Shareholders' equity (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

Changes in the balances of each component of accumulated other comprehensive income/(loss) (AOCI) were as follows:

	HEI Consolidated								Hawaiian Electric Consolidated
(in thousands)	Net unrealized gains (losses) on securities		Unrealized gains (losses) on derivatives		Retirement benefit plans		AOCI		AOCI-Retirement benefit plans
Balance, December 31, 2023	$	(282,963)	$	1,638	$	(8,025)	$	(289,350)	$	2,849
Current period other comprehensive income (loss)	(8,901)		670		24		(8,207)		(95)
Balance, June 30, 2024	$	(291,864)	$	2,308	$	(8,001)	$	(297,557)	$	2,754
Balance, December 31, 2022	$	(328,904)	$	1,991	$	(9,115)	$	(336,028)	$	2,861
Current period other comprehensive income (loss)	12,987		(245)		137		12,879		(89)
Balance, June 30, 2023	$	(315,917)	$	1,746	$	(8,978)	$	(323,149)	$	2,772

Schedule of Reclassification out of AOCI

Reclassifications out of AOCI were as follows:

	Amount reclassified from AOCI								Affected line item in the  Statements of Income / Balance Sheets
	Three months ended June 30				Six months ended June 30
(in thousands)	2024		2023		2024		2023
HEI consolidated
Amortization of unrealized holding losses on held-to-maturity securities	$	3,288	$	3,689	$	6,374	$	7,366	Bank revenues
Net realized gains on derivatives qualifying as cash flow hedges	(51)		(48)		(99)		(96)		Interest expense
Retirement benefit plans:
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost	(445)		(357)		(894)		(714)		See Note 9 for additional details
Impact of D&Os of the PUC included in regulatory assets	459		426		918		851		See Note 9 for additional details
Total reclassifications	$	3,251	$	3,710	$	6,299	$	7,407
Hawaiian Electric consolidated
Retirement benefit plans:
Amortization of prior service credit and net gains recognized during the period in net periodic benefit cost	$	(505)	$	(470)	$	(1,013)	$	(940)	See Note 9 for additional details
Impact of D&Os of the PUC included in regulatory assets	459		426		918		851		See Note 9 for additional details
Total reclassifications	$	(46)	$	(44)	$	(95)	$	(89)