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Maui windstorm and wildfires (Tables)
 3 Months Ended
Mar. 31, 2025
Unusual or Infrequent Items, or Both [Abstract]  
Schedule of Windstorm and Wildfire Expenses
See table below for the incremental expenses related to the Maui windstorm and wildfires.
Three months ended March 31, 2025Three months ended March 31, 2024
(in thousands)
Electric utility
HEI Consolidated
Electric utility
HEI Consolidated2
Maui windstorm and wildfires related expenses:
Legal expenses$3,849 $8,850 $10,735 $14,944 
Other expense
7,447 8,083 13,832 15,283 
Total Maui windstorm and wildfires related expenses11,296 16,933 24,567 30,227 
Insurance recoveries
(3,064)(6,722)(9,969)(12,577)
Deferral treatment approved by the PUC1
(5,683)(5,683)(7,898)(7,898)
Total Maui windstorm and wildfires related expenses, net of insurance recoveries and approved deferral treatment$2,549 $4,528 $6,700 $9,752 
1    Related to the PUC’s order, received on December 27, 2023, approving deferred accounting treatment for the Utilities’ incremental non-labor expenses related to the August 2023 Maui windstorm and wildfires incurred through December 31, 2024. Pursuant to the PUC order received on February 12, 2025, deferral accounting treatment limited to insurance premiums and outside services and legal costs associated with the asset-based lending facility credit agreement incurred in 2025 was granted. Applicable amounts were reclassified to a regulatory asset.
2    Excludes income related to discontinued operations amounting to $0.1 million for the three months ended March 31, 2024.