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	$ 4,299	$ 4,075
Operating cash flows from finance leases	689	919
Financing cash flows from finance leases	323	365
Right-of-use assets obtained in exchange for lease obligations
Operating leases	959	878
Finance leases	$ 1,949	$ 21,179