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Capital and Regulatory Matters - Narrative (Details) - USD ($)
1 Months Ended 9 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Jul. 31, 2022
Sep. 30, 2024
Sep. 30, 2023
Resale Agreement Counterparty [Line Items]          
Transition regulatory capital amount $ 637,000 $ 2,500,000      
Purchase price     $ 50,000,000    
Stock buyback program, period     3 years    
Repurchase of stock (in shares)       0 0
Origin Bank | Origin Bank          
Resale Agreement Counterparty [Line Items]          
Aggregate dividends without prior regulatory approval $ 69,600,000     $ 69,600,000