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Accumulated Other Comprehensive Income
 9 Months Ended
Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss)
 
Changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2017 and the year ended December 31, 2016 are as follows (in thousands):
 
Unrealized Gains and Losses on Available-for-Sale Securities
 
Changes in Pension Plan Assets and Benefit Obligations
 
Total
Nine Months Ended September 30, 2017:
 
 
 
 
 
Balance at beginning of period
$
(2,633
)
 
$
16

 
$
(2,617
)
Before reclassifications
1,974

 
—

 
1,974

Reclassifications
(143
)
 
—

 
(143
)
Balance at end of period
$
(802
)
 
$
16

 
$
(786
)
 
 
 
 
 
 
Year Ended December 31, 2016:
 

 
 

 
 

Balance at beginning of period
$
469

 
$
(233
)
 
$
236

Before reclassifications
(2,390
)
 
249

 
(2,141
)
Reclassifications
(712
)
 
—

 
(712
)
Balance at end of period
$
(2,633
)
 
$
16

 
$
(2,617
)


Reclassifications out of accumulated other comprehensive income (loss) during the three and nine months ended September 30, 2017 and 2016 and the affected line items in the consolidated condensed statements of income are as follows (in thousands):
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
Affected Line Item in the Consolidated Condensed Statements of Income
 
2017
 
2016
 
2017
 
2016
 
Realized gain on sale of securities
$
78

 
$
307

 
$
218

 
$
957

 
Net gain on sales of securities
Less provision for income taxes
27

 
104

 
75

 
325

 
Provision for income taxes
Reclassification adjustment, net of taxes
$
51

 
203

 
$
143

 
$
632