Common Stock and Stock Plans (Details Textual) (USD $)	1 Months Ended	12 Months Ended			185 Months Ended	1 Months Ended	12 Months Ended										12 Months Ended
	Mar. 31, 2010	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010	Mar. 30, 2012	Mar. 31, 2010 WildBlue Investors [Member]	Mar. 30, 2012 Common Stock [Member]	Apr. 01, 2011 Common Stock [Member]	Apr. 02, 2010 Common Stock [Member]	Apr. 02, 2010 Proceeds Used to Repay Credit Facility [Member]	Apr. 01, 2011 Viasat Inc [Member]	Apr. 02, 2010 Viasat Inc [Member]	Mar. 30, 2012 Equity Participation Plan [Member]	Apr. 01, 2011 Equity Participation Plan [Member]	Apr. 02, 2010 Equity Participation Plan [Member]	Nov. 30, 1996 Equity Participation Plan [Member]	Mar. 30, 2012 Employee Stock Options [Member] Y	Mar. 30, 2012 Restricted Stock Units [Member]	Apr. 01, 2011 Restricted Stock Units [Member]	Apr. 02, 2010 Restricted Stock Units [Member]	Mar. 30, 2012 Employee Stock Purchase Plan [Member]	Apr. 01, 2011 Employee Stock Purchase Plan [Member]	Apr. 02, 2010 Employee Stock Purchase Plan [Member]	Nov. 30, 1996 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock issued under public offering, net of issuance costs, shares									3,173,962
Unrecognized compensation cost related to unvested stock-based compensation arrangements													$ 61,400,000								$ 500,000
Weighted average period over which unrecognized compensation cost is expected to be recognized																	2.6
Weighted average estimated fair value of employee stock options granted		$ 17.36	$ 14.24	$ 10.55
Sales of stock in underwritten public offering by the Company and third party	6,900,000					3,726,038
Maximum number of shares reserved for issuance													17,400,000			2,500,000					2,250,000			1,500,000
Proceeds from common stock issued under public offering, net of issuance costs				100,533,000						80,000,000		100,533,000
Compensation cost charged against income		21,382,000	17,440,000	12,212,000									20,000,000	16,200,000	10,900,000			16,700,000	12,600,000	7,400,000	1,400,000	1,200,000	1,300,000
Common Stock and Stock Plans (Textual) [Abstract]
Incremental tax benefit from stock options exercised and restricted stock unit awards vesting		0	867,000	0							867,000
Weighted average estimated fair value of restricted stock units granted		$ 44.28	$ 41.48	$ 29.19
Weighted average estimated fair value of employee stock purchase plan shares issued		$ 11.74	$ 8.55	$ 7.84	$ 11.74
Compensation costs capitalized		1,600,000	0	0
Stock options exercised, intrinsic value		20,800,000	21,300,000	11,300,000
Plan share reserve		Shares of the Company’s common stock granted under the Equity Participation Plan as an award other than as an option or as a stock appreciation right with a per share purchase price lower than 100% of fair market value on the date of grant are counted against the Equity Participation Plan share reserve as two shares for each share of common stock up to September 22, 2010 and subsequently as 2.65 shares for each share of common stock
Discount on the fair market value of common stock purchased under the Employee Stock Purchase Plan		85.00%
Total fair value of shares vested related to restricted stock units		$ 15,100,000	$ 11,300,000	$ 5,500,000
Options granted, Shares		368,000	266,250	383,900	9,320,033
Restricted stock units, shares awarded		684,692	630,056	831,250	3,053,239
Issuance of stock under Employee Stock Purchase Plan, shares					1,837,156		126,302	159,940	168,640