Debt - Schedule of Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Carrying Amount [Member] | Senior Secured Credit Facilities [Member]
Financial liabilities:
Credit facility	$ 4,722.7	$ 5,082.2
Carrying Amount [Member] | 5.5% Senior Notes due 2027 [Member]
Financial liabilities:
Long-Term Debt, Gross	1,997.3	1,996.6
Carrying Amount [Member] | Other Indebtedness [Member]
Financial liabilities:
Credit facility	0.0	0.8
Fair Value [Member] | Senior Secured Credit Facilities [Member]
Financial liabilities:
Credit facility	4,774.4	5,069.0
Fair Value [Member] | 5.5% Senior Notes due 2027 [Member]
Financial liabilities:
Credit facility	1,974.0	1,880.9
Fair Value [Member] | Other Indebtedness [Member]
Financial liabilities:
Credit facility	$ 0.0	$ 0.8