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Investments in Real Estate Partnerships - Schedule of Revenues and Expenses for Investments in Real Estate Partnerships (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Schedule of Equity Method Investments [Line Items] |  |  |
Total revenues | $ 1,166,161 | $ 1,016,175 | $ 1,133,138
Operating expenses: |  |  |
Depreciation and amortization | 303,331 | 345,900 | 374,283
Operating and maintenance | 184,553 | 170,073 | 169,909
General and administrative | 78,218 | 75,001 | 74,984
Real estate taxes | 142,129 | 143,004 | 136,236
Other operating expenses | 5,751 | 12,642 | 7,814
Total operating expenses | 713,982 | 746,620 | 763,226
Other expense (income): |  |  |
Interest expense, net | 145,170 | 156,678 | 151,264
Gain on sale of real estate | (91,119) | (67,465) | (24,242)
Early extinguishment of debt |  | 21,837 | 11,982
Provision for impairment | 84,389 | 18,536 | 54,174
Total other expense (income) | 132,977 | 256,407 | 187,610
Net income | 366,288 | 47,317 | 243,258
Real Estate Partnership |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Total revenues | 416,222 | 381,094 | 417,053
Operating expenses: |  |  |
Depreciation and amortization | 94,026 | 101,590 | 97,844
Operating and maintenance | 66,061 | 65,146 | 65,811
General and administrative | 5,837 | 5,870 | 6,201
Real estate taxes | 54,618 | 53,747 | 53,410
Other operating expenses | 3,624 | 3,126 | 2,709
Total operating expenses | 224,166 | 229,479 | 225,975
Other expense (income): |  |  |
Interest expense, net | 58,109 | 66,786 | 75,449
Gain on sale of real estate | (75,162) | (7,146) | (64,798)
Early extinguishment of debt | 0 | 554 | 0
Provision for impairment | 9,833 | 0 | 9,223
Total other expense (income) | (7,220) | 60,194 | 19,874
Net Income [Member] |  |  |
Other expense (income): |  |  |
Net income | 199,276 | 91,421 | 171,204
Unconsolidated Properties [Member] |  |  |
Other expense (income): |  |  |
Income (Loss) from Equity Method Investments | $ 47,086 | $ 34,169 | $ 60,956

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