Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income for common stock	$ 60,073	$ 127,142	$ 132,927	$ 203,622
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 taxes	208	(2,147)	2,452	8,197
Reclassification adjustment for net realized gains included in net income, net of taxes	0	0	0	(360)
Derivatives qualifying as cash flow hedges:
Effective portion of foreign currency hedge net unrealized gains (losses) arising during the period, net of (taxes) benefits	0	321	0	578
Reclassification adjustment to net income, net of tax benefits	0	(173)	454	(119)
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	3,942	3,641	11,793	10,877
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(3,596)	(3,311)	(10,790)	(9,934)
Other comprehensive income (loss), net of taxes	554	(1,669)	3,909	9,239
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	60,627	125,473	136,836	212,861
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	47,487	46,974	94,596	108,198
Derivatives qualifying as cash flow hedges:
Effective portion of foreign currency hedge net unrealized gains (losses) arising during the period, net of (taxes) benefits	0	321	0	578
Reclassification adjustment to net income, net of tax benefits	0	(173)	454	(173)
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	3,618	3,314	10,857	9,941
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(3,596)	(3,311)	(10,790)	(9,934)
Other comprehensive income (loss), net of taxes	22	151	521	412
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	$ 47,509	$ 47,125	$ 95,117	$ 108,610