Debt and Credit Facility (Details 1) (USD $)	3 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014 2019 and 2021 Notes Payable [Member]	Jun. 29, 2013 2019 and 2021 Notes Payable [Member]	Jun. 28, 2014 Two And One Two Five Percent 2019 Senior Debentures [Member]	Mar. 29, 2014 Two And One Two Five Percent 2019 Senior Debentures [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 500,000,000	$ 500,000,000
Interest Expense, Debt, Excluding Amortization			6,406,000	0
Debt Instrument, Unamortized Discount					2,449,000	2,574,000
Amortization of Financing Costs			156,000	0
Amortization of Debt Discount (Premium)	3,003,000	4,025,000	240,000	0
Interest Expense, Debt			6,802,000	0
Proceeds from Issuance of Long-term Debt				990,100,000
Line of Credit Facility, Expiration Date	Dec. 31, 2016
Line of Credit Facility, Maximum Borrowing Capacity	250,000,000
Line of Credit Facility, Average Outstanding Amount	$ 0