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Provision for Benefit from Income Taxes Based Loss Before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
U.S. Source $ (182,112) $ (128,700) $ (19,461)
Non-U.S. Source 87,301 (14,005) (16,414)
Loss before income taxes $ (94,811) $ (142,705) $ (35,875)