Leases - Summary of Additional Lease Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 2,718	$ 2,999
Operating lease ROU assets obtained in exchange for lease obligations	$ 7,433	$ 1,466
Weighted-average remaining lease term - operating leases (years)	6 years 6 months	6 years 3 months 18 days
Weighted-average discount rate - operating leases	4.40%	5.10%