Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

6. Goodwill and Other Intangible Assets

The carrying amount of goodwill at September 30, 2020 and December 31, 2019 were as follows:  

	Business Services			Marketing Solutions			Total
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		3.0			—			3.0
Net book value as of September 30, 2020
Goodwill		2,054.6			519.5			2,574.1
Accumulated impairment losses		(1,912.5	)		(254.1	)		(2,166.6	)
Total	$	142.1		$	265.4		$	407.5

The components of other intangible assets at September 30, 2020 and December 31, 2019 were as follows:

	September 30, 2020							December 31, 2019
	Gross							Gross
	Carrying		Accumulated			Net Book		Carrying		Accumulated			Net Book
	Amount		Amortization			Value		Amount		Amortization			Value
Client relationships	$	413.4	$	(353.3	)	$	60.1	$	410.2	$	(337.1	)	$	73.1
Trade names		30.7		(17.0	)		13.7		31.5		(15.8	)		15.7
Trademarks, licenses and agreements		23.5		(23.5	)		—		23.5		(23.5	)		—
Patents		2.0		(2.0	)		—		2.0		(2.0	)		—
Total amortizable other intangible assets		469.6		(395.8	)		73.8		467.2		(378.4	)		88.8

Amortization expense for other intangible assets was $4.8 million and $14.5 million for the three and nine months ended September 30, 2020, respectively, and was $5.3 million and $16.6 million for the three and nine months ended September 30, 2019, respectively.