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Condensed Consolidated Statements of Comprehensive Income (unaudited) - HECO (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 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	$ 44	$ 2,086	$ 1,606	$ 4,170
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	19	(2,016)	(1,481)	(4,031)
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	(2)	2,028	1,516	4,055
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax	$ 19	$ (2,016)	$ (1,481)	$ (4,031)