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Accumulated Other Comprehensive (Loss) Income
 9 Months Ended
Sep. 30, 2017
Equity [Abstract]  
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive (Loss) Income
The following table shows the components of accumulated other comprehensive (loss) income, net of taxes, for the periods presented:
(Dollars in thousands)
Net Unrealized
(Losses) Gains on
Available-for-Sale
Investment
Securities
 
Net Change
Related to
Derivatives Used for Cash Flow Hedges
 
Net Change
Related to
Defined Benefit
Pension Plans
 
Accumulated
Other
Comprehensive
(Loss) Income
Balance, December 31, 2016
$
(4,988
)
 
$
(141
)
 
$
(14,325
)
 
$
(19,454
)
Net Change
2,624

 
28

 
459

 
3,111

Balance, September 30, 2017
$
(2,364
)
 
$
(113
)
 
$
(13,866
)
 
$
(16,343
)
Balance, December 31, 2015
$
(592
)
 
$
(285
)
 
$
(15,831
)
 
$
(16,708
)
Net Change
2,381

 
(382
)
 
505

 
2,504

Balance, September 30, 2016
$
1,789

 
$
(667
)
 
$
(15,326
)
 
$
(14,204
)