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Compensation Expense (Details 1) - Jun. 30, 2015 - shares
shares in Thousands
Total
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 8 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years
Employee Stock Option  
Share-based Compensation Arrangement by Share-based Payment Award  
Share-based Compensation Arrangement by Share-based Payment Award Granted Price as Percentage of Fair Market Value Minimum 100.00%
Stock Compensation Plan  
Share-based Compensation Arrangement by Share-based Payment Award  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 6,337