Financial Statements of Parent and Subsidiary Guarantors - Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 28, 2013	Jun. 29, 2012
Revenues:
Product revenues	$ 182,161	$ 147,729
Service revenues	138,941	94,034
Total revenues	321,102	241,763
Operating expenses:
Cost of product revenues	129,414	109,049
Cost of service revenues	105,893	78,569
Selling, general and administrative	64,781	56,501
Independent research and development	14,089	7,369
Amortization of acquired intangible assets	3,501	4,064
Income (loss) from operations	3,424	(13,789)
Other income (expense):
Interest income	21	60
Interest expense	(10,163)	(11,546)
Income (loss) before income taxes	(6,718)	(25,275)
Provision for (benefit from) income taxes	(5,231)	(10,842)
Equity in net income (loss) of consolidated subsidiaries
Net loss	(1,487)	(14,433)
Less: Net income (loss) attributable to noncontrolling interest, net of tax	347	(13)
Net income (loss) attributable to ViaSat, Inc.	(1,834)	(14,420)
Comprehensive income (loss)	(1,452)	(15,134)
Comprehensive income (loss) attributable to ViaSat, Inc.	(1,799)	(15,121)
Issuing Parent Company [Member]
Revenues:
Product revenues	172,676	143,174
Service revenues	57,483	37,360
Total revenues	230,159	180,534
Operating expenses:
Cost of product revenues	123,802	106,325
Cost of service revenues	42,094	24,354
Selling, general and administrative	36,737	31,143
Independent research and development	13,376	7,091
Amortization of acquired intangible assets	219	275
Income (loss) from operations	13,931	11,346
Other income (expense):
Interest income	20	58
Interest expense	(10,138)	(11,521)
Income (loss) before income taxes	3,813	(117)
Provision for (benefit from) income taxes	(264)	(1,320)
Equity in net income (loss) of consolidated subsidiaries	(5,911)	(15,623)
Net loss	(1,834)	(14,420)
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	(1,834)	(14,420)
Comprehensive income (loss)	(1,799)	(15,121)
Comprehensive income (loss) attributable to ViaSat, Inc.	(1,799)	(15,121)
Guarantor Subsidiaries [Member]
Revenues:
Product revenues	16	531
Service revenues	80,944	54,584
Total revenues	80,960	55,115
Operating expenses:
Cost of product revenues	113	82
Cost of service revenues	63,549	52,925
Selling, general and administrative	25,537	22,975
Independent research and development		150
Amortization of acquired intangible assets	2,765	3,238
Income (loss) from operations	(11,004)	(24,255)
Other income (expense):
Interest income
Interest expense	(25)	(20)
Income (loss) before income taxes	(11,029)	(24,275)
Provision for (benefit from) income taxes	(6,076)	(9,389)
Equity in net income (loss) of consolidated subsidiaries
Net loss	(4,953)	(14,886)
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	(4,953)	(14,886)
Comprehensive income (loss)	(4,953)	(14,886)
Comprehensive income (loss) attributable to ViaSat, Inc.	(4,953)	(14,886)
Non-Guarantor Subsidiaries [Member]
Revenues:
Product revenues	9,752	4,128
Service revenues	875	2,478
Total revenues	10,627	6,606
Operating expenses:
Cost of product revenues	5,755	2,722
Cost of service revenues	611	1,678
Selling, general and administrative	2,526	2,383
Independent research and development	721	152
Amortization of acquired intangible assets	517	551
Income (loss) from operations	497	(880)
Other income (expense):
Interest income	1	2
Interest expense		(5)
Income (loss) before income taxes	498	(883)
Provision for (benefit from) income taxes	1,109	(133)
Equity in net income (loss) of consolidated subsidiaries
Net loss	(611)	(750)
Less: Net income (loss) attributable to noncontrolling interest, net of tax
Net income (loss) attributable to ViaSat, Inc.	(611)	(750)
Comprehensive income (loss)	(786)	(1,475)
Comprehensive income (loss) attributable to ViaSat, Inc.	(786)	(1,475)
Consolidation and Elimination Adjustments [Member]
Revenues:
Product revenues	(283)	(104)
Service revenues	(361)	(388)
Total revenues	(644)	(492)
Operating expenses:
Cost of product revenues	(256)	(80)
Cost of service revenues	(361)	(388)
Selling, general and administrative	(19)
Independent research and development	(8)	(24)
Amortization of acquired intangible assets
Income (loss) from operations
Other income (expense):
Interest income
Interest expense
Income (loss) before income taxes
Provision for (benefit from) income taxes
Equity in net income (loss) of consolidated subsidiaries	5,911	15,623
Net loss	5,911	15,623
Less: Net income (loss) attributable to noncontrolling interest, net of tax	347	(13)
Net income (loss) attributable to ViaSat, Inc.	5,564	15,636
Comprehensive income (loss)	6,086	16,348
Comprehensive income (loss) attributable to ViaSat, Inc.	$ 5,739	$ 16,361