Other Assets, net - Components of Other Assets, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018	Jun. 30, 2018
Intangible assets:
Total intangible assets, net	$ 62,132		$ 77,419
Operating lease ROU assets	21,961	$ 22,000	0
Notes receivable	19,670		19,675	$ 19,670
Other assets:
Prepaid expenses	6,731		5,372
Other assets	3,023		3,612
Deposits	4,102		4,384
Deferred charges, net	4,700		5,767
Total other assets, net	122,319		116,229
In-Place Leases, Net [Member]
Intangible assets:
Total intangible assets, net	24,411		30,703
Above-Market Leases, Net [Member]
Intangible assets:
Total intangible assets, net	4,178		6,833
Lease Origination Costs [Member]
Intangible assets:
Total intangible assets, net	3,328		4,045
Tenant Relations, Net [Member]
Intangible assets:
Total intangible assets, net	$ 30,215		$ 35,838