Financial Instruments - Fair Value of Derivative Instruments on Balance Sheet (Detail) - USD ($) $ in Millions	Aug. 31, 2016	Nov. 30, 2015	Aug. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total derivative assets, Fair Value	$ 8.9	$ 5.9	$ 8.6
Total derivative liabilities, Fair Value	2.3	1.3	1.4
Interest Rate Contract [Member] | Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts, Fair Value	5.5	2.5	3.5
Derivative Asset, Notional Amount	100.0	100.0	150.0
Interest Rate Contract [Member] | Other Current Liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts, Fair Value		0.6	0.2
Derivative Asset, Notional Amount		100.0	50.0
Foreign Exchange Contract [Member] | Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Notional Amount	153.8	179.5	143.7
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	3.4	3.4	5.1
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	2.3	0.7	1.2
Derivative Liability, Notional Amount	$ 236.4	$ 85.0	$ 81.2