Common Stock and Stock Plans (Details 1)	12 Months Ended
	Mar. 30, 2012 Y	Apr. 01, 2011 Y	Apr. 02, 2010 Y
Employee Stock Purchase Plan [Member]
Summary of employee stock options and employee stock purchase plan weighted average assumptions
Volatility	38.40%	28.30%	43.70%
Risk-free interest rate	0.10%	0.20%	0.30%
Dividend yield	0.00%	0.00%	0.00%
Expected life	0.5	0.5	0.5
Employee Stock Options [Member]
Summary of employee stock options and employee stock purchase plan weighted average assumptions
Volatility	41.40%	42.20%	43.00%
Risk-free interest rate	0.90%	0.90%	1.60%
Dividend yield	0.00%	0.00%	0.00%
Expected life	5.5	4.2	4.2