Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Prepaid rent	$ 4,439	$ 4,304
Leasing commission payable	1,900	3,783
Accrued property taxes	2,710	3,490
Interest expense payable	3,289	3,013
Other liabilities	7,587	5,313
Accrued expenses and other liabilities	$ 19,925	$ 19,903