Consolidated Statements Of Condition (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013 Series A Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]	Sep. 30, 2012 Series A Preferred Stock [Member]	Sep. 30, 2013 Series C Preferred Stock [Member]	Dec. 31, 2012 Series C Preferred Stock [Member]	Sep. 30, 2012 Series C Preferred Stock [Member]
Preferred stock, no par value
Preferred stock, 20,000,000 shares authorized	20,000,000	20,000,000	20,000,000
Preferred stock, $1,000 liquidation value				$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares issued				0	50,000	50,000	126,500	126,500	126,500
Preferred stock, shares outstanding				0	50,000	50,000	126,500	126,500	126,500
Common stock, no par value
Common stock, $1.00 stated value	$ 1.00	$ 1.00	$ 1.00
Common stock, 100,000,000 shares authorized	100,000,000	100,000,000	100,000,000
Common stock, shares issued	39,992,300	37,107,684	36,647,154
Treasury stock, shares	261,257	249,329	239,373