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Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Sep. 30, 2024
Mar. 31, 2025
Core Deposit Intangibles    
Finite Lived Intangible Assets [Line Items]    
Intangible assets amortization period   10 years
Other Intangibles | Minimum    
Finite Lived Intangible Assets [Line Items]    
Intangible assets amortization period   3 years
Other Intangibles | Maximum    
Finite Lived Intangible Assets [Line Items]    
Intangible assets amortization period   12 years
Mid Rivers Insurance Group, Inc    
Finite Lived Intangible Assets [Line Items]    
Goodwill acquired during period $ 6.9