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Share-Based Compensation (Schedule of Share-Based Compensation) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation [Abstract]      
Equity classified stock options $ 1,356 $ 1,479 $ 1,480
Equity classified restricted stock 5,246 5,614 5,042
Total share-based compensation $ 6,602 $ 7,093 $ 6,522