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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Income Tax Disclosure [Abstract]          
Current $ (68) $ 0 $ (154) $ 0  
Deferred (837) 859 (2,582) 2,077  
Income tax (expense) benefit (905) $ 859 (2,736) $ 2,077  
Net deferred tax assets $ 36,265   $ 36,265   $ 38,847