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Tax Effects on Other Comprehensive Income (Loss) (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Tax Effects of Components of Other Comprehensive Income (Loss)
The following tables present the tax effects of the components of other comprehensive income (loss) for the years ended December 31:
(dollars in thousands)
Pre-Tax
Amount

 
Tax (Expense)
Benefit

 
Net of Tax
Amount

2016
 
 
 
 
 
Net change in unrealized gains on securities available-for-sale
$
(2,899
)
 
$
1,006

 
$
(1,893
)
Net available-for-sale securities losses (gains) reclassified into earnings
—

 
—

 
—

Adjustment to funded status of employee benefit plans
6,974

 
(2,408
)
 
4,566

Other Comprehensive Income (Loss)
$
4,075

 
$
(1,402
)
 
$
2,673

2015
 
 
 
 
 
Net change in unrealized gains on securities available-for-sale
$
(663
)
 
$
232

 
$
(431
)
Net available-for-sale securities losses reclassified into earnings
34

 
(12
)
 
22

Adjustment to funded status of employee benefit plans
(3,551
)
 
1,336

 
(2,215
)
Other Comprehensive Income (Loss)
$
(4,180
)
 
$
1,556

 
$
(2,624
)
2014
 
 
 
 
 
Net change in unrealized gains on securities available-for-sale
$
11,825

 
$
(4,139
)
 
$
7,686

Net available-for-sale securities gains reclassified into earnings
(41
)
 
15

 
(26
)
Adjustment to funded status of employee benefit plans
(13,394
)
 
4,595

 
(8,799
)
Other Comprehensive Income (Loss)
$
(1,610
)
 
$
471

 
$
(1,139
)