Fair Value of Foreign Exchange Forward Contracts (Detail) (Derivatives Not Designated as Hedging Instruments, Foreign exchange forward contracts, USD $) In Thousands, unless otherwise specified	May 31, 2013 Other assets	Nov. 30, 2013 Accrued expenses
Derivatives Not Designated as Hedging Instruments
Foreign exchange forward contracts Other assets	$ 114
Foreign exchange forward contracts Accrued expenses		$ 66

Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant