acquisition of businesses, including acquisition costs
                                                                                                      
          contingent payments to former owners of subsidiaries
                                                                                                 -408,000 
          proceeds from landlord reimbursements and sales of property and equipment
                                                                                                      
          issuance of common stock under stock option and employee stock purchase plans
                                                                                                 2,529,000     
          non-cash loss from sale of discontinued operations
                                                                                                  -418,000    
          accounts payable and accrued expenses
                                                                                                  4,470,000 -1,010,000 672,000 2,136,000 
          income taxes, recoverable and payable
                                                                                                      
          other liabilities
                                                                                                      
          payments of financing fees and other
                                                                                                      
          change in other long-term liabilities
                                                                                                      
          non-cash stock compensation expense
                                                                                                   19,000 61,000  
          changes in operating assets and liabilities:
                                                                                                      
          income taxes recoverable/payable
                                                                                                   -1,134,000 -1,431,000 2,035,000 
          other current liabilities
                                                                                                   -261,000 81,000 45,000 
          purchase of property and equipment
                                                                                                   -1,919,000 -3,545,000 -2,828,000 
          acquisition of businesses, including acquisition costs
                                                                                                     -659,000 
          issuance of common stock under employee stock purchase plan and exercise of options
                                                                                                      
          proceeds from issuance of common stock, net of offering costs
                                                                                                   -5,000 99,228,000  
          changes in other long-term liabilities
                                                                                                      
          cash and cash equivalents at beginning of period
                                                                                                   9,906,000  
          cash and cash equivalents at end of period
                                                                                                   36,996,000 75,497,000  
          non-cash charge on sale of discontinued operations
                                                                                                    255,000  
          issuance of common stock and exercise of options
                                                                                                    4,596,000  
          payment of financing fees
                                                                                                    -81,000  
          extraordinary loss on early extinguishment of debt, before income taxes
                                                                                                      
          loss on disposal of discontinued operations, net of transaction costs
                                                                                                      
          issuance of common stock and exercise of warrants and options
                                                                                                      
          retirement of detachable stock warrants
                                                                                                      
          repayments of long-term debt arrangements
                                                                                                      
          payment of financing fees and other
                                                                                                     257,000 
          cash and cash equivalents at beginning of year
                                                                                                      
          cash and cash equivalents at end of year
                                                                                                      
          proceeds from landlord reimbursements and sale of property and equipment
                                                                                                      
          issuance of common stock and exercise of stock options
                                                                                                      
          net change in cash and cash equivalents