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Income Taxes - Schedule Of Components Of Income Tax Provision (Benefit) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Current $ (27,319) $ 1,832 $ 43,817
Deferred 14,849 (103,022) 23,154
Income tax provision (benefit) $ (12,470) $ (101,190) $ 66,971