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Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 152.8	$ 142.6	$ 465.7	$ 396.9
Contract assets	6.9		6.9		$ 5.8
Credit cards
Disaggregation of Revenue [Line Items]
Revenue	54.0	57.4	166.5	157.2
Loans
Disaggregation of Revenue [Line Items]
Revenue	32.9	28.4	78.0	86.7
Other verticals
Disaggregation of Revenue [Line Items]
Revenue	$ 65.9	$ 56.8	$ 221.2	$ 153.0

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