Segment Information - Revenue Information by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 28, 2012	Dec. 30, 2011
Segment Reporting Information [Line Items]
Revenue information by geographic area - United States	$ 221,445	$ 165,660	$ 606,669	$ 495,621
Total revenues	286,442	204,964	811,027	623,089
Europe, Middle East and Africa [Member]
Segment Reporting Information [Line Items]
Revenue information by geographic area	39,903	25,107	126,448	82,347
Asia, Pacific [Member]
Segment Reporting Information [Line Items]
Revenue information by geographic area	14,256	4,586	35,148	16,583
North America Other Than United States [Member]
Segment Reporting Information [Line Items]
Revenue information by geographic area	8,786	7,763	33,073	17,476
Central and Latin America [Member]
Segment Reporting Information [Line Items]
Revenue information by geographic area	$ 2,052	$ 1,848	$ 9,689	$ 11,062