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Property Dispositions and Discontinued Operations - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) Property | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Debt satisfaction gains (charges), net | $ 0 | $ (312) | $ 8,905
Aggregate net disposition price | 156,461 | 226,375 | 75,519
Aggregate gain on sale of properties | $ 24,884 | $ 57,507 | $ 24,472
Properties classified as held-for-sale (in number of properties) | Property | 2 |  |
Debt Satisfaction Gains (Charges), Net [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Debt satisfaction gains (charges), net | $ 21,504 |  |

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- Definition Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment for assets classified in discontinued operations. + References No definition available. + Details
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- Definition The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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