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Capital and Regulatory Matters (Tables) | 9 Months Ended
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Sep. 30, 2025
Banking Regulation [Abstract] |
Schedule of Actual Capital Amounts and Ratios | The actual capital amounts and ratios of the Company and the Bank at September 30, 2025, and December 31, 2024, are presented in the following table:
(Dollars in thousands) September 30, 2025 | Actual |  | Minimum Capital Required - Basel III |  | To be Well Capitalized Under Prompt Corrective Action Provisions
Common Equity Tier 1 Capital to Risk-Weighted Assets | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
Origin Bancorp, Inc. | $ | 1,113,214 |  |  | 13.59 | % |  | $ | 573,421 |  |  | 7.00 | % |  | N/A |  | N/A
Origin Bank | 1,050,761 |  |  | 12.93 |  |  | 568,888 |  |  | 7.00 |  |  | $ | 528,253 |  |  | 6.50 | %
Tier 1 Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,129,191 |  |  | 13.79 |  |  | 696,192 |  |  | 8.50 |  |  | N/A |  | N/A
Origin Bank | 1,050,761 |  |  | 12.93 |  |  | 690,793 |  |  | 8.50 |  |  | 650,158 |  |  | 8.00 |
Total Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,302,509 |  |  | 15.90 |  |  | 860,131 |  |  | 10.50 |  |  | N/A |  | N/A
Origin Bank | 1,150,884 |  |  | 14.16 |  |  | 853,331 |  |  | 10.50 |  |  | 812,697 |  |  | 10.00 |
Leverage Ratio |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,129,191 |  |  | 11.69 |  |  | 386,283 |  |  | 4.00 |  |  | N/A |  | N/A
Origin Bank | 1,050,761 |  |  | 10.97 |  |  | 383,154 |  |  | 4.00 |  |  | 478,942 |  |  | 5.00 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Common Equity Tier 1 Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,085,860 |  |  | 13.32 |  |  | 570,647 |  |  | 7.00 |  |  | N/A |  | N/A
Origin Bank | 1,075,768 |  |  | 13.29 |  |  | 566,620 |  |  | 7.00 |  |  | 526,147 |  |  | 6.50 |
Tier 1 Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,101,766 |  |  | 13.52 |  |  | 692,929 |  |  | 8.50 |  |  | N/A |  | N/A
Origin Bank | 1,075,768 |  |  | 13.29 |  |  | 688,038 |  |  | 8.50 |  |  | 647,565 |  |  | 8.00 |
Total Capital to Risk-Weighted Assets |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,339,735 |  |  | 16.44 |  |  | 855,670 |  |  | 10.50 |  |  | N/A |  | N/A
Origin Bank | 1,239,644 |  |  | 15.31 |  |  | 850,353 |  |  | 10.50 |  |  | 809,860 |  |  | 10.00 |
Leverage Ratio |  |  |  |  |  |  |  |  |  |  |
Origin Bancorp, Inc. | 1,101,766 |  |  | 11.08 |  |  | 397,635 |  |  | 4.00 |  |  | N/A |  | N/A
Origin Bank | 1,075,768 |  |  | 10.89 |  |  | 395,154 |  |  | 4.00 |  |  | 493,943 |  |  | 5.00 |

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- Definition Banking Regulation + References No definition available. + Details
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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B + Details
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