Segment Information - Segment Revenues and Operating Profits (Losses) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Apr. 03, 2015	Apr. 04, 2014
Revenues:
Product revenues	$ 664,821	$ 728,074	$ 785,738
Service revenues	752,610	654,461	565,724
Total revenues	1,417,431	1,382,535	1,351,462
Operating profits (losses):
Income from operations	41,119	83,144	3,299
Amortization of acquired intangible assets	(16,438)	(17,966)	(14,614)
Operating Segments [Member]
Operating profits (losses):
Income from operations	57,557	101,110	17,913
Operating Segments [Member] | Satellite Services [Member]
Revenues:
Product revenues	25,606	33,576	42
Service revenues	533,628	466,284	390,666
Total revenues	559,234	499,860	390,708
Operating profits (losses):
Income from operations	81,830	62,379	(45,991)
Amortization of acquired intangible assets	(9,122)	(11,058)	(11,058)
Operating Segments [Member] | Commercial Networks [Member]
Revenues:
Product revenues	228,694	331,052	378,577
Service revenues	22,042	16,078	16,944
Total revenues	250,736	347,130	395,521
Operating profits (losses):
Income from operations	(111,339)	(33,616)	(12,134)
Amortization of acquired intangible assets	(2,569)	(1,452)	(1,337)
Operating Segments [Member] | Government Systems [Member]
Revenues:
Product revenues	410,521	363,446	407,119
Service revenues	196,940	172,099	158,114
Total revenues	607,461	535,545	565,233
Operating profits (losses):
Income from operations	87,066	72,347	76,038
Amortization of acquired intangible assets	(4,747)	(5,456)	(2,219)
Material Reconciling Items [Member]
Operating profits (losses):
Amortization of acquired intangible assets	$ (16,438)	$ (17,966)	$ (14,614)