v3.26.1
OTHER COMPREHENSIVE INCOME (LOSS) Components of Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
AFS Debt Securities:        
Unrealized holding gains, pre-tax amount $ (2,566) $ 17,239    
Unrealized holdings gains, tax (expense) benefit 584 (3,975)    
Unrealized holdings gains, after-tax amount (1,982) 13,264    
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, pre-tax amount (1,614) (1,524)    
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, tax (expense) benefit 368 386    
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, after-tax amount (1,246) (1,138)    
Net unrealized gains, pre-tax amount (952) 18,763    
Net unrealized gains, tax (expense) benefit 216 (4,361)    
Net unrealized gains, after-tax amount (736) 14,402    
Cash Flow Hedges:        
Net decrease in fair value, pre-tax amount 1,013 (1,861)    
Net decrease in fair value, tax (expense) benefit (231) 424    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax 782 (1,437)    
Less: effective portion reclassified into interest expense, pre-tax amount 282 736    
Less: effective portion reclassified into interest expense, tax (expense) benefit (64) (168)    
Less: effective portion reclassified into interest expense, after-tax amount   568    
Net decrease in fair value, pre-tax amount 731 (2,597)    
Net decrease in fair value, tax (expense) benefit (167) 592    
Net decrease in fair value, after-tax amount 564 (2,005)    
Postretirement Plans:        
Net gain on postretirement plans, pre-tax amount (14) (8)    
Net gain on postretirement plans, tax (expense) benefit 3 2    
Net gain on postretirement plans, net of tax (11) (6)    
Other comprehensive income, pre-tax amount (235) 16,158    
Other comprehensive income, tax (expense) benefit 52 (3,767)    
Other comprehensive (loss) income (183) 12,391    
Less: Amounts reclassified from AOCI (1,017) (564)    
Other comprehensive (loss) income before reclassifications (1,200) 11,827    
Stockholders' Equity Attributable to Parent 710,007 640,054 $ 696,558 $ 531,231
Net Unrealized Gains (Losses) on Cash Flow Hedges(1)        
Postretirement Plans:        
Other comprehensive (loss) income 564 (2,005)    
Less: Amounts reclassified from AOCI 218 568    
Other comprehensive (loss) income before reclassifications 782 (1,437)    
Stockholders' Equity Attributable to Parent 6,042 6,953 5,478 8,958
Net Unrealized Gains (Losses) on Debt Securities(1)        
Postretirement Plans:        
Other comprehensive (loss) income (736) 14,402    
Less: Amounts reclassified from AOCI (1,246) (1,138)    
Other comprehensive (loss) income before reclassifications (1,982) 13,264    
Stockholders' Equity Attributable to Parent (71,141) (89,613) (70,405) (104,015)
Defined Benefit Postretirement Plans(1)        
Postretirement Plans:        
Other comprehensive (loss) income (11) (6)    
Less: Amounts reclassified from AOCI 11 6    
Other comprehensive (loss) income before reclassifications 0 0    
Stockholders' Equity Attributable to Parent 528 405 539 411
Accumulated Other Comprehensive Income (Loss)        
Postretirement Plans:        
Stockholders' Equity Attributable to Parent $ (64,571) $ (82,255) $ (64,388) $ (94,646)