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v3.3.1.900

SELECTED QUARTERLY FINANCIAL DATA (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 25, 2015 | Sep. 25, 2015 | Jun. 26, 2015 | Mar. 27, 2015 | Dec. 26, 2014 | Sep. 26, 2014 | Jun. 27, 2014 | Mar. 28, 2014 | Dec. 25, 2015 | Dec. 26, 2014 | Dec. 27, 2013
Selected Quarterly Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue from services | $ 810,733 | $ 683,918 | $ 627,714 | $ 573,315 | $ 691,390 | $ 633,365 | $ 453,227 | $ 396,063 | $ 2,695,680 | $ 2,174,045 | $ 1,668,929
Cost of services | 625,729 | 515,051 | 475,748 | 443,479 | 533,152 | 473,766 | 333,644 | 296,504 | 2,060,007 | 1,637,066 | 1,226,626
Gross profit | 185,004 | 168,867 | 151,966 | 129,836 | 158,238 | 159,599 | 119,583 | 99,559 | 635,673 | 536,979 | 442,303
Selling, general and administrative expenses | 141,419 | 125,117 | 117,859 | 111,593 | 117,123 | 120,318 | 96,354 | 91,982 | 495,988 | 425,777 | 362,248
Depreciation and amortization | 10,428 | 10,498 | 10,397 | 10,520 | 9,347 | 9,719 | 5,247 | 5,161 | 41,843 | 29,474 | 20,472
Income from operations | 33,157 | 33,252 | 23,710 | 7,723 | 31,768 | 29,562 | 17,982 | 2,416 | 97,842 | 81,728 | 59,583
Interest and other income | (1,180) | (933) | (881) | (1,166) | (1,431) | (1,140) | (322) | (263) | (4,160) | (3,156) | (1,248)
Interest and other income | 887 | 567 | 679 | 632 | 1,162 | 731 | 772 | 607 | 2,765 | 3,272 | 2,602
Interest expense, net | (293) | (366) | (202) | (534) | (269) | (409) | 450 | 344 | (1,395) | 116 | 1,354
Income before tax expense | 32,864 | 32,886 | 23,508 | 7,189 | 31,499 | 29,153 | 18,432 | 2,760 | 96,447 | 81,844 | 60,937
Income tax expense | 4,696 | 12,796 | 6,235 | 1,473 | 4,472 | 8,243 | 2,350 | 1,104 | 25,200 | 16,169 | 16,013
Net income | $ 28,168 | $ 20,090 | $ 17,273 | $ 5,716 | $ 27,027 | $ 20,910 | $ 16,082 | $ 1,656 | $ 71,247 | $ 65,675 | $ 44,924
Basic (in dollars per share) | $ 0.68 | $ 0.49 | $ 0.42 | $ 0.14 | $ 0.67 | $ 0.51 | $ 0.39 | $ 0.04 | $ 1.73 | $ 1.61 | $ 1.12
Diluted (in dollars per share) | $ 0.67 | $ 0.48 | $ 0.42 | $ 0.14 | $ 0.65 | $ 0.51 | $ 0.39 | $ 0.04 | $ 1.71 | $ 1.59 | $ 1.11

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