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Income Taxes - Income (Loss) Before Income Tax Provision (Benefit) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
United States $ 68,916 $ 55,352 $ 100,031
Foreign (196,394) 40,417 31,241
(Loss) income before income taxes $ (127,478) $ 95,769 $ 131,272