Financial Instruments-Additional Information (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Aug. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Maximum time frame for foreign exchange contracts, months	15 months
Amount of accumulated other comprehensive income expected to be reclassified to earnings in next 12 months	$ 0.2

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

Name:	us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant