Quarterly report [Sections 13 or 15(d)]

Restructuring Activities - Schedule of Costs Related to the Technology Realignment Program (Detail)

v3.26.1
Restructuring Activities - Schedule of Costs Related to the Technology Realignment Program (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]        
Total cost of realignment program $ 1.1 $ 3.6 $ 3.5 $ 3.6
Cumulative cost incurred 12.6   12.6  
Professional Fees [Member]        
Restructuring Cost and Reserve [Line Items]        
Total cost of realignment program 0.0 0.0 0.0 0.0
Cumulative cost incurred 0.0   0.0  
Retention and Separation [Member]        
Restructuring Cost and Reserve [Line Items]        
Total cost of realignment program 1.1 3.6 3.5 3.6
Cumulative cost incurred 12.6   12.6  
Other [Member]        
Restructuring Cost and Reserve [Line Items]        
Total cost of realignment program 0.0 $ 0.0 0.0 $ 0.0
Cumulative cost incurred $ 0.0   $ 0.0