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Schedule III - Real Estate and Accumulated Depreciation (Activity in Real Estate and Accumulated Depreciation) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Changes in real estate |  |  |
Balance at beginning of year | $ 6,102,864 | $ 9,198,799 | $ 7,650,907
Property acquisitions | 0 | 0 | 1,900,042
Improvements | 199,416 | 241,213 | 335,413
Retirements/disposals/deconsolidation | 305,461 | (2,383,912) | (687,563)
Reclassification | 0 | (953,236) | 0
Balance at end of year | 6,607,741 | 6,102,864 | 9,198,799
Aggregate cost of land, buildings and improvements before depreciation | 4,900,000 |  |
Changes in accumulated depreciation |  |  |
Balance at beginning of year | 1,968,004 | 2,039,554 | 1,896,199
Depreciation for year | 171,744 | 199,576 | 175,465
Retirements/disposals/deconsolidation | (13,667) | (203,819) | (32,110)
Reclassification | 0 | (67,307) |
Balance at end of year | $ 2,126,081 | $ 1,968,004 | $ 2,039,554

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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 -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 28 -Paragraph Column E -Footnote 6 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 970 -SubTopic 360 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column E)(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478979/970-360-S99-1 + 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 -Topic 970 -SubTopic 360 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column F)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478979/970-360-S99-1 + Details
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- Definition Amount, before accumulated depreciation, of real estate investment by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. Excludes real estate not held as investment or interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 970 -SubTopic 360 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478979/970-360-S99-1 + Details
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