Summary of Significant Accounting Policies - Texas Waiver Program (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 1,470,920	$ 1,368,734	$ 2,909,966	$ 2,685,722
Texas Waiver Program | Patient Services | Third-Party Payor
Disaggregation of Revenue [Line Items]
Revenue	58,200	37,200	111,900	78,700
Provider assessment costs	$ 20,800	$ 14,700	$ 41,700	$ 30,100