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Restricted Share Grants - Additional Information (Detail) - shares
3 Months Ended
Sep. 05, 2014
May. 28, 2013
Feb. 28, 2013
Mar. 31, 2016
May. 21, 2013
Feb. 01, 2013
Restricted Shares [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued 10,000     591,250    
Shares outstanding       591,250    
Shares vested       8,750    
Long Term Incentive 2007 Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Initial restricted shares issued   500,000 100,000      
Long Term Incentive 2007 Plan [Member] | Restricted Shares [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized for issuance         1,000,000 600,000
Increase in shares issuable by shareholders           500,000