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DEPOSITS DEPOSITS (Maturities and Weighted Average Interest Rates of Certificates of Deposit) (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Maturities of Time Deposits [Abstract]    
Maturing in one year or less $ 1,482,139  
Maturing after one year through two years 40,747  
Maturing after two years through three years 9,499  
Maturing after three years through four years 2,397  
Maturing after four years through five years 5,112  
Maturing after five years 488  
Total certificates of deposit $ 1,540,382 $ 1,499,672
Weighted Average Rate [Abstract]    
Time Deposits, Weighted Average Interest Rate, Maturities Year One 3.47%  
Time Deposits, Weighted Average Interest Rate, Maturities Year Two 2.29%  
Time Deposits, Weighted Average Interest Rate, Maturities Year Three 0.65%  
Time Deposits, Weighted Average Interest Rate, Maturities Year Four 0.87%  
Time Deposits, Weighted Average Interest Rate, Maturities Year Five 2.75%  
Time Deposits, Weighted Average Interest Rate, Maturities Greater than Five Years 0.50%  
Weighted Average Rate Domestic Deposit, Time Deposits 3.41%