v3.25.2
ACQUISITIONS (Narrative) (Details)
$ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Apr. 01, 2025
USD ($)
item
shares
Apr. 01, 2024
USD ($)
item
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Business Acquisition [Line Items]              
Purchase price consideration     $ 1,275,247 $ 505,746      
Goodwill     1,710,912   $ 1,710,912   $ 1,214,053
Accretion expense     0        
Merger-related costs     78,900 29,778 83,840 $ 31,652  
American National              
Business Acquisition [Line Items]              
Conversion ratio   1.35          
Additional shares issued | shares   14.3          
Purchase price consideration   $ 505,473          
Number of branches acquired | item   26          
Goodwill   $ 288,842         $ 288,842
Accretion expense           5,000  
Merger-related costs       24,200   25,800  
American National | Wholesale Banking              
Business Acquisition [Line Items]              
Goodwill   210,800          
American National | Consumer Banking              
Business Acquisition [Line Items]              
Goodwill   $ 78,000          
Sandy Spring              
Business Acquisition [Line Items]              
Conversion ratio 0.9            
Additional shares issued | shares 41.0            
Purchase price consideration $ 1,275,969            
Number of branches acquired | item 50            
Goodwill $ 496,859   496,859   496,859    
Accretion expense       $ 21,400 21,000 $ 42,600  
Merger-related costs     $ 63,300   $ 68,000    
Sandy Spring | Wholesale Banking              
Business Acquisition [Line Items]              
Goodwill 387,600            
Sandy Spring | Consumer Banking              
Business Acquisition [Line Items]              
Goodwill $ 109,300