Goodwill and Acquired Intangible Assets - Allocation of Other Acquired Intangible Assets and Related Accumulated Amortization (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 03, 2015	Apr. 04, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Other acquired intangible assets, gross	$ 190,221	$ 166,537
Other acquired intangible assets, accumulated amortization	(147,881)	(131,140)
Other acquired intangible assets, net	42,340	35,397
Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	6 years
Other acquired intangible assets, gross	67,403	57,084
Other acquired intangible assets, accumulated amortization	(55,939)	(52,979)
Other acquired intangible assets, net	11,464	4,105
Contracts and customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	8 years
Other acquired intangible assets, gross	99,556	88,853
Other acquired intangible assets, accumulated amortization	(74,019)	(62,245)
Other acquired intangible assets, net	25,537	26,608
Satellite co-location rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	9 years
Other acquired intangible assets, gross	8,600	8,600
Other acquired intangible assets, accumulated amortization	(4,893)	(3,969)
Other acquired intangible assets, net	3,707	4,631
Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	3 years
Other acquired intangible assets, gross	5,940	5,680
Other acquired intangible assets, accumulated amortization	(5,788)	(5,680)
Other acquired intangible assets, net	152
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	7 years
Other acquired intangible assets, gross	8,722	6,320
Other acquired intangible assets, accumulated amortization	(7,242)	(6,267)
Other acquired intangible assets, net	$ 1,480	$ 53