Summary of Significant Accounting Policies - Schedule of variable interest entities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Property, net	$ 6,517,852	$ 6,694,579
Total assets	9,669,584	9,184,005
Mortgage notes payable	4,534,585	4,560,810
Total liabilities	6,672,279	6,738,745
Operating Partnership
Variable Interest Entity [Line Items]
Property, net	520,900	551,062
Other assets	93,215	97,713
Total assets	614,115	648,775
Mortgage notes payable	420,254	420,233
Other liabilities	78,489	81,266
Total liabilities	$ 498,743	$ 501,499