Annual report [Section 13 and 15(d), not S-K Item 405]

SUBSEQUENT EVENTS (Narrative) (Details)

v3.25.4
SUBSEQUENT EVENTS (Narrative) (Details)
$ / shares in Units, $ in Thousands, shares in Millions
 12 Months Ended
Jan. 29, 2026
$ / shares
Apr. 01, 2025
USD ($)
shares
Jun. 09, 2020
Dec. 31, 2025
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
$ / shares
Subsequent Event [Line Items]            
Dividends on common stock (in dollars per share)       $ 1.39 $ 1.3 $ 1.22
Dividends on preferred stock (in dollars per share)       687.52 687.52 $ 687.52
Common stock, par value (in dollars per share)       $ 1.33 $ 1.33  
Total assets | $       $ 37,585,754 $ 24,585,323  
Total deposits | $       30,471,636 20,397,619  
Issuance of common stock in regard to acquisition | $       1,275,247 505,746  
Sandy Spring            
Subsequent Event [Line Items]            
Conversion ratio   0.9        
Additional shares issued | shares   41.0        
Issuance of common stock in regard to acquisition | $   $ 1,275,969        
Common Stock [Member]            
Subsequent Event [Line Items]            
Issuance of common stock in regard to acquisition | $       $ 54,530 $ 19,052  
Common Class A [Member] | O 2026 Q1 Preferred Dividends [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Dividends payable, date declared Jan. 29, 2026          
Common Class A [Member] | O 2026 Q1 Common Dividends [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Dividends on common stock (in dollars per share) $ 0.37          
Dividends payable, date to be paid Feb. 27, 2026          
Dividends payable, date of record Feb. 13, 2026          
Depositary Shares | O 2026 Q1 Preferred Dividends [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Dividends on preferred stock (in dollars per share) $ 0.43          
Series A Preferred Stock [Member]            
Subsequent Event [Line Items]            
Number of preferred stock represented by each depositary share     each representing a 1/400th ownership interest in a share of its Series A preferred stock      
Series A Preferred Stock [Member] | O 2026 Q1 Preferred Dividends [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Number of preferred stock represented by each depositary share each representing a 1/400th ownership interest in a share of Series A preferred stock.          
Dividends on preferred stock (in dollars per share) $ 171.88          
Dividends payable, date to be paid Mar. 02, 2026          
Dividends payable, date of record Feb. 13, 2026