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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Income Statement [Abstract] |  |
Gain (Loss) on Disposition of Business | $ 31,457 |
Revenues: |  |
Product sales | 75,953 | $ 67,978
Services and rentals | 123,428 | 91,431
Total revenues | 199,381 | 159,409
Cost of revenues: |  |
Cost of product sales | 60,214 | 49,582
Cost of services and rentals | 84,743 | 63,649
Depreciation, amortization, and accretion | 26,441 | 26,524
Total cost of revenues | 171,398 | 139,755
Gross profit | 27,983 | 19,654
General and administrative expense | 30,803 | 26,751
Interest expense, net | 14,973 | 13,767
Fair Value Adjustment Of Warrants, Income Statement | (1,994) | (5,976)
Preferred, Fair Value Adjustment | 1,358 | 1,631
Litigation Settlement, Amount | 0 | (12,816)
Other (income) expense, net | 2,776 | 461
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | (19,933) | (4,164)
Income (loss) before taxes | (21,057) | (4,245)
Provision (benefit) for income taxes | 1,124 | 81
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | (41,706) | (7,007)
Net income (loss) | (62,763) | (11,252)
(Income) loss attributable to noncontrolling interest | 9,115 | 8,789
Net income (loss) attributable to TETRA stockholders | $ (53,648) | $ (2,463)
Basic net income per common share: |  |
Net income (loss) attributable to TETRA stockholders | $ (0.46) | $ (0.02)
Average shares outstanding | 117,598 | 114,197
Income (Loss) from Continuing Operations, Per Diluted Share | $ (0.10) | $ 0.04
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share | (0.36) | (0.06)
Income (Loss) from Continuing Operations, Per Basic and Diluted Share | (0.10) | 0.04
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share | (0.36) | (0.06)
Diluted net income per common share: |  |
Net income (loss) attributable to TETRA stockholders | $ (0.46) | $ (0.02)
Average diluted shares outstanding | 117,598 | 114,304

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