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Goodwill (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by segment for the nine months ended September 30, 2017 were as follows ($ in millions):

	Advanced Materials & Structures				Engineered Papers				Total
Goodwill as of December 31, 2016	$	224.8			$	4.7			$	229.5
Goodwill acquired during the period	106.2				—				106.2
Foreign currency translation adjustments	4.0				0.4				4.4
Goodwill as of September 30, 2017	$	335.0			$	5.1			$	340.1

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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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