Goodwill and Other Intangible Assets (Other Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 14,374	$ 16,746
Acquired Finite-lived Intangible Asset, Amount	1,669	0
Finite-Lived Intangible Assets, Accumulated Amortization	(14,472)	(16,335)
Finite-Lived Intangible Assets, Net	1,571	411
Other intangible assets	3,644	1,955
Core Deposits [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Core Deposits, Gross	8,192	10,564
Acquired Finite-lived Intangible Asset, Amount	661	0
Finite-Lived Intangible Assets, Accumulated Amortization	(8,232)	(10,460)
Finite-Lived Intangible Assets, Net	621	104
Other intangible assets
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Customer Relationships, Gross	6,182	6,182
Acquired Finite-lived Intangible Asset, Amount	1,008	0
Finite-Lived Intangible Assets, Accumulated Amortization	(6,240)	(5,875)
Finite-Lived Intangible Assets, Net	950	307
Other intangible assets
Servicing Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets	$ 2,073	$ 1,544