Other Liabilities and Deferred Credits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Acquired below market leases, net	$ 25,952	$ 30,182
Prepaid rent and deferred revenue	11,634	8,429
Interest rate swap liability	801	10
Straight-line rent liability	7,393	4,428
Deferred rent expense and lease intangible	2,210	1,670
Deferred compensation	1,424	1,156
Deferred tax liability	93	123
Other liabilities	40	63
Total other liabilities and deferred credits, net	$ 49,547	$ 46,061