Segment Information - Supplemental Geographic and Customer Solution Set Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenue	$ 588.5	$ 556.3	$ 1,683.6	$ 1,629.6
Finance & Risk
Segment Reporting Information [Line Items]
Revenue	348.5	326.3	978.9	948.9
Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	240.0	230.0	704.7	680.7
Operating segments | North America
Segment Reporting Information [Line Items]
Revenue	421.4	403.6	1,187.7	1,152.2
Operating segments | North America | Finance & Risk
Segment Reporting Information [Line Items]
Revenue	234.9	224.1	646.7	635.8
Operating segments | North America | Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	186.5	179.5	541.0	516.4
Operating segments | International
Segment Reporting Information [Line Items]
Revenue	167.1	152.7	495.9	477.4
Operating segments | International | Finance & Risk
Segment Reporting Information [Line Items]
Revenue	113.6	102.2	332.2	313.1
Operating segments | International | Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	$ 53.5	$ 50.5	$ 163.7	$ 164.3