Average Shares Outstanding (Reconciliation Of Basic Weighted-Average Shares Outstanding To Diluted Weighted-Average Shares Outstanding) (Details) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Average Shares Outstanding [Line Items]
Weighted-average shares outstanding - basic	40,781	43,351	43,999
Weighted-average shares outstanding - diluted	41,973	44,899	44,948
Excluded from diluted weighted-average shares outstanding, Antidilutive	153	145	2,753
Excluded from diluted weighted-average shares outstanding, Performance conditions not satisfied at the end of the period	20	209	358
Employee Stock Option [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	641	957	462
Nonvested Stock Awards And Units [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	281	371	270
Performance-Vested Stock Units [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	270	220	217