Income Taxes, (As Restated for fiscal 2014 and 2013) - Summary of Changes in Valuation Allowance (Details) - Tax Valuation Allowance [Member] - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 2.6	$ 2.6	$ 288.1
Tax Valuation Allowance Charged to Income Tax Provision	0.6	0.0	61.2
Charged to Other Accounts	0.0	0.0	(100.4)
Tax Valuation Allowance Credited to Income Tax Provision	(1.5)	0.0	(246.3)
Balance at End of Period	$ 1.7	$ 2.6	$ 2.6