Revenue and Accounts Receivable - Summary of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Capitated revenue	$ 655,493	$ 329,484	$ 1,329,844	$ 590,841
Percentage of capital revenue	95.00%	95.80%	95.50%	95.60%
Fee-for-service and other revenue	$ 33,880	$ 14,097	$ 63,671	$ 27,342
Percentage of fee for service and other revenue	5.00%	4.20%	4.50%	4.40%
Revenue	$ 689,373	$ 343,581	$ 1,393,515	$ 618,183
Medicare
Disaggregation of Revenue [Line Items]
Capitated revenue	$ 602,613	$ 284,974	$ 1,217,831	$ 505,659
Percentage of capital revenue	87.40%	82.80%	87.50%	81.80%
Other capitated revenue
Disaggregation of Revenue [Line Items]
Capitated revenue	$ 52,880	$ 44,510	$ 112,013	$ 85,182
Percentage of capital revenue	7.60%	13.00%	8.00%	13.80%
Fee-for-service
Disaggregation of Revenue [Line Items]
Fee-for-service and other revenue	$ 9,701	$ 4,389	$ 19,671	$ 8,937
Percentage of fee for service and other revenue	1.40%	1.30%	1.40%	1.40%
Pharmacy
Disaggregation of Revenue [Line Items]
Fee-for-service and other revenue	$ 12,759	$ 8,217	$ 24,274	$ 15,523
Percentage of fee for service and other revenue	1.90%	2.40%	1.70%	2.50%
Other
Disaggregation of Revenue [Line Items]
Fee-for-service and other revenue	$ 11,420	$ 1,491	$ 19,726	$ 2,882
Percentage of fee for service and other revenue	1.70%	0.50%	1.40%	0.50%