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Restructuring and Transformation Program - Costs Included in Selling, General & Administrative Expenses (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] |  |  |  |
Restructuring costs | $ 5.3 | $ 0.8 | $ 10.3 | $ 3.9
Transformation costs | 11.8 | 6.0 | 28.8 | 14.5
Total restructuring and transformation costs | 17.1 | 6.8 | 39.1 | 18.4
Severance and related costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Transformation costs | 0.3 | 0.3 | 0.7 | 2.2
Other Transformation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Transformation costs | 11.5 | 5.7 | 28.1 | 12.3
Severance and related costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring costs | 5.4 | 0.9 | 9.4 | 3.4
Other Restructuring Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring costs | $ (0.1) | $ (0.1) | $ 0.9 | $ 0.5

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