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Goodwill and Identifiable Assets Acquired Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Intangible assets subject to amortization:    
Gross Carrying Amount $ 525.3 $ 674.6
Accumulated Amortization 300.2 377.8
Net Carrying Amount 225.1 296.8
Intangible assets not subject to amortization:    
Trademarks, Carrying Amount 272.8 272.8
Gross Carrying Amount 798.1 947.4
Net Carrying Amount 497.9 569.6
Contractual customer relationships    
Intangible assets subject to amortization:    
Gross Carrying Amount 496.0 589.3
Accumulated Amortization 282.0 315.7
Net Carrying Amount $ 214.0 273.6
Contractual customer relationships | Minimum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 7 years  
Contractual customer relationships | Maximum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 13 years  
Backlog    
Intangible assets subject to amortization:    
Gross Carrying Amount $ 0.0 44.1
Accumulated Amortization 0.0 36.5
Net Carrying Amount $ 0.0 7.6
Backlog | Minimum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 1 year  
Backlog | Maximum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 3 years  
Non-compete agreements    
Intangible assets subject to amortization:    
Gross Carrying Amount $ 29.3 41.2
Accumulated Amortization 18.2 25.6
Net Carrying Amount $ 11.1 $ 15.6
Non-compete agreements | Minimum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 2 years  
Non-compete agreements | Maximum [Member]    
Intangible Assets [Line Items]    
Estimated Useful Life (in years) 7 years