Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenue	$ 301.2	$ 250.4	$ 594.5	$ 484.9
Cost of revenue:
Recurring	75.0	65.4	157.3	125.1
Professional services and other	57.1	47.3	111.6	92.0
Product development and management	39.8	31.8	80.2	57.6
Depreciation and amortization	13.3	13.8	26.3	24.9
Total cost of revenue	185.2	158.3	375.4	299.6
Gross profit	116.0	92.1	219.1	185.3
Selling, general, and administrative	122.5	111.8	244.5	207.4
Operating loss	(6.5)	(19.7)	(25.4)	(22.1)
Interest expense, net	6.7	9.9	12.5	15.5
Other expense, net	5.8	8.2	5.5	12.8
Loss before income taxes	(19.0)	(37.8)	(43.4)	(50.4)
Income tax expense (benefit)	0.8	(12.0)	3.8	(5.4)
Net loss	$ (19.8)	$ (25.8)	$ (47.2)	$ (45.0)
Net loss per share:
Basic	$ (0.13)	$ (0.17)	$ (0.31)	$ (0.30)
Diluted	$ (0.13)	$ (0.17)	$ (0.31)	$ (0.30)
Weighted-average shares outstanding:
Basic	152,752,369	149,293,833	152,439,996	149,006,538
Diluted	152,752,369	149,293,833	152,439,996	149,006,538
Recurring [Member]
Revenue:
Total revenue	$ 251.1	$ 208.1	$ 499.0	$ 404.1
Professional Services and Other [Member]
Revenue:
Total revenue	$ 50.1	$ 42.3	$ 95.5	$ 80.8