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Segment Reporting Information Corporate Severance

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Shareholder Activist Costs related to legal and other costs associated with the defense and preservation of organizational structure.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The net result for the period of deducting operating expenses from operating revenues.

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- Definition

Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Business Segment Information - Summary of Operations by Segment and Reconciliation of Segment sales (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	May 31, 2015	Feb. 28, 2015	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales	$ 187.0	$ 195.6	$ 202.0	$ 175.3	$ 200.0	$ 210.9	$ 220.2	$ 206.9	$ 759.9	$ 838.0	$ 987.4
Revenue from Related Parties									0.0	0.0	(0.2)
Total segment operating profit									68.3	34.8	65.4
Interest expense									(24.7)	(28.3)	(32.9)
Corporate expense									(25.8)	(23.7)	(20.0)
Segment Reporting Information Corporate Severance									(4.9)	0.0
Debt issuance costs write-off	(1.2)	(1.7)	0.0	0.0	(0.6)	0.0	0.0	0.0	(2.9)	(0.6)	(0.8)
Shareholder Activist Costs									(1.9)
Asset impairment	$ (5.4)	$ 0.0	$ 0.0	(0.3)	$ (18.3)	$ (0.5)	$ (0.6)	$ 0.0	(5.7)	(19.4)	0.0
Business Combination, Integration Related Costs									0.9	0.4	0.0
Income (loss) from continuing operations before income taxes									9.9	(21.1)	11.7
Performance Chemicals [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									548.8	608.1	746.5
Total segment operating profit									55.9	15.9	46.2
Asset impairment										(18.3)
Performance Chemicals [Member] \| Performance Materials [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									284.1	331.0	423.9
Performance Chemicals [Member] \| Specialty Chemicals [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									264.7	277.1	322.6
Engineered Surfaces [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									211.1	229.9	241.1
Total segment operating profit									12.4	18.9	19.2
Asset impairment				$ (0.3)					(5.4)	(0.5)
Engineered Surfaces [Member] \| Coated Fabrics [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									71.5	87.8	98.4
Engineered Surfaces [Member] \| Laminates And Performance Films [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales									139.6	142.1	142.7
Corporate, Non-Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Shareholder Activist Costs									0.0	(1.9)	0.0
Professional and Contract Services Expense									0.8	(0.4)	0.0
Asset impairment									$ 0.0	$ (0.6)	$ 0.0