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SHAREHOLDERS' EQUITY AND DIVIDEND LIMITATIONS (Details)
Sep. 30, 2025
vote
shares
Sep. 02, 2025
shares
Sep. 01, 2025
shares
Dec. 31, 2024
shares
Common Stock        
Class of Stock [Line Items]        
Common stock, shares authorized (in shares)   1,900,000,000 160,000,000  
Preferred Stock        
Class of Stock [Line Items]        
Preferred stock, shares authorized (in shares)   120,000 100,000  
Common Class A        
Class of Stock [Line Items]        
Common stock, shares authorized (in shares) 1,897,500,000 1,897,500,000   1,897,500,000
Common stock, shares outstanding (in shares) 220,088,687     200,884,880
Common stock, votes per share | vote 1      
Common Class A | Mechanics Bank Acquisition        
Class of Stock [Line Items]        
Business combination, fixed exchange ratio   3,301.092    
Common Class B        
Class of Stock [Line Items]        
Common stock, shares authorized (in shares) 2,500,000 2,500,000   2,500,000
Common stock, shares outstanding (in shares) 1,114,448     1,114,448
Common stock, votes per share | vote 1      
Common Class B | Mechanics Bank Acquisition        
Class of Stock [Line Items]        
Business combination, fixed exchange ratio   330.1092    
Voting Common Stock | Mechanics Bank Acquisition        
Class of Stock [Line Items]        
Business combination, fixed exchange ratio   3,301.092    
Nonvoting Common Stock | Mechanics Bank Acquisition        
Class of Stock [Line Items]        
Business combination, fixed exchange ratio   330.1092