Acquisitions (Narrative) (Details) (USD $)							9 Months Ended		9 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Jan. 02, 2013 Commercial Insurance Agency Office in Pikeville, Kentucky [Member]	Apr. 05, 2013 Insurance Agency Office in Jackson, Ohio [Member]	May 15, 2013 Two Insurance Agency Offices in Jackson, Ohio [Member]	Oct. 11, 2013 Ohio Commerce Bank [Member]	Sep. 30, 2013 Gross Core Deposit [Member]	Dec. 31, 2012 Gross Core Deposit [Member]	Sep. 30, 2013 Gross Customer Relationship [Member]	Dec. 31, 2012 Gross Customer Relationship [Member]	Sep. 30, 2013 Goodwill [Member]	Dec. 31, 2012 Goodwill [Member]	Sep. 30, 2013 Customer Relationships [Member]	Sep. 30, 2013 Other Intangible Assets [Member]	Sep. 30, 2013 Servicing Contracts [Member]	Sep. 30, 2013 Core Deposits [Member]
Business Acquisition [Line Items]
Goodwill	$ 65,786,000	$ 64,881,000									$ 65,786,000	$ 64,881,000
Business Acquisition, Cost of Acquired Entity, Purchase Price, Total			1,500,000	700,000	1,100,000	16,500,000
Finite-Lived Intangible Assets, Gross							8,853,000	8,853,000	9,648,000	7,190,000			9,648,000	18,501,000		8,853,000
Goodwill, Acquired During Period											905,000
Finite-lived Intangible Assets Acquired							0		2,458,000
Finite-Lived Intangible Assets, Accumulated Amortization													(6,662,000)	(15,005,000)		(8,343,000)
Other intangible assets	$ 5,631,000	$ 3,644,000											$ 2,986,000	$ 3,496,000	$ 2,135,000	$ 510,000