v3.26.1
Revenue - Schedule of Disaggregation of Revenue between Software Solutions, Tech-Enabled Services and Print and Distribution by Reportable Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total $ 224.2 $ 218.1 $ 429.7 $ 419.2
Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 99.4 92.2 191.1 176.8
Tech-enabled Services        
Disaggregation of Revenue [Line Items]        
Total 90.2 85.2 160.3 161.7
Print and Distribution        
Disaggregation of Revenue [Line Items]        
Total 34.6 40.7 78.3 80.7
Capital Markets - Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 65.7 59.1 124.3 111.0
Capital Markets - Software Solutions | Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 65.7 59.1 124.3 111.0
Capital Markets - Software Solutions | Tech-enabled Services        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Capital Markets - Software Solutions | Print and Distribution        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Capital Markets - Compliance and Communications Management        
Disaggregation of Revenue [Line Items]        
Total 95.9 93.5 178.7 177.4
Capital Markets - Compliance and Communications Management | Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Capital Markets - Compliance and Communications Management | Tech-enabled Services        
Disaggregation of Revenue [Line Items]        
Total 71.5 65.6 124.8 125.4
Capital Markets - Compliance and Communications Management | Print and Distribution        
Disaggregation of Revenue [Line Items]        
Total 24.4 27.9 53.9 52.0
Investment Companies - Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 33.7 33.1 66.8 65.8
Investment Companies - Software Solutions | Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 33.7 33.1 66.8 65.8
Investment Companies - Software Solutions | Tech-enabled Services        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Investment Companies - Software Solutions | Print and Distribution        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Investment Companies - Compliance and Communications Management        
Disaggregation of Revenue [Line Items]        
Total 28.9 32.4 59.9 65.0
Investment Companies - Compliance and Communications Management | Software Solutions        
Disaggregation of Revenue [Line Items]        
Total 0.0 0.0 0.0 0.0
Investment Companies - Compliance and Communications Management | Tech-enabled Services        
Disaggregation of Revenue [Line Items]        
Total 18.7 19.6 35.5 36.3
Investment Companies - Compliance and Communications Management | Print and Distribution        
Disaggregation of Revenue [Line Items]        
Total $ 10.2 $ 12.8 $ 24.4 $ 28.7