Earnings Per Share (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share (Textual) [Abstract]
Expense on the change in the fair value of the warrants	$ 4.8	$ 9.5	$ 37.0	$ 17.1