Summary of Significant Accounting Policies - Schedule of Earned Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 359,978	$ 293,275	$ 1,071,450	$ 869,014
Premium
Disaggregation of Revenue [Line Items]
Total revenues	345,415	278,753	1,027,400	836,901
Capitation
Disaggregation of Revenue [Line Items]
Total revenues	$ 14,563	$ 14,522	$ 44,050	$ 32,113