Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
Restructuring Activities - Schedule of Changes in the Liabilities Related to the Restructuring Program (Detail)
$ in Millions
 9 Months Ended
Sep. 30, 2025
USD ($)
Restructuring Cost and Reserve [Line Items]  
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Selling, General and Administrative Expense
Beginning Balance $ 3.7
Expenses 4.8
Ending Balance 0.9
Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments (7.6)
Non-cash items and other 0.0
Professional Fees [Member]  
Restructuring Cost and Reserve [Line Items]  
Beginning Balance 0.5
Expenses (0.5)
Ending Balance 0.0
Professional Fees [Member] | Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments 0.0
Non-cash items and other 0.0
Retention and Separation [Member]  
Restructuring Cost and Reserve [Line Items]  
Beginning Balance 3.2
Expenses 5.3
Ending Balance 0.9
Retention and Separation [Member] | Restructuring Program [Member]  
Restructuring Cost and Reserve [Line Items]  
Cash payments (7.6)
Non-cash items and other 0.0
Others [Member]  
Restructuring Cost and Reserve [Line Items]  
Beginning Balance 0.0
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