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SEGMENT INFORMATION - Reconciliation of Consolidated Net Income (Loss) to Consolidated NOI (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting [Abstract] |  |  |
Net income | $ 307,326 | $ 34,529 | $ 135,472
Plus: |  |  |
Interest expense | 73,911 | 81,512 | 78,199
Interest expense - amortization of deferred financing costs | 2,904 | 2,768 | 2,498
Depreciation and amortization | 188,283 | 210,005 | 176,000
General and administrative expenses | 30,288 | 32,156 | 27,802
Equity in loss of Real Estate Ventures | 18,584 | 9,922 | 15,231
Provision for impairment | 0 | 0 | 71,707
Loss on early extinguishment of debt | 0 | 0 | 105
Less: |  |  |
Interest income | 1,939 | 2,318 | 4,703
Income tax (provision) benefit | 224 | (12) | (423)
Net gain on disposition of real estate | 289,461 | 356 | 2,932
Net gain on sale of undepreciated real estate | 201 | 2,020 | 3,040
Net gain on real estate venture transactions | 75 | 11,639 | 142,233
Gain on promoted interest in unconsolidated real estate venture | 0 | 0 | 28,283
Consolidated net operating income | $ 329,396 | $ 354,571 | $ 326,246

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