Income Taxes - Summary of Provision for (Benefit from) Income Taxes and Effective Tax Rate from Continuing Operations (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]
Pretax income	$ 37,327	$ 32,755	$ 114,305	$ 109,952
Provision for (benefit from) income taxes	$ 9,557	$ (7,206)	$ 29,121	$ 12,670
Effective rate	25.60%	(22.00%)	25.50%	11.50%