Related-Party Transactions - Fees Incurred and Income Received (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Related Party Transaction [Line Items]
Receipts, net	$ 13,062	$ 10,579	$ 37,969	$ 36,112
AHMC
Related Party Transaction [Line Items]
AHMC – Risk pool, capitation, claims payment	13,532	10,712	39,317	36,505
Receipts, net	13,600	21,500	38,900	47,100
HSMSO
Related Party Transaction [Line Items]
Management fees	(395)	(33)	(1,123)	(141)
Aurion
Related Party Transaction [Line Items]
Management fees	$ (75)	$ (100)	$ (225)	$ (252)