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Revenue, Receivables, and Concentration of Credit Risk - Schedules of Concentration of Risk as a Percentage of Revenues and Receivables (Parenthetical) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Total Revenues | Payor D | Major Payors      
Concentration Risk [Line Items]      
Concentration risk, percentage   10.00%  
Receivables | Payor D | Major Payors      
Concentration Risk [Line Items]      
Concentration risk, percentage 12.00%   12.00%
Maximum [Member] | Total Revenues | Payor E      
Concentration Risk [Line Items]      
Concentration risk, percentage 10.00% 10.00%