Balance Sheet Classification, Fair Value and Gross and Net Amounts of Derivative Financial Instruments (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Assets gross amount recognized in balance sheets	$ 6.8	$ 4.0
Less amounts not offset in financial instruments	(0.7)	(1.1)
Pro forma net amount	6.1	2.9
Liabilities gross amount recognized in balance sheets	5.3	19.7
Less amounts not offset in financial instruments	(0.7)	(1.1)
Pro forma net amount	$ 4.6	$ 18.6
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts payable, accrued expenses and other	Accounts payable, accrued expenses and other
Interest Rate Contract | Other Assets
Derivatives, Fair Value [Line Items]
Assets gross amount recognized in balance sheets	$ 6.8	$ 4.0
Interest Rate Contract | Accounts Payable, Accrued Expenses and Other
Derivatives, Fair Value [Line Items]
Liabilities gross amount recognized in balance sheets	$ 5.3	$ 19.7