Segment Information - Other Net Acquired Intangible Assets and Goodwill Included in Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 04, 2013	Mar. 29, 2013
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 42,608	$ 47,170
Goodwill	83,139	83,000
Operating Segments [Member] | Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	34,459	39,989
Goodwill	9,809	9,809
Operating Segments [Member] | Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	3,268	1,520
Goodwill	43,754	43,648
Operating Segments [Member] | Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	4,881	5,661
Goodwill	$ 29,576	$ 29,543