v2.4.0.8

Investment in Privately-Held Company (Details) (USD $) In Millions, unless otherwise specified | Aug. 31, 2013
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Investments, All Other Investments [Abstract] |
Cost Method Investments, Original Cost | $ 2.0

X
- Definition Original amount of cost-method investments at the acquisition date. + References No definition available. + Details
Name: | us-gaap_CostMethodInvestmentsOriginalCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentsAllOtherInvestmentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration