7Baggers
Quarterly
Annual
    Unit: USD2025-09-30 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 
      
                                                                                                 
      current assets
                                                                                                 
      cash and cash equivalents
    454,640,000 211,172,000 211,944,000 515,627,000 363,422,000 189,922,000 252,831,000 412,618,000 286,429,000 217,776,000 204,691,000 355,447,000 275,468,000 336,634,000 267,986,000 545,225,000 348,292,000 237,832,000 184,055,000 316,473,000 170,577,000 218,760,000 251,000,000 271,719,000 176,372,000 105,314,000 114,414,000 279,906,000 164,216,000 85,825,000 73,358,000 207,534,000 105,718,000 58,178,000 68,329,000 165,011,000 99,975,000 85,391,000 62,047,000 190,452,000 128,960,000 119,884,000 107,625,000 211,352,000 159,537,000 123,350,000 101,405,000 181,646,000 132,790,000 99,695,000 85,660,000 117,605,000 127,137,000 96,851,000 82,640,000 185,390,000 135,499,000 103,078,000 92,170,000 181,124,000 122,763,000 92,593,000 81,171,000 123,030,000 75,294,000 64,628,000 96,372,000 234,531,000 183,023,000 146,074,000 142,823,000 260,580,000 148,994,000 109,194,000 121,476,000 147,440,000 137,399,000 109,765,000 69,536,000 203,689,000 133,911,000 83,676,000 57,665,000 222,753,000 280,231,000 118,674,000 97,329,000 119,289,000 110,164,000 95,888,000 78,719,000 110,220,000 109,670,000 
      marketable securities
    73,442,000 188,355,000 112,715,000 47,896,000 46,005,000 106,963,000  65,538,000 47,560,000 21,240,000  266,169,000 180,507,000       19,999,000 67,028,000 69,055,000  61,153,000 42,566,000 38,698,000                                                                    
      accounts receivable
    204,085,000 210,577,000 182,136,000 134,331,000 186,252,000 187,113,000 172,953,000 133,128,000 189,442,000 197,899,000 160,092,000 126,437,000 190,893,000 214,268,000 186,220,000 133,750,000 181,167,000 168,504,000 128,419,000 88,123,000 119,102,000 124,845,000 131,371,000 109,163,000 150,872,000 146,982,000 135,156,000 114,977,000 158,107,000 153,948,000 133,681,000 98,700,000 129,640,000 124,410,000 111,366,000 93,191,000 114,726,000 107,108,000 95,543,000 76,058,000 106,674,000 97,270,000 83,004,000 68,353,000 94,130,000 105,011,000 85,438,000 71,666,000    69,107,000    69,081,000    83,360,000    64,224,000    68,233,000    82,240,000         73,360,000 72,961,000 66,636,000  56,422,000 64,789,000 56,675,000  50,403,000 51,829,000 51,051,000  57,134,000 
      prepaid expenses
    31,553,000 30,436,000 33,970,000 28,718,000 27,682,000 28,016,000 31,426,000 23,597,000 28,333,000 27,401,000 31,529,000 24,098,000 27,322,000 25,819,000 30,681,000 21,754,000 26,624,000 25,040,000 26,600,000 18,956,000 21,513,000 24,605,000 26,505,000 20,185,000 20,436,000 23,193,000 26,179,000 22,766,000 25,083,000 27,609,000 29,075,000 22,003,000 24,420,000 23,784,000 24,407,000 21,602,000 23,936,000 20,493,000 21,986,000 19,197,000 15,715,000 15,369,000 15,085,000 14,536,000 15,153,000 16,587,000 16,446,000 14,786,000 17,321,000 14,200,000 14,536,000 14,167,000 16,782,000 19,947,000 18,253,000 16,551,000 17,483,000 19,485,000 18,429,000 15,323,000 19,662,000 17,703,000 17,307,000 15,916,000 21,838,000 21,941,000 22,798,000 19,520,000 20,440,000 21,159,000 19,375,000 15,026,000 14,241,000 11,562,000 12,448,000 9,753,000 10,614,000 8,846,000 8,786,000 8,178,000 8,707,000 7,701,000 10,028,000 8,377,000 9,099,000 7,659,000 9,022,000 9,022,000 9,433,000 8,801,000 11,049,000 11,881,000 11,811,000 
      other current assets
    49,716,000 48,200,000 47,421,000 39,935,000 48,928,000 43,745,000 48,865,000 47,923,000 50,611,000 50,622,000 42,830,000 40,722,000 41,578,000 46,314,000 47,146,000 41,449,000 34,447,000 33,781,000 25,496,000 23,279,000 23,817,000 27,811,000 32,133,000 27,848,000 27,966,000 30,082,000 29,228,000 29,598,000 29,783,000 27,638,000 28,104,000 11,620,000 15,258,000 13,783,000 16,539,000 13,779,000 14,867,000 14,030,000 15,163,000 11,250,000 13,464,000 1,355,000 1,292,000 1,592,000 1,757,000 1,698,000 1,813,000 1,807,000 1,715,000 2,597,000 1,591,000 1,366,000 1,353,000 1,330,000 1,399,000 1,382,000 1,482,000 1,520,000 1,572,000 1,871,000 1,408,000 1,253,000 1,598,000 1,693,000 1,981,000 1,372,000 1,265,000 1,788,000 1,378,000 1,537,000 1,538,000 1,419,000                      
      income taxes recoverable
    10,200,000 10,868,000 6,964,000 6,470,000 10,795,000 7,660,000 5,957,000 10,410,000 10,799,000 8,397,000 7,190,000 10,946,000 4,348,000 4,990,000 3,569,000 3,210,000 4,386,000 5,447,000 5,205,000 5,856,000 13,014,000 4,918,000 4,400,000 4,414,000 5,818,000 6,171,000 4,952,000 3,620,000 5,763,000 5,197,000 4,428,000 3,933,000 5,655,000 5,467,000 4,454,000 4,847,000 5,451,000 4,812,000 8,377,000 4,809,000 5,669,000 5,541,000 5,645,000 5,288,000 7,098,000 7,187,000 6,544,000 5,772,000 6,803,000 7,212,000 7,272,000 5,651,000 5,990,000 9,485,000 19,302,000 19,866,000 11,968,000 14,062,000 15,932,000 11,912,000 13,249,000 16,624,000 18,174,000 15,649,000 16,360,000 21,420,000 22,168,000 7,719,000 1,404,000 4,039,000 1,965,000  11,170,000 2,188,000  621,000 5,777,000 6,815,000 2,890,000 3,536,000 4,032,000 4,540,000 223,000         6,125,000  
      total current assets
    823,636,000 699,608,000 595,150,000 772,977,000 683,084,000 563,419,000 512,032,000 693,214,000 613,174,000 523,335,000 446,332,000 823,819,000 720,116,000 628,025,000 535,602,000 745,388,000 594,916,000 470,604,000 369,775,000 472,686,000 415,051,000 469,994,000 445,409,000 494,482,000 424,030,000 350,440,000 309,929,000 450,867,000 382,952,000 300,217,000 268,646,000 343,790,000 280,691,000 225,622,000 225,095,000 298,430,000 258,955,000 231,834,000 203,116,000 308,963,000 290,089,000 270,697,000 243,183,000 330,329,000 294,386,000 269,771,000 226,508,000 290,774,000 267,711,000 232,422,000 205,127,000 226,282,000 259,259,000 229,315,000 217,273,000 310,325,000 287,496,000 270,364,000 241,219,000 312,466,000 288,835,000 243,948,000 223,445,000 241,454,000 219,135,000 193,725,000 221,705,000 354,270,000 334,504,000 310,920,000 298,021,000 402,698,000 381,307,000 333,903,000 286,099,000 333,678,000 310,631,000 267,336,000 251,859,000 281,779,000 291,656,000 244,393,000 267,676,000 290,170,000 354,982,000 193,017,000 166,039,000 178,349,000 195,498,000 184,882,000 169,885,000 198,476,000 217,942,000 
      non-current assets
                                                                                                 
      property and equipment
    55,513,000 54,687,000 51,938,000 51,685,000 53,508,000 48,434,000 40,452,000 35,752,000 34,034,000 33,330,000 32,517,000 30,207,000 29,317,000 27,294,000 27,162,000 27,085,000 20,939,000 22,682,000 22,373,000 23,492,000 26,740,000 28,577,000 28,450,000 28,650,000 29,356,000 30,788,000 32,292,000 33,871,000 35,491,000 36,752,000 38,464,000 39,514,000 41,945,000 41,491,000 40,057,000 35,099,000 36,137,000 36,464,000 35,260,000 36,498,000 35,597,000 34,579,000 34,348,000 30,417,000 30,070,000 32,109,000 33,780,000 34,961,000 35,721,000 37,571,000 39,921,000 42,362,000 42,586,000 43,890,000 44,773,000 44,781,000 47,491,000 42,338,000 37,884,000 34,406,000 34,231,000 31,937,000 29,416,000 26,092,000 25,917,000 27,565,000 28,375,000 28,172,000 19,753,000 19,615,000 20,153,000 18,730,000 18,123,000 17,184,000 18,888,000 18,648,000 18,413,000 18,244,000 19,310,000 21,104,000 21,993,000 24,063,000 25,518,000 27,677,000 28,348,000 29,982,000 32,330,000 33,466,000 34,684,000 35,415,000 36,443,000 38,230,000 41,585,000 
      operating lease right-of-use assets
    79,189,000 82,282,000 80,863,000 83,518,000 83,262,000 82,114,000 85,053,000 86,063,000 65,412,000 69,692,000 69,589,000 71,457,000 69,400,000 68,008,000 69,344,000 72,320,000 74,744,000 77,840,000 85,318,000 92,671,000 80,091,000 100,061,000 98,943,000 99,391,000 98,097,000 104,449,000 109,780,000                                                                   
      assets designated for retirement and pension plans
    11,310,000 11,361,000 10,424,000 9,976,000 11,203,000 10,779,000 10,854,000 11,105,000 11,195,000 11,552,000 11,479,000 11,332,000 10,961,000 11,721,000 12,372,000 12,715,000 13,672,000 14,001,000 13,853,000 14,425,000 14,608,000 14,001,000 13,756,000 13,978,000 14,289,000 14,909,000 14,707,000 15,035,000 16,554,000 16,668,000 17,569,000 17,130,000 17,627,000 17,050,000 15,896,000 15,698,000 17,438,000 17,208,000 17,667,000 16,857,000 17,949,000 17,901,000 17,235,000 19,426,000 20,850,000 22,618,000 22,724,000 22,685,000 23,104,000 22,297,000 22,038,000 22,763,000 22,698,000 22,351,000 23,557,000 22,883,000 23,668,000 25,649,000 25,069,000 23,647,000 24,204,000 21,735,000 24,037,000 25,502,000 26,150,000 25,073,000 23,748,000 24,973,000 25,125,000 28,106,000 28,187,000 26,067,000 37,468,000 35,802,000 35,579,000 31,380,000 29,807,000 29,984,000 28,550,000 26,727,000 27,055,000 26,922,000 31,517,000 32,468,000 28,840,000 27,703,000 28,614,000 28,751,000 26,489,000     
      investments
    72,537,000 69,160,000 64,434,000 58,290,000 59,089,000 55,927,000 54,835,000 47,287,000 43,154,000 44,357,000 42,547,000 34,354,000 31,728,000 33,756,000 38,006,000 36,051,000 34,738,000 35,365,000 33,545,000 31,369,000 27,836,000 26,085,000 23,516,000 25,409,000 23,807,000 23,647,000 22,781,000 19,442,000 21,013,000 21,621,000 22,884,000 21,319,000 20,432,000 19,717,000 19,763,000 17,346,000 17,268,000 16,782,000 16,388,000 14,145,000 14,185,000 15,248,000 15,281,000 13,989,000 14,276,000 14,739,000 14,136,000 13,848,000 13,182,000 12,751,000 12,685,000 11,902,000 11,617,000 11,208,000 11,236,000 9,868,000 9,524,000 10,189,000 9,925,000 11,021,000 10,321,000 10,070,000 10,566,000 10,417,000 10,275,000 9,694,000 12,635,000 12,594,000 9,479,000 9,831,000 10,028,000 7,832,000 5,156,000 5,021,000 4,871,000 3,470,000 3,173,000 3,039,000 3,418,000 1,839,000 2,365,000 2,370,000 2,500,000 4,089,000 3,331,000 4,342,000 2,897,000 2,842,000 2,576,000 2,250,000 2,657,000 3,007,000 2,782,000 
      other non-current assets
    26,262,000 26,395,000 26,113,000 25,500,000 25,507,000 26,875,000 16,680,000 17,071,000 19,528,000 22,082,000 31,666,000 25,788,000 26,379,000 26,296,000 23,448,000 23,377,000 25,852,000 26,706,000 27,617,000 24,439,000 23,682,000 24,700,000 25,181,000 20,434,000 20,317,000 21,725,000 23,784,000 22,276,000 19,546,000 19,491,000 16,865,000 8,999,000 10,601,000 11,913,000 14,257,000 9,322,000 11,233,000 12,400,000 13,516,000 11,115,000 12,169,000 10,844,000 7,706,000 6,601,000 6,649,000 7,184,000 6,675,000 5,693,000 5,715,000 5,401,000 5,766,000 5,301,000 5,944,000 6,893,000 6,794,000 6,480,000 7,920,000 9,486,000 9,602,000 8,593,000 8,260,000 7,818,000 6,395,000 6,843,000 5,621,000 8,650,000 8,793,000 7,203,000 7,701,000 6,002,000 7,855,000 6,296,000 9,842,000 10,091,000 8,882,000 6,220,000 6,465,000 5,982,000 5,142,000 5,216,000 6,163,000 6,519,000 4,018,000 3,406,000 3,552,000 3,603,000 3,864,000 4,226,000 4,145,000 6,800,000 7,824,000 9,478,000 9,479,000 
      goodwill
    142,464,000 142,635,000 139,447,000 137,861,000 185,400,000 183,150,000 200,089,000 202,252,000 198,241,000 198,639,000 197,711,000 138,361,000 138,069,000 138,511,000 139,017,000 138,524,000 137,047,000 137,401,000 91,452,000 91,643,000 91,264,000 91,271,000 123,422,000 126,831,000 128,286,000 122,070,000 122,548,000 122,092,000 122,445,000 122,838,000 123,284,000 118,892,000 125,737,000 124,671,000 152,558,000 151,844,000 155,313,000 136,066,000 136,691,000 131,122,000 120,150,000 121,020,000 121,316,000 122,176,000 122,657,000 123,970,000 123,576,000 123,274,000 120,696,000 119,948,000 120,638,000 120,940,000 91,270,000 90,892,000 91,113,000 90,696,000 90,421,000 115,979,000 112,591,000 109,888,000 109,777,000 106,773,000 109,433,000 109,010,000 109,182,000 107,373,000 104,658,000 101,234,000 98,197,000 92,223,000 85,616,000 84,217,000 77,244,000 76,258,000 76,554,000 75,961,000 47,717,000 47,782,000 46,956,000 46,655,000 48,609,000 48,609,000 48,747,000 48,818,000 48,622,000 48,594,000 48,610,000 48,627,000 50,648,000 50,587,000 50,399,000 50,271,000 51,769,000 
      other intangible assets
    8,949,000 10,539,000 11,304,000 12,483,000 15,110,000 16,411,000 18,305,000 20,842,000 22,509,000 26,903,000 25,263,000 6,333,000 6,998,000 7,720,000 8,462,000 9,169,000 10,223,000 10,903,000 961,000 1,129,000 1,218,000 1,361,000 1,554,000 1,935,000 4,428,000 1,730,000 1,975,000 2,216,000 2,535,000 2,919,000 3,943,000 2,158,000 7,236,000 8,027,000 19,009,000 20,690,000 20,154,000 18,438,000 20,398,000 18,687,000 17,327,000 18,595,000 19,632,000 20,939,000 22,432,000 24,007,000 25,301,000 26,637,000 27,606,000 28,839,000 30,308,000 32,020,000 2,021,000 2,194,000 2,383,000 2,556,000 2,725,000 6,065,000 6,310,000 6,480,000 6,801,000 6,797,000 8,138,000 8,636,000 9,251,000 9,394,000 13,333,000 13,543,000 14,450,000 15,621,000 15,059,000 15,363,000 15,923,000 17,306,000 17,673,000 17,884,000 5,831,000 6,071,000 6,088,000 6,239,000 6,235,000 6,453,000 6,672,000 6,890,000 7,109,000 7,328,000 7,546,000 7,771,000      
      deferred income taxes
    44,402,000 44,378,000 44,018,000 41,898,000 29,617,000 29,216,000 27,170,000 28,005,000 33,999,000 34,565,000 34,361,000 33,987,000 40,285,000 40,735,000 42,159,000 42,169,000 36,501,000 36,564,000 35,712,000 35,958,000 32,819,000 32,308,000 32,299,000 33,063,000 34,013,000 34,252,000 34,186,000 34,830,000 32,320,000 32,398,000 32,691,000 35,402,000 49,158,000 48,946,000 30,873,000 33,073,000 37,277,000 34,501,000 33,385,000 35,331,000 12,436,000 12,380,000 12,454,000 12,094,000 6,949,000 7,536,000 8,114,000 8,061,000 8,711,000 7,182,000 6,549,000 7,899,000 10,140,000 7,483,000 7,732,000 8,211,000 9,792,000 11,916,000 10,765,000 10,759,000 10,007,000 10,596,000 10,597,000 10,576,000 13,474,000 13,498,000 13,735,000 13,893,000 15,211,000 15,211,000 15,259,000 15,290,000 17,329,000 17,173,000 14,615,000 14,944,000 7,090,000 8,275,000 8,193,000 8,579,000 7,767,000 657,000 1,210,000 2,744,000 7,035,000    22,262,000 24,160,000 25,490,000 24,924,000 35,578,000 
      total non-current assets
    440,626,000 441,437,000 428,541,000 421,211,000 462,696,000 452,906,000 453,438,000 448,377,000 428,072,000 441,120,000 445,133,000 351,819,000 353,137,000 354,041,000 359,970,000 361,410,000 353,716,000 361,462,000 310,831,000 315,126,000 298,258,000 318,364,000 347,121,000 349,691,000 352,593,000 353,570,000 362,053,000 249,762,000 249,904,000 252,687,000 255,700,000 243,414,000 272,736,000 271,815,000 292,413,000 283,072,000 294,820,000 271,859,000 273,305,000 263,755,000 239,930,000 241,461,000 238,900,000 238,372,000 247,190,000 256,376,000 261,299,000 262,450,000 258,093,000 258,156,000 264,443,000 268,710,000 200,973,000 204,616,000 207,929,000 205,240,000 211,129,000 248,119,000 239,880,000 232,561,000 236,172,000 229,056,000 232,961,000 233,393,000 226,640,000 230,868,000 230,819,000 232,687,000 224,830,000 222,190,000 219,042,000  205,635,000 201,611,000 195,055,000  133,407,000 132,222,000 130,667,000  138,046,000 122,656,000 128,328,000  119,802,000 121,552,000 123,861,000  153,274,000 153,983,000 161,305,000  160,585,000 
      total assets
    1,264,262,000 1,141,045,000 1,023,691,000 1,194,188,000 1,145,780,000 1,016,325,000 965,470,000 1,141,591,000 1,041,246,000 964,455,000 891,465,000 1,175,638,000 1,073,253,000 982,066,000 895,572,000 1,106,798,000 948,632,000 832,066,000 680,606,000 787,812,000 713,309,000 788,358,000 792,530,000 844,173,000 776,623,000 704,010,000 671,982,000 700,629,000 632,856,000 552,904,000 524,346,000 587,204,000 553,427,000 497,437,000 517,508,000 581,502,000 553,775,000 503,693,000 476,421,000 572,718,000 530,019,000 512,158,000 482,083,000 568,701,000 541,576,000 526,147,000 487,807,000 553,224,000 525,804,000 490,578,000 469,570,000 494,992,000 460,232,000 433,931,000 425,202,000 515,565,000 498,625,000 518,483,000 481,099,000 545,027,000 525,007,000 473,004,000 456,406,000 474,847,000 445,775,000 424,593,000 452,524,000 586,957,000 559,334,000 533,110,000 517,063,000 616,884,000 586,942,000 535,514,000 481,154,000 519,770,000 444,038,000 399,558,000 382,526,000 410,922,000 429,702,000 367,049,000 396,004,000 421,284,000 474,784,000 314,569,000 289,900,000 304,032,000 348,772,000 338,865,000 331,190,000 363,064,000 378,527,000 
      current liabilities
                                                                                                 
      accounts payable
    20,281,000 25,834,000 23,103,000 25,088,000 21,517,000 19,515,000 19,776,000 20,837,000 18,966,000 15,477,000 16,975,000 14,613,000 17,248,000 16,428,000 16,350,000 20,374,000 18,119,000 17,789,000 10,149,000 8,799,000 11,050,000 10,852,000 11,088,000 8,633,000 9,093,000 8,107,000 9,229,000 9,166,000 8,979,000 8,723,000 9,574,000 9,824,000 8,294,000 8,170,000 9,880,000 7,952,000 9,644,000 5,765,000 7,779,000 6,150,000 4,056,000 5,702,000 7,702,000 5,493,000 5,532,000 5,485,000 7,947,000 7,791,000 5,622,000 7,454,000 7,581,000 8,657,000 6,009,000 8,031,000 9,583,000 9,157,000 10,438,000 11,818,000 11,601,000 8,408,000 10,178,000 8,916,000 6,750,000 5,948,000 6,410,000 5,645,000 7,202,000 11,977,000 7,638,000 8,251,000 9,807,000 8,699,000 7,089,000 8,998,000 6,745,000 7,217,000 5,293,000 8,865,000 7,435,000 6,019,000 5,499,000 6,024,000 8,140,000 10,986,000 6,688,000 7,791,000 7,076,000 7,196,000 6,665,000 6,666,000 7,585,000 8,887,000 8,082,000 
      accrued salaries and benefits
    366,127,000 251,668,000 171,155,000 353,531,000 277,498,000 190,225,000 133,735,000 322,744,000 264,625,000 193,858,000 140,056,000 451,161,000 375,430,000 286,683,000 179,663,000 409,026,000 305,186,000 198,120,000 112,830,000 217,908,000 161,002,000 113,351,000 97,875,000 234,306,000 180,207,000 124,923,000                                                                    
      deferred revenue
    56,110,000 58,859,000 55,957,000 51,085,000 47,106,000 44,679,000 47,377,000 45,732,000 41,502,000 44,102,000 43,345,000 43,057,000 43,547,000 48,764,000 55,364,000 51,404,000 45,284,000 41,915,000 38,847,000 38,050,000 37,268,000 38,122,000 41,433,000 41,267,000 40,434,000 37,424,000 39,157,000 40,673,000 42,870,000 40,184,000 39,598,000 31,272,000 35,339,000 32,301,000 32,482,000 28,367,000 31,713,000 33,638,000 34,658,000 29,724,000 33,739,000 33,345,000 30,164,000 30,452,000 31,848,000 36,023,000 32,711,000                                               
      operating lease liabilities
    18,182,000 18,225,000 17,652,000 17,653,000 18,985,000 18,044,000 20,351,000 21,498,000 20,994,000 21,221,000 20,584,000 19,554,000 17,854,000 18,400,000 18,963,000 19,332,000 18,992,000 27,572,000 27,947,000 28,984,000 30,569,000 30,117,000 29,818,000 30,955,000 30,663,000 31,895,000                                                                    
      other current liabilities
    67,450,000 65,898,000 64,869,000 21,369,000 23,394,000 25,693,000 24,449,000 21,823,000 33,171,000 36,017,000 33,318,000 56,016,000 59,301,000 60,383,000 53,982,000 24,554,000 22,723,000 19,042,000 20,114,000 23,311,000 26,691,000 18,144,000 19,534,000 26,253,000 29,327,000 26,186,000 28,578,000 33,219,000 35,127,000 37,318,000 39,499,000 40,346,000 21,503,000 21,761,000 23,200,000 24,133,000 25,103,000 25,976,000 34,596,000 31,239,000 28,697,000 27,923,000 32,979,000 26,835,000 24,797,000 24,476,000 25,924,000 46,401,000 48,634,000 47,720,000 45,927,000 40,390,000 31,913,000 34,647,000 38,421,000 39,362,000 33,208,000 41,013,000 34,605,000 34,064,000 37,322,000 35,738,000 41,339,000 37,812,000 35,986,000 34,175,000 44,808,000 51,723,000 44,991,000 43,856,000 45,246,000 43,238,000    37,401,000                  
      income taxes payable
    10,825,000 9,402,000 16,804,000 14,287,000 6,891,000 8,593,000 6,190,000 6,057,000 12,709,000 8,118,000 5,896,000 4,076,000 5,224,000 3,544,000 15,397,000 10,004,000 14,742,000 13,356,000 7,383,000 1,186,000 1,086,000 11,448,000 8,198,000 3,928,000 6,517,000 6,779,000 12,112,000 8,240,000 7,866,000 6,189,000 8,300,000 6,924,000 5,256,000 7,064,000 4,402,000 4,617,000 3,897,000 2,678,000 1,135,000 3,442,000 4,388,000 3,376,000 2,535,000 6,684,000 4,655,000 5,648,000 1,501,000 5,401,000 7,015,000 3,956,000 1,468,000 709,000 6,120,000 2,720,000 4,147,000 4,868,000 5,368,000 2,015,000 2,452,000 3,208,000 2,040,000 1,975,000 2,110,000 3,070,000        995,000   4,633,000         7,463,000 13,035,000 3,779,000 1,172,000 4,349,000 3,350,000 2,158,000 1,832,000  1,202,000 
      total current liabilities
    538,975,000 429,886,000 349,540,000 483,013,000 395,391,000 306,749,000 251,878,000 438,691,000 391,967,000 318,793,000 260,174,000 588,477,000 518,604,000 434,202,000 339,719,000 534,694,000 425,046,000 317,794,000 217,270,000 318,238,000 267,666,000 222,034,000 207,946,000 345,342,000 296,241,000 235,314,000 216,619,000 318,951,000 272,772,000 213,082,000 180,385,000 265,792,000 198,062,000 157,369,000 142,040,000 220,592,000 190,459,000 155,711,000 138,631,000 229,430,000 190,903,000 159,445,000 140,311,000 205,898,000 177,635,000 158,504,000 125,087,000 175,787,000 155,813,000 128,061,000 105,162,000 152,396,000 130,346,000 110,404,000 100,511,000 185,090,000 166,750,000 143,961,000 120,319,000 172,456,000 167,076,000 129,235,000 109,603,000 113,793,000 108,242,000 100,802,000 124,522,000 227,395,000 195,829,000 168,611,000 147,533,000 253,699,000 217,120,000 166,604,000 142,586,000 202,592,000 149,084,000 121,328,000 92,509,000 121,815,000 140,395,000 120,250,000 110,021,000 139,972,000 208,813,000 113,953,000 97,157,000 113,534,000 105,450,000 99,207,000 92,077,000 118,971,000 122,907,000 
      non-current liabilities
                                                                                                 
      retirement and pension plans
    88,193,000 84,999,000 79,118,000 72,138,000 75,048,000 70,855,000 69,572,000 62,100,000 57,351,000 58,951,000 56,882,000 48,456,000 48,730,000 51,877,000 57,076,000 55,593,000 55,804,000 56,919,000 54,826,000 53,496,000 49,389,000 46,847,000 43,851,000 46,032,000 43,269,000 43,922,000 42,744,000 39,865,000 43,536,000 44,272,000 46,999,000 44,802,000 44,891,000 43,351,000 41,766,000 39,039,000 39,921,000 39,059,000 39,296,000 35,949,000 38,186,000 39,156,000 38,294,000 39,892,000 37,044,000 39,511,000 39,297,000 38,735,000 39,009,000 37,604,000 37,308,000 37,247,000 33,440,000 32,563,000 33,772,000 31,747,000 31,393,000 34,147,000 33,218,000 30,907,000 30,286,000 27,464,000 29,418,000 31,687,000 30,113,000 28,148,000 26,337,000 27,503,000 29,578,000 33,271,000 33,199,000 28,831,000 43,031,000 40,833,000 40,138,000 34,332,000 35,442,000 35,398,000 33,629,000 31,446,000 32,055,000 31,881,000 36,699,000 37,941,000 33,113,000 31,616,000 31,875,000 32,232,000 29,584,000 28,853,000 26,342,000 25,234,000 23,226,000 
      other non-current liabilities
    4,380,000 4,527,000 4,318,000 42,905,000 46,158,000 42,562,000 41,152,000 41,808,000 40,985,000 42,005,000 36,778,000 5,293,000 4,250,000 4,797,000 14,338,000 41,087,000 28,567,000 28,254,000 4,103,000 4,735,000 4,625,000 4,573,000 4,551,000 4,634,000 10,508,000 4,317,000 4,171,000 17,423,000 21,769,000 21,959,000 23,522,000 23,597,000 27,373,000 26,585,000 28,381,000 28,288,000 27,267,000 21,851,000 20,740,000 52,537,000 46,835,000 43,794,000 36,130,000 54,747,000 53,341,000 52,037,000 49,636,000 61,293,000 52,818,000 47,884,000 48,152,000 56,943,000 42,581,000 40,177,000 39,913,000 47,396,000 43,749,000 41,455,000 38,791,000 47,015,000 40,057,000 37,282,000 33,802,000 38,476,000 26,352,000 25,831,000 23,526,000 25,755,000 27,775,000 24,276,000 21,629,000 17,819,000 8,211,000 7,710,000 7,776,000 9,755,000 8,231,000 8,169,000 7,896,000 7,879,000 6,481,000 5,386,000 5,601,000 5,613,000 5,694,000 4,751,000 4,767,000 4,729,000 1,460,000 354,000 293,000 323,000 341,000 
      total non-current liabilities
    216,067,000 218,668,000 209,101,000 258,358,000 267,104,000 248,644,000 244,807,000 240,622,000 210,131,000 217,345,000 210,179,000 176,515,000 170,118,000 179,390,000 205,088,000 236,084,000 200,330,000 214,719,000 184,766,000 201,972,000 184,577,000 280,121,000 272,819,000 189,716,000 183,747,000 180,247,000 181,944,000 114,522,000 106,251,000 101,956,000 113,472,000 108,707,000 104,394,000 96,555,000 116,951,000 102,320,000 97,551,000 87,603,000 82,927,000 88,486,000 85,021,000 103,450,000 96,424,000 118,139,000 115,385,000 118,048,000 116,933,000 129,564,000 122,964,000 118,120,000 119,595,000 94,249,000 76,115,000 72,838,000 73,787,000 79,180,000 75,361,000 75,711,000 72,108,000 78,029,000 70,343,000 64,746,000 63,220,000 70,202,000 56,465,000 53,979,000 49,863,000 53,258,000 61,896,000 62,986,000 60,909,000 53,385,000 58,635,000 56,443,000 56,572,000 53,473,000 53,960,000 54,700,000 53,197,000 51,622,000 51,036,000 51,008,000 62,934,000 65,186,000 60,907,000 60,098,000 62,071,000 64,685,000 47,397,000 48,660,000 49,417,000 44,382,000 38,407,000 
      total liabilities
    755,042,000 648,554,000 558,641,000 741,371,000 662,495,000 555,393,000 496,685,000 679,313,000 602,098,000 536,138,000 470,353,000 764,992,000 688,722,000 613,592,000 544,807,000 770,778,000 625,376,000 532,513,000 402,036,000 520,210,000 452,243,000 502,155,000 480,765,000 535,058,000 479,988,000 415,561,000 398,563,000 433,473,000 379,023,000 315,038,000 293,857,000 374,499,000 302,456,000 253,924,000 258,991,000 322,912,000 288,010,000 243,314,000 221,558,000 317,916,000 275,924,000 262,895,000 236,735,000 324,037,000 293,020,000 276,552,000 242,020,000 305,351,000 278,777,000 246,181,000 224,757,000 246,645,000 206,461,000 183,242,000 174,298,000 264,270,000 242,111,000 219,672,000 192,427,000 250,485,000 237,419,000 193,981,000 172,823,000 183,995,000 164,707,000 154,781,000 174,385,000 280,653,000 257,725,000 231,597,000 208,442,000 307,084,000 275,755,000 223,047,000 199,158,000 256,065,000 203,044,000 176,028,000 145,706,000 173,437,000 191,431,000 171,258,000 172,955,000 205,158,000 269,720,000 174,051,000 159,228,000 178,219,000 152,847,000 147,867,000 141,494,000 163,353,000 161,314,000 
      commitments and contingencies
                                                                                                 
      stockholders’ equity
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2025 and december 31, 2024
                                                                                                 
      common stock
    208,000 207,000 206,000 204,000 204,000 203,000 202,000 201,000 201,000 200,000 200,000 199,000 199,000 197,000 197,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 196,000 
      treasury stock
    -110,000 -110,000 -110,000 -110,000 -110,000 -110,000 -110,000 -110,000 -110,000 -819,000 -354,000 -191,000 -191,000 -191,000 -191,000 -191,000 -181,000 -2,002,000 -3,090,000 -8,041,000 -8,041,000 -8,743,000 -10,957,000 -14,795,000 -14,795,000 -14,795,000 -15,143,000 -20,298,000 -20,298,000 -20,299,000 -21,482,000 -26,096,000 -26,097,000 -26,128,000 -27,758,000 -32,915,000 -32,915,000 -32,947,000 -33,979,000 -39,583,000 -39,583,000 -41,152,000 -41,736,000 -44,261,000 -44,261,000 -44,557,000 -45,505,000 -47,811,000 -48,554,000 -48,899,000 -50,367,000  -53,269,000 -52,581,000 -54,664,000 -58,690,000 -59,499,000 -59,790,000 -61,679,000 -69,549,000 -70,263,000 -70,775,000 -72,668,000 -86,419,000 -87,271,000 -88,164,000 -91,734,000 -110,838,000 -112,199,000 -108,307,000 -88,576,000 -88,871,000 -77,298,000 -53,126,000 -55,275,000 -59,295,000 -66,174,000 -68,800,000 -38,047,000 -28,156,000 -21,009,000 -25,881,000 -4,641,000 -8,448,000 -7,357,000 -8,552,000 -12,022,000 -21,898,000 -22,736,000 -24,175,000 -25,706,000 -27,421,000 -27,540,000 
      additional paid in capital
    266,212,000 263,611,000 260,512,000 260,893,000 258,086,000 254,348,000 251,769,000 251,988,000 248,510,000 246,226,000 244,341,000 246,630,000 241,632,000 237,829,000 233,641,000 233,163,000 229,115,000 228,116,000 225,998,000 231,048,000 227,995,000 225,485,000 226,033,000 228,807,000 224,687,000 222,148,000 218,783,000 227,147,000 224,962,000 222,053,000 220,935,000 226,006,000 224,986,000 224,832,000 224,050,000 229,957,000 229,318,000 228,209,000 226,610,000 232,358,000 230,977,000 231,423,000 230,001,000 232,075,000 231,382,000 230,631,000 229,672,000 232,008,000 231,921,000 232,040,000 232,086,000 234,010,000 234,810,000 234,033,000 234,639,000 238,523,000 238,115,000 237,479,000 237,808,000 246,601,000 244,587,000 243,468,000 244,519,000 260,256,000 257,511,000 254,160,000 252,965,000 273,731,000 269,582,000 264,820,000 261,628,000 273,287,000 273,947,000 270,415,000 264,625,000 261,179,000 257,976,000 254,024,000 250,078,000 263,228,000 262,944,000 258,484,000 260,539,000 242,655,000 242,963,000 242,261,000 241,729,000 250,093,000 252,353,000 251,764,000 255,008,000 260,445,000  
      retained earnings
    248,195,000 233,807,000 215,985,000 205,875,000 224,165,000 212,547,000 220,886,000 210,070,000 198,369,000 186,531,000 180,671,000 168,197,000 155,276,000 137,570,000 116,525,000 101,177,000 92,058,000 70,514,000 52,742,000 40,982,000 38,487,000 67,686,000 96,415,000 91,083,000 83,497,000 76,513,000 65,201,000 56,049,000 44,854,000 30,916,000 22,024,000 -716,000 40,927,000 35,273,000 56,082,000 58,030,000 60,050,000 55,607,000 51,447,000 52,572,000 53,807,000 48,810,000 46,346,000 45,431,000 47,169,000 46,668,000 45,358,000 48,511,000 49,414,000 47,605,000 48,097,000 51,704,000 54,481,000 52,766,000 53,312,000 55,029,000 61,528,000 96,714,000 91,662,000 99,056,000 96,172,000 97,289,000 96,937,000 101,091,000 93,940,000 91,765,000 109,769,000 131,061,000 127,909,000 116,062,000 105,452,000 100,624,000 93,645,000 79,802,000 58,783,000 48,874,000 42,098,000 30,947,000 20,557,000 14,631,000 7,702,000           -26,227,000 -6,273,000 
      accumulated other comprehensive loss
    -5,285,000 -5,024,000 -11,543,000      -7,822,000 -3,821,000 -3,746,000                                                                                   
      total stockholders’ equity
    509,220,000 492,491,000 465,050,000 452,817,000 483,285,000 460,932,000 468,785,000 462,278,000 439,148,000 428,317,000 421,112,000 410,646,000 384,531,000 368,474,000 350,765,000 336,020,000 323,256,000 299,553,000 278,570,000 267,602,000 261,066,000 286,203,000 311,765,000 309,115,000 296,635,000 288,449,000 273,419,000 267,156,000 253,833,000 237,866,000 230,489,000 212,705,000 250,971,000 243,513,000 258,517,000 258,590,000 265,765,000 260,379,000 254,863,000 254,802,000 254,095,000 249,263,000 245,348,000 244,664,000 248,556,000 249,595,000 245,787,000 247,873,000 247,027,000 244,397,000 244,813,000 248,347,000  250,689,000 250,904,000 251,295,000 256,514,000 298,811,000 288,672,000 294,542,000 287,588,000 279,023,000 283,583,000 290,852,000 281,068,000 269,812,000 278,139,000 306,304,000 301,609,000 301,513,000 308,621,000 309,800,000 311,187,000 312,467,000 281,996,000 263,705,000 240,994,000 223,530,000 236,820,000 237,485,000 238,271,000 195,791,000 223,049,000 216,126,000 205,064,000 140,518,000 130,672,000 125,813,000 195,925,000 190,998,000 189,696,000 199,711,000 217,213,000 
      total liabilities and stockholders’ equity
    1,264,262,000 1,141,045,000 1,023,691,000 1,194,188,000 1,145,780,000 1,016,325,000 965,470,000 1,141,591,000 1,041,246,000 964,455,000 891,465,000 1,175,638,000 1,073,253,000 982,066,000 895,572,000 1,106,798,000 948,632,000 832,066,000 680,606,000 787,812,000 713,309,000 788,358,000 792,530,000 844,173,000 776,623,000 704,010,000 671,982,000 700,629,000 632,856,000 552,904,000 524,346,000 587,204,000 553,427,000 497,437,000 517,508,000 581,502,000 553,775,000 503,693,000 476,421,000 572,718,000 530,019,000 512,158,000 482,083,000 568,701,000 541,576,000 526,147,000 487,807,000 553,224,000 525,804,000 490,578,000 469,570,000 494,992,000  433,931,000  515,565,000 498,625,000 518,483,000 481,099,000 545,027,000 525,007,000 473,004,000 456,406,000 474,847,000 445,775,000 424,593,000 452,524,000 586,957,000 559,334,000 533,110,000 517,063,000 616,884,000 586,942,000 535,514,000 481,154,000 519,770,000 444,038,000 399,558,000 382,526,000 410,922,000 429,702,000 367,049,000 396,004,000 421,284,000 474,784,000 314,569,000 289,900,000 304,032,000 348,772,000 338,865,000 331,190,000 363,064,000 378,527,000 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2025 and december 31, 2024
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2025 and december 31, 2024
                                                                                                 
      deferred income tax liability - non-current
       1,616,000    6,402,000                                                                                      
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2024 and 2023
                                                                                                 
      accumulated other comprehensive income
       -14,045,000 940,000 -6,056,000 -3,962,000 129,000    -4,189,000 -12,385,000 -6,931,000 593,000 1,675,000 2,068,000 2,729,000 2,724,000 3,417,000 2,429,000 1,579,000 78,000 3,824,000 3,050,000 4,387,000 4,382,000 4,062,000 4,119,000 5,000,000 8,816,000 13,315,000 10,959,000 9,340,000 5,947,000 3,322,000 9,116,000 9,314,000 10,589,000 9,259,000 8,698,000 9,986,000 10,541,000 11,223,000 14,070,000 16,657,000 16,066,000 14,969,000 14,050,000 13,455,000 14,801,000 14,960,000 17,553,000 16,275,000 17,421,000 16,237,000 16,174,000 24,212,000 20,685,000 18,238,000 16,896,000 8,845,000 14,599,000 15,728,000 16,692,000 11,855,000 6,943,000 12,154,000 16,121,000 28,742,000 29,921,000 24,564,000 20,697,000 15,180,000 13,667,000 12,751,000 6,898,000 7,163,000 4,036,000 2,955,000 5,546,000 5,549,000 7,562,000 9,033,000 5,951,000         
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2024 and december 31, 2023
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2024 and december 31, 2023
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2024 and december 31, 2023
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2023 and 2022.
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2023 and december 31, 2022
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2023 and december 31, 2022
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2023 and december 31, 2022
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2022 and 2021.
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2022 and december 31, 2021
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2022 and december 31, 2021
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2022 and december 31, 2021
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2021 and 2020.
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2021 and december 31, 2020
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2021 and december 31, 2020
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2021 and december 31, 2020
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2020 and december 31, 2019
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2020 and december 31, 2019
                                                                                                 
      non-current debt
                         100,000,000 100,000,000        12,000,000    25,000,000                                                           
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2020 and december 31, 2019
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2020 and december 31, 2019
                                                                                                 
      current assets:
                                                                                                 
      non-current assets:
                                                                                                 
      current liabilities:
                                                                                                 
      non-current liabilities:
                                                                                                 
      stockholders’ equity:
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2019 and december 31, 2018
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2019 and december 31, 2018
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2019 and december 31, 2018
                                                                                                 
      accrued salaries and employee benefits
                              95,330,000 227,653,000 177,930,000 120,668,000 83,414,000 177,426,000 127,670,000 88,073,000 72,076,000 155,523,000 120,102,000 87,654,000 60,463,000 158,875,000 120,023,000 83,099,000 60,931,000 130,434,000 104,803,000 80,872,000 51,004,000 109,943,000 88,508,000 62,898,000 44,152,000 102,597,000 86,119,000 64,820,000 48,160,000 131,697,000 115,841,000 87,421,000 69,854,000 124,969,000 115,240,000 80,763,000 57,555,000 65,096,000 62,355,000 51,616,000 63,969,000 163,695,000 140,692,000 113,763,000 89,712,000 197,954,000 160,862,000 117,025,000 91,337,000 154,646,000 111,516,000 80,337,000 53,681,000 84,169,000 95,176,000 68,774,000 52,298,000 68,044,000 86,429,000 68,983,000 51,760,000       
      operating lease liabilities - current
                              32,213,000                                                                   
      operating lease liabilities - non-current
                              90,208,000                                                                   
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2019 and december 31, 2018
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2018 and december 31, 2017
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2018 and december 31, 2017
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2018 and december 31, 2017
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2018 and december 31, 2017
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2017 and december 31, 2016
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2017 and december 31, 2016
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2017 and december 31, 2016
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2017 and december 31, 2016
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2016 and december 31, 2015
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2016 and december 31, 2015
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2016 and december 31, 2015
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2016 and december 31, 2015
                                                                                                 
      restricted cash
                                           7,197,000 7,171,000 7,238,000 6,500,000 6,501,000 7,998,000 55,000 131,000 130,000 128,000 223,000 194,000 199,000 124,000 122,000 128,000 440,000 442,000 952,000 397,000 393,000 387,000  2,402,000 2,402,000 6,043,000 9,489,000 9,477,000 9,655,000 9,650,000 9,806,000 9,761,000 9,826,000 9,143,000 9,136,000 7,934,000 7,900,000                  
      current portion of debt
                                             6,000,000 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000                                           
      non-current term debt, less current maturities
                                                                                                 
      stockholders' equity:
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2015 and december 31, 2014
                                                                                                 
      non-current debt, less current maturities
                                             20,500,000 22,000,000 23,500,000 25,000,000 26,500,000 28,000,000 29,500,000 31,000,000 32,500,000 34,000,000                                           
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2015 and december 31, 2014
                                                                                                 
      other receivables
                                             11,660,000 11,578,000 10,613,000 9,762,000 8,347,000 6,617,000 6,906,000 11,497,000 10,446,000 10,498,000 10,288,000 9,472,000 8,546,000 8,913,000 9,404,000 9,166,000 9,641,000 7,434,000 7,724,000 7,041,000 6,680,000 8,608,000 7,964,000 7,409,000 5,467,000 8,347,000 8,586,000 7,413,000 7,072,000 5,973,000 5,868,000 5,392,000 6,472,000 5,919,000 6,868,000 5,181,000 5,183,000 4,798,000 4,463,000 3,879,000 4,858,000 4,689,000 4,453,000 2,195,000 1,895,000 3,013,000 3,191,000 3,236,000 4,204,000 3,576,000 3,552,000 3,749,000 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2015 and december 31, 2014
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2015 and december 31, 2014
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2014 and december 31, 2013
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2014 and december 31, 2013
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2014 and december 31, 2013
                                                                                                 
      preferred stock, 0.01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2014 and december 31, 2013
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31 2013 and december 31, 2012
                                                                                                 
      accounts receivables
                                                    88,746,000 90,867,000 78,827,000  88,261,000 85,551,000 78,906,000  101,664,000 109,710,000 94,520,000  114,318,000 98,499,000 83,588,000  76,736,000 65,399,000 57,020,000  105,635,000 115,828,000 111,088,000  114,931,000 116,540,000 101,816,000 80,677,000 84,570,000 78,452,000 68,842,000 53,334,000    51,843,000    46,847,000    41,774,000  
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2013 and december 31, 2012
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2013 and december 31, 2012
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2013 and december 31, 2012
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2012 and 2011
                                                                                                 
      december 31, 2012 and 2011, respectively
                                                       -52,523,000                                          
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2012 and december 31, 2011
                                                                                                 
      total stockholders' equity
                                                        253,771,000                                         
      total liabilities and stockholders' equity
                                                        460,232,000  425,202,000                                       
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2012 and december 31, 2011
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2012 and december 31, 2011
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2011 and 2010
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2011 and december 31, 2010, respectively
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2011 and december 31, 2010, respectively
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2011 and december 31, 2010
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2010 and 2009
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2010 and december 31, 2009
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2010 and december 31, 2009
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2010 and december 31, 2009
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2009 and 2008
                                                                                                 
      current portion of accrued restructuring charges
                                                                    3,491,000 9,366,000 8,543,000  2,508,000 2,741,000 2,768,000 2,813,000 3,050,000 2,892,000 3,013,000 3,328,000 3,279,000 3,588,000 3,760,000 6,313,000 12,676,000 19,217,000 8,595,000 10,609,000 10,830,000 12,525,000 14,676,000 18,090,000 13,263,000 12,581,000    
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2009 and december 31, 2008
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2009 and december 31, 2008
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2009 and december 31, 2008
                                                                                                 
      short-term investments
                                                                           22,275,000 69,250,000 70,774,000 29,825,000 73,375,000 60,000,000 50,000,000 88,814,000  60,000,000 70,000,000 127,225,000           
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2008 and 2007
                                                                                                 
      non-current portion of accrued restructuring charges
                                                                        4,543,000 5,439,000 6,081,000 6,735,000 7,393,000 7,900,000 8,658,000 9,386,000 10,287,000 11,133,000 11,672,000 12,297,000 12,500,000 13,741,000 20,634,000 21,632,000 22,100,000 23,704,000 25,402,000 27,698,000 16,275,000 19,120,000    
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2008 and december 31, 2007
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2008 and december 31, 2007
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2008 and december 31, 2007
                                                                                                 
      property and equipment:
                                                                                                 
      leasehold improvements
                                                                           28,913,000    24,461,000    22,624,000    27,686,000    27,416,000    27,385,000  
      office furniture, fixtures and equipment
                                                                           24,296,000    22,317,000    21,052,000    25,812,000    26,879,000    27,906,000  
      computer equipment and software
                                                                           59,612,000    55,960,000    52,781,000    53,664,000    49,959,000    46,414,000  
      property and equipment, gross
                                                                           112,821,000    102,738,000                  
      accumulated depreciation and amortization
                                                                           -94,091,000    -84,090,000    -75,353,000    -79,485,000    -70,788,000    -63,475,000  
      other non-current assets:
                                                                                                 
      total other non-current assets
                                                                           195,456,000    167,444,000    108,039,000    103,437,000    92,217,000    126,358,000  
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2007 and 2006
                                                                                                 
      other accrued liabilities
                                                                            46,119,000 37,689,000 36,858,000  28,996,000 28,538,000 27,633,000 25,314,000 27,044,000 26,235,000 40,962,000 42,843,000 91,806,000 20,661,000 22,256,000       
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2007 and december 31, 2006
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2007 and december 31, 2006
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2007 and december 31, 2006
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2006 and 2005
                                                                                                 
      deferred stock-based compensation
                                                                                   -15,369,000 -17,108,000 -19,863,000 -22,880,000 -2,723,000 -3,094,000 -2,935,000 -2,873,000 -2,395,000 -3,232,000 -4,032,000 -6,964,000 -6,098,000  
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2006 and december 31, 2005
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2006 and december 31, 2005
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2006 and december 31, 2005
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2005 and 2004
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2005 and december 31, 2004
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2005 and december 31, 2004
                                                                                                 
      accumulated deficit
                                                                                     -22,694,000 -17,727,000 -24,587,000 -33,595,000 -95,744,000 -102,670,000 -106,895,000 -34,521,000 -35,573,000 -32,964,000   
      short-term debt
                                                                                      26,000           
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2005 and december 31, 2004
                                                                                                 
      current maturities of long-term debt
                                                                                       27,000 25,000 214,000 217,000 568,000 660,000 980,000 1,155,000 1,161,000 1,652,000 
      long-term debt, less current maturities
                                                                                         27,000 27,000 26,000 78,000 333,000 320,000 294,000 693,000 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2004 and 2003
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2004 and december 31, 2003
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2004 and december 31, 2003
                                                                                                 
      cumulative foreign currency translation adjustment
                                                                                         5,287,000 6,312,000 6,712,000 3,850,000 2,789,000 79,000 -1,241,000 -2,498,000 
      unrealized gain on available for sale investments
                                                                                         5,000        
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2004 and december 31, 2003
                                                                                                 
      accrued expenses—
                                                                                                 
      salaries and employee benefits
                                                                                           61,275,000 62,921,000 56,813,000 45,319,000 67,514,000 80,649,000 
      other
                                                                                           22,056,000 18,591,000 20,009,000 22,864,000 20,704,000 20,793,000 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2003 and 2002
                                                                                                 
      unrealized gain on available-for-sale investments, net of tax
                                                                                            15,000 29,000 47,000 57,000 49,000 
      other intangibles
                                                                                            9,140,000 9,479,000 9,805,000 10,230,000 11,186,000 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2003 and december 31, 2002
                                                                                                 
      assets designated for pension plan
                                                                                             23,938,000 22,498,000 21,196,000  
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at june 30, 2003 and december 31, 2002
                                                                                                 
      current portion of accruals for severance and office consolidations
                                                                                              13,322,000   
      non-current portion of accruals for severance and office consolidations
                                                                                              22,462,000   
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at march 31, 2003 and december 31, 2002
                                                                                                 
      current portion of accrued special charges
                                                                                               20,705,000 10,529,000 
      non-current portion of accrued special charges
                                                                                               18,531,000 14,147,000 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at december 31, 2002 and 2001
                                                                                                 
      assets designated for pension plans
                                                                                                19,497,000 
      accrued expenses:
                                                                                                 
      preferred stock, .01 par value, 10,000,000 shares authorized, no shares issued at september 30, 2002 and december 31, 2001.
                                                                                                 
      additional paid-in capital
                                                                                                260,758,000 
      deferred compensation
                                                                                                -7,479,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.