Financial Instruments - Fair Value of Derivative Instruments on Balance Sheet (Detail) - USD ($) $ in Millions	Aug. 31, 2015	Nov. 30, 2014	Aug. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total derivative assets, Fair Value	$ 8.6	$ 12.3	$ 8.9
Total derivative liabilities, Fair Value	1.4	1.4	0.8
Interest Rate Contract [Member] | Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts, Fair Value	3.5	7.4	7.3
Derivative Asset, Notional Amount	150.0	100.0	100.0
Foreign Exchange Contract [Member] | Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Notional Amount	143.7	106.3	105.9
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	5.1	4.9	1.6
Foreign Exchange Contract [Member] | Other accrued liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	1.2	1.4	0.8
Derivative Liability, Notional Amount	$ 81.2	$ 156.4	$ 104.6