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Other Comprehensive Income
 12 Months Ended
Dec. 31, 2011
Equity [Abstract]  
Other Comprehensive Income
OTHER COMPREHENSIVE INCOME

Total comprehensive income is reported in the accompanying statements of changes in stockholders’ equity. Information related to net other comprehensive income is as follows:
Year ended December 31,
2011
 
2010
 
2009
Other comprehensive income (loss):
 
 
 
 
 
Investment securities available-for-sale:
 
 
 
 
 
Change in net unrealized (loss) gain during the period
$
17,168

 
$
(8,438
)
 
$
10,322

Reclassification adjustment for gains included in income
(1,544
)
 
(170
)
 
(137
)
Unamortized premium on available-for-sale securities transferred into held-to-maturity
389

 
722

 
1,055

Change in the net actuarial loss on defined benefit post-retirement benefit plans
135

 
(940
)
 
(1,179
)
 
16,148

 
(8,826
)
 
10,061

Deferred tax expense
6,489

 
(3,126
)
 
3,958

Net other comprehensive income (loss)
$
9,659

 
$
(5,700
)
 
$
6,103


The components of accumulated other comprehensive income, net of income taxes, are as follows:
Year ended December 31,
2011
 
2010
Net unrealized gain on investment securities available-for-sale
$
20,533

 
$
10,959

Net actuarial loss on defined benefit post-retirement benefit plans
(1,499
)
 
(1,584
)
Net accumulated other comprehensive income
$
19,034

 
$
9,375