Fair Value - Level 3 Instruments (Details) (USD $) In Thousands, unless otherwise specified				3 Months Ended								3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013		Mar. 31, 2014 Interest Rate Swap Agreements Derivative Financial Instruments, Assets	Mar. 31, 2013 Interest Rate Swap Agreements Derivative Financial Instruments, Assets	Mar. 31, 2014 Interest Rate Swap Agreements Derivative Financial Instruments, Liabilities	Mar. 31, 2013 Interest Rate Swap Agreements Derivative Financial Instruments, Liabilities	Mar. 31, 2014 Interest Rate Lock Commitments Derivative Financial Instruments, Assets	Mar. 31, 2013 Interest Rate Lock Commitments Derivative Financial Instruments, Assets	Mar. 31, 2014 Forward Sales Commitments Derivative Financial Instruments, Assets	Dec. 31, 2013 Forward Sales Commitments Derivative Financial Instruments, Assets	Mar. 31, 2014 Mortgage Servicing Rights Derivative Financial Instruments, Assets	Mar. 31, 2013 Mortgage Servicing Rights Derivative Financial Instruments, Assets
Rollforward of Level 3 Assets [Rollforward]
Beginning balance				$ 132	$ 196			$ (23)	$ 873	$ 39	$ 147	$ 4,536	$ 2,525
Purchases, sales, issuances and settlements				0	0
Capitalized												135	418
Gains/losses included in other income				(13)	(16)			201	(66)			111	102
Transfer in and out								0	0
Ending balance				119	180			178	807	39	147	4,782	3,045
Rollforward of Level 3 Liabilities [Rollforward]
Beginning balance						132	196
Purchases, sales, issuances and settlements						0	0
Gains (losses) included in other income						(13)	(16)
Ending balance						119	180
Other real estate owned	$ 2,828	$ 3,267	[1]

[1] Derived from audited consolidated financial statements