Income Taxes - Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal – current	$ (13,810)	$ 20,107	$ 6,994
State – current	19	2	95
Foreign – current	25,899	9,531	25,252
Total current	12,108	29,640	32,341
Federal – deferred	(67,015)	(75,279)	(85,066)
Foreign – deferred	10,107	(714)	12,939
Total deferred	(56,908)	(75,993)	(72,127)
Income tax benefit	$ (44,800)	$ (46,353)	$ (39,786)