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Fair Value Measurements Assets and Liabilities Measured on a Non-Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Valuation adjustments to investments in unconsolidated joint ventures | $ 0 | $ 390 | $ 1,029
Fair Value, Significant Unobservable Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Long Lived Real Estate Assets Fair Value Disclosure | 5,494 | 6,658 | 44,629
Real Estate Related Impairments | 5,805 | 3,502 | 21,993
Long Lived Assets Initial Basis | 11,299 | 10,160 | 66,622
Total Fair Value Measurements - Non-Recurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Investments in unconsolidated joint ventures |  | $ 1,050 | $ 970

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- Definition Long lived assets initial basis. + References No definition available. + Details
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- Definition The fair value of long lived real estate assets that are held by the entity and are expected to provide future economic benefit, that were impaired during the reporting period. + References No definition available. + Details
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- Definition The charge against earnings resulting from the aggregate write down of land, terminated options/purchase contracts and related pre acquisition costs, and real estate from their carrying value to their fair value. + References No definition available. + Details
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- Definition Losses recorded relating the entity's investment in unconsolidated entities, if its investment in the unconsolidated entity, or a portion thereof, is deemed to be other than temporary impaired. + References No definition available. + Details
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- Definition Fair value portion of investments accounted under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6903542&loc=d3e32014-111567 + Details
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