Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

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

Summary of fair values for stock-based awards granted using the Black-Scholes option pricing model

The fair values for option awards granted in 2011, 2010 and 2009 were estimated at the date of grant using the Black-Scholes option pricing model with the following weighted-average assumptions:

	For the Year Ended December 31,
	2011	2010	2009
Weighted-average fair value of grants	$5.63	$5.30	$2.21
Risk-free interest rate (range)	1.4% - 3.0%	1.4% - 2.6%	1.1% - 2.7%
Dividend yield (range)	3.4% - 4.9%	4.2% - 5.6%	8.6% - 24.9%
Expected life (range)	7 years	4 - 5 years	3 - 6 years
Expected volatility (range)	52.1% - 69.0%	87.0% - 97.8%	58.0% - 93.8%

Summary of stock option activity

The following table reflects the stock option activity described above (aggregate intrinsic value in thousands):

							Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
	Number of Options
	Employees			Directors
	(thousands)
Balance December 31, 2008		2,185			32		$	41.97
Granted		1,415			—			6.00
Exercised		(149	)		—			5.83
Forfeited		(121	)		(10	)		25.10
Balance December 31, 2009		3,330			22		$	29.02
Granted		373			—			10.37
Exercised		(212	)		—			6.02
Forfeited		(268	)		(2	)		30.21
Balance December 31, 2010		3,223			20		$	28.28
Granted		276			—			13.72
Exercised		(192	)		—			6.39
Forfeited		(624	)		(10	)		41.02
Balance December 31, 2011		2,683			10		$	25.35		5.8	$	5,552
Options exercisable at December 31,
2011		2,230			10		$	28.00		5.2	$	5,177
2010		2,900			20		$	30.27		5.8	$	8,035
2009		3,329			22		$	29.02		6.8	$	3,947

Summary of characteristics of options outstanding

The following table summarizes the characteristics of the options outstanding at December 31, 2011 (in thousands):

Options Outstanding
Range of Exercise Prices	Outstanding as of 12/31/11		Weighted- Average Remaining Contractual Life (years)		Weighted- Average Exercise Price
							Options Exercisable
							Exercisable as of 12/31/11		Weighted- Average Exercise Price
$ 0.00-$6.50		813		6.8	$	6.01		813	$	6.01
$ 6.51-$12.50		298		8.2		10.33		95		10.34
$12.51-$29.50		385		6.2		16.95		135		22.71
$29.51-$49.50		827		4.2		38.22		827		38.22
$49.51-$69.50		370		4.8		59.88		370		59.88
		2,693		5.8	$	25.35		2,240	$	28.00

Activities for unvested stock option awards

The following table reflects the activity for unvested stock option awards for the years ended (in thousands):

	Options			Weighted- Average Grant Date Fair Value
Unvested at December 31, 2010		323		$	5.22
Granted		276			5.42
Vested		(104	)		5.23
Forfeited		(42	)		5.23
Unvested at December 31, 2011		453		$	5.34

Activities for unvested restricted stock awards

The following table reflects the activity for unvested restricted stock awards for the year ended December 31, 2011 (awards in thousands):

	Awards			Weighted- average Grant Date Fair Value
Unvested at December 31, 2010		1,146		$	6.97
Granted		238			13.73
Vested		(508	)		6.91
Forfeited		(148	)		6.41
Unvested at December 31, 2011		728		$	9.31

Activities for unvested VSEP awards

The following table reflects the activity for unvested VSEP awards for the year ended (in thousands):

	Awards			Weighted- Average Grant Date Fair Value
Unvested at December 31, 2010		714		$	11.35
Granted		1,442			14.16
Vested		(764	)		13.09
Forfeited		(210	)		12.94
Unvested at December 31, 2011		1,182		$	13.34

VSEP awards [Member]

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

Summary of fair values for stock-based awards granted using the Black-Scholes option pricing model

The fair value of the VSEP grants was estimated on the date of grant using a Monte Carlo approach model based on the following assumptions:

	Range
Risk-free interest rate	1.9%
Dividend yield	6.2%
Expected life	3.4 years
Expected volatility	88%