Other Assets, Net and Accounts Payable and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other assets, net:
Lease intangibles, net (Note 6)	$ 127,571	$ 114,584
Deferred charges, net	24,589	25,221
Prepaid expenses	16,838	14,351
Other receivables	11,356	9,514
Accrued interest receivable	11,668	9,354
Deposits	6,296	4,412
Due from seller	4,300	4,300
Deferred tax assets	2,096	3,733
Derivative financial instruments (Note 8)	4,402	2,921
Due from related parties	1,479	1,655
Corporate assets	2,369	1,241
Income taxes receivable	1,995	1,500
Other assets, net	214,959	192,786
Deferred charges, net:
Deferred leasing and other costs	41,020	40,728
Deferred financing costs	7,786	5,915
Deferred costs, gross	48,806	46,643
Accumulated amortization	(24,217)	(21,422)
Deferred charges, net	24,589	25,221
Accounts payable and other liabilities:
Lease intangibles, net (Note 6)	104,478	105,028
Accounts payable and accrued expenses	61,420	48,290
Deferred income	31,306	35,267
Tenant security deposits, escrow and other	10,029	14,975
Derivative financial instruments (Note 8)	1,467	3,590
Income taxes payable	176	1,287
Other	1,176	235
Accounts payable and other liabilities	$ 210,052	$ 208,672