Supplemental Detail for Certain Components of Consolidated Balance Sheets - Lease Intangible Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lease intangible assets, net
Total acquired lease intangible assets, net	$ 1,508,177	$ 1,493,383
In-place leases
Lease intangible assets, net
Lease intangible assets, gross	1,679,972	1,612,153
Accumulated amortization of lease intangible assets	(690,000)	(627,676)
Above-market leases
Lease intangible assets, net
Lease intangible assets, gross	743,095	710,275
Accumulated amortization of lease intangible assets	$ (224,890)	$ (201,369)