Leases - Summary of Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 9,891	$ 10,232
Variable lease cost	672	1,978
Short-term lease cost	848	668
Total lease cost	$ 11,411	$ 12,878