Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 670,134	$ 498,956	$ 1,323,579	$ 912,060
Medical services expense		(587,140)	(442,483)	(1,153,348)	(802,837)
Other medical expenses		49,080	33,694	93,853	57,355
Net income (loss)		(20,649)	(298,845)	(19,419)	(313,923)
Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		669,184	497,678	1,321,607	910,090
Direct Contracting Entities
Subsidiary or Equity Method Investee [Line Items]
Medical services expense		(255,663)	(152,154)	(504,014)	(152,154)
Other medical expenses	[1]	(12,160)	(7,156)	(24,804)	(7,156)
Net income (loss)	[2]	5,694	1,840	7,706	1,840
Direct Contracting Entities | Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 277,050	$ 163,984	$ 544,763	$ 163,984

[1] For the three months ended June 30, 2022 and 2021, includes physician incentive expenses of $5.9 million and $3.6 million, respectively. For the six months ended June 30, 2022 and 2021, includes physician incentive expenses of $12.1 million and $3.6 million, respectively

[2] Included in Other income (expense) in the consolidated statements of operations.