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Electric utility segment - Condensed Consolidating Statement of Changes in Common Stock Equity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance | $ 2,249,377 | $ 2,237,955 | $ 2,202,499 | $ 2,233,504 | $ 2,303,642 | $ 2,390,884 | $ 2,202,499 | $ 2,390,884
Net income for common stock | 41,118 | 54,610 | 54,721 | 62,082 | 52,541 | 69,167 | 150,449 | 183,790
Other comprehensive loss, net of taxes | (34,875) | (7,609) | 20,488 | (96,012) | (87,840) | (117,159) | (21,996) | (301,011)
Common stock dividends | (39,455) | (39,447) | (39,446) | (38,315) | (38,301) | (38,301) |  |
Ending balance | 2,224,354 | 2,249,377 | 2,237,955 | 2,162,922 | 2,233,504 | 2,303,642 | 2,224,354 | 2,162,922
Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance | 2,371,889 | 2,358,884 | 2,344,170 | 2,289,595 | 2,276,884 | 2,261,899 | 2,344,170 | 2,261,899
Net income for common stock | 43,461 | 45,299 | 47,009 | 49,764 | 44,135 | 46,409 | 135,769 | 140,308
Other comprehensive loss, net of taxes | (77) | (44) | (45) | 108 | 51 | 51 | (166) | 210
Common stock dividends | (32,250) | (32,250) | (32,250) | (31,475) | (31,475) | (31,475) | (96,750) | (94,425)
Ending balance | 2,383,023 | $ 2,371,889 | 2,358,884 | 2,307,992 | $ 2,289,595 | 2,276,884 | 2,383,023 | 2,307,992
Consolidating adjustments | Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance |  |  | (701,833) |  |  | (676,237) | (701,833) | (676,237)
Net income for common stock | (3,005) |  |  | (10,577) |  |  | (25,960) | (36,475)
Other comprehensive loss, net of taxes | 9 |  |  | (1) |  |  | 32 | (4)
Common stock dividends |  |  |  |  |  |  | 24,450 | 23,700
Ending balance | (703,311) |  |  | (689,016) |  |  | (703,311) | (689,016)
Hawaiian Electric | Reportable Legal Entities | Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance |  |  | 2,344,170 |  |  | 2,261,899 | 2,344,170 | 2,261,899
Net income for common stock | 43,461 |  |  | 49,764 |  |  | 135,769 | 140,308
Other comprehensive loss, net of taxes | (77) |  |  | 108 |  |  | (166) | 210
Common stock dividends |  |  |  |  |  |  | (96,750) | (94,425)
Ending balance | 2,383,023 |  |  | 2,307,992 |  |  | 2,383,023 | 2,307,992
Hawaii Electric Light | Reportable Legal Entities | Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance |  |  | 344,720 |  |  | 332,900 | 344,720 | 332,900
Net income for common stock | 7,419 |  |  | 4,959 |  |  | 20,884 | 17,994
Other comprehensive loss, net of taxes | (1) |  |  | 2 |  |  | (9) | 4
Common stock dividends |  |  |  |  |  |  | (13,425) | (12,300)
Ending balance | 352,170 |  |  | 338,598 |  |  | 352,170 | 338,598
Maui Electric | Reportable Legal Entities | Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance |  |  | 357,036 |  |  | 343,260 | 357,036 | 343,260
Net income for common stock | (4,414) |  |  | 5,618 |  |  | 5,076 | 18,481
Other comprehensive loss, net of taxes | (8) |  |  | (1) |  |  | (23) | 0
Common stock dividends |  |  |  |  |  |  | (11,025) | (11,400)
Ending balance | 351,064 |  |  | 350,341 |  |  | 351,064 | 350,341
Other subsidiary | Reportable Legal Entities | Hawaiian Electric Consolidated |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |
Beginning balance |  |  | $ 77 |  |  | $ 77 | 77 | 77
Net income for common stock | 0 |  |  | 0 |  |  | 0 | 0
Other comprehensive loss, net of taxes | 0 |  |  | 0 |  |  | 0 | 0
Ending balance | $ 77 |  |  | $ 77 |  |  | $ 77 | $ 77

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