Other Assets and Intangibles - Components of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Intangible assets:
Total intangible assets, net	$ 182,407	$ 241,598
Other assets:
Prepaid expenses	10,806	26,842
Other assets	3,869	6,274
Deposits	5,076	5,965
Deferred charges, net	7,901	4,731
Total other assets, net	210,059	285,410
Below-market leases, net (other liabilities)	127,513	147,941
In-Place Leases, Net [Member]
Intangible assets:
Total intangible assets, net	71,809	99,600
Above-Market Leases, Net [Member]
Intangible assets:
Total intangible assets, net	14,391	20,405
Lease Origination Costs [Member]
Intangible assets:
Total intangible assets, net	10,029	12,931
Tenant Relationships, Net [Member]
Intangible assets:
Total intangible assets, net	$ 86,178	$ 108,662