v3.26.1
Reportable Segments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Number Of Reportable Segments Not Disclosed Flag     reportable segment    
Net revenues $ 2,108.9 $ 1,943.6 $ 4,204.2 $ 3,826.4  
Cost of sales 638.7 598.2 1,280.2 1,187.3  
SG&A expenses 885.5 797.1 1,769.7 1,565.0  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 10.4 15.2 23.2 24.5  
Capitalized software expenditures 15.5 14.4      
Software, Internally Developed and Purchased          
Segment Reporting [Line Items]          
Capitalized software expenditures     30.9 26.8  
Application Software          
Segment Reporting [Line Items]          
Net revenues 1,180.8 1,094.9 2,372.3 2,163.1  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 3.8 9.6 9.9 13.9  
Capitalized software expenditures 15.3 14.4      
Application Software | Software, Internally Developed and Purchased          
Segment Reporting [Line Items]          
Capitalized software expenditures     30.5 26.8  
Network Software          
Segment Reporting [Line Items]          
Net revenues 430.9 385.4 858.5 761.3  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 2.7 2.0 4.2 4.6  
Capitalized software expenditures 0.0 0.0      
Network Software | Software, Internally Developed and Purchased          
Segment Reporting [Line Items]          
Capitalized software expenditures     0.0 0.0  
Technology Enabled Products          
Segment Reporting [Line Items]          
Net revenues 497.2 463.3 973.4 902.0  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 3.9 3.6 9.1 6.0  
Capitalized software expenditures 0.2 0.0      
Technology Enabled Products | Software, Internally Developed and Purchased          
Segment Reporting [Line Items]          
Capitalized software expenditures     0.4 0.0  
Operating Segments          
Segment Reporting [Line Items]          
Net revenues 2,108.9 1,943.6 4,204.2 3,826.4  
Cost of sales 638.7 598.2 1,280.2 1,187.3  
SG&A expenses 803.9 717.4 1,610.3 1,414.0  
Operating profit 666.3 628.0 1,313.7 1,225.1  
Depreciation and other amortization 229.9 222.9 459.4 435.2  
Segments total assets: 33,186.2   33,186.2   $ 33,497.3
Operating Segments | Application Software          
Segment Reporting [Line Items]          
Net revenues 1,180.8 1,094.9 2,372.3 2,163.1  
Cost of sales 357.1 341.6 726.0 689.0  
SG&A expenses 499.7 458.7 1,003.1 902.7  
Operating profit 324.0 294.6 643.2 571.4  
Depreciation and other amortization 181.1 175.7 362.1 341.3  
Segments total assets: 25,038.3   25,038.3   25,372.6
Operating Segments | Network Software          
Segment Reporting [Line Items]          
Net revenues 430.9 385.4 858.5 761.3  
Cost of sales 67.5 64.6 134.7 124.9  
SG&A expenses 186.8 151.5 373.4 300.4  
Operating profit 176.6 169.3 350.4 336.0  
Depreciation and other amortization 42.8 41.3 85.6 82.6  
Segments total assets: 6,383.3   6,383.3   6,458.7
Operating Segments | Technology Enabled Products          
Segment Reporting [Line Items]          
Net revenues 497.2 463.3 973.4 902.0  
Cost of sales 214.1 192.0 419.5 373.4  
SG&A expenses 117.4 107.2 233.8 210.9  
Operating profit 165.7 164.1 320.1 317.7  
Depreciation and other amortization 6.0 5.9 11.7 11.3  
Segments total assets: 1,764.6   1,764.6   $ 1,666.0
Corporate          
Segment Reporting [Line Items]          
Unallocated corporate general and administrative expenses $ 81.6 $ 79.7 $ 159.4 $ 151.0