Incentive Plans and Stock-Based Compensation (Tables)

12 Months Ended

Dec. 03, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

The following table summarizes information related to stock options and stock option exercises during the years ended November 30, 2011, 2010 and 2009.

	2011			2010			2009
Pre-tax compensation expense	$	4,397		$	3,632		$	3,027
Deferred tax benefits	(1,616		)	(1,335		)	(969		)
Excess tax benefits associated with tax deductions over the amount of compensation expense recognized in the consolidated financial statements	5,100			2,500			1,881
Fair value of options granted	5,803			4,213			3,551
Total intrinsic value of options exercised	16,732			7,547			4,975
Cash received upon exercise of options	7,233			5,703			2,479
Tax benefit realized from exercise of options	5,100			2,457			1,809
Addition to capital in excess of par value due to exercise of stock options	8,045			7,313			3,164

The following table summarizes information related to restricted stock unit awards during the years ended November 30, 2011, 2010 and 2009.

	2011			2010			2009
Pre-tax compensation expense	$	1,079		$	970		$	1,061
Deferred tax benefits	(396		)	(357		)	(339		)
Excess tax benefit (expense) associated with tax deductions under the amount of compensation expense recognized in the consolidated condensed financial statements	3			(111		)	(27		)
Fair value of restricted stock unit awards on date of grant	1,263			1,102			1,192
Fair value of restricted stock unit awards vested	905			983			790

The following table summarizes compensation expense related to directors’ restricted stock and the number of shares issued under the plans during the years ended November 30, 2011, 2010 and 2009.

	2011		2010		2009
Pre-tax compensation expense	$	200	$	240	$	210
Shares of Company common stock issued under the plans	4,540		6,760		8,298

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block]

The following table summarizes activity with respect to nonqualified stock options granted by the Company and includes options granted under the 2009, 2004 and 1994 Incentive Plans.

	2011				2010				2009
	Options Granted under Incentive Plans		Weighted Average Exercise Price		Options Granted under Incentive Plans		Weighted Average Exercise Price		Options Granted under Incentive Plans		Weighted Average Exercise Price
Outstanding at beginning of year	3,229,410		$	29.07	3,229,187		$	27.43	3,132,111		$	25.75
Granted	494,750		$	43.00	482,510		$	32.69	466,025		$	31.94
Exercised	(774,661	)	$	25.12	(443,810	)	$	20.76	(322,236	)	$	16.40
Surrendered	(41,966	)	$	36.06	(38,477	)	$	33.02	(46,713	)	$	35.45
Outstanding at end of year	2,907,533		$	32.39	3,229,410		$	29.07	3,229,187		$	27.43
Exercisable at end of year	1,971,197		$	30.00	2,347,852		$	27.48	2,372,757		$	25.02

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information about the Company’s outstanding and exercisable options at November 30, 2011.

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number	Weighted Average Exercise Price		Intrinsic Value		Weighted Average Remaining Life in Years	Number	Weighted Average Exercise Price		Intrinsic Value		Weighted Average Remaining Life in Years
$13.75 - $18.13	98,100	$	16.72	$	3,145	1.02	98,100	$	16.72	$	3,145	1.02
$20.57 - $28.96	880,272	$	25.96	20,084		3.34	880,272	$	25.96	20,084		3.34
$31.96 - $38.23	1,449,961	$	33.85	21,650		6.49	931,725	$	34.28	13,509		5.98
$40.73 - $44.07	479,200	$	43.00	2,770		9.08	61,100	$	44.05	289		9.33
	2,907,533	$	32.39	$	47,649	5.78	1,971,197	$	30.00	$	37,027	4.66

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions by grant year.

	2011			2010			2009
Weighted average fair value per option at the date of grant for options granted	$	11.73		$	8.73		$	7.62
Risk-free interest rate	2.52		%	2.84		%	1.91		%
Expected dividend yield	0.98		%	1.02		%	1.25		%
Expected volatility factor	25.54		%	26.00		%	24.16		%
Expected option term in years	6.4			6.2			6.1

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes the restricted stock unit awards.

	2011				2010				2009
	Units		Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value
Nonvested at beginning of year	70,894		$	33.23	67,476		$	34.01	57,724		$	33.66
Granted	29,467		$	42.86	34,128		$	32.30	36,368		$	32.78
Vested	(26,937	)	$	33.61	(28,898	)	$	34.01	(25,135	)	$	31.42
Surrendered	(1,879	)	$	37.18	(1,812	)	$	32.30	(1,481	)	34.19
Nonvested at end of year	71,545		$	36.95	70,894		$	33.23	67,476		$	34.01

Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block]

The Company issued stock under this plan as follows during the years ended November 30, 2011, 2010 and 2009.

	2011		2010		2009
Company stock issued under the plan	$	1,216	$	1,096	$	1,138