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REGULATORY CAPITAL (Tables) | 6 Months Ended
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Jun. 30, 2025
Banking and Thrift, Other Disclosure [Abstract] |
Schedule of Regulatory Capital Requirements Applicable to Busey and Busey Bank | The following tables summarize regulatory capital requirements applicable to First Busey and its subsidiary bank:
|  | As of June 30, 2025
|  | Actual |  | Minimum Capital Requirement |  | Minimum To Be Well Capitalized
(dollars in thousands) |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
Common equity Tier 1 capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 1,888,100 |  |  | 12.22 | % |  | $ | 695,299 |  |  | 4.50 | % |  | $ | 1,004,321 |  |  | 6.50 | %
Busey Bank |  | $ | 2,098,016 |  |  | 13.62 | % |  | $ | 692,964 |  |  | 4.50 | % |  | $ | 1,000,949 |  |  | 6.50 | %
Tier 1 capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 2,110,850 |  |  | 13.66 | % |  | $ | 927,065 |  |  | 6.00 | % |  | $ | 1,236,087 |  |  | 8.00 | %
Busey Bank |  | $ | 2,098,016 |  |  | 13.62 | % |  | $ | 923,953 |  |  | 6.00 | % |  | $ | 1,231,937 |  |  | 8.00 | %
Total capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 2,434,172 |  |  | 15.75 | % |  | $ | 1,236,087 |  |  | 8.00 | % |  | $ | 1,545,109 |  |  | 10.00 | %
Busey Bank |  | $ | 2,237,760 |  |  | 14.53 | % |  | $ | 1,231,937 |  |  | 8.00 | % |  | $ | 1,539,921 |  |  | 10.00 | %
Leverage ratio of Tier 1 capital to average assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 2,110,850 |  |  | 11.26 | % |  | $ | 749,585 |  |  | 4.00 | % |  | N/A |  | N/A
Busey Bank |  | $ | 2,098,016 |  |  | 11.22 | % |  | $ | 747,971 |  |  | 4.00 | % |  | $ | 934,963 |  |  | 5.00 | %
|  | As of December 31, 2024
|  | Actual |  | Minimum Capital Requirement |  | Minimum To Be Well Capitalized
(dollars in thousands) |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
Common equity Tier 1 capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 1,237,301 |  |  | 14.10 | % |  | $ | 394,840 |  |  | 4.50 | % |  | $ | 570,325 |  |  | 6.50 | %
Busey Bank |  | $ | 1,438,296 |  |  | 16.46 | % |  | $ | 393,277 |  |  | 4.50 | % |  | $ | 568,067 |  |  | 6.50 | %
Tier 1 capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 1,314,301 |  |  | 14.98 | % |  | $ | 526,453 |  |  | 6.00 | % |  | $ | 701,938 |  |  | 8.00 | %
Busey Bank |  | $ | 1,438,296 |  |  | 16.46 | % |  | $ | 524,369 |  |  | 6.00 | % |  | $ | 699,159 |  |  | 8.00 | %
Total capital to risk weighted assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 1,625,943 |  |  | 18.53 | % |  | $ | 701,938 |  |  | 8.00 | % |  | $ | 877,422 |  |  | 10.00 | %
Busey Bank |  | $ | 1,520,938 |  |  | 17.40 | % |  | $ | 699,159 |  |  | 8.00 | % |  | $ | 873,949 |  |  | 10.00 | %
Leverage ratio of Tier 1 capital to average assets |  |  |  |  |  |  |  |  |  |  |  |
First Busey |  | $ | 1,314,301 |  |  | 11.06 | % |  | $ | 475,348 |  |  | 4.00 | % |  | N/A |  | N/A
Busey Bank |  | $ | 1,438,296 |  |  | 12.14 | % |  | $ | 473,878 |  |  | 4.00 | % |  | $ | 592,347 |  |  | 5.00 | %

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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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