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Regulatory Capital | 12 Months Ended
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Dec. 31, 2023
Banking Regulation, Risk-Based Information [Abstract] |
Regulatory Capital | REGULATORY CAPITAL The Company and the Bank are subject to various regulatory capital requirements administered by federal banking regulators, including the Federal Reserve. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s and the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of the Company’s and Bank’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Parent Company, like all bank holding companies, is not subject to the prompt corrective action provisions. The Company’s and the Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios of total and tier 1 capital to risk-weighted assets, and of tier 1 capital to average assets, as defined in the regulations. As of December 31, 2023, the Company exceeded all capital adequacy requirements to which it is subject. As of December 31, 2023, the most recent notification from the regulatory agencies categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well-capitalized, the institution must maintain minimum total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios as set forth in the following table. There are no conditions or events since the most recent notification that management believes have changed the Bank's categories. As an approved mortgage seller, the Bank is required to maintain a minimum level of capital specified by the United States Department of Housing and Urban Development. At December 31, 2023 and 2022, the Bank met these requirements. The Company’s actual capital amounts and ratios and selected minimum regulatory thresholds and prompt corrective action provisions as of December 31, 2023 and 2022 are presented in the following tables:
| Actual |  | Minimum Required for Capital Adequacy Purposes |  | For Capital Adequacy Purposes Plus Capital Conservation Buffer(1) |  | Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements(2)
December 31, 2023 | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio
Total risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 2,941.1 |  | 13.28 | % |  | $ | 1,771.6 |  | 8.00 | % |  | $ | 2,325.2 |  | 10.50 | % |  | $ | 2,214.5 |  | 10.00 | %
FIB | 2,662.0 |  | 12.04 |  |  | 1,768.3 |  | 8.00 |  |  | 2,320.8 |  | 10.50 |  |  | 2,210.3 |  | 10.00 |
Tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,454.4 |  | 11.08 |  |  | 1,328.7 |  | 6.00 |  |  | 1,882.3 |  | 8.50 |  |  | 1,771.6 |  | 8.00 |
FIB | 2,433.0 |  | 11.01 |  |  | 1,326.2 |  | 6.00 |  |  | 1,878.8 |  | 8.50 |  |  | 1,768.3 |  | 8.00 |
Common equity tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,454.4 |  | 11.08 |  |  | 996.5 |  | 4.50 |  |  | 1,550.1 |  | 7.00 |  |  | 1,439.4 |  | 6.50 |
FIB | 2,433.0 |  | 11.01 |  |  | 994.6 |  | 4.50 |  |  | 1,547.2 |  | 7.00 |  |  | 1,436.7 |  | 6.50 |
Leverage capital ratio: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,454.4 |  | 8.22 |  |  | 1,193.9 |  | 4.00 |  |  | 1,193.9 |  | 4.00 |  |  | 1,492.3 |  | 5.00 |
FIB | 2,433.0 |  | 8.16 |  |  | 1,192.2 |  | 4.00 |  |  | 1,192.2 |  | 4.00 |  |  | 1,490.2 |  | 5.00 |
December 31, 2022 | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio
Total risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 2,875.8 |  | 12.48 | % |  | $ | 1,843.2 |  | 8.00 | % |  | $ | 2,419.2 |  | 10.50 | % |  | $ | 2,304.0 |  | 10.00 | %
FIB | 2,713.5 |  | 11.80 |  |  | 1,839.6 |  | 8.00 |  |  | 2,414.5 |  | 10.50 |  |  | 2,299.5 |  | 10.00 |
Tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,408.8 |  | 10.45 |  |  | 1,382.4 |  | 6.00 |  |  | 1,958.4 |  | 8.50 |  |  | 1,843.2 |  | 8.00 |
FIB | 2,504.1 |  | 10.89 |  |  | 1,379.7 |  | 6.00 |  |  | 1,954.6 |  | 8.50 |  |  | 1,839.6 |  | 8.00 |
Common equity tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,408.8 |  | 10.45 |  |  | 1,036.8 |  | 4.50 |  |  | 1,612.8 |  | 7.00 |  |  | 1,497.6 |  | 6.50 |
FIB | 2,504.1 |  | 10.89 |  |  | 1,034.8 |  | 4.50 |  |  | 1,609.7 |  | 7.00 |  |  | 1,494.7 |  | 6.50 |
Leverage capital ratio: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 2,408.8 |  | 7.75 |  |  | 1,242.9 |  | 4.00 |  |  | 1,242.9 |  | 4.00 |  |  | 1,553.6 |  | 5.00 |
FIB | 2,504.1 |  | 8.07 |  |  | 1,241.1 |  | 4.00 |  |  | 1,241.1 |  | 4.00 |  |  | 1,551.4 |  | 5.00 |
(1) The capital conservation buffer is an additional 2.5% of the amount necessary to meet the minimum risk-based capital requirements for total, tier 1, and common equity tier 1 risk-based capital. (2) The ratios to meet the requirements to be deemed “well-capitalized” are only applicable to FIB. However, the Company manages its capital position as if the requirements apply to the consolidated company and has presented the ratios as if they also applied on a consolidated basis

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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 -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(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 1 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1D Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1F + Details
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