Quarterly report [Sections 13 or 15(d)]

SUBSEQUENT EVENTS (Narrative) (Details)

v3.25.1
SUBSEQUENT EVENTS (Narrative) (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
May 06, 2025
$ / shares
Apr. 01, 2025
USD ($)
shares
Oct. 21, 2024
$ / shares
shares
Jun. 09, 2020
shares
Mar. 31, 2025
USD ($)
$ / shares
Mar. 31, 2024
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
$ / shares
Subsequent Event [Line Items]              
Dividends on common stock (in dollars per share) | $ / shares         $ 0.34 $ 0.32  
Dividends on preferred stock (in dollars per share) | $ / shares         171.88 $ 171.88  
Common stock, par value (in dollars per share) | $ / shares         $ 1.33   $ 1.33
Total assets         $ 24,632,611   $ 24,585,323
Total deposits         20,502,874   $ 20,397,619
Proceeds for issuance of common stock         0 $ 227  
Sandy Spring              
Subsequent Event [Line Items]              
Total assets         13,800,000    
Total loans         11,400,000    
Total deposits         11,200,000    
Conversion ratio   0.9          
Additional shares issued | shares   41,000,000          
Value of common stock issued in merger         $ 1,300,000    
Sandy Spring | Morgan Stanley & Co. LLC [Member]              
Subsequent Event [Line Items]              
Shares issued and sold | shares   11,338,028 9,859,155        
Proceeds for issuance of common stock   $ 385,000          
Underwriter granted option period     30 days        
Number of stocks option, granted | shares     1,478,873        
Maximum [Member] | Sandy Spring | Morgan Stanley & Co. LLC [Member]              
Subsequent Event [Line Items]              
Sale of price per share | $ / shares     $ 35.5        
Common Class A [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends on common stock (in dollars per share) | $ / shares $ 0.34            
Common Class A [Member] | O 2025 Q2 Common Dividends [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends payable, date to be paid Jun. 06, 2025            
Dividends payable, date of record May 23, 2025            
Depositary Shares              
Subsequent Event [Line Items]              
Shares issued and sold | shares       6,900,000      
Depositary Shares | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends on preferred stock (in dollars per share) | $ / shares $ 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] | 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) | $ / shares $ 171.88            
Series A Preferred Stock [Member] | O 2025 Q2 Preferred Dividends [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends payable, date declared May 06, 2025            
Dividends payable, date to be paid Jun. 02, 2025            
Dividends payable, date of record May 16, 2025