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Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of unconsolidated joint ventures (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Property, net | $ 9,212,359 | $ 9,052,105
Other assets | 717,509 | 635,838
Total assets | 9,929,868 | 9,687,943
Liabilities and partners' capital: |  |
Mortgage and other notes payable | 6,064,931 | 5,296,594
Other liabilities | 390,211 | 405,052
Company's capital | 1,893,278 | 2,188,057
Outside partners' capital | 1,581,448 | 1,798,240
Total liabilities and partners' capital | 9,929,868 | 9,687,943
Investments in unconsolidated joint ventures: |  |
Company's capital | 1,893,278 | 2,188,057
Basis adjustment | (543,403) | (562,021)
Investments in unconsolidated joint ventures | 1,349,875 | 1,626,036
Assets—Investments in unconsolidated joint ventures | 1,465,174 | 1,709,522
Liabilities—Distributions in excess of investments in unconsolidated joint ventures | (115,299) | (83,486)
Investments in unconsolidated joint ventures | $ 1,349,875 | $ 1,626,036

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