Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 1,841	$ (3,898)	$ 3,570	$ (11,111)
Pre-tax income (losses)	$ (5,300)	$ 7,200	$ 11,200	$ (233,300)
Effective income tax rates	(34.50%)	(53.80%)	31.90%	4.80%