Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011
Revenues:
Product revenues	$ 664,417	$ 542,064	$ 523,938
Service revenues	455,273	321,563	278,268
Total revenues	1,119,690	863,627	802,206
Operating expenses:
Cost of product revenues	484,973	402,794	389,945
Cost of service revenues	363,188	233,187	160,623
Selling, general and administrative	240,859	181,728	164,265
Independent research and development	35,448	24,992	28,711
Amortization of acquired intangible assets	15,584	18,732	19,409
Income (loss) from operations	(20,362)	2,194	39,253
Other income (expense):
Interest income	173	60	323
Interest expense	(43,993)	(8,307)	(3,154)
Loss on extinguishment of debt	(26,501)
Income (loss) before income taxes	(90,683)	(6,053)	36,422
Provision for (benefit from) income taxes	(50,054)	(13,651)	(2)
Equity in net income (loss) of consolidated subsidiaries
Net (loss) income	(40,629)	7,598	36,424
Less: Net income (loss) attributable to noncontrolling interest, net of tax	543	102	309
Net income (loss) attributable to ViaSat, Inc.	(41,172)	7,496	36,115
Comprehensive income (loss)	(41,462)	6,760	38,242
Comprehensive income (loss) attributable to ViaSat, Inc.	(42,005)	6,658	37,933
Issuing Parent Company [Member]
Revenues:
Product revenues	631,067	514,577	505,634
Service revenues	193,478	106,548	53,701
Total revenues	824,545	621,125	559,335
Operating expenses:
Cost of product revenues	463,553	384,858	375,635
Cost of service revenues	133,404	66,833	34,339
Selling, general and administrative	133,273	119,227	104,235
Independent research and development	34,274	24,109	27,807
Amortization of acquired intangible assets	1,037	3,569	4,672
Income (loss) from operations	59,004	22,529	12,647
Other income (expense):
Interest income	168	264	687
Interest expense	(43,916)	(8,199)	(3,103)
Loss on extinguishment of debt	(26,501)
Income (loss) before income taxes	(11,245)	14,594	10,231
Provision for (benefit from) income taxes	(18,861)	(7,407)	(10,188)
Equity in net income (loss) of consolidated subsidiaries	(48,788)	(15,360)	15,654
Net (loss) income	(41,172)	6,641	36,073
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	(41,172)	6,641	36,073
Comprehensive income (loss)	42,005	5,803	37,891
Comprehensive income (loss) attributable to ViaSat, Inc.	42,005	5,803	37,891
Guarantor Subsidiaries [Member]
Revenues:
Product revenues	4,714	2,998	5,546
Service revenues	254,796	206,470	215,267
Total revenues	259,510	209,468	220,813
Operating expenses:
Cost of product revenues	3,383	2,902	8,228
Cost of service revenues	225,730	160,579	121,024
Selling, general and administrative	96,346	53,051	50,946
Independent research and development	525
Amortization of acquired intangible assets	12,400	12,954	12,954
Income (loss) from operations	(78,874)	(20,018)	27,661
Other income (expense):
Interest income
Interest expense	(72)	(108)	(49)
Income (loss) before income taxes	(78,946)	(20,126)	27,612
Provision for (benefit from) income taxes	(30,612)	(6,038)	10,325
Equity in net income (loss) of consolidated subsidiaries
Net (loss) income	(48,334)	(14,088)	17,287
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	(48,334)	(14,088)	17,287
Comprehensive income (loss)	(48,334)	(14,088)	17,287
Comprehensive income (loss) attributable to ViaSat, Inc.	(48,334)	(14,088)	17,287
Non-Guarantor Subsidiaries [Member]
Revenues:
Product revenues	29,141	24,767	16,583
Service revenues	8,531	10,482	10,994
Total revenues	37,672	35,249	27,577
Operating expenses:
Cost of product revenues	18,463	16,711	9,426
Cost of service revenues	5,587	7,612	6,926
Selling, general and administrative	11,248	9,453	9,123
Independent research and development	719	928	924
Amortization of acquired intangible assets	2,147	2,209	1,783
Income (loss) from operations	(492)	(1,664)	(605)
Other income (expense):
Interest income	5	6	9
Interest expense	(5)	(210)	(375)
Income (loss) before income taxes	(492)	(1,868)	(971)
Provision for (benefit from) income taxes	(581)	(698)	353
Equity in net income (loss) of consolidated subsidiaries
Net (loss) income	89	(1,170)	(1,324)
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	89	(1,170)	(1,324)
Comprehensive income (loss)	(874)	(1,351)	611
Comprehensive income (loss) attributable to ViaSat, Inc.	(874)	(1,351)	611
Consolidation and Elimination Adjustments [Member]
Revenues:
Product revenues	(505)	(278)	(3,825)
Service revenues	(1,532)	(1,937)	(1,694)
Total revenues	(2,037)	(2,215)	(5,519)
Operating expenses:
Cost of product revenues	(426)	(1,677)	(3,344)
Cost of service revenues	(1,533)	(1,837)	(1,666)
Selling, general and administrative	(8)	(3)	(39)
Independent research and development	(70)	(45)	(20)
Amortization of acquired intangible assets
Income (loss) from operations		1,347	(450)
Other income (expense):
Interest income		(210)	(373)
Interest expense		210	373
Income (loss) before income taxes		1,347	(450)
Provision for (benefit from) income taxes		492	(492)
Equity in net income (loss) of consolidated subsidiaries	48,788	15,360	(15,654)
Net (loss) income	48,788	16,215	(15,612)
Less: Net income (loss) attributable to noncontrolling interest, net of tax	543	102	309
Net income (loss) attributable to ViaSat, Inc.	48,245	16,113	(15,921)
Comprehensive income (loss)	49,751	16,396	(17,547)
Comprehensive income (loss) attributable to ViaSat, Inc.	$ 49,208	$ 16,294	$ (17,856)