Participation In The U.S. Treasury Capital Purchase Program (CPP) (Details) (USD $)	25 Months Ended				4 Months Ended	3 Months Ended	4 Months Ended	9 Months Ended
	Feb. 14, 2014	Sep. 30, 2012	Dec. 31, 2011	Dec. 23, 2008	May 02, 2012 U.S. Treasury Capital Purchase Program [Member]	Sep. 30, 2012 Series A Preferred Stock [Member]	Jun. 30, 2012 Series A Preferred Stock [Member]	Sep. 30, 2012 Series A Preferred Stock [Member]	Dec. 23, 2008 Series A Preferred Stock [Member]
Participation In The U.S. Treasury Capital Repurchase Program [Line Items]
Cumulative perpetual preferred stock issued, value			$ 98,146,000						$ 100,000,000
Liquidation preference per senior preferred shares				$ 1,000
Preferred stock, dividend rate, percentage	5.00%						9.00%
Charge to retained earnings representing preferred stock dividend and accretion of discount								3,400,000
Number of Securities Purchasable					227,376
Issued warrants as a percentage of senior preferred shares purchased					15.00%
Common share warrants exercise price					65.97
Term of warrants					10 years
Stock Repurchased During Period, Shares								100,000
Stock Repurchased During Period, Value								100,000,000
Payments for Repurchase of Preferred Stock and Preference Stock								101,000,000
Dividends, Preferred Stock, Cash						972,000
Charge to retained earnings from preferred stock repurchase								1,600,000
Number of Warrants Repurchased					227,376
Payments for Repurchase of Warrants					$ 2,800,000
Repurchase Price per Share					$ 12.50