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Maui windstorm and wildfires - Utilities Charged (Details) - Natural Disasters and Other Casualty Events - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Maui Windstorm and Wildfires |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | $ 16,933 | $ 30,227
Insurance recoveries | (6,722) | (12,577)
Deferral treatment approved by the PUC | (5,683) | (7,898)
Total Maui windstorm and wildfires related expenses, net of insurance recoveries and approved deferral treatment | 4,528 | 9,752
Legal expenses |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | 8,850 | 14,944
Other expense |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | 8,083 | 15,283
Hawaiian Electric Company, Inc. and Subsidiaries | Maui Windstorm and Wildfires |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | 11,296 | 24,567
Insurance recoveries | (3,064) | (9,969)
Deferral treatment approved by the PUC | (5,683) | (7,898)
Total Maui windstorm and wildfires related expenses, net of insurance recoveries and approved deferral treatment | 2,549 | 6,700
Income related to discontinued operations |  | 100
Hawaiian Electric Company, Inc. and Subsidiaries | Legal expenses |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | 3,849 | 10,735
Hawaiian Electric Company, Inc. and Subsidiaries | Other expense |  |
Public Utilities, General Disclosures [Line Items] |  |
Total Maui windstorm and wildfires related expenses | $ 7,447 | $ 13,832

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