Summary of Significant Accounting Policies - Schedule of Earned 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]
Total revenues	$ 366,180	$ 308,739	$ 711,472	$ 575,739
Premium
Disaggregation of Revenue [Line Items]
Total revenues	351,107	293,435	681,985	558,148
Capitation
Disaggregation of Revenue [Line Items]
Total revenues	$ 15,073	$ 15,304	$ 29,487	$ 17,591