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v3.24.2

Restructuring Activities - Schedule of Changes in the Liabilities Related to the Transformation Program (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  |  | $ 9.2 |
Expenses | $ 3.5 | $ 10.1 | 9.4 | $ 37.4
Cash payments |  |  | (10.2) |
Non-cash items and other |  |  | 0.0 |
Ending Balance | 8.4 |  | 8.4 |
Professional Fees [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  |  | 1.0 |
Expenses | 0.6 | 2.0 | 1.5 | 4.1
Cash payments |  |  | (2.2) |
Non-cash items and other |  |  | 0.0 |
Ending Balance | 0.3 |  | 0.3 |
Retention and Separation [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  |  | 8.2 |
Expenses | 2.9 | 7.9 | 7.8 | 33.1
Cash payments |  |  | (7.9) |
Non-cash items and other |  |  | 0.0 |
Ending Balance | 8.1 |  | 8.1 |
Other [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  |  | 0.0 |
Expenses | 0.0 | $ 0.2 | 0.1 | $ 0.2
Cash payments |  |  | (0.1) |
Non-cash items and other |  |  | 0.0 |
Ending Balance | $ 0.0 |  | $ 0.0 |

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