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Minimum Capital Requirements (Tables) | 3 Months Ended
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Mar. 31, 2022
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] |
Schedule of Actual and Required Capital Amounts and Ratios | Actual and required capital amounts and ratios are included below as of the dates indicated.
As of March 31, 2022 |  | Actual |  |  |  | Minimum Capital adequacy with capital buffer |  | To be well capitalized under prompt corrective action provisions
|  | Amount |  | Ratio |  |  |  |  |  | Amount |  | Ratio |  | Amount |  | Ratio
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,456,669 |  |  | 14.2 | % |  |  |  |  |  | $ | 1,077,296 |  |  | 10.5 | % |  | N/A |  | N/A
FirstBank |  | 1,413,849 |  |  | 13.8 | % |  |  |  |  |  | 1,075,838 |  |  | 10.5 | % |  | $ | 1,024,608 |  |  | 10.0 | %
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,264,358 |  |  | 12.3 | % |  |  |  |  |  | $ | 872,096 |  |  | 8.5 | % |  | N/A |  | N/A
FirstBank |  | 1,221,538 |  |  | 11.9 | % |  |  |  |  |  | 870,917 |  |  | 8.5 | % |  | $ | 819,686 |  |  | 8.0 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,264,358 |  |  | 10.2 | % |  |  |  |  |  | $ | 497,942 |  |  | 4.0 | % |  | N/A |  | N/A
FirstBank |  | 1,221,538 |  |  | 9.8 | % |  |  |  |  |  | 497,337 |  |  | 4.0 | % |  | $ | 621,671 |  |  | 5.0 | %
Common Equity Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,234,358 |  |  | 12.0 | % |  |  |  |  |  | $ | 718,197 |  |  | 7.0 | % |  | N/A |  | N/A
FirstBank |  | 1,221,538 |  |  | 11.9 | % |  |  |  |  |  | 717,226 |  |  | 7.0 | % |  | $ | 665,995 |  |  | 6.5 | %
As of December 31, 2021 |  | Actual |  |  |  | Minimum Capital adequacy with capital buffer |  | To be well capitalized under prompt corrective action provisions
|  | Amount |  | Ratio |  |  |  |  |  | Amount |  | Ratio |  | Amount |  | Ratio
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,434,581 |  |  | 14.5 | % |  |  |  |  |  | $ | 1,039,984 |  |  | 10.5 | % |  | N/A |  | N/A
FirstBank |  | 1,396,407 |  |  | 14.1 | % |  |  |  |  |  | 1,038,760 |  |  | 10.5 | % |  | $ | 989,295 |  |  | 10.0 | %
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,251,874 |  |  | 12.6 | % |  |  |  |  |  | $ | 841,892 |  |  | 8.5 | % |  | N/A |  | N/A
FirstBank |  | 1,213,700 |  |  | 12.3 | % |  |  |  |  |  | 840,901 |  |  | 8.5 | % |  | $ | 791,436 |  |  | 8.0 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,251,874 |  |  | 10.5 | % |  |  |  |  |  | $ | 474,831 |  |  | 4.0 | % |  | N/A |  | N/A
FirstBank |  | 1,213,700 |  |  | 10.2 | % |  |  |  |  |  | 474,044 |  |  | 4.0 | % |  | $ | 592,555 |  |  | 5.0 | %
Common Equity Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,221,874 |  |  | 12.3 | % |  |  |  |  |  | $ | 693,322 |  |  | 7.0 | % |  | N/A |  | N/A
FirstBank |  | 1,213,700 |  |  | 12.3 | % |  |  |  |  |  | 692,507 |  |  | 7.0 | % |  | $ | 643,042 |  |  | 6.5 | %

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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