Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Facility operating expense	$ 2,176	$ 1,732	$ 4,096	$ 3,358
Facility lease expense	50,964	50,512	102,460	96,639
Operating lease expense	53,140	52,244	106,556	99,997
Operating lease expense adjustment	13,483	11,557	26,572	22,362
Changes in operating lease assets and liabilities for lessor capital expenditure reimbursements	(1,051)	0	(1,300)	(2,244)
Operating net cash outflows from operating leases	65,572	63,801	131,828	120,115
Depreciation and amortization	2,898	4,091	5,770	10,476
Interest expense: financing lease obligations	5,110	5,453	10,171	12,005
Financing lease expense	8,008	9,544	15,941	22,481
Operating cash outflows from financing leases	5,110	5,453	10,171	12,005
Financing cash outflows from financing leases	265	2,126	527	7,978
Total net cash outflows from financing leases	$ 5,375	$ 7,579	$ 10,698	$ 19,983