Investment in Unconsolidated Real Estate Ventures - Summary of Financial Position of Real Estate Ventures (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Net property	$ 840,276	$ 834,367
Other assets	344,105	342,002
Other liabilities	287,986	290,071
Debt, net	601,120	585,068
Equity	295,275	301,230
MAP Venture
Schedule of Equity Method Investments [Line Items]
Net property	189,953	192,582
Other assets	256,904	256,453
Other liabilities	266,798	266,200
Debt, net	181,768	181,525
Equity	(1,709)	1,310
Other
Schedule of Equity Method Investments [Line Items]
Net property	650,323	641,785
Other assets	87,201	85,549
Other liabilities	21,188	23,871
Debt, net	419,352	403,543
Equity	$ 296,984	$ 299,920