Condensed Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010
Current assets:
Cash and cash equivalents	$ 105,738	$ 172,583	$ 40,490	$ 89,631
Accounts receivable, net	266,970	211,690
Inventories	106,281	127,646
Deferred income taxes	25,065	20,316
Prepaid expenses and other current assets	40,819	30,917
Total current assets	544,873	563,152
Satellites, net	535,090	585,731
Property and equipment, net	378,691	294,973
Other acquired intangible assets, net	47,170	63,041
Goodwill	83,000	83,461
Other assets	205,248	136,795
Total assets	1,794,072	1,727,153
Current liabilities:
Accounts payable	83,009	75,040
Accrued liabilities	161,909	159,762
Current portion of other long-term debt	2,230	1,240
Total current liabilities	247,148	236,042
Senior notes, net	584,993	547,791
Other long-term debt	1,456	774
Other liabilities	52,640	50,353
Total liabilities	886,237	834,960
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	903,001	887,975
Noncontrolling interest in subsidiary	4,834	4,218
Total equity	907,835	892,193	844,241	756,750
Total liabilities and equity	1,794,072	1,727,153
Issuing Parent Company [Member]
Current assets:
Cash and cash equivalents	93,780	162,426	24,347	66,258
Accounts receivable, net	240,457	192,313
Inventories	81,195	106,151
Deferred income taxes	22,350	18,482
Prepaid expenses and other current assets	32,372	27,128
Current portion of intercompany receivables	128,383
Total current assets	598,537	506,500
Satellites, net	337,437	358,580
Property and equipment, net	189,500	178,611
Other acquired intangible assets, net	1,597	2,633
Goodwill	63,939	63,939
Investments in subsidiaries and intercompany receivables	381,338	437,631
Other assets	154,854	117,300
Total assets	1,727,202	1,665,194
Current liabilities:
Accounts payable	71,931	62,085
Accrued liabilities	128,374	128,327
Current portion of other long-term debt	454	129
Current portion of intercompany payables	1,631
Total current liabilities	202,390	190,541
Senior notes, net	584,993	547,791
Other long-term debt	380	74
Intercompany payables	302	1,428
Other liabilities	36,136	37,385
Total liabilities	824,201	777,219
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	903,001	887,975
Total equity	903,001	887,975
Total liabilities and equity	1,727,202	1,665,194
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	3,112	439	7,600	16,216
Accounts receivable, net	15,537	12,411
Inventories	19,985	16,474
Deferred income taxes	2,425	1,526
Prepaid expenses and other current assets	7,819	2,923
Current portion of intercompany receivables	1,581
Total current assets	50,459	33,773
Satellites, net	197,653	227,151
Property and equipment, net	183,227	110,137
Other acquired intangible assets, net	39,989	52,389
Goodwill	9,686	9,687
Investments in subsidiaries and intercompany receivables	1,439	2,501
Other assets	49,645	18,886
Total assets	532,098	454,524
Current liabilities:
Accounts payable	9,999	12,192
Accrued liabilities	26,916	27,477
Current portion of other long-term debt	1,776	1,111
Current portion of intercompany payables	127,215
Total current liabilities	165,906	40,780
Other long-term debt	1,076	700
Intercompany payables		4,462
Other liabilities	15,137	10,269
Total liabilities	182,119	56,211
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	349,979	398,313
Total equity	349,979	398,313
Total liabilities and equity	532,098	454,524
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	8,846	9,718	8,543	7,157
Accounts receivable, net	10,976	6,966
Inventories	5,101	5,021
Deferred income taxes	290	308
Prepaid expenses and other current assets	628	866
Current portion of intercompany receivables	1,631
Total current assets	27,472	22,879
Property and equipment, net	5,964	6,225
Other acquired intangible assets, net	5,584	8,019
Goodwill	9,375	9,835
Investments in subsidiaries and intercompany receivables	303	1,428
Other assets	749	609
Total assets	49,447	48,995
Current liabilities:
Accounts payable	1,079	763
Accrued liabilities	6,619	3,958
Current portion of intercompany payables	2,750
Total current liabilities	10,448	4,721
Intercompany payables	6,319	9,429
Other liabilities	1,367	2,699
Total liabilities	18,134	16,849
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	31,313	32,146
Total equity	31,313	32,146
Total liabilities and equity	49,447	48,995
Consolidation and Elimination Adjustments [Member]
Current assets:
Current portion of intercompany receivables	(131,595)
Total current assets	(131,595)
Investments in subsidiaries and intercompany receivables	(383,080)	(441,560)
Total assets	(514,675)	(441,560)
Current liabilities:
Current portion of intercompany payables	(131,596)
Total current liabilities	(131,596)
Intercompany payables	(6,621)	(15,319)
Total liabilities	(138,217)	(15,319)
ViaSat, Inc. stockholders' equity
Total ViaSat, Inc. stockholders' equity	(381,292)	(430,459)
Noncontrolling interest in subsidiary	4,834	4,218
Total equity	(376,458)	(426,241)
Total liabilities and equity	$ (514,675)	$ (441,560)