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Schedule III - Real Estate And Accumulated Depreciation Property - Real Estate and Accumulated Depreciation Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Real Estate and Accumulated Depreciation [Line Items] |  |  |
Construction in progress | $ 4,052 | $ 12,788 |
Aggregate cost of real estate owned | 2,410,252 |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |
Balance at beginning of period | 2,229,495 | 2,516,085 | $ 2,180,252
Acquisitions and capital improvements | 368,489 | 237,439 | 598,843
Disposals and write-offs | (397,145) | (524,029) | (263,010)
Balance at end of period | 2,200,839 | 2,229,495 | 2,516,085
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |
Balance at beginning of period | 286,330 | 348,337 | 351,389
Depreciation expense, continuing operations | 66,808 | 73,021 | 70,959
Depreciation expense, properties classified as discontinued operations | 0 | 0 | 974
Disposal and write-offs | (106,436) | (135,028) | (74,985)
Balance at end of period | $ 246,702 | $ 286,330 | $ 348,337
Building and other improvements |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |
Estimated lives used to compute depreciation | 30 years |  |
Furniture, fixtures and equipment | Minimum |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |
Estimated lives used to compute depreciation | 5 years |  |
Furniture, fixtures and equipment | Maximum |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |
Estimated lives used to compute depreciation | 15 years |  |

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- Definition Cost basis of real estate investments for federal income tax purposes for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Footnote 6 -Subsection 28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 6)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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