Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS (Narrative) (Details)

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BORROWINGS (Narrative) (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Apr. 01, 2024
Dec. 31, 2023
Subordinated Borrowing [Line Items]      
Remaining available balance for the federal funds lines $ 592.0   $ 682.0
Maximum collateral dependent line of credit with the FHLB 6,400.0   6,200.0
Remaining borrowing capacity 25.0   25.0
FHLB Secured Line Of Credit      
Subordinated Borrowing [Line Items]      
Maximum collateral dependent line of credit with the FHLB 2,700.0   1,700.0
Remaining credit availability on collateral dependent line of credit with the FHLB $ 1,700.0   $ 988.7
American National      
Subordinated Borrowing [Line Items]      
Junior subordinated debenture obligations   $ 28.5