Balance Sheet Classification, Fair Value and Gross and Net Amounts of Derivative Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Assets gross amount recognized in balance sheets	$ 1.2	$ 4.0
Less amounts not offset in financial instruments	(0.4)	(1.1)
Pro forma net amount	$ 0.8	$ 2.9
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets
Liabilities gross amount recognized in balance sheets	$ 5.2	$ 19.7
Less amounts not offset in financial instruments	(0.4)	(1.1)
Pro forma net amount	$ 4.8	$ 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	$ 1.2	$ 4.0
Interest Rate Contract | Accounts Payable, Accrued Expenses and Other
Derivatives, Fair Value [Line Items]
Liabilities gross amount recognized in balance sheets	$ 5.2	$ 19.7