Annual report pursuant to Section 13 and 15(d)

INCOME TAXES Income (Loss) Before Income Taxes and Equity Earnings (Details)

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INCOME TAXES Income (Loss) Before Income Taxes and Equity Earnings (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
U.S. $ 12,633 $ (148,248) $ (12,913)
Foreign 1,559 (4,457) (6,446)
Income (loss) before income tax expense and equity earnings $ 14,192 $ (152,705) $ (19,359)