Segment Information - Other Acquired Intangible Assets, Net and Goodwill Included in Segment Assets and Amortization of Acquired Intangible Assets by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Apr. 03, 2015	Apr. 04, 2014
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 33,604	$ 42,340
Goodwill	117,040	117,241
Amortization of acquired intangible assets	16,438	17,966	$ 14,614
Operating Segments [Member] | Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	8,751	17,873
Goodwill	9,809	9,809
Amortization of acquired intangible assets	9,122	11,058	11,058
Operating Segments [Member] | Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	6,581	1,443
Goodwill	43,990	43,994
Amortization of acquired intangible assets	2,569	1,452	1,337
Operating Segments [Member] | Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	18,272	23,024
Goodwill	63,241	63,438
Amortization of acquired intangible assets	$ 4,747	$ 5,456	$ 2,219