Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Assumptions

The expected award life is based upon the average holding period over the history of the incentive plan. The following table summarizes the assumptions we used for the nine months ended September 30, 2013 and 2012:

	2013			2012
Risk-free rate of return		1.44	%		1.09	%
Expected dividend yields		1.55	%		1.67	%
Expected award life (years)		4.92			5.03
Expected volatility		31.1	%		32.6	%

2007 Plan [Member]

Summary of Stock Option Activity

A summary of option activity under the 2007 Plan as of September 30, 2013, and changes during the nine months then ended is as follows:

	Shares			Weighted-Average Exercise Price
Outstanding at January 1, 2013		418,325		$	33.56
Granted		0		$	0.00
Exercised		(151,286	)	$	31.62
Expired or forfeited		(45,051	)	$	34.21
Outstanding at September 30, 2013		221,988		$	34.74

Summary of Restricted Share Units Activity Under 2007 Plan

A summary of restricted share activity under the 2007 Plan as of September 30, 2013, and changes during the nine months then ended is as follows:

	Shares			Weighted-Average Grant Date Fair Value
Outstanding at January 1, 2013		236,139		$	29.76
Granted		117,788		$	37.05
Vested and issued		(54,034	)	$	29.80
Expired or forfeited		(41,077	)	$	35.62
Outstanding at September 30, 2013		258,816		$	32.71

Summary of Stock-Settled SARs Activity Under 2007 Plan

A summary of stock-settled SARs activity under the 2007 Plan as of September 30, 2013, and changes during the nine months then ended is as follows:

	Shares			Weighted-Average Exercise Price
Outstanding at January 1, 2013		1,261,448		$	27.04
Granted		332,004		$	37.21
Exercised		(167,693	)	$	26.69
Expired or forfeited		(124,711	)	$	29.27
Outstanding at September 30, 2013		1,301,048		$	29.46

Summary of Cash-Settled SARs Activity Under 2007 Plan

A summary of cash-settled SARs activity under the 2007 Plan as of September 30, 2013, and changes during the nine months then ended is as follows:

	Shares			Weighted-Average Exercise Price
Outstanding at January 1, 2013		1,886,124		$	29.75
Granted		556,598		$	39.67
Exercised		(451,792	)	$	29.46
Expired or forfeited		(175,284	)	$	29.85
Outstanding at September 30, 2013		1,815,646		$	32.85

Amended Plan [Member]

Summary of Stock Option Activity

A summary of option activity under the Amended Plan as of September 30, 2013, and changes during the nine months then ended is as follows:

	Shares			Weighted-Average Exercise Price
Outstanding at January 1, 2013		210,097		$	33.13
Granted		0		$	0.00
Exercised		(115,555	)	$	27.75
Expired or forfeited		(41,814	)	$	47.71
Outstanding at September 30, 2013		52,728		$	33.37