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Income Taxes (Tables)
 12 Months Ended
Nov. 30, 2018
Valuation Allowance [Line Items]  
Summary of Valuation Allowance [Table Text Block]
A reconciliation of the beginning and ending deferred tax valuation allowance is as follows:
 
Years Ended November 30,
 
2019
 
2018
 
2017
 
(Dollars in millions)
Beginning balance December 1
$
53.2

 
$
88.8

 
$
14.1

Additions (Reductions) Charged to Expense
(16.8
)
 
(32.2
)
 
79.9

Additions (Reductions) Charged to Other Accounts
7.6

 
(2.9
)
 
(2.6
)
Reduction due to Entity Disposition
(0.2
)
 
—

 
(3.9
)
Foreign Currency Effects
(0.3
)
 
(0.5
)
 
1.3

Ending balance November 30
$
43.5

 
$
53.2

 
$
88.8
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
The components of income (loss) before income taxes are as follows:
 
Years Ended November 30,
 
2019
 
2018
 
2017
 
(Dollars in millions)
Income (Loss) Before Income Taxes:
 
 
 
 
 
U.S.
$
(17.8
)
 
$
(2.0
)
 
$
(9.1
)
Foreign
(1.2
)
 
16.5

 
5.0

 
$
(19.0
)
 
$
14.5

 
$
(4.1
)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
 
Years Ended November 30,
 
2019
 
2018
 
2017
 
(Dollars in millions)
Income Tax (Expense) Benefit:
 
 
 
 
 
Current:
 
 
 
 
 
U.S. Federal
$
(0.2
)
 
$
(0.1
)
 
$
(0.6
)
U.S. State and Local
(0.1
)
 
(0.2
)
 
(0.1
)
Foreign
(5.1
)
 
(7.3
)
 
(5.9
)
 
(5.4
)
 
(7.6
)
 
(6.6
)
Deferred:
 
 
 
 
 
U.S. Federal
0.5

 
10.5

 
(72.6
)
U.S. State and Local
0.6

 
(0.1
)
 
(7.8
)
Foreign
0.9

 
3.4

 
3.3

 
2.0

 
13.8

 
(77.1
)
Income Tax (Expense) Benefit
$
(3.4
)
 
$
6.2

 
$
(83.7
)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
 
Years Ended November 30,
 
2019
 
2018
 
2017
 
(Dollars in millions)
Effective Income Tax (Expense) Benefit:
 
 
 
 
 
Tax at federal statutory rate
$
4.0

 
$
(3.2
)
 
$
1.4

Valuation allowances
16.6

 
5.5

 
(79.9
)
U.S. legislative change
—

 
4.1

 
—

Foreign taxes at different rates
(3.1
)
 
(0.5
)
 
1.3

U.S. tax on foreign dividends
—

 
—

 
(0.4
)
Non-deductible impairment
—

 
—

 
(6.9
)
GILTI
(3.9
)
 
—

 
—

Transition Tax
(5.8
)
 
—

 
—

Executive stock compensation
(0.2
)
 
0.2

 
0.3

Other permanent items
(0.1
)
 
(0.2
)
 
(0.1
)
State and local taxes
0.5

 
(0.1
)
 
(0.7
)
Foreign withholding tax
(0.3
)
 
(0.4
)
`
(1.0
)
Non-deductible restructuring costs
(0.5
)
 
—

 
—

Taxable intercompany gains
(0.6
)
 
—

 
—

Tax Credits
0.3

 
—

 
—

Liquidation recapture gain
(9.8
)
 
—

 
—

Foreign non-deductible interest
(0.4
)
 
(0.4
)
 
(0.7
)
French business tax
(0.5
)
 
(0.6
)
 
(0.5
)
French legislation change
(0.1
)
 
0.9

 
3.4

Non-taxable research and development
0.3

 
0.3

 
0.2

Tax equity adjustment
—

 
0.4

 
—

Other, net
0.2

 
0.2

 
(0.1
)
Effective Income Tax (Expense) Benefit
$
(3.4
)
 
$
6.2

 
$
(83.7
)
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
 
November 30,
 
2019
 
2018
 
(Dollars in millions)
 
Assets
 
Liabilities
 
Assets
 
Liabilities
Accrued estimated costs
$
5.5

 
$
—

 
$
5.7

 
$
—

Inventory
6.3

 
—

 
6.1

 
—

Goodwill and intangible assets
—

 
8.4

 
—

 
11.2

Depreciation
—

 
18.9

 
—

 
12.4

Pension
18.0

 
—

 
12.6

 
—

NOLC’s and other carryforwards
26.1

 
—

 
37.3

 
—

Post-retirement employee benefits
2.5

 
—

 
2.3

 
—

Other
1.9

 
—

 
—

 
0.4

Valuation allowance
(43.5
)
 
—

 
(53.2
)
 
—

Deferred Income Taxes
$
16.8

 
$
27.3

 
$
10.8

 
$
24.0
Schedule of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns Roll Forward [Table Text Block]
A reconciliation of the beginning and ending amounts of unrecognized tax benefits, excluding interest and penalties is as follows:
 
Years Ended November 30,
 
2019
 
2018
 
2017
 
(Dollars in millions)
Beginning balance, December 1
$
0.6

 
$
0.3

 
$
0.3

Increase based on tax positions related to current year
0.1

 
—

 
—

Increase due to acquisition
—

 
0.3

 
—

Reduction due to lapse of statute of limitations
(0.1
)
 
—

 
—

Ending balance, November 30
$
0.6

 
$
0.6

 
$
0.3