Supplemental Detail for Certain Components of Consolidated Balance Sheets - Lease Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Lease intangible assets, net
Total acquired lease intangible assets, net	$ 1,969,793	$ 1,710,655
In-place leases
Lease intangible assets, net
Lease intangible assets, gross	1,978,479	1,840,704
Accumulated amortization of lease intangible assets	(695,394)	(744,375)
Above-market leases
Lease intangible assets, net
Lease intangible assets, gross	951,483	866,567
Accumulated amortization of lease intangible assets	$ (264,775)	$ (252,241)