Segment Information - Revenue Information by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 04, 2013	Sep. 28, 2012	Oct. 04, 2013	Sep. 28, 2012
Segment Reporting Information [Line Items]
Total revenues	$ 353,881	$ 282,822	$ 674,983	$ 524,585
Reportable Geographical Components [Member] | United States [Member]
Segment Reporting Information [Line Items]
Total revenues	257,898	206,490	496,697	385,224
Reportable Geographical Components [Member] | Europe, Middle East and Africa [Member]
Segment Reporting Information [Line Items]
Total revenues	35,884	54,330	76,711	86,545
Reportable Geographical Components [Member] | Asia, Pacific [Member]
Segment Reporting Information [Line Items]
Total revenues	49,953	12,461	82,818	20,892
Reportable Geographical Components [Member] | North America other than United States [Member]
Segment Reporting Information [Line Items]
Total revenues	8,520	6,900	16,298	24,287
Reportable Geographical Components [Member] | Central and Latin America [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 1,626	$ 2,641	$ 2,459	$ 7,637