Segment Information - Other Net Acquired Intangible Assets and Goodwill Included in Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 03, 2014	Mar. 29, 2013
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 39,042	$ 47,170
Goodwill	83,299	83,000
Operating Segments [Member] | Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	31,694	39,989
Goodwill	9,809	9,809
Operating Segments [Member] | Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	2,926	1,520
Goodwill	43,766	43,648
Operating Segments [Member] | Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	4,422	5,661
Goodwill	$ 29,724	$ 29,543