Other Assets, Net and Accounts Payable and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Assets, Net:
Lease intangibles, net (Note 6)	$ 125,050	$ 127,571
Deferred charges, net	27,730	24,589
Prepaid expenses	17,927	16,838
Other receivables	5,719	11,356
Accrued interest receivable	12,450	11,668
Deposits	4,549	6,296
Due from seller	4,300	4,300
Deferred tax assets	2,141	2,096
Derivative financial instruments (Note 8)	9,958	4,402
Due from related parties	2,397	1,479
Corporate assets	2,287	2,369
Income taxes receivable	2,006	1,995
Other assets, net	216,514	214,959
Deferred Charges, Net:
Deferred leasing and other costs	41,985	41,020
Deferred financing costs	8,634	7,786
Deferred costs, gross	50,619	48,806
Accumulated amortization	(22,889)	(24,217)
Deferred charges, net	27,730	24,589
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	104,273	104,478
Accounts payable and accrued expenses	59,771	61,420
Deferred income	31,260	31,306
Tenant security deposits, escrow and other	10,412	10,029
Derivative financial instruments (Note 8)	1,238	1,467
Income taxes payable	575	176
Other	1,561	1,176
Accounts payable and other liabilities	$ 209,090	$ 210,052