Leases - Summary of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost	$ 4,062	$ 3,944	$ 7,882	$ 7,935
Short-term lease cost	98	81	186	163
Variable lease cost	1,280	1,660	2,715	3,016
Sublease income	(105)	(63)	(166)	(124)
Total lease cost	$ 5,335	$ 5,622	$ 10,617	$ 10,990