v3.26.1
Shareholders' equity (Tables)
 6 Months Ended
Jun. 30, 2026
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) Changes in the balances of each component of accumulated other comprehensive income/(loss) (AOCI) were as follows:
HEI consolidated
Hawaiian Electric consolidated
 (in thousands) Unrealized gains (losses) on derivativesRetirement benefit plansAOCIAOCI-Retirement benefit plans
Balance, December 31, 2025$600 $2,738 $3,338 $2,640 
Current period other comprehensive loss(106)(43)(149)(94)
Balance, June 30, 2026$494 $2,695 $3,189 $2,546 
Balance, December 31, 2024$2,120 $1,341 $3,461 $2,786 
Current period other comprehensive loss(720)(46)(766)(94)
Balance, June 30, 2025$1,400 $1,295 $2,695 $2,692 
Schedule of Reclassification out of AOCI
Reclassifications out of AOCI were as follows:
Amount reclassified from AOCIAffected line item in the
 Statements of Income / Balance Sheets
Three months ended June 30Six months ended June 30
(in thousands)2026202520262025
HEI consolidated
Net realized gains on derivatives qualifying as cash flow hedges$(54)$(50)$(106)$(100)Interest expense
Retirement benefit plans:
Amortization of net gains recognized during the period in net periodic benefit cost(457)(508)(915)(1,013)
See Note 8 for additional details
Impact of D&Os of the PUC included in regulatory accounts436 484 872 967 
See Note 8 for additional details
Total reclassifications$(75)$(74)$(149)$(146)
Hawaiian Electric consolidated
Retirement benefit plans:
Amortization of net gains recognized during the period in net periodic benefit cost$(483)$(531)$(966)$(1,061)
See Note 8 for additional details
Impact of D&Os of the PUC included in regulatory accounts436 484 872 967 
See Note 8 for additional details
Total reclassifications$(47)$(47)$(94)$(94)