Goodwill and Other Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Roll Forward]    
Balance $ 92,305 $ 43,898
Acquisitions   48,422
Goodwill related to sale of portion of business unit   (15)
Purchase Accounting Adjustments (165) [1]  
Balance 92,140 92,305
Banking
   
Goodwill [Roll Forward]    
Balance 64,534 23,600
Acquisitions   40,934
Goodwill related to sale of portion of business unit   0
Purchase Accounting Adjustments (165) [1]  
Balance 64,369 64,534
Insurance
   
Goodwill [Roll Forward]    
Balance 19,560 12,287
Acquisitions   7,273
Goodwill related to sale of portion of business unit   0
Purchase Accounting Adjustments 0 [1]  
Balance 19,560 19,560
Wealth Management
   
Goodwill [Roll Forward]    
Balance 8,211 8,011
Acquisitions   215
Goodwill related to sale of portion of business unit   (15)
Purchase Accounting Adjustments 0 [1]  
Balance $ 8,211 $ 8,211
[1] The $165,000 reduction of goodwill in 2013 reflects and adjustment related to the completion of the final tax return related to the VIST acquisition.