Credit Facility (Details) - Wells Fargo Bank, National Association [Member] - Line of Credit [Member] - USD ($)		3 Months Ended
	Jul. 27, 2015	Oct. 02, 2016
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 150,000,000
Maturity date		Jul. 27, 2017
Debt convenent, minimum required average bank account balances	30,000,000
Debt convenant, minimum required quarterly EBIDTA	75,000,000
Debt covenant, required balance of cash and cash equivalents and marketable securities	$ 500,000,000
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Variable interest rate	1.00%