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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Rental and other property revenues | $ 120,956 | $ 126,221 | $ 119,663
Property operating expenses | 59,587 | 64,091 | 62,950
General and administrative | 12,708 | 7,691 | 7,119
Interest income | 21,645 | 18,941 | 20,453
Mortgage and loan interest | 66,063 | 66,171 | 59,362
Related Party [Member] |  |  |
Rental and other property revenues | 144 | 839 | 708
Property operating expenses | 254 | 959 | 900
General and administrative | 1,267 | 3,225 | 4,053
Interest income | 5,406 | 16,298 | 18,864
Mortgage and loan interest | $ 2,240 | $ 6,695 | $ 5,300

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