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Income Taxes - Components of Loss From Continuing Operations Before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
United States $ 11,940 $ (48,558) $ (153,290)
Foreign 137,245 115,743 114,266
Income (loss) before income taxes $ 149,185 $ 67,185 $ (39,024)