Property Dispositions, Discontinued Operations and Real Estate Impairment - Schedule of Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets:
Real estate, at cost	$ 21,776	$ 16,590
Real estate, intangible assets	7,691	10,786
Accumulated depreciation and amortization	(10,609)	(4,069)
Rent receivable - deferred	929	1,118
Deferred leasing costs, net	975	0
Other assets	283	0
Assets held for sale	21,045	24,425
Liabilities:
Mortgage payable	0	8,373
Other	515	32
Liabilities held for sale	$ 515	$ 8,405