Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Segment Information - Supplemental Geographic and Customer Solution Set Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 556.3	$ 541.9	$ 1,629.6	$ 1,567.3
Finance & Risk
Segment Reporting Information [Line Items]
Revenue	326.3	322.7	948.9	922.0
Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	230.0	219.2	680.7	645.3
Operating segments \| North America
Segment Reporting Information [Line Items]
Revenue	403.6	374.1	1,152.2	1,070.7
Operating segments \| North America \| Finance & Risk
Segment Reporting Information [Line Items]
Revenue	224.1	214.0	635.8	604.2
Operating segments \| North America \| Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	179.5	160.1	516.4	466.5
Operating segments \| International
Segment Reporting Information [Line Items]
Revenue	152.7	167.8	477.4	501.4
Operating segments \| International \| Finance & Risk
Segment Reporting Information [Line Items]
Revenue	102.2	108.7	313.1	320.1
Operating segments \| International \| Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	50.5	59.1	164.3	181.3
Corporate and other
Segment Reporting Information [Line Items]
Revenue	0.0	0.0	0.0	(4.8)
Corporate and other \| Finance & Risk
Segment Reporting Information [Line Items]
Revenue	0.0	0.0	0.0	(2.3)
Corporate and other \| Sales & Marketing
Segment Reporting Information [Line Items]
Revenue	$ 0.0	$ 0.0	$ 0.0	$ (2.5)