Segment, Geographic Location and Customer Information - Net Sales of 10% or More of Total Revenues Derived from Customers (Parenthetical) (Detail) - Customer D - Net Sales - Customer Concentration Risk	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers		14.00%		11.00%
Maximum
Entity Wide Revenue Major Customer [Line Items]
Percentage of net sales made to customers	10.00%		10.00%