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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 9 Months Ended
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Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of components of other comprehensive income (loss) | The following tables present the components of other comprehensive income for the three and nine months ended September 30, 2019 and 2018, by component:
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended September 30, 2019 |  |  |  |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |  |  |  |
Net unrealized gains arising during the period | $ | 6,027 |  |  | $ | 1,615 |  |  | $ | 4,412 |
Less: Reclassification adjustments from AOCI realized in net income | (36 | ) |  | (10 | ) |  | (26 | )
Net unrealized gains on investment securities | 5,991 |  |  | 1,605 |  |  | 4,386 |
Defined benefit plans: |  |  |  |  |  |  |  |
Amortization of net actuarial loss | 310 |  |  | 31 |  |  | 279 |
Amortization of net transition obligation | 5 |  |  | 3 |  |  | 2 |
Amortization of prior service cost | 4 |  |  | 2 |  |  | 2 |
Defined benefit plans, net | 319 |  |  | 36 |  |  | 283 |
Other comprehensive income | $ | 6,310 |  |  | $ | 1,641 |  |  | $ | 4,669 |
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Three Months Ended September 30, 2018 |  |  |  |  |  |  |  |
Net unrealized losses on investment securities: |  |  |  |  |  |  |  |
Net unrealized losses arising during the period | $ | (8,297 | ) |  | $ | (2,225 | ) |  | $ | (6,072 | )
Less: Reclassification adjustments from AOCI realized in net income | — |  |  | — |  |  | — |
Net unrealized losses on investment securities | (8,297 | ) |  | (2,225 | ) |  | (6,072 | )
Defined benefit plans: |  |  |  |  |  |  |  |
Amortization of net actuarial loss | 289 |  |  | 78 |  |  | 211 |
Amortization of net transition obligation | 5 |  |  | 2 |  |  | 3 |
Amortization of prior service cost | 4 |  |  | 1 |  |  | 3 |
Defined benefit plans, net | 298 |  |  | 81 |  |  | 217 |
Other comprehensive loss | $ | (7,999 | ) |  | $ | (2,144 | ) |  | $ | (5,855 | )
(dollars in thousands) | Before Tax |  | Tax Effect |  | Net of Tax
Nine Months Ended September 30, 2019 |  |  |  |  |  |  |  |
Net unrealized gains on investment securities: |  |  |  |  |  |  |  |
Net unrealized gains arising during the period | $ | 37,671 |  |  | $ | 10,098 |  |  | $ | 27,573 |
Less: Reclassification adjustments from AOCI realized in net income | (36 | ) |  | (10 | ) |  | (26 | )
Net unrealized gains on investment securities | 37,635 |  |  | 10,088 |  |  | 27,547 |
Defined benefit plans: |  |  |  |  |  |  |
Amortization of net actuarial loss | 837 |  |  | 84 |  |  | 753 |
Amortization of net transition obligation | 14 |  |  | 4 |  |  | 10 |
Amortization of prior service cost | 13 |  |  | 3 |  |  | 10 |
Defined benefit plans, net | 864 |  |  | 91 |  |  | 773 |
Other comprehensive inco me | $ | 38,499 |  |  | $ | 10,179 |  |  | $ | 28,320 |
Schedule of changes in each component of AOCI, net of tax | The following tables present the changes in each component of AOCI, net of tax, for the three and nine months ended September 30, 2019 and 2018:
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended September 30, 2019 |  |  |  |  |  |  |  |
Balance at beginning of period | 10,418 |  |  | (5,960 | ) |  | 4,458 |
Other comprehensive income before reclassificatio ns | 4,412 |  |  | — |  |  | 4,412 |
Reclassification adjustments from AOCI | (26 | ) |  | 283 |  |  | 257 |
Total other comprehensive income | 4,386 |  |  | 283 |  |  | 4,669 |
Balance at end of period | $ | 14,804 |  |  | $ | (5,677 | ) |  | $ | 9,127 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Three Months Ended September 30, 2018 |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (14,161 | ) |  | $ | (7,087 | ) |  | $ | (21,248 | )
Other comprehensive loss before reclassifications | (6,072 | ) |  | — |  |  | (6,072 | )
Reclassification adjustments from AOCI | — |  |  | 217 |  |  | 217 |
Total other comprehensive income (loss) | (6,072 | ) |  | 217 |  |  | (5,855 | )
Balance at end of period | $ | (20,233 | ) |  | $ | (6,870 | ) |  | $ | (27,103 | )
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Nine Months Ended September 30, 2019 |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (9,643 | ) |  | $ | (6,450 | ) |  | $ | (16,093 | )
Impact of the adoption of new accounting standards | (3,100 | ) |  | — |  |  | (3,100 | )
Adjusted balance at beginning of period | (12,743 | ) |  | (6,450 | ) |  | (19,193 | )
Other comprehensive income before reclassifications | 27,573 |  |  | — |  |  | 27,573 |
Reclassification adjustments from AOCI | (26 | ) |  | 773 |  |  | 747 |
Total other comprehensive income | 27,547 |  |  | 773 |  |  | 28,320 |
Balance at end of period | $ | 14,804 |  |  | $ | (5,677 | ) |  | $ | 9,127 |
(dollars in thousands) | Investment Securities |  | Defined Benefit Plans |  | AOCI
Nine Months Ended September 30, 2018 |  |  |  |  |  |  |  |
Balance at beginning of period | $ | 5,073 |  |  | $ | (6,112 | ) |  | $ | (1,039 | )
Impact of the adoption of new accounting standards | (139 | ) |  | — |  |  | (139 | )
Adjusted balance at beginning of period | 4,934 |  |  | (6,112 | ) |  | (1,178 | )
Impact of the adoption of new accounting standards | (455 | ) |  | (1,381 | ) |  | (1,836 | )
Other comprehensive loss before reclassifications | (24,712 | ) |  | — |  |  | (24,712 | )
Reclassification adjustments from AOCI | — |  |  | 623 |  |  | 623 |
Total other comprehensive income (loss) | (24,712 | ) |  | 623 |  |  | (24,089 | )
Balance at end of period | $ | (20,233 | ) |  | $ | (6,870 | ) |  | $ | (27,103 | )
Schedule of amounts reclassified out of each component of AOCI | The following table presents the amounts reclassified out of each component of AOCI for the three and nine months ended September 30, 2019 and 2018:
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Three months ended September 30, |
(dollars in thousands) | 2019 |  | 2018 |
Sale of investment securities available-for-sale: |  |  |  |  |
Realized gains (losses) on securities available-for-sale | $ | 36 |  |  | $ | — |  |  | Investment securities gains (losses)
Tax effect | (10 | ) |  | — |  |  | Income tax benefit (expense)
Net of tax | $ | 26 |  |  | $ | — |  |  |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |  |  |
Amortization of net actuarial loss | $ | (310 | ) |  | $ | (289 | ) |  | Salaries and employee benefits
Amortization of net transition obligation | (5 | ) |  | (5 | ) |  | Salaries and employee benefits
Amortization of prior service cost | (4 | ) |  | (4 | ) |  | Salaries and employee benefits
Total before tax | (319 | ) |  | (298 | ) |  |
Tax effect | 36 |  |  | 81 |  |  | Income tax benefit (expense)
Net of tax | $ | (283 | ) |  | $ | (217 | ) |  |
Total reclassification adjustments from AOCI for the period, net of tax | $ | (257 | ) |  | $ | (217 | ) |  |
| Amount Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
Details about AOCI Components | Nine months ended September 30, |
(dollars in thousands) | 2019 |  | 2018 |
Sale of investment securities available-for-sale: |  |  |  |  |
Realized gains (losses) on securities available-for-sale | $ | 36 |  |  | $ | — |  |  | Investment securities gains (losses)
Tax effect | (10 | ) |  | — |  |  | Income tax benefit (expense)
Net of tax | $ | 26 |  |  | $ | — |  |  |
Defined benefit retirement and supplemental executive retirement plan items: |  |  |  |  |  |  |
Amortization of net actuarial loss | $ | (837 | ) |  | $ | (865 | ) |  | Salaries and employee benefits
Amortization of net transition obligation | (14 | ) |  | (14 | ) |  | Salaries and employee benefits
Amortization of prior service cost | (13 | ) |  | (13 | ) |  | Salaries and employee benefits
Total before tax | (864 | ) |  | (892 | ) |  |
Tax effect | 91 |  |  | 269 |  |  | Income tax benefit (expense)
Net of tax | $ | (773 | ) |  | $ | (623 | ) |  |
Total reclassification adjustments from AOCI for the period | $ | (747 | ) |  | $ | (623 | ) |  | Net of tax

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