Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net income for common stock	$ 65,900	$ 60,073	$ 152,201	$ 132,927
Net unrealized gains (losses) on available-for-sale investment securities:
Net unrealized gain (losses) on available-for-sale investment securities arising during the period, net of tax benefits (taxes)	(5,123)	208	(22,768)	2,452
Derivatives qualifying as cash flow hedges:
Reclassification adjustment to net income, net of tax benefits	0	0	0	454
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits	5,259	3,942	15,755	11,793
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(4,725)	(3,596)	(14,174)	(10,790)
Other comprehensive income (loss), net of taxes	(4,589)	554	(21,187)	3,909
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	61,311	60,627	131,014	136,836
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	49,712	47,487	108,356	94,596
Derivatives qualifying as cash flow hedges:
Reclassification adjustment to net income, net of tax benefits	0	0	0	454
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits	4,753	3,618	14,259	10,857
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(4,725)	(3,596)	(14,174)	(10,790)
Other comprehensive income (loss), net of taxes	28	22	85	521
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	$ 49,740	$ 47,509	$ 108,441	$ 95,117