Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Value of Goodwill by Segment

The changes in the carrying amount of goodwill for the years ended December 31, 2020 and 2019 were as follows:

	Business Services			Marketing Solutions			Total
Net book value as of January 1, 2019
Goodwill		2,456.6			519.6			2,976.2
Accumulated impairment losses		(2,316.2	)		(254.1	)		(2,570.3	)
Total	$	140.4		$	265.5		$	405.9
Foreign exchange and other adjustments		(1.3	)		—			(1.3	)
Net book value as of December 31, 2019
Goodwill		2,059.1			519.5			2,578.6
Accumulated impairment losses		(1,920.0	)		(254.1	)		(2,174.1	)
Total	$	139.1		$	265.4		$	404.5
Foreign exchange and other adjustments		(6.1	)		—			(6.1	)
Net book value as of December 31, 2020
Goodwill		2,076.1			519.5			2,595.6
Accumulated impairment losses		(1,930.9	)		(254.1	)		(2,185.0	)
Total	$	145.2		$	265.4		$	410.6

Components of Other Intangible Assets

The components of other intangible assets at December 31, 2020 and 2019 were as follows:

	December 31, 2020							December 31, 2019
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Client relationships	$	417.0	$	(361.1	)	$	55.9	$	410.2	$	(337.1	)	$	73.1
Patents		2.0		(2.0	)		—		2.0		(2.0	)		—
Trademarks, licenses and agreements		23.2		(23.2	)		—		23.5		(23.5	)		—
Trade names		29.1		(16.2	)		12.9		31.5		(15.8	)		15.7
Total other intangible assets	$	471.3	$	(402.5	)	$	68.8	$	467.2	$	(378.4	)	$	88.8

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 as of December 31, 2020:  

	Amount
2021	$	18.9
2022		18.8
2023		18.8
2024		2.9
2025		1.3
2026 and thereafter		8.1
Total	$	68.8