Debt and Credit Facility (Details 1) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 02, 2016	Dec. 27, 2014	Jan. 02, 2016	Dec. 27, 2014	Mar. 29, 2014	Mar. 28, 2015
Debt Instrument [Line Items]
Amortization of Debt Discount (Premium)			$ 9,033,000	$ 9,014,000
Line of Credit Facility, Expiration Date			Dec. 31, 2016
Line of Credit Facility, Maximum Borrowing Capacity	$ 250,000,000		$ 250,000,000
Line of Credit Facility, Average Outstanding Amount			0
2019 and 2021 Notes Payable [Member]
Debt Instrument [Line Items]
Interest Expense, Debt, Excluding Amortization	6,406,000	$ 6,406,000	19,219,000	19,219,000
Amortization of Financing Costs	146,000	146,000	439,000	436,000
Amortization of Debt Discount (Premium)	251,000	244,000	745,000	725,000
Interest Expense, Debt	6,803,000	$ 6,796,000	20,403,000	$ 20,380,000
Proceeds from Issuance of Long-term Debt					$ 990,100,000
2.125% 2019 Senior Debentures [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 500,000,000	$ 500,000,000
Debt Instrument, Unamortized Discount	$ 1,689,000		$ 1,689,000			$ 2,073,000