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Organization, Basis of Presentation, and Summary of Significant Accounting Policies Floor Financing (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Floor Financing Accrual [Roll Forward]    
Balance at beginning of year $ 0 $ 0
Add: Additions to flooring provision 3,407 2,813
Less: Flooring paid (3,303) (2,813)
Balance at end of year $ 104 $ 0