Incentive Plans and Stock-Based Compensation (Tables)

12 Months Ended

Nov. 30, 2013

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

Allocation of share-based compensation costs

The following table summarizes information related to restricted stock unit awards during the years ended November 30, 2013, 2012 and 2011.

	2013			2012			2011
Pre-tax compensation expense	$	888		$	1,229		$	1,079
Deferred tax benefits	(319		)	(451		)	(396		)
Excess tax (expense) benefit associated with tax deductions (under) over the amount of compensation expense recognized in the consolidated financial statements	1,280			(88		)	3
Fair value of restricted stock unit awards on date of grant	1,068			1,489			1,263
Fair value of restricted stock unit awards vested	621			2,359			905

The following table summarizes information related to directors' stock compensation during the years ended November 30, 2013, 2012 and 2011.

	2013		2012		2011
Pre-tax compensation expense	$	960	$	200	$	200
Shares of Company common stock issued under the plans	18,256		4,055		4,540

The following table summarizes information related to stock options and stock option exercises during the years ended November 30, 2013, 2012 and 2011.

	2013			2012			2011
Pre-tax compensation expense	$	3,212		$	4,997		$	4,397
Deferred tax benefits	(1,153		)	(1,836		)	(1,616		)
Excess tax benefits associated with tax deductions over the amount of compensation expense recognized in the consolidated financial statements	7,231			2,007			5,100
Fair value of options granted	3,868			6,407			5,803
Total intrinsic value of options exercised	29,384			8,793			16,732
Cash received upon exercise of options	33,778			5,170			7,233
Addition to capital in excess of par value due to exercise of stock options	38,903			5,440			8,045

Schedule of nonqualified stock option activity

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.

	2013				2012				2011
	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	3,037,151		$	36.09	2,907,533		$	32.39	3,229,410		$	29.07
Granted	387,500		$	45.25	512,850		$	49.84	494,750		$	43.00
Exercised	(1,191,752	)	$	30.30	(353,793	)	$	25.28	(774,661	)	$	25.12
Surrendered	(24,585	)	$	42.48	(29,439	)	$	40.17	(41,966	)	$	36.06
Outstanding at end of year	2,208,314		$	40.76	3,037,151		$	36.09	2,907,533		$	32.39
Exercisable at end of year	1,413,100		$	38.19	2,035,267		$	32.54	1,971,197		$	30.00

Schedule of outstanding and exercisable options

The following table summarizes information about the Company’s outstanding and exercisable options at November 30, 2013.

	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
$22.80 - $28.79	157,850	$	26.84	$	5,318	2.48	157,850	$	26.84	$	5,318	2.48
$31.96 - $38.06	726,403	$	33.83	19,395		4.51	672,844	$	33.95	17,885		4.39
$40.73 - $55.01	1,324,061	$	46.22	18,954		8.19	582,406	$	46.16	8,368		7.70
	2,208,314	$	40.76	$	43,667	6.57	1,413,100	$	38.19	$	31,571	5.54

Schedule of Black-Scholes option pricing model on options granted

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.

	2013			2012			2011
Weighted average fair value per option at the date of grant for options granted	$	9.98		$	12.49		$	11.73
Risk-free interest rate	1.19		%	1.38		%	2.52		%
Expected dividend yield	1.19		%	0.96		%	0.98		%
Expected volatility factor	25.80		%	26.52		%	25.54		%
Expected option term in years	5.40			6.10			6.40

Schedule of restricted stock unit awards

The following table summarizes the restricted stock unit awards.

	2013				2012				2011
	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	39,945		$	43.16	71,545		$	36.95	70,894		$	33.23
Granted	23,624		$	45.19	29,839		$	49.91	29,467		$	42.86
Vested	(15,525	)	$	40.01	(60,320	)	$	39.11	(26,937	)	$	33.61
Surrendered	—		$	—	(1,119	)	$	44.15	(1,879	)	$	37.18
Nonvested at end of year	48,044		$	45.18	39,945		$	43.16	71,545		$	36.95

Schedule of shares issues under employee stock purchase plans

The Company issued stock under this plan with fair value upon issuance as follows during the years ended November 30, 2013, 2012 and 2011.

	2013		2012		2011
Company stock issued under the plan	$	1,269	$	1,244	$	1,216