OREO (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Loans and Leases Receivable, Troubled Debt Restructuring [Line Items]
Real Estate Acquired Through Foreclosure, Acquired Through Acquisition	$ 0	$ 3,608	$ 0	$ 3,608
Mortgage Loans in Process of Foreclosure, Amount	0		0
Real Estate Acquired Through Foreclosure [Roll Forward]
Beginning balance	11,773	16,425	13,554	15,504
Additions	984	398	5,380	4,797
Valuation adjustments	(73)	(77)	(179)	(87)
Dispositions	(4,653)	(1,858)	(10,724)	(5,326)
Ending balance	8,031	$ 18,496	8,031	$ 18,496
Residential real estate
Real Estate Acquired Through Foreclosure [Roll Forward]
Ending balance	$ 1,810		$ 1,810