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Operating Segments - Profit by Reportable Segment to Net Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Total profit from segments | $ (5,168) | $ (2,303) | $ (16,941) | $ (4,050)
General and administrative | (3,698) | (1,997) | (12,799) | (7,958)
Advisory fee to related party | (3,419) | (2,329) | (11,594) | (7,055)
Other income | 866 | 483 | 3,242 | 5,347
Interest income | 6,128 | 5,421 | 17,388 | 16,459
Interest expense | (7,057) | (7,622) | (22,476) | (26,295)
(Loss) gain on foreign currency transaction |  |  | 1,185 | 774
Loss on extinguishment of debt | (1,451) | 0 | (1,451) | 0
Income (losses) from unconsolidated joint ventures | 3,543 | 337 | 11,451 | (642)
Gain on sales or write-down of assets | 31,312 | 15,325 | 24,265 | 24,802
Income tax provision | (605) | (50) | 1,196 | (346)
Net income | 25,063 | 9,638 | 14,617 | 10,702
Operating segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total profit from segments | 4,018 | 5,066 | 13,683 | 15,954
Other non-segment items of income (expense) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation | (2,935) | (3,526) | (9,473) | (10,338)
General and administrative | (3,698) | (1,997) | (12,799) | (7,958)
Advisory fee to related party | (3,419) | (2,329) | (11,594) | (7,055)
Other income | 6,128 | 5,421 | 3,242 | 5,347
Interest income | 866 | 483 | 17,388 | 16,459
Interest expense | (7,057) | (7,622) | (22,476) | (26,295)
(Loss) gain on foreign currency transaction | (1,639) | (1,470) | 1,185 | 774
Loss on extinguishment of debt | (1,451) | 0 | (1,451) | 0
Income (losses) from unconsolidated joint ventures | 3,543 | 337 | 11,451 | (642)
Gain on sales or write-down of assets | 31,312 | 15,325 | 24,265 | 24,802
Income tax provision | (605) | (50) | 1,196 | (346)
Net income | $ 25,063 | $ 9,638 | $ 14,617 | $ 10,702

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