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Summary of Significant Accounting Policies - Schedule Operating Partnership's VIEs (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Variable Interest Entity [Line Items]    
Assets $ 9,184,005 $ 8,853,571
Liabilities 6,738,745 6,022,601
Operating Partnership's VIEs    
Variable Interest Entity [Line Items]    
Assets 648,775 284,120
Liabilities 501,499 251,241
Property, net | Operating Partnership's VIEs    
Variable Interest Entity [Line Items]    
Assets 551,062 254,071
Other assets | Operating Partnership's VIEs    
Variable Interest Entity [Line Items]    
Assets 97,713 30,049
Mortgage notes payable | Operating Partnership's VIEs    
Variable Interest Entity [Line Items]    
Liabilities 420,233 219,140
Other liabilities | Operating Partnership's VIEs    
Variable Interest Entity [Line Items]    
Liabilities $ 81,266 $ 32,101