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Summary of Significant Accounting Policies - Summarizes Customer Concentrations as Percentage of Revenues (Details) - Revenues - Customer Concentrations
3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Government Payor A        
Significant Accounting Policies [Line Items]        
Concentration risk, percentage 29.00% 28.00% 33.00% 28.00%
Third-party Payor C        
Significant Accounting Policies [Line Items]        
Concentration risk, percentage 10.00%   11.00% 10.00%