Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v3.5.0.2
Stock-Based Compensation - Additional Information (Detail) - USD ($)
9 Months Ended
May 31, 2013
Sep. 30, 2016
May 12, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, issued   20,844,000   15,964,000
Restricted Share Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock awards vesting periods   3 years    
Unrecognized compensation expense   $ 600,000    
Weighted average term   2 years 8 months 12 days    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock awards vesting periods   3 years    
2013 Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, issued   1,100,000 500,000  
Stock awards vesting periods 3 years      
2013 Plan | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options exercise price, percentage 100.00%      
2013 Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant Expiration Date 10 years      
2003 Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options, issued   0    
Options, exercised   0    
Options, vested   0    
Options outstanding, intrinsic value   $ 0