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REGULATORY MATTERS AND CAPITAL (Tables) | 12 Months Ended
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Dec. 31, 2023
Regulatory Capital Requirements [Abstract] |
Schedule of Bank Capital Amount and Ratio | The Company and the Bank’s capital amounts and ratios are also presented in the following table as of December 31, (dollars in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Required in Order to Be |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Required for Capital | ​ | Well Capitalized Under |
​ | ​ | Actual | ​ | Adequacy Purposes (1) | ​ | PCA |
​ |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
2023 |  | ​ |  |  |  |  | ​ |  |  |  |  |  |  |  | ​
Common equity Tier 1 capital to risk weighted assets: |  | ​ |  |  |  |  | ​ |  |  |  |  |  |  |  | ​
Consolidated | ​ | $ | 1,790,183 |  | 9.84 | % | $ | 818,681 | ​ | 4.50% | ​ | NA | ​ | NA | ​
Atlantic Union Bank | ​ |  | 2,256,291 |  | 12.48 | % |  | 813,566 | ​ | 4.50% | ​ | 1,175,152 | ​ | 6.50% | ​
Tier 1 capital to risk weighted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consolidated | ​ |  | 1,956,539 |  | 10.76 | % |  | 1,091,007 | ​ | 6.00% | ​ | NA | ​ | NA | ​
Atlantic Union Bank | ​ |  | 2,256,291 |  | 12.48 | % |  | 1,084,755 | ​ | 6.00% | ​ | 1,446,340 | ​ | 8.00% | ​
Total capital to risk weighted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consolidated | ​ |  | 2,464,817 |  | 13.55 | % |  | 1,455,243 | ​ | 8.00% | ​ | NA | ​ | NA | ​
Atlantic Union Bank | ​ |  | 2,378,204 |  | 13.15 | % |  | 1,446,816 | ​ | 8.00% | ​ | 1,808,520 | ​ | 10.00% | ​
Tier 1 capital to average adjusted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consolidated | ​ |  | 1,956,539 |  | 9.63 | % |  | 812,685 | ​ | 4.00% | ​ | NA | ​ | NA | ​
Atlantic Union Bank | ​ |  | 2,256,291 |  | 11.16 | % |  | 808,706 | ​ | 4.00% | ​ | 1,010,883 | ​ | 5.00% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
2022 | ​ |  |  |  |  | ​ |  |  |  |  |  |  |  |  | ​
Common equity Tier 1 capital to risk weighted assets: | ​ |  |  |  |  | ​ |  |  |  |  |  |  |  |  | ​
Consolidated | ​ | $ | 1,684,088 |  | 9.95 | % | $ | 761,648 |  | 4.50% | ​ | NA |  | NA | ​
Atlantic Union Bank | ​ |  | 2,154,594 |  | 12.81 | % |  | 756,883 |  | 4.50% | ​ | 1,093,276 |  | 6.50% | ​
Tier 1 capital to risk weighted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ |  | ​ |  | ​ |  | ​ | ​
Consolidated | ​ |  | 1,850,444 |  | 10.93 | % |  | 1,014,869 |  | 6.00% | ​ | NA |  | NA | ​
Atlantic Union Bank | ​ |  | 2,154,594 |  | 12.81 | % |  | 1,009,178 |  | 6.00% | ​ | 1,345,570 |  | 8.00% | ​
Total capital to risk weighted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ |  | ​ |  | ​ |  | ​ | ​
Consolidated | ​ |  | 2,319,160 |  | 13.70 | % |  | 1,354,254 |  | 8.00% | ​ | NA |  | NA | ​
Atlantic Union Bank | ​ |  | 2,238,106 |  | 13.30 | % |  | 1,346,229 |  | 8.00% | ​ | 1,682,786 |  | 10.00% | ​
Tier 1 capital to average adjusted assets: | ​ |  | ​ |  | ​ | ​ |  | ​ |  | ​ |  | ​ |  | ​ | ​
Consolidated | ​ |  | 1,850,444 |  | 9.42 | % |  | 785,751 |  | 4.00% | ​ | NA |  | NA | ​
Atlantic Union Bank | ​ |  | 2,154,594 |  | 11.02 | % |  | 782,067 |  | 4.00% | ​ | 977,583 |  | 5.00% | ​
(1) Amounts and ratios shown do not include the impact of a capital conservation buffer of 2.50%.

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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//1943274/2147480696/942-505-50-1 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//1943274/2147480696/942-505-50-1B + Details
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