Share Based and Deferred Compensation Share Based and Deferred Compensation (Option Activity) (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	5 years 4 months 29 days	7 years 2 months 13 days
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, Aggregate Intrinsic Value	$ 0
Granted, shares	0
Granted, Weighted Average Grant Date Fair Value	$ 0.00
Exercised in Period, Shares	(207,941)
Exercises in Period, Weighted Average Grant Date Fair Value	$ 10.52
Forfeited, shares	(117,662)
Forfeited, Weighted Average Grant Date Fair Value	$ 18.61
Outstanding at the end of year, shares	3,011,946.000	3,337,549
Outstanding at end of year, Weighted Average Exercise Price	$ 15.40	$ 14.50
Outstanding at end of year, Aggregate Intrinsic Value	0	0
Vested/Exerciseable, shares	2,827,517
Vested/Exerciseable at end of period, Weigted Average Exercise Price	$ 15.63
Vested/Exerciseable at end of period, Weighted Average Remaining Contractual Term (in years)	5 years 3 months 20 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]
Vested/Exerciseable, shares	2,827,517