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Intangible Assets - Major Classes of Amortizable Intangible Assets (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]    
Total $ 5,131.6 $ 4,530.1
Expiration Lists    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 9,877.6 8,763.7
Accumulated amortization (4,828.7) (4,312.7)
Total 5,048.9 4,451.0
Non-Compete Agreements    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 135.0 117.7
Accumulated amortization (95.4) (85.4)
Total 39.6 32.3
Trade Names    
Finite-Lived Intangible Assets [Line Items]    
Amortizable intangible assets, gross 122.6 120.0
Accumulated amortization (79.5) (73.2)
Total $ 43.1 $ 46.8