v3.26.1
Fair Value Measurements (Tables) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets, fair value measurements [Abstract]    
Investments $ 17.0 $ 17.4
Total asset recurring fair value measurements 17.0 17.4
Liabilities, fair value measurements [Abstract]    
Deferred compensation and other retirement plans 17.0 18.1
Total liability recurring fair value measurements 17.0 18.1
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]    
Total debt 2,037.5 2,021.1
Total financial instruments not carried at fair value 2,037.5 2,021.1
Quoted prices in active markets for identical assets (Level 1)    
Assets, fair value measurements [Abstract]    
Investments 0.0 0.0
Total asset recurring fair value measurements 0.0 0.0
Liabilities, fair value measurements [Abstract]    
Deferred compensation and other retirement plans 0.0 0.0
Total liability recurring fair value measurements 0.0 0.0
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]    
Total debt 0.0 0.0
Total financial instruments not carried at fair value 0.0 0.0
Significant other observable inputs (Level 2)    
Assets, fair value measurements [Abstract]    
Investments 17.0 17.4
Total asset recurring fair value measurements 17.0 17.4
Liabilities, fair value measurements [Abstract]    
Deferred compensation and other retirement plans 17.0 18.1
Total liability recurring fair value measurements 17.0 18.1
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]    
Total debt 2,037.5 2,021.1
Total financial instruments not carried at fair value 2,037.5 2,021.1
Significant unobservable inputs (Level 3)    
Assets, fair value measurements [Abstract]    
Investments 0.0 0.0
Total asset recurring fair value measurements 0.0 0.0
Liabilities, fair value measurements [Abstract]    
Deferred compensation and other retirement plans 0.0 0.0
Total liability recurring fair value measurements 0.0 0.0
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]    
Total debt 0.0 0.0
Total financial instruments not carried at fair value $ 0.0 $ 0.0