Debt and Interest Expense - Summary of Maturity Profile of Total Debt, Excluding Deferred Financing Costs and Discounts (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt (excluding interest)	$ 2,594.0	$ 1,934.0
2022	20.0
2023	30.0
2024	444.0
2026	800.0
2027 and thereafter	1,300.0
Fixed-Rate Senior Notes
Debt Instrument [Line Items]
Total debt (excluding interest)	2,100.0	1,350.0
2026	800.0
2027 and thereafter	1,300.0
Term Loan Facility
Debt Instrument [Line Items]
Total debt (excluding interest)	390.0
2022	20.0
2023	30.0
2024	340.0
Revolving Credit Facility
Debt Instrument [Line Items]
Total debt (excluding interest)	104.0	$ 184.0
2024	$ 104.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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