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Condensed Consolidated Statements of Changes in Shareholders' Equity and Common Stock Equity (unaudited) - USD ($) $ in Thousands | Total | Hawaiian Electric Company, Inc. and Subsidiaries | Common stock | Common stock Hawaiian Electric Company, Inc. and Subsidiaries | Premium on capital stock Hawaiian Electric Company, Inc. and Subsidiaries | Retained Earnings | Retained Earnings Hawaiian Electric Company, Inc. and Subsidiaries | Accumulated other comprehensive income (loss) | Accumulated other comprehensive income (loss) Hawaiian Electric Company, Inc. and Subsidiaries
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2018 | $ 2,162,280 | $ 1,957,641 | $ 1,669,267 | $ 111,696 | $ 681,305 | $ 543,623 | $ 1,164,541 | $ (50,610) | $ 99
Beginning Balance (in shares) at Dec. 31, 2018 |  |  | 108,879,000 | 16,751,000 |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 45,688 | 32,126 |  |  |  | 45,688 | 32,126 |  |
Other comprehensive income (loss), net of tax (benefits) | 9,241 | 24 |  |  |  |  |  | 9,241 | 24
Share-based expenses and other, net (in shares) |  |  | 58,000 |  |  |  |  |  |
Share-based expenses and other, net | 1,166 |  | $ 1,166 |  |  |  |  |  |
Common stock dividends | (34,860) | (25,313) |  |  |  | (34,860) | (25,313) |  |
Ending Balance at Mar. 31, 2019 | $ 2,183,515 | 1,964,478 | $ 1,670,433 | $ 111,696 | 681,305 | 554,451 | 1,171,354 | (41,369) | 123
Ending Balance (in shares) at Mar. 31, 2019 |  |  | 108,937,000 | 16,751,000 |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Common stock dividends (in dollars per share) | $ 0.32 |  |  |  |  |  |  |  |
Impact of adoption of ASU No. 2016-13 | $ (15,372) |  |  |  |  | (15,372) |  |  |
Balance, January 1, 2020 after adoption of ASU No. 2016-13 | 2,264,888 |  | $ 1,678,257 |  |  | 606,670 |  | (20,039) |
Beginning Balance at Dec. 31, 2019 | $ 2,280,260 | 2,047,352 | $ 1,678,257 | $ 113,678 | 714,824 | 622,042 | 1,220,129 | (20,039) | (1,279)
Beginning Balance (in shares) at Dec. 31, 2019 | 108,973,328 |  | 108,973,000 | 17,048,000 |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | $ 33,420 | 23,905 |  |  |  | 33,420 | 23,905 |  |
Other comprehensive income (loss), net of tax (benefits) | 18,212 | 26 |  |  |  |  |  | 18,212 | 26
Share-based expenses and other, net (in shares) |  |  | 172,000 |  |  |  |  |  |
Share-based expenses and other, net | (3,996) |  | $ (3,996) |  |  |  |  |  |
Common stock dividends | (36,019) | (26,784) |  |  |  | (36,019) | (26,784) |  |
Ending Balance at Mar. 31, 2020 | $ 2,276,505 | $ 2,044,499 | $ 1,674,261 | $ 113,678 | $ 714,824 | $ 604,071 | $ 1,217,250 | $ (1,827) | $ (1,253)
Ending Balance (in shares) at Mar. 31, 2020 | 109,145,492 |  | 109,145,000 | 17,048,000 |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Common stock dividends (in dollars per share) | $ 0.33 |  |  |  |  |  |  |  |

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