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Goodwill and Other Intangible Assets - Gross Carrying Amount and Accumulated Amortization (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 130.3 $ 113.0
Accumulated Amortization (40.0) (31.9)
Net Carrying Value 90.3 81.1
Indefinite-lived intangible assets 82.7 72.4
Total intangible assets, gross carrying value 213.0 185.4
Total intangible assets, net $ 173.0 153.5
Finite-lived intangible asset, useful life 12 years  
Trade names    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets $ 82.7 72.4
Customer relationships    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 125.5 108.6
Accumulated Amortization (37.3) (29.6)
Net Carrying Value $ 88.2 79.0
Finite-lived intangible asset, useful life 12 years  
Other    
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 4.8 4.4
Accumulated Amortization (2.7) (2.3)
Net Carrying Value $ 2.1 $ 2.1
Finite-lived intangible asset, useful life 7 years