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Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Stock Option [Member]



	Shares (in thousands)		Weighted-Average Exercise Price
Outstanding at December 31, 2013	5,227		$	54.11
Granted	209		138.99
Exercised	(481	)	38.68
Forfeited	(75	)	81.69
Outstanding at March 31, 2014	4,880		$	58.85
Exercisable at March 31, 2014	3,042		$	39.98

Black-Scholes option pricing model



	For the Three Months Ended March 31,
	2014			2013
Risk free interest rate	1.74	%		0.89	%
Expected life	5.9		Years	5.4		Years
Expected volatility	25.5	%		32.5	%
Expected dividend yield	—	%		—	%

Summary of activity of share-based compensation



	For the Three Months Ended March 31,
	2014		2013
Compensation expense for stock options awarded	$	4,085	$	4,657
Income tax benefit from compensation expense related to stock options	1,512		1,777
Weighted-average grant-date fair value of options awarded	39.13		30.01

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

Summary of activity of share-based compensation



	For the Three Months Ended March 31,
	2014		2013
Compensation expense for shares issued under the ESPP	$	438	$	413
Income tax benefit from compensation expense related to shares issued under the ESPP	162		158
Compensation expense for restricted shares awarded	573		527
Income tax benefit from compensation expense related to restricted awards	212		201

- 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.

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