XML 38 R27.htm IDEA: XBRL DOCUMENT v3.21.2
Stock-Based Compensation and Stock Options - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-statutory stock options expiration period     5 years  
Weighted-average grant-date fair value of options granted $ 51.88 $ 22.39    
Time Based Options and Performance Based Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 1,355,000 $ 1,238,000 $ 2,701,000 $ 2,233,000
Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 617,000 $ 510,000    
Director [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-statutory stock options expiration period     10 years  
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock grants 20,615,000   20,615,000  
Non-statutory stock options vesting period     36 years  
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-statutory stock options vesting period     1 year  
Share-based Compensation Award, Tranche One [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting Percentage     25.00%  
Share-based Compensation Award, Tranche Two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting Percentage     75.00%