v3.26.3
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Accounts Receivable, Allowance for Credit Loss, Current $ 9.6      
Cash and cash equivalents 106.9 $ 82.9    
Accounts Receivable, Allowance for Credit Loss 9.6 8.8 $ 8.9 $ 6.1
Accounts Receivable, after Allowance for Credit Loss, Current 177.7 161.1    
Inventories 73.4 70.3    
Taxes applicable to subsequent years 37.4 150.4    
Regulatory assets, current 54.3 61.1    
Income Taxes Receivable, Current 21.3 24.2    
Prepayments and other current assets 22.7 9.1    
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization (691.7) (647.3)    
Regulatory assets, non-current 103.6 137.4    
Intangible assets, net of amortization 167.2 166.9    
Other Assets, Noncurrent 21.7 31.8    
Liabilities, Current 597.6 377.5    
Current portion of long-term debt 139.9 0.2    
Accounts payable 157.6 144.0    
Accrued taxes 159.7 145.7    
Accrued interest 22.8 19.6    
Contract with Customer, Liability, Current 20.9 8.8    
Regulatory liabilities, current 8.0 1.8    
Other current liabilities 88.7 57.4    
Long-term debt 1,659.7 1,798.1    
Deferred Tax Liabilities, Net 258.3 233.0    
Taxes payable 0.4 150.9    
Regulatory liabilities, non-current 206.4 189.5    
Pension, retiree and other benefits 9.3 16.5    
Other deferred credits 8.4 7.9    
Accumulated other comprehensive income 15.0 15.7    
Retained Earnings (Accumulated Deficit) (2,595.2) (2,652.1)    
Liabilities 2,740.1 2,773.4    
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 3,162.5 2,885.8    
Total liabilities and shareholder's equity $ 3,948.7 $ 3,781.0