Earnings Per Share (Schedule Of Reconciliation Of Amounts Utilized In Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Earnings Per Share [Line Items]
Net income	$ 16,616	$ 17,870
Basic weighted average common shares outstanding	34,836,000	34,600,000
Dilutive effect of share-based awards outstanding	447,000	581,000
Diluted weighted average shares outstanding	35,283,000	35,181,000
Earnings per share, Basic	$ 0.48	$ 0.52
Earnings per share, Diluted	$ 0.47	$ 0.51
Stock Options [Member]
Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings per share	2,100,000	1,800,000