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Share-Based Compensation Schedule of Remaining Stock Option Plan Data (Details) - Stock Options
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average remaining contractual life of outstanding options 7 years 6 years 6 years
Weighted-average remaining contractual life of exercisable options 6 years 5 years 5 years
Weighted-average period over which stock option compensation cost is expected to be recognized 2 years 2 years 2 years