Composition of Certain Balance Sheet Captions - Composition of Certain Balance Sheet Captions (Parenthetical) (Detail)	9 Months Ended
	Jan. 03, 2014
Technology [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Other acquired intangible assets, weighted average useful life	6 years
Contracts and customer relationships [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Other acquired intangible assets, weighted average useful life	7 years
Satellite co-location rights [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Other acquired intangible assets, weighted average useful life	9 years
Trade name [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Other acquired intangible assets, weighted average useful life	3 years
Other [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Other acquired intangible assets, weighted average useful life	9 years
Property Plant and Equipment - Satellites [Member] | Satellite - WildBlue-1 [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	10 years
Property Plant and Equipment - Satellites [Member] | Capital lease of satellite capacity - Anik F2 [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	10 years
Property Plant and Equipment - Satellites [Member] | Satellite - ViaSat-1 [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	17 years
Property Plant and Equipment - Excluding Satellites [Member] | Furniture and fixtures [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	7 years
Property Plant and Equipment - Excluding Satellites [Member] | Building [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	24 years
Minimum [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	2 years
Minimum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Machinery and equipment [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	2 years
Minimum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Computer equipment and software [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	2 years
Minimum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | CPE leased equipment [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	4 years
Minimum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Leasehold improvements [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	2 years
Maximum [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	24 years
Maximum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Machinery and equipment [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	5 years
Maximum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Computer equipment and software [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	7 years
Maximum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | CPE leased equipment [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	5 years
Maximum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | Leasehold improvements [Member]
Schedule Of Composition Of Certain Balance Sheet Captions [Line Items]
Property, equipment and satellites, estimated useful life (years)	17 years