Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Property, net	$ 6,694,579	$ 6,643,513
Total assets	9,184,005	8,853,571
Liabilities and partners' capital:
Mortgage notes payable	4,560,810	4,392,599
Total liabilities and equity	9,184,005	8,853,571
Investment in unconsolidated joint ventures:
Assets—Investments in unconsolidated joint ventures	1,340,647	1,519,697
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(108,381)	(107,902)
Joint venture
Liabilities and partners' capital:
Company's capital	1,711,944	1,904,145
Investment in unconsolidated joint ventures:
Company's capital	1,711,944	1,904,145
Basis adjustment	(479,678)	(492,350)
Investments in unconsolidated joint ventures	1,232,266	1,411,795
Assets—Investments in unconsolidated joint ventures	1,340,647	1,519,697
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(108,381)	(107,902)
Investments in unconsolidated joint ventures	1,232,266	1,411,795
Joint venture | Total
Assets:
Property, net	8,721,551	9,424,591
Other Assets	774,583	772,116
Total assets	9,496,134	10,196,707
Liabilities and partners' capital:
Mortgage notes payable	5,942,478	6,144,685
Other Liabilities	397,483	565,412
Company's capital	1,711,944	1,904,145
Outside partners' capital	1,444,229	1,582,465
Total liabilities and equity	9,496,134	10,196,707
Investment in unconsolidated joint ventures:
Company's capital	$ 1,711,944	$ 1,904,145