Other Assets, Net and Accounts Payable and Other Liabilities - Schedule of other assets and other liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Assets, Net:
Lease intangibles, net (Note 6)	$ 100,732	$ 116,820
Deferred charges, net	30,488	28,746
Prepaid expenses	17,468	18,873
Note receivable accrued interest	13,917	9,872
Due from seller	3,682	3,682
Income taxes receivable	2,433	1,755
Other receivables	2,058	3,996
Deposits	1,728	1,853
Corporate assets, net	1,302	1,565
Derivative financial instruments (Note 8)	1	2,583
Deferred tax assets		913
Other assets, net	173,809	190,658
Deferred Charges, Net:
Deferred leasing and other costs	57,533	49,081
Deferred financing costs related to line of credit	11,341	10,051
Deferred costs, gross	68,874	59,132
Accumulated amortization	(38,386)	(30,386)
Deferred charges, net	30,488	28,746
Accounts Payable and Other Liabilities:
Derivative financial instruments (Note 8)	$ 90,139	$ 39,061
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Lease intangibles, net (Note 6)	$ 76,434	$ 82,926
Accounts payable and accrued expenses	53,031	68,838
Deferred income	31,842	33,682
Tenant security deposits, escrow and other	12,178	12,590
Lease liability - finance leases, net (Note 11)	6,287	77,657
Accounts payable and other liabilities	$ 269,911	$ 314,754