Earnings (Loss) Per Common Share (Details Textual) (USD $)	3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2012
Class of Warrant or Right [Line Items]
Weighted Average Common Shares Outstanding and Dilutive Potential Common Shares Impact of Mandatory Convertible Preferred Shares Was Not Antidilutive			489,900,000
Incremental Common Shares Attributable to Conversion of Preferred Stock	21,200,000
Earnings Loss Per Share (Textual) [Abstract]
Dividends declared		$ 0.10	$ 0.10
Series F Preferred Stock [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Conversion rate of common stock to preferred stock		36.8365
Series F Preferred Stock [Member] | Maximum [Member] | Scenario, Previously Reported [Member]
Class of Warrant or Right [Line Items]
Conversion rate of common stock to preferred stock		36.460
Series F Preferred Stock [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Conversion rate of common stock to preferred stock		30.1920
Series F Preferred Stock [Member] | Minimum [Member] | Scenario, Previously Reported [Member]
Class of Warrant or Right [Line Items]
Conversion rate of common stock to preferred stock		29.883
Capital Purchase Program [Member]
Class of Warrant or Right [Line Items]
Exercise price of warrant		9.579