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Income Taxes Net Income (Loss) By Region (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
United States $ 130,427 $ (70,737) $ (45,819)
Foreign (1,125) (1,514) (33,974)
Income (loss) before income taxes $ 129,302 $ (72,251) $ (79,793)