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Employee Benefits Plans Employee Stock Purchase Plan (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Employee Stock Purchase Plan, Discount Percent 15.00%    
Employee Stock Purchase Plan, Expense $ 1,102 $ 1,008 $ 861