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Premises and Equipment - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 4.6 $ 4.4 $ 3.3
Lease liabilities 14.0 15.0  
Operating lease right-of-use asset $ 12.9 $ 13.9  
Operating lease, weighted average remaining lease term (in years) 10 years 6 months 11 years 7 months 6 days  
Operating lease, weighted average discount rate, (as a percentage) 3.10% 3.00%  
Operating lease, liability, statement of financial position [Extensible Enumeration] 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