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Share-based Compensation (Narratives) (Details) - $ / shares
3 Months Ended 9 Months Ended
Mar. 31, 2017
Sep. 30, 2016
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted       3,527,000  
Restricted stock units granted, grant date fair value       $ 4.09  
2014 Employee Stock Purchase Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options granted 1,114,707   999,758 2,218,306 1,999,519
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, award vesting percentage       The RSUs vest from the original grant date as to one-third (1/3) on the one year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company.  
Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted, percentage   50.00%      
Service-based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted, percentage   50.00%      
Executive Officers | Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted 100,000 680,000      
Other Employees | Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted   771,020      
Employees | Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units vesting, stock trigger price $ 5.00        
Restricted stock units vesting, Threshold consecutive trading days after January 1, 2017 30 days        
Minimum | Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted, grant date fair value   $ 3.02      
Maximum | Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock units granted, grant date fair value   $ 3.09