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Stock-Based Compensation (Details 3)
12 Months Ended
Jun. 30, 2017
$ / shares
shares
Nonvested deferred share activity  
Nonvested shares at June 30, 2016 | shares 791,995
Shares granted | shares 516,969
Performance shares awarded in excess of target | shares 88,523
Shares vested and released | shares (396,530)
Shares cancelled | shares (5,604)
Nonvested shares at June 30, 2017 | shares 995,353
Weighted average grant date fair value per share at June 30, 2016 | $ / shares $ 21.45
Weighted average grant date fair value per share granted | $ / shares 19.80
Weighted average grant date fair value per performance shares | $ / shares 18.90
Weighted average grant date fair value per share vested and released | $ / shares 18.24
Weighted average grant date fair value per share cancelled | $ / shares 19.70
Weighted average grant date fair value per share at June 30, 2017 | $ / shares $ 21.65