Debt and Credit Facility (Details 1) - USD ($)	3 Months Ended		12 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Mar. 29, 2014	Apr. 01, 2017
Debt Instrument [Line Items]
Amortization of Debt Discount (Premium)	$ 1,676,000	$ 3,016,000
Proceeds from Issuance of Long-term Debt	$ 745,871,000	0
Debt Instrument, Description of Variable Rate Basis	three-month London Interbank Offered Rate (LIBOR) plus 91.43 bps
Line of Credit Facility, Expiration Date	Dec. 14, 2021
Line of Credit Facility, Maximum Borrowing Capacity	$ 400,000,000
AdditionalborrowingcapacityfromRevolvingCreditFacility	150,000,000
Line of Credit Facility, Average Outstanding Amount		0
Long-term Debt, Excluding Current Maturities	$ 1,737,410,000			$ 995,247,000
Two And One Two Five Percent 2019 Senior Debentures [Member]
Debt Instrument [Line Items]
Discount Percent of Par	99.477%
Debt Instrument, Face Amount	$ 500,000,000			500,000,000
Debt Instrument, Unamortized Discount	(904,000)			(1,037,000)
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net	$ (569,000)			(654,000)
Debt instrument, long term debt, remaining discount amortization period	1 year 8 months 15 days
2019 and 2021 Notes Payable [Member]
Debt Instrument [Line Items]
Interest Expense, Debt, Excluding Amortization	$ 6,406,000	6,406,000
Amortization of Debt Issuance Costs	146,000	146,000
Amortization of Debt Discount (Premium)	260,000	253,000
Interest Expense, Debt	6,812,000	6,805,000
Proceeds from Issuance of Long-term Debt			$ 990,100,000
Long-term Debt, Excluding Current Maturities	$ 995,653,000			995,247,000
Two Point and Nine Five Percent 2024 Senior Debentures [Member]
Debt Instrument [Line Items]
Discount Percent of Par	99.887%
Debt Instrument, Face Amount	$ 750,000,000			0
Debt Instrument, Interest Rate, Stated Percentage	2.95%
Debt Instrument, Unamortized Discount	$ (838,000)			0
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net	(3,911,000)			0
Long Term Debt, Carrying Value before Hedging Adjustment	745,251,000			0
Derivative, Amount of Hedged Item	(3,494,000)			0
Interest Expense, Debt, Excluding Amortization	1,322,000	0
Amortization of Debt Issuance Costs	47,000	0
Amortization of Debt Discount (Premium)	10,000	0
Interest Expense, Debt	1,379,000	$ 0
Proceeds from Issuance of Long-term Debt	$ 745,200,000
Debt instrument, long term debt, remaining discount amortization period	6 years 11 months
Long-term Debt, Excluding Current Maturities	$ 741,757,000			0
Three Point Zero Percent 2021 Senior Debentures [Member]
Debt Instrument [Line Items]
Discount Percent of Par	99.281%
Debt Instrument, Face Amount	$ 500,000,000			500,000,000
Debt Instrument, Unamortized Discount	(1,979,000)			(2,107,000)
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net	$ (895,000)			$ (955,000)
Debt instrument, long term debt, remaining discount amortization period	3 years 8 months 15 days
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest Rate Derivative Liabilities, at Fair Value	$ 3,500,000