Annual report [Section 13 and 15(d), not S-K Item 405]

BORROWINGS (Narrative) (Details)

v3.25.0.1
BORROWINGS (Narrative) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Apr. 01, 2024
Dec. 31, 2023
Subordinated Borrowing [Line Items]      
Remaining available balance for the federal funds lines $ 597.0   $ 682.0
Maximum collateral dependent line of credit with the FHLB 7,400.0   6,200.0
Remaining borrowing capacity 25.0   25.0
Remaining available borrowings from the Federal Reserve Discount Window 3,000.0   295.4
Amount of funds used from the Federal Reserve Discount Window. 0.0    
FHLB Secured Line Of Credit      
Subordinated Borrowing [Line Items]      
Maximum collateral dependent line of credit with the FHLB 2,800.0   1,700.0
Remaining credit availability on collateral dependent line of credit with the FHLB $ 2,400.0   $ 988.7
American National      
Subordinated Borrowing [Line Items]      
Junior subordinated debenture obligations   $ 28.5