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Equity - Performance Stock Units (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Class of Stock [Line Items]      
Allocated Share-based Compensation Expense $ 5,554 $ 5,149 $ 4,658
Performance Stock Unit Performance Condition Achieved 55.00%    
Performance Stock Units (PSUs)      
Class of Stock [Line Items]      
Total Fair Value Of Units Vesting During Period $ 4,097 $ 2,027 $ 2,299
Unrecognized Compensation Expense, Weighted Average Period Expected To Vest 2 years 1 month 7 days    
Allocated Share-based Compensation Expense $ 2,694    
Maximum | Performance Stock Units (PSUs)      
Class of Stock [Line Items]      
Percentage Of Payout Earned Based On Predefined Targets 150.00%    
Minimum | Performance Stock Units (PSUs)      
Class of Stock [Line Items]      
Percentage Of Payout Earned Based On Predefined Targets 0.00%