Other (Income) Expense Other (income) expense (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Other Operating Cost and Expense [Line Items]
Professional Fees	$ (0.4)	$ (5.4)	$ (1.8)
Gain on collection of notes			(1.1)
Foreign currency translation gain	0.1	(1.5)	(1.1)
cash proceeds from sale of assets	(1.0)	(1.1)
Other Expenses	0.4
Environmental Remediation Expense	0.3	3.0	1.0
Shareholder Activist Costs	$ 1.9
Other Nonoperating Expense		$ (0.8)
Interest Income, Other			0.8
State and Local Tax Expense (Benefit), Continuing Operations, Other Than Income Taxes			(1.1)
Other Nonoperating Income (Expense)			$ 0.3