Common Stock and Stock Plans - Summary of Stock Options and Employee Stock Purchase Plan Weighted Average Assumptions (Detail)	12 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	41.20%	41.40%	42.20%
Risk-free interest rate	0.70%	0.90%	0.90%
Dividend yield	0.00%	0.00%	0.00%
Expected life	5 years 6 months	5 years 6 months	4 years 2 months 12 days
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	30.00%	38.40%	28.30%
Risk-free interest rate	0.10%	0.10%	0.20%
Dividend yield	0.00%	0.00%	0.00%
Expected life	6 months	6 months	6 months