v3.25.1
INCOME TAXES: Level 4 (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Income Tax Expense [Line Items]    
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount $ 11,809 $ 10,972
Excess deferred income tax reversal (2,431) (2,512)
Other [1] (2,594) (1,506)
Income tax expense before additional ADITC amortization 6,784 6,954
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount (19,250) (12,500)
Income Tax Expense $ (12,466) $ (5,546)
Effective tax rate (26.40%) (13.00%)
Idaho Power Company    
Income Tax Expense [Line Items]    
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount $ 11,381 $ 10,880
Excess deferred income tax reversal (2,431) (2,512)
Other [1] (2,358) (899)
Income tax expense before additional ADITC amortization 6,592 7,469
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount (19,250) (12,500)
Income Tax Expense $ (12,658) $ (5,031)
Effective tax rate (27.80%) (11.90%)
[1] "Other" primarily consists of the net tax effect of Idaho Power's regulatory flow-through tax adjustments.