Property, Plant and Equipment, Net Property, Plant and Equipment, Net (Narrative) (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
Property, Plant and Equipment [Line Items]
Depreciation expense									$ 26.8	$ 30.3	$ 29.5
Property, plant, and equipment, net	$ 205.8				$ 214.9				205.8	214.9
Restructuring and Related Cost, Accelerated Depreciation									3.0	5.8
Manufacturing Facilities and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	5.0	$ 4.7	$ 4.9	$ 7.7	8.2	$ 7.8	$ 5.0	$ 5.0	22.3	26.0	23.4
Computer Software, Intangible Asset [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense									1.6	1.0	$ 0.6
Property, plant, and equipment, net	$ 3.9				$ 2.8				$ 3.9	$ 2.8