Income Taxes (Details Textual) (USD $)	12 Months Ended
	Apr. 01, 2012	Apr. 03, 2011	Mar. 28, 2010
Tax Credit Carryforwards (Textual) [Abstract]
Net tax benefit resulting from sale of the IB Business	$ 5,600,000
Tax Credit Carryforwards (Additional Textual) [Abstract]
Deferred income taxes	(254,000)	5,604,000	8,120,000
Tax charge due to amendment in license agreement			29,700,000
Valuation Allowance, Amount	1,500,000	1,500,000
Valuation allowance against deferred tax assets	(2,200,000)	2,200,000
Cumulative undistributed earnings of foreign subsidiaries of the company	376,500,000
Unrecognized tax benefit state income taxes	57,200,000
Net tax benefits from state income taxes	1,200,000
Unrecognized tax benefits interest expense, net of the related tax benefit, and penalties	4,400,000	3,400,000
Recognized interest expense (benefit), net of the related tax effect, and penalties aggregate	1,000,000	100,000	(100,000)
Federal Tax Carryforwards [Member]
Tax Credit Carryforwards (Textual) [Abstract]
Net Operating Loss Carryforwards	17,800,000
Operating Loss Carryforwards, Expiration Dates	2027 and 2029
State tax carryforwards [Member]
Tax Credit Carryforwards (Textual) [Abstract]
Net Operating Loss Carryforwards	97,800,000
Operating Loss Carryforwards, Expiration Dates	2017 and 2032
State capital loss carryovers	60,200,000
Other Tax Carryforward, Expiration Dates	2013 and 2017
State tax credit carryforwards	10,800,000
Internal Revenue Service (IRS) [Member]
Tax Credit Carryforwards (Textual) [Abstract]
Income Tax Examination, Year(s) under Examination	2008 and 2009
Segment, Discontinued Operations [Member]
Tax Credit Carryforwards (Textual) [Abstract]
Income tax provision (benefit) from discontinued operations	$ 9,400,000	$ 5,900,000	$ 14,600,000