Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Share-Based Compensation

Schedule of valuation assumptions for stock options

	For the Six Months Ended June 30,
	2014		2013
Expected life (in years)	5.5		5.8
Risk-free interest rate	1.63	%	1.11	%
Expected volatility	30.28	%	32.64	%
Expected dividend yield	2.82	%	1.57	%

Schedule of stock option activity

(dollars and options in thousands, except per share amounts)	Number of  Options		Weighted Average Exercise Price per Share		Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2013	2,849		$	40.77
Granted	715		59.65
Exercised	(385	)	33.75
Cancelled	(40	)	49.85
Outstanding at June 30, 2014	3,139		45.81		6.48	$	91,736
Exercisable at June 30, 2014	2,076		38.21		5.11	$	76,462

Schedule of additional information pertaining to stock option activity

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands, except per share)	2014		2013		2014		2013
Weighted average grant date fair value of stock options granted (per share)	$	15.93	$	—	$	12.99	$	17.87
Total intrinsic value of stock options exercised	$	12,148	$	3,467	$	14,923	$	14,652

Schedule of restricted share and restricted unit activity

	RSAs				RSUs
(in thousands, except per share amounts)	Number of RSAs		Weighted Average Fair Value per Share		Number of RSUs		Weighted Average Fair Value per Share
Non-vested at December 31, 2013	48		$	26.25	469		$	54.47
Granted	—		—		157		61.02
Vested	(31	)	25.35		(154	)	48.82
Cancelled	(1	)	28.75		(16	)	55.87
Non-vested at June 30, 2014	16		27.94		456		58.59

Schedule of components of share based compensation expense

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(in millions)	2014			2013			2014			2013
Stock options:
Pre-tax compensation expense	$	1.7		$	1.6		$	3.7		$	3.2
Income tax (benefit)	(0.5		)	(0.5		)	(1.0		)	(1.0		)
Stock option expense, net of income taxes	1.2			1.1			2.7			2.2
RSUs, RSAs and other share-based awards:
Pre-tax compensation expense	3.0			2.7			5.7			5.7
Income tax (benefit)	(0.9		)	(0.8		)	(1.7		)	(1.7		)
RSU, RSA and other share-based compensation expense, net of income taxes	2.1			1.9			4.0			4.0
Total share-based compensation:
Pre-tax compensation expense	4.7			4.3			9.4			8.9
Income tax (benefit)	(1.4		)	(1.3		)	(2.7		)	(2.7		)
Total share-based compensation expense, net of income taxes	$	3.3		$	3.0		$	6.7		$	6.2