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Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Stock Option [Member]



	Shares (in thousands)	Weighted-Average Exercise Price
Outstanding at December 31, 2012	6,789	$	50.86
Granted	267		98.25
Exercised	(862)		37.98
Forfeited	(313)		75.04
Outstanding at June 30, 2013	5,881		53.62
Exercisable at June 30, 2013	3,323	$	35.41

Black-Scholes option pricing model



	For the Six Months Ended
	June 30,
	2013		2012
Risk free interest rate	0.85	%	0.67	%
Expected life	5.2	Years	4.1	Years
Expected volatility	32.3	%	33.7	%
Expected dividend yield	-	%	-	%

Summary of activity of share-based compensation

.

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Compensation expense for stock options awarded	$	4,580	$	4,835	$	9,237	$	9,216
Income tax benefit from compensation expense related to stock options		1,747		1,862		3,524		3,548

Employee Stock Purchase Plan [Member] | Restricted Stock [Member]

Summary of activity of share-based compensation

.

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Compensation expense for shares issued under the ESPP	$	418	$	376	$	831	$	738
Income tax benefit from compensation expense related to shares issued under the ESPP		160		145		317		284
Compensation expense for restricted shares awarded		579		456		1,106		937
Income tax benefit from compensation expense related to restricted awards		221		176		422		361

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References+ Details