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v3.8.0.1

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement [Abstract] |  |  |
Revenues | $ 957,958 | $ 690,123 | $ 623,595
Cost of revenues | (868,866) | (648,065) | (595,944)
Gross profit | 89,092 | 42,058 | 27,651
General and administrative expenses | (48,351) | (36,844) | (40,466)
Other operating expense, net | (14,565) | (9,943) | (1,572)
Operating income (loss) | 26,176 | (4,729) | (14,387)
Interest income | 314 | 33 | 460
Interest expense | (9,800) | (2,628) | (3,012)
Loss on extinguishment of debt | (755) | 0 | (240)
Income (loss) before income taxes and earnings attributable to noncontrolling interests | 15,935 | (7,324) | (17,179)
Income tax expense | (118) | (88) | (7)
Net income (loss) | 15,817 | (7,412) | (35,960)
Net income (loss), including portion attributable to noncontrolling interest, revaluation of noncontrolling interest due to a new agreement |  |  | (17,186)
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures | (4,200) | (1,826) | (3,216)
Net income (loss) attributable to Sterling common stockholders before noncontrolling interest revaluation | 11,617 | (9,238) | (20,402)
Revaluation of a noncontrolling interest due to a new agreement | 0 | 0 | (18,774)
Net income (loss) attributable to Sterling common stockholders | $ 11,617 | $ (9,238) | $ (39,176)
Net income (loss) per share attributable to Sterling common stockholders: |  |  |
Net income (loss) attributable to Sterling common stockholders, basic (in dollars per share) | $ 0.44 | $ (0.40) | $ (2.02)
Net income (loss) attributable to Sterling common stockholders, diluted (in dollars per share) | $ 0.43 | $ (0.40) | $ (2.02)
Weighted average number of common shares outstanding used in computing per share amounts: |  |  |
Weighted average common shares outstanding, basic (in shares) | 26,274 | 23,140 | 19,375
Weighted average number of shares outstanding, diluted (in shares) | 26,712 | 23,140 | 19,375

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