Schedule of Other Assets (Details) $ in Thousands	Mar. 31, 2020 USD ($) property	Dec. 31, 2019 USD ($) property
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Investments in debt securities, net	$ 311,540	$ 316,991
Held for sale assets(1)	106,328	116,529
Investment in unconsolidated joint venture	54,629	54,778
Prepaid expenses	40,095	32,106
Rent and other receivables, net	25,048	25,244
ROU lease assets — operating and finance, net	20,613	13,768
Investments in equity securities	16,734	16,650
Corporate fixed assets, net	9,363	9,825
Deferred leasing costs, net	7,486	7,427
Amounts deposited and held by others	2,731	1,348
Deferred financing costs, net	2,172	2,765
Derivative instruments (Note 7)	22	1,643
Other	6,092	6,192
Total	$ 602,853	$ 605,266
Number Of Real Estate Properties Classified As Held-For-Sale | property	436	478