Per Share Data (Details)	1 Months Ended			3 Months Ended		9 Months Ended
	Jun. 30, 2012	May 31, 2012	Nov. 30, 2011	Aug. 03, 2012	Jul. 29, 2011	Aug. 03, 2012	Jul. 29, 2011
Basic
Weighted-average number of shares of common stock				59,045,000	62,353,000	59,633,000	62,976,000
Assumed issuance of contingent shares						9,000	6,000
Weighted-average number of shares of common stock and assumed issuance of contingent shares				59,045,000	62,353,000	59,642,000	62,982,000
Diluted
Weighted-average number of shares of common stock and assumed issuance of contingent shares				59,045,000	62,353,000	59,642,000	62,982,000
Effect of dilutive securities (in shares)				1,291,000	1,126,000	1,187,000	1,143,000
Weighted-average number of shares of common stock, assumed issuance of contingent shares, and effect of dilutive securities				60,336,000	63,479,000	60,829,000	64,125,000
Stock split, conversion ratio	2	2	2
Options to purchase, shares of common stock outstanding, excluded from the calculation of diluted net earnings per share				2,247	442,612	32,414	383,682