Lease Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Finance Lease, amortization of right-of-use assets	$ 1,284	$ 1,284	$ 1,284
Finance Lease, interest on lease liabilities	5,828	5,826	5,824
Operating lease cost	5,687	5,946	6,063
Variable lease cost	246	353	487
Total Lease Cost	13,045	13,409	13,658
Operating cash flows for finance leases	5,723	5,736	5,759
Operating cash flows for operating leases	5,288	5,498	5,561
Financing cash flows for finance leases	$ 51	$ 46	$ 47
Weighted-average remaining lease term - finance leases	16 years 3 months 18 days	17 years 3 months 18 days
Weighted-average remaining lease term - operating leases	52 years 9 months 18 days	53 years 4 months 24 days
Weighted-average discount rate - finance leases	8.00%	8.00%
Weighted-average discount rate - operating leases	4.50%	4.40%
ROU assets obtained in exchange for operating lease liabilities	$ 10,341	$ 855