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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Restricted Stock Awards

Stock-Based Compensation arrangements

Schedule of Restricted Stock Activity

The following table is a summary of restricted stock award activity for the year ended December 31, 2012:

Restricted Stock Awards		Shares			Weighted- Average Grant Date Fair Value per Share			Weighted- Average Remaining Contractual Term (in years)			Aggregate Intrinsic Value (in thousands)(1)
Outstanding at December 31, 2011			238,194		$	18.35
Granted			6,550			36.84
Vested			(201,400	)		18.05
Forfeited			(7,590	)		17.60
Outstanding at December 31, 2012			35,754		$	23.64			0.8		$	1,778

⁽¹⁾

The aggregate intrinsic value of restricted stock awards is calculated by multiplying the closing market price of the Company's stock on December 31, 2012 by the number of non-vested restricted stock awards outstanding.

Restricted Stock Units

Stock-Based Compensation arrangements

Schedule of Restricted Stock Activity

  The following table is a summary of restricted stock unit activity for the year ended December 31, 2012:

Restricted Stock Units		Units			Weighted- Average Grant Date Fair Value per Unit			Weighted- Average Remaining Contractual Term (in years)(2)			Aggregate Intrinsic Value (in thousands)(1)
Outstanding at December 31, 2011			343,654		$	15.75
Granted and fully vested			38,304			36.55
Issued			(124,224	)		17.11
Forfeited			—			—
Outstanding at December 31, 2012			257,734		$	18.19			—		$	12,820

⁽¹⁾

The aggregate intrinsic value of restricted stock units is calculated by multiplying the closing market price of the Company's stock on December 31, 2012 by the number of outstanding restricted stock units.

⁽²⁾

Due to the immediate vesting of the units and the unknown term of each director, the weighted-average remaining contractual term in years has been omitted from the table above.

Stock options

Stock-Based Compensation arrangements

Schedule of Stock Option Activity

		Year Ended December 31,
		2012						2011						2010
Stock Options		Shares			Weighted- Average Exercise Price			Shares			Weighted- Average Exercise Price			Shares			Weighted- Average Exercise Price
Outstanding at beginning of year			—		$	—			30,000		$	11.90			100,000		$	11.90
Granted			—			—			—			—			—			—
Exercised			—			—			(30,000	)		11.90			(70,000	)		11.90
Forfeited or expired			—			—			—			—			—			—
Outstanding at December 31			—		$	—			—		$	—			30,000		$	11.90
Options exercisable at December 31			—		$	—			—		$	—			30,000		$	11.90

Stock Appreciation Rights

Stock-Based Compensation arrangements

Schedule of Value per Share and Assumptions Used

		Year Ended December 31,
		2012			2011			2010
Weighted-average value per stock appreciation rights Granted during the period		$	16.31		$	9.47		$	9.48
Assumptions
Stock price volatility			55.3%			52.7%			52.9%
Risk free rate of return			0.9%			2.3%			2.4%
Expected dividend yield			0.3%			0.3%			0.3%
Expected term (in years)			5.0			5.0			5.0

Schedule of Stock Appreciation Rights Activity

		Year Ended December 31,
		2012						2011						2010
Stock Appreciation Rights		Shares			Weighted- Average Exercise Price			Shares			Weighted- Average Exercise Price			Shares			Weighted- Average Exercise Price
Outstanding at Beginning of Year			1,288,130		$	16.04			1,471,300		$	15.27			1,346,200		$	14.64
Granted			120,442			35.18			191,500			20.37			159,100			20.27
Exercised			(547,350	)		14.84			(374,670	)		15.22			(34,000	)		13.58
Forfeited or expired			—			—			—			—			—			—
Outstanding at December 31(1)			861,222		$	19.49			1,288,130		$	16.04			1,471,300		$	15.27
Exercisable at December 31(2)			572,986		$	15.94			902,664		$	15.14			1,064,444		$	14.82

⁽¹⁾

The intrinsic value of a SAR is the amount which the current market value of the underlying stock exceeds the exercise price of the SAR. The aggregate intrinsic value of SARs outstanding at December 31, 2012 was $26.1 million. The weighted-average remaining contractual term is 3.9 years.

⁽²⁾

The aggregate intrinsic value of SARs exercisable at December 31, 2012 was $19.4 million. The weighted-average remaining contractual term is 3.1 years.

Performance Share Awards

Stock-Based Compensation arrangements

Schedule of Performance Share Awards Activity

Performance Share Awards		Shares			Weighted- Average Grant Date Fair Value per Share(1)			Weighted- Average Remaining Contractual Term (in years)			Aggregate Intrinsic Value (in thousands)(2)
Outstanding at December 31, 2011			2,441,566		$	15.31
Granted			518,602			33.62
Issued and fully vested			(1,358,564	)		11.95
Forfeited			(42,850	)		24.22
Outstanding at December 31, 2012			1,558,754		$	24.08			1.1		$	77,532

⁽¹⁾

The fair value figures in this table represent the fair value of the equity component of the performance share awards.

⁽²⁾

The aggregate intrinsic value of performance share awards is calculated by multiplying the closing market price of the Company's stock on December 31, 2012 by the number of non-vested performance share awards outstanding.

Performance Share Awards | Equity Component

Stock-Based Compensation arrangements

Schedule of Value per Share and Assumptions Used

		Year Ended December 31,
		2012			2011			2010
Fair value per performance share award granted during the period		$	28.31		$	15.62		$	6.50
Assumptions
Stock price volatility			46.7%			62.0%			61.8%
Risk free rate of return			0.4%			1.3%			1.4%
Expected dividend yield			0.2%			0.2%			0.3%

Performance Share Awards | Liability Component.

Stock-Based Compensation arrangements

Schedule of Value per Share and Assumptions Used

		December 31,
		2012		2011		2010
Fair value per performance share award at the end of the period		$38.22 - $49.52		$25.64 - $35.47		$0.00 - $3.08
Assumptions
Stock price volatility		41.1% - 45.7%		41.9% - 42.7%		70.7% - 71.7%
Risk free rate of return		0.2% - 0.3%		0.1% - 0.3%		0.3% - 0.4%
Expected dividend yield		0.2%		0.2%		0.4%

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