Share Based and Deferred Compensation Share Based and Deferred Compensation (Option Activity) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award Option Activity [Abstract]
Outstanding at the beginning of year, shares	3,337,549
Outstanding at beginning of year, Weighted Average Exercise Price	$ 14.50
Outstanding at beginning of year, Weigted Average Remaining Contractual Term (in years)	7 years 2 months 13 days
Outstanding at beginning of year, Aggregate Intrinsic Value	$ 0
Granted, shares	0
Granted, Weighted Average Grant Date Fair Value	$ 0.00
Exercised in Period, Shares	(76,340)
Exercises in Period, Weighted Average Grant Date Fair Value	$ 10.11
Forfeited, shares	(94,211)
Forfeited, Weighted Average Grant Date Fair Value	$ 19.00
Outstanding at the end of year, shares	3,166,998.000
Outstanding at end of year, Weighted Average Exercise Price	$ 14.84
Outstanding at end of year, Weigted Average Remaining Contractual Term (in years)	5 years 8 months 20 days
Outstanding at end of year, Aggregate Intrinsic Value	0
Vested/Exerciseable, shares	2,982,568
Vested/Exerciseable at end of period, Weigted Average Exercise Price	$ 15.16
Vested/Exerciseable at end of period, Weighted Average Remaining Contractual Term (in years)	5 years 7 months 21 days
Vested/Exercisable at end of year, Aggregate Intrinsic Value	$ 0
Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award Option Activity [Abstract]
Outstanding at the end of year, shares	3,166,998