Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Finance Lease
Finance lease right-of-use asset, net	$ 45,447	$ 46,182
Finance lease obligation, current	$ 2	$ 1
Accounts payable and accrued expenses	Accounts payable and accrued expenses	Accounts payable and accrued expenses
Finance lease obligation, less current portion	$ 15,568	$ 15,569
Total finance lease obligation	$ 15,570	15,570
Weighted average remaining finance lease term	77 years
Weighted average finance lease discount rate	9.00%
Operating Leases
Operating lease right-of-use assets, net	$ 24,939	26,093
Operating lease obligations, current	$ 5,344	$ 5,028
Accounts payable and accrued expenses	Accounts payable and accrued expenses	Accounts payable and accrued expenses
Operating lease obligations, less current portion	$ 27,816	$ 29,954
Total operating lease obligations	$ 33,160	34,982
Weighted average remaining operating lease term	6 years
Weighted average operating lease discount rate	5.10%
Weighted average remaining operating lease term including all available extensions	34 years
Buildings and improvements
Finance Lease
Finance lease, right-of-use asset, gross	$ 58,799	58,799
Finance lease, right-of-use asset, accumulated amortization	(13,352)	(12,617)
Finance lease right-of-use asset, net	$ 45,447	$ 46,182