Segment Information - Schedule of Revenue from External Customers by Products and Services (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 895.4	$ 858.1
Services
Segment Reporting Information [Line Items]
Total revenue	524.8	516.4
Products
Segment Reporting Information [Line Items]
Total revenue	370.6	341.7
Banking | Services
Segment Reporting Information [Line Items]
Total revenue	386.6	381.1
Banking | Products
Segment Reporting Information [Line Items]
Total revenue	262.2	211.8
Retail | Services
Segment Reporting Information [Line Items]
Total revenue	138.2	133.2
Retail | Products
Segment Reporting Information [Line Items]
Total revenue	108.4	127.2
HFS Segment | Services
Segment Reporting Information [Line Items]
Total revenue	0.0	2.1
HFS Segment | Products
Segment Reporting Information [Line Items]
Total revenue	$ 0.0	$ 2.7