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Fair Value Measurements (Nonrecurring Measurments) (Details) (USD $) | 12 Months Ended |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 30, 2013 | Nov. 30, 2012 | Nov. 30, 2011 | Nov. 30, 2012 Nonrecurring [Member] | Nov. 30, 2012 Level 1 [Member] Nonrecurring [Member] | Nov. 30, 2012 Level 2 [Member] Nonrecurring [Member] | Nov. 30, 2012 Level 3 [Member] Nonrecurring [Member] | Nov. 30, 2012 Artix, Orbacus and Orbix [Member] | Nov. 30, 2012 Artix, Orbacus and Orbix [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Assets held for sale | $ 0 | $ 68,029,000 |  | $ 16,487,000 | $ 0 | $ 16,487,000 | $ 0 | $ 21,774,000 | $ 21,774,000
Impairment loss on assets held for sale | 0 | 8,601,000 | 0 |  |  |  |  | 8,600,000 | 8,601,000
Assets held for sale, at fair value |  |  |  |  |  |  |  | 16,500,000 | 16,500,000
Assets held for sale, at carrying value |  |  |  |  |  |  |  | $ 25,100,000 | $ 25,100,000

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- Definition The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for current assets (assets with expected useful life shorter than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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