Segment Information - Supplemental Geographic and Customer Solution Set Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 2,314.0	$ 2,224.6	$ 2,165.6
Finance & Risk
Segment Reporting Information [Line Items]
Revenue	1,336.7	1,286.0	1,262.8
Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	977.3	938.6	902.8
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenue	1,644.5	1,587.1	1,499.4
Operating Segments | North America | Finance & Risk
Segment Reporting Information [Line Items]
Revenue	888.1	866.9	834.7
Operating Segments | North America | Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	756.4	720.2	664.7
Operating Segments | International
Segment Reporting Information [Line Items]
Revenue	669.5	637.5	671.0
Operating Segments | International | Finance & Risk
Segment Reporting Information [Line Items]
Revenue	448.6	419.1	430.3
Operating Segments | International | Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	220.9	218.4	240.7
Corporate and other
Segment Reporting Information [Line Items]
Revenue	0.0	0.0	(4.8)
Corporate and other | Finance & Risk
Segment Reporting Information [Line Items]
Revenue	0.0	0.0	(2.2)
Corporate and other | Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	$ 0.0	$ 0.0	$ (2.6)