Quarterly report pursuant to Section 13 or 15(d)

Purchase of Treasury Stock - Additional Information (Detail)

v3.3.0.814
Purchase of Treasury Stock - Additional Information (Detail) - USD ($)
shares in Thousands
6 Months Ended
Sep. 30, 2015
Jan. 29, 2015
Equity, Class of Treasury Stock [Line Items]    
Stock repurchase program authorized amount   $ 18,000,000
Stock Repurchase Program [Member]    
Equity, Class of Treasury Stock [Line Items]    
Number of shares purchased during period 187  
Cost of shares purchased during period $ 3,399,000