Leases (Maturities of Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 20,316
2022	19,051
2023	19,082
2024	18,380
2025	15,575
Thereafter	910,134
Total lease payments	1,002,538
Less: Imputed interest	(691,374)
Total present value of lease liabilities	311,164	$ 364,803
Finance Leases
2021	8,777
2022	8,587
2023	69,439
2024	1,491
2025	1,459
Thereafter	107,674
Total lease payments	197,427
Less: Imputed interest	(90,325)
Total present value of lease liabilities	$ 107,102	$ 108,890