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Consolidated Statements of Comprehensive Income (Loss) Statement - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Net earnings (loss) $ 6,653 $ (105,195) $ (953,520)
Foreign currency translation adjustments   (5,188) (6,399)
Total other comprehensive income (loss) 5,241 (5,188) (6,399)
Comprehensive income (loss) $ 11,894 $ (110,383) $ (959,919)