Fair Value Measurement of Assets and Liabilities - Schedule of Fair Value Liabilities Measured on Recurring Basis (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Acquisition Integration Divestiture And Related Expenses
Fair Value Measurements at Reporting Date Using: Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning balance December 31, 2023	$ 141.7
Change in estimates	(1.6)
Settlements	(24.9)
Ending balance March 31, 2024	$ 115.2