Investments in Unconsolidated Joint Ventures - Combined Condensed Balance Sheets of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Assets:
Property, net	$ 6,517,852		$ 6,694,579
Total assets	9,669,584		9,184,005
Liabilities and partners' capital:
Mortgage notes payable	4,534,585		4,560,810
Total liabilities and equity	9,669,584		9,184,005
Investments in unconsolidated joint ventures:
Assets—Investments in unconsolidated joint ventures	1,356,426		1,340,647
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(119,118)		(108,381)
Liabilities	6,672,279		6,738,745
Joint Venture
Liabilities and partners' capital:
Company's capital	1,709,598		1,711,944
Investments in unconsolidated joint ventures:
Company's capital	1,709,598		1,711,944
Basis adjustment	(472,290)		(479,678)
Investments in unconsolidated joint ventures	1,237,308		1,232,266
Assets—Investments in unconsolidated joint ventures	1,356,426		1,340,647
Liabilities—Distributions in excess of investments in unconsolidated joint ventures	(119,118)		(108,381)
Investments in unconsolidated joint ventures	1,237,308		1,232,266
Amortization of difference between cost of investments and book value of underlying equity	2,243	$ 3,999
Joint Venture | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Assets:
Property, net	8,819,934		8,721,551
Other assets	789,122		774,583
Total assets	9,609,056		9,496,134
Liabilities and partners' capital:
Mortgage notes payable	6,030,109		5,942,478
Other liabilities	385,794		397,483
Company's capital	1,709,598		1,711,944
Outside partners' capital	1,483,555		1,444,229
Total liabilities and equity	9,609,056		9,496,134
Investments in unconsolidated joint ventures:
Company's capital	$ 1,709,598		$ 1,711,944