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Other Comprehensive Income (Loss) (Tables)
 12 Months Ended
Dec. 31, 2018
Stockholders' Equity Note [Abstract]  
Schedule of tax effect allocated to each component of other comprehensive income
The tax effect allocated to each component of other comprehensive income (loss) were as follows:
 
December 31, 2018
Before-Tax Amount
 
Tax (Expense) Benefit
 
Net of Tax
Available-for-sale securities:
 
 
 
 
 
(in thousands)
 
 
 
 
 
Change in net unrealized loss during the period
$
(14,550
)
 
$
3,569

 
$
(10,981
)
Reclassification adjustment for net realized loss on sale included in available-for-sale securities
440

 
(108
)
 
332

Net unrealized losses
(14,110
)
 
3,461

 
(10,649
)
 
 
 
 
 
 
Employee benefit plans:
 
 
 
 
 
Net retirement plan loss
(3,437
)
 
843

 
(2,594
)
Amortization of net retirement plan actuarial gain
1,719

 
(421
)
 
1,298

Amortization of net retirement plan prior service (cost) credit
15

 
(4
)
 
11

Employee benefit plans
(1,703
)
 
418

 
(1,285
)
 
 
 
 
 
 
Other comprehensive loss
$
(15,813
)
 
$
3,879

 
$
(11,934
)
  
December 31, 2017
Before-Tax Amount
 
Tax (Expense) Benefit
 
Net of Tax
Available-for-sale securities:
 
 
 
 
 
(in thousands)
 
 
 
 
 
Change in net unrealized loss during the period
$
(4,442
)
 
$
1,761

 
$
(2,681
)
Reclassification adjustment for net realized loss on sale included in available-for-sale securities
407

 
(163
)
 
244

Net unrealized losses
(4,035
)
 
1,598

 
(2,437
)
 
 
 
 
 
 
Employee benefit plans:
 
 
 
 
 
Net retirement plan loss
(4,549
)
 
1,115

 
(3,434
)
Net retirement plan prior service credit
964

 
(236
)
 
728

Amortization of net retirement plan actuarial gain
1,508

 
(603
)
 
905

Amortization of net retirement plan prior service (cost) credit
15

 
(6
)
 
9

Employee benefit plans
(2,062
)
 
270

 
(1,792
)
 
 
 
 
 
 
Other comprehensive loss
$
(6,097
)
 
$
1,868

 
$
(4,229
)

 
December 31, 2016
Before-Tax Amount
 
Tax (Expense) Benefit
 
Net of Tax
Available-for-sale securities:
 
 
 
 
 
(in thousands)
 
 
 
 
 
Change in net unrealized loss during the period
$
(7,689
)
 
$
3,074

 
$
(4,615
)
Reclassification adjustment for net realized gain on sale included in available-for-sale securities
(926
)
 
370

 
(556
)
Net unrealized losses
(8,615
)
 
3,444

 
(5,171
)
 
 
 
 
 
 
Employee benefit plans:
 
 
 
 
 
Net retirement plan loss
(2,787
)
 
1,114

 
(1,673
)
Net retirement plan prior service credit
(188
)
 
75

 
(113
)
Amortization of net retirement plan actuarial loss
1,338

 
(535
)
 
803

Amortization of net retirement plan prior service (cost) credit
76

 
(30
)
 
46

Employee benefit plans
(1,561
)
 
624

 
(937
)
 
 
 
 
 
 
Other comprehensive loss
$
(10,176
)
 
$
4,068

 
$
(6,108
)
Schedule of accumulated other comprehensive income
The following table presents the activity in our accumulated other comprehensive loss for the periods indicated:
 
(in thousands)
Available-for-Sale
Securities
 
Employee Benefit
Plans
 
Accumulated Other
Comprehensive
Income (loss)
Balance at January 1, 2016
$
(2,744
)
 
$
(28,257
)
 
$
(31,001
)
Other comprehensive loss
(5,171
)
 
(937
)
 
(6,108
)
Balance at December 31, 2016
$
(7,915
)
 
$
(29,194
)
 
$
(37,109
)
 
 
 
 
 
 
Balance at January 1, 2017
(7,915
)
 
(29,194
)
 
(37,109
)
Other comprehensive loss
(2,437
)
 
(1,792
)
 
(4,229
)
Balance at reclassification due to adoption of ASU 2018-02
$
(2,653
)
 
$
(7,305
)
 
$
(9,958
)
Balance at December 31, 2017
(13,005
)
 
(38,291
)
 
(51,296
)
 
 
 
 
 
 
Balance at January 1, 2018
(13,005
)
 
(38,291
)
 
(51,296
)
Other comprehensive loss
(10,649
)
 
(1,285
)
 
(11,934
)
Adoption of ASU 2016-01
65

 
0

 
65

Balance at December 31, 2018
$
(23,589
)
 
$
(39,576
)
 
$
(63,165
)

December 31, 2018
 
 
 
Details about Accumulated other Comprehensive Income Components (in thousands)
Amount Reclassified from Accumulated Other Comprehensive (Loss)1
 
Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities:
 
 
 
Unrealized gains and losses on available-for-sale securities
$
(440
)
 
Net (loss) gain on securities transactions
 
108

 
Tax benefit
 
(332
)
 
Net of tax
Employee benefit plans:
 
 
 
Amortization of the following2
 
 
 
Net retirement plan actuarial gain
(1,719
)
 
Other operating expense
Net retirement plan prior service credit
(15
)
 
Other operating expense
 
(1,734
)
 
Total before tax
 
425

 
Tax benefit
 
(1,309
)
 
Net of tax
 
December 31, 2017
 
 
 
Details about Accumulated other Comprehensive Income Components (in thousands)
Amount Reclassified from Accumulated Other Comprehensive (Loss)1
 
Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities:
 
 
 
Unrealized gains and losses on available-for-sale securities
$
(407
)
 
Net (loss) gain on securities transactions
 
163

 
Tax benefit
 
(244
)
 
Net of tax
Employee benefit plans:
 
 
 
Amortization of the following2
 
 
 
Net retirement plan actuarial gain
(1,508
)
 
Other operating expense
Net retirement plan prior service credit
(15
)
 
Other operating expense
 
(1,523
)
 
Total before tax
 
609

 
Tax benefit
 
(914
)
 
Net of tax
1 Amounts in parentheses indicate debits in income statement.
2 The accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (See Note 11 - “Employee Benefit Plans”).