Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Finance lease, cost			$ 3,300
Interest on financing leases	$ 813	$ 0	2,425	$ 0
Finance lease, right-of-use asset, amortization			900
Operating lease rent	$ 8,295	$ 9,507	$ 24,891	$ 26,661
Operating lease, weighted average discount rate, percent	8.47%		8.47%
Operating lease, weighted average remaining lease term	67 years		67 years
Financing leases
Remaining 2019	$ 621		$ 621
2020	2,619		2,619
2021	2,794		2,794
2022	2,794		2,794
2023	2,794		2,794
2024	2,819		2,819
Thereafter	814,283		814,283
Total minimum lease payments	828,724		828,724
Amount representing interest	(784,473)		(784,473)
Lease liabilities	44,251		44,251		$ 43,616
Operating leases (1)
Remaining 2019	7,797		7,797
2020	31,508		31,508
2021	31,702		31,702
2022	29,548		29,548
2023	27,243		27,243
2024	27,263		27,263
Thereafter	649,289		649,289
Total minimum lease payments	804,350		804,350
Amount discounted using incremental borrowing rate	(419,689)		(419,689)
Lease liabilities	384,661		384,661		$ 3,603
Total minimum sublease rentals to be received	$ 1,700,000		$ 1,700,000