Segment and Geographic Information - Additional Information (Detail)	12 Months Ended
	Mar. 31, 2015 Segment Customer	Mar. 31, 2014 Customer
Segment Reporting [Abstract]
Number of reportable segments	1
Percentage of net sales made to customers	10.00%
Percentage of accounts receivable from major customers	10.00%	10.00%
Customers accounted for more than ten percent of accounts receivables		1