Quarterly report pursuant to Section 13 or 15(d)

Description of Stock Plans - Intrinsic Value of Options Exercised and Fair Value of Options Vested (Detail)

v3.2.0.727
Description of Stock Plans - Intrinsic Value of Options Exercised and Fair Value of Options Vested (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Total fair value of options vested $ 1,266 $ 1,461
Total intrinsic value of options exercised $ 5 $ 0