Lease Intangibles - Schedule of Estimated Aggregate Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Intangible Assets
2018 (April 1, 2018 to December 31, 2018)	$ 1,641
2019	1,932
2020	1,507
2021	1,210
2022	1,076
Thereafter	5,301
Total	12,667	$ 13,263
Intangible Liabilities
2018 (April 1, 2018 to December 31, 2018)	208
2019	269
2020	218
2021	189
2022	169
Thereafter	653
Total	$ 1,706	$ 1,776
Amortization period	6 years 1 month 6 days