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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Income Tax Disclosure [Abstract]          
Income tax expense (benefit) $ (6,613) $ (19,874) $ (4,513) $ (51,757)  
Effective income tax rate     1.00% 5.00%  
Valuation allowance 395,000   $ 395,000    
Unrecognized tax benefits $ 83,000   $ 83,000   $ 73,000