Stock-Based Compensation - Unrecognized Stock-Based Compensation Expense (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Dec. 30, 2012	Apr. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, Amount	$ 10,363	$ 11,656
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, Amount	6,990	8,119
Unrecognized stock-based compensation expense, Weighted Average Remaining Recognition Period (in years)	2 years 10 months 24 days	2 years 9 months 18 days
RSU Transactions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, Amount	$ 3,373	$ 3,537
Unrecognized stock-based compensation expense, Weighted Average Remaining Recognition Period (in years)	2 years 8 months 12 days	3 years 2 months 12 days