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Schedule III - Real Estate and Accumulated Depreciation Reconciliation of Investment Properties (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance, beginning of year | $ 3,500,917 | $ 3,133,966 | $ 3,109,433
Acquisition of new properties | 110,444 | 316,428 | 0
Improvements | 79,070 | 89,426 | 104,060
Property classified as held for sale | (61,965) | 0 | 0
Disposals | (77,017) | (38,903) | (79,527)
Balance, end of year | 3,551,449 | $ 3,500,917 | $ 3,133,966
Aggregate cost of investment properties for federal income tax purpose | $ 3,700,000 |  |

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- Definition SEC Schedule, 12-28, Real Estate Companies, Investment In Real Estate, Excluding Held-For-Sale + References No definition available. + Details
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- Definition SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Held For Sale + References No definition available. + Details
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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 https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
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- Definition Amount of real estate investments sold 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 FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 4)) -URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
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- Definition Amount of increase in real estate investments related to improvements 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 FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 4)) -URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
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- Definition Amount of increase in real estate investments from acquisitions other than through foreclosure 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 FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 4)) -URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
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