Shareholder's Equity (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2008	Jul. 21, 2011	Jan. 19, 2011	Dec. 31, 2010
Shareholders Equity [Line Items]
Troubled Asset Relief Program (TARP) Equity capital received, Shares	1,967,071	1,967,071	1,967,071	1,967,071				1,967,071
Common stock, par value	$ 0.01	$ 0.01	$ 0.01	$ 0.01				$ 0.01
Shareholder's Equity (Textuals) [Abstract]
Term to exercise warrants (years)					10Y
Purchase of common stock shares					23,600,000
Purchase of common stock shares, exercise price					$ 8.90
Purchase price of warrants originally issued to the Treasury							$ 49,100,000
Cash dividends declared, prior period	$ 0.04	$ 0.01	$ 0.06	$ 0.03
Cash Dividends declared, current period						$ 0.04
Series B Preferred Stock [Member]
Shareholders Equity [Line Items]
Troubled Asset Relief Program (TARP) Equity capital received, Amount					$ 1,400,000,000
Troubled Asset Relief Program (TARP) Equity capital received, Shares					1,400,000
Common Stock [Member]
Shareholders Equity [Line Items]
Common stock, par value					$ 0.01