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Income Taxes Effective Income Tax Rate (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Tax [Line Items]    
Income tax expense (benefit) $ 936 $ (14,117)
Loss before income taxes $ (33,777) $ (126,556)
Effective tax rate (3.00%) 11.00%