Variable Interest Entities - Assets and Liabilities of Consolidated VIEs Prior to Consolidation (Footnote) (Detail) - USD ($) $ in Millions	May 31, 2017	Nov. 30, 2016
Securitization Vehicles [Member]
Variable Interest Entity [Line Items]
Secured financing included in inventory and eliminated	$ 38.9	$ 57.6

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_VariableInterestEntityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration