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Fair Value Measurements (Details 4) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |  | 9 Months Ended
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Sep. 30, 2013 Discounted Cash Flow Valuation Technique Fair value measurement on a nonrecurring basis | Sep. 30, 2013 Properties, net Fair value measurement on a nonrecurring basis Significant Unobservable Inputs (Level 3) | Sep. 30, 2013 Properties, net Contract of sale Fair value measurement on a nonrecurring basis Significant Unobservable Inputs (Level 3) | Sep. 30, 2013 Properties, net Discounted Cash Flow Valuation Technique Fair value measurement on a nonrecurring basis Significant Unobservable Inputs (Level 3) | Sep. 30, 2013 Minimum Discounted Cash Flow Valuation Technique Fair value measurement on a nonrecurring basis | Sep. 30, 2013 Maximum Discounted Cash Flow Valuation Technique Fair value measurement on a nonrecurring basis | Sep. 30, 2013 Weighted Average Discounted Cash Flow Valuation Technique Fair value measurement on a nonrecurring basis | Sep. 30, 2014 Redeemable Non-Controlling Interest Fair value measurement on a recurring basis Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value on a non-recurring basis |  |  |  |  |  |  |  |  |  |  |  |
Fair value inputs, discount rate |  |  |  |  |  |  |  |  | 10.00% | 11.00% | 10.90% | 15.50%
Assets |  |  | $ 142,702 | [1] | $ 110,499 | [2] | $ 32,203 | [3] |  |  |  |
Fair Value Inputs Terminal Capitalization Rate |  |  |  |  |  |  |  |  | 9.50% | 10.00% | 9.70% |
Fair Value Inputs Market Rent Growth Rate | 3.00% | [3] |  |  |  |  |  |  |  |  |  |
Fair Value Inputs Expense Growth Rate | 3.00% | [3] |  |  |  |  |  |  |  |  |  |
[1] | Reflects balance sheet classifications of assets at time of fair value measurement, excluding the effect of held for sale classifications.
[2] | These fair value measurements were developed as a result of negotiations between us and potential, or actual, purchasers of the properties.
[3] | Only one value applied for this unobservable input.

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- Definition Represents the expense growth rate , used as an input to measure the fair value. + References No definition available. + Details
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- Definition Represents the market rent growth rate, used as an input to measure fair value. + References No definition available. + Details
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- Definition Represents the terminal capitalization rate, used as an input to measure the fair value. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + 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=36462937&loc=d3e19207-110258 + Details
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