Employee Benefit Plan - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Employer contribution as a percentage of employee contributions	2.00%
Employer contribution	25.00%
Full vesting period of employer contribution	4 years
Contribution expenses	$ 12.6	$ 11.9	$ 12.2