Segment, Geographic Location and Customer Information - Net Sales of 10% or More of Total Revenues Derived from Customers (Detail) (Net Sales)	3 Months Ended				9 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Customer A
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers	16.00%		14.00%		18.00%		16.00%
Customer B
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers		[1]		[1]	16.00%			[1]
Customer C
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers	20.00%		39.00%		15.00%		32.00%
Customer D
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers	14.00%		12.00%		12.00%		16.00%
Customer E
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers	11.00%			[1]		[1]		[1]

[1] Represents less than 10% of net sales.