General form of registration statement for all companies including face-amount certificate companies

Significant Accounting Policies - Revenue Recognition (Details)

v3.23.1
Significant Accounting Policies - Revenue Recognition (Details)
$ in Thousands
1 Months Ended 3 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
customer
plan
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Dec. 02, 2021
USD ($)
customer
Dec. 31, 2022
USD ($)
customer
plan
Significant Accounting Policies          
Revenue $ 58,762 $ 302,077 $ 273,544 $ 578,602 $ 1,049,471
Number of health plans percentage of payment contracts entered | customer 4     4 4
Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 100.00% 100.00% 100.00% 100.00% 100.00%
Revenues | Customer Concentration | Four Health Plan Customers          
Significant Accounting Policies          
Percentage of total revenue 70.00%     78.00% 66.00%
Capitated revenue          
Significant Accounting Policies          
Revenue $ 57,224 $ 298,704 $ 269,685 $ 567,735 $ 1,034,800
Number of health plans percentage of payment contracts entered | plan 17       24
Capitated revenue | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 97.00% 98.90% 98.60% 98.00% 99.00%
Clinical fees & insurance revenue          
Significant Accounting Policies          
Revenue $ 751 $ 1,480 $ 1,882 $ 4,318 $ 6,158
Clinical fees & insurance revenue | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 2.00% 0.50% 0.70% 1.00% 0.00%
Shared risk revenue          
Significant Accounting Policies          
Revenue $ 181     $ 602 $ 351
Shared risk revenue | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 0.00%     0.00% 0.00%
Care coordination / management fees          
Significant Accounting Policies          
Revenue $ 600 $ 1,850 $ 1,921 $ 5,880 $ 7,924
Care coordination / management fees | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 1.00% 0.60% 0.70% 1.00% 1.00%
Incentive fees          
Significant Accounting Policies          
Revenue $ 6 $ 43 $ 56 $ 67 $ 238
Incentive fees | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 0.00% 0.00% 0.00% 0.00% 0.00%
Other patient service revenue          
Significant Accounting Policies          
Revenue $ 1,538 $ 3,373 $ 3,859 $ 10,867 $ 14,671
Other patient service revenue | Revenue | Product Concentration Risk [Member]          
Significant Accounting Policies          
Percentage of total revenue 3.00%     2.00% 1.00%