Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Operating Lease Liabilities, Payments Due [Abstract]
Year 1	$ 6,335
Year 2	6,029
Year 3	6,062
Year 4	5,873
Year 5	5,911
Years thereafter	569,804
Total future minimum lease payments	600,014
Less amount representing interest	(492,632)
Total present value of minimum payments	107,382	$ 106,331
Finance Lease Liabilities, Payments, Due [Abstract]
Year 1	260
Year 2	241
Year 3	232
Year 4	60
Year 5	46
Years thereafter	578
Total future minimum lease payments	1,417
Less amount representing interest	(271)
Total present value of minimum payments	$ 1,146	$ 1,308