Revenue Components, Geographic Revenues and Significant Customers - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Jan. 01, 2012	Oct. 02, 2011	Jul. 03, 2011	Mar. 31, 2013 Segment	Apr. 01, 2012	Apr. 03, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments									1
Net revenues	$ 116,914	$ 119,386	$ 117,867	$ 130,371	$ 135,073	$ 142,779	$ 136,275	$ 144,481	$ 484,538	$ 558,608	$ 558,375
Significant customer threshold	10.00%								10.00%
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									$ 65,000	$ 72,600	$ 76,700