INCOME TAXES: Supplemental Disclosures (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Income Tax Expense [Line Items]
Cash (refunded) paid for income taxes	$ (6,073)
Cash paid to IDACORP related to income taxes		$ (480)
Idaho Power Company
Income Tax Expense [Line Items]
Cash (refunded) paid for income taxes	$ (2,442)
Cash paid to IDACORP related to income taxes		$ (15,627)

Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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