Other Assets and Intangibles, net - Components of Other Assets and Intangibles (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Intangible assets:
Total intangible assets, net	$ 90,418	$ 58,021
Operating lease ROU assets	20,604	21,792
Notes receivable	0	7,541	$ 19,675
Other assets:
Prepaid expenses	7,416	6,104
Other assets	2,348	2,959
Deposits	3,767	4,087
Deferred charges, net	6,137	8,127
Total other assets, net	130,690	108,631
Below-market leases, net (other liabilities)	57,348	46,961
In-Place Leases, Net [Member]
Intangible assets:
Total intangible assets, net	56,756	25,114
Above-Market Leases, Net [Member]
Intangible assets:
Total intangible assets, net	8,387	3,193
Lease Origination Costs [Member]
Intangible assets:
Total intangible assets, net	4,974	3,720
Tenant Relationships, Net [Member]
Intangible assets:
Total intangible assets, net	$ 20,301	$ 25,994