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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ 87,066 | $ (11,706) | $ (9,916)
Net loss attributable to the noncontrolling interest included in discontinued operations |  | (694) | (959)
Total net income (loss) before noncontrolling interest | 87,066 | (11,012) | (8,957)
Accumulated other comprehensive loss: |  |  |
Foreign currency translation loss, net of tax (included in discontinued operations) |  | (324) | (62)
Changes in value of equity securities (included in discontinued operations) |  |  | (117)
Comprehensive income (loss) | $ 87,066 | $ (11,336) | $ (9,136)

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