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Organization, Basis of Presentation, and Summary of Significant Accounting Policies Accrued Expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Payables and Accruals [Abstract]      
Standard and Extended Product Warranty Accrual $ 10,050 $ 8,083 $ 6,610
Accrued Dealer Incentives 3,295 4,016  
Accrued Compensation 4,262 2,647  
Accrued Professional Fees 2,569 462  
Estimated Litigation Liability 0 3,268  
Interest Payable 18 32  
Other 1,422 547  
Accrued expenses $ 21,616 $ 19,055