Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2012	Mar. 30, 2012
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	$ 58,815	$ 63,041
Goodwill	83,171	83,461
Satellite Services [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	49,152	52,390
Goodwill	9,809	9,809
Commercial Networks [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	2,002	2,186
Goodwill	43,623	43,739
Government Systems [Member]
Other net acquired intangible assets and goodwill included in segment assets
Other acquired intangible assets, net	7,661	8,465
Goodwill	$ 29,739	$ 29,913