v3.26.3
ASSETS HELD FOR SALE (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2026
Sep. 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 2,514  
Utility plant in service 164,692  
Accumulated provision for depreciation (48,248)  
Construction work in progress 3,262  
Regulatory assets 9,844  
Total assets held for sale [1] 132,064  
Current regulatory liabilities 1,031  
Regulatory liabilities 8,518  
Total liabilities held for sale [1] $ 9,549  
[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 September 30, 2026, as the sale is expected to be completed within 12 months.