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Bank segment (HEI only) - Capital And Ratio (Details) - American Savings Bank (ASB) $ in Thousands | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Tier 1 leverage, actual capital | $ 714,789 | $ 677,786
Tier 1 leverage, actual ratio | 0.0786 | 0.0838
Tier 1 leverage, required capital | $ 363,630 | $ 323,700
Tier 1 leverage, required ratio | 0.0400 | 0.0400
Tier 1 leverage, required to be well capitalized capital | $ 454,538 | $ 404,625
Tier 1 leverage, required to be well capitalized ratio | 0.0500 | 0.0500
Common equity tier 1, actual capital | $ 714,789 |
Common equity tier 1, actual ratio | 13.29% |
Common equity tier 1, required capital | $ 242,072 |
Common equity tier 1, required ratio | 4.50% |
Common equity tier 1, required to be well capitalized, Capital | $ 349,659 |
Common equity tier 1, required to be well capitalized, Ratio | 6.50% |
Tier 1 capital, actual capital | $ 714,789 |
Tier 1 capital, actual ratio | 0.1329 |
Tier 1 capital, required capital | $ 322,762 |
Tier 1 capital, required ratio | 0.0600 |
Tier 1 capital, Required to be well capitalized, Capital | $ 430,350 |
Tier 1 capital, Required to be well capitalized, Ratio | 0.0800 |
Total capital, Actual capital | $ 769,836 |
Total capital, Actual ratio | 0.1431 |
Total capital, Required capital | $ 430,350 |
Total capital, Required ratio | 0.0800 |
Total capital, Required to be well capitalized, Capital | $ 537,937 |
Total capital, Required to be well capitalized, Ratio | 0.1000 |

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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: 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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