Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of restricted stock units issued and compensation expense

The following table summarizes restricted stock units issued and the compensation expense recorded for 2012, 2011 and 2010:

Stock-Based Compensation Expense

	Restricted Stock Units	Fair Value per Unit	Expense
(Dollars in thousands, except per unit)			2012		2011		2010
Directors:
May 1, 2009	16,000	27.28	$	—	$	—	$	145
May 3, 2010	16,000	30.99	—		165		331
May 2, 2011	20,192	34.79	234		468		—
May 2, 2012	27,930	21.58	402		—		—
December 4, 2012	2,688	19.95	—		—		—
Employees:
January 23, 2007	101,700	38.25	—		—		41
January 22, 2008	130,950	45.95	—		68		1,601
January 27, 2009	106,625	25.15	43		614		667
November 19, 2009	15,000	31.90	—		12		298
January 25, 2010	1,000	31.49	1		10		20
September 22, 2010	25,000	23.47	20		373		194
April 26, 2011	3,750	32.10	44		29		—
September 20, 2011	13,500	21.18	151		111		—
January 23, 2012	30,000	17.81	168		—		—
March 16, 2012	44,268	21.39	130		—		—
May 4, 2012	56,233	17.34	213		—		—
September 10, 2012	5,985	19.05	11		—		—
November 16, 2012	5,000	16.45	3		—		—
Total			$	1,420	$	1,850	$	3,297

Schedule of restricted stock unit activity

Restricted stock unit activity for 2012, 2011 and 2010 was as follows:

	Restricted Stock Units		Weighted Average Grant-Date Fair Value
Nonvested at January 1, 2010	229,491		$	34.45
Granted	42,000		26.53
Vested	(124,424	)	35.81
Forfeited	(6,532	)	35.23
Nonvested at December 31, 2010	140,535		30.83
Granted	37,442		29.61
Vested	(113,136	)	33.55
Forfeited	(2,200	)	25.15
Nonvested at December 31, 2011	62,641		25.39
Granted	172,104		19.23
Vested	(67,861	)	24.86
Forfeited	(25,411	)	20.35
Nonvested at December 31, 2012	141,473		$	19.19

Schedule of stock option activity

Stock option activity for 2012, 2011 and 2010 was as follows:

	Shares Under Option		Weighted Average Exercise Price		Aggregate Intrinsic Value (in millions)(a)
Outstanding, January 1, 2010	389,970		$	15.66	$	6.7
Exercised	(115,493	)	13.77		—
Expired	(805	)	16.33		—
Outstanding, December 31, 2010	273,672		16.46		3.3
Granted	617,500		31.75		—
Exercised	(199,032	)	15.95		—
Forfeited/Expired	(30,300	)	30.92		—
Outstanding, December 31, 2011	661,840		30.22		0.2
Exercised	(38,900	)	18.23		—
Forfeited/Expired	(294,940	)	31.29		—
Outstanding, December 31, 2012	328,000		$	30.67	$	0.2

(a) Intrinsic value is defined as the difference between the current market value and the exercise price, for those options where the market price exceeds the exercise price.

Schedule of outstanding and exercisable options

The following table summarizes information concerning outstanding and exercisable options at December 31, 2012:

	Options Outstanding					Options Exercisable
Range of Exercisable Prices	Vested	Unvested	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life in Years	Number Exercisable	Weighted Average Exercise Price Per Share
$16.96 - $16.96	24,000	—	$	16.96	0.33	24,000	$	16.96
$31.75 - $31.75	—	304,000	31.75		5.07	—	—
	24,000	304,000	$	30.67	4.72	24,000	$	16.96

Schedule of weighted-average grant-date fair value of unvested options

Weighted-average grant-date fair value of unvested options during the year ended December 31, 2012 was as follows:

	Shares Under Option		Weighted Average Grant-Date Fair Value
Outstanding, January 1, 2012	589,000		$	10.90
Forfeited	(285,000	)	10.90
Outstanding, December 31, 2012	304,000		$	10.90

Schedule of stock appreciation rights valuation assumptions

The fair value of each SAR grant was estimated on the date of grant using a Black-Scholes pricing model with the following assumptions:

	March 2012 Grant			May 2012 Grant			September 2012 Grant
Risk-free interest rate	1.56		%	1.18		%	1.00		%
Dividend yield	3.50		%	4.20		%	3.80		%
Expected life (years)	6.5			6.5			6.5
Volatility	43.9		%	44.0		%	44.3		%
SAR grant price	$	23.73		$	19.65		$	21.37
Fair value of SAR award	$	6.10		$	4.77		$	6.20

Schedule of Stock Appreciation Rights award activity

A summary of activity relating to SARs for the year ended December 31, 2012 was as follows:

	SARs
	Number of Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value (in millions)		Weighted Average Remaining Contractual Term (Years)
Outstanding, January 1, 2012	—		$	—	$	—
Granted	707,012		21.23
Forfeited/expired	(181,725	)	21.23
Outstanding, December 31, 2012	525,287		$	21.23	$	1.2	9.3