Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Balances of Goodwill by Reporting Unit

The balances of goodwill by reporting unit are presented below:

	Gross book value at December 31, 2020		Accumulated impairment charges at December 31, 2020			Net book value at December 31, 2020		Foreign exchange and other adjustments		Net book value at September 30, 2021
Capital Markets - Software Solutions	$	103.7	$	—		$	103.7	$	—	$	103.7
Capital Markets - Compliance and Communications Management		253.0		—			253.0		—		253.0
Investment Companies - Software Solutions		53.2		—			53.2		—		53.2
Investment Companies - Compliance and Communications Management		40.6		(40.6	)		—		—		—
Total	$	450.5	$	(40.6	)	$	409.9	$	—	$	409.9

Components of Other Intangible Assets

The components of other intangible assets at September 30, 2021 and December 31, 2020 were as follows:

	September 30, 2021							December 31, 2020
	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	$	(1.9	)	$	8.5	$	10.4	$	(1.4	)	$	9.0
Trade names (useful life of 5 years)		1.0		(0.5	)		0.5		1.0		(0.4	)		0.6
Software license (useful life of 3 years)		0.3		(0.2	)		0.1		0.3		(0.1	)		0.2
Total other intangible assets	$	11.7	$	(2.6	)	$	9.1	$	11.7	$	(1.9	)	$	9.8

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
2021 (excluding the nine months ended September 30, 2021)	$	0.3
2022		1.0
2023		0.9
2024		0.7
2025		0.7
2026 and thereafter		5.5
Total	$	9.1