Financing (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 03, 2015	Jul. 02, 2016
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity		$ 200,000,000
Line of credit facility, outstanding borrowings	$ 21,183,000	0
Letters of credit outstanding, amount	12,008,000	24,877,000
Line of credit facility, remaining borrowing capacity	$ 166,809,000	$ 175,123,000
Variable Rate Credit Facility [Member] | Bank Line Of Credit, Monthly U.S. LIBOR Plus 100 Basis Points [Member]
Line of Credit Facility [Abstract]
Line of credit facility, interest rate	1.20%
Variable Rate Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Abstract]
LIBOR plus, basis points	1.00%