v3.26.1
Goodwill and Other Intangible Assets - Gross carrying amount, accumulated amortization and net book value of intangible assets other than goodwill (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Intangible asset balances by major asset class    
Intangible assets, gross (excluding goodwill) $ 172.4 $ 175.2
Finite-lived intangible assets, amortization amount (50.9) (50.1)
Intangible assets, book value 121.5 125.1
Indefinite-lived Intangible Assets    
Intangible asset balances by major asset class    
Intangible assets, gross (excluding goodwill) 108.4 110.5
Finite-lived intangible assets, amortization amount 0.0 0.0
Intangible assets, book value 108.4 110.5
Indefinite-lived Intangible Assets | Distribution Network    
Intangible asset balances by major asset class    
Indefinite-lived intangible assets, book value 14.7 15.0
Finite-lived intangible assets, amortization amount 0.0 0.0
Indefinite-lived Intangible Assets | Trademarks and Tradenames    
Intangible asset balances by major asset class    
Indefinite-lived intangible assets, book value 93.7 95.5
Finite-lived intangible assets, amortization amount 0.0 0.0
Finite-Lived Intangible Assets    
Intangible asset balances by major asset class    
Finite-lived intangible assets, carrying amount 64.0 64.7
Finite-lived intangible assets, amortization amount (50.9) (50.1)
Finite-lived intangible assets, book value 13.1 14.6
Finite-Lived Intangible Assets | Customer Relationships    
Intangible asset balances by major asset class    
Finite-lived intangible assets, carrying amount 27.8 28.0
Finite-lived intangible assets, amortization amount (15.3) (14.6)
Finite-lived intangible assets, book value 12.5 13.4
Finite-Lived Intangible Assets | Patents    
Intangible asset balances by major asset class    
Finite-lived intangible assets, carrying amount 29.8 30.3
Finite-lived intangible assets, amortization amount (29.5) (30.0)
Finite-lived intangible assets, book value 0.3 0.3
Finite-Lived Intangible Assets | Noncompetition Agreements    
Intangible asset balances by major asset class    
Finite-lived intangible assets, carrying amount 4.2 4.2
Finite-lived intangible assets, amortization amount (4.0) (3.6)
Finite-lived intangible assets, book value 0.2 0.6
Finite-Lived Intangible Assets | Trademarks and Tradenames    
Intangible asset balances by major asset class    
Finite-lived intangible assets, carrying amount 2.2 2.2
Finite-lived intangible assets, amortization amount (2.1) (1.9)
Finite-lived intangible assets, book value $ 0.1 $ 0.3