Shares Used In Computing Diluted Net Income Per Share (Details) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010
Shares used in computing diluted net income per share
Weighted average common shares outstanding used in calculating basic net income per share attributable to ViaSat, Inc. common stockholders	42,325	40,858	33,020
Weighted average options to purchase common stock as determined by application of the treasury stock method	1,352	1,611	1,404
Weighted average restricted stock units to acquire common stock as determined by application of the treasury stock method	435	428	272
Weighted average potentially issuable shares in connection with certain terms of the amended ViaSat 401(k) Profit Sharing Plan and Employee Stock Purchase Plan equivalents	114	162	143
Weighted average shares used in computing diluted net income per share attributable to ViaSat, Inc. common stockholders	44,226	43,059	34,839