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Shareholders' equity | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Shareholders' equity | Shareholders' equity Accumulated other comprehensive income/(loss). Changes in the balances of each component of accumulated other comprehensive income/(loss) (AOCI) were as follows:
| HEI Consolidated |  | Hawaiian Electric Consolidated
(in thousands) | Net unrealized gains (losses) on securities |  | Unrealized gains (losses) on derivatives |  | Retirement benefit plans |  | AOCI |  | AOCI-Retirement benefit plans
Balance, December 31, 2023 | $ | (282,963) |  |  | $ | 1,638 |  |  | $ | (8,025) |  |  | $ | (289,350) |  |  | $ | 2,849 |
Current period other comprehensive income (loss) | 31,260 |  |  | (220) |  |  | 113 |  |  | 31,153 |  |  | (93) |
Balance, September 30, 2024 | $ | (251,703) |  |  | $ | 1,418 |  |  | $ | (7,912) |  |  | $ | (258,197) |  |  | $ | 2,756 |
Balance, December 31, 2022 | $ | (328,904) |  |  | $ | 1,991 |  |  | $ | (9,115) |  |  | $ | (336,028) |  |  | $ | 2,861 |
Current period other comprehensive income (loss) | (21,330) |  |  | (827) |  |  | 161 |  |  | (21,996) |  |  | (166) |
Balance, September 30, 2023 | $ | (350,234) |  |  | $ | 1,164 |  |  | $ | (8,954) |  |  | $ | (358,024) |  |  | $ | 2,695 |
Reclassifications out of AOCI were as follows:
|  | Amount reclassified from AOCI |  | Affected line item in the Statements of Income / Balance Sheets
|  | Three months ended September 30 |  | Nine months ended September 30 |
(in thousands) |  | 2024 |  | 2023 |  | 2024 |  | 2023 |
HEI consolidated |  |  |  |  |  |  |  |  |  |
Amortization of unrealized holding losses on held-to-maturity securities |  | $ | 3,366 |  |  | $ | 3,699 |  |  | $ | 9,740 |  |  | $ | 11,065 |  |  | Bank revenues
Net realized gains on derivatives qualifying as cash flow hedges |  | (52) |  |  | (47) |  |  | (151) |  |  | (143) |  |  | Interest expense
Retirement benefit plans: |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost |  | (1,244) |  |  | (446) |  |  | (2,138) |  |  | (1,160) |  |  | See Note 9 for additional details
Impact of D&Os of the PUC included in regulatory assets |  | 1,333 |  |  | 470 |  |  | 2,251 |  |  | 1,321 |  |  | See Note 9 for additional details
Total reclassifications |  | $ | 3,403 |  |  | $ | 3,676 |  |  | $ | 9,702 |  |  | $ | 11,083 |  |  |
Hawaiian Electric consolidated |  |  |  |  |  |  |  |
Retirement benefit plans: |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost |  | $ | (1,331) |  |  | $ | (547) |  |  | $ | (2,344) |  |  | $ | (1,487) |  |  | See Note 9 for additional details
Impact of D&Os of the PUC included in regulatory assets |  | 1,333 |  |  | 470 |  |  | 2,251 |  |  | 1,321 |  |  | See Note 9 for additional details
Total reclassifications |  | $ | 2 |  |  | $ | (77) |  |  | $ | (93) |  |  | $ | (166) |  |  |

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