Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016
Assets:
Cash equivalents	$ 2,003	$ 2,003
Foreign currency forward contracts	35	196
Total assets measured at fair value on a recurring basis	2,038	2,199
Level 1 [Member]
Assets:
Cash equivalents	2,003	2,003
Total assets measured at fair value on a recurring basis	2,003	2,003
Level 2 [Member]
Assets:
Foreign currency forward contracts	35	196
Total assets measured at fair value on a recurring basis	$ 35	$ 196