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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2024
Accumulated Other Comprehensive Loss [Abstract] |
Schedule of Accumulated Other Comprehensive Loss | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Investment | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | securities- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | with credit | ​ | Investment | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | related | ​ | securities- | ​ | Investment | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | impairment | ​ | all other | ​ | securities- | ​ | Cash Flow | ​ | Pension | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | AFS |  | AFS |  | HTM |  | Hedge |  | Plan |  | SERP |  | Total
Accumulated OCL, net: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - January 1, 2024 | ​ | ​ | (2,482) | ​ | ​ | (13,217) | ​ | ​ | (5,201) | ​ | ​ | 569 | ​ | ​ | (14,263) | ​ | ​ | (1,233) | ​ | ​ | (35,827)
Other comprehensive income/(loss) before reclassifications | ​ | ​ | 155 | ​ | ​ | (459) | ​ | ​ | — | ​ | ​ | 54 | ​ | ​ | 1,096 | ​ | ​ | — | ​ | ​ | 846
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | (37) | ​ | ​ | — | ​ | ​ | 118 | ​ | ​ | — | ​ | ​ | 149 | ​ | ​ | 29 | ​ | ​ | 259
Balance - March 31, 2024 | ​ | $ | (2,364) | ​ | $ | (13,676) | ​ | $ | (5,083) | ​ | $ | 623 | ​ | $ | (13,018) | ​ | $ | (1,204) | ​ | $ | (34,722)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - January 1, 2023 | ​ | $ | (1,711) | ​ | $ | (16,380) | ​ | $ | (5,703) | ​ | $ | 797 | ​ | $ | (16,603) | ​ | $ | 574 | ​ | $ | (39,026)
Other comprehensive (loss)/income before reclassifications | ​ | ​ | (1,180) | ​ | ​ | 985 | ​ | ​ | — | ​ | ​ | (138) | ​ | ​ | 123 | ​ | ​ | — | ​ | ​ | (210)
Amounts reclassified from accumulated other comprehensive loss | ​ | ​ | (37) | ​ | ​ | — | ​ | ​ | 133 | ​ | ​ | — | ​ | ​ | 184 | ​ | ​ | (1) | ​ | ​ | 279
Balance - March 31, 2023 | ​ | $ | (2,928) | ​ | $ | (15,395) | ​ | $ | (5,570) | ​ | $ | 659 | ​ | $ | (16,296) | ​ | $ | 573 | ​ | $ | (38,957)
Components of Comprehensive Income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Before | ​ | Tax | ​ | ​
Components of Other Comprehensive Income | ​ | Tax | ​ | (Expense) | ​ | ​
(in thousands) |  | Amount |  | Benefit |  | Net
For the three months ended March 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale (AFS) securities with credit related impairment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding gains | ​ | $ | 210 | ​ | $ | (55) | ​ | $ | 155
Less: accretable yield recognized in income | ​ | ​ | 50 | ​ | ​ | (13) | ​ | ​ | 37
Net unrealized gains on investments with credit related impairment | ​ | ​ | 160 | ​ | ​ | (42) | ​ | ​ | 118
Available for sale securities – all other: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding losses | ​ | ​ | (623) | ​ | ​ | 164 | ​ | ​ | (459)
Held to maturity securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding gains on securities transferred to held to maturity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Less: amortization recognized in income | ​ | ​ | (160) | ​ | ​ | 42 | ​ | ​ | (118)
Net unrealized gains on HTM securities | ​ | ​ | 160 | ​ | ​ | (42) | ​ | ​ | 118
Cash flow hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding gains | ​ | ​ | 73 | ​ | ​ | (19) | ​ | ​ | 54
Pension Plan: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized net actuarial gain | ​ | ​ | 1,489 | ​ | ​ | (393) | ​ | ​ | 1,096
Less: amortization of unrecognized loss | ​ | ​ | (203) | ​ | ​ | 54 | ​ | ​ | (149)
Net pension plan liability adjustment | ​ | ​ | 1,692 | ​ | ​ | (447) | ​ | ​ | 1,245
SERP: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized net actuarial gain | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Less: amortization of unrecognized loss | ​ | ​ | (39) | ​ | ​ | 10 | ​ | ​ | (29)
Net SERP liability adjustment | ​ | ​ | 39 | ​ | ​ | (10) | ​ | ​ | 29
Other comprehensive income | ​ | $ | 1,501 | ​ | $ | (396) | ​ | $ | 1,105
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Before | ​ | Tax | ​ | ​
Components of Other Comprehensive Income | ​ | Tax | ​ | (Expense) | ​ | ​
(in thousands) |  | Amount |  | Benefit |  | Net
For the three months ended March 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale (AFS) securities with credit related impairment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding losses | ​ | $ | (1,606) | ​ | $ | 426 | ​ | $ | (1,180)
Less: accretable yield recognized in income | ​ | ​ | 50 | ​ | ​ | (13) | ​ | ​ | 37
Net unrealized losses on investments with credit related impairment | ​ | ​ | (1,656) | ​ | ​ | 439 | ​ | ​ | (1,217)
Available for sale securities – all other: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding gains | ​ | ​ | 1,340 | ​ | ​ | (355) | ​ | ​ | 985
Net unrealized gains on all other AFS securities | ​ | ​ | 1,340 | ​ | ​ | (355) | ​ | ​ | 985
Held to maturity securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding gains on securities transferred to held to maturity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Less: amortization recognized in income | ​ | ​ | (181) | ​ | ​ | 48 | ​ | ​ | (133)
Net unrealized gains on HTM securities | ​ | ​ | 181 | ​ | ​ | (48) | ​ | ​ | 133
Cash flow hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized holding loss | ​ | ​ | (188) | ​ | ​ | 50 | ​ | ​ | (138)
Pension Plan: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized net actuarial gain | ​ | ​ | 168 | ​ | ​ | (45) | ​ | ​ | 123
Less: amortization of unrecognized loss | ​ | ​ | (250) | ​ | ​ | 66 | ​ | ​ | (184)
Net pension plan liability adjustment | ​ | ​ | 418 | ​ | ​ | (111) | ​ | ​ | 307
SERP: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized net actuarial gain | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Less: amortization of unrecognized gain | ​ | ​ | 2 | ​ | ​ | (1) | ​ | ​ | 1
Net SERP liability adjustment | ​ | ​ | (2) | ​ | ​ | 1 | ​ | ​ | (1)
Other comprehensive income | ​ | $ | 93 | ​ | $ | (24) | ​ | $ | 69
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reclassification out of Accumulated Other Comprehensive Income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amounts Reclassified from | ​ | Three Months Ended | ​ | ​
Accumulated Other Comprehensive Loss | ​ | March 31, | ​ | Affected Line Item in the Statement
(in thousands) |  | 2024 |  | 2023 |  | Where Net Income is Presented
Net unrealized gains on available for sale investment securities with credit related impairment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accretable yield | ​ | $ | 50 | ​ | $ | 50 | ​ | Interest income on taxable investment securities
Taxes | ​ | ​ | (13) | ​ | ​ | (13) | ​ | Credit for income tax expense
​ | ​ | $ | 37 | ​ | $ | 37 | ​ | Net of tax
Net unrealized losses on held to maturity securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization | ​ | $ | (160) | ​ | $ | (181) | ​ | Interest income on taxable investment securities
Taxes | ​ | ​ | 42 | ​ | ​ | 48 | ​ | Provision for income tax expense
​ | ​ | $ | (118) | ​ | $ | (133) | ​ | Net of tax
Net pension plan liability adjustment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of unrecognized loss | ​ | $ | (203) | ​ | $ | (250) | ​ | Other Expense
Taxes | ​ | ​ | 54 | ​ | ​ | 66 | ​ | Provision for income tax expense
​ | ​ | $ | (149) | ​ | $ | (184) | ​ | Net of tax
Net SERP liability adjustment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of unrecognized (loss)/gain | ​ | $ | (39) | ​ | $ | 2 | ​ | Other Expense
Taxes | ​ | ​ | 10 | ​ | ​ | (1) | ​ | (Credit)/provision for income tax expense
​ | ​ | $ | (29) | ​ | $ | 1 | ​ | Net of tax
Total reclassifications for the period | ​ | $ | (259) | ​ | $ | (279) | ​ | Net of tax

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 1 -Section 45 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-1 + Details
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