Leases - Schedule of Supplemental Balance Sheet Information Related to Operating Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted-Average Remaining Lease Term	35 years 2 months 12 days	35 years 3 months 18 days
Weighted-Average Discount Rate	7.40%	7.30%
Cash paid for amounts included in the measurement — operating cash flows from lease liabilities (in thousands)	$ 4,414	$ 3,548