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Summary of Significant Accounting Policies and Procedures and Newly Adopted Accounting Standards - Provision For Impairment (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) property | Dec. 31, 2018 USD ($) property | Dec. 31, 2017 USD ($) property
Provisions for Impairment |  |  |
Number of properties | 6,483 |  |
Provisions for impairment | $ | $ 40,186 | $ 26,269 | $ 14,751
Number of impaired properties held for sale | 9 | 1 | 0
Number of impaired properties held for investment | 5 | 3 | 2
Number of impaired properties sold | 37 | 40 | 24
Held for sale |  |  |
Provisions for Impairment |  |  |
Number of properties | 23 |  |

X
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- Definition The number of impaired properties held for sale. + References No definition available. + Details
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- Definition The number of impaired properties sold. + References No definition available. + Details
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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
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- References No definition available. + Details
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- Details
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