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Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Assets: |  |
Properties, net | $ 9,176,646 | $ 6,334,442
Other assets | 646,943 | 507,718
Total assets | 9,823,589 | 6,842,160
Liabilities and partners' capital: |  |
Mortgage notes payable | 5,237,130 | 3,607,588
Other liabilities | 431,838 | 355,634
Company's capital | 2,274,914 | 1,585,796
Outside partners' capital | 1,879,707 | 1,293,142
Total liabilities and partners' capital | 9,823,589 | 6,842,160
Investments in unconsolidated joint ventures: |  |
Company's capital | 2,274,914 | 1,585,796
Basis adjustment | (599,268) | (77,701)
Investments in unconsolidated joint ventures | 1,675,646 | 1,508,095
Assets—Investments in unconsolidated joint ventures | 1,753,524 | 1,532,552
Liabilities—Distributions in excess of investments in unconsolidated joint ventures | (77,878) | (24,457)
Investments in unconsolidated joint ventures | $ 1,675,646 | $ 1,508,095

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