v3.26.1
ASSETS HELD FOR SALE (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2027
Assets Held for Sale Disclosure [Line Items]    
Impairment of Long-Lived Assets to be Disposed of $ 0  
Forecast | Oregon jurisdiction    
Assets Held for Sale Disclosure [Line Items]    
Consideration   $ 154,000
Idaho Power Company | Assets Held for Sale [Table]    
Assets Held for Sale Disclosure [Line Items]    
Current regulatory assets 3,354  
Utility plant in service 161,672  
Accumulated provision for depreciation (48,502)  
Construction work in progress 4,969  
Regulatory assets 8,174  
Total assets held for sale [1] 129,667  
Current regulatory liabilities 1,306  
Regulatory liabilities 7,864  
Total liabilities held for sale [1] $ 9,170  
[1] Total assets held for sale and total liabilities held for sale are presented within current assets and current liabilities, respectively, on the condensed consolidated balance sheets as of June 30, 2026, as the sale is expected to be completed within 12 months.