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Investments in Joint Ventures (Details Textual) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2012 sqft IndustrialProperty | Mar. 31, 2011 | Dec. 31, 2011
Investment In Joint Ventures (Textual) [Abstract] |  |  |
Industrial property owned | 738 |  |
Gross Leasable Area (GLA) of industrial property owned | 66,100,000 |  |
Investments In Joint Ventures Other (Textual) [Abstract] |  |  |
Receivables from Joint Ventures | $ 131 |  | $ 137
Fees received from joint ventures | 76 | 310 |
2003 Net Lease Joint Venture [Member] |  |  |
Investment In Joint Ventures (Textual) [Abstract] |  |  |
Ownership percentage purchased | 85.00% |  |
Industrial property owned | 6 |  |
Gross Leasable Area (GLA) of industrial property owned | 3,100,000 |  |
Investment in net lease joint venture | $ 1,044 |  |
2007 Net Lease Joint Venture [Member] |  |  |
Investment In Joint Ventures (Textual) [Abstract] |  |  |
Industrial property owned | 0 |  |
2007 Europe Joint Venture [Member] |  |  |
Investment In Joint Ventures (Textual) [Abstract] |  |  |
Ownership Percentage | 10.00% |  |

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- Definition Fees received from joint ventures. + References No definition available. + Details
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- Definition This is the acquisition of equity for a property within the 2003 Net Lease Joint Venture. + References No definition available. + Details
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