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Accumulated Other Comprehensive Income (Loss) (Tables)
 12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in the balances of each component of accumulated other comprehensive income (loss), net of tax, as of December 31, 2017 and 2016:

Accumulated Other Comprehensive Income (Loss)

Unrealized Gains (Losses) on Securities Available for Sale

Unrealized Gains (Losses) on Cash Flow Hedges

Unrealized Gains (Losses) on Defined Benefit Plans

Total
Balance at December 31, 2016
$
1,035


$
(1,774
)

$
(12,842
)

$
(13,581
)
Other comprehensive income before reclassifications
9,645


9


2,686


12,340

Amounts reclassified from accumulated other comprehensive income
(1,710
)

640


(597
)

(1,667
)
Period change
7,935


649


2,089


10,673

Balance at December 31, 2017
$
8,970


$
(1,125
)

$
(10,753
)

$
(2,908
)
















Balance at December 31, 2015
$
12,325


$
(2,347
)

$
(11,340
)

$
(1,362
)
Other comprehensive income before reclassifications
(9,087
)

(240
)

(470
)

(9,797
)
Amounts reclassified from accumulated other comprehensive income
(2,203
)

813


(1,032
)

(2,422
)
Period change
(11,290
)

573


(1,502
)

(12,219
)
Balance at December 31, 2016
$
1,035


$
(1,774
)

$
(12,842
)

$
(13,581
)
Reclassification out of Accumulated Other Comprehensive Income (Loss)
The following table presents the reclassification adjustments out of accumulated other comprehensive income (loss) that were included in net income in the Consolidated Condensed Statements of Income for the years ended December 31, 2017, 2016 and 2015:

Amount Reclassified from Accumulated Other Comprehensive Income (Loss) For the Year Ended December 31,


Details about Accumulated Other Comprehensive Income (Loss) Components
2017

2016

2015

Affected Line Item in the Statements of Income
Unrealized gains (losses) on available for sale securities (1)







Realized securities gains reclassified into income
$
2,631


$
3,389


$
2,670


Other income - net realized gains on sales of available for sale securities
Related income tax expense
(921
)

(1,186
)

(934
)

Income tax expense

$
1,710


$
2,203


$
1,736











Unrealized gains (losses) on cash flow hedges (2)







Interest rate contracts
$
(985
)

$
(1,250
)

$
(1,427
)

Interest expense - subordinated debentures and term loans
Related income tax benefit
345


437


499


Income tax expense

$
(640
)

$
(813
)

$
(928
)










Unrealized gains (losses) on defined benefit plans







Amortization of net loss and prior service costs
$
806


$
1,588


$
305


Other expenses - salaries and employee benefits
Related income tax benefit (expense)
(209
)

(556
)

(107
)

Income tax expense

$
597


$
1,032


$
198











Total reclassifications for the period, net of tax
$
1,667


$
2,422


1,006





(1) For additional detail related to unrealized gains (losses) on available for sale securities and related amounts reclassified from accumulated other comprehensive income see NOTE 4. INVESTMENT SECURITIES.

(2) For additional detail related to unrealized gains (losses) on cash flow hedges and related amounts reclassified from accumulated other comprehensive income see NOTE 13. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES.