Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues
Revenues	$ 785,068	$ 642,946
Expenses
Total expenses	685,792	544,915
Operating income (loss)
Total operating income	99,276	98,031
Retirement defined benefits credit—other than service costs	1,243	2,435
Interest expense, net—other than on deposit liabilities and other bank borrowings	(24,349)	(23,736)
Allowance for borrowed funds used during construction	778	747
Allowance for equity funds used during construction	2,409	2,191
Gain on sales of investment securities, net and equity-method investment	8,123	528
Income before income taxes	87,480	80,196
Income taxes	17,840	15,365
Net income attributable to Hawaiian Electric	69,640	64,831
Preferred stock dividends of subsidiaries	473	473
Net income for common stock	$ 69,167	$ 64,358
Basic earnings per common share (in dollars per share)	$ 0.63	$ 0.59
Diluted earnings per common share (in dollars per share)	$ 0.63	$ 0.59
Weighted-average number of common shares outstanding (in shares)	109,361	109,221
Net effect of potentially dilutive shares (in shares)	273	271
Weighted-average shares assuming dilution (in shares)	109,634	109,492
Electric utility
Revenues
Revenues	$ 708,792	$ 564,864
Expenses
Total expenses	635,197	495,750
Operating income (loss)
Total operating income	73,595	69,114
Income before income taxes	59,446	55,090
Income taxes	12,538	11,233
Net income attributable to Hawaiian Electric	46,908	43,857
Preferred stock dividends of subsidiaries	499	499
Net income for common stock	46,409	43,358
Bank
Revenues
Revenues	75,115	77,131
Expenses
Total expenses	45,085	41,835
Operating income (loss)
Total operating income	30,030	35,296
Income before income taxes	30,215	37,102
Income taxes	6,345	7,546
Net income attributable to Hawaiian Electric	23,870	29,556
Preferred stock dividends of subsidiaries	0	0
Net income for common stock	23,870	29,556
Other
Revenues
Revenues	1,161	951
Expenses
Total expenses	5,510	7,330
Operating income (loss)
Total operating income	(4,349)	(6,379)
Income before income taxes	(2,181)	(11,996)
Income taxes	(1,043)	(3,414)
Net income attributable to Hawaiian Electric	(1,138)	(8,582)
Preferred stock dividends of subsidiaries	(26)	(26)
Net income for common stock	$ (1,112)	$ (8,556)