Revenue Components, Geographic Revenues and Significant Customers - Net Revenues by Geographic Area (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	Apr. 01, 2012	Apr. 03, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 116,914	$ 119,386	$ 117,867	$ 130,371	$ 135,073	$ 142,779	$ 136,275	$ 144,481	$ 484,538	$ 558,608	$ 558,375
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									209,590	239,198	244,717
Asia-Pacific and Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									158,075	178,715	155,165
Europe, Middle East and Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									92,695	113,873	125,413
Rest of world [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									$ 24,178	$ 26,822	$ 33,080