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Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes information about the Company’s stock option awards during 2014:



	Number of Shares		Weighted-Average Exercise Price
Outstanding, January 1, 2014	1,516,341		$	20.65
Granted	92,050		37.24
Exercised	(569,561	)	19.36
Forfeited	(25,606	)	27.10
Outstanding, December 31, 2014	1,013,224		22.72

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes information about stock options outstanding at December 31, 2014:



	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number of Shares	Average Remaining Life (Years)	Average Exercise Price		Number of Shares	Average Exercise Price
$11.45 to $20.69	356,110	4.70	$	16.44	348,385	$	16.35
$22.34 to $24.24	317,783	3.38	23.08		234,921	22.68
$24.40 to $32.76	253,781	4.29	26.23		203,251	26.16
$33.45 to $38.96	85,550	8.97	37.17		2,000	33.45

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of each stock option grant on the date of grant was estimated using the Black-Scholes option-pricing model based on the following weighted average assumptions:



	2014		2013		2012
Risk-free interest rate	1.68	%	0.96	%	0.98	%
Expected life (years)	5.3		5.3		5.3
Expected volatility	42.6	%	48.9	%	50.2	%
Expected dividend yield	2.24	%	2.38	%	2.56	%

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable

The following table summarizes information about stock options outstanding that are expected to vest and stock options outstanding that are exercisable at December 31, 2014:



Options Outstanding, Expected to Vest						Options Outstanding, Exercisable
Shares	Weighted- Average Exercise Price		Aggregate Intrinsic Value		Weighted- Average Remaining Term (Years)	Shares	Weighted- Average Exercise Price		Aggregate Intrinsic Value		Weighted- Average Remaining Term (Years)
995,945	$	22.72	$	14,248	4.54	788,557	$	20.81	$	12,778	3.88

Schedule of Share-based Compensation, Restricted Stock Units, Activity

The following table summarizes information about the Company’s Rights during 2014:



	Service Based Rights				Service and Performance Based Rights				Service and Market Based Rights
	Number of Units		Weighted-Average Grant Date Fair Value		Number of Units		Weighted-Average Grant Date Fair Value		Number of Units		Weighted-Average Grant Date Fair Value
Outstanding, January 1, 2014	558,576		$	20.60	224,544		$	24.42	112,272		$	35.87
Granted	132,794		36.93		65,437		37.34		32,718		58.16
Forfeited	(45,531	)	28.82		(17,429	)	35.13		(8,715	)	44.70
Additional Earned	—		—		37,173		23.13		19,483		34.87
Issued	(216,633	)	34.09		(82,661	)	23.13		(42,227	)	34.87
Outstanding, December 31, 2014	429,206		26.76		227,064		28.11		113,531		41.82