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Income taxes (Details) | 9 Months Ended
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Sep. 30, 2023
Income Tax Contingency [Line Items] |
Effective income tax, percent | 20.00%
Hawaiian Electric Company, Inc. and Subsidiaries |
Income Tax Contingency [Line Items] |
Effective income tax, percent | 22.00%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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- Details
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