Segment Information - Amortization of Acquired Intangible Assets by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 03, 2014	Dec. 28, 2012	Jan. 03, 2014	Dec. 28, 2012
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	$ 3,652	$ 3,960	$ 10,949	$ 12,065
Satellite Services [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	2,765	3,159	8,295	9,635
Commercial Networks [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	343	163	994	523
Government Systems [Member]
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	$ 544	$ 638	$ 1,660	$ 1,907