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v3.25.1

Fair value measurements (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financial assets |  |
Derivative asset, statement of financial position | Other | Other
Carrying or notional amount |  |
Financial assets |  |
Derivative assets | $ 28,892 | $ 29,312
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 2,617,963 | 2,799,558
Carrying or notional amount | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 1,049,070 | 1,162,259
Carrying or notional amount | Hawaiian Electric Company, Inc. and Subsidiaries |  |
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 1,809,424 | 1,901,214
Carrying or notional amount | Hawaiian Electric Company, Inc. and Subsidiaries | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 72,329 | 115,599
Estimated fair value |  |
Financial assets |  |
Derivative assets | 1,114 | 1,629
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 2,131,016 | 2,196,403
Estimated fair value | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 1,049,070 | 1,162,259
Estimated fair value | Hawaiian Electric Company, Inc. and Subsidiaries |  |
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 1,377,233 | 1,446,316
Estimated fair value | Hawaiian Electric Company, Inc. and Subsidiaries | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 72,329 | 115,599
Estimated fair value | Quoted prices in active markets for identical assets (Level 1) |  |
Financial assets |  |
Derivative assets | 0 | 0
Financial liabilities |  |
Short-term borrowings, net | 0 | 0
Long-term debt, net | 0 | 0
Estimated fair value | Quoted prices in active markets for identical assets (Level 1) | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 1,049,070 | 1,162,259
Estimated fair value | Quoted prices in active markets for identical assets (Level 1) | Hawaiian Electric Company, Inc. and Subsidiaries |  |
Financial liabilities |  |
Short-term borrowings, net | 0 | 0
Long-term debt, net | 0 | 0
Estimated fair value | Quoted prices in active markets for identical assets (Level 1) | Hawaiian Electric Company, Inc. and Subsidiaries | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 72,329 | 115,599
Estimated fair value | Significant other observable inputs (Level 2) |  |
Financial assets |  |
Derivative assets | 1,114 | 1,629
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 2,131,016 | 2,196,403
Estimated fair value | Significant other observable inputs (Level 2) | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | 0 | 0
Estimated fair value | Significant other observable inputs (Level 2) | Hawaiian Electric Company, Inc. and Subsidiaries |  |
Financial liabilities |  |
Short-term borrowings, net | 48,738 | 48,623
Long-term debt, net | 1,377,233 | 1,446,316
Estimated fair value | Significant other observable inputs (Level 2) | Hawaiian Electric Company, Inc. and Subsidiaries | Money Market Funds |  |
Financial assets |  |
Money market mutual funds | $ 0 | $ 0

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