Segment Information - Other Net Acquired Intangible Assets, Net and Goodwill Included in Segment Assets and Amortization of Acquired Intangible Assets by Segment (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 03, 2015	Apr. 04, 2014	Mar. 29, 2013
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 42,340	$ 35,397
Goodwill	117,241	83,627
Amortization of acquired intangible assets	17,966	14,614	15,584
Satellite Services [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	11,058	11,058	12,401
Commercial Networks [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	1,452	1,337	666
Government Systems [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	5,456	2,219	2,517
Operating Segments [Member] | Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	17,873	28,931
Goodwill	9,809	9,809
Operating Segments [Member] | Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	1,443	2,583
Goodwill	43,994	44,148
Operating Segments [Member] | Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	23,024	3,883
Goodwill	$ 63,438	$ 29,670