Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Narrative (Details)

v3.3.1.900
Share-Based Compensation - Narrative (Details) - shares
6 Months Ended
Nov. 30, 2015
Aug. 11, 2015
Omnibus Equity Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares reserved for issuance   3,000,000
Number of common shares available for future issuance 1,399,389  
Omnibus Equity Incentive Plan | Employee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Contractual life 10 years  
Vesting period 4 years  
Omnibus Equity Incentive Plan | Non-Employee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Contractual life 10 years  
Vesting period 6 years  
2011 Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common shares available for future issuance 0  
DSU Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of common shares available for future issuance 0  
DSUs | Omnibus Equity Incentive Plan | Director    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percentage of cash compensation eligible to be paid as DSUs 100.00%