Leases - Summary of Additional Lease Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 2,999	$ 3,753
Operating right-of-use assets obtained in exchange for lease obligations	$ 1,466	$ 12,011
Weighted-average remaining lease term - operating leases (years)	6 years 3 months 18 days	7 years
Weighted-average discount rate - operating leases	5.10%	5.10%