Segment Information - Other Net Acquired Intangible Assets and Goodwill Included in Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2013	Mar. 29, 2013
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 46,123	$ 47,170
Goodwill	82,632	83,000
Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	37,224	39,989
Goodwill	9,809	9,809
Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	3,777	1,520
Goodwill	43,664	43,648
Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	5,122	5,661
Goodwill	$ 29,159	$ 29,543