Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating lease liabilities
2021	$ 137,324
2022	143,183
2023	143,606
2024	144,303
2025	145,162
Thereafter	1,046,233
Total undiscounted future cash flows	1,759,811
Less: Imputed interest	(291,099)
Present value of undiscounted future cash flows	1,468,712	$ 693,539
Finance lease liabilities
2021	12,578
2022	13,099
2023	33,288
2024	12,039
2025	12,094
Thereafter	244,675
Total undiscounted future cash flows	327,773
Less: Imputed interest	(94,423)
Present value of undiscounted future cash flows	$ 233,350	$ 178,086