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Minimum Capital Requirements | 3 Months Ended
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Mar. 31, 2022
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] |
Minimum Capital Requirements | Minimum capital requirements: Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. Under regulatory guidance for non-advanced approaches institutions, the Bank and Company are required to maintain minimum capital ratios as outlined in the table below. Additionally, under U.S. Basel III Capital Rules, the decision was made to opt out of including accumulated other comprehensive income in regulatory capital. As of March 31, 2022 and December 31, 2021, the Bank and Company met all capital adequacy requirements to which they are subject. In March 2020, the OCC, the Board of Governors of the Federal Reserve System, and the FDIC announced a final rule to delay the estimated impact on regulatory capital stemming from the implementation of CECL. The final rule maintained the three-year transition option in the previous rule and provides banks the option to delay for two years an estimate of CECL’s effect on regulatory capital, relative to the incurred loss methodology’s effect on regulatory capital, followed by a three-year transition period (five-year transition option). The Company adopted the capital transition relief over the permissible five-year period and delayed the initial impact of CECL adoption plus 25% of the quarterly increases in ACL through December 31, 2021. As of January 1, 2022, the cumulative amount of the transition adjustments became fixed and are being phased out of regulatory capital calculations evenly over a three year period, with 75% of the transition provision’s impact being recognized in 2022, 50% recognized in 2023, and 25% recognized in 2024. 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 The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1F -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958575-112826 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)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958569-112826 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1D -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958573-112826 + Details
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