Financial Statements of Parent and Subsidiary Guarantors (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2012	Jul. 01, 2011
Revenues:
Product revenues	$ 147,729	$ 122,546
Service revenues	94,034	72,555
Total revenues	241,763	195,101
Operating expenses:
Cost of product revenues	109,049	92,285
Cost of service revenues	78,569	49,316
Selling, general and administrative	56,501	41,733
Independent research and development	7,369	5,694
Amortization of acquired intangible assets	4,064	4,772
(Loss) income from operations	(13,789)	1,301
Other income (expense):
Interest income	60	26
Interest expense	(11,546)
Income (loss) before income taxes	(25,275)	1,327
Provision for (benefit from) income taxes	(10,842)	(267)
Net income	(14,433)	1,594
Less: Net loss attributable to the noncontrolling interest, net of tax	(13)	(165)
Net income (loss) attributable to ViaSat, Inc.	(14,420)	1,759
Comprehensive income (loss) attributable to ViaSat, Inc	(15,121)	1,939
Issuing Parent Company [Member]
Revenues:
Product revenues	143,174	118,913
Service revenues	37,360	17,697
Total revenues	180,534	136,610
Operating expenses:
Cost of product revenues	106,325	89,564
Cost of service revenues	24,354	10,892
Selling, general and administrative	31,143	26,615
Independent research and development	7,091	5,365
Amortization of acquired intangible assets	275	970
(Loss) income from operations	11,346	3,204
Other income (expense):
Interest income	58	133
Interest expense	(11,521)
Income (loss) before income taxes	(117)	3,337
Provision for (benefit from) income taxes	(1,320)	(20)
Equity in net income (loss) of consolidated subsidiaries	(15,623)	(1,901)
Net income	(14,420)	1,456
Net income (loss) attributable to ViaSat, Inc.	(14,420)	1,456
Comprehensive income (loss) attributable to ViaSat, Inc	(15,121)	1,636
Guarantor Subsidiaries [Member]
Revenues:
Product revenues	531	652
Service revenues	54,584	53,351
Total revenues	55,115	54,003
Operating expenses:
Cost of product revenues	82	757
Cost of service revenues	52,925	37,136
Selling, general and administrative	22,975	13,077
Independent research and development	150
Amortization of acquired intangible assets	3,238	3,238
(Loss) income from operations	(24,255)	(205)
Other income (expense):
Interest expense	(20)
Income (loss) before income taxes	(24,275)	(205)
Provision for (benefit from) income taxes	(9,389)	(90)
Net income	(14,886)	(115)
Net income (loss) attributable to ViaSat, Inc.	(14,886)	(115)
Comprehensive income (loss) attributable to ViaSat, Inc	(14,886)	(115)
Non-Guarantor Subsidiaries [Member]
Revenues:
Product revenues	4,128	3,250
Service revenues	2,478	2,226
Total revenues	6,606	5,476
Operating expenses:
Cost of product revenues	2,722	2,573
Cost of service revenues	1,678	1,958
Selling, general and administrative	2,383	2,044
Independent research and development	152	338
Amortization of acquired intangible assets	551	564
(Loss) income from operations	(880)	(2,001)
Other income (expense):
Interest income	2	2
Interest expense	(5)	(109)
Income (loss) before income taxes	(883)	(2,108)
Provision for (benefit from) income taxes	(133)	(157)
Net income	(750)	(1,951)
Net income (loss) attributable to ViaSat, Inc.	(750)	(1,951)
Comprehensive income (loss) attributable to ViaSat, Inc	(1,475)	(1,508)
Consolidation and Elimination Adjustments [Member]
Revenues:
Product revenues	(104)	(269)
Service revenues	(388)	(719)
Total revenues	(492)	(988)
Operating expenses:
Cost of product revenues	(80)	(609)
Cost of service revenues	(388)	(670)
Selling, general and administrative		(3)
Independent research and development	(24)	(9)
(Loss) income from operations		303
Other income (expense):
Interest income		(109)
Interest expense		109
Income (loss) before income taxes		303
Equity in net income (loss) of consolidated subsidiaries	15,623	1,901
Net income	15,623	2,204
Less: Net loss attributable to the noncontrolling interest, net of tax	(13)	(165)
Net income (loss) attributable to ViaSat, Inc.	15,636	2,369
Comprehensive income (loss) attributable to ViaSat, Inc	$ 16,361	$ 1,926