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Capital and Regulatory Matters - Narrative (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($)
Resale Agreement Counterparty [Line Items] |  |  |  |  |
Benefit to capital risk-weighted assets capital ratio, basis point |  |  | 0.0014 |  |
Repurchase of common stock (in shares) | shares | 37,568 | 0 |  |  |
Buyback program at a price per share (in dollars per share) | $ / shares | $ 33.42 |  |  |  |
Repurchase of common stock, value | $ 1,300 |  | $ 1,256 | $ 723 | $ 10,059
Stock repurchase, cumulative shares (in shares) | shares |  |  |  | 330,868 |
Stock repurchase, cumulative value |  |  |  | $ 10,800 |
Repurchased amount |  | $ 28,000 | 28,000 |  |
Origin Bank | Origin Bank |  |  |  |  |
Resale Agreement Counterparty [Line Items] |  |  |  |  |
Aggregate dividends without prior regulatory approval |  | $ 110,800 | $ 110,800 |  |

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