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Intangible Assets - Major Classes of Amortizable Intangible Assets (Detail) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
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Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, net | $ 3,404.1 | $ 3,372.1
Expiration Lists [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, gross | 6,620.3 | 6,472.3
Accumulated amortization | (3,297.7) | (3,178.5)
Amortizable intangible assets, net | 3,322.6 | 3,293.8
Non-Compete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, gross | 98.1 | 91.3
Accumulated amortization | (70.3) | (67.5)
Amortizable intangible assets, net | 27.8 | 23.8
Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, gross | 110.1 | 108.5
Accumulated amortization | (56.4) | (54.0)
Amortizable intangible assets, net | $ 53.7 | $ 54.5

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