Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

5. Goodwill and Other Intangible Assets

The carrying amount of goodwill at June 30, 2019 and December 31, 2018 were as follows:

	Business Services			Marketing Solutions			Total
Net book value as of December 31, 2018
Goodwill	$	2,604.3		$	519.5		$	3,123.8
Accumulated impairment losses		(2,316.3	)		(254.1	)		(2,570.4	)
Total		288.0			265.4			553.4
Foreign exchange		(0.3	)		—			(0.3	)

Net book value as of June 30, 2019
Goodwill		2,614.9			519.5			3,134.4
Accumulated impairment losses		(2,327.2	)		(254.1	)		(2,581.3	)
Total	$	287.7		$	265.4		$	553.1

The components of other intangible assets at June 30, 2019 and December 31, 2018 were as follows:

	June 30, 2019							December 31, 2018
	Gross							Gross
	Carrying		Accumulated			Net Book		Carrying		Accumulated			Net Book
	Amount		Amortization			Value		Amount		Amortization			Value

Client relationships	$	512.5	$	(428.5	)	$	84.0	$	520.3	$	(425.5	)	$	94.8
Patents		2.0		(2.0	)		—		2.0		(2.0	)		—
Trademarks, licenses and agreements		25.2		(24.9	)		0.3		25.7		(25.2	)		0.5
Trade names		34.3		(17.6	)		16.7		34.6		(16.6	)		18.0
Total other intangible assets	$	574.0	$	(473.0	)	$	101.0	$	582.6	$	(469.3	)	$	113.3

Amortization expense for other intangible assets was $5.8 million and $12.2 million for the three and six months ended June 30, 2019, respectively, and was $6.9 million and $13.9 million for the three and six months ended June 30, 2018, respectively.