Lease Intangible Assets and Liabilities - Summary of Lease Intangible Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Below Market Lease Net [Abstract]
Gross Liability	$ 16,816	$ 19,720
Accumulated Amortization	(4,963)	(7,439)
Balance	$ 11,853	$ 12,281

Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

No definition available.

Name:	us-gaap_BelowMarketLeaseAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant