Condensed Consolidated Statements of Comprehensive Income (unaudited) - HECO (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, tax	$ 1,562	$ 2,084
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	(1,500)	(2,015)
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	1,518	2,027
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	$ (1,500)	$ (2,015)