Condensed Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net unrealized gains (losses) on available-for-sale investment securities arising during the period, tax	$ 356	$ 5,182	$ 7,476	$ 8,637
Reclassification adjustment for net realized gains included in net income, tax	(599)	0	(599)	0
Unrealized interest rate hedging losses arising during the period, tax	(69)	(380)	(688)	(520)
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax	1,981	871	3,967	1,741
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	(1,789)	(797)	(3,578)	(1,594)
Hawaiian Electric Company, Inc. and Subsidiaries
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax	1,798	805	3,596	1,610
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	$ (1,789)	$ (797)	$ (3,578)	$ (1,594)