Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Balances of Goodwill by Reporting Unit

The goodwill balances by reportable segment were as follows:

	Gross book value at December 31, 2021		Accumulated impairment charges at December 31, 2021			Net book value at December 31, 2021		Foreign exchange and other adjustments			Net book  value at September 30, 2022
Capital Markets - Software Solutions	$	103.7	$	—		$	103.7	$	(0.2	)	$	103.5
Capital Markets - Compliance and Communications Management		253.1		—			253.1		(0.6	)		252.5
Investment Companies - Software Solutions		53.2		—			53.2		(0.2	)		53.0
Investment Companies - Compliance and Communications Management		40.6		(40.6	)		—		—			—
Total	$	450.6	$	(40.6	)	$	410.0	$	(1.0	)	$	409.0

Components of Other Intangible Assets

The components of other intangible assets at September 30, 2022 and December 31, 2021 were as follows:

	September 30, 2022							December 31, 2021
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Customer relationships (useful life of 15 years)	$	10.4	$	(2.6	)	$	7.8	$	10.4	$	(2.1	)	$	8.3
Trade names (useful life of 5 years)		1.0		(0.8	)		0.2		1.0		(0.6	)		0.4
Total other intangible assets (a)	$	11.4	$	(3.4	)	$	8.0	$	11.4	$	(2.7	)	$	8.7

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The weighted-average remaining useful life of the unamortized intangible assets as of September 30, 2022 is approximately eleven years.

Schedule of Estimated Annual Amortization Expense Related to Other Intangible Assets

The following table outlines the estimated annual amortization expense related to other intangible assets:

For the year ending December 31,	Amount
2022 (excluding the nine months ended September 30, 2022)	$	0.2
2023		0.9
2024		0.7
2025		0.7
2026		0.7
2027 and thereafter		4.8
Total	$	8.0