Leases - Finance and Operating Lease Asset and Liability Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finance leases:
Land, property and equipment, gross	$ 693,689	$ 685,356
Accumulated depreciation	(431,928)	(394,445)
Total land, property and equipment, net	261,761	290,911
Current portion of finance lease obligations	$ 846	$ 840
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of finance lease obligations	Current portion of finance lease obligations
Long-term portion of finance lease obligations	$ 2,427	$ 2,552
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term portion of finance lease obligations	Long-term portion of finance lease obligations
Total finance lease liabilities	$ 3,273	$ 3,392
Operating leases:
Operating lease right-of-use assets	$ 42,537	$ 25,967
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Operating lease right-of-use assets	Operating lease right-of-use assets
Current portion of operating lease obligations	$ 3,551	$ 2,822
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of operating lease obligations	Current portion of operating lease obligations
Long-term portion of operating lease obligations	$ 39,431	$ 23,698
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term portion of operating lease obligations	Long-term portion of operating lease obligations
Total operating lease liabilities	$ 42,982	$ 26,520
Finance Leased Assets
Finance leases:
Land, property and equipment, gross	5,617	4,915
Accumulated depreciation	(2,646)	(1,905)
Total land, property and equipment, net	$ 2,971	$ 3,010