Share-Based Payments (Tables)

3 Months Ended

Mar. 31, 2012

Employee Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

The weighted-average fair value of options granted and assumptions used to calculate their fair value during the three months ended March 31, 2012 and 2011 were as follows:

	Three months ended
	March 31, 2012			March 31, 2011
Expected dividend yield	0.9		%	1.0		%
Expected stock price volatility	46.6		%	44.9		%
Weighted average risk-free interest rate	0.8		%	2.4		%
Expected life of options (years)	4.2			4.6
Weighted average grant date fair value	$	13		$	11

The following tables summarize the Company’s employee stock option activity and related information for the three months ended March 31, 2012 and 2011:

	Three months ended March 31, 2012
							Weighted-
			Weighted-		Aggregate		Average
			Average		Intrinsic		Remaining
	Options		Exercise		Value		Contractual
	(000)		Price		(000)		Term
Outstanding at December 31, 2011	3,363		$	26
Granted	93		37
Exercised	(308	)	27
Outstanding at March 31, 2012	3,148		$	27	$	25,704	3.2
Exercisable at March 31, 2012	2,755		$	26	$	22,678	2.9

	Three months ended
	March 31, 2012		March 31, 2011
Shared-based compensation for options	$	822	$	1,115
Tax benefit for option compensation	$	217	$	307
Unrecognized compensation cost for options, net of estimated forfeitures	$	3,265	$	5,678

Employee Non-vested Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following tables summarize the Company’s employee non-vested share activity and related information for the three months ended March 31, 2012 and 2011:

	Three months ended March 31, 2012
			Weighted-		Aggregate
	Non-vested		Average		Grant Date
	Shares		Grant Date		Fair Value
	(000)		Fair Value		(000)
Outstanding and non-vested at December 31, 2011	108		$	29
Granted	103		37
Vested	(36	)	29
Outstanding and non-vested at March 31, 2012	175		$	33	$	5,813

	Three months ended
	March 31, 2012		March 31, 2011
Shared-based compensation for non-vested shares	$	445	$	137
Tax benefit for non-vested share compensation	$	174	$	55
Unrecognized compensation cost for non-vested shares, net of estimated forfeitures	$	5,319	$	2,939

Key Employee Performance Share Based Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest [Table Text Block]

The fair value of the performance shares was estimated using a Monte Carlo simulation. The weighted average assumptions used in the Monte Carlo calculation were as follows:

	Three months ended
	March 31, 2012		March 31, 2011
Expected stock price volatility	40.8	%	47.7	%
Weighted average risk-free interest rate	0.4	%	1.4	%

The following tables summarize the Company’s employee performance share activity, assuming median share awards, and related information for the three months ended March 31, 2012 and 2011:

	Three months ended March 31, 2012
		Weighted-		Aggregate
	Performance	Average		Grant Date
	Shares	Grant Date		Fair Value
	(000)	Fair Value		(000)
Outstanding and non-vested at December 31, 2011	38	$	30
Granted	24	45
Vested	—	—
Outstanding and non-vested at March 31, 2012	62	$	36	$	2,205

	Three months ended
	March 31, 2012		March 31, 2011
Shared-based compensation for performance shares	$	147	$	53
Tax benefit for performance share compensation	$	57	$	21
Unrecognized compensation cost for performance shares, net of estimated forfeitures	$	1,724	$	1,164

Nonemployee Director Nonvested Shares Granted Member

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following tables summarize the Company’s non-employee non-vested share activity and related information for the three months ended March 31, 2012 and 2011:

	Three months ended March 31, 2012
			Weighted-		Aggregate
	Non-vested		Average		Grant Date
	Shares		Grant Date		Fair Value
	(000)		Fair Value		(000)
Outstanding and non-vested at December 31, 2011	24		$	33
Granted	—		—
Vested	(2	)	31
Outstanding and non-vested at March 31, 2012	22		$	33	$	720

	Three months ended
	March 31, 2012		March 31, 2011
Shared-based compensation for non-vested shares	$	192	$	138
Tax benefit for non-vested share compensation	$	75	$	55
Unrecognized compensation cost for non-vested shares, net of estimated forfeitures	$	78	$	120