v3.26.3
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Components of Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Net change in fair value of investment securities:        
Amortization of unrealized losses on investment securities transferred to held-to-maturity at fair value     $ (4,973) $ (5,143)
Other comprehensive income (loss) $ (26,447) $ 13,039 (27,982) 30,376
Net change in fair value of investment securities:        
Other comprehensive income (loss) (6,988) 3,437 (7,435) 8,010
Net change in fair value of investment securities:        
Total other comprehensive (loss) income, net of tax (19,459) 9,602 (20,547) 22,366
Net unrealized gains on investment securities        
Net change in fair value of investment securities:        
Net unrealized gains (losses) on AFS investment securities arising during the period (29,921) 11,774 (35,798) 29,408
Amortization of unrealized losses on investment securities transferred to held-to-maturity at fair value 1,756 1,818 4,973 5,143
Net change in fair value of investment securities (28,165) 13,622 (30,825) 34,581
Amortization of net actuarial gain   30   30
Net change in fair value of investment securities:        
Net unrealized losses on AFS investment securities arising during the period (7,905) 3,104 (9,483) 7,755
Less: Amortization of unrealized losses on investment securities transferred to HTM 463 479 1,296 1,356
Net change in fair value of investment securities (7,442) 3,591 (8,187) 9,119
Amortization of net actuarial gain   8   8
Net change in fair value of investment securities:        
Net unrealized losses on AFS investment securities arising during the period (22,016) 8,670 (26,315) 21,653
Amortization of unrealized losses on investment securities transferred to held-to-maturity (1,293) (1,339) (3,677) (3,787)
Net change in fair value of investment securities (20,723) 10,031 (22,638) 25,462
Amortization of net actuarial gain   22   22
Gain (Loss) On Unrealized Losses On Derivative Instruments        
Net change in fair value of investment securities:        
Net unrealized losses arising during the period 1,716 (583) 2,840 (4,205)
Other comprehensive income (loss) 1,716      
Net change in fair value of investment securities:        
Net unrealized gains arising during the period 453 (154) 751 (1,109)
Other comprehensive income (loss) 453      
Net change in fair value of investment securities:        
Net unrealized losses arising during the period 1,263 (429) 2,089 (3,096)
Total other comprehensive (loss) income, net of tax 1,263      
Amortization of net actuarial gain        
Net change in fair value of investment securities:        
Amortization of net actuarial gain 2   3  
Net change in fair value of investment securities:        
Amortization of net actuarial gain 1   1  
Net change in fair value of investment securities:        
Amortization of net actuarial gain 1   2  
SERP        
Net change in fair value of investment securities:        
Other comprehensive income (loss) 2   (3)  
Net change in fair value of investment securities:        
Other comprehensive income (loss) 1   (1)  
Net change in fair value of investment securities:        
Net unrealized losses arising during the period 0 0 0 0
Amortization of net actuarial gain 1 0 2 0
Total other comprehensive (loss) income, net of tax $ 1 $ 0 $ 2 $ 0