Income Taxes - Provision for Federal and Foreign Income Tax Expense for Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income (loss) before income taxes, U.S.	$ (389,176)	$ (784,167)	$ 235,571
Income (loss) before income taxes, Foreign	(49,841)	(143,157)	38,189
Income (loss) before income taxes	$ (439,017)	$ (927,324)	$ 273,760