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Goodwill and Other Intangible Assets, Net - Other Intangible Assets, Net (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Gross Intangible Assets    
Beginning balance $ 685.3  
Acquisitions 4.2  
Adjustments and Other 0.0  
Ending balance 689.5  
Accumulated Amortization    
Beginning balance (189.1)  
Additions Charged to Expense (17.8)  
Adjustments and Other 0.0  
Ending balance (206.9)  
Other Intangible Assets, Net 482.6 $ 496.2
Customer relationships    
Gross Intangible Assets    
Beginning balance 631.7  
Acquisitions 3.3  
Adjustments and Other 0.0  
Ending balance 635.0  
Accumulated Amortization    
Beginning balance (165.7)  
Additions Charged to Expense (15.3)  
Adjustments and Other 0.0  
Ending balance (181.0)  
Other Intangible Assets, Net 454.0  
Non-compete agreements    
Gross Intangible Assets    
Beginning balance 30.4  
Acquisitions 0.9  
Adjustments and Other 0.0  
Ending balance 31.3  
Accumulated Amortization    
Beginning balance (15.7)  
Additions Charged to Expense (1.5)  
Adjustments and Other 0.0  
Ending balance (17.2)  
Other Intangible Assets, Net 14.1  
Other intangible assets    
Gross Intangible Assets    
Beginning balance 23.2  
Acquisitions 0.0  
Adjustments and Other 0.0  
Ending balance 23.2  
Accumulated Amortization    
Beginning balance (7.7)  
Additions Charged to Expense (1.0)  
Adjustments and Other 0.0  
Ending balance (8.7)  
Other Intangible Assets, Net $ 14.5