Quarterly report pursuant to Section 13 or 15(d)

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

v3.24.1.u1
Restructuring Activities - Schedule of Changes in the Liabilities Related to the Transformation Program (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]    
Beginning Balance $ 9.2  
Expenses 5.9 $ 27.3
Cash payments (5.4)  
Non-cash items and other (0.1)  
Ending Balance 9.6  
Professional Fees [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning Balance 1.0  
Expenses 0.9 2.1
Cash payments (1.5)  
Non-cash items and other 0.0  
Ending Balance 0.4  
Retention and Separation [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning Balance 8.2  
Expenses 4.9 25.2
Cash payments (3.8)  
Non-cash items and other (0.1)  
Ending Balance 9.2  
Other [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning Balance 0.0  
Expenses 0.1 $ 0.0
Cash payments (0.1)  
Non-cash items and other 0.0  
Ending Balance $ 0.0