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Earnings Per Share and Certain Related Information (Details)	3 Months Ended
	Dec. 30, 2011	Dec. 31, 2010
Earnings Per Share Reconciliation [Abstract]
Weighted average shares outstanding (denominator used to compute basic EPS)	126,921,000	124,988,000
Effect of stock options and restricted stock	1,166,000	1,652,000
Denominator used to compute diluted EPS	128,087,000	126,640,000
Antidilutive stock options and restricted stock	4,642,000	3,821,000
Shares of common stock issued from the exercise of stock options and the release of restricted stock	560,900	348,900

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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