Income Taxes - Valuation Allowance Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
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)	0.0	(3.9)
Foreign Currency Effects	(0.3)	(0.5)	1.3
Ending balance November 30	43.5	$ 53.2	$ 88.8
Domestic Tax Authority [Member]
Valuation Allowance [Line Items]
deductible interest carryforward	18.4
Operating Loss Carryforwards	$ 70.2