Quarterly report pursuant to Section 13 or 15(d)

Restructuring Activities - Schedule of Changes in the Liabilities Related to the Restructuring Program (Detail)

v3.24.3
Restructuring Activities - Schedule of Changes in the Liabilities Related to the Restructuring Program (Detail)
$ in Millions
 9 Months Ended
Sep. 30, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]  
Expenses $ 68.2
Ending Balance 7.3
Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments (60.9)
Non-cash items and other 0.0
Professional Fees [Member]  
Restructuring Cost and Reserve [Line Items]  
Expenses 4.5
Ending Balance 0.5
Professional Fees [Member] | Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments (4.0)
Non-cash items and other 0.0
Retention and Separation [Member]  
Restructuring Cost and Reserve [Line Items]  
Expenses 63.7
Ending Balance 6.8
Retention and Separation [Member] | Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments (56.9)
Non-cash items and other 0.0
Others [Member]  
Restructuring Cost and Reserve [Line Items]  
Expenses 0.0
Ending Balance 0.0
Others [Member] | Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments 0.0
Non-cash items and other $ 0.0