Segment, Geographic Location and Customer Information - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Revenues From External Customers And Long Lived Assets [Line Items]
Number of reportable segments	1
Customers accounted for more than ten percent of accounts receivables	2	3
Customer 1
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of net sales made to customers	29.00%	33.00%
Percentage of accounts receivable from major customers	27.00%	19.00%
Customer 2
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of net sales made to customers	17.00%	18.00%
Percentage of accounts receivable from major customers	16.00%	10.00%
Customer 3
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of net sales made to customers		14.00%
Percentage of accounts receivable from major customers		10.00%