Supplemental Consolidated Cash Flow Information (Additional Information Related To Cash Flows) (Details) - USD ($) $ in Thousands		12 Months Ended
		Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Supplemental Cash Flow Information [Abstract]
Interest, net of amounts capitalized		$ 16,233	$ 13,754	$ 12,824
Income tax payments		28,764	29,145	43,365
Equipment capital lease obligations incurred		16,770	0	0
(Decrease) increase in accrued stock repurchases		(3,112)	(4,176)	7,288
Increase in dividends accrued or converted to common stock equivalents		174	68	0
Increase (decrease) in obligation for purchases of property and equipment (1)	[1]	$ 5,388	$ (1,187)	$ (1,274)

[1] (1) In 2013, amounts also include changes in obligations related to assets held for sale.