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Minimum capital requirements (Tables) | 9 Months Ended
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Sep. 30, 2020
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 for the periods presented.
|  | Actual |  | For capital adequacy purposes |  | Minimum Capital adequacy with capital buffer |  | To be well capitalized under prompt corrective action provisions
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
September 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,334,127 |  |  | 15.3 | % |  | $ | 697,583 |  |  | 8.0 | % |  | $ | 915,577 |  |  | 10.5 | % |  | N/A |  | N/A
FirstBank |  | 1,314,864 |  |  | 15.0 | % |  | 701,261 |  |  | 8.0 | % |  | 920,405 |  |  | 10.5 | % |  | $ | 876,576 |  |  | 10.0 | %
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,054,144 |  |  | 12.1 | % |  | $ | 522,716 |  |  | 6.0 | % |  | $ | 740,514 |  |  | 8.5 | % |  | N/A |  | N/A
FirstBank |  | 1,107,144 |  |  | 12.7 | % |  | 523,060 |  |  | 6.0 | % |  | 741,002 |  |  | 8.5 | % |  | $ | 697,414 |  |  | 8.0 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,054,144 |  |  | 11.8 | % |  | $ | 357,564 |  |  | 4.0 | % |  | N/A |  | N/A |  | N/A |  | N/A
FirstBank |  | 1,107,144 |  |  | 12.4 | % |  | 357,143 |  |  | 4.0 | % |  | N/A |  | N/A |  | $ | 446,429 |  |  | 5.0 | %
Common Equity Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 1,024,144 |  |  | 11.8 | % |  | $ | 390,563 |  |  | 4.5 | % |  | $ | 607,543 |  |  | 7.0 | % |  | N/A |  | N/A
FirstBank |  | 1,107,144 |  |  | 12.7 | % |  | 392,295 |  |  | 4.5 | % |  | 610,237 |  |  | 7.0 | % |  | $ | 566,649 |  |  | 6.5 | %
|  | Actual |  | For capital adequacy purposes |  | Minimum Capital adequacy with capital buffer |  | To be well capitalized under prompt corrective action provisions
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 633,549 |  |  | 12.2 | % |  | $ | 415,442 |  |  | 8.0 | % |  | $ | 545,268 |  |  | 10.5 | % |  | N/A |  | N/A
FirstBank |  | 623,432 |  |  | 12.1 | % |  | 412,186 |  |  | 8.0 | % |  | 540,995 |  |  | 10.5 | % |  | $ | 515,233 |  |  | 10.0 | %
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 602,410 |  |  | 11.6 | % |  | $ | 311,591 |  |  | 6.0 | % |  | $ | 441,421 |  |  | 8.50 | % |  | N/A |  | N/A
FirstBank |  | 592,293 |  |  | 11.5 | % |  | 309,022 |  |  | 6.0 | % |  | 437,782 |  |  | 8.50 | % |  | $ | 412,030 |  |  | 8.0 | %
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 602,410 |  |  | 10.1 | % |  | $ | 238,578 |  |  | 4.0 | % |  | N/A |  | N/A |  | N/A |  | N/A
FirstBank |  | 592,293 |  |  | 9.9 | % |  | 239,310 |  |  | 4.0 | % |  | N/A |  | N/A |  | $ | 299,138 |  |  | 5.0 | %
Common Equity Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FB Financial Corporation |  | $ | 572,410 |  |  | 11.1 | % |  | $ | 232,058 |  |  | 4.5 | % |  | $ | 360,979 |  |  | 7.0 | % |  | N/A |  | N/A
FirstBank |  | 592,293 |  |  | 11.5 | % |  | 231,767 |  |  | 4.5 | % |  | 360,526 |  |  | 7.0 | % |  | $ | 334,774 |  |  | 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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