Earnings per Share (Details) (USD $)	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Shares used in basic EPS calculation	66,434,000	65,840,000	64,938,000
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Restricted stock units	1,006,000	866,000	733,000
Stock options and other stock-based awards	2,000	29,000	45,000
Shares used in diluted EPS calculation	67,442,000	66,735,000	65,716,000
Repurchases of common stock, value	$ 46,189,000	$ 49,787,000
Stock Compensation Plan [Member]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Repurchases of common stock, shares	488,455
Repurchases of common stock, value	51,000,000
Treasury Stock Repurchase, price per share	$ 104.36
Stock Repurchase Program 2011 [Member]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Repurchases of common stock, shares	0	0	0
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	1,000,000
Stock Repurchase Program 2012 [Member]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Repurchases of common stock, shares	467,500	563,221
Repurchases of common stock, value	46,200,000	49,800,000
Treasury Stock Repurchase, price per share	$ 98.80	$ 88.40
Stock Repurchase Program, Authorized Amount		$ 100,000,000