Common Equity (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Non-vested options
Granted, Weighted-Average Exercise Price	$ 3.45	$ 3.34	$ 3.17
Outstanding, Shares, Ending Balance	8,089,710
Outstanding, Weighted-Average Exercise Price, Ending	$ 26.84
Non-Vested Options [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value		$ 3.31
Non-vested options
Outstanding, Shares, Beginning Balance	1,702,275
Granted, shares	1,418,560
Granted, Weighted-Average Exercise Price	$ 3.45
Vested, shares	(730,015)
Vested, Weighted-Average Exercise Price	$ 3.34
Forfeited, shares	(10,030)
Forfeited, Weighted-Average Exercise Price	$ 3.37
Outstanding, Shares, Ending Balance	2,380,790
Outstanding, Weighted-Average Exercise Price, Ending	$ 3.38