Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 34,500		$ 36,975	$ 10,400
Operating lease liability	34,842			$ 10,400
Operating lease cost	$ 3,700	$ 2,300
Weighted average remaining lease term	3 years 7 months 6 days
Weighted average discount rate	5.40%