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Premises and Equipment - Narrative (Details)
$ in Millions
 1 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
branchLocation
Dec. 31, 2024
USD ($)
branchLocation
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Premises and equipment [Line Items]        
Depreciation expense   $ 3.8 $ 4.6 $ 4.4
Operating lease right-of-use asset $ 26.9 26.9 12.9  
Lease liabilities $ 28.1 $ 28.1 $ 14.0  
Operating lease, weighted average remaining lease term (in years) 12 years 9 months 18 days 12 years 9 months 18 days 10 years 6 months  
Operating lease, weighted average discount rate, (as a percentage) 5.90% 5.90% 3.10%  
Operating lease, liability, statement of financial position [Extensible Enumeration] Accrued interest payable and other liabilities Accrued interest payable and other liabilities Accrued interest payable and other liabilities  
Operating lease, right-of-use asset, statement of financial position [Extensible Enumeration] Accrued interest receivable and other assets Accrued interest receivable and other assets Accrued interest receivable and other assets  
December Sale-Leaseback Transaction        
Premises and equipment [Line Items]        
Purchase price of sale leaseback $ 17.6      
Number of branch locations | branchLocation 4 4    
Sale leaseback, initial lease term 15 years      
Pre-tax gain on sale of assets   $ 11.8    
Total lease liabilities and right-of-use assets $ 15.5 $ 15.5