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CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Rental and other property revenues | $ 11,943 | $ 33,409 | $ 35,712 | $ 96,099
Property operating expenses | 5,883 | 15,945 | 19,203 | 45,919
General and administrative | 2,669 | 2,062 | 9,401 | 7,357
Interest income | 6,856 | 5,710 | 19,514 | 15,701
Mortgage and loan interest | 10,420 | 17,422 | 29,796 | 49,053
Related Parties [Member] |  |  |  |
Rental and other property revenues | 212 | 207 | 527 | 623
Property operating expenses | 237 | 231 | 741 | 689
General and administrative | 1,002 | 1,197 | 3,680 | 3,634
Interest income | 6,240 | 3,275 | 18,328 | 8,554
Mortgage and loan interest | $ 2,402 | $ 2,072 | $ 7,094 | $ 5,780

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