v3.26.1
ASSETS HELD FOR SALE (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 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 936  
Utility plant in service 160,506  
Accumulated provision for depreciation (48,779)  
Construction work in progress 1,063  
Regulatory assets 10,756  
Total assets held for sale [1] 124,482  
Current regulatory liabilities 297  
Regulatory liabilities 8,480  
Total liabilities held for sale [1] $ 8,777  
[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 March 31, 2026, as the sale is expected to be completed within 12 months.