v3.26.3
ACCUMULATED OTHER COMPREHENSIVE LOSS - Summary of Reclassification Out of Accumulated Other Comprehensive Loss (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]        
Amount reclassified from accumulated other comprehensive loss     $ 0 $ (6,000)
Noninterest income - net realized losses on sales of available for sale securities $ 0 $ 0 0 (8,000)
Related income tax benefit (expense) (11,204,000) (8,516,000) (13,905,000) (24,680,000)
NET INCOME 68,315,000 56,765,000 140,451,000 168,936,000
Unrealized gains (losses) on available for sale securities        
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]        
Amount reclassified from accumulated other comprehensive loss     0 (6,000)
Amount Reclassified from Accumulated Other Comprehensive Loss        
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]        
Amount reclassified from accumulated other comprehensive loss $ 0 $ 0    
NET INCOME     0 (6,000)
Amount Reclassified from Accumulated Other Comprehensive Loss | Unrealized gains (losses) on available for sale securities        
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]        
Noninterest income - net realized losses on sales of available for sale securities     0 (8,000)
Related income tax benefit (expense)     $ 0 $ 2,000