Goodwill Activity (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 31,534	$ 37,990
Additions		1,964
Foreign currency translation impact	1,469	(8,420)
Ending balance	$ 33,003	$ 31,534