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Capital and Regulatory Matters - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 31, 2022
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Resale Agreement Counterparty [Line Items]        
Transition regulatory capital amount   $ 1,900,000   $ 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   $ 50,500,000