Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income for common stock	$ 38,661	$ 44,128	$ 72,854	$ 76,480
Net unrealized gains on available-for-sale investment securities:
Net unrealized gains on available-for-sale investment securities arising during the period, net of taxes	2,021	2,916	2,244	10,344
Reclassification adjustment for net realized gains included in net income, net of taxes	0	(360)	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	(745)	0	257
Reclassification adjustment to net income, net of tax benefits	0	0	454	54
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	3,930	3,698	7,851	7,236
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(3,581)	(3,401)	(7,194)	(6,623)
Other comprehensive income, net of taxes	2,370	2,108	3,355	10,908
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	41,031	46,236	76,209	87,388
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	25,644	35,857	47,109	61,224
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	(745)	0	257
Reclassification adjustment to net income, net of tax benefits	0	0	454	0
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	3,621	3,391	7,239	6,627
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes	(3,581)	(3,401)	(7,194)	(6,623)
Other comprehensive income, net of taxes	40	(755)	499	261
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	$ 25,684	$ 35,102	$ 47,608	$ 61,485