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Summary of Significant Accounting Policies - Summarizes Customer Concentrations as Percentage of Revenues (Details) - Revenues - Customer Concentrations
3 Months Ended 6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Government Payor A        
Significant Accounting Policies [Line Items]        
Concentration risk, percentage 32.00% 30.00% 33.00% 29.00%
Government Payor B        
Significant Accounting Policies [Line Items]        
Concentration risk, percentage   10.00%    
Third-party Payor C        
Significant Accounting Policies [Line Items]        
Concentration risk, percentage 12.00% 13.00% 11.00% 10.00%