Stock-Based Compensation (Summary Of The Activity In The Stock Option Plan) (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Outstanding, Shares, Beginning Balance	6,018
Weighted Average Exercise Price, Beginning of Period	$ 20.37
Granted, Shares	0
Granted, Weighted Average Exercise Price	$ 0.00
Acquired, shares	319
Acquired, Weighted Average Exercise Price	$ 15.15
Exercised, Shares	(28)
Exercised, Weighted Average Exercise Price	$ 4.94
Forfeited/expired, Shares	(1,645)
Forfeited/expired, Weighted Average Exercise Price	$ 21.55
Outstanding, Shares, Ending Balance	4,664
Weighted Average Exercise Price, End of Period	$ 19.69
Weighted Average Remaining Contractual Term in Years, End of Period	1.7
Aggregate Intrinsic Value, End of Period	$ 163,100
Options exercisable at end of year, Shares	4,604
Options exercisable at end of year, Weighted Average Exercise Price	$ 19.77
Options exercisable at end of year, Weighted Average Remaining Contractual Terms in Years	1.7
Options exercisable at end of year, Aggregate Intrinsic Value	$ 163,100