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Business Segments - Summary of Information for Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Summary information for the reportable segments |  |  |  |
Rental and other property revenues | $ 47,701 | $ 47,683 | $ 137,643 | $ 148,375
Property operating expenses | 18,328 | 17,455 | 54,648 | 56,384
Other operating expenses not allocated to segments | 26,002 | 96,247 | 75,593 | 172,663
Total operating expenses | 44,330 | 113,702 | 130,241 | 229,047
Proportionate property net operating income (loss) | 3,371 | (66,019) | 7,402 | (80,672)
Other items included in income before income tax | (7,907) | 82,629 | (22,177) | 402,506
Income (loss) before income tax | (4,536) | 16,610 | (14,775) | 321,834
Segment Reconciling Items [Member] |  |  |  |
Summary information for the reportable segments |  |  |  |
Rental and other property revenues | 1,746 | 1,344 | 5,036 | 4,466
Property operating expenses | 1,762 | 1,376 | 5,068 | 4,448
Total operating expenses | 1,762 | 1,376 | 5,068 | 4,448
Proportionate property net operating income (loss) | (16) | (32) | (32) | 18
Income (loss) before income tax | (16) | (32) | (32) | 18
Corporate Non-Segment [Member] |  |  |  |
Summary information for the reportable segments |  |  |  |
Rental and other property revenues |  | 7,284 |  | 30,033
Property operating expenses | 1,686 | 4,269 | 4,591 | 16,034
Other operating expenses not allocated to segments | 26,002 | 96,247 | 75,593 | 172,663
Total operating expenses | 27,688 | 100,516 | 80,184 | 188,697
Proportionate property net operating income (loss) | (27,688) | (93,232) | (80,184) | (158,664)
Other items included in income before income tax | (7,907) | 82,629 | (22,177) | 402,506
Income (loss) before income tax | (35,595) | (10,603) | (102,361) | 243,842
Development and Redevelopment [Member] | Operating Segments [Member] |  |  |  |
Summary information for the reportable segments |  |  |  |
Rental and other property revenues | 4,691 | 123 | 10,539 | 204
Property operating expenses | 2,609 | 325 | 7,326 | 901
Total operating expenses | 2,609 | 325 | 7,326 | 901
Proportionate property net operating income (loss) | 2,082 | (202) | 3,213 | (697)
Income (loss) before income tax | 2,082 | (202) | 3,213 | (697)
Operating Portfolio Segment [Member] | Operating Segments [Member] |  |  |  |
Summary information for the reportable segments |  |  |  |
Rental and other property revenues | 37,722 | 35,466 | 111,404 | 102,206
Property operating expenses | 10,745 | 10,386 | 33,426 | 31,345
Total operating expenses | 10,745 | 10,386 | 33,426 | 31,345
Proportionate property net operating income (loss) | 26,977 | 25,080 | 77,978 | 70,861
Income (loss) before income tax | 26,977 | 25,080 | 77,978 | 70,861
Other [Member] | Operating Segments [Member] |  |  |  |
Summary information for the reportable segments |  |  |  |
Rental and other property revenues | 3,542 | 3,466 | 10,664 | 11,466
Property operating expenses | 1,526 | 1,099 | 4,237 | 3,656
Total operating expenses | 1,526 | 1,099 | 4,237 | 3,656
Proportionate property net operating income (loss) | 2,016 | 2,367 | 6,427 | 7,810
Income (loss) before income tax | $ 2,016 | $ 2,367 | $ 6,427 | $ 7,810

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