Segment Information - Segment Revenues, Operating (Losses) Profits and Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 04, 2014	Mar. 29, 2013	Mar. 30, 2012
Revenues:
Product revenues	$ 785,738	$ 664,417	$ 542,064
Service revenues	565,724	455,273	321,563
Total revenues	1,351,462	1,119,690	863,627
Operating (losses) profits:
Amortization of acquired intangible assets	(14,614)	(15,584)	(18,732)
Income (loss) from operations	3,299	(20,362)	2,194
Assets
Total assets	1,960,115	1,794,072
Satellite Services [Member]
Operating (losses) profits:
Amortization of acquired intangible assets	(11,058)	(12,401)	(12,951)
Commercial Networks [Member]
Operating (losses) profits:
Amortization of acquired intangible assets	(1,337)	(666)	(3,224)
Government Systems [Member]
Operating (losses) profits:
Amortization of acquired intangible assets	(2,219)	(2,517)	(2,557)
Operating Segments [Member]
Operating (losses) profits:
Income (loss) from operations	17,913	(4,778)	20,926
Assets
Total assets	509,685	503,232
Operating Segments [Member] | Satellite Services [Member]
Revenues:
Product revenues	42	4,715	2,998
Service revenues	390,666	272,272	219,674
Total revenues	390,708	276,987	222,672
Operating (losses) profits:
Income (loss) from operations	(45,991)	(79,172)	(16,790)
Assets
Total assets	73,382	89,945
Operating Segments [Member] | Commercial Networks [Member]
Revenues:
Product revenues	378,577	295,469	229,941
Service revenues	16,944	19,471	21,736
Total revenues	395,521	314,940	251,677
Operating (losses) profits:
Income (loss) from operations	(12,134)	(11,079)	(12,974)
Assets
Total assets	229,455	175,230
Operating Segments [Member] | Government Systems [Member]
Revenues:
Product revenues	407,119	364,233	309,125
Service revenues	158,114	163,530	80,153
Total revenues	565,233	527,763	389,278
Operating (losses) profits:
Income (loss) from operations	76,038	85,473	50,690
Assets
Total assets	206,848	238,057
Intersegment Elimination [Member]
Revenues:
Total revenues
Operating (losses) profits:
Income (loss) from operations
Corporate, Non-Segment [Member]
Operating (losses) profits:
Income (loss) from operations
Assets
Total assets	1,450,430	1,290,840
Material Reconciling Items [Member]
Operating (losses) profits:
Amortization of acquired intangible assets	$ (14,614)	$ (15,584)	$ (18,732)