Segment Information - Other Net Acquired Intangible Assets and Goodwill Included in Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 03, 2014	Apr. 04, 2014
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	$ 51,270	$ 35,397
Goodwill	117,617	83,627
Operating Segments [Member] | Satellite Services [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	23,401	28,931
Goodwill	9,809	9,809
Operating Segments [Member] | Commercial Networks [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	2,179	2,583
Goodwill	44,009	44,148
Operating Segments [Member] | Government Systems [Member]
Segment Reporting Information [Line Items]
Other acquired intangible assets, net	25,690	3,883
Goodwill	$ 63,799	$ 29,670