Goodwill and Acquired Intangible Assets (Details 5) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 01, 2012	Aug. 31, 2013 TransWeb [Member]
Finite-Lived Intangible Assets [Line Items]
Trademarks - indefinite lived	$ 42,661	$ 42,332	$ 900
Intangible asset, gross - finite lived			$ 9,332

Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

Name:	us-gaap_IndefiniteLivedTrademarks
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant