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Accumulated Other Comprehensive Income (Loss)
 9 Months Ended
Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)

The following is a summary of the gross amounts of accumulated other comprehensive income (loss) and the related income tax effects:

(Dollars in thousands)
 
Gross
 
Tax
 
Net
September 30, 2012:
 
 
 
 
 
 
Net unrealized gain on securities available for sale
 
$
10,484

 
$
3,910

 
$
6,574

Net unrealized loss on other-than-temporarily impaired securities available for sale
 
(2,253
)
 
(840
)
 
(1,413
)
Net unamortized pension costs
 
(2,670
)
 
(996
)
 
(1,674
)
Net unrealized loss on cash flow hedge
 
(2,653
)
 
(990
)
 
(1,663
)
 
 
$
2,908

 
$
1,084

 
$
1,824

December 31, 2011:
 
 

 
 

 
 

Net unrealized gain on securities available for sale
 
$
7,202

 
$
2,688

 
$
4,514

Net unrealized loss on other-than-temporarily impaired securities available for sale
 
(2,318
)
 
(865
)
 
(1,453
)
Net unamortized pension costs
 
(4,272
)
 
(1,593
)
 
(2,679
)
Net unrealized loss on cash flow hedge
 
(1,834
)
 
(684
)
 
(1,150
)
 
 
$
(1,222
)
 
$
(454
)
 
$
(768
)
September 30, 2011:
 
 

 
 

 
 

Net unrealized gain on securities available for sale
 
$
8,350

 
$
3,115

 
$
5,235

Net unrealized loss on other-than-temporarily impaired securities available for sale
 
(2,457
)
 
(916
)
 
(1,541
)
Net unamortized pension costs
 
(2,208
)
 
(824
)
 
(1,384
)
Net unrealized gain on cash flow hedge
 
(1,729
)
 
(645
)
 
(1,084
)
 
 
$
1,956

 
$
730

 
$
1,226