Other Assets, Net and Accounts Payable and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Other Assets, Net:
Lease intangibles, net (Note 6)	$ 114,982	$ 127,571
Deferred charges, net	27,082	24,589
Prepaid expenses	16,557	16,838
Other receivables	5,287	11,356
Accrued interest receivable	14,075	11,668
Deposits	4,543	6,296
Due from seller	4,300	4,300
Deferred tax assets	1,089	2,096
Derivative financial instruments (Note 8)	12,246	4,402
Due from related parties	1,667	1,479
Corporate assets	2,184	2,369
Income taxes receivable	3,571	1,995
Other assets, net	207,583	214,959
Deferred Charges, Net:
Deferred leasing and other costs	42,574	41,020
Deferred financing costs	8,767	7,786
Deferred costs, gross	51,341	48,806
Accumulated amortization	(24,259)	(24,217)
Deferred charges, net	27,082	24,589
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	100,038	104,478
Accounts payable and accrued expenses	53,094	61,420
Deferred income	30,824	31,306
Tenant security deposits, escrow and other	10,428	10,029
Derivative financial instruments (Note 8)	794	1,467
Income taxes payable	32	176
Other	1,971	1,176
Accounts payable and other liabilities	$ 197,181	$ 210,052