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v3.25.4

RELATED PARTY TRANSACTIONS: Related Party Transactions Level 4 (Details) - Idaho Power Company - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
IDACORP |  |  |
Related Party Transaction |  |  |
Revenues | $ 1.5 | $ 1.1 | $ 1.1
Subsidiary of Common Parent [Member] |  |  |
Related Party Transaction |  |  |
Accounts Payable | 3.3 | 3.2 |
Ida-West |  |  |
Related Party Transaction |  |  |
Costs and Expenses, Related Party | $ 9.5 | $ 9.6 | $ 9.1

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