Segment and Geographic Information - Summary of Distributors and Customer Accounted for Ten Percentage or More of Net Sale (Detail)	3 Months Ended			9 Months Ended
	Dec. 30, 2012	Jan. 01, 2012		Dec. 30, 2012		Jan. 01, 2012
Distributor A [Member]
Segment Reporting Information [Line Items]
Distributors accounted for net sale	28.00%	30.00%		30.00%		30.00%
Distributor B [Member]
Segment Reporting Information [Line Items]
Distributors accounted for net sale	10.00%	11.00%		10.00%		11.00%
Distributor C [Member]
Segment Reporting Information [Line Items]
Distributors accounted for net sale	10.00%	10.00%		10.00%			[1]
Customer A [Member]
Segment Reporting Information [Line Items]
Distributors accounted for net sale	12.00%		[1]		[1]		[1]

[1] Net sales for this distributor or customer for this period were less than 10% of our net sales.