Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Carrying Value of Goodwill by Segment

The carrying amount of goodwill at March 31, 2021 and December 31, 2020 were as follows:  

	Business Services			Marketing Solutions			Total
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
Foreign exchange		(3.2	)		—			(3.2	)
Net book value as of March 31, 2021
Goodwill		2,073.1			519.5			2,592.6
Accumulated impairment losses		(1,931.1	)		(254.1	)		(2,185.2	)
Total	$	142.0		$	265.4		$	407.4

Components of Other Intangible Assets

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

	March 31, 2021							December 31, 2020
	Gross							Gross
	Carrying		Accumulated			Net Book		Carrying		Accumulated			Net Book
	Amount		Amortization			Value		Amount		Amortization			Value
Client relationships	$	413.5	$	(361.8	)	$	51.7	$	417.0	$	(361.1	)	$	55.9
Trade names		28.8		(16.5	)		12.3		29.1		(16.2	)		12.9
Trademarks, licenses and agreements		23.2		(23.2	)		—		23.2		(23.2	)		—
Patents		2.0		(2.0	)		—		2.0		(2.0	)		—
Total amortizable other intangible assets		467.5		(403.5	)		64.0		471.3		(402.5	)		68.8