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Subsequent event | 9 Months Ended
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Sep. 30, 2025
Subsequent Events [Abstract] |
Subsequent event | Subsequent event Cumulative preferred stock redemption. On October 15, 2025, the Utilities redeemed all of their issued and outstanding cumulative preferred stock for a total of $35.3 million. The cumulative preferred stock of each series was redeemed with its respective premiums, if applicable. Dividends on the cumulative preferred stock ceased to accrue on October 15, 2025. Upon redemption, all rights of the preferred stock holders ceased to exist, except for the right to payment of the redemption price. The loss on redemption of cumulative preferred stock was $1.8 million, which was recorded to additional paid-in capital.
September 30, 2025 | Voluntary liquidation price |  | Redemption price
Series |  |  |
C, D, E, H, J and K (Hawaiian Electric) | $ | 20 |  |  | $ | 21 |
I (Hawaiian Electric) | 20 |  |  | 20 |
G (Hawaii Electric Light) | 100 |  |  | 100 |
H (Maui Electric) | 100 |  |  | 100 |

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/855/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
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