Derivative Financial Instruments Scheduel of Offsetting of Derivative Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Offsetting of Derivative Assets [Line Items]
Derivative Assets, Fair Value	$ 905	$ 1,144
Derivative Asset, Fair Value, Amount Offset Against Collateral	0	0
Derivative Asset, Fair Value, Net	905	1,144
Derivative Asset, Fair Value, Gross Liability	(287)	(1,144)
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative Asset	618	0
Barclays [Member]
Offsetting of Derivative Assets [Line Items]
Derivative Assets, Fair Value	905	1,107
Derivative Asset, Fair Value, Amount Offset Against Collateral	0	0
Derivative Asset, Fair Value, Net	905	1,107
Derivative Asset, Fair Value, Gross Liability	(287)	(1,107)
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative Asset	618	0
Wells Fargo Bank [Member]
Offsetting of Derivative Assets [Line Items]
Derivative Assets, Fair Value	0	37
Derivative Asset, Fair Value, Amount Offset Against Collateral	0	0
Derivative Asset, Fair Value, Net	0	37
Derivative Asset, Fair Value, Gross Liability	0	(37)
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative Asset	$ 0	$ 0