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Borrowed Funds - Narrative (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
FHLB advances $ 1,705,585 $ 1,072,611
Federal Home Loan Bank Advances    
Debt Instrument [Line Items]    
FHLB advances 943,000 0
Federal Home Loan Bank Advances    
Debt Instrument [Line Items]    
FHLB advances $ 762,600 $ 1,070,000