v3.26.1
Restructuring, Impairment and Other Charges, net - Schedule of Restructuring, Impairment and Other Charges by Segment Recognized in Results of Operations (Details) - 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]        
Employee Terminations $ 2.2 $ 0.9 $ 2.8 $ 3.7
Other Charges 0.1 0.1 0.2 0.2
Total 2.3 1.0 3.0 3.9
Operating Segments | Capital Markets - Software Solutions        
Restructuring Cost And Reserve [Line Items]        
Employee Terminations 0.6   0.7 0.6
Other Charges (0.0)   0.0 0.0
Total 0.6   0.7 0.6
Operating Segments | Capital Markets - Compliance and Communications Management        
Restructuring Cost And Reserve [Line Items]        
Employee Terminations 0.3 0.3 0.5 1.7
Other Charges 0.1 0.0 0.1 0.1
Total 0.4 0.3 0.6 1.8
Operating Segments | Investment Companies - Software Solutions        
Restructuring Cost And Reserve [Line Items]        
Employee Terminations 0.3 0.2 0.4 0.6
Other Charges 0.0 0.0 0.0 0.0
Total 0.3 0.2 0.4 0.6
Operating Segments | Investment Companies - Compliance and Communications Management        
Restructuring Cost And Reserve [Line Items]        
Employee Terminations 0.1 0.4 0.2 0.5
Other Charges 0.0 0.0 0.0 0.0
Total 0.1 0.4 0.2 0.5
Corporate        
Restructuring Cost And Reserve [Line Items]        
Employee Terminations 0.9 0.0 1.0 0.3
Other Charges (0.0) 0.1 0.1 0.1
Total $ 0.9 $ 0.1 $ 1.1 $ 0.4