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Unconsolidated Affiliates, Noncontrolling Interests and Cost Method Investments (Cost Method Investments) (Details) (Jinsheng [Member], USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Feb. 28, 2007
Cost Method Investments [Abstract] |  |
Percentage of ownership interest in Jinsheng (in hundredths) | 6.20% |
Number of Malls Owned by Subsidiary | 8 |
Number of series 2 ordinary shares secured against convertible security notes | 16,565,534 |
Noncontrolling Interest, Increase in Ownership Percentage | 2.275% |
Receivable with Imputed Interest, Face Amount | $ 4,875 |
Notes Receivable, Fair Value Disclosure |  | 4,513
Discount |  | 362
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] |  |
Cost Method Investments [Abstract] |  |
Notes Receivable, Fair Value Disclosure | $ 2,475 |

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- Details
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- Definition Number of Malls Owned by Subsidiary + References No definition available. + Details
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- Definition The number of Series 2 ordinary shares held as security on the convertible promissory note. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money at a future date(s). + 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 210.5-02.3(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph b -Article 5 + Details
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- Definition Disclosure of the unamortized amount of the discount on the note or receivable which is deducted from the face amount of the receivable or loan. The discount or premium is the difference between the present value and the face amount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16 -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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