Leases - Summary of Net Lease Cost (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	$ 3,521	$ 3,601	$ 7,082	$ 7,215
Finance lease cost	35	17	66	20
Variable lease cost	457	448	947	970
Total lease cost	$ 4,013	$ 4,066	$ 8,095	$ 8,205