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Tax Receivable Agreement Liability (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
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]      
Beginning balance $ 89,561    
Payments under tax receivable agreement 0 $ (2,831)  
Payable Pursuant To Tax Receivable Agreement 94,085 93,750 $ 96,470
Less current portion under tax receivable agreement (4,189) (4,189)  
Ending balance 89,896 89,561  
Exchange of LLC Units for Class A Shares [Member]      
Tax Receivable Agreement [Roll Forward]      
Additions to tax receivable agreement: $ 335 $ 111