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Investment In Real Estate - Quantitative Information About Level 3 Fair Value Measurements (Details) (Unobservable Inputs (Level 3) [Member], USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2012 sqft Property
Discounted Cash Flow [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Number Of Industrial Properties | 1 |
Fair Value of Property | $ 585 |
Unobservable Inputs, Discount Rate | 11.75% |
Unobservable Inputs, Market Rent Growth Rate | 2.00% |
Unobservable Inputs, Expense Growth Rate | 2.00% |
Unobservable Inputs, Rental Rates Per Square Foot | 4.25 | [1]
Unobservable Inputs, Terminal Capitalization Rate | 10.00% |
Gross Leaseable Area | 10,000 |
Third Party Pricing [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Number Of Industrial Properties | 14 |
Fair Value of Property | $ 36,175 | [2]
Gross Leaseable Area | 2,100,000 |
[1] | Estimates for market rental rates upon stabilization of the property.
[2] | The fair value for the properties is based upon the value of either a third party purchase contract or third party letters of intent, both of which are subject to our corroboration for reasonableness. Certain of the properties are included in portfolios whereby the letter of intent pricing relates to the respective portfolio. The estimated purchase price for the portfolio was allocated to the individual properties within the portfolio based upon their relative fair value.

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- Definition Fair Value Inputs, Expense Growth Rate + References No definition available. + Details
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- Definition Fair Value Inputs, Market Rent Growth Rate + References No definition available. + Details
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- Definition Fair Value Inputs, Terminal Capitalization Rate + References No definition available. + Details
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- Definition Gross Leaseable Area + References No definition available. + Details
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- Definition Number Of Industrial Properties + References No definition available. + Details
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- Definition The fair value of a property based on Level 3 fair value measurements. + References No definition available. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Cost of construction of real property stated is a price per square foot, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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