Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Variable Interest Entity [Line Items]
Medical services revenue	$ 1,149,052	$ 670,134	$ 2,285,199	$ 1,323,579
Income (loss) from operations	(29,821)	(21,052)	(23,560)	(21,795)
Net income (loss)	(16,749)	(20,649)	(727)	(19,419)
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Income (loss) from operations	11,184	6,185	13,185	9,368
Net income (loss)	8,426	5,694	9,760	7,706
Physician compensation expense	16,600	5,900	26,300	12,100
Medical services revenue
Variable Interest Entity [Line Items]
Medical services revenue	1,147,044	669,184	2,281,874	1,321,607
Expenses	(1,008,734)	(587,140)	(1,981,561)	(1,153,348)
Medical services revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Medical services revenue	280,820	277,050	561,349	544,763
Expenses	(241,844)	(255,663)	(499,321)	(504,014)
Other operating revenue
Variable Interest Entity [Line Items]
Medical services revenue	2,008	950	3,325	1,972
Expenses	(83,125)	(49,080)	(169,149)	(93,853)
Other operating revenue | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Variable Interest Entity [Line Items]
Expenses	$ (23,424)	$ (12,160)	$ (39,168)	$ (24,804)