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Electric utility segment - Consolidating Statements of Changes in Common Stock Equity (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | $ 2,337,502 | $ 2,280,260 | $ 2,162,280
Net income for common stock | 246,166 | 197,824 | 217,882
Other comprehensive income (loss), net of taxes (benefits) | (51,269) | 18,775 | 30,571
Common stock dividends | (148,643) | (144,096) | (139,463)
Ending balance | 2,390,884 | 2,337,502 | 2,280,260
Hawaiian Electric (parent only) |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 2,337,502 |  |
Ending balance | 2,390,884 | 2,337,502 |
Eliminations And Reconciling Items |  |  |
Increase (decrease) in stockholders' equity |  |  |
Dissolution of subsidiary |  | 24 |
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 2,141,918 | 2,047,352 | 1,957,641
Net income for common stock | 177,642 | 169,340 | 156,840
Other comprehensive income (loss), net of taxes (benefits) | (361) | (1,640) | (1,378)
Issuance of common stock, net of expenses | 54,400 | 34,000 | 35,501
Common stock dividends | (111,700) | (107,134) | (101,252)
Dissolution of subsidiary |  | 0 |
Ending balance | 2,261,899 | 2,141,918 | 2,047,352
Hawaiian Electric Company, Inc. and Subsidiaries | Reportable Legal Entities | Hawaiian Electric (parent only) |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 2,141,918 | 2,047,352 | 1,957,641
Net income for common stock | 177,642 | 169,340 | 156,840
Other comprehensive income (loss), net of taxes (benefits) | (361) | (1,640) | (1,378)
Issuance of common stock, net of expenses | 54,400 | 34,000 | 35,501
Common stock dividends | (111,700) | (107,134) | (101,252)
Ending balance | 2,261,899 | 2,141,918 | 2,047,352
Hawaiian Electric Company, Inc. and Subsidiaries | Reportable Legal Entities | Hawaii Electric Light |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 317,451 | 298,998 | 295,874
Net income for common stock | 21,180 | 27,493 | 20,817
Other comprehensive income (loss), net of taxes (benefits) | 66 | (220) | (12)
Issuance of common stock, net of expenses | 8,803 | 7,500 | (1)
Common stock dividends | (14,600) | (16,320) | (17,680)
Ending balance | 332,900 | 317,451 | 298,998
Hawaiian Electric Company, Inc. and Subsidiaries | Reportable Legal Entities | Maui Electric |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 309,363 | 292,870 | 280,863
Net income for common stock | 24,173 | 20,011 | 22,350
Other comprehensive income (loss), net of taxes (benefits) | 227 | (134) | (174)
Issuance of common stock, net of expenses | 24,597 | 11,000 | 4,899
Common stock dividends | (15,100) | (14,384) | (15,068)
Ending balance | 343,260 | 309,363 | 292,870
Hawaiian Electric Company, Inc. and Subsidiaries | Reportable Legal Entities | Other subsidiaries |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | 77 | 101 | 101
Dissolution of subsidiary |  | (24) |
Ending balance | 77 | 77 | 101
Hawaiian Electric Company, Inc. and Subsidiaries | Consolidating adjustments |  |  |
Increase (decrease) in stockholders' equity |  |  |
Beginning balance | (626,891) | (591,969) | (576,838)
Net income for common stock | (45,353) | (47,504) | (43,167)
Other comprehensive income (loss), net of taxes (benefits) | (293) | 354 | 186
Issuance of common stock, net of expenses | (33,400) | (18,500) | (4,898)
Common stock dividends | 29,700 | 30,704 | 32,748
Ending balance | $ (676,237) | $ (626,891) | $ (591,969)

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