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Non-controlling Interest - Narrative (Details) - USD ($)
$ in Thousands
 6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2020
Non-controlling Interest in LLC      
Noncontrolling Interest [Line Items]      
Tax distributions payable to non-controlling LLC Unit holders $ 495   $ 104
Tax distributions paid to non-controlling LLC Unit holders $ 553 $ 969  
Class A Common Stock      
Noncontrolling Interest [Line Items]      
Issuance LLC Units (in shares) 167,159    
Treasury Stock, Common      
Noncontrolling Interest [Line Items]      
Treasury stock, shares, retired (in shares) 9,665