v3.26.3
Derivatives - Gross Assets and Liabilities Position (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Aug. 11, 2026
USD ($)
Dec. 31, 2025
USD ($)
Derivative [Line Items]        
Gross asset position $ 0.9 $ 0.9   $ 3.3
Gross liability position $ 0.7 $ 0.7   $ 2.7
Interest Rate Swap        
Derivative [Line Items]        
Number of Interest Rate Derivatives Held 0 0   0
Treasury Lock | Not Designated as Hedging Instrument        
Derivative [Line Items]        
Treasury lock derivative, notional amount     $ 1,000.0  
Treasury Lock | Not Designated as Hedging Instrument | Location, Statement of Income, Balance [Axis]: us-gaap:InterestIncomeExpenseNonoperatingNet        
Derivative [Line Items]        
Treasury lock derivative, gain on settlement $ 2.9 $ 2.9    
Foreign currency derivatives        
Derivative [Line Items]        
Treasury lock derivative, notional amount $ 426.1 $ 426.1   $ 433.3
Natural gas derivatives        
Derivative [Line Items]        
Derivative, Nonmonetary Notional Amount 0.0 0.0   0.9