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CONSOLIDATED STATEMENTS OF OPERATIONS & COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Jan. 01, 2017 | Dec. 25, 2015 | Dec. 26, 2014
Revenue from services | $ 2,750,640 | $ 2,695,680 | $ 2,174,045
Cost of services | 2,070,922 | 2,060,007 | 1,637,066
Gross profit | 679,718 | 635,673 | 536,979
Selling, general and administrative expense | 546,477 | 495,988 | 425,777
Depreciation and amortization | 46,692 | 41,843 | 29,474
Goodwill and intangible asset impairment charge | 103,544 | 0 | 0
Income (loss) from operations | (16,995) | 97,842 | 81,728
Interest expense | (7,166) | (4,160) | (3,156)
Interest and other income | 3,821 | 2,765 | 3,272
Interest and other income (expense), net | (3,345) | (1,395) | 116
Income (loss) before tax expense | (20,340) | 96,447 | 81,844
Income tax expense (benefit) | (5,089) | 25,200 | 16,169
Net income (loss) | $ (15,251) | $ 71,247 | $ 65,675
Net income (loss) per common share: |  |  |
Basic (in dollars per share) | $ (0.37) | $ 1.73 | $ 1.61
Diluted (in dollars per share) | $ (0.37) | $ 1.71 | $ 1.59
Weighted average shares outstanding: |  |  |
Basic (in shares) | 41,648 | 41,226 | 40,734
Diluted (in shares) | 41,648 | 41,622 | 41,176
Other comprehensive income (loss): |  |  |
Total other comprehensive income (loss), net of tax | $ 2,580 | $ (14,884) | $ (1,162)
Comprehensive income (loss) | (12,671) | 56,363 | 64,513
Foreign currency translation adjustment |  |  |
Other comprehensive income (loss): |  |  |
Foreign currency translation adjustment, net of tax | 1,830 | (14,362) | (1,281)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] |  |  |
Other comprehensive income (loss): |  |  |
Unrealized gain (loss) on investments, net of tax | $ 750 | $ (522) | $ 119

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