Derivatives Derivatives not designated as hedging instruments narrative (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Notional Amount	$ 8,470,000	$ 8,918,000
Not Designated as Hedging Instrument [Member] | Open best efforts interest rate lock commitments [Member]
Derivative [Line Items]
Notional Amount	103,500,000	93,800,000
Not Designated as Hedging Instrument [Member] | Open forward sales commitments to investors [Member]
Derivative [Line Items]
Notional Amount	114,400,000	167,200,000
Not Designated as Hedging Instrument [Member] | Swap [Member]
Derivative [Line Items]
Notional Amount	$ 4,200,000	$ 4,500,000