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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
9 Months Ended
Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
13. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following tables present the components of other comprehensive income (loss) for the periods presented:

(dollars in thousands)Before TaxTax EffectNet of Tax
Three Months Ended September 30, 2025   
Net change in fair value of investment securities:   
Net unrealized gains on AFS investment securities arising during the period$11,774 $3,104 $8,670 
Less: Reclassification adjustments from AOCI realized in net income30 22 
Less: Amortization of unrealized losses on investment securities transferred to HTM1,818 479 1,339 
Net change in fair value of investment securities13,622 3,591 10,031 
Net change in fair value of derivatives:
Net unrealized losses arising during the period(583)(154)(429)
Other comprehensive income$13,039 $3,437 $9,602 

(dollars in thousands)Before TaxTax EffectNet of Tax
Three Months Ended September 30, 2024   
Net change in fair value of investment securities:   
Net unrealized gains on AFS investment securities arising during the period$27,092 $7,150 $19,942 
Less: Amortization of unrealized losses on investment securities transferred to HTM1,920 507 1,413 
Net change in fair value of investment securities29,012 7,657 21,355 
Net change in fair value of derivatives:
Net unrealized losses arising during the period(4,317)(1,140)(3,177)
SERP:   
Amortization of net actuarial gain(2)(1)(1)
Other comprehensive income$24,693 $6,516 $18,177 
(dollars in thousands)Before TaxTax EffectNet of Tax
Nine Months Ended September 30, 2025   
Net change in fair value of investment securities:   
Net unrealized gains on AFS investment securities arising during the period$29,408 $7,755 $21,653 
Less: Reclassification adjustments from AOCI realized in net income30 22 
Less: Amortization of unrealized losses on investment securities transferred to HTM5,143 1,356 3,787 
Net change in fair value of investment securities34,581 9,119 25,462 
Net change in fair value of derivatives:
Net unrealized losses arising during the period(4,205)(1,109)(3,096)
Other comprehensive income$30,376 $8,010 $22,366 

(dollars in thousands)Before TaxTax EffectNet of Tax
Nine Months Ended September 30, 2024   
Net change in fair value of investment securities:   
Net unrealized gains on AFS investment securities arising during the period$20,427 $5,391 $15,036 
Less: Amortization of unrealized losses on investment securities transferred to HTM5,425 1,432 3,993 
Net change in fair value of investment securities25,852 6,823 19,029 
Net change in fair value of derivatives:
Net unrealized losses arising during the period$(1,286)$(340)$(946)
SERP:   
Amortization of net actuarial gain(2)(1)(1)
Other comprehensive income$24,564 $6,482 $18,082 
The following tables present the changes in each component of accumulated other comprehensive income (loss), net of tax, for the periods presented:

(dollars in thousands)Investment SecuritiesDerivativesSERPAOCI
Three Months Ended September 30, 2025   
Balance at beginning of period$(106,060)$3,827 $575 $(101,658)
Other comprehensive income (loss) before reclassifications8,670 (429)— 8,241 
Reclassification adjustments from AOCI1,361 — — 1,361 
Total other comprehensive income (loss)10,031 (429)— 9,602 
Balance at end of period$(96,029)$3,398 $575 $(92,056)
(dollars in thousands)Investment SecuritiesDerivativesSERPAOCI
Three Months Ended September 30, 2024   
Balance at beginning of period$(130,248)$7,260 $297 $(122,691)
Other comprehensive income (loss) before reclassifications19,942 (3,177)— 16,765 
Reclassification adjustments from AOCI1,413 — (1)1,412 
Total other comprehensive income (loss)21,355 (3,177)(1)18,177 
Balance at end of period$(108,893)$4,083 $296 $(104,514)
(dollars in thousands)Investment SecuritiesDerivativesSERPAOCI
Nine Months Ended September 30, 2025   
Balance at beginning of period$(121,491)$6,494 $575 $(114,422)
Other comprehensive income (loss) before reclassifications21,653 (3,096)— 18,557 
Reclassification adjustments from AOCI3,809 — — 3,809 
Total other comprehensive income (loss)25,462 (3,096)— 22,366 
Balance at end of period$(96,029)$3,398 $575 $(92,056)

(dollars in thousands)Investment SecuritiesDerivativesSERPAOCI
Nine Months Ended September 30, 2024   
Balance at beginning of period$(127,922)$5,029 $297 $(122,596)
Other comprehensive (loss) income before reclassifications15,036 (946)— 14,090 
Reclassification adjustments from AOCI3,993 — (1)3,992 
Total other comprehensive (loss) income19,029 (946)(1)18,082 
Balance at end of period$(108,893)$4,083 $296 $(104,514)

The following tables present the amounts reclassified out of each component of AOCI for the periods presented:

Amount Reclassified from AOCIAffected Line Item in the Statement Where Net Income is Presented
(dollars in thousands)Three Months Ended September 30,
Details about AOCI Components20252024
Sale of AFS investment securities:
Realized loss on sale of AFS investment securities$30 $— Net loss on sale of investment securities
Tax effect(8)— Income tax benefit
Net of tax22 — 
Amortization of unrealized losses on investment securities transferred to HTM:
Amortization$1,818 $1,920 Interest and dividends on investment securities
Tax effect(479)(507)Income tax benefit
Net of tax1,339 1,413 
SERP:   
Amortization of net actuarial gain— (2)Other operating expense - other
Tax effect— Income tax expense
Net of tax— (1)
Total reclassification adjustments from AOCI for the period, net of tax$1,361 $1,412 
Amount Reclassified from AOCIAffected Line Item in the Statement Where Net Income is Presented
(dollars in thousands)Nine Months Ended September 30,
Details about AOCI Components20252024
Sale of AFS investment securities:
Realized loss on sale of AFS investment securities$30 $— Net loss on sale of investment securities
Tax effect(8)— Income tax benefit
Net of tax22 — 
Amortization of unrealized losses on investment securities transferred to HTM:
Amortization$5,143 $5,425 Interest and dividends on investment securities
Tax effect(1,356)(1,432)Income tax benefit
Net of tax3,787 3,993 
SERP:   
Amortization of net actuarial gain— (2)Other operating expense - other
Tax effect— Income tax expense
Net of tax— (1)
Total reclassification adjustments from AOCI for the period, net of tax$3,809 $3,992