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CHANGE IN ACCUMULATED OTHER COMPREHENSIVE LOSS
 3 Months Ended
Mar. 31, 2018
Equity [Abstract]  
CHANGE IN ACCUMULATED OTHER COMPREHENSIVE LOSS
CHANGE IN ACCUMULATED OTHER COMPREHENSIVE LOSS
Accumulated other comprehensive loss includes unrealized gains and losses on available-for-sale investments, unrealized gains and losses on cash flow hedges, as well as unrecognized prior service costs, transition costs, and actuarial gains and losses on defined benefit pension plans. Changes to accumulated other comprehensive loss are presented net of tax as a component of stockholders' equity. Amounts that are reclassified out of accumulated other comprehensive loss are recorded on the Consolidated Statement of Income either as a gain or loss.
Changes to accumulated other comprehensive loss by component are shown net of taxes in the following tables for the period indicated:
 
(Dollars in thousands)
 
Net change in
investment
securities
available for sale
 
Net change
in securities
held to
maturity
 
Net
change in
defined
benefit
plan
 
Net change in
fair value of
derivative
used for cash
flow hedge
 
Total
Balance, December 31, 2017
 
$
(7,842
)
 
$
1,223

 
$
865

 
$
(2,398
)
 
$
(8,152
)
Other comprehensive (loss) income before reclassifications
 
(11,827
)
 
—

 
—

 
(765
)
 
(12,592
)
Less: Amounts reclassified from accumulated other comprehensive (loss) income
 
(16
)
 
(119
)
 
59

 
—

 
(76
)
Net current-period other comprehensive (loss) income
 
(11,843
)
 
(119
)
 
59

 
(765
)
 
(12,668
)
Balance, March 31, 2018
 
$
(19,685
)
 
$
1,104

 
$
924

 
$
(3,163
)
 
$
(20,820
)
Balance, December 31, 2016
 
$
(8,194
)
 
$
1,392

 
$
957

 
$
(1,772
)
 
$
(7,617
)
Other comprehensive income (loss) before reclassifications
 
1,272

 
—

 
—

 
(112
)
 
1,160

Less: Amounts reclassified from accumulated other comprehensive (loss) income
 
(206
)
 
(101
)
 
(23
)
 
—

 
(330
)
Net current-period other comprehensive income (loss)
 
1,066

 
(101
)
 
(23
)
 
(112
)
 
830

Balance, March 31, 2017
 
$
(7,128
)
 
$
1,291

 
$
934

 
$
(1,884
)
 
$
(6,787
)

The Consolidated Statements of Income were impacted by components of other comprehensive income (loss) as shown in the table below:
 
(Dollars in thousands)
 
Three Months Ended March 31,
 
Affected line item in Consolidated Statements of Income
 
 
2018
 
2017
 
Securities available for sale:
 
 
 
 
 
 
Realized gains on securities transactions
 
$
(21
)
 
$
(320
)
 
Security gains, net
Income taxes
 
5

 
114

 
Income tax provision
Net of tax
 
$
(16
)
 
$
(206
)
 
 
Net unrealized holding gains on securities transferred between available-for-sale and held-to-maturity:
 
 
 
 
 
 
Amortization of net unrealized gains to income during the period
 
$
(156
)
 
$
(160
)
 
Interest income on investment securities
Income taxes
 
37

 
59

 
Income tax provision
Net of tax
 
$
(119
)
 
$
(101
)
 
 
Amortization of Defined Benefit Pension items:
 
 
 
 
 
 
Prior service costs (credits) (1)
 
$
59

 
$
(19
)
 
 
Transition obligation
 
—

 
—

 
 
Actuarial gains
 
(11
)
 
(16
)
 
 
Total before tax
 
$
48

 
$
(35
)
 
Salaries, benefits and other compensation
Income taxes
 
11

 
12

 
Income tax provision
Net of tax
 
59

 
(23
)
 
 
Total reclassifications
 
$
(76
)
 
$
(330
)
 
 

(1) 
The March 31, 2018 prior service costs balance includes a tax true-up adjustment of $0.1 million. Note that the tax true-up was made to the deferred tax asset with an offset to AOCI and does not affect the actual net periodic benefit costs of the pension plan.