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Schedule III - Consolidated Real Estate and Accumulated Depreciation - Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Investment in real estate: |  |  |
Balance, beginning of year | $ 837,641 | $ 839,058 | $ 835,837
Addition: Land, buildings and improvements | 59,654 | 28,837 | 26,444
Deduction: Properties sold | (17,699) | (28,064) | (22,441)
Deduction: Property held-for-sale |  | (2,190) |
Deduction: Impairment due to casualty loss |  |  | (782)
Balance, end of year | 879,596 | 837,641 | 839,058
Accumulated depreciation: |  |  |
Balance, beginning of year | 160,664 | 147,136 | 135,302
Addition: Depreciation | 18,471 | 17,694 | 17,941
Deduction: Impairment due to casualty loss |  |  | (352)
Deduction: Accumulated depreciation related to properties sold | (5,992) | (3,246) | (5,755)
Deduction: Accumulated depreciation related to property held-for-sale |  | (920) |
Balance, end of year | 173,143 | $ 160,664 | $ 147,136
Other disclosures |  |  |
Amount by which aggregate cost of the properties is higher for federal income tax purposes | $ 22,018 |  |

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- Definition Amount of decrease to accumulated depreciation for real estate investments held-for-sale for entities with a substantial portion of business acquiring and holding investment real estate. + References No definition available. + Details
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- Definition Amount of real estate investments held-for-sale for entities with a substantial portion of business acquiring and holding investment real estate. + References No definition available. + Details
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- Definition Amount of accumulated depreciation pertaining to real estate investments 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(Column F)) -URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
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