Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Variable Interest Entity [Line Items]
Medical services revenue	$ 1,604,354	$ 1,054,312
Income (loss) from operations	(7,178)	417
Net income (loss)	(6,064)	16,022
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Income (loss) from operations	9,532	2,001
Net income (loss)	5,631	1,334
Physician compensation expense	16,700	9,700
Medical services revenue
Variable Interest Entity [Line Items]
Medical services revenue	1,601,195	1,053,119
Expenses	(1,443,842)	(897,572)
Medical services revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Medical services revenue	440,160	280,529
Expenses	(398,792)	(257,477)
Other operating revenue
Variable Interest Entity [Line Items]
Medical services revenue	3,159	1,193
Expenses	(85,424)	(83,617)
Other operating revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Expenses	$ (25,405)	$ (15,744)