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Tax Receivable Agreement Liability (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2016
Tax Receivable Agreement [Line Items]    
Tax receivable agreement, percentage of realized cash saving in tax to pass through 8500.00%  
Tax Receivable Agreement [Roll Forward]    
Payable pursuant to tax receivable agreement $ 93,750 $ 96,470
Additions to tax receivable agreement:    
Payments under tax receivable agreement 0 (2,831)
Payable pursuant to tax receivable agreement 94,972 93,750
Less current portion under tax receivable agreement (4,360) (4,189)
Payable pursuant to tax receivable agreement 89,561  
Exchange of LLC Units for Class A Shares    
Additions to tax receivable agreement:    
Exchange of LLC Units for Class A Common Stock $ 1,222 $ 111