Financial Statements of Parent and Subsidiary Guarantors - Condensed Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2013	Mar. 29, 2013	Jun. 29, 2012	Mar. 30, 2012
Current assets:
Cash and cash equivalents	$ 79,682	$ 105,738	$ 129,892	$ 172,583
Accounts receivable, net	260,701	266,970
Inventories	125,692	106,281
Deferred income taxes	25,015	25,065
Prepaid expenses and other current assets	39,229	40,819
Current portion of intercompany receivables
Total current assets	530,319	544,873
Other acquired intangible assets, net	46,123	47,170
Goodwill	82,632	83,000
Investments in subsidiaries and intercompany receivables
Other assets	219,740	205,248
Total assets	1,837,271	1,794,072
Current liabilities:
Accounts payable	121,309	83,009
Accrued liabilities	145,370	161,909
Current portion of other long-term debt	1,910	2,230
Current portion of intercompany payables
Total current liabilities	268,589	247,148
Senior notes, net	584,717	584,993
Other long-term debt	1,456	1,456
Intercompany payables
Other liabilities	52,548	52,640
Total liabilities	907,310	886,237
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	924,780	903,001
Noncontrolling interest in subsidiary	5,181	4,834
Total equity	929,961	907,835
Total liabilities and equity	1,837,271	1,794,072
Property Plant and Equipment - Satellites [Member]
Current assets:
Property and equipment, net	559,244	535,090
Property Plant and Equipment - Excluding Satellites [Member]
Current assets:
Property and equipment, net	399,213	378,691
Issuing Parent Company [Member]
Current assets:
Cash and cash equivalents	63,810	93,780	117,893	162,426
Accounts receivable, net	237,119	240,457
Inventories	101,438	81,195
Deferred income taxes	22,300	22,350
Prepaid expenses and other current assets	31,785	32,372
Current portion of intercompany receivables	134,023	128,383
Total current assets	590,475	598,537
Other acquired intangible assets, net	1,378	1,597
Goodwill	63,940	63,939
Investments in subsidiaries and intercompany receivables	378,024	381,338
Other assets	163,308	154,854
Total assets	1,769,415	1,727,202
Current liabilities:
Accounts payable	107,174	71,931
Accrued liabilities	113,583	128,374
Current portion of other long-term debt	420	454
Current portion of intercompany payables	1,547	1,631
Total current liabilities	222,724	202,390
Senior notes, net	584,717	584,993
Other long-term debt	380	380
Intercompany payables	303	302
Other liabilities	36,511	36,136
Total liabilities	844,635	824,201
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	924,780	903,001
Noncontrolling interest in subsidiary
Total equity	924,780	903,001
Total liabilities and equity	1,769,415	1,727,202
Issuing Parent Company [Member] | Property Plant and Equipment - Satellites [Member]
Current assets:
Property and equipment, net	368,827	337,437
Issuing Parent Company [Member] | Property Plant and Equipment - Excluding Satellites [Member]
Current assets:
Property and equipment, net	203,463	189,500
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	4,636	3,112	1,896	439
Accounts receivable, net	16,253	15,537
Inventories	18,718	19,985
Deferred income taxes	2,425	2,425
Prepaid expenses and other current assets	6,774	7,819
Current portion of intercompany receivables	1,581	1,581
Total current assets	50,387	50,459
Other acquired intangible assets, net	37,225	39,989
Goodwill	9,686	9,686
Investments in subsidiaries and intercompany receivables	1,439	1,439
Other assets	55,665	49,645
Total assets	534,647	532,098
Current liabilities:
Accounts payable	13,111	9,999
Accrued liabilities	25,917	26,916
Current portion of other long-term debt	1,490	1,776
Current portion of intercompany payables	133,347	127,215
Total current liabilities	173,865	165,906
Senior notes, net
Other long-term debt	1,076	1,076
Intercompany payables
Other liabilities	14,679	15,137
Total liabilities	189,620	182,119
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	345,027	349,979
Noncontrolling interest in subsidiary
Total equity	345,027	349,979
Total liabilities and equity	534,647	532,098
Guarantor Subsidiaries [Member] | Property Plant and Equipment - Satellites [Member]
Current assets:
Property and equipment, net	190,417	197,653
Guarantor Subsidiaries [Member] | Property Plant and Equipment - Excluding Satellites [Member]
Current assets:
Property and equipment, net	189,828	183,227
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	11,236	8,846	10,103	9,718
Accounts receivable, net	7,329	10,976
Inventories	5,536	5,101
Deferred income taxes	290	290
Prepaid expenses and other current assets	670	628
Current portion of intercompany receivables	1,547	1,631
Total current assets	26,608	27,472
Other acquired intangible assets, net	7,520	5,584
Goodwill	9,006	9,375
Investments in subsidiaries and intercompany receivables	303	303
Other assets	767	749
Total assets	50,126	49,447
Current liabilities:
Accounts payable	1,024	1,079
Accrued liabilities	5,870	6,619
Current portion of other long-term debt
Current portion of intercompany payables	2,257	2,750
Total current liabilities	9,151	10,448
Senior notes, net
Other long-term debt
Intercompany payables	6,681	6,319
Other liabilities	1,358	1,367
Total liabilities	17,190	18,134
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	32,936	31,313
Noncontrolling interest in subsidiary
Total equity	32,936	31,313
Total liabilities and equity	50,126	49,447
Non-Guarantor Subsidiaries [Member] | Property Plant and Equipment - Satellites [Member]
Current assets:
Property and equipment, net
Non-Guarantor Subsidiaries [Member] | Property Plant and Equipment - Excluding Satellites [Member]
Current assets:
Property and equipment, net	5,922	5,964
Consolidation and Elimination Adjustments [Member]
Current assets:
Cash and cash equivalents
Accounts receivable, net
Inventories
Deferred income taxes
Prepaid expenses and other current assets
Current portion of intercompany receivables	(137,151)	(131,595)
Total current assets	(137,151)	(131,595)
Other acquired intangible assets, net
Goodwill
Investments in subsidiaries and intercompany receivables	(379,766)	(383,080)
Other assets
Total assets	(516,917)	(514,675)
Current liabilities:
Accounts payable
Accrued liabilities
Current portion of other long-term debt
Current portion of intercompany payables	(137,151)	(131,596)
Total current liabilities	(137,151)	(131,596)
Senior notes, net
Other long-term debt
Intercompany payables	(6,984)	(6,621)
Other liabilities
Total liabilities	(144,135)	(138,217)
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	(377,963)	(381,292)
Noncontrolling interest in subsidiary	5,181	4,834
Total equity	(372,782)	(376,458)
Total liabilities and equity	(516,917)	(514,675)
Consolidation and Elimination Adjustments [Member] | Property Plant and Equipment - Satellites [Member]
Current assets:
Property and equipment, net
Consolidation and Elimination Adjustments [Member] | Property Plant and Equipment - Excluding Satellites [Member]
Current assets:
Property and equipment, net