Variable Interest Entities - Summary of Operating Results (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 653,445	$ 413,104
Medical services expense		(566,208)	(360,354)
Other medical expenses		44,773	23,661
Net income (loss)		1,230	(15,078)
Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		652,423	$ 412,412
Direct Contracting Entities
Subsidiary or Equity Method Investee [Line Items]
Medical services expense		(248,351)
Other medical expenses	[1]	(12,644)
Net income (loss)	[2]	(2,012)
Direct Contracting Entities | Medical Services Revenue
Subsidiary or Equity Method Investee [Line Items]
Total revenues		$ 267,713

[1] For the three months ended March 31, 2022, includes physician incentive expenses of $6.2 million.

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