Revenue - Schedule of Disaggregation of Revenue between Tech-Enabled Services, Software Solutions and Print and Distribution by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total net sales	$ 833.6	$ 993.3	$ 894.5
Tech-enabled Services
Total net sales	380.9	519.5	409.2
Software Solutions
Total net sales	279.6	270.0	200.2
Print and Distribution
Total net sales	173.1	203.8	285.1
Capital Markets - Software Solutions
Total net sales	180.2	181.0	133.2
Capital Markets - Software Solutions | Tech-enabled Services
Total net sales	0.0	0.0	0.0
Capital Markets - Software Solutions | Software Solutions
Total net sales	180.2	181.0	133.2
Capital Markets - Software Solutions | Print and Distribution
Total net sales	0.0	0.0	0.0
Capital Markets - Compliance and Communications Management
Total net sales	410.3	561.5	424.0
Capital Markets - Compliance and Communications Management | Tech-enabled Services
Total net sales	305.1	443.1	314.4
Capital Markets - Compliance and Communications Management | Software Solutions
Total net sales	0.0	0.0	0.0
Capital Markets - Compliance and Communications Management | Print and Distribution
Total net sales	105.2	118.4	109.6
Investment Companies - Software Solutions
Total net sales	99.4	89.0	67.0
Investment Companies - Software Solutions | Tech-enabled Services
Total net sales	0.0	0.0	0.0
Investment Companies - Software Solutions | Software Solutions
Total net sales	99.4	89.0	67.0
Investment Companies - Software Solutions | Print and Distribution
Total net sales	0.0	0.0	0.0
Investment Companies - Compliance and Communications Management
Total net sales	143.7	161.8	270.3
Investment Companies - Compliance and Communications Management | Tech-enabled Services
Total net sales	75.8	76.4	94.8
Investment Companies - Compliance and Communications Management | Software Solutions
Total net sales	0.0	0.0	0.0
Investment Companies - Compliance and Communications Management | Print and Distribution
Total net sales	$ 67.9	$ 85.4	$ 175.5