Quarterly report pursuant to Section 13 or 15(d)

Securities (Details)

v2.4.0.6
Securities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost $ 604,107 $ 599,262
Gross Unrealized Gains 24,339 22,387
Gross Unrealized (Losses) (903) (1,483)
Estimated Fair Value 627,543 620,166
U.S. government and agency securities [Member]
   
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost 3,264 3,933
Gross Unrealized Gains 312 351
Gross Unrealized (Losses)      
Estimated Fair Value 3,576 4,284
Obligations of states and political subdivisions [Member]
   
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost 194,203 189,117
Gross Unrealized Gains 13,781 11,337
Gross Unrealized (Losses) (202) (247)
Estimated Fair Value 207,782 200,207
Corporate and other bonds [Member]
   
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost 9,503 12,839
Gross Unrealized Gains 308 188
Gross Unrealized (Losses) (420) (787)
Estimated Fair Value 9,391 12,240
Mortgage-backed securities [Member]
   
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost 393,954 390,329
Gross Unrealized Gains 9,838 10,434
Gross Unrealized (Losses) (281) (445)
Estimated Fair Value 403,511 400,318
Other securities [Member]
   
Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities    
Amortized Cost 3,183 3,044
Gross Unrealized Gains 100 77
Gross Unrealized (Losses)    (4)
Estimated Fair Value $ 3,283 $ 3,117