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Real Estate Intangibles - Summary of Real Estate Intangibles Excluding those Classified as Held For Sale (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Assets:    
Gross historical cost $ 1,990,830 $ 1,945,458
Accumulated amortization (1,543,457) (1,484,048)
Net book value 447,373 461,410
Liabilities:    
Below market tenant leases 82,084 77,985
Accumulated amortization (54,872) (52,701)
Net book value 27,212 25,284
In place lease intangibles    
Assets:    
Gross historical cost 1,846,945 1,817,580
Above market tenant leases    
Assets:    
Gross historical cost 66,354 57,203
Lease commissions    
Assets:    
Gross historical cost $ 77,531 $ 70,675