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Regulatory Capital (Tables) | 12 Months Ended
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Dec. 31, 2024
Banking And Thrift Disclosure [Abstract] |
Schedule of Required Regulatory Capital | At December 31, 2024 and 2023, the Company and Seacoast Bank, its wholly-owned banking subsidiary, were both considered “well-capitalized” based on the applicable U.S. regulatory capital ratio requirements as reflected in the table below:
|  |  |  |  |  | Minimum to meet “Well Capitalized” Requirements |  | Minimum for Capital Adequacy Purpose 1 |
(Dollars in thousands) |  | Amount |  | Ratio |  | Amount |  |  | Ratio |  | Amount |  |  | Ratio |
Seacoast Banking Corporation of Florida |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Consolidated) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2024: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital Ratio |  | $ | 1,785,247 |  |  | 16.18 | % |  | N/A |  |  | N/A |  | $ | 882,582 |  |  | ≥ | 8.00 | % |
Tier 1 Capital Ratio |  | 1,633,819 |  |  | 14.81 |  |  | N/A |  |  | N/A |  | 661,937 |  |  | ≥ | 6.00 |  |
Common Equity Tier 1 Capital Ratio |  | 1,561,325 |  |  | 14.15 |  |  | N/A |  |  | N/A |  | 496,453 |  |  | ≥ | 4.50 |  |
Leverage Ratio |  | 1,633,819 |  |  | 11.19 |  |  | N/A |  |  | N/A |  | 584,274 |  |  | ≥ | 4.00 |  |
At December 31, 2023: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital Ratio |  | $ | 1,713,797 |  |  | 15.92 | % |  | N/A |  |  | N/A |  | $ | 861,355 |  |  | ≥ | 8.00 | % |
Tier 1 Capital Ratio |  | 1,565,710 |  |  | 14.54 |  |  | N/A |  |  | N/A |  | 646,017 |  |  | ≥ | 6.00 |  |
Common Equity Tier 1 Capital Ratio |  | 1,493,499 |  |  | 13.87 |  |  | N/A |  |  | N/A |  | 484,512 |  |  | ≥ | 4.50 |  |
Leverage Ratio |  | 1,565,710 |  |  | 11.00 |  |  | N/A |  |  | N/A |  | 569,317 |  |  | ≥ | 4.00 |  |
Seacoast National Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(A Wholly Owned Bank Subsidiary) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2024: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital Ratio |  | $ | 1,685,451 |  |  | 15.30 | % |  | $ | 1,101,383 |  |  | ≥ | 10.00 | % |  | $ | 881,106 |  |  | ≥ | 8.00 | % |
Tier 1 Capital Ratio |  | 1,555,986 |  |  | 14.13 |  |  | 881,106 |  |  | ≥ | 8.00 |  |  | 660,830 |  |  | ≥ | 6.00 |  |
Common Equity Tier 1 Capital Ratio |  | 1,555,980 |  |  | 14.13 |  |  | 715,899 |  |  | ≥ | 6.50 |  |  | 495,622 |  |  | ≥ | 4.50 |  |
Leverage Ratio |  | 1,555,986 |  |  | 10.66 |  |  | 729,699 |  |  | ≥ | 5.00 |  |  | 583,760 |  |  | ≥ | 4.00 |  |
At December 31, 2023: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital Ratio |  | $ | 1,593,431 |  |  | 14.82 | % |  | $ | 1,075,494 |  |  | ≥ | 10.00 | % |  | $ | 860,395 |  |  | ≥ | 8.00 | % |
Tier 1 Capital Ratio |  | 1,466,878 |  |  | 13.64 |  |  | 860,395 |  |  | ≥ | 8.00 |  |  | 645,296 |  |  | ≥ | 6.00 |  |
Common Equity Tier 1 Capital Ratio |  | 1,466,874 |  |  | 13.64 |  |  | 699,071 |  |  | ≥ | 6.50 |  |  | 483,972 |  |  | ≥ | 4.50 |  |
Leverage Ratio |  | 1,466,878 |  |  | 10.32 |  |  | 711,039 |  |  | ≥ | 5.00 |  |  | 568,831 |  |  | ≥ | 4.00 |  |
1 Excludes the Basel III capital conservation buffer of 2.5%, which if not exceeded may constrain dividends, equity repurchases and compensation.
N/A - not applicable.

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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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