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Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill

The following table analyzes goodwill movement for 2017 and 2016.

(in millions)		Fuel Specialties				Performance Chemicals				Oilfield Services				Octane Additives				Total
At December 31, 2015
Gross cost (1)		$	207.9			$	22.2			$	37.3			$	236.5			$	503.9
Accumulated impairment losses			0.0				0.0				0.0				(236.5	)			(236.5	)
Net book amount		$	207.9			$	22.2			$	37.3			$	0.0			$	267.4
Additions			0.0				107.4				0.0				0.0				107.4
At December 31, 2016
Gross cost (1)		$	207.9			$	129.6			$	37.3			$	236.5			$	611.3
Accumulated impairment losses			0.0				0.0				0.0				(236.5	)			(236.5	)
Net book amount		$	207.9			$	129.6			$	37.3			$	0.0			$	374.8
Exchange effect			0.0				10.2				0.0				0.0				10.2
Measurement period adjustment			0.0				(23.1	)			0.0				0.0				(23.1	)
At December 31, 2017
Gross cost (1)		$	207.9			$	116.6			$	37.3			$	236.5			$	598.3
Accumulated impairment losses			0.0				0.0				0.0				(236.5	)			(236.5	)
Net book amount		$	207.9			$	116.6			$	37.3			$	0.0			$	361.8

(1) Gross cost is net of $8.7 million, $0.3 million and $289.5 million of historical accumulated amortization in respect of the Fuel Specialties, Performance Chemicals and Octane Additives reporting segments, respectively.

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- References

No definition available.

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- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

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