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Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - Medicare
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Revenue Benchmark | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration risk percentage 42.00% 54.00%  
Accounts Receivable | Credit Concentration Risk      
Concentration Risk [Line Items]      
Concentration risk percentage 26.00%   27.00%