Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2012

Stock-Based Compensation Plans [Abstract]

Stock-based compensation expense

	Year Ended December 31,
	2012		2011		2010
	(In thousands)
Employee:
Restricted stock and performance shares	$	7,046	$	5,856	$	6,588
Stock options		668		324		1,728
		7,714		6,180		8,316
Non-employee directors:
Restricted stock		671		679		570
Stock options		—		—		83
		671		679		653
Total stock-based compensation	$	8,385	$	6,859	$	8,969

Assumptions used for the Black-Scholes option-pricing model to determine the per share weighted average fair value for options granted

	2012			2011			2010
Expected life (years)		5.0			9.9			5.0
Risk-free interest rate		0.7	%		3.3	%		2.2	%
Expected volatility		48.2	%		48.0	%		50.0	%
Expected dividend yield		1.2	%		1.3	%		2.0	%

Stock option activity

						Remaining
	Number of			Weighted-Average		Contractual
	Shares			Exercise Price		Term		Intrinsic Value
								(In thousands)
Outstanding at December 31, 2009		5,166,558		$	9.10
Granted		8,239		$	14.10
Canceled		(12,575	)	$	13.85
Exercised		(758,660	)	$	9.17
Outstanding at December 31, 2010		4,403,562		$	9.09
Granted		340,771		$	21.60
Canceled		(211,323	)	$	16.16
Exercised		(1,605,273	)	$	10.21
Outstanding at December 31, 2011		2,927,737		$	9.42		8.1
Granted		13,292		$	32.45
Canceled		—		$	—
Exercised		(1,511,207	)	$	5.64			$	41,310
Outstanding at December 31, 2012		1,429,822		$	13.62		4.5	$	31,002
Exercisable at December 31, 2012		1,214,099		$	12.10		4.0	$	28,172

Summary of performance of share activity

	2012		2011		2010
Performance year
Share pay-out at plan, net of forfeitures of 14,563 for 2011		44,843		63,102		87,035
Actual share pay-out in following year		41,481		94,653		130,552
Fair value per share on grant date	$	30.64	$	21.56	$	14.29

Restricted stock and performance share activity

				Weighted-Average
	Number of			Grant Date Fair
	Restricted Shares			Value
Outstanding at December 31, 2009		1,034,139		$	9.64
Granted		549,264
Performance share pay-out		206,664
Canceled		(71,152	)
Vested		(474,051	)
Outstanding at December 31, 2010		1,244,864		$	11.23
Granted		435,548
Performance share pay-out		130,552
Canceled		(279,081	)
Vested		(574,172	)
Outstanding at December 31, 2011		957,711		$	15.69
Granted		206,965
Performance share pay-out		91,498
Canceled		(7,390	)
Vested		(459,474	)
Outstanding at December 31, 2012		789,310		$	21.88