Condensed Consolidated Statements of Comprehensive Income (unaudited) - HECO (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax	$ 1,943	$ 985	$ 3,549	$ 5,155
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	(1,839)	(971)	(3,320)	(5,002)
Hawaiian Electric Company, Inc. and Subsidiaries
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax	1,877	1,007	3,393	5,062
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	$ (1,839)	$ (971)	$ (3,320)	$ (5,002)