Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2012	Apr. 01, 2011
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	$ 63,041	$ 81,889
Goodwill	83,461	83,532
Satellite Services [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	52,390	65,341
Goodwill	9,809	9,809
Commercial Networks [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	2,186	5,391
Goodwill	43,739	43,700
Government Systems [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	8,465	11,157
Goodwill	$ 29,913	$ 30,023