Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investments in unconsolidated joint ventures:
Assets—Investments in unconsolidated joint ventures	$ 1,540,826	$ 1,519,697
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(107,156)	(107,902)
Joint Venture
Assets:
Property, net	9,414,762	9,424,591
Other assets	752,159	772,116
Total assets	10,166,921	10,196,707
Liabilities and partners' capital:
Mortgage and other notes payable	6,125,614	6,144,685
Other liabilities	495,817	565,412
Company's capital	1,916,313	1,904,145
Outside partners' capital	1,629,177	1,582,465
Total liabilities and partners' capital	10,166,921	10,196,707
Investments in unconsolidated joint ventures:
Company's capital	1,916,313	1,904,145
Basis adjustment	(482,643)	(492,350)
Investments in unconsolidated joint ventures	1,433,670	1,411,795
Assets—Investments in unconsolidated joint ventures	1,540,826	1,519,697
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(107,156)	(107,902)
Investments in unconsolidated joint ventures	$ 1,433,670	$ 1,411,795