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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Millions
9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Restricted Stock and Stock Awards    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted stock granted 420,189 324,300
Vesting period, in years 3 years 3 years
Unrecognized compensation cost for unvested employee stock-based compensation awards outstanding, net of forfeitures $ 3.1  
Weighted-average period over which unrecognized compensation expense is expected to be recognized (years) 2 years  
Stock Options    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock options granted in period   100,000
Vesting period, in years   5 years
Unrecognized compensation cost for unvested employee stock-based compensation awards outstanding, net of forfeitures $ 0.8  
Weighted-average period over which unrecognized compensation expense is expected to be recognized (years) 2 years 7 months 6 days