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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Statement [Abstract] |  |  |
Revenue | $ 221,247 | $ 171,022 | $ 286,326
Cost of revenue | 228,443 | 213,947 | 261,473
Gross profit (loss) | (7,196) | (42,925) | 24,853
General and administrative expense | 19,015 | 17,800 | 19,670
Asset impairments and (gain) loss on assets held for sale, net | (6,850) | 7,931 | 0
Other (income) expense, net | 304 |  |
Other (income) expense, net |  | (46) | (681)
Operating income (loss) | (19,665) | (68,610) | 5,864
Interest income (expense), net | (142) | (349) | (308)
Net income (loss) before income taxes | (19,807) | (68,959) | 5,556
Income tax (expense) benefit | (571) | 24,193 | (2,041)
Net income (loss) | $ (20,378) | $ (44,766) | $ 3,515
Per share data: |  |  |
Basic and fully diluted earnings (loss) per share—common shareholders (in dollars per share) | $ (1.36) | $ (3.02) | $ 0.24
Cash dividends per common share (in dollars per share) | $ 0 | $ 40.00 | $ 40.00

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