Acquired Lease Intangibles - Summary of Estimated Net Amortization Expense of Above Market Leases And In-Place Lease Intangibles (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite Lived Intangible Assets [Line Items]
Total	$ 36,365	$ 30,383
In-place Lease Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
2017	10,087
2018	6,979
2019	5,413
2020	3,602
2021	1,947
Thereafter	2,558
Total	30,586
Net Above (Below) Market Lease Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
2017	403
2018	481
2019	417
2020	475
2021	511
Thereafter	883
Total	3,170
Above Market Ground Lease
Acquired Finite Lived Intangible Assets [Line Items]
2017	32
2018	32
2019	32
2020	32
2021	32
Thereafter	21
Total	$ 181