Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS (Consideration Transferred) (Details)

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ACQUISITIONS (Consideration Transferred) (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2024
Jun. 30, 2024
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Business Acquisition [Line Items]          
Purchase price consideration   $ 505,746      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]          
Total assets     $ 2,948,035   $ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]          
Total liabilities     2,730,061   $ 0
Preliminary goodwill     1,212,710 $ 925,211  
American National          
Business Acquisition [Line Items]          
Purchase price consideration $ 505,473        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]          
Cash and cash equivalents 55,060        
Securities AFS 507,764        
LHFS 2,611        
LHFI 2,151,517        
Premises and equipment 35,802        
CDI and other intangibles 84,687        
Bank owned life insurance 30,627        
Other assets 79,967        
Total assets 2,948,035        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]          
Deposits 2,583,089        
Short-term borrowings 98,336        
Long-term borrowings 25,890        
Other liabilities 22,746        
Total liabilities 2,730,061        
Fair value of net assets acquired 217,974        
Preliminary goodwill $ 287,499   $ 287,499 $ 0