Variable Interest Entities - Schedule of Operating Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Revenues	$ 6,060,530	$ 4,316,363	$ 2,388,220
Income (loss) from operations	(292,130)	(232,133)	(105,378)
Net income (loss)	(260,151)	(262,596)	(106,553)
Other income (expense), net	34,489	27,840	13,930
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Income (loss) from operations	22,687	22,500	14,294
Net income (loss)	15,050	16,336	10,556
Physician compensation expense	58,400	53,700	27,100
Physician compensation expense, exchange for common stock		15,200
Equity Method Investment, Nonconsolidated Investee or Group of Investees | CMS ACO Models
Variable Interest Entity [Line Items]
Revenues	3,900	1,600	1,600
Other income (expense), net	14,900	2,900	2,800
Medical services revenue
Variable Interest Entity [Line Items]
Revenues	6,047,715	4,307,350	2,384,889
Expenses	(5,842,530)	(4,008,659)	(2,093,860)
Medical services revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Revenues	1,814,618	1,160,978	1,071,302
Expenses	(1,667,806)	(1,024,468)	(991,565)
Other operating revenue
Variable Interest Entity [Line Items]
Revenues	12,815	9,013	3,331
Expenses	(213,159)	(238,034)	(183,000)
Other operating revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Expenses	$ (89,788)	$ (96,154)	$ (52,041)