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Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Property, net | $ 8,994,424 | $ 9,052,105
Other assets | 602,553 | 635,838
Total assets | 9,596,977 | 9,687,943
Liabilities and partners' capital: |  |
Mortgage notes payable | 5,979,160 | 5,296,594
Other liabilities | 388,245 | 405,052
Company's capital | 1,822,298 | 2,188,057
Outside partners' capital | 1,407,274 | 1,798,240
Total liabilities and partners' capital | 9,596,977 | 9,687,943
Investments in unconsolidated joint ventures: |  |
Company's capital | 1,822,298 | 2,188,057
Basis adjustment | (555,691) | (562,021)
Investments in unconsolidated joint ventures | 1,266,607 | 1,626,036
Assets—Investments in unconsolidated joint ventures | 1,360,486 | 1,709,522
Liabilities—Distributions in excess of investments in unconsolidated joint ventures | (93,879) | (83,486)
Investments in unconsolidated joint ventures | $ 1,266,607 | $ 1,626,036

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