XML 106 R43.htm IDEA: XBRL DOCUMENT v3.25.3
Basis of presentation (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2024
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Selling, general and administrative expense   $ (101,762) $ (101,211) $ (325,696) $ (308,780)
Electric fuel and purchased power   $ 41,098 32,576 $ 119,737 108,991
Revision of Prior Period, Error Correction, Adjustment          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Selling, general and administrative expense     7,300   21,400
Electric fuel and purchased power     $ 7,300   $ 21,400
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Everus          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Stock split, conversion ratio 0.25