Derivative Instruments and Hedging Activities - Derivative Instruments Not Designated as Hedging Instruments (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Derivatives Not Designated as Hedges [Member] | Foreign Exchange Forward Contracts [Member] | Other income, net [Member] | ||||
| Derivative Instruments Gain Loss [Line Items] | ||||
| Gains from derivative instruments not designated as hedging instruments | $ (10.7) | $ 7.8 | $ 10.5 | $ 8.0 |