Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,810	$ 2,312
Operating cash flows from finance leases	999	336
Financing cash flows from finance leases		504
Non-cash additions to ROU assets and lease liabilities:
Operating leases	$ 423	16,043
Finance leases		$ 4,617