The Company and a Summary of Its Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 04, 2014	Mar. 29, 2013	Mar. 30, 2012
Company And Summary Of Significant Accounting Policies [Line Items]
Capitalized interest expense	$ 8,100,000	$ 3,100,000	$ 25,900,000
CPE leased equipment, total cost	221,000,000	170,900,000
Total capitalized costs related to patents	3,200,000	3,200,000
Total capitalized costs related to orbital slots and other licenses	13,500,000	8,600,000
Accumulated amortization of patents and other licenses	1,000,000	700,000
Amortization expense related to patents and other licenses	0	0	0
Impairment of long-lived assets (property, equipment, and satellites, and other assets) recorded	0	0	0
Payment of debt issuance costs	2,512,000	8,059,000	5,706,000
Capitalized costs, net, related to software developed for resale	91,022,000	60,596,000
Capitalized cost related to software development for resale	41,500,000	25,800,000
Amortization expense of software development costs	11,100,000	7,200,000	5,200,000
Impairment of goodwill recorded by the Company	0	0	0
Maximum warranty periods provided on limited warranty	5 years
Property Plant and Equipment - Excluding Satellites [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Accumulated depreciation and amortization	360,086,000	282,790,000
Property Plant and Equipment - Excluding Satellites [Member] | CPE leased equipment [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Accumulated depreciation and amortization	79,800,000	51,500,000
Minimum [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Property, equipment and satellites, estimated useful life (years)	2 years
Estimated useful life, years	3 years
Minimum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | CPE leased equipment [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Property, equipment and satellites, estimated useful life (years)	4 years
Maximum [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Property, equipment and satellites, estimated useful life (years)	24 years
Estimated useful life, years	10 years
Maximum [Member] | Property Plant and Equipment - Excluding Satellites [Member] | CPE leased equipment [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Property, equipment and satellites, estimated useful life (years)	5 years
Software Development Costs [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, years	5 years
Technology [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Purchase price allocated to acquired intangible assets	$ 2,400,000
Percentage of total revenues from the U.S. government [Member] | Sales revenue, net [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	21.20%	24.10%	19.90%
Percentage of total revenues from the U.S. government [Member] | Percentage of total billed receivables from the U.S. government [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	22.30%	37.90%
Percentage of total revenues from the Company's five largest contracts [Member] | Sales revenue, net [Member]
Company And Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	26.40%	24.00%	19.60%