Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended		6 Months Ended			0 Months Ended	3 Months Ended		1 Months Ended
	Sep. 05, 2014	Apr. 24, 2014	Oct. 03, 2014	Oct. 04, 2013	Oct. 03, 2014	Oct. 04, 2013	Apr. 04, 2014	Sep. 05, 2014 Implied license [Member]	Oct. 03, 2014 Past damages [Member]	Oct. 03, 2014 Satellite Services [Member] Implied license [Member]	May 31, 2013 Satellite - ViaSat-2 (under construction) [Member] Capital Addition Purchase Commitments [Member]
Loss Contingencies [Line Items]
Purchase price under agreement											$ 358,000,000
Litigation settlement amount	108,712,000	283,000,000						85,132,000
Proceeds from legal settlement			40,000,000
Product revenues			193,924,000	210,391,000	362,053,000	392,552,000				21,000,000
Selling, general and administrative expenses			54,404,000	73,593,000	123,500,000	138,374,000			18,700,000
Interest income			346,000	4,000	372,000	25,000
Total U.S. government contract-related reserves balance			$ 5,200,000		$ 5,200,000		$ 6,700,000