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Intangible Assets - Major Classes of Amortizable Intangible Assets (Detail) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, net $ 4,389.4 $ 4,633.3
Expiration Lists [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 8,341.8 8,222.8
Accumulated amortization (4,025.8) (3,733.2)
Amortizable intangible assets, net 4,316.0 4,489.6
Non-Compete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 103.3 112.2
Accumulated amortization (79.9) (74.9)
Amortizable intangible assets, net 23.4 37.3
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 119.7 171.8
Accumulated amortization (69.7) (65.4)
Amortizable intangible assets, net $ 50.0 $ 106.4