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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Income Tax Disclosure [Abstract]        
Income tax expense (benefit) $ 5,754 $ (12,519) $ 13,232 $ (13,299)
Effective tax rate 31.20% 25.00% 29.10% 25.80%