Financial Instruments - Fair Value of Derivative Instruments on Balance Sheet (Detail) - USD ($) $ in Millions	May. 31, 2015	Nov. 30, 2014	May. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Anticipated Issuance, Next Twelve months	$ 50.0
Derivative, Average Fixed Interest Rate	2.11%
Total derivative assets, Fair Value	$ 11.9	$ 12.3	$ 10.6
Total derivative liabilities, Fair Value	2.1	1.4	1.4
Interest rate contract [Member] | Other current assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative, Notional Amount	50.0
Interest rate contracts, Fair Value	5.9	7.4	9.8
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	174.5	106.3	73.8
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	6.0	4.9	0.8
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	2.1	1.4	1.4
Derivative Liability, Notional Amount	$ 34.8	$ 156.4	$ 92.8