7Baggers

Insperity, Inc
(NYSE:NSP) 

NSP stock logo

Insperity, Inc. provides human resources (HR) and business solutions to improve business performance for small and medium-sized businesses. The company offers its HR services through its Workforce Optimization and Workforce Synchronization solutions, which include a range of human resources function...

Founded: 1986
Full Time Employees: 232,553
Sector: Industrials
Industry: Staffing & Employment Services

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    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 
                                                                                          
      revenues
    1,895,000,000 1,668,000,000 1,623,000,000 1,658,000,000 1,863,000,000 1,613,000,000 1,561,000,000 1,605,000,000 1,802,000,000 1,580,203,000 1,550,887,000 1,585,129,000 1,769,652,000 1,489,714,000 1,439,160,000 1,432,107,000 1,577,837,000 1,291,236,000 1,209,628,000 1,185,371,000 1,286,835,000 1,056,335,000 1,007,820,000 993,366,000 1,229,483,000 1,075,090,000 1,043,388,000 1,043,316,000 1,153,010,000 966,756,000 925,126,000 922,295,000 1,014,372,000 826,494,000 795,513,000 795,552,000 882,664,000 729,069,000 702,538,000 707,332,000 802,408,000 650,011,000 626,286,000 627,838,000 699,479,000 595,865,000 560,303,000 564,621,000 636,999,000 557,133,000 539,869,000 547,274,000 611,836,000 532,438,000 511,953,000 519,256,000 595,177,000 495,114,000 471,821,000 472,903,000 536,381,000 435,526,000 414,146,000 412,418,000 457,662,000 395,897,000 390,908,000 404,312,000 461,979,000 425,985,000 421,914,000 420,469,000 456,066,000 402,081,000 383,380,000 376,758,000 407,758,000 352,629,000 338,421,000 337,778,000 360,636,000 305,550,000 285,202,000 279,884,000 298,976,000  
      payroll taxes, benefits and workers’ compensation costs
    1,593,000,000 1,496,000,000 1,428,000,000 1,435,000,000 1,553,000,000 1,395,000,000 1,332,000,000 1,345,000,000 1,457,000,000 1,358,116,000 1,292,956,000 1,360,490,000 1,437,506,000 1,248,676,000 1,194,607,000 1,192,239,000 1,292,063,000 1,120,612,000 1,011,149,000 985,817,000 1,035,390,000 888,785,000 822,787,000 773,117,000 995,461,000 913,154,000 872,842,000 869,581,000 926,293,000 805,165,000 759,072,000 767,751,000 814,652,000 683,628,000 655,547,000 664,999,000 723,318,000 618,530,000 584,742,000 594,073,000 652,392,000 552,966,000 519,543,000 523,619,000 569,619,000 494,506,000 459,486,000 469,168,000 530,823,000 467,155,000 442,460,000 449,528,000 503,718,000 438,935,000 413,533,000 431,962,000 492,173,000 405,168,000 384,792,000 389,062,000 445,422,000 354,718,000 340,460,000 341,061,000 384,977,000 334,559,000 319,807,000 332,345,000 378,418,000 338,413,000 336,415,000 336,408,000 369,459,000 317,735,000 308,338,000 298,291,000 339,691,000 277,973,000 266,557,000 269,562,000 292,643,000 238,328,000 227,031,000 223,549,000 244,948,000  
      gross profit
    302,000,000 172,000,000 195,000,000 223,000,000 310,000,000 218,000,000 229,000,000 260,000,000 345,000,000 222,087,000 257,931,000 224,639,000 332,146,000 241,038,000 244,553,000 239,868,000 285,774,000 170,624,000 198,479,000 199,554,000 251,445,000 167,550,000 185,033,000 220,249,000 234,022,000 161,936,000 170,546,000 173,735,000 226,717,000 161,591,000 166,054,000 154,544,000 199,720,000 142,866,000 139,966,000 130,553,000 159,346,000 110,539,000 117,796,000 113,259,000 150,016,000 97,045,000 106,743,000 104,219,000 129,860,000 101,359,000 100,817,000 95,453,000 106,176,000 89,978,000 97,409,000 97,746,000 108,118,000 93,503,000 98,420,000 87,294,000 103,004,000 89,946,000 87,029,000 83,841,000 90,959,000 80,808,000 73,686,000 71,357,000 72,685,000 61,338,000 71,101,000 71,967,000 83,561,000 87,572,000 85,499,000 84,061,000 86,607,000 84,346,000 75,042,000 78,467,000 68,067,000 74,656,000 71,864,000 68,216,000 67,993,000 67,222,000 58,171,000 56,335,000 54,028,000  
      yoy
    -2.58% -21.10% -14.85% -14.23% -10.14% -1.84% -11.22% 15.74% 3.87% -7.86% 5.47% -6.35% 16.23% 41.27% 23.21% 20.20% 13.65% 1.83% 7.27% -9.40% 7.45% 3.47% 8.49% 26.77% 3.22% 0.21% 2.71% 12.42% 13.52% 13.11% 18.64% 18.38% 25.34% 29.24% 18.82% 15.27% 6.22% 13.90% 10.35% 8.67% 15.52% -4.26% 5.88% 9.18% 22.31% 12.65% 3.50% -2.35% -1.80% -3.77% -1.03% 11.97% 4.96% 3.95% 13.09% 4.12% 13.24% 11.31% 18.11% 17.50% 25.14% 31.74% 3.64% -0.85% -13.02% -29.96% -16.84% -14.39% -3.52% 3.82% 13.93% 7.13% 27.24% 12.98% 4.42% 15.03% 0.11% 11.06% 23.54% 21.09% 25.85%      
      qoq
    75.58% -11.79% -12.56% -28.06% 42.20% -4.80% -11.92% -24.64% 55.34% -13.90% 14.82% -32.37% 37.80% -1.44% 1.95% -16.06% 67.49% -14.03% -0.54% -20.64% 50.07% -9.45% -15.99% -5.89% 44.52% -5.05% -1.84% -23.37% 40.30% -2.69% 7.45% -22.62% 39.80% 2.07% 7.21% -18.07% 44.15% -6.16% 4.01% -24.50% 54.58% -9.09% 2.42% -19.75% 28.12% 0.54% 5.62% -10.10% 18.00% -7.63% -0.34% -9.59% 15.63% -5.00% 12.75% -15.25% 14.52% 3.35% 3.80% -7.83% 12.56% 9.67% 3.26% -1.83% 18.50% -13.73% -1.20% -13.87% -4.58% 2.42% 1.71% -2.94% 2.68% 12.40% -4.36% 15.28% -8.83% 3.89% 5.35% 0.33% 1.15% 15.56% 3.26% 4.27%   
      salaries, wages and payroll taxes
    140,000,000 122,000,000 125,000,000 129,000,000 142,000,000 128,000,000 127,000,000 126,000,000 140,000,000 112,158,000 113,074,000 110,942,000 124,541,000 107,459,000 109,525,000 106,522,000 107,439,000 92,502,000 89,232,000 94,362,000 103,075,000 86,633,000 89,429,000 90,710,000 86,501,000 79,784,000 79,264,000 74,696,000 83,380,000 74,541,000 70,552,000 68,748,000 87,186,000 70,393,000 65,223,000 61,458,000 62,457,000 58,679,000 56,897,000 55,998,000 58,015,000 52,749,000 51,329,000 50,234,000 56,748,000 51,873,000 49,384,000 47,829,000 51,032,000 43,747,000 43,797,000 45,689,000 48,211,000 41,405,000 44,032,000 40,047,000 43,323,000 37,675,000 39,494,000 38,467,000 39,597,000 38,343,000 34,866,000 34,505,000 39,187,000 35,146,000 34,644,000 35,644,000 38,652,000 39,759,000 39,373,000 37,427,000 36,979,000 34,753,000 31,774,000 33,076,000 32,045,000 31,906,000 30,393,000 29,440,000 28,224,000 26,126,000 25,471,000 24,634,000 23,331,000  
      stock-based compensation
    13,000,000 14,000,000 16,000,000 20,000,000 11,000,000 14,000,000 17,000,000 20,000,000 10,000,000 11,320,000 15,210,000 15,356,000 11,110,000 11,262,000 13,341,000 15,631,000 9,846,000 4,658,000 10,362,000 13,781,000 11,822,000 22,035,000 20,864,000 10,694,000 6,552,000 3,180,000 6,517,000 8,256,000 6,040,000 5,769,000 5,769,000 5,752,000 3,135,000 7,955,000 6,584,000 5,303,000 4,503,000 4,116,000 4,191,000 4,761,000 3,575,000 3,171,000 3,710,000 4,041,000 2,423,000 2,707,000 2,701,000 3,245,000 2,400,000 2,752,000 2,749,000 3,292,000 2,310,000 2,429,000 2,429,000 2,801,000 2,155,000 2,146,000 2,109,000 2,556,000 1,790,000 1,978,000 1,970,000 2,410,000 1,768,000 2,183,000 2,184,000 2,911,000 2,786,000 2,340,000 2,337,000 2,908,000 2,385,000 1,885,000 1,885,000 2,435,000 1,308,000 1,043,000 1,011,000 1,068,000 289,000 314,000 360,000 367,000 1,038,000  
      commissions
    10,000,000 11,000,000 13,000,000 10,000,000 11,000,000 13,000,000 11,000,000 11,000,000 12,000,000 13,019,000 10,773,000 12,038,000 11,017,000 13,551,000 11,068,000 10,743,000 10,310,000 10,228,000 8,724,000 8,251,000 7,719,000 9,178,000 7,722,000 7,475,000 8,460,000 8,693,000 8,034,000 7,741,000 6,952,000 9,094,000 6,818,000 6,979,000 6,066,000 6,958,000 5,675,000 5,664,000 4,476,000 5,642,000 5,030,000 4,335,000 4,281,000 5,556,000 4,516,000 4,103,000 4,304,000 4,532,000 3,790,000 3,717,000 3,246,000 4,232,000 3,609,000 3,533,000 3,207,000 4,216,000 3,358,000 3,506,000 3,435,000 3,701,000 3,399,000 3,255,000 3,096,000 3,387,000 2,889,000 2,818,000 2,787,000 2,824,000 2,807,000 2,896,000 3,273,000 3,086,000 3,211,000 3,274,000 3,094,000 3,068,000 3,104,000 2,704,000 2,919,000 2,704,000 2,722,000 2,709,000 2,833,000 2,659,000 2,610,000 2,488,000 2,364,000  
      advertising
    11,000,000 10,000,000 10,000,000 11,000,000 7,000,000 10,000,000 9,000,000 12,000,000 7,000,000 7,549,000 7,240,000 16,595,000 5,940,000 6,691,000 9,790,000 12,427,000 8,595,000 5,293,000 9,507,000 8,975,000 5,322,000 6,222,000 4,781,000 5,720,000 4,833,000 4,129,000 4,895,000 7,548,000 5,031,000 4,558,000 3,846,000 6,585,000 3,565,000 3,063,000 3,476,000 6,175,000 3,972,000 3,148,000 3,540,000 6,712,000 3,047,000 1,299,000 3,574,000 7,389,000 3,718,000 4,001,000 4,885,000 8,356,000 4,941,000 4,552,000 4,273,000 9,720,000 5,250,000 4,585,000 3,680,000 8,566,000 4,755,000 8,333,000 5,235,000 7,539,000 5,506,000 5,267,000 2,605,000 4,698,000 3,877,000 5,954,000 2,632,000 3,439,000 3,986,000 6,668,000 3,062,000 4,158,000 3,778,000 5,009,000 3,074,000 3,958,000 2,102,000 5,454,000 2,819,000 3,319,000 2,383,000 4,745,000 2,956,000 1,524,000 2,875,000  
      general and administrative expenses
    55,000,000 49,000,000 45,000,000 49,000,000 60,000,000 57,000,000 53,000,000 57,000,000 57,000,000 44,965,000 41,504,000 43,161,000 48,034,000 40,919,000 38,115,000 36,095,000 41,005,000 32,432,000 31,134,000 29,211,000 31,636,000 27,913,000 25,646,000 24,755,000 34,853,000 30,637,000 29,773,000 29,866,000 33,162,000 28,503,000 25,294,000 27,419,000 29,852,000 25,958,000 24,513,000 24,610,000 26,192,000 20,337,000 21,318,000 21,254,000 23,784,000 20,681,000 19,191,000 20,332,000 24,055,000 18,475,000 20,295,000 21,116,000 22,732,000 19,107,000 20,567,000 20,039,000 21,986,000 15,870,000 21,122,000 18,494,000 22,078,000 17,517,000 18,912,000 17,023,000 21,893,000 15,540,000 15,546,000 14,634,000 17,494,000 15,270,000 15,111,000 14,228,000 17,772,000 17,044,000 16,642,000 16,923,000 18,739,000 16,655,000 15,576,000 14,276,000 15,946,000 12,836,000 14,722,000 13,876,000 15,975,000 13,883,000 12,476,000 12,818,000 13,783,000  
      depreciation and amortization
    11,000,000 12,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 10,805,000 10,666,000 10,740,000 10,497,000 10,293,000 10,083,000 10,100,000 10,184,000 10,832,000 9,917,000 9,751,000 8,047,000 7,860,000 7,819,000 7,908,000 7,602,000 7,794,000 7,330,000 6,908,000 6,691,000 6,507,000 5,642,000 5,480,000 5,213,000 4,827,000 4,696,000 4,405,000 4,254,000 4,150,000 4,047,000 4,176,000 4,271,000 4,203,000 4,487,000 4,590,000 5,285,000 5,560,000 5,302,000 5,291,000 5,234,000 5,372,000 5,302,000 5,245,000 5,145,000 4,914,000 4,659,000 4,465,000 4,212,000 3,883,000 3,786,000 3,601,000 3,948,000 3,641,000 3,732,000 3,723,000 3,811,000 3,993,000 4,160,000 4,244,000 4,195,000 4,174,000 3,951,000 3,799,000 3,646,000 4,905,000 3,827,000 3,704,000 3,720,000 3,818,000 3,896,000 3,829,000 3,895,000 4,068,000 3,693,000 3,649,000 3,757,000  
      total operating expenses
    240,000,000 218,000,000 220,000,000 230,000,000 242,000,000 233,000,000 228,000,000 237,000,000 237,000,000 199,816,000 198,467,000 208,832,000 211,139,000 190,175,000 191,922,000 191,518,000 187,379,000 155,945,000 158,876,000 164,331,000 167,621,000 159,841,000 156,261,000 147,262,000 148,801,000 134,217,000 135,813,000 135,015,000 141,256,000 128,972,000 117,921,000                                                        
      operating income
    62,000,000 -46,000,000 -25,000,000 -7,000,000 68,000,000 -15,000,000 1,000,000 23,000,000 108,000,000 22,271,000 59,464,000 15,807,000 121,007,000 50,863,000 52,631,000 48,350,000 98,395,000 14,679,000 39,603,000 35,223,000 83,824,000 7,709,000 28,772,000 72,987,000 85,221,000 27,719,000 34,733,000 38,720,000 85,461,000 32,619,000 48,133,000 33,581,000 64,703,000 23,712,000 29,799,000 22,938,000 53,492,000 14,467,000 22,773,000 16,023,000 53,043,000 10,026,000 19,936,000 12,217,000 23,520,000 13,009,000 14,460,000 3,414,000 16,591,000 6,874,000 17,112,000 10,228,000 22,009,000 15,893,000 19,140,000 9,415,000 23,046,000 16,691,000 14,094,000 11,400,000 15,129,000 12,652,000 12,078,000 8,569,000 3,761,000 -4,032,000 9,563,000 8,605,000 12,897,000 14,501,000 16,923,000 15,572,000 17,986,000 18,071,000 15,802,000 18,314,000 10,027,000 16,895,000 16,301,000 13,975,000 14,394,000 15,427,000 10,605,000 10,855,000 6,880,000  
      yoy
    -8.82% 206.67% -2600.00% -130.43% -37.04% -167.35% -98.32% 45.51% -10.75% -56.21% 12.98% -67.31% 22.98% 246.50% 32.90% 37.27% 17.38% 90.41% 37.64% -51.74% -1.64% -72.19% -17.16% 88.50% -0.28% -15.02% -27.84% 15.30% 32.08% 37.56% 61.53% 46.40% 20.96% 63.90% 30.85% 43.16% 0.85% 44.29% 14.23% 31.15% 125.52% -22.93% 37.87% 257.85% 41.76% 89.25% -15.50% -66.62% -24.62% -56.75% -10.60% 8.64% -4.50% -4.78% 35.80% -17.41% 52.33% 31.92% 16.69% 33.04% 302.26% -413.79% 26.30% -0.42% -70.84% -127.80% -43.49% -44.74% -28.29% -19.76% 7.09% -14.97% 79.38% 6.96% -3.06% 31.05% -30.34% 9.52% 53.71% 28.74% 109.22%      
      qoq
    -234.78% 84.00% 257.14% -110.29% -553.33% -1600.00% -95.65% -78.70% 384.94% -62.55% 276.19% -86.94% 137.91% -3.36% 8.85% -50.86% 570.31% -62.93% 12.44% -57.98% 987.35% -73.21% -60.58% -14.36% 207.45% -20.19% -10.30% -54.69% 162.00% -32.23% 43.33% -48.10% 172.87% -20.43% 29.91% -57.12% 269.75% -36.47% 42.13% -69.79% 429.05% -49.71% 63.18% -48.06% 80.80% -10.03% 323.55% -79.42% 141.36% -59.83% 67.31% -53.53% 38.48% -16.96% 103.29% -59.15% 38.07% 18.43% 23.63% -24.65% 19.58% 4.75% 40.95% 127.84% -193.28% -142.16% 11.13% -33.28% -11.06% -14.31% 8.68% -13.42% -0.47% 14.36% -13.72% 82.65% -40.65% 3.64% 16.64% -2.91% -6.70% 45.47% -2.30% 57.78%   
      other income:
                                                                                          
      interest income
    7,000,000 6,000,000 7,000,000 7,000,000 10,000,000 9,000,000 9,000,000 9,000,000 10,000,000 8,973,000 7,950,000 7,966,000 8,777,000 5,492,000 2,808,000 945,000 148,000 217,000 251,000 1,436,000 543,000 246,000 103,000 369,000 1,879,000 2,036,000 2,574,000 2,802,000 3,245,000 2,701,000 2,028,000 1,807,000 1,456,000 1,255,000 1,015,000 678,000 465,000 340,000 335,000 293,000 299,000                   304,000 284,000 217,000 286,000 255,000 203,000 201,000 478,000 358,000 579,000 947,000 1,727,000 1,876,000 2,507,000 2,777,000 2,957,000 2,987,000 2,997,000 2,999,000 2,567,000 3,008,000 2,809,000 2,452,000 1,645,000 1,330,000 1,122,000  
      interest expense
    -6,000,000 -6,000,000 -6,000,000 -6,000,000 -6,000,000 -7,000,000 -7,000,000 -7,000,000 -7,000,000 -7,198,000 -7,047,000 -6,687,000 -6,205,000 -5,509,000 -4,082,000 -2,691,000 -1,925,000 -1,921,000 -1,963,000 -1,975,000 -1,599,000 -1,704,000 -1,731,000 -2,219,000 -2,362,000 -2,205,000 -2,122,000 -1,639,000 -1,681,000 -1,316,000 -1,174,000 -1,108,000 -1,070,000 -893,000 -894,000 -803,000 -623,000 -481,000 -628,000 -650,000 -637,000                                 -24,000 -26,000 -29,000 -32,000 -35,000 -14,000 -392,000 -670,000 -650,000 -594,000 -571,000 -544,000  
      income before income tax expense
    63,000,000 -46,000,000 -24,000,000 -6,000,000 72,000,000 -13,000,000 3,000,000 25,000,000 111,000,000 24,046,000 60,367,000 17,086,000 123,579,000 50,846,000 51,357,000 46,604,000 96,618,000 12,975,000 37,891,000 34,684,000 82,768,000 6,251,000 27,144,000 71,137,000 84,738,000 27,550,000 35,185,000 39,883,000 87,025,000 34,004,000 48,987,000 34,280,000 65,089,000 24,074,000 29,920,000 22,813,000 53,334,000 14,326,000 22,480,000 15,666,000 52,705,000 9,960,000 19,955,000 12,177,000 23,527,000 13,062,000 14,503,000 3,450,000 16,612,000 6,896,000 17,137,000 7,612,000 22,087,000 16,086,000 19,279,000 9,591,000 23,334,000 16,820,000 6,838,000 11,704,000 15,413,000 12,869,000 12,364,000 8,824,000 3,964,000 -3,831,000 10,041,000  13,476,000    20,460,000    13,001,000          
      income tax expense
    30,000,000 -13,000,000 -4,000,000 -1,000,000 21,000,000 -4,000,000  7,000,000 32,000,000 4,485,000 16,035,000 4,192,000 28,984,000 12,648,000 13,688,000 13,005,000 26,734,000 3,267,000 10,595,000 9,530,000 20,846,000 1,966,000 7,135,000 19,286,000 22,646,000 7,155,000 9,326,000 11,327,000 10,736,000 9,349,000 12,780,000 9,720,000 15,098,000 8,520,000 10,718,000 8,795,000 17,706,000 4,806,000 8,415,000 5,953,000 20,012,000 3,621,000 8,005,000 4,863,000 9,740,000 4,898,000 6,118,000 1,559,000 7,048,000 1,607,000 7,055,000 4,124,000 8,914,000 6,641,000 7,827,000 3,970,000 9,450,000 5,976,000 2,739,000 4,963,000 6,627,000 5,080,000 5,130,000 3,706,000 1,665,000 -1,022,000 4,209,000 3,578,000 5,310,000 5,752,000 6,727,000 6,454,000 7,304,000 7,128,000 6,583,000 7,627,000 4,608,000 6,624,000 6,754,000 6,087,000 6,111,000 6,190,000 4,389,000 4,336,000 2,849,000  
      net income
    33,000,000 -33,000,000 -20,000,000 -5,000,000 51,000,000 -9,000,000 3,000,000 18,000,000 79,000,000 19,561,000 44,332,000 12,894,000 94,595,000 38,198,000 37,669,000 33,599,000 69,884,000 9,708,000 27,296,000 25,154,000 61,922,000 4,285,000 20,009,000 51,851,000 62,092,000 20,395,000 25,859,000 28,556,000 76,289,000 24,655,000 36,207,000 24,560,000 49,991,000 15,554,000 19,202,000 14,018,000 35,628,000 9,520,000 14,065,000 9,713,000 32,693,000 6,339,000 11,950,000 7,314,000 13,787,000 8,164,000 8,385,000 1,891,000 9,564,000 5,289,000 10,082,000 3,488,000 13,173,000 9,445,000 11,452,000 5,621,000 13,884,000 10,844,000 4,099,000 6,741,000 8,786,000 7,789,000 7,234,000 5,118,000 2,299,000 -2,809,000 5,832,000 5,385,000 8,166,000 9,708,000 11,929,000 10,987,000 13,156,000 13,301,000 12,154,000 13,645,000 8,393,000 13,355,000 12,113,000 10,497,000 10,541,000 10,926,000 7,183,000 7,284,000 4,590,000  
      yoy
    -35.29% 266.67% -766.67% -127.78% -35.44% -146.01% -93.23% 39.60% -16.49% -48.79% 17.69% -61.62% 35.36% 293.47% 38.00% 33.57% 12.86% 126.56% 36.42% -51.49% -0.27% -78.99% -22.62% 81.58% -18.61% -17.28% -28.58% 16.27% 52.61% 58.51% 88.56% 75.20% 40.31% 63.38% 36.52% 44.32% 8.98% 50.18% 17.70% 32.80% 137.13% -22.35% 42.52% 286.78% 44.16% 54.36% -16.83% -45.79% -27.40% -44.00% -11.96% -37.95% -5.12% -12.90% 179.39% -16.61% 58.02% 39.22% -43.34% 31.71% 282.17% -377.29% 24.04% -4.96% -71.85% -128.93% -51.11% -50.99% -37.93% -27.01% -1.85% -19.48% 56.75% -0.40% 0.34% 29.99% -20.38% 22.23% 68.63% 44.11% 129.65%      
      qoq
    -200.00% 65.00% 300.00% -109.80% -666.67% -400.00% -83.33% -77.22% 303.86% -55.88% 243.82% -86.37% 147.64% 1.40% 12.11% -51.92% 619.86% -64.43% 8.52% -59.38% 1345.09% -78.58% -61.41% -16.49% 204.45% -21.13% -9.44% -62.57% 209.43% -31.91% 47.42% -50.87% 221.40% -19.00% 36.98% -60.65% 274.24% -32.31% 44.81% -70.29% 415.74% -46.95% 63.39% -46.95% 68.88% -2.64% 343.42% -80.23% 80.83% -47.54% 189.05% -73.52% 39.47% -17.53% 103.74% -59.51% 28.03% 164.55% -39.19% -23.28% 12.80% 7.67% 41.34% 122.62% -181.84% -148.17% 8.30% -34.06% -15.88% -18.62% 8.57% -16.49% -1.09% 9.44% -10.93% 62.58% -37.15% 10.25% 15.39% -0.42% -3.52% 52.11% -1.39% 58.69%   
      net income per share
                                                                                          
      basic
    0.88 -0.88 -0.53 -0.14 1.37 -0.21 0.07 0.48 2.11 0.53 1.17 0.34 2.49 0.99 0.88 1.82 0.25 0.71 0.65 1.62 0.12 0.52 1.34 1.59 0.53 0.64 0.69 1.86 0.6 0.86                                                        
      diluted
    0.88 -0.88 -0.53 -0.14 1.35 -0.21 0.07 0.48 2.08 0.53 1.16 0.33 2.45 0.98 0.98 0.87 1.8 0.24 0.7 0.65 1.59 0.11 0.51 1.33 1.58 0.52 0.63 0.69 1.85 0.59 0.86                                                        
      less distributed and undistributed earnings allocated to participating securities
                 -6,750  -1,000 -47,000 9,000 -39,000 -37,000 -197,000 10,000 -104,000 -276,000 -462,000 -213,000 -284,000 -309,000 -1,031,000 -329,000 -503,000 -346,000 -585,000 -284,000 -337,000 -248,000 -781,000 -213,000 -330,000 -229,000 -664,000 -159,000 -303,000 -179,000 -355,000 -1,426,000 -243,000 -139,000 -282,000 -147,000 -289,000 -124,000 -383,000                                  
      net income allocated to common shares
                 35,281,250 37,669,000 33,598,000 69,837,000 9,717,000 27,257,000 25,117,000 61,725,000 4,295,000 19,905,000 51,575,000 61,630,000 20,182,000 25,575,000 28,247,000 75,258,000 24,326,000 35,704,000 24,214,000 49,406,000 15,270,000 18,865,000 13,770,000 34,847,000 9,307,000 13,735,000 9,484,000 32,029,000 6,180,000 11,647,000 7,135,000 13,432,000 6,738,000 8,142,000 1,752,000 9,282,000 5,142,000 9,793,000 3,364,000 12,790,000 9,119,000 11,118,000 5,459,000 13,482,000 10,518,000 3,979,000  8,522,000                          
      direct costs:
                                                                                          
      operating expenses:
                                                                                          
      operating expenses: - sum
                                   120,963,000 135,017,000 119,154,000 110,167,000 107,615,000 105,854,000 96,072,000 95,023,000 97,236,000 96,973,000 87,019,000 86,807,000 92,002,000 106,340,000 88,350,000 86,357,000 92,039,000 89,585,000 83,104,000 80,297,000 87,518,000 86,109,000 77,610,000 79,280,000 77,879,000 79,958,000 73,255,000 72,935,000 72,441,000 75,830,000 68,156,000 61,608,000 62,788,000 68,924,000 65,370,000 61,538,000 63,362,000 70,664,000 73,071,000 68,576,000 68,489,000 68,621,000 66,275,000 59,240,000 60,153,000 58,040,000 57,761,000 55,563,000 54,241,000 53,599,000 51,795,000 47,566,000 45,480,000 47,148,000  
      basic net income per share of common stock
                                   0.59 1.2 -1.27 0.92 0.67 1.69 0.46 0.66 0.45 1.53 0.26 0.48 0.29 0.54 0.27 0.33 0.07 0.37 0.2 0.39 0.14 0.51 0.37 0.45 0.22 0.54 0.41 0.16 0.25 0.33 0.3 0.28 0.2 0.09 -0.11 0.23 0.22 0.33 0.39 0.47 0.43 0.52 0.51 0.46 0.51 0.31 0.48 0.44 0.38 0.39 0.42 0.28 0.28 0.18  
      diluted net income per share of common stock
                                   0.58 1.18 -1.26 0.91 0.66 1.69 0.45 0.66 0.45 1.53 0.26 0.48 0.29 0.54 0.27 0.33 0.07 0.37 0.21 0.39 0.14 0.51 0.36 0.45 0.22 0.54 0.42 0.16 0.25 0.33 0.3 0.28 0.2 0.09 -0.11 0.23 0.22 0.33 0.39 0.46 0.43 0.51 0.5 0.45 0.5 0.3 0.47 0.43 0.37 0.37 0.4 0.26 0.28 0.18  
      impairment charges and other
                                             -640,000  1,313,000 9,807,000                                          
      interest
                                             31,000 3,000 -8,000 7,000 26,000 9,000 24,000 47,000 3,000 26,000 60,000 69,000 147,000 142,000 156,000 164,000 140,000 245,000                            
      other
                                             -97,000 16,000 -32,000  27,000 34,000 12,000 -26,000 19,000 -1,000 -2,676,000 9,000 46,000 -3,000 20,000 124,000 -11,000 -7,501,000           78,000 6,000 -7,000 -33,000 -395,000 4,000  9,000 120,000 13,000 -7,000 119,000 -113,000 -84,000 6,000 -19,000  
      impairment charge
                                                 621,250  2,485,000                                       
      other income: - sum
                                                         150,750 139,000 176,000                               
      less net income allocated to participating securities
                                                         -224,500 -334,000 -162,000 -402,000 -326,000 -120,000  -264,000                          
      less net income allocated to common shares
                                                               -199,000                           
      net income allocated to participating securities
                                                               6,542,000                           
      income before income taxes
                                                                       8,963,000  14,139,250 18,656,000 17,441,000  13,252,500 18,737,000 21,272,000  13,025,750 18,867,000 16,584,000  7,657,750 11,572,000 11,620,000   
      net income before income tax expense
                                                                                    16,652,000    7,439,000  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 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 
                                                                                            
        assets
                                                                                            
        cash and cash equivalents
      537,000,000 642,000,000 422,000,000 441,000,000 551,000,000 1,039,000,000 470,000,000 676,000,000 667,000,000 692,873,000 678,588,000 580,093,000 696,588,000 732,828,000 562,143,000 510,869,000 576,654,000 575,812,000 467,921,000 455,387,000 494,777,000 554,846,000 372,356,000 459,399,000 404,728,000 367,342,000 243,439,000 324,926,000 398,936,000 326,773,000 328,299,000 308,711,000 354,641,000 354,260,000 285,934,000 241,890,000 303,850,000 286,034,000 223,550,000 271,573,000 318,848,000 269,538,000 201,085,000 167,728,000 228,588,000 276,456,000 179,458,000 168,889,000 213,518,000 225,755,000 161,842,000 178,493,000 227,432,000 264,544,000 202,218,000 180,590,000 234,548,000 211,208,000 169,910,000 265,191,000 277,805,000 234,829,000 207,930,000 169,382,000 212,469,000 227,085,000 194,666,000 181,590,000 196,583,000 252,190,000 189,470,000 158,637,000 159,311,000 135,793,000 114,926,000 118,933,000 141,001,000 148,416,000 107,185,000 108,713,000 150,929,000 137,407,000 108,818,000 140,241,000 123,930,000 81,740,000 
        restricted cash
      80,000,000 82,000,000 79,000,000 76,000,000 74,000,000 69,000,000 67,000,000 64,000,000 61,000,000 57,403,000 51,263,000 48,002,000 48,113,000 49,779,000 51,829,000 53,329,000 49,429,000 46,929,000 47,813,000 46,128,000 46,353,000 45,522,000 45,265,000 45,216,000 48,349,000 49,295,000 45,251,000 43,268,000 44,705,000 42,227,000 42,257,000 41,827,000 41,137,000 41,137,000 41,748,000 41,703,000 42,458,000 42,637,000 41,779,000 41,226,000 40,281,000 37,418,000 43,056,000 48,887,000 45,152,000 44,040,000 57,222,000 53,441,000 52,162,000 51,928,000 50,317,000 47,467,000 47,374,000 47,149,000 46,069,000 44,580,000 45,068,000 44,737,000 42,812,000 41,331,000 40,807,000 41,204,000 39,661,000 37,744,000 36,236,000 36,436,000 35,422,000 35,276,000 35,103,000 36,466,000 35,689,000 34,320,000 34,729,000 35,318,000 36,195,000 35,792,000 36,643,000 37,405,000 34,858,000 31,224,000 29,116,000 27,580,000 25,730,000 22,138,000 20,140,000 18,511,000 
        marketable securities
      18,000,000 18,000,000 18,000,000 15,000,000 17,000,000 16,000,000 16,000,000 16,000,000 16,000,000 15,905,000 13,837,000 35,998,000 35,535,000 33,068,000 34,493,000 30,781,000 32,610,000 31,791,000 32,697,000 34,597,000 34,292,000 34,529,000 33,994,000 31,952,000 19,508,000 34,728,000 60,880,000 61,129,000 53,599,000 60,781,000 37,576,000 7,207,000 1,928,000 1,960,000 1,950,000 1,929,000 1,841,000 1,851,000 1,820,000 1,881,000 1,894,000 9,875,000 9,754,000 21,648,000 28,840,000 28,631,000 45,953,000 43,431,000 46,897,000 46,340,000 47,400,000 52,686,000 51,397,000 16,904,000 51,702,000 57,182,000 56,981,000 56,987,000 55,394,000 37,598,000 42,267,000 43,367,000 43,101,000 40,949,000 26,596,000 6,037,000    225,000 226,000 3,831,000 25,942,000 74,880,000 89,034,000 86,348,000 90,525,000 85,617,000 81,763,000 80,459,000 63,617,000 57,973,000 46,854,000 27,921,000 28,163,000 27,950,000 
        accounts receivable
      880,000,000 826,000,000 894,000,000 843,000,000 834,000,000 829,000,000 765,000,000 740,000,000 724,000,000 693,878,000 656,695,000 605,065,000 607,313,000 622,764,000 558,700,000 685,857,000 670,223,000 513,306,000 579,503,000 595,836,000 561,244,000 392,746,000 528,712,000 473,935,000 520,745,000 465,779,000 483,890,000 424,135,000 421,297,000 400,623,000                                                         
        prepaid insurance and related assets
      67,000,000 6,000,000 17,000,000 41,000,000 56,000,000 25,000,000 31,000,000 34,000,000 37,000,000 7,013,000 21,260,000 22,747,000                                                                           
        income taxes receivable
      30,000,000 29,000,000 35,000,000 11,000,000 8,000,000       11,588,000    5,684,000  12,413,000 5,584,000 5,128,000 3,451,000     3,691,000 11,684,000 11,456,000     2,695,000 9,824,000 878,000 6,878,000  4,949,000 4,084,000 6,690,000       2,740,000 7,730,000 9,040,000 409,000       617,000 2,902,000 989,000 976,000  1,808,000  3,333,000 3,335,000 2,692,000        3,918,000  48,000  3,193,000 1,768,000 2,365,000 1,207,000  6,816,000 2,576,000  489,000 
        funds held for clients and other current assets
      118,000,000 119,000,000 89,000,000 90,000,000 114,000,000 107,000,000 84,000,000 91,000,000 114,000,000 128,220,000                                                                             
        total current assets
      1,730,000,000 1,722,000,000 1,554,000,000 1,517,000,000 1,654,000,000 2,085,000,000 1,433,000,000 1,621,000,000 1,619,000,000 1,595,292,000 1,477,680,000 1,363,637,000 1,518,074,000 1,511,873,000 1,289,006,000 1,410,645,000 1,431,914,000 1,244,848,000 1,206,468,000 1,201,289,000 1,251,505,000 1,077,268,000 1,048,858,000 1,068,647,000 1,079,280,000 974,746,000 893,743,000 919,177,000 980,081,000 866,536,000 846,162,000 749,787,000 801,013,000 778,935,000 671,039,000 599,032,000 650,476,000 640,322,000 548,664,000 611,481,000 636,393,000 542,048,000 568,464,000 551,594,000 633,593,000 569,509,000 573,651,000 534,275,000 598,037,000 565,317,000 509,418,000 510,301,000 561,159,000 551,465,000 535,909,000 487,916,000 549,366,000 522,788,000 459,343,000 514,561,000 553,269,000 498,088,000 467,143,000 458,475,000 472,065,000 418,221,000 419,904,000 414,668,000 433,002,000 449,620,000 433,890,000 386,659,000 409,754,000 413,411,000 407,606,000 382,312,000 408,872,000 415,079,000 362,953,000 334,775,000 363,589,000 338,561,000 300,956,000 287,250,000 282,553,000 214,309,000 
        property and equipment
      172,000,000 177,000,000 180,000,000 182,000,000 186,000,000 192,000,000 190,000,000 186,000,000 191,000,000 197,424,000 190,672,000 192,829,000 196,382,000 199,992,000 196,601,000 199,322,000 205,064,000 210,723,000 212,322,000 219,611,000 220,262,000 216,256,000 196,210,000 177,762,000 160,297,000 147,706,000 134,956,000 120,828,000 116,131,000 117,213,000 100,681,000                                                        
        right-of-use (“rou”) leased assets
      60,000,000 63,000,000 65,000,000 66,000,000 67,000,000 65,000,000 66,000,000 55,000,000 56,000,000 57,438,000 53,949,000 52,165,000 53,303,000  56,626,000 59,149,000 61,629,000  63,673,000 66,463,000 67,688,000  60,682,000                                                                
        prepaid health insurance
      9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000  9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 9,000,000 11,000,000 11,000,000         
        deposits – health insurance
      8,000,000  8,000,000 8,000,000 8,000,000  8,000,000 8,000,000 8,000,000  7,900,000 7,900,000 7,900,000  7,900,000 7,900,000 7,900,000  7,900,000 7,900,000 7,900,000  7,900,000 8,100,000 8,100,000  6,600,000 6,600,000 6,200,000  5,300,000 5,300,000 5,300,000 5,300,000 5,300,000 5,300,000 4,700,000 4,700,000 4,700,000 4,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,700,000 3,000,000 3,000,000 3,000,000 3,000,000 2,840,000 2,840,000 2,640,000 2,640,000 2,640,000 2,640,000 2,640,000 2,640,000 2,640,000 2,640,000  2,785,000  2,785,000                  
        deposits – workers’ compensation
      156,000,000  147,000,000 174,000,000 171,000,000  175,000,000 170,000,000 204,000,000  197,466,000 180,982,000 211,226,000  179,014,000 166,077,000 190,756,000  208,236,000 203,612,000 193,067,000  181,634,000 177,944,000 188,549,000  170,032,000 187,728,000 170,905,000  152,268,000 165,150,000 160,840,000 154,215,000 142,821,000 157,850,000 150,441,000 143,938,000 134,588,000 130,731,000 139,873,000 136,462,000 121,172,000 110,877,000 115,640,000 113,934,000 93,686,000 90,032,000 84,871,000 81,878,000 75,112,000 69,947,000 67,528,000 64,201,000 57,588,000 56,377,000 55,665,000 52,320,000 46,728,000 45,724,000 53,722,000 51,731,000 47,472,000 46,176,000 58,981,000  53,107,000  60,560,000   65,530,000   41,737,000 35,645,000    42,936,000  55,421,000  48,814,000 60,056,000 52,264,000 
        goodwill and other intangible assets
      13,000,000 13,000,000 13,000,000 13,000,000 13,000,000 13,000,000 13,000,000 13,000,000 13,000,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,707,000 12,708,000 12,711,000 12,714,000 12,717,000 12,720,000 12,723,000 12,726,000 12,729,000 12,732,000 12,741,000 12,762,000 12,783,000 12,838,000 12,963,000 13,088,000 13,213,000 13,338,000 13,463,000 13,588,000 13,780,000 14,006,000 14,232,000 14,457,000 14,808,000 15,152,000 18,036,000 18,434,000 22,275,000 22,775,000 23,274,000 23,775,000 27,131,000 27,565,000 27,999,000 28,433,000 28,867,000 29,280,000 29,541,000 21,251,000 22,467,000 12,840,000 8,380,000 8,487,000 8,584,000 8,690,000 8,492,000 8,595,000 8,855,000 8,948,000 4,751,000 4,785,000 4,820,000 4,854,000 4,888,000 4,922,000 4,957,000 4,991,000 4,985,000 5,018,000     
        deferred income taxes
       22,000,000 3,000,000 22,000,000 10,000,000 34,000,000 19,000,000 15,000,000 6,000,000 20,347,000 10,066,000 10,837,000  15,533,000 748,000   4,892,000 1,653,000 442,000  9,603,000    3,956,000 157,000 556,000 145,000 8,816,000 4,874,000 4,538,000  4,283,000 8,205,000 5,560,000 10,297,000 14,025,000 9,771,000 7,562,000 11,998,000 16,976,000 5,692,000 3,537,000  6,316,000    8,185,000 3,451,000 4,125,000 3,110,000 7,211,000 940,000 2,851,000  3,233,000 1,751,000 108,000  1,267,000 170,000   2,578,000  1,506,000 1,494,000 1,956,000 3,237,000 2,790,000 2,480,000  2,878,000 196,000 3,894,000 2,492,000 1,816,000 3,931,000 2,264,000 3,308,000 2,311,000 184,000 2,171,000  
        other assets
      48,000,000 41,000,000 33,000,000 27,000,000 25,000,000 13,000,000 20,000,000 18,000,000 20,000,000 21,381,000 37,030,000 35,210,000 31,381,000 29,354,000 29,904,000 28,106,000 21,107,000 15,158,000 12,093,000 7,060,000 6,955,000 4,548,000 6,291,000 6,151,000 6,010,000 5,975,000 6,732,000 6,197,000 5,534,000 4,851,000 5,663,000 5,533,000 5,513,000 3,541,000 4,484,000 3,650,000 2,978,000 1,840,000 2,213,000 2,012,000 1,768,000 1,379,000 1,488,000 1,773,000 1,753,000 1,725,000 1,748,000 1,845,000 1,812,000 1,816,000 1,920,000 2,085,000 4,600,000 4,817,000 4,879,000 4,868,000 4,163,000 4,134,000 1,440,000 1,131,000 1,007,000 1,108,000 1,131,000 1,107,000 1,112,000 1,059,000 1,165,000 1,170,000 1,387,000 1,266,000 659,000 739,000 820,000 794,000 954,000 969,000 476,000 504,000 678,000 711,000 970,000 865,000 1,145,000 1,197,000 645,000 679,000 
        total assets
      2,196,000,000 2,203,000,000 2,012,000,000 2,018,000,000 2,143,000,000 2,597,000,000 1,933,000,000 2,095,000,000 2,126,000,000 2,119,659,000 1,996,470,000 1,865,267,000 2,039,973,000 2,039,261,000 1,781,506,000 1,892,906,000 1,940,077,000 1,753,085,000 1,734,052,000 1,728,084,000 1,769,084,000 1,584,276,000 1,523,282,000 1,517,733,000 1,522,408,000 1,394,996,000 1,292,122,000 1,316,995,000 1,350,978,000 1,191,816,000 1,136,677,000 1,051,068,000 1,091,467,000 1,063,695,000 947,372,000 885,888,000 928,528,000 907,174,000 794,886,000 846,495,000 880,510,000 784,912,000 780,093,000 753,048,000 840,621,000 796,670,000 779,358,000 737,256,000 799,389,000 766,560,000 710,469,000 708,318,000 760,711,000 750,200,000 730,434,000 682,057,000 741,630,000 712,259,000 636,470,000 683,542,000 728,646,000 659,845,000 626,207,000 607,750,000 630,452,000 576,470,000 578,097,000 571,719,000 602,962,000 616,840,000 594,685,000 559,877,000 572,976,000 560,651,000 546,419,000 514,859,000 560,940,000 561,515,000 506,467,000 480,844,000 529,662,000 495,439,000 428,100,000 414,519,000 421,824,000 354,638,000 
        liabilities and stockholders' equity
                                                                                            
        accounts payable
      6,000,000 6,000,000 8,000,000 6,000,000 8,000,000 10,000,000 6,000,000 7,000,000 6,000,000 10,693,000 7,207,000 6,807,000 9,491,000 7,732,000 5,466,000 6,034,000 7,826,000 6,412,000 4,250,000 4,063,000 5,841,000 6,203,000 6,016,000 2,885,000 6,240,000 4,565,000 5,373,000 6,548,000 7,854,000 10,622,000 5,316,000 4,123,000 5,517,000 6,447,000 3,070,000 3,132,000 4,542,000 4,189,000 4,034,000 3,546,000 5,213,000 5,381,000 2,613,000 2,383,000 3,061,000 4,674,000 3,255,000 1,821,000 2,591,000 2,678,000 3,311,000 2,605,000 2,202,000 3,660,000 3,088,000 2,873,000 3,437,000 5,085,000 2,659,000 2,424,000 2,628,000 3,309,000 2,194,000 1,327,000 1,869,000 1,857,000 2,103,000 872,000 1,213,000 3,007,000 4,476,000 3,663,000 4,457,000 5,236,000 4,600,000 3,307,000 3,345,000 3,802,000 3,392,000 3,946,000 4,315,000 4,979,000 3,453,000 1,685,000 2,177,000 2,380,000 
        payroll taxes and other payroll deductions payable
      471,000,000 544,000,000 334,000,000 366,000,000 457,000,000 901,000,000 297,000,000 504,000,000 489,000,000 566,373,000 518,061,000 401,682,000 495,585,000 556,085,000 352,129,000 303,645,000 384,767,000 467,892,000 232,862,000 262,975,000 310,519,000 377,960,000 178,052,000 219,492,000 268,245,000 277,248,000 180,617,000 244,694,000 308,062,000 261,166,000 204,086,000 213,432,000 276,573,000 303,247,000 185,456,000 189,940,000 249,847,000 247,766,000 162,076,000 141,213,000 202,355,000 205,393,000 116,257,000 122,875,000 176,667,000 176,341,000 105,026,000 109,164,000 163,985,000 165,604,000 102,288,000 129,682,000 183,511,000 178,534,000 107,932,000 122,590,000 177,991,000 168,652,000 104,204,000 98,210,000 151,563,000 145,096,000 79,402,000 78,103,000 119,042,000 127,597,000 67,818,000 74,469,000 106,938,000 123,666,000 80,270,000 76,116,000 111,127,000 113,929,000 85,533,000 89,641,000 121,298,000 116,926,000 80,489,000 82,491,000 111,419,000 101,293,000 67,977,000 59,917,000 81,875,000 64,471,000 
        accrued worksite employee payroll costs
      818,000,000 764,000,000 774,000,000 716,000,000 718,000,000 730,000,000 650,000,000 627,000,000 622,000,000 559,194,000 559,931,000 523,504,000 525,312,000                                                                          
        accrued health insurance costs
      67,000,000 30,000,000 31,000,000 57,000,000 68,000,000 19,000,000 46,000,000 42,000,000 71,000,000 46,460,000 50,760,000 34,282,000 78,722,000 53,402,000 64,858,000 62,643,000 61,399,000 50,001,000 40,366,000 29,064,000 72,136,000 32,685,000 44,639,000 29,714,000 46,841,000 21,180,000 33,239,000 20,376,000 45,832,000 35,153,000 33,458,000 24,127,000 46,795,000 26,075,000 34,543,000 26,579,000 24,043,000 26,360,000 20,707,000 26,920,000 7,737,000 13,643,000 12,661,000 6,284,000 25,589,000 18,329,000 26,351,000 21,324,000 25,708,000 5,103,000 6,824,000 5,274,000 7,484,000 13,942,000 22,522,000 9,868,000 9,200,000 9,427,000 5,209,000 12,425,000 17,291,000 15,419,000 10,415,000 10,929,000 11,614,000 6,374,000 4,914,000 6,127,000 7,405,000 14,715,000 13,486,000 15,328,000 14,126,000 19,297,000 13,945,000 9,045,000 4,615,000 2,824,000 4,013,000 3,863,000 5,573,000 3,495,000 4,799,000 2,398,000 5,824,000 1,991,000 
        accrued workers’ compensation costs
      82,000,000 84,000,000 81,000,000 79,000,000 76,000,000 71,000,000 70,000,000 67,000,000 64,000,000 60,475,000 55,005,000 51,451,000 51,878,000 53,485,000 57,023,000 58,142,000 53,290,000 50,534,000 51,368,000 49,845,000 49,696,000 48,186,000 47,956,000 48,618,000 52,311,000 52,868,000 48,927,000 47,122,000 47,973,000 45,818,000 45,773,000 45,376,000 43,788,000 42,974,000 44,011,000 43,939,000 44,283,000 44,231,000 43,930,000 43,294,000 42,229,000 39,053,000 45,798,000 50,841,000 47,225,000 45,592,000 59,393,000 54,744,000 53,387,000 52,930,000 52,312,000 50,281,000 49,902,000 49,484,000 48,369,000 45,320,000 47,094,000 46,548,000 45,316,000 42,926,000 42,286,000 42,081,000 54,291,000 54,474,000 53,122,000 37,049,000 36,152,000 37,061,000 36,676,000 38,028,000 37,530,000 36,731,000 36,882,000 37,150,000 38,093,000 37,384,000 37,973,000 39,035,000 36,391,000 33,262,000 31,114,000 30,212,000 27,822,000 24,124,000 21,610,000 19,349,000 
        accrued corporate payroll and commissions
      53,000,000 78,000,000 74,000,000 52,000,000 49,000,000 82,000,000 79,000,000 59,000,000 55,000,000 64,286,000 65,082,000 49,437,000 48,365,000 89,147,000 81,278,000 69,775,000 43,279,000 74,778,000 69,621,000 63,901,000 41,720,000 44,277,000 39,925,000 41,507,000 21,610,000 52,612,000 39,414,000 37,820,000 27,562,000 60,704,000 43,849,000 41,059,000 27,785,000 52,595,000 34,703,000 28,566,000 16,821,000 40,761,000 28,446,000 24,375,000 21,017,000 39,103,000 34,654,000 25,836,000 23,068,000 32,644,000 26,474,000 17,477,000 16,225,000 21,611,000 22,186,000 17,265,000 15,523,000 23,537,000 21,819,000 13,474,000 13,703,000 22,383,000 22,296,000 19,764,000 13,152,000 23,743,000 18,767,000 16,960,000 11,096,000 16,178,000 15,079,000 15,119,000 10,754,000 25,692,000 18,993,000 16,241,000 10,392,000 20,123,000 13,239,000 12,670,000 6,836,000 21,381,000 14,422,000 12,256,000 7,399,000 17,801,000    11,031,000 
        client funds liability and other accrued liabilities
      91,000,000 114,000,000 80,000,000 81,000,000 90,000,000 117,000,000 77,000,000 72,000,000 84,000,000 128,808,000                                                                             
        total current liabilities
      1,588,000,000 1,620,000,000 1,382,000,000 1,357,000,000 1,466,000,000 1,930,000,000 1,233,000,000 1,383,000,000 1,406,000,000 1,436,289,000 1,321,357,000 1,135,684,000 1,302,959,000 1,353,370,000 1,121,248,000 1,246,600,000 1,286,595,000 1,128,573,000 1,004,181,000 1,002,689,000 1,044,351,000 904,924,000 841,070,000 840,563,000 888,458,000 869,045,000 761,212,000 769,848,000 850,389,000 772,332,000 697,258,000 654,791,000 709,629,000 726,481,000 579,341,000 543,370,000 590,947,000 600,958,000 484,865,000 541,547,000 590,427,000 487,711,000 492,064,000 462,763,000 531,745,000 496,451,000 454,535,000 412,630,000 474,892,000 436,687,000 386,681,000 391,790,000 447,459,000 435,759,000 395,956,000 354,447,000 413,446,000 396,226,000 330,250,000 362,318,000 412,431,000 353,609,000 329,919,000 314,213,000 341,950,000 290,594,000 290,340,000 289,025,000 328,082,000 351,207,000 324,982,000 301,637,000 326,461,000 316,231,000 297,414,000 263,295,000 289,318,000 286,678,000 249,472,000 227,780,000 254,452,000 245,326,000 203,091,000 211,134,000 232,842,000 166,809,000 
        accrued workers’ compensation costs, net of current
      104,000,000 102,000,000 107,000,000 113,000,000 122,000,000 135,000,000 140,000,000 146,000,000 155,000,000 162,852,000 170,609,000 179,577,000 181,364,000 179,629,000 174,664,000   192,694,000                                                                     
        long-term debt
      369,000,000 369,000,000 369,000,000 369,000,000 369,000,000 369,000,000 369,000,000 369,000,000 369,000,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 369,400,000 269,400,000 239,400,000 169,400,000 144,400,000 144,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000 104,400,000                                      1,316,000 1,464,000 32,756,000 33,190,000 33,620,000 34,045,000 34,468,000 34,890,000 
        operating lease liabilities, net of current
      61,000,000 66,000,000 67,000,000 67,000,000 67,000,000 66,000,000 66,000,000 55,000,000 56,000,000 57,494,000 51,985,000 50,087,000 51,622,000 55,587,000 55,691,000 58,916,000 62,119,000 64,192,000 65,979,000 69,736,000 71,716,000 64,289,000 64,436,000 60,815,000 61,623,000 58,863,000 60,132,000 54,617,000 50,371,000                                                          
        total noncurrent liabilities
      541,000,000 537,000,000 543,000,000 549,000,000 558,000,000 570,000,000 575,000,000 570,000,000 580,000,000 589,746,000 591,994,000 599,064,000 603,582,000 604,616,000 599,755,000 611,174,000 619,521,000 626,286,000 632,865,000 638,133,000 651,089,000 635,220,000 641,573,000 632,532,000 637,260,000 521,872,000 489,922,000 412,258,000 381,395,000 341,808,000 287,499,000 278,417,000 279,006,000 270,893,000 266,091,000 258,815,000 251,194,000 245,691,000 240,441,000 240,081,000 234,731,000 124,746,000 112,088,000 98,938,000 95,775,000 96,123,000 76,815,000 77,256,000 77,181,000 76,601,000 75,049,000 75,051,000 73,864,000 73,536,000 74,231,000 75,078,000 71,709,000 70,826,000 67,768,000 70,131,000 67,948,000 65,841,000 64,530,000 63,452,000 63,472,000 62,716,000 60,961,000 62,658,000 60,383,000 57,154,000 51,736,000 50,803,000 49,191,000 45,745,000 46,262,000 47,327,000 46,963,000 46,392,000 42,894,000 42,084,000 70,535,000 67,684,000 65,614,000 65,620,000 62,893,000 61,300,000 
        commitments and contingencies
                                                                                            
        common stock
      1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000 555,000  277,000 277,000 277,000  277,000 277,000 277,000  308,000 308,000 308,000  308,000 308,000 308,000  308,000 308,000 308,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  309,000 309,000 309,000  
        additional paid-in capital
      244,000,000 257,000,000 244,000,000 228,000,000 209,000,000 222,000,000 208,000,000 191,000,000 172,000,000 185,031,000 173,307,000 157,526,000 142,002,000 151,144,000 139,370,000 125,622,000 110,053,000 109,179,000 104,587,000 94,396,000 81,329,000 95,528,000 74,598,000 54,783,000 46,327,000 48,141,000 46,401,000 41,009,000 33,833,000 36,752,000 32,047,000 27,363,000 22,648,000 25,337,000 20,439,000 15,462,000 11,817,000 9,240,000 7,047,000 4,428,000 2,061,000 144,701,000 143,951,000 142,681,000 140,963,000 137,769,000 136,972,000 136,505,000 135,838,000 135,653,000 134,781,000 134,349,000 133,898,000 133,207,000 136,688,000 136,762,000 136,670,000 135,871,000 136,111,000 136,193,000 136,217,000 135,607,000 136,004,000 136,584,000 136,957,000 138,551,000 138,360,000 138,751,000 138,984,000 139,415,000 138,847,000 138,977,000 138,780,000 138,640,000 138,681,000 138,457,000 137,687,000 135,942,000 135,108,000 133,857,000 128,045,000 119,573,000 112,490,000 104,568,000 102,918,000 101,623,000 
        treasury stock
      -826,000,000 -850,000,000 -852,000,000 -853,000,000 -855,000,000 -864,000,000 -853,000,000 -838,000,000 -826,000,000 -830,524,000 -830,988,000 -744,788,000 -735,219,000 -725,532,000 -716,046,000 -709,810,000 -681,625,000 -665,089,000 -645,993,000 -635,627,000 -628,391,000 -626,984,000 -620,638,000 -592,313,000  -544,102,000    -357,569,000  -263,764,000 -257,898,000 -256,363,000 -247,956,000 -248,266,000 -234,225,000 -227,152,000 -211,662,000 -205,018,000 -207,798,000 -205,325,000 -200,043,000 -176,817,000 -151,599,000 -148,465,000 -151,091,000 -147,706,000 -150,039,000 -138,688,000 -141,401,000 -142,468,000 -144,998,000 -133,950,000 -138,784,000 -139,467,000 -134,198,000 -134,647,000 -134,697,000 -121,964,000 -122,031,000 -124,464,000 -129,111,000 -127,498,000 -131,160,000 -135,712,000 -138,021,000 -142,662,000 -146,361,000 -147,952,000 -131,454,000 -133,572,000 -135,368,000 -123,600,000 -108,949,000 -98,091,000 -66,259,000 -55,405,000 -58,073,000 -50,300,000 -42,823,000 -45,614,000 -52,054,000 -60,019,000 -64,144,000 -63,925,000 
        retained earnings
      648,000,000 638,000,000 694,000,000 736,000,000 764,000,000 738,000,000 769,000,000 788,000,000 793,000,000 738,553,000 740,245,000 717,226,000 726,094,000 655,190,000 636,624,000 618,765,000 604,978,000 553,590,000 637,857,000 627,938,000 620,151,000 575,028,000 586,124,000 581,613,000 545,295,000 499,473,000 490,949,000 477,155,000 460,903,000 397,947,000 381,505,000 353,706,000 337,527,000 296,797,000 329,180,000 316,230,000 308,518,000 278,163,000 273,918,000 265,180,000 260,812,000 232,771,000 231,720,000 225,175,000 223,424,000 214,481,000 261,795,000 258,222,000 261,183,000 255,970,000 255,028,000 249,291,000 250,148,000 241,324,000 261,964,000 254,870,000 253,635,000 243,650,000 236,677,000 236,496,000 233,737,000 228,922,000 224,512,000 220,651,000 218,937,000 220,009,000 226,148,000 223,638,000 221,565,000 216,707,000 210,265,000 201,720,000 193,589,000 183,321,000 172,924,000 163,703,000 153,048,000 147,730,000 136,887,000 127,286,000 119,309,000 111,245,000 102,213,000 96,902,000 91,432,000 88,649,000 
        total stockholders' equity
      67,000,000 46,000,000 87,000,000 112,000,000 119,000,000 97,000,000 125,000,000 142,000,000 140,000,000 93,624,000 83,119,000 130,519,000                                                                           
        total liabilities and stockholders’ equity
      2,196,000,000 2,203,000,000 2,012,000,000 2,018,000,000 2,143,000,000 2,597,000,000 1,933,000,000 2,095,000,000 2,126,000,000 2,119,659,000 1,996,470,000 1,865,267,000 2,039,973,000 2,039,261,000 1,781,506,000 1,892,906,000 1,940,077,000 1,753,085,000 1,734,052,000 1,728,084,000 1,769,084,000 1,584,276,000 1,523,282,000 1,517,733,000 1,522,408,000 1,394,996,000 1,292,122,000 1,316,995,000 1,350,978,000 1,191,816,000 1,136,677,000 1,051,068,000 1,091,467,000 1,063,695,000 947,372,000 885,888,000 928,528,000 907,174,000 794,886,000 846,495,000 880,510,000 784,912,000 780,093,000 753,048,000 840,621,000 796,670,000 779,358,000 737,256,000 799,389,000 766,560,000 710,469,000 708,318,000 760,711,000 750,200,000 730,434,000 682,057,000 741,630,000 712,259,000 636,470,000 683,542,000 728,646,000 659,845,000 626,207,000 607,750,000 630,452,000 576,470,000 578,097,000 571,719,000 602,962,000 616,840,000 594,685,000 559,877,000 572,976,000 560,651,000 546,419,000 514,859,000 560,940,000 561,515,000 506,467,000 480,844,000 529,662,000 495,439,000 428,100,000 414,519,000 421,824,000 354,638,000 
        deposits and prepaid health insurance
       165,000,000    195,000,000    215,070,000    213,270,000    201,927,000    203,231,000    193,013,000                                                             
        stockholders' equity:
                                                                                            
        preferred stock
                                                                                            
        income taxes payable
            8,000,000 5,000,000 15,000,000  428,000  13,813,000  455,000  3,784,000      6,286,000 28,537,000 4,718,000      61,000 6,984,000     8,668,000    13,527,000  4,976,000 1,652,000 280,000      57,000 39,000 4,774,000  3,987,000 1,429,000     798,000  682,000              913,000        5,735,000  
        accumulated other comprehensive income, net of tax
               9,000    -82,000    -9,000    5,000    12,000    -9,000    -5,000    -3,000     5,000  5,000 3,000 24,000 41,000 26,000 29,000 23,000 -3,000 32,000 16,000 70,000 58,000 59,000 24,000 52,000 59,000 35,000 21,000 44,000 39,000 -13,000 3,000      3,000  5,000          -182,000 -200,000  
        other current assets
                56,037,000 60,144,000 79,860,000 61,728,000 51,473,000 71,186,000 80,282,000 53,312,000 53,293,000 47,070,000 53,718,000 39,461,000 33,772,000 34,651,000 40,425,000 43,493,000 26,438,000 29,794,000 36,616,000 27,721,000 24,274,000 22,640,000 28,385,000 26,991,000 19,260,000 17,993,000 23,095,000 19,526,000 18,426,000 18,554,000 28,448,000 17,135,000 15,279,000 15,522,000 21,080,000 17,649,000 12,851,000 13,076,000 19,228,000 12,053,000 10,097,000 9,384,000 13,759,000 9,651,000 8,133,000 8,133,000 11,529,000 11,488,000 10,967,000 9,745,000 11,943,000 8,528,000 8,614,000 8,106,000 10,547,000 6,317,000 10,598,000 9,302,000 10,401,000 6,735,000 9,471,000 8,455,000 7,869,000 6,273,000 8,257,000 6,978,000 6,838,000 4,573,000 6,934,000 6,006,000 5,096,000 4,664,000 6,671,000 4,439,000 3,959,000 3,981,000 
        other accrued liabilities
                64,883,000 68,521,000 79,793,000 80,122,000 65,053,000 83,599,000 86,627,000 69,303,000 70,824,000 62,960,000 61,105,000 60,777,000 46,400,000 60,742,000 51,729,000 58,713,000 42,185,000 39,756,000 49,244,000 28,890,000 24,600,000 24,094,000 27,697,000 27,741,000 20,856,000 22,658,000 25,555,000 22,437,000 23,170,000 24,823,000 30,693,000 20,250,000 23,139,000 24,801,000 25,347,000 22,444,000 23,008,000 19,460,000 25,685,000 14,960,000 15,561,000 14,415,000 15,348,000 12,478,000 13,975,000 14,008,000 14,092,000 13,814,000 19,778,000 15,493,000 17,663,000 14,264,000 14,035,000 12,575,000 10,700,000 8,401,000 9,351,000 8,657,000 11,554,000 9,495,000 9,783,000 8,922,000 7,826,000 8,395,000 8,349,000 7,746,000 7,886,000 7,309,000 8,840,000 7,414,000 7,699,000 7,453,000 20,209,000 18,093,000 15,574,000 6,430,000 
        prepaid insurance
                  50,665,000 11,706,000 30,368,000 52,939,000 22,716,000 11,285,000 19,657,000 17,143,000 57,670,000 10,164,000 34,759,000 23,494,000 45,525,000 10,418,000 22,161,000 24,469,000 24,928,000 8,411,000 13,755,000 17,648,000 35,679,000 10,782,000 18,978,000 27,070,000 15,097,000 15,041,000 17,596,000 26,545,000 11,554,000 7,417,000 20,177,000 16,459,000 36,660,000 21,301,000 30,613,000 24,813,000 34,793,000 10,638,000 17,349,000 17,742,000 16,887,000 15,620,000 23,739,000 18,152,000 24,662,000 21,300,000 15,182,000 24,523,000 24,385,000 24,978,000 15,769,000 21,919,000 10,903,000 14,484,000 11,370,000 18,342,000 18,985,000 28,911,000 23,220,000 21,758,000 22,404,000 22,395,000 13,409,000 12,009,000 3,958,000 10,660,000 10,049,000 5,100,000 9,235,000 9,218,000 17,351,000 11,582,000 7,495,000 14,428,000 
        total stockholders’ equity
                  133,432,000 81,275,000 60,503,000 35,132,000 33,961,000 -1,774,000 97,006,000 87,262,000 73,644,000 44,132,000 40,639,000 44,638,000  4,079,000 40,988,000 134,889,000 119,194,000 77,676,000 151,920,000 117,860,000 102,832,000 66,321,000 101,940,000 83,703,000 86,387,000 60,525,000 69,580,000 64,867,000 55,352,000 172,455,000 175,941,000 191,347,000 213,101,000 204,096,000 248,008,000 247,370,000 247,316,000 253,272,000 248,739,000 241,477,000 239,388,000 240,905,000 260,247,000 252,532,000 256,475,000 245,207,000 238,452,000 251,093,000 248,267,000 240,395,000 231,758,000 230,085,000 225,030,000 223,160,000 226,796,000 220,036,000 214,497,000 208,479,000 217,967,000 207,437,000 197,324,000 198,675,000 202,743,000 204,237,000 224,659,000 228,445,000 214,101,000 210,980,000 204,675,000 182,429,000 159,395,000 137,765,000 126,089,000 126,529,000 
        right-of-use “rou” leased assets
                   56,532,000    62,830,000    60,663,000                                                                 
        liabilities and stockholders’ equity
                                                                                            
        accrued worksite employee payroll cost
                   513,397,000 494,986,000 662,762,000 645,623,000 409,653,000 534,890,000 529,881,000 503,334,000 334,836,000 471,796,000 409,068,000 436,764,000 401,859,000 411,457,000 373,532,000 363,862,000 329,979,000 340,115,000 295,596,000 281,474,000 267,402,000 256,702,000 228,556,000 217,188,000 215,214,000 202,502,000 277,376,000 267,656,000 161,917,000 251,966,000 228,091,000 223,564,000 192,396,000 211,028,000 188,640,000 187,311,000 173,801,000 184,142,000 172,229,000 168,715,000 150,070,000 174,264,000 144,885,000 144,840,000 130,317,000 130,788,000 171,076,000 166,260,000 109,697,000 163,453,000 152,687,000 150,156,000 93,138,000 151,868,000 145,009,000 150,240,000 129,954,000 156,350,000 140,201,000 137,643,000 110,406,000 130,669,000 102,896,000 105,857,000 94,818,000 101,352,000 83,986,000 85,221,000 78,393,000 74,833,000 103,243,000 98,385,000 59,277,000 
        stockholders’ equity
                                                                                            
        accrued workers’ compensation cost, net of current
                     173,686,000 182,888,000  191,193,000 192,703,000 190,336,000  196,247,000 197,501,000 197,633,000  190,390,000 188,241,000 186,624,000                                                          
        other accrued liabilities, net of current
                        6,293,000 6,294,000 6,294,000 6,292,000 8,689,000 4,104,000                                                               
        stockholders’ equity:
                                                                                            
        right-of-use leased assets
                             57,421,000 58,461,000 56,886,000 58,185,000 54,189,000 50,259,000                                                          
        deposits
                                   172,674,000                                                         
        current assets:
                                                                                            
        accounts receivable, net:
                                                                                            
        trade
                                    3,402,000 4,066,000 3,923,000 12,292,000 3,396,000 2,775,000 4,806,000 13,107,000 2,918,000 3,977,000 2,393,000 7,691,000 3,450,000 3,185,000 3,740,000 12,010,000 3,730,000 3,459,000 2,933,000 7,453,000 2,062,000 2,743,000 2,465,000 6,931,000 2,255,000 2,765,000 3,601,000 7,893,000 2,069,000 1,601,000 1,332,000 1,194,000 1,443,000 824,000 603,000 2,899,000 669,000 1,219,000 1,158,000 4,908,000 2,684,000 2,594,000 2,069,000 3,299,000 2,339,000 2,298,000 3,787,000 8,157,000 2,816,000 2,128,000 1,857,000 5,225,000 899,000 1,004,000 857,000 610,000 
        unbilled
                                    392,122,000 344,685,000 329,672,000 318,431,000 295,667,000 255,184,000 255,734,000 254,999,000 235,588,000 236,422,000 229,646,000 190,715,000 265,197,000 258,940,000 252,931,000 160,154,000 237,748,000 216,602,000 216,360,000 199,628,000 214,210,000 194,985,000 196,141,000 181,040,000 198,197,000 166,030,000 167,785,000 158,508,000 154,256,000 128,302,000 148,194,000 134,187,000 141,996,000 166,445,000 161,465,000 106,601,000 159,216,000 160,974,000 168,098,000 116,173,000 170,376,000 153,955,000 154,999,000 125,318,000 138,325,000 117,583,000 120,103,000 112,432,000 113,795,000 93,212,000 98,244,000 91,258,000 85,880,000 76,011,000 76,788,000 65,149,000 
        other
                                    4,477,000 3,003,000 2,953,000 3,258,000 3,228,000 3,610,000 3,595,000 2,178,000 2,903,000 4,613,000 3,329,000 2,259,000 4,774,000 3,506,000 3,107,000 2,952,000 3,336,000 2,834,000 3,106,000 2,928,000 2,690,000 2,676,000 2,594,000 2,415,000 2,656,000 7,633,000 4,575,000 4,532,000 6,013,000 5,186,000 6,536,000 6,726,000 8,459,000 9,773,000 9,911,000 13,092,000 7,963,000 7,197,000 2,674,000 4,012,000 2,754,000 3,109,000 2,431,000 6,217,000 2,243,000 2,127,000 2,123,000 2,134,000 1,969,000 1,637,000 2,024,000 1,928,000 1,937,000 1,154,000 1,550,000 1,451,000 
        accounts receivable, net: - sum
                                    400,001,000                                                        
        noncurrent assets:
                                                                                            
        other assets:
                                                                                            
        total other assets
                                    189,834,000 202,253,000 193,394,000 189,101,000 182,593,000 194,198,000 190,379,000 186,591,000 173,485,000 167,343,000 179,802,000 181,105,000 153,606,000 143,312,000 147,913,000 142,816,000 122,942,000 119,729,000 117,419,000 114,828,000 112,007,000 106,807,000 107,402,000 104,793,000 101,598,000 100,650,000 99,667,000 96,527,000 88,675,000 87,775,000 95,910,000 85,730,000 82,710,000 71,763,000 80,113,000 77,075,000 74,641,000 71,546,000 82,224,000 77,881,000 71,530,000 94,772,000 84,156,000 69,299,000 59,322,000 53,279,000 72,795,000 65,316,000 61,653,000 61,799,000 83,070,000 73,258,000 62,464,000 61,930,000 72,620,000 71,272,000 
        total noncurrent assets
                                    290,515,000                                                        
        current liabilities:
                                                                                            
        noncurrent liabilities:
                                                                                            
        property and equipment:
                                                                                            
        land
                                     6,215,000 6,215,000 6,215,000 6,215,000 6,215,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 5,214,000 4,806,000 4,115,000 4,115,000 4,115,000 4,115,000 4,115,000 3,653,000 3,653,000 3,653,000 3,653,000 3,653,000 3,653,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 3,260,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 2,920,000 
        buildings and improvements
                                     98,332,000 96,972,000 95,615,000 95,162,000 94,318,000 94,038,000 90,151,000 83,306,000 77,715,000 73,919,000 70,273,000 73,931,000 72,315,000 71,008,000 70,471,000 68,471,000 68,453,000 67,817,000 67,939,000 68,363,000 68,695,000 69,012,000 68,583,000 69,868,000 69,255,000 68,727,000 67,496,000 66,673,000 65,999,000 65,109,000 64,953,000 64,731,000 64,806,000 64,759,000 64,692,000 64,756,000 64,581,000 63,912,000 63,016,000 62,640,000 62,679,000 62,051,000 61,620,000 61,306,000 60,742,000 60,229,000 60,120,000 59,592,000 59,490,000 58,780,000 58,264,000 58,522,000 57,204,000 57,038,000 57,005,000 
        computer hardware and software
                                     108,665,000 106,847,000 105,060,000 101,761,000 101,003,000 98,660,000 97,311,000 94,901,000 93,458,000 92,291,000 90,654,000 88,325,000 89,525,000 89,367,000 89,204,000 87,631,000 87,192,000 85,181,000 85,241,000 84,684,000 84,102,000 82,801,000 81,140,000 78,836,000 79,460,000 77,287,000 76,105,000 76,174,000 74,911,000 72,277,000 67,714,000 66,874,000 66,413,000 64,326,000 65,980,000 67,951,000 67,138,000 67,666,000 67,198,000 66,294,000 65,866,000 66,697,000 65,518,000 65,738,000 63,824,000 61,818,000 61,375,000 61,411,000 61,711,000 59,819,000 58,194,000 54,721,000 53,266,000 51,317,000 50,765,000 
        software development costs
                                     65,348,000 62,385,000 60,568,000 58,819,000 56,584,000 54,030,000 51,956,000 50,320,000 48,634,000 47,121,000 45,762,000 44,525,000 43,439,000 41,987,000 41,314,000 40,628,000 39,847,000 39,161,000 38,522,000 38,137,000 37,184,000 36,284,000 35,866,000 35,431,000 34,347,000 33,519,000 32,699,000 29,778,000 28,804,000 28,113,000 27,482,000 26,854,000 26,204,000 25,794,000 25,372,000 24,939,000 24,181,000 23,580,000 23,162,000 23,068,000 22,405,000 21,972,000 21,624,000 21,830,000 21,393,000 20,902,000 20,588,000 20,069,000 19,463,000 19,207,000 18,435,000 18,779,000 18,677,000 18,622,000 18,622,000 
        furniture, fixtures and other
                                     44,603,000 43,393,000 42,891,000 42,509,000 41,826,000 40,685,000 38,483,000 38,256,000 40,195,000 39,972,000 39,919,000 38,800,000 38,704,000 38,641,000                                          
        property and equipment: - sum
                                     323,163,000 315,812,000 310,349,000 304,466,000 299,946,000 292,627,000 283,115,000 271,997,000 265,216,000 258,517,000 251,822,000 250,795,000 249,197,000 246,217,000 280,686,000 274,678,000 273,023,000 269,234,000 268,175,000 268,296,000 266,803,000 264,803,000 262,300,000 260,262,000 259,083,000 255,259,000 251,952,000 247,208,000 239,944,000 235,202,000 230,097,000 228,198,000 227,096,000 224,465,000 226,327,000 227,584,000 225,854,000 225,498,000 223,491,000 221,426,000 209,036,000 208,042,000 205,595,000 205,441,000 201,663,000 198,465,000 197,631,000 196,094,000 195,614,000 191,916,000 188,927,000 168,865,000 166,115,000 163,959,000 163,449,000 
        accumulated depreciation and amortization
                                     -224,135,000 -218,752,000 -214,690,000 -210,726,000 -207,288,000 -204,954,000 -202,854,000 -199,260,000 -197,545,000 -194,202,000 -190,063,000 -192,772,000 -191,055,000 -187,102,000 -196,341,000 -191,913,000 -189,771,000 -185,301,000 -181,760,000 -179,252,000 -175,593,000 -172,653,000 -168,358,000 -167,335,000 -165,592,000 -162,662,000 -159,008,000 -158,756,000 -158,738,000 -155,735,000 -154,070,000 -151,844,000 -149,584,000 -146,191,000 -145,153,000 -144,032,000 -140,349,000 -137,762,000 -134,152,000 -132,161,000 -130,590,000 -128,976,000 -127,654,000 -125,950,000 -122,395,000 -119,192,000 -116,511,000 -114,233,000 -111,344,000 -108,913,000 -105,307,000     
        total property and equipment
                                     99,028,000 97,060,000 95,659,000 93,740,000 92,658,000 87,673,000 80,261,000 72,737,000 67,671,000 64,315,000 61,759,000 58,023,000 58,142,000 59,115,000 84,345,000 82,765,000 83,252,000 83,933,000 86,415,000 89,044,000 91,210,000 92,150,000 93,942,000 92,927,000 93,491,000 92,597,000 92,944,000 88,452,000 81,206,000 79,467,000 76,027,000 76,354,000 77,512,000 78,274,000 81,174,000 83,552,000 85,505,000 87,736,000 89,339,000 89,265,000 78,446,000 79,066,000 77,941,000 79,491,000 79,268,000 79,273,000 81,120,000 81,861,000 84,270,000 83,003,000 83,620,000 64,680,000 65,339,000 66,651,000 69,057,000 
        preferred stock, par value 0.01 per share...
                                                                                            
        shares authorized – 20,000
                                                                                            
        shares issued and outstanding – none
                                                                                            
        common stock, par value 0.01 per share...
                                                                                            
        shares authorized – 60,000
                                                                                            
        shares issued – 55,489 at december 31, 2017 and 2016
                                       555,000                                                     
        income tax payable
                                               2,971,000    4,031,000        4,054,000             3,055,000  1,435,000 4,157,000 217,000 993,000 888,000  2,369,000            
        shares issued – 27,744 and 30,758 at december 31, 2016 and 2015, respectively
                                           277,000                                                 
        aircraft
                                                   35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,879,000 35,866,000 35,866,000 35,806,000 31,441,000 31,442,000 31,524,000 31,524,000 31,524,000 31,524,000 31,524,000 31,524,000 31,523,000 31,523,000 31,548,000 31,548,000 22,032,000 21,909,000 21,909,000             
        shares issued – 30,758 at december 31, 2015 and 2014
                                               308,000                                             
        assets held for sale
                                                 12,182,000 13,495,000                                          
        furniture and fixtures
                                                   38,604,000 36,855,000 36,438,000 36,390,000 36,479,000 37,118,000 36,828,000 36,712,000 36,717,000 36,595,000 36,489,000 36,207,000 36,133,000 35,124,000 35,136,000 35,001,000 35,164,000 34,955,000 34,889,000 34,802,000 35,499,000 35,154,000 35,171,000 35,557,000 35,307,000 34,956,000 33,134,000 32,493,000 32,004,000 31,556,000 30,693,000 30,505,000 30,537,000 29,964,000 29,892,000 29,030,000 28,748,000 28,568,000 28,484,000 28,424,000 28,412,000 
        shares issued – 30,758 at december 31, 2014 and 2013
                                                   308,000                                         
        shares issued – 30,758 at december 31, 2013 and 2012
                                                       308,000                                     
        shares issued – 30,758 and 30,839 at december 31, 2012 and 2011, respectively
                                                           308,000                                 
        shares issued – 30,839 at december 31, 2011 and 2010
                                                               309,000                             
        shares issued – 30,839 at december 31, 2010 and 2009
                                                                   309,000                         
        accrued workers’ compensation claims and other costs
                                                                    40,971,000 39,073,000 37,143,000                      
        deposits — health insurance
                                                                       2,785,000  2,785,000  2,585,000    2,811,000    2,461,000         
        deposits — workers’ compensation
                                                                       55,744,000  49,901,000  56,435,000 50,431,000  58,674,000 51,909,000   53,720,000 46,429,000 42,857,000  64,029,000  49,365,000    
        shares authorized — 20,000
                                                                                            
        shares issued and outstanding — none
                                                                                            
        shares authorized — 60,000
                                                                                            
        shares issued — 30,839 at december 31, 2009 and 2008
                                                                       309,000                     
        income tax receivable
                                                                         768,000                   
        capital lease obligations
                                                                         205,000 373,000  59,000 205,000  537,000             
        accounts receivable:
                                                                                            
        current portion of capital lease obligations
                                                                           537,000 640,000 652,000 640,000 629,000 617,000 606,000 595,000          
        shares authorized - 20,000
                                                                                            
        shares authorized - 60,000
                                                                                            
        shares issued - 30,839 at december 31, 2008 and 2007, respectively
                                                                           309,000                 
        deposits — healthcare
                                                                            2,585,000  3,061,000    2,711,000  2,161,000  2,086,000  954,000    
        deposits – healthcare
                                                                             2,705,000   2,811,000 2,811,000    2,161,000  954,000  919,000 17,500,000 18,329,000 
        capital leases obligations
                                                                              373,000              
        accumulated other comprehensive loss, net of tax
                                                                              14,000  -222,000 -141,000 -126,000 -131,000 -130,000 -172,000 -165,000 -153,000 -151,000   -127,000 
        shares authorized — 20,000 shares issued and outstanding — none
                                                                                            
        shares authorized — 60,000 shares issued — 30,839 at december 31, 2007 and 2006, respectively
                                                                               309,000             
        vehicles and aircraft
                                                                                22,091,000 22,091,000 22,091,000 22,091,000 22,138,000 22,138,000 22,160,000 22,366,000 5,355,000 5,564,000 5,638,000 5,725,000 
        capital leases obligations, net of current portion
                                                                                618,000 857,000 1,013,000          
        current portion of long-term debt and capital leases
                                                                                   583,000         
        long-term debt and capital leases
                                                                                   1,166,000         
        shares issued — 30,839 at december 31, 2006 and 2005, respectively
                                                                                   309,000         
        deferred compensation expense
                                                                                       -2,931,000 -3,412,000 -3,813,000 -4,226,000  
        current portion of long-term debt
                                                                                    573,000 562,000 1,712,000 1,700,000 1,687,000 1,674,000 1,662,000 1,649,000 
        shares issued – 30,839 at december 31, 2005 and 2004, respectively
                                                                                       309,000     
        accumulated depreciation
                                                                                        -104,185,000 -100,776,000 -97,308,000 -94,392,000 
        shares issued and outstanding - none
                                                                                            
        shares issued - 30,839 at december 31, 2004 and 2003, respectively
                                                                                           309,000 
      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 
                                                                                             
          cash flows from operating activities
                                                                                             
          net income
        33,000,000 -33,000,000 -20,000,000 -5,000,000 51,000,000 -9,000,000 3,000,000 18,000,000 79,000,000 19,561,000 44,332,000 12,894,000 94,595,000 38,198,000 37,669,000 33,599,000 69,884,000 9,708,000 27,296,000 25,154,000 61,922,000 4,285,000 20,009,000 51,851,000 62,092,000 20,395,000 25,859,000 28,556,000 76,289,000 24,655,000 36,207,000 24,560,000 49,991,000 15,554,000 19,202,000 14,018,000 35,628,000 9,520,000 14,065,000 9,713,000 32,693,000 6,339,000 11,950,000 7,314,000 13,787,000 8,164,000 8,385,000 1,891,000 9,564,000 5,289,000 10,082,000 3,488,000 13,173,000 9,445,000 11,452,000 5,621,000 13,884,000 10,844,000 4,099,000 6,741,000 8,786,000 7,789,000 7,234,000 5,118,000 2,299,000 -2,809,000 5,832,000 5,385,000 8,166,000 9,708,000 11,929,000 10,987,000 13,156,000 13,301,000 12,153,000 13,645,000 8,393,000 13,355,000 12,113,000 10,497,000 10,541,000 10,926,000 7,183,000 7,284,000 4,590,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                             
          depreciation and amortization
        11,000,000 12,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 10,805,000 10,666,000 10,740,000 10,497,000 10,293,000 10,083,000 10,100,000 10,184,000 10,832,000 9,917,000 9,751,000 8,047,000 7,860,000 7,819,000 7,908,000 7,602,000 7,794,000 7,330,000 6,908,000 6,691,000 6,507,000 5,642,000 5,480,000 5,213,000 4,827,000 4,696,000 4,405,000 4,254,000 4,150,000 4,047,000 4,176,000 4,271,000 4,203,000 4,487,000 4,590,000 5,285,000 5,560,000 5,288,000 5,279,000 5,260,000 5,341,000 5,315,000 5,242,000 5,135,000 4,847,000 4,684,000 4,440,000 4,212,000 3,883,000 3,789,000 3,598,000 3,948,000 3,684,000 3,059,000 4,132,000 4,075,000 3,999,000 4,159,000 4,225,000 4,178,000 4,156,000 3,932,000 3,796,000 3,657,000 5,302,000 3,823,000 3,707,000 3,716,000 3,764,000 3,833,000 4,043,000 3,891,000 4,158,000 3,771,000 3,737,000 3,816,000 
          stock-based compensation
        13,000,000 14,000,000 16,000,000 20,000,000 11,000,000 14,000,000 17,000,000 20,000,000 10,000,000 11,320,000 15,210,000 15,356,000 11,110,000 11,262,000 13,341,000 15,631,000 9,846,000 4,658,000 10,362,000 13,781,000 11,822,000 22,035,000 20,864,000 10,694,000 6,552,000 3,180,000 6,517,000 8,256,000 6,040,000 5,769,000 5,769,000 5,752,000 3,135,000 7,955,000 6,584,000 5,303,000 4,503,000 4,116,000 4,191,000 4,761,000 3,575,000 3,171,000 3,710,000 4,041,000 2,423,000 2,707,000 2,701,000 3,245,000 2,400,000 2,752,000 2,749,000 3,292,000 2,310,000 2,429,000 2,429,000 2,801,000 2,155,000 2,146,000 2,109,000 2,556,000 1,790,000 1,978,000 1,970,000 2,410,000 1,768,000 2,183,000 2,184,000 2,911,000 2,786,000 2,340,000 2,337,000 2,908,000 2,385,000 1,885,000 1,885,000 2,435,000 1,308,000 1,043,000 1,011,000 1,068,000 289,000 314,000 360,000 367,000 1,038,000 
          deferred income taxes
        29,000,000 -19,000,000 19,000,000 -12,000,000 24,000,000 -15,000,000 -4,000,000 -9,000,000 14,000,000 -10,281,000 771,000 -12,033,000 16,729,000 -14,785,000 -9,920,000 4,058,000 10,006,000 -3,239,000 -1,211,000 -13,785,000 22,946,000 -12,404,000 2,089,000 -7,892,000 12,560,000 -3,799,000 399,000 -411,000 8,671,000 -3,942,000 -336,000 -7,371,000 7,116,000 3,922,000 -2,645,000 4,737,000 3,728,000 -4,254,000 -2,209,000 4,436,000 4,978,000 -6,829,000 -2,654,000 -10,844,000 5,594,000 -6,032,000 -476,000 -1,612,000 6,387,000 -5,438,000 869,000 -971,000 3,252,000 -8,002,000 1,258,000 -4,340,000 5,341,000 50,000 -1,475,000 -633,000 2,012,000 -513,000 -2,881,000 2,017,000 2,556,000 -1,573,000 -3,119,000 -19,000 314,000 1,401,000 1,031,000 782,000 2,149,000 3,998,000 -2,702,000 4,320,000 -1,246,000 272,000 3,474,000 -818,000 1,276,000 -5,902,000 2,048,000 2,056,000 -3,424,000 
          changes in operating assets and liabilities:
                                                                                             
          accounts receivable
        -54,000,000 68,000,000 -51,000,000 -9,000,000 -5,000,000 -64,000,000 -25,000,000 -16,000,000 -30,000,000 -37,183,000 -51,630,000 2,248,000 15,451,000 -64,064,000 127,157,000 -15,634,000 -156,917,000 66,197,000 16,802,000 -35,061,000 -168,498,000 135,966,000 -54,777,000 46,810,000 -54,966,000 18,111,000 -59,755,000 -2,838,000 -20,674,000 -622,000 -48,247,000 -15,206,000 -2,567,000 -31,690,000 -40,722,000 2,566,000 6,149,000 -28,875,000 3,603,000 -9,644,000 -34,703,000 72,756,000 -7,790,000 -5,853,000 -84,662,000 69,698,000 -21,919,000 -496,000 -12,390,000 8,953,000 -18,558,000 796,000 -10,814,000 12,722,000 -26,680,000 -467,000 -5,028,000 -8,595,000 -27,249,000 20,973,000 -13,955,000 9,791,000 25,785,000 -5,063,000 -49,387,000 45,256,000 1,542,000 2,540,000 -46,837,000 50,721,000 -16,156,000 -159,000 -24,665,000 8,073,000 -20,899,000 4,005,000 -3,290,000 -4,143,000 -21,603,000 5,148,000 -3,714,000 -9,868,000 -10,506,000 873,000 -12,160,000 
          prepaid insurance and related assets
        -61,000,000 11,000,000 24,000,000 15,000,000 -31,000,000 6,000,000 3,000,000 3,000,000 -30,000,000 14,247,000 1,487,000                                                                           
          other current assets
        -19,000,000   17,000,000 -16,000,000 -1,000,000 4,000,000 16,000,000 -27,000,000 -14,799,000 18,000 12,088,000 -11,522,000 -7,045,000 19,713,000 9,096,000 -26,970,000 -19,000 -6,223,000 6,648,000 -14,257,000 -5,689,000 879,000 5,774,000 3,068,000 -17,055,000 3,356,000 6,820,000 -8,893,000 -3,447,000 -1,634,000 5,753,000 -1,402,000 -7,731,000 -1,267,000 5,076,000 -3,543,000 -1,100,000 128,000 9,894,000 -11,313,000 -1,879,000 266,000 5,559,000 -3,432,000 -4,798,000 225,000 6,152,000 -7,175,000 -1,956,000 -713,000 4,375,000 -4,108,000 -1,518,000 3,396,000 -41,000 -523,000 -1,122,000 2,198,000 -3,415,000 86,000 -438,000 2,441,000 -4,230,000 3,286,000 -301,000 1,099,000 -3,666,000 2,736,000 -1,016,000 -586,000 -1,596,000 1,811,000 -1,279,000 -140,000 -2,265,000 2,361,000 -928,000 -910,000 -432,000 1,983,000 -2,216,000 -330,000 772,000 
          other assets and rou assets
        -4,000,000 -3,000,000 2,000,000 -8,000,000 12,000,000 2,000,000 6,000,000 5,000,000 19,783,000 2,112,000 -28,000 1,656,000 3,742,000 2,339,000 -2,736,000 -1,588,000 203,000 -1,254,000 3,899,000 1,508,000 4,863,000 3,883,000 3,576,000 3,403,000                                                             
          accounts payable
         -2,000,000 2,000,000 -2,000,000 -2,000,000 4,000,000 -1,000,000 1,000,000 -5,000,000 3,486,000 400,000 -2,684,000 1,759,000 2,266,000 -568,000 -1,792,000 1,414,000 2,162,000 187,000 -1,778,000 -362,000 187,000 3,131,000 -3,355,000 1,675,000 -808,000 -1,175,000 -1,306,000 -2,768,000 5,306,000 1,193,000 -1,394,000 -930,000 3,377,000 -62,000 -1,410,000 353,000 155,000 488,000 -1,667,000 -168,000 2,768,000 230,000 -678,000 -1,613,000 1,419,000 1,434,000 -770,000 -87,000 -633,000 706,000 403,000 -1,458,000 572,000 215,000 -564,000 -1,648,000 2,426,000 235,000 -204,000 -681,000 1,115,000 551,000 -542,000 12,000 -246,000 1,231,000 -341,000 -1,794,000 -1,469,000 813,000 -794,000 -779,000 636,000 1,293,000 -38,000 -457,000 410,000 -554,000 -369,000 -664,000 1,526,000 1,768,000 -492,000 -953,000 
          payroll taxes and other payroll deductions payable
        -73,000,000 210,000,000 -32,000,000 -91,000,000 -444,000,000 604,000,000 -207,000,000 15,000,000 -77,000,000 48,312,000 116,379,000 -93,903,000 -60,500,000 203,956,000 48,484,000 -81,122,000 -83,125,000 235,030,000 -30,113,000 -47,544,000 -67,441,000 199,908,000 -41,440,000 -48,753,000 -9,003,000 96,631,000 -64,077,000 -63,368,000 46,896,000 57,080,000 -9,346,000 -63,141,000 -26,674,000 117,791,000 -4,484,000 -59,907,000 2,081,000 85,690,000 20,863,000 -61,142,000 -3,038,000 89,136,000 -6,618,000 -53,792,000 326,000 71,315,000 -4,138,000 -54,821,000 -1,619,000 63,316,000 -27,394,000 -53,829,000 4,977,000 70,626,000 -14,642,000 -55,401,000 9,339,000 64,448,000 5,994,000 -53,353,000 6,467,000 65,694,000 1,299,000 -40,939,000 -8,555,000 59,779,000 -6,651,000 -32,469,000 -16,728,000 43,396,000 4,154,000 -35,011,000 -2,802,000 28,396,000 -4,108,000 -31,657,000 4,372,000 36,437,000 -2,002,000 -28,928,000 10,126,000 33,316,000 8,060,000 -21,958,000 17,404,000 
          accrued worksite employee payroll costs
        54,000,000 -10,000,000 58,000,000 -2,000,000 -12,000,000 80,000,000 23,000,000 5,000,000 63,000,000 -737,000 36,427,000 -1,808,000 11,915,000  -167,776,000                                                                       
          accrued health insurance costs
        37,000,000 -1,000,000 -26,000,000 -11,000,000 49,000,000   -29,000,000 25,000,000 -4,300,000 16,478,000 -44,440,000 25,320,000 -11,456,000 2,215,000 1,244,000 11,398,000 9,635,000 11,302,000 -43,072,000 39,451,000 -11,954,000 14,925,000 -17,127,000 25,661,000 -12,059,000 12,863,000 -25,456,000 10,679,000 1,695,000 9,331,000 -22,668,000 20,720,000 -8,468,000 7,964,000 2,536,000 -2,317,000 5,653,000 -6,213,000 19,183,000 -5,906,000 982,000 6,377,000 -19,305,000 7,260,000 -8,022,000 5,027,000 -4,384,000 20,605,000 -1,721,000 1,550,000 -2,210,000 -6,458,000 -8,580,000 12,654,000 668,000 -227,000 4,218,000 -7,216,000 -4,865,000 1,871,000 5,004,000 -514,000 -685,000 5,240,000 1,460,000 -1,213,000 -1,278,000 -7,310,000 1,229,000 -2,813,000 12,305,000 -15,303,000 1,988,000 2,023,000 -1,721,000 1,791,000 -1,986,000 2,153,000 -1,823,000 188,000 -1,973,000 1,277,000 -4,641,000 3,833,000 
          accrued workers’ compensation costs
         -2,000,000 -4,000,000 -6,000,000 -8,000,000 -4,000,000 -3,000,000 -6,000,000 -4,000,000 -2,287,000 -5,414,000 -2,214,000 128,000 1,427,000 -141,000 -4,350,000 -7,050,000 667,000 13,000 2,516,000 -3,393,000 -779,000 -1,916,000 -3,824,000 3,467,000 7,160,000 3,954,000 766,000 1,367,000 4,358,000 9,479,000 3,832,000 6,094,000 3,765,000 7,348,000 7,277,000 5,555,000 5,551,000 996,000 6,415,000 8,761,000 5,913,000 8,107,000 6,779,000 5,360,000 5,238,000 4,695,000 3,035,000 2,837,000 4,987,000 2,031,000 379,000 418,000 2,187,000 2,849,000 1,835,000 547,000 2,778,000 1,163,000 2,521,000 2,329,000 2,549,000 1,715,000 3,282,000 1,202,000 2,642,000 -1,988,000 2,691,000 1,101,000  1,294,000 1,157,000 2,607,000  -53,000 -681,000 -498,000  2,703,000 4,145,000 3,960,000  4,545,000 5,581,000 5,347,000 
          accrued corporate payroll, commissions and other accrued liabilities
        -32,000,000 17,000,000 -3,000,000 -37,000,000   -5,000,000 -15,000,000 -1,863,000 10,656,000 -7,722,000 -45,691,000 7,457,000 -12,061,000 18,396,000 -18,971,000 -7,712,000 8,731,000 19,118,000 -5,421,000 11,475,000 -12,965,000 27,258,000 -46,531,000 29,189,000 48,000 778,000 -23,656,000 20,828,000 3,296,000 9,671,000 -24,854,000 24,777,000 4,335,000 8,848,000 -20,822,000 12,693,000 2,084,000 -2,162,000 -9,465,000 2,936,000 8,518,000 124,000 -7,473,000 5,606,000 12,545,000 -4,974,000 5,340,000 -3,294,000 5,853,000 1,975,000 -3,978,000 198,000 9,670,000 -2,153,000 -5,362,000 -5,527,000 7,193,000 5,109,000 -8,646,000 4,705,000 1,345,000 6,289,000 -2,783,000 602,000 621,000 1,468,000 -12,879,000 5,571,000 3,613,000 7,365,000 -10,300,000 6,931,000 1,171,000 5,694,000 -13,968,000         
          income taxes payable/receivable
        -1,000,000 6,000,000 -24,000,000 -3,000,000 -26,000,000 10,000,000 3,000,000 -10,000,000 12,000,000 2,153,000 12,016,000 -25,401,000 6,864,000 6,494,000 6,139,000 -9,468,000 16,197,000 -6,829,000 -456,000 -1,677,000 -5,345,000 -4,392,000 -22,251,000 23,819,000 8,409,000 7,993,000 -228,000 -12,879,000 498,000 864,000 -6,923,000 9,679,000 7,129,000 -8,946,000 6,000,000 -15,546,000 13,617,000 -865,000 2,606,000 -20,217,000 10,556,000 -1,307,000 3,091,000 1,139,000 -3,983,000 6,611,000 4,985,000 1,315,000 -8,872,000 -524,000 -42,000 -4,797,000 538,000 -137,000 2,439,000 1,923,000 2,167,000 -2,076,000 -83,000 -1,925,000 2,487,000 -2,517,000 4,005,000 -11,000 -1,428,000 -5,757,000 3,798,000 -2,562,000 -3,406,000 3,930,000 -1,672,000 -11,000 4,922,000 -6,287,000 2,417,000 -2,327,000 5,472,000 -1,425,000 597,000 -6,876,000 4,511,000 12,034,000 1,055,000 -5,912,000 6,224,000 
          total adjustments
        -100,000,000 288,000,000 9,000,000 -74,000,000 -494,000,000 628,000,000 -153,000,000 2,000,000 -48,000,000 38,656,000 165,576,000 -121,883,000 -55,243,000 187,463,000 61,576,000 -69,661,000 -11,037,000 195,604,000 20,552,000 -20,130,000 -59,951,000 235,494,000 -28,296,000 39,223,000 -38,305,000 137,682,000 -51,211,000 -73,825,000 41,408,000 89,496,000 16,833,000 -30,840,000 -26,422,000 118,471,000 38,149,000 -44,630,000 8,033,000 88,354,000 -39,932,000 -44,254,000 62,514,000 84,420,000 33,853,000 -40,843,000 -51,737,000 134,531,000 20,009,000 -40,158,000 -673,000 63,752,000 -23,318,000 -42,101,000 4,299,000 56,318,000 16,324,000 -41,618,000 19,372,000 49,835,000 -45,177,000 -11,519,000 50,302,000 23,400,000 50,625,000 -23,754,000 6,129,000 45,817,000 10,751,000 -15,200,000 -57,111,000 78,812,000 25,104,000 -23,089,000 -8,817,000 16,157,000 6,342,000 -932,000 5,925,000 34,945,000 -798,000 1,050,000 6,750,000 50,296,000 -24,889,000 10,545,000 45,738,000 
          net cash from operating activities
        -67,000,000 255,000,000 -11,000,000 -79,000,000 -443,000,000 619,000,000 -150,000,000 20,000,000 31,000,000 58,217,000 209,908,000 -108,989,000 39,352,000 225,661,000 99,245,000 -36,062,000 58,847,000 205,312,000 47,848,000 5,024,000 1,971,000 239,779,000 -8,287,000 91,074,000 23,787,000 158,077,000 -25,352,000 -45,269,000 117,697,000 114,151,000 53,040,000 -6,280,000 23,569,000 134,025,000 57,351,000 -30,612,000 43,661,000 97,874,000 -25,867,000 -34,541,000 95,207,000 90,759,000 45,803,000 -33,529,000 -37,950,000 142,695,000 28,394,000 -38,267,000 8,891,000 69,041,000 -13,236,000 -38,613,000 17,472,000 65,763,000 27,776,000 -35,997,000 33,256,000 60,679,000 -41,078,000 -4,778,000 59,088,000 31,189,000 57,859,000 -18,636,000 8,428,000 43,008,000 16,583,000 -9,815,000 -48,945,000 88,520,000 37,033,000 -12,102,000 4,339,000 29,458,000 18,495,000 12,713,000 14,318,000 48,300,000 11,315,000 11,547,000 17,291,000 61,222,000 -17,706,000 17,829,000 50,328,000 
          capital expenditures
          free cash flows
        -67,000,000 255,000,000 -11,000,000 -79,000,000 -443,000,000 619,000,000 -150,000,000 20,000,000 31,000,000 58,217,000 209,908,000 -108,989,000 39,352,000 225,661,000 99,245,000 -36,062,000 58,847,000 205,312,000 47,848,000 5,024,000 1,971,000 239,779,000 -8,287,000 91,074,000 23,787,000 158,077,000 -25,352,000 -45,269,000 117,697,000 114,151,000 53,040,000 -6,280,000 23,569,000 134,025,000 57,351,000 -30,612,000 43,661,000 97,874,000 -25,867,000 -34,541,000 95,207,000 90,759,000 45,803,000 -33,529,000 -37,950,000 142,695,000 28,394,000 -38,267,000 8,891,000 69,041,000 -13,236,000 -38,613,000 17,472,000 65,763,000 27,776,000 -35,997,000 33,256,000 60,679,000 -41,078,000 -4,778,000 59,088,000 31,189,000 57,859,000 -18,636,000 8,428,000 43,008,000 16,583,000 -9,815,000 -48,945,000 88,520,000 37,033,000 -12,102,000 4,339,000 29,458,000 18,495,000 12,713,000 14,318,000 48,300,000 11,315,000 11,547,000 17,291,000 61,222,000 -17,706,000 17,829,000 50,328,000 
          cash flows from investing activities
                                                                                             
          marketable securities:
                                                                                             
          purchases
        -6,000,000 -1,000,000 -15,000,000 -4,000,000 -6,000,000 -6,000,000 -5,000,000 -6,000,000 -6,000,000 -8,387,000 -7,271,000 -18,119,000 -14,206,000 -11,130,000 -18,350,000 -10,304,000 -6,964,000 -16,789,000 -10,551,000 -20,277,000 -10,585,000 -8,617,000 -16,569,000 -16,749,000 -8,689,000 -19,222,000 -30,300,000 -25,071,000 -35,538,000 -33,133,000 -42,905,000 -11,337,000 -512,000 -415,000 -418,000 -208,000 -711,000 -103,000 -636,000 -207,000 -103,000 -1,339,000 -3,840,000 -1,415,000 -3,964,000 -33,110,000 -23,446,000 -5,354,000 -7,668,000 -5,176,000 -3,938,000 -5,596,000 -40,046,000            -22,078,000         -1,900,000 -14,800,000 -24,325,000 -46,618,000 -14,076,000 -7,300,000 -43,294,000 -6,116,000 -28,505,000 -25,562,000 -1,083,000 -669,000 
          proceeds from maturities
        2,000,000 1,000,000 5,000,000 6,000,000 6,000,000 6,000,000 5,000,000 6,000,000 6,000,000 6,530,000 10,545,000 9,450,000 12,110,000 12,740,000 14,550,000 11,905,000 5,760,000 17,445,000 12,260,000 19,760,000 10,580,000 7,775,000 14,235,000 3,625,000 24,000,000 22,900,000 30,370,000 17,750,000 37,360,000 9,975,000 1,525,000 600,000 525,000 380,000 376,000 101,000 704,000 50,000 675,000 200,000 790,000 -7,276,000 13,018,000 2,231,000 2,620,000 3,735,000 9,815,000 8,349,000 6,595,000 5,727,000 5,238,000 3,235,000 1,001,000            1,242,000     1,500,000   4,700,000 11,988,000 28,475,000 41,714,000 10,210,000 6,086,000 26,450,000 380,000 1,179,000    
          proceeds from dispositions
        4,000,000        19,244,000             22,514,000 300,000 5,499,000 10,860,000       -1,000 1,000 7,268,000 8,386,000 2,606,000 6,053,000 824,000 46,250,000    1,000 3,461,000 426,000 4,138,000                225,000 9,951,000 19,698,000 41,097,000     50,000 16,142,000 6,336,000 1,301,000 305,000 
          property and equipment purchases
        -6,000,000 -9,000,000 -9,000,000 -7,000,000 -6,000,000 -13,000,000 -14,000,000 -6,000,000 -5,000,000 -17,591,000 -8,509,000                                                                           
          net cash from investing activities
        -6,000,000 -9,000,000 -11,000,000 -5,000,000 -6,000,000 -13,000,000 -14,000,000 -6,000,000 -5,000,000 -19,448,000 14,009,000 -7,346,000 -8,945,000 -12,271,000 -11,205,000 -2,756,000 -5,890,000 -8,597,000 -1,186,000 -9,153,000 -12,077,000 -30,188,000 -31,638,000 -36,481,000 -314,000 5,874,000 -18,391,000 -18,920,000 1,713,000 -36,816,000 -38,014,000 -12,738,000 -6,572,000 -6,576,000 -5,758,000 -9,342,000 -11,574,000 -12,703,000 -8,615,000 -7,774,000 3,075,000 -7,881,000 19,754,000 3,442,000 -2,943,000 8,905,000 -7,399,000 -1,260,000 -3,452,000 -1,672,000 2,120,000 -5,732,000 -37,750,000 27,520,000 1,286,000 -5,720,000 -5,228,000 -11,662,000 -35,030,000 -1,492,000 -13,513,000 -3,210,000 -11,785,000 -21,939,000 -21,648,000 -7,553,000 -2,104,000 -2,612,000 -2,248,000 -4,112,000 -3,205,000 15,239,000 36,349,000 10,959,000 -6,823,000 485,000 -6,734,000 -6,876,000 -2,661,000 -21,938,000 -8,905,000 -38,946,000 -22,066,000 -2,715,000 -1,734,000 
          cash flows from financing activities
                                                                                             
          purchase of treasury stock
        -4,000,000 -19,000,000 -11,000,000 -15,000,000 -14,000,000 -23,000,000 -46,000 -86,100,000 -10,751,000 -34,622,000 -9,865,000 -6,615,000 -29,364,000 -27,441,000 -19,955,000 -11,234,000 -8,850,000 -29,686,000 -8,199,000 -29,986,000 -27,000 -61,203,000 -49,375,000 -114,872,000 -9,759,000 -29,037,000 -97,091,000 -9,000 -7,662,000 -8,565,000 -11,563,000 -1,644,000 -16,211,000 -9,317,000 -17,756,000 -9,123,000 -22,000 -4,768,000 -8,556,000 -27,187,000 -25,651,000 -5,719,000 -6,029,000 -856,000 -13,884,000 -99,000 -2,008,000 -1,624,000 -13,498,000 -3,000 -2,029,000 -8,488,000 -3,253,000 -2,620,000 -15,820,000 -3,550,000 -3,089,000 -5,465,000 -506,000 -1,881,000 -35,000 -491,000 -1,498,000 -18,467,000 -3,085,000 -1,492,000 -15,038,000 -19,176,000 -13,372,000 -35,266,000 -12,707,000 -394,000 -9,883,000 -12,825,000 -1,072,000 -2,924,000 -4,399,000 -4,877,000 
          dividends paid
        -23,000,000 -22,000,000 -23,000,000 -22,000,000 -23,000,000 -22,000,000 -23,000,000 -23,000,000 -21,000,000 -21,250,000 -21,338,000 -21,735,000 -19,896,000 -19,726,000 -19,769,000 -19,853,000 -17,244,000 -93,981,000 -17,370,000 -17,367,000 -15,461,000 -15,347,000 -15,448,000 -15,517,000 -15,557,000 -11,845,000 -12,037,000 -12,354,000 -12,386,000 -8,238,000 -8,384,000 -8,384,000 -8,402,000 -47,937,000 -6,252,000 -6,307,000 -5,272,000 -5,275,000 -5,327,000 -5,345,000 -4,652,000 -5,341,000 -5,405,000 -5,563,000 -4,844,000 -55,478,000 -4,812,000 -4,852,000 -4,351,000 -4,347,000 -4,345,000 -4,345,000 -4,349,000 -30,085,000 -4,358,000 -4,386,000 -3,899,000 -3,871,000 -3,918,000 -3,982,000 -3,971,000 -3,379,000 -3,373,000 -3,404,000 -3,371,000 -3,330,000 -3,322,000 -3,312,000 -3,308,000 -3,283,000 -3,384,000 -2,856,000 -2,888,000 -2,904,000 -2,932,000 -2,990,000 -3,075,000 -2,512,000 -2,512,000 -2,520,000 -2,477,000 -1,894,000 -1,872,000 -1,814,000 -1,807,000 
          client funds liability and other
        -19,000,000 33,000,000 -7,000,000 -7,000,000 23,000,000 2,000,000 -7,000,000 -39,000,000                                                                             
          net cash from financing activities
        -46,000,000 11,000,000 -23,000,000 -29,000,000 -49,000,000 -10,000,000 -36,000,000 -44,000,000 -83,000,000 39,744,000 -109,766,000 -38,143,000 -46,847,000 -17,734,000 -31,784,000 -47,746,000 -43,886,000 -112,917,000 -27,819,000 -24,941,000 -42,396,000 -22,147,000 -43,379,000 -13,660,000 25,603,000 -30,123,000 -53,457,000 5,565,000 -40,338,000 -64,685,000 -7,890,000 -15,287,000 -16,616,000 -59,123,000 -7,549,000 -22,006,000 -14,271,000 -22,687,000 -13,541,000 -4,960,000 -48,972,000 -14,425,000 -32,200,000 -30,773,000 -6,975,000 -54,602,000 -10,426,000 -5,102,000 -17,676,000 -3,456,000 -5,535,000 -4,594,000 -16,834,000 -30,957,000 -7,434,000 -12,241,000 -4,688,000 -7,719,000 -19,173,000 -6,344,000 -2,599,000 -1,080,000 -7,526,000 -2,512,000 -1,396,000 -3,036,000 -1,403,000 -2,566,000 -4,414,000 -21,688,000 -2,995,000 -3,811,000 -17,170,000 -19,550,000 -15,679,000 -35,266,000 -14,999,000 -193,000 -10,182,000 -31,825,000 5,136,000 6,313,000 8,349,000 1,197,000 -6,404,000 
          net decrease in cash, cash equivalents, restricted cash, funds held for clients, and deposits – workers’ compensation
        -119,000,000  -45,000,000 -113,000,000 -498,000,000                                                                                 
          cash, cash equivalents, restricted cash, funds held for clients, and deposits - workers’ compensation beginning of period
        945,000,000  1,344,000,000                                                                                 
          cash, cash equivalents, restricted cash, funds held for clients, and deposits - workers’ compensation end of period
        826,000,000  -45,000,000 -113,000,000 846,000,000                                                                                 
          supplemental cash flow information:
                                                                                             
          rou assets obtained in exchange for lease obligations
        1,000,000  5,000,000                                                                                   
          net increase in cash, cash equivalents, restricted cash, funds held for clients, and deposits – workers’ compensation
                                                                                             
          cash, cash equivalents, restricted cash, funds held for clients, and deposits – workers’ compensation beginning of year
                                                                                             
          cash, cash equivalents, restricted cash, funds held for clients, and deposits – workers’ compensation end of year
                                                                                             
          net decrease in cash, cash equivalents, restricted cash and funds held for clients
              -200,000,000 -30,000,000 -57,000,000  114,151,000                                                                           
          cash, cash equivalents, restricted cash and funds held for clients beginning of period
              1,035,000,000  1,013,919,000                                                                         
          cash, cash equivalents, restricted cash and funds held for clients end of period
              -200,000,000 -30,000,000 978,000,000  114,151,000 -154,478,000 997,479,000                                                                         
          net increase in cash, cash equivalents, restricted cash and funds held for clients
                    -16,440,000                                                                         
          cash, cash equivalents, restricted cash and funds held for clients beginning of year
                                                                                             
          cash, cash equivalents, restricted cash and funds held for clients end of year
                                                                                             
          other
                  -2,328,000 -5,657,000 7,671,000 11,857,000 -5,400,000 1,471,000 799,000 1,019,000 785,000 1,276,000 2,751,000 1,399,000 2,055,000 1,884,000 2,363,000 1,097,000 3,452,000 2,678,000 1,085,000 644,000 503,000 759,000 351,000 377,000 347,000 512,000 318,000 344,000 311,000 407,000 311,000 292,000 328,000 398,000 285,000 292,000 318,000 360,000 318,000 265,000 285,000 347,000 230,000 247,000 -1,088,000 359,000 260,000 -1,420,000 -202,000 270,000 216,000 -239,000 324,000 366,000 371,000 -2,713,000 1,954,000 1,237,000 392,000 169,000 35,000 143,000 193,000 126,000 147,000 152,000 214,000 183,000 168,000 184,000 204,000 50,000 52,000 45,000 51,000 
          prepaid insurance
                    -38,959,000 18,662,000 22,571,000 -30,223,000 -11,431,000 8,372,000 -2,514,000 40,527,000 -47,506,000 24,595,000 -11,265,000 22,031,000 -35,107,000 11,743,000 2,308,000 459,000 -16,517,000 5,344,000 3,893,000 18,031,000 -24,897,000 8,196,000 8,092,000 -11,973,000 -56,000 2,555,000 8,949,000 -14,991,000 -4,137,000 12,760,000 -3,718,000 20,201,000 -15,359,000 9,312,000 -5,800,000 9,980,000 -24,155,000 6,711,000 393,000 -855,000 -1,267,000 8,119,000 -5,587,000 6,510,000 -3,362,000 -6,118,000 9,341,000 -138,000 593,000 -9,209,000 6,150,000 -11,016,000 3,581,000 -3,114,000 6,972,000 643,000 9,926,000 -5,691,000 -491,000 -10,457,000 10,123,000 -5,623,000 1,478,000 -1,900,000 6,702,000 185,000 -6,952,000 4,248,000 1,873,000 8,330,000 -4,645,000 -2,872,000 -4,067,000 
          property and equipment:
                                                                                             
          amortization of marketable securities
                                        20,000    19,000 19,000 19,000 21,000 31,000 103,000 104,000 313,000 316,000 417,000 468,000 496,000 510,000 522,000 568,000 588,000 441,000 468,000 548,000 622,000 657,000 637,000 550,000 478,000 507,000                         
          accrued worksite employee payroll expense
                        235,970,000 -125,237,000 5,009,000 26,547,000 168,498,000 -136,960,000 62,728,000 -27,696,000 34,905,000 -9,598,000 37,925,000 9,670,000 33,883,000 -10,136,000 44,519,000 14,122,000 14,072,000 10,700,000 28,146,000 11,368,000 1,974,000 12,712,000 -74,874,000 9,720,000 105,739,000 -90,049,000 23,875,000 4,527,000 31,168,000 -18,632,000 22,388,000 1,329,000 13,510,000 -10,341,000 11,913,000 3,514,000 18,645,000 -24,194,000 29,379,000 45,000 14,523,000 -471,000 -40,288,000 4,816,000 56,563,000 -53,756,000 10,766,000 2,531,000 57,018,000 -58,730,000 6,859,000 -5,231,000 20,286,000 -26,396,000 16,149,000 2,558,000 27,237,000 -20,263,000 27,773,000 -2,961,000 11,039,000 -6,534,000 17,366,000 -1,235,000 6,828,000 3,560,000 -28,410,000 4,858,000 39,108,000 
          borrowings under long-term debt agreement
                                             124,400,000                                             
          cash, cash equivalents, restricted cash and funds held for clients at beginning of year
                                                                                             
          cash, cash equivalents, restricted cash and funds held for clients at end of year
                                                                                             
          net decrease in cash, cash equivalents and restricted cash
                                      7,136,000                                                       
          cash, cash equivalents and restricted cash beginning of period
                       807,768,000  786,699,000  592,550,000  535,474,000                                                        
          cash, cash equivalents and restricted cash end of period
                       -86,564,000 816,839,000  18,843,000 -29,070,000 734,197,000  -83,304,000 40,933,000 641,626,000  -97,200,000 -58,624,000 614,546,000  7,136,000                                                       
          net increase in cash, cash equivalents and restricted cash
                        9,071,000  18,843,000 -29,070,000 -52,502,000  -83,304,000 40,933,000 49,076,000   -58,624,000 79,072,000    381,000                                                     
          net increase in cash and cash equivalents
                                           -61,960,000 17,816,000   -47,275,000 49,310,000            -37,112,000   -53,958,000 23,340,000   -12,614,000 42,976,000     32,419,000 13,076,000 -14,993,000 -55,607,000 62,720,000 30,833,000 -674,000 23,518,000    -7,415,000 41,231,000 -1,528,000 -42,216,000 13,522,000 28,589,000 -31,423,000 16,311,000 42,190,000 
          cash, cash equivalents and restricted cash at beginning of year
                                                                                             
          cash, cash equivalents and restricted cash at end of year
                                                                                             
          borrowings under revolving line of credit
                              100,000,000  70,000,000                                                           
          other assets
                                 -314,000 -676,000 -1,224,000 -809,000 -245,000 197,000 6,640,000 -8,597,000 -10,695,000 14,209,000 -8,646,000 -7,641,000 -8,988,000 -4,057,000 7,908,000 -3,804,000 -15,242,000 -9,963,000 4,778,000 -1,642,000 -20,252,000 -3,633,000 -5,138,000 -2,990,000 -6,654,000 -5,708,000 -2,589,000 -3,109,000 -6,551,000 -1,382,000 -1,421,000 -3,570,000 -5,528,000 -1,033,000 7,874,000 -1,965,000 -4,170,000 -1,418,000 12,908,000 -3,140,000 -2,956,000 -3,197,000 11,296,000 -4,445,000 -5,628,000 15,298,000 -7,421,000 -6,971,000 -10,011,000 -6,077,000 19,481,000 -7,513,000 -3,663,000 146,000 21,045,000 -9,842,000 -6,153,000 -564,000 28,610,000 -7,878,000 
          repurchase of common stock
                                             -144,263,000                                             
          principal repayments
                                             -20,000,000                                             
          proceeds from the exercise of stock options
                                                374,000 2,000 24,000 90,000 163,000 285,000 305,000 740,000 118,000 1,187,000 18,000 241,000 803,000 75,000 598,000 749,000 2,534,000 1,678,000 988,000 1,032,000 3,485,000     32,000 1,810,000 633,000 716,000 1,428,000 536,000   1,667,000 1,433,000 4,830,000 8,903,000 8,459,000 13,412,000 7,679,000 529,000 
          supplemental schedule of cash, cash equivalents and restricted cash
                                                                                             
          cash and cash equivalents
                                                                                             
          restricted cash
                                         611,000 -45,000 755,000 179,000 -858,000 -553,000 -945,000 -2,863,000 5,638,000 5,831,000 -3,735,000 -1,112,000 13,182,000 -3,781,000 -1,279,000 -234,000 -1,611,000 -2,850,000 -93,000 -225,000 -1,080,000 -1,489,000 488,000 -331,000 -1,925,000 -1,481,000 -524,000 397,000 -1,543,000 -1,917,000 -1,508,000 200,000 -1,014,000 -146,000 -173,000 1,363,000 -777,000 -1,369,000 479,000 519,000 877,000 -403,000 851,000 762,000 -2,547,000 -3,634,000 -2,108,000 -1,536,000 -1,850,000 -3,592,000 -1,998,000 -1,629,000 
          deposits - workers’ compensation
                                                                                             
          cash, cash equivalents and restricted cash beginning of year
                                                                                             
          cash, cash equivalents and restricted cash end of year
                                                                                             
          supplemental disclosures of cash flow information
                                                                                             
          income taxes
                                                                                             
          interest expense
                                                                                             
          cash flows from operating activities:
                                                                                             
          cash flows from investing activities:
                                                                                             
          cash flows from financing activities:
                                                                                             
          cash, cash equivalents and restricted cash at beginning of period
                                        395,397,000                                                     
          cash, cash equivalents and restricted cash at end of period
                                        395,778,000                                                     
          impairment charges and other
                                                 -640,000 1,313,000 9,807,000                                         
          proceeds from sale of aircraft
                                                                                            
          income tax benefit from stock-based compensation
                                                 -820,000 64,000 43,000 2,929,000 582,000 73,000 156,000 78,000 440,000 228,000 288,000 665,000 859,000 23,000 33,000 1,401,000 117,000 169,000 169,000 1,711,000         23,000 1,787,000   1,045,000 170,000   1,003,000 749,000       
          cash and cash equivalents at beginning of year
                                                                                             
          cash and cash equivalents at end of year
                                                                                             
          supplemental disclosures of cash flow information:
                                                                                             
          net decrease in cash and cash equivalents
                                                  33,357,000 -60,860,000 -47,868,000  10,569,000 -44,629,000 -12,237,000  -16,651,000            38,548,000 -43,087,000 -14,616,000          -4,007,000           
          cash and cash equivalents at beginning of period
                                          286,034,000  269,538,000  276,456,000  225,755,000  264,544,000  211,208,000  234,829,000  227,085,000  252,190,000  135,793,000  148,416,000  137,407,000  81,740,000 
          cash and cash equivalents at end of period
                                          44,044,000 -61,960,000 303,850,000  -48,023,000 -47,275,000 318,848,000  33,357,000 -60,860,000 228,588,000  10,569,000 -44,629,000 213,518,000  -16,651,000 -48,939,000 227,432,000  21,628,000 -53,958,000 234,548,000  -95,281,000 -12,614,000 277,805,000  38,548,000 -43,087,000 212,469,000  13,076,000 -14,993,000 196,583,000  30,833,000 -674,000 159,311,000  -4,007,000 -22,068,000 141,001,000  -1,528,000 -42,216,000 150,929,000  -31,423,000 16,311,000 123,930,000 
          supplemental disclosures:
                                                                                             
          cash paid for income taxes
                                                                             304,000 5,581,000 5,812,000 281,000 11,414,000 6,679,000 3,930,000 478,000 7,043,000 2,014,000 3,092,000 333,000 813,000 1,493,000 8,379,000 149,000 
          property and equipment
                                                   -3,427,000 -2,423,000  -4,398,000 -4,255,000 -2,379,000  -2,641,000 -3,797,000 -2,843,000  -3,665,000 -4,896,000 -3,435,000  -15,000,000 -5,078,000 -3,326,000  -1,919,000 -1,618,000 -812,000  -2,104,000 -1,892,000 -2,473,000                 
          impairment charges
                                                                                             
          changes in operating assets and liabilities, net of acquisitions:
                                                                                             
          investments and acquisitions, net of cash acquired
                                                                                             
          impairment charge
                                                                                           
          loss on exchange of assets
                                                                 12,000                            
          cash exchanged for acquisitions
                                                              -1,200,000  -1,675,000 -650,000 -10,800,000                         
          investments and acquisitions
                                                                                             
          changes in operating assets and liabilities, net of effects from acquisitions:
                                                                                             
          marketable securities purchases
                                                              -8,767,000 -13,375,000 -1,443,000  -29,704,000 -8,749,000 -5,154,000  -8,988,000                       
          marketable securities proceeds from dispositions
                                                                  -13,480,000 16,022,000 1,365,000  333,000                       
          marketable securities proceeds from maturities
                                                                850,000  24,829,000 -3,037,000 4,402,000  6,027,000                       
          principal repayments on capital lease obligations
                                                                              -158,000 -156,000 -153,000             
          cash exchanged for acquisitions, net of cash acquired
                                                                                             
          amortization of premium (discounts) on marketable securities
                                                                                             
          cash exchanged for acquisitions, net of cash received
                                                                                             
          cash exchanged for acquisition
                                                                                           
          cash received for note receivable
                                                                                             
          acquisition of usdatalink
                                                                                             
          changes in operating assets and liabilities, net of effect of acquisition:
                                                                                             
          accrued workers’ compensations costs
                                                                                             
          cash received (exchanged) for note receivable
                                                                                             
          principal repayments on long-term debt and capital lease obligations
                                                                                 -69,000 -228,000 -145,000 -141,000 -140,000 -137,000 -32,442,000 -422,000 -417,000 -412,000 -411,000 -409,000 
          cash paid for interest
                                                                                 24,000 26,000 29,000 32,000 35,000 37,000 360,000 634,000 615,000 572,000 544,000 512,000 
          acquisition of hrtools.com
                                                                                             
          proceeds from sale of common stock to the employee stock purchase plan proceeds from the exercise of stock options
                                                                                    710,000         
          proceeds from sale of common stock to the employee stock purchase plan
                                                                                             
          other accrued liabilities
                                                                                      3,592,000 4,420,000 -10,004,000  2,117,000 2,518,000 -1,887,000 
          cash exchanged for note receivable
                                                                                          -16,000   
          bad debt expense
                                                                                         173,000 -41,000 153,000 175,000 
          loss on disposition of assets
                                                                                             
          proceeds from the sale of other companies
                                                                                             
          loss on the disposition of assets
                                                                                          84,000 -5,000 19,000 
          proceeds from sale of common stock to the administaff employee stock purchase plan
                                                                                          93,000 97,000 109,000 
          write-off of investments
                                                                                             
          accrued corporate payroll and other accrued liabilities
                                                                                             
          proceeds from the sale of / (investments in) other companies
                                                                                             
          proceeds from the exercise of common stock purchase warrants
                                                                                             
          long-term debt and short-term borrowings:
                                                                                             
          borrowings under long-term debt agreements
                                                                                             
          net borrowings under revolving line of credit
                                                                                             
          deferred financing costs
                                                                                             
          collection of (loans) to employees