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Regulatory Capital Requirements (Tables) | 6 Months Ended
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Jun. 30, 2022
Regulatory Capital Requirements |
Schedule of regulatory capital ratios | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | First Hawaiian | ​ | Minimum | ​ | Well- | ​
​ | ​ | First Hawaiian, Inc. | ​ | Bank | ​ | Capital | ​ | Capitalized | ​
(dollars in thousands) |  | Amount |  | Ratio | ​ | Amount |  | Ratio | ​ | Ratio(1) |  | Ratio(1) | ​
June 30, 2022: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common equity tier 1 capital to risk-weighted assets | ​ | $ | 1,828,576 | ​ | 11.98 | % | $ | 1,818,243 | ​ | 11.91 | % | 4.50 | % | 6.50 | %
Tier 1 capital to risk-weighted assets | ​ | ​ | 1,828,576 | ​ | 11.98 | % | ​ | 1,818,243 | ​ | 11.91 | % | 6.00 | % | 8.00 | %
Total capital to risk-weighted assets | ​ | ​ | 2,006,476 | ​ | 13.14 | % | ​ | 1,996,143 | ​ | 13.07 | % | 8.00 | % | 10.00 | %
Tier 1 capital to average assets (leverage ratio) | ​ | ​ | 1,828,576 | ​ | 7.54 | % | ​ | 1,818,243 | ​ | 7.50 | % | 4.00 | % | 5.00 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2021: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common equity tier 1 capital to risk-weighted assets | ​ | $ | 1,783,113 | ​ | 12.24 | % | $ | 1,769,214 | ​ | 12.14 | % | 4.50 | % | 6.50 | %
Tier 1 capital to risk-weighted assets | ​ | ​ | 1,783,113 | ​ | 12.24 | % | ​ | 1,769,214 | ​ | 12.14 | % | 6.00 | % | 8.00 | %
Total capital to risk-weighted assets | ​ | ​ | 1,965,280 | ​ | 13.49 | % | ​ | 1,951,377 | ​ | 13.40 | % | 8.00 | % | 10.00 | %
Tier 1 capital to average assets (leverage ratio) | ​ | ​ | 1,783,113 | ​ | 7.24 | % | ​ | 1,769,214 | ​ | 7.18 | % | 4.00 | % | 5.00 | %
(1) | As defined by the regulations issued by the Board of Governors of the Federal Reserve System, the Office of the Comptroller of the Currency, and Federal Deposit Insurance Corporation (“FDIC”).

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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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