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Other Comprehensive Income
12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Other Comprehensive Income
OTHER COMPREHENSIVE INCOME

The gross amounts of each component of other comprehensive income and the related tax effects for the periods indicated are as follows:
Year ended December 31, 2016
Before Tax Amount
Tax Expense (Benefit)
Net of Tax Amount
Investment securities available-for sale:
 
 
 
Change in net unrealized gain during period
$
(19,379
)
$
(7,625
)
$
(11,754
)
Reclassification adjustment for net gains included in net income
(330
)
(130
)
(200
)
Change in unamortized loss on available-for-sale securities transferred into held-to-maturity
1,858

731

1,127

Change in net unrealized gain on derivatives
(203
)
(80
)
(123
)
Defined benefits post-retirement benefit plan:
 
 
 
Change in net actuarial loss
3,983

1,567

2,416

Total other comprehensive income
$
(14,071
)
$
(5,537
)
$
(8,534
)
Year ended December 31, 2015
Before Tax Amount
Tax Expense (Benefit)
Net of Tax Amount
Investment securities available-for sale:
 
 
 
Change in net unrealized gain during period
$
3,151

$
1,240

$
1,911

Reclassification adjustment for net gains included in net income
(137
)
(54
)
(83
)
Unamortized premium on available-to-sale securities transferred into held-for-maturity
1,611

634

977

Change in net unrealized gain on derivatives
165

65

100

Defined benefits post-retirement benefit plan:
 
 
 
Change in net actuarial loss
58

23

35

Total other comprehensive income
$
4,848

$
1,908

$
2,940

Year ended December 31, 2014
Before Tax Amount
Tax Expense (Benefit)
Net of Tax Amount
Investment securities available-for sale:
 
 
 
Change in net unrealized loss during period
$
27,522

$
10,830

$
16,692

Reclassification adjustment for net gains included in net income
(61
)
(24
)
(37
)
Change in unamortized gain on available-for-sale securities transferred into held-to-maturity
(6,923
)
(2,725
)
(4,198
)
Defined benefits post-retirement benefit plan:
 
 
 
Change in net actuarial loss
1,731

681

1,050

Total other comprehensive loss
$
22,269

$
8,762

$
13,507



The components of accumulated other comprehensive income (loss), net of income taxes, are as follows:
Year ended December 31,
2016
 
2015
Net unrealized gain (loss) on investment securities available-for-sale
$
(10,143
)
 
$
684

Net actuarial gain (loss) on defined benefit post-retirement benefit plans
2,038

 
(378
)
Net unrealized gain (loss) on derivatives
(23
)
 
100

Net accumulated other comprehensive income (loss)
$
(8,128
)
 
$
406