Real Estate Intangibles - Summary of Real Estate Intangibles Excluding those Classified as Held For Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets:
Gross historical cost	$ 2,268,889	$ 2,166,470
Accumulated amortization	(1,784,900)	(1,651,656)
Net book value	483,989	514,814
Liabilities:
Below market tenant leases	71,224	70,364
Accumulated amortization	(51,400)	(47,939)
Net book value	19,824	22,425
In place lease intangibles
Assets:
Gross historical cost	2,079,917	2,001,827
Above market tenant leases
Assets:
Gross historical cost	71,892	66,663
Lease commissions
Assets:
Gross historical cost	$ 117,080	$ 97,980