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Share-Based Compensation and Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015



	Shares (in thousands)		Weighted-Average Exercise Price
Outstanding at December 31, 2014	4,065		$	64.57
Granted	209		200.96
Exercised	(377	)	46.30
Forfeited	(28	)	86.31
Outstanding at March 31, 2015	3,869		$	73.58
Exercisable at March 31, 2015	2,566		$	48.16

Black-Scholes option pricing model



	For the Three Months Ended March 31,
	2015			2014
Risk free interest rate	1.57	%		1.74	%
Expected life	6.1		Years	5.9		Years
Expected volatility	22.4	%		25.5	%
Expected dividend yield	—	%		—	%

Summary of activity of share-based compensation



	For the Three Months Ended March 31,
	2015		2014
Compensation expense for stock options awarded	$	4,997	$	4,085
Income tax benefit from compensation expense related to stock options	1,847		1,512
Weighted-average grant-date fair value of options awarded	$	51.57	$	39.13

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

Summary of activity of share-based compensation



	For the Three Months Ended March 31,
	2015		2014
Compensation expense for shares issued under the ESPP	$	489	$	438
Income tax benefit from compensation expense related to shares issued under the ESPP	181		162
Compensation expense for restricted shares awarded	404		573
Income tax benefit from compensation expense related to restricted awards	$	149	$	212

- 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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