Goodwill and Other Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 70.9	$ 66.3
Acquisitions		6.4
Currency translation adjustment	(1.5)	(1.8)
Goodwill, Ending Balance	69.4	70.9	$ 66.3
Specialty Solutions [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	70.9	66.3
Acquisitions		6.4
Currency translation adjustment	(1.5)	(1.8)
Goodwill, Ending Balance	69.4	70.9	66.3
Performance Materials [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	0.0	0.0
Acquisitions		0.0
Impairment			(19.6)
Currency translation adjustment	0.0	0.0
Goodwill, Ending Balance	$ 0.0	$ 0.0	$ 0.0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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