Leases - Land Lease Obligations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Lease costs
Right of use assets	$ 59,400		$ 59,400		$ 59,700
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets		Other Assets		Other Assets
Lease obligations, net	$ 23,800		$ 23,800		$ 24,100
Land lease expense	407	$ 389	809	$ 736
Lease liabilities	$ 17,664		$ 17,664
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accounts Payable and Accrued Liabilities		Accounts Payable and Accrued Liabilities
Amortization of right of use assets for finance lease			$ 0	0
Operating cash outflows	$ 301	$ 267	$ 598	$ 534
Weighted-average remaining lease term - operating leases (years)	33 years 8 months 12 days	36 years 3 months 18 days	33 years 8 months 12 days	36 years 3 months 18 days
Operating cash outflows	$ 64	$ 65	$ 128	$ 86
Financing cash outflows	$ 20	$ 19	$ 40	$ 54
Weighted-average remaining lease term - finance leases (years)	2 years 3 months 18 days	3 years 3 months 18 days	2 years 3 months 18 days	3 years 3 months 18 days
Right-of-use assets obtained in exchange for new operating lease liabilities		$ 6,302	$ 0	$ 6,302
Right-of-use assets net change		$ 6,302	$ 0	$ 6,302
Weighted-average discount rate - operating leases	4.00%	4.00%	4.00%	4.00%
Weighted-average discount rate - finance leases	4.00%	4.00%	4.00%	4.00%
Maturity Analysis of Lease Liabilities for Operating Leases
Lease payments 2022 (remaining)	$ 598		$ 598
Lease payments 2023	1,197		1,197
Lease payments 2024	1,197		1,197
Lease payments 2025	1,197		1,197
Lease payments 2026	1,195		1,195
Lease payment Thereafter	29,851		29,851
Total lease payments	35,235		35,235
Imputed interest 2022 (remaining)	(363)		(363)
Imputed interest 2023	(711)		(711)
Imputed interest 2024	(690)		(690)
Imputed interest 2025	(669)		(669)
Imputed interest 2026	(647)		(647)
Imputed interest Thereafter	(14,491)		(14,491)
Total imputed interest	(17,571)		(17,571)
Total Lease Liabilities 2022 (remaining)	235		235
Total Lease Liabilities 2023	486		486
Total Lease Liabilities 2024	507		507
Total Lease Liabilities 2025	528		528
Total Lease Liabilities 2026	548		548
Total Lease Liabilities Thereafter	15,360		15,360
Total lease liabilities	17,664		17,664
Maturity Analysis of Lease Liabilities for Finance Leases
Lease payments 2022 (remaining)	168		168
Lease payments 2023	336		336
Lease payments 2024	6,252		6,252
Lease payments 2025	0		0
Lease Payment 2026	0		0
Thereafter	0		0
Total lease payments	6,756		6,756
Imputed interest 2022 (remaining)	(127)		(127)
Imputed interest 2023	(252)		(252)
Imputed interest 2024	(207)		(207)
Imputed interest 2025	0		0
Imputed interest 2026	0		0
Imputed interest Thereafter	0		0
Imputed interest Total	(586)		(586)
Total lease Liabilities 2022 (remaining)	41		41
Total Lease Liabilities 2023	84		84
Total Lease Liabilities 2024	6,045		6,045
Total Lease Liabilities 2024	0		0
Total Lease Liabilities 2026	0		0
Total Lease Liabilities Thereafter	0		0
Total lease liabilities	$ 6,170		$ 6,170
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities		Accounts Payable and Accrued Liabilities		Accounts Payable and Accrued Liabilities
Maximum [Member]
Lease costs
Finance lease right-of-use asset amortization and interest expense			$ 100	$ 100