Purchased Intangible Assets - Amortization Expense by Classification Included in Consolidated Statements of Income (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Apr. 03, 2011
Finite-Lived Intangible Assets [Line Items]
Amortization expense by classification	$ 1,223	$ 4,183	$ 4,868
Total continuing operations [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense by classification	1,223	1,023	1,023
Discontinued operations [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense by classification		$ 3,160	$ 3,845