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Securities - Narrative (Details)
 3 Months Ended
Jun. 30, 2024
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
investment
Dec. 31, 2023
USD ($)
investment
Dec. 31, 2009
USD ($)
Debt Securities, Available-for-sale [Line Items]        
Available-for-sale securities identified to be sold   $ 375,321,000    
Loss on securities $ 34,893,000      
Loss on securities after tax $ 27,189,000      
Price per share after tax (in dollars per share) | $ / shares $ 0.92      
Carrying amount of securities pledged   1,065,880,000 $ 366,576,000  
Allowance for credit losses for available-for-sale securities   $ 0 $ 0  
Debt Securities, available-for-sale, accrued interest, after allowance for credit loss, statement of financial position [Extensible Enumeration]   Accrued Interest Payable and Other Liabilities Accrued Interest Payable and Other Liabilities  
Accrued interest receivable on available-for-sale securities   $ 8,110,000 $ 9,620,000  
Original investment of equity security   353,000 353,000  
Other than temporary impairment recognized through earnings   $ 0 $ 0  
Equity Securities        
Debt Securities, Available-for-sale [Line Items]        
Number of equity securities held in non-controlling investment banking | investment   1 1  
Original investment of equity security       $ 1,350,000
Other than temporary impairment recognized through earnings       $ 997,000