Debt - Schedule of Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Carrying Amount [Member] | Senior Secured Credit Facilities [Member]
Financial liabilities:
Credit facility	$ 4,268.6	$ 4,722.7
Carrying Amount [Member] | 5.5% Senior Notes due 2027 [Member]
Financial liabilities:
Long-Term Debt, Gross	1,998.1	1,997.3
Carrying Amount [Member] | 6.5% Senior Notes due 2032 [Member]
Financial liabilities:
Long-Term Debt, Gross	742.9	0.0
Fair Value [Member] | Senior Secured Credit Facilities [Member]
Financial liabilities:
Credit facility	4,315.6	4,774.4
Fair Value [Member] | 5.5% Senior Notes due 2027 [Member]
Financial liabilities:
Credit facility	1,984.2	1,974.0
Fair Value [Member] | 6.5% Senior Notes due 2032 [Member]
Financial liabilities:
Credit facility	$ 758.0	$ 0.0