Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Total revenues	$ 608,945	$ 715,485	$ 1,286,131	$ 1,377,100
Expenses
Total expenses	537,389	642,851	1,154,873	1,226,529
Operating income (loss)
Total operating income	71,556	72,634	131,258	150,571
Retirement defined benefits expense—other than service costs	(934)	(761)	(1,868)	(1,524)
Interest expense, net—other than on deposit liabilities and other bank borrowings	(22,613)	(23,533)	(44,388)	(46,656)
Allowance for borrowed funds used during construction	752	1,179	1,440	2,257
Allowance for equity funds used during construction	2,194	3,175	4,209	6,085
Gain on sale of investment securities, net	9,275	0	9,275	0
Income before income taxes	60,230	52,694	99,926	110,733
Income taxes	10,870	9,709	16,673	21,587
Net income	49,360	42,985	83,253	89,146
Preferred stock dividends of subsidiaries	473	473	946	946
Net income for common stock	$ 48,887	$ 42,512	$ 82,307	$ 88,200
Basic earnings per common share (in dollars per share)	$ 0.45	$ 0.39	$ 0.75	$ 0.81
Diluted earnings per common share (in dollars per share)	$ 0.45	$ 0.39	$ 0.75	$ 0.81
Weighted-average number of common shares outstanding (in shares)	109,146	108,938	109,098	108,925
Net effect of potentially dilutive shares (in shares)	159	317	276	399
Weighted-average shares assuming dilution (in shares)	109,305	109,255	109,374	109,324
Hawaiian Electric Company, Inc. and Subsidiaries
Revenues
Total revenues	$ 534,215	$ 633,784	$ 1,131,657	$ 1,212,279
Expenses
Fuel oil	112,451	181,620	285,672	342,229
Purchased power	136,838	162,854	276,654	297,299
Other operation and maintenance	110,041	119,260	237,588	237,390
Depreciation	55,696	53,913	111,546	107,860
Taxes, other than income taxes	51,388	60,443	108,438	115,247
Total expenses	466,414	578,090	1,019,898	1,100,025
Operating income (loss)
Total operating income	67,801	55,694	111,759	112,254
Retirement defined benefits expense—other than service costs	(382)	(701)	(763)	(1,404)
Allowance for borrowed funds used during construction	752	1,179	1,440	2,257
Allowance for equity funds used during construction	2,194	3,175	4,209	6,085
Interest expense and other charges, net	(17,338)	(18,530)	(33,932)	(36,516)
Income before income taxes	53,027	40,817	82,713	82,676
Income taxes	10,199	7,744	15,481	16,978
Net income	42,828	33,073	67,232	65,698
Preferred stock dividends of subsidiaries	229	229	458	458
Net income attributable to Hawaiian Electric	42,599	32,844	66,774	65,240
Preferred stock dividends of Hawaiian Electric	270	270	540	540
Net income for common stock	42,329	32,574	66,234	64,700
Electric utility
Revenues
Total revenues	534,215	633,784	1,131,657	1,212,279
Expenses
Total expenses	466,414	578,090	1,019,898	1,100,025
Operating income (loss)
Total operating income	67,801	55,694	111,759	112,254
Income before income taxes	53,027	40,817	82,713	82,676
Income taxes	10,199	7,744	15,481	16,978
Net income	42,828	33,073	67,232	65,698
Preferred stock dividends of subsidiaries	499	499	998	998
Net income for common stock	42,329	32,574	66,234	64,700
Bank
Revenues
Total revenues	74,714	81,687	154,452	164,739
Expenses
Total expenses	66,221	60,435	126,556	117,365
Operating income (loss)
Total operating income	8,493	21,252	27,896	47,374
Income before income taxes	17,334	21,292	36,303	47,454
Income taxes	3,320	4,276	6,528	9,599
Net income	14,014	17,016	29,775	37,855
Preferred stock dividends of subsidiaries	0	0	0	0
Net income for common stock	14,014	17,016	29,775	37,855
Other
Revenues
Total revenues	16	14	22	82
Expenses
Total expenses	4,754	4,326	8,419	9,139
Operating income (loss)
Total operating income	(4,738)	(4,312)	(8,397)	(9,057)
Income before income taxes	(10,131)	(9,415)	(19,090)	(19,397)
Income taxes	(2,649)	(2,311)	(5,336)	(4,990)
Net income	(7,482)	(7,104)	(13,754)	(14,407)
Preferred stock dividends of subsidiaries	(26)	(26)	(52)	(52)
Net income for common stock	$ (7,456)	$ (7,078)	$ (13,702)	$ (14,355)