Medical Claims and Related Payables - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Liability For Claims And Claims Adjustment Expense [Line Items]
Medical claims and related payables	$ 239,014	$ 162,868
Current Liabilities Held For Sale And Discontinued Operations
Liability For Claims And Claims Adjustment Expense [Line Items]
Medical claims and related payables		1,300	$ 1,100	$ 1,800
Related payables associated with retained liability	$ 200	$ 4,100	$ 18,000