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Share-based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 31, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding   2,871,683 1,614,317
Unrecognized compensation expense related to non-vested stock options   $ 1.8  
Expected weighted average period for recognition of compensation expense   1 year 6 months  
Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   12 months  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years  
2008 Omnibus Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock authorized   6,686,000  
Shares available for future grant   3,443,920  
Stock Compensation Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding   2,871,683  
Stock Compensation Plan | Chief Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding   29,603  
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected weighted average period for recognition of compensation expense   4 months 24 days  
Fair value of RSUs on the date of grant $ 3.5    
RSUs grant date fair value per unit $ 8.63    
Unrecognized compensation expense related to non-vested RSUs   $ 0.1  
Restricted Stock Units (RSUs) | Chief Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs granted 400,000    
Number of common stock to be received for each RSUs 1    
Restricted Stock Units (RSUs) | Chief Executive Officer | Vested on August 30, 2014      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs vested percentage 33.33%    
Restricted Stock Units (RSUs) | Chief Executive Officer | Vested on August 30, 2015      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs vested percentage 33.33%    
Restricted Stock Units (RSUs) | Chief Executive Officer | Vested on August 30, 2016      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs vested percentage 33.33%    
Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   36 months  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years  
Employee Stock Option | Vesting one year from the date of grant      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs vested percentage   25.00%