Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Revenues	$ 4,316,363	$ 2,388,220	$ 1,521,494
Income (loss) from operations	(232,133)	(105,378)	(372,242)
Net income (loss)	(262,596)	(106,553)	(406,487)
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Income (loss) from operations	22,500	14,294	(6,737)
Net income (loss)	16,336	10,556	(7,143)
Physician compensation expense	53,700	27,100	1,000
Physician compensation expense, exchange for common stock	15,200
Medical Services
Variable Interest Entity [Line Items]
Revenues	4,307,350	2,384,889	1,518,322
Expenses	(4,008,659)	(2,093,860)	(1,357,326)
Medical Services | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Revenues	1,160,978	1,071,302	437,081
Expenses	(1,024,468)	(991,565)	(424,816)
Other Operating
Variable Interest Entity [Line Items]
Revenues	9,013	3,331	3,172
Expenses	(238,034)	(183,000)	(98,424)
Other Operating | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Expenses	$ (96,154)	$ (52,041)	$ (12,219)