Acquired Lease Intangibles - Summary of Acquired Lease Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired lease intangible assets, net	$ 6,064	$ 6,407
Acquired lease intangible liabilities, net	47,769	52,367
Above Market Tenant Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, assets	7,131	7,220
Accumulated amortization	(1,990)	(1,741)
Above Market Ground Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, assets	1,152	1,152
Accumulated amortization	(229)	(224)
Below Market Tenant Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, liabilities	101,299	102,583
Accumulated accretion	$ (53,530)	$ (50,216)