Condensed Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net unrealized gains (losses) on securities arising during the period, (taxes) benefits	$ (7,120)	$ (3,455)
Unrealized interest rate hedging losses arising during period, tax benefits	619	140
Amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax benefits	1,986	870
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax expense	1,789	797
Hawaiian Electric Company, Inc. and Subsidiaries
Amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax benefits	1,798	805
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax expense	$ 1,789	$ 797