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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Nov. 30, 2016 | Nov. 30, 2015 | Nov. 30, 2014
Accounting Policies [Abstract] |  |  |
Cash equivalents | $ 396,100 | $ 342,300 |
Restricted Cash and Cash Equivalents | 0 | 9,344 |
Schedule of Equity Method Investments [Line Items] |  |  |
Debt Issuance Costs, Net | 18,300 | 23,800 |
Impairment of Real Estate | 49,580 | 8,030 | $ 37,628
Property and equipment amount | 14,240 | 13,100 |
Accumulated depreciation | 18,200 | 15,300 |
Depreciation expense | 3,637 | 3,411 | 2,420
Advertising costs incurred | 32,700 | 33,400 | 30,200
Expensed legal fees | $ 13,600 | 11,700 | $ 10,900
Minimum |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Estimated useful life for depreciation of property and equipment | 2 years |  |
Maximum |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Estimated useful life for depreciation of property and equipment | 10 years |  |
Land [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Impairment of Real Estate |  | $ 26,600 |

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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