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Accruals and Other Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Accrued and Other Liabilities [Abstract] |  |  |  |  |
Beginning balance |  |  | $ 11,030 | $ 4,154 | $ 4,154
Income attributable to noncontrolling interests | $ 2,545 | $ 2,214 | 3,442 | 3,097 | 15,375
Distributions made |  |  | (8,927) | $ (3,840) | (8,865)
Other |  |  | (716) |  | 366
Ending balance | $ 4,829 |  | $ 4,829 |  | $ 11,030

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