Summary of Significant Accounting Policies and Concentrations of Risk (Other) (Details) (USD $)	12 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012
Summary of Significant Accounting Policies and Concentrations of Risk [Abstract]
Percent of Worldwide Net revenues Accounted From End Customer	10.00%	10.00%	10.00%
Held-to-maturity Securities	$ 0	$ 0
Impairment of goodwill	0
Percentage of net revenues from products sold to distributors	56.00%
Deferred revenue	75,200,000	71,300,000
Net deferred cost of revenues	20,100,000	17,900,000
Deferred income on shipments to distributors	$ 55,099,000	$ 53,358,000