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Accumulated Other Comprehensive Income
 3 Months Ended
Mar. 31, 2012
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss)

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

(Dollars in thousands)
 
Gross
 
Tax
 
Net
March 31, 2012:
 
 
 
 
 
 
Net unrealized gain on securities available for sale
 
$
7,036

 
$
2,624

 
$
4,412

Net unrealized loss on other-than-temporarily impaired securities available for sale
 
(2,265
)
 
(845
)
 
(1,420
)
Net unamortized pension costs
 
(3,738
)
 
(1,394
)
 
(2,344
)
Net unrealized loss on cash flow hedge
 
(1,728
)
 
(644
)
 
(1,084
)
 
 
$
(695
)
 
$
(259
)
 
$
(436
)
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
)
March 31, 2011:
 
 

 
 

 
 

Net unrealized gain on securities available for sale
 
$
4,497

 
$
1,678

 
$
2,819

Net unrealized loss on other-than-temporarily impaired securities available for sale
 
(2,606
)
 
(972
)
 
(1,634
)
Net unamortized pension costs
 
(2,687
)
 
(1,003
)
 
(1,684
)
Net unrealized gain on cash flow hedge
 
988

 
369

 
619

 
 
$
192

 
$
72

 
$
120