Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 694,858	$ 458,613	$ 2,018,437	$ 1,370,673
Medical services expense		(618,287)	(414,202)	(1,771,635)	(1,217,039)
Other medical expenses		50,659	29,454	144,512	86,809
Net income (loss)		(30,668)	(35,843)	(50,087)	(349,766)
Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		693,934	457,646	2,015,541	1,367,736
Direct Contracting Entities
Subsidiary or Equity Method Investee [Line Items]
Medical services expense		(231,910)	(135,529)	(735,924)	(287,683)
Other medical expenses	[1]	(9,215)	(6,468)	(34,019)	(13,624)
Net income (loss)	[2]	(4,361)	(117)	3,345	1,723
Direct Contracting Entities | Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 241,408	$ 144,931	$ 786,171	$ 308,915

[1] For the three months ended September 30, 2022 and 2021, includes physician incentive expenses of $2.9 million and $2.5 million, respectively. For the nine months ended September 30, 2022 and 2021, includes physician incentive expenses of $15.0 million and $6.1 million, respectively

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