v3.26.3
Revenues - Schedule of Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues $ 523.5 $ 481.6 $ 1,499.0 $ 1,380.3
Non-Topic 606 revenues 256.6 210.2 708.4 607.6
Total revenues 780.1 691.8 2,207.5 1,987.9
Mobility        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 242.6 204.9 680.4 592.1
Non-Topic 606 revenues 192.5 155.9 521.7 448.8
Total revenues 435.1 360.8 1,202.1 1,040.8
Benefits        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 147.8 148.6 455.5 448.0
Non-Topic 606 revenues 59.8 49.6 174.3 144.5
Total revenues 207.6 198.1 629.8 592.5
Corporate Payments        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 133.1 128.1 363.1 340.3
Non-Topic 606 revenues 4.4 4.7 12.5 14.3
Total revenues 137.4 132.8 375.6 354.5
Payment processing revenue        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 344.8 301.7 973.4 858.8
Total revenues 344.8 301.7 973.4 858.8
Payment processing revenue | Mobility        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 205.4 168.2 573.0 484.9
Total revenues 205.4 168.2 573.0 484.9
Payment processing revenue | Benefits        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 25.8 23.8 88.3 80.8
Total revenues 25.8 23.8 88.3 80.8
Payment processing revenue | Corporate Payments        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 113.6 109.7 312.1 293.1
Total revenues 113.6 109.7 312.1 293.1
Account servicing revenue        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 141.0 142.7 417.2 418.5
Total revenues 186.7 185.3 547.0 542.3
Account servicing revenue | Mobility        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 11.4 11.1 34.4 31.8
Total revenues 57.1 53.7 164.2 155.6
Account servicing revenue | Benefits        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 110.2 113.3 332.1 339.7
Total revenues 110.2 113.3 332.1 339.7
Account servicing revenue | Corporate Payments        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 19.4 18.3 50.8 47.0
Total revenues 19.4 18.3 50.8 47.0
Other revenue        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 37.7 37.2 108.4 103.1
Total revenues 132.7 121.5 389.1 347.6
Other revenue | Mobility        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 25.8 25.7 73.1 75.4
Total revenues 56.9 56.0 167.9 162.2
Other revenue | Benefits        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 11.8 11.5 35.1 27.6
Total revenues 71.5 61.0 209.2 172.0
Other revenue | Corporate Payments        
Disaggregation of Revenue [Line Items]        
Total Topic 606 revenues 0.1 0.1 0.2 0.1
Total revenues $ 4.3 $ 4.5 $ 12.0 $ 13.4