Derivative Instruments and Hedging Activities - Schedule of Amounts Recorded On Balance Sheet Related To Cumulative Basis Adjustments For Fair Value Hedges (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Carrying Amount of Hedged Liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term debt	$ 832.6	$ 851.3
Cumulative Amount of Fair Value Hedging Adjustment Included in Carrying Amount of Hedged Liabilities [Member] | Long Term Debt Noncurrent [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term debt	$ (163.5)	$ (144.7)