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Investment in Unconsolidated Ventures (Details) (USD $) In Thousands | Jun. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Financial position of the Real Estate Ventures |  |
Company's share of equity (Company's basis) | $ 82,927 | $ 84,372
Unconsolidated real estate ventures [Member] |  |
Financial position of the Real Estate Ventures |  |
Net property | 726,254 | 804,705
Other Assets | 99,589 | 105,576
Other Liabilities | 39,583 | 44,509
Debt | 683,679 | 748,387
Equity | 102,581 | 117,385
Company's share of equity (Company's basis) | $ 82,927 | $ 84,372

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