Incentive Plans and Stock-Based Compensation (Details 4) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 03, 2011 years
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number	2,907,533
Options Outstanding - Weighted Average Exercise Price	$ 32.39
Options Outstanding - Intrinsic Value	$ 47,649
Options Outstanding - Weighted Average Remaining Life in Years	5.78
Options Exercisable - Number	1,971,197
Options Exercisable - Weighted Average Exercise Price	$ 30.00
Options Exercisable - Intrinsic Value	37,027
Options Exercisable - Weighted Average Remaining Life in Years	4.66
$13.75 - $18.13 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number	98,100
Options Outstanding - Weighted Average Exercise Price	$ 16.72
Options Outstanding - Intrinsic Value	3,145
Options Outstanding - Weighted Average Remaining Life in Years	1.02
Options Exercisable - Number	98,100
Options Exercisable - Weighted Average Exercise Price	$ 16.72
Options Exercisable - Intrinsic Value	3,145
Options Exercisable - Weighted Average Remaining Life in Years	1.02
$20.57 - $28.96 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number	880,272
Options Outstanding - Weighted Average Exercise Price	$ 25.96
Options Outstanding - Intrinsic Value	20,084
Options Outstanding - Weighted Average Remaining Life in Years	3.34
Options Exercisable - Number	880,272
Options Exercisable - Weighted Average Exercise Price	$ 25.96
Options Exercisable - Intrinsic Value	20,084
Options Exercisable - Weighted Average Remaining Life in Years	3.34
$31.96 - $38.23 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number	1,449,961
Options Outstanding - Weighted Average Exercise Price	$ 33.85
Options Outstanding - Intrinsic Value	21,650
Options Outstanding - Weighted Average Remaining Life in Years	6.49
Options Exercisable - Number	931,725
Options Exercisable - Weighted Average Exercise Price	$ 34.28
Options Exercisable - Intrinsic Value	13,509
Options Exercisable - Weighted Average Remaining Life in Years	5.98
$40.73 - $44.07 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number	479,200
Options Outstanding - Weighted Average Exercise Price	$ 43.00
Options Outstanding - Intrinsic Value	2,770
Options Outstanding - Weighted Average Remaining Life in Years	9.08
Options Exercisable - Number	61,100
Options Exercisable - Weighted Average Exercise Price	$ 44.05
Options Exercisable - Intrinsic Value	$ 289
Options Exercisable - Weighted Average Remaining Life in Years	9.33