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Goodwill (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for each reportable segment were as follows ($ in millions):

			Advanced Materials & Structures						Engineered Papers						Total
Goodwill as of December 31, 2018			$	333.1					$	5.0					$	338.1
Foreign currency translation adjustments			(0.6)						(0.1)						(0.7)
Goodwill as of December 31, 2019			$	332.5					$	4.9					$	337.4
Goodwill acquired during the period			61.2						—						61.2
Foreign currency translation adjustments			4.7						0.4						5.1
Goodwill as of December 31, 2020			$	398.4					$	5.3					$	403.7

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- References

No definition available.

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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267

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