Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income for common stock	$ 168,320	$ 161,516	$ 138,658
Net unrealized gains (losses) on available-for sale investment securities:
Net unrealized gains (losses) on available-for sale investment securities arising during the period, net of (taxes) benefits of $(3,856), $9,037 and ($631) for 2014, 2013 and 2012, respectively	5,840	(13,686)	956
Less: reclassification adjustment for net realized gains included in net income, net of taxes of $1,132, $488 and $53 for 2014, 2013 and 2012, respectively	(1,715)	(738)	(81)
Derivatives qualified as cash flow hedges:
Less: reclassification adjustment to net income, net of tax benefits of $150, $150 and $150 for 2014, 2013 and 2012, respectively	236	235	236
Retirement benefit plans:
Net gains (losses) arising during the period, net of (taxes) benefits	(234,166)	223,177	(99,159)
Less: amortization of transition obligation, prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits	11,344	23,280	15,291
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of (taxes) benefits	207,833	(222,595)	75,471
Other comprehensive income (loss), net of taxes	(10,628)	9,673	(7,286)
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	157,692	171,189	131,372
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	137,641	122,929	99,276
Retirement benefit plans:
Net gains (losses) arising during the period, net of (taxes) benefits	(218,608)	203,479	(90,082)
Less: amortization of transition obligation, prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits	10,212	20,694	13,673
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of (taxes) benefits	207,833	(222,595)	75,471
Other comprehensive income (loss), net of taxes	(563)	1,578	(938)
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	$ 137,078	$ 124,507	$ 98,338