Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Domestic $ 3,935 $ (137,147) $ (84,094)
Foreign 84,681 76,513 14,977
Income (loss) before income taxes and noncontrolling interest $ 88,616 $ (60,634) $ (69,117)