Goodwill and Other Intangibles - Intangible Assets and Liabilities Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Amortizable Intangible Assets
Accumulated Amortization	$ (1,627,193)	$ (1,587,815)
Indefinite Lived Intangible Assets Including Goodwill
Total intangible assets, gross	4,461,884	4,414,293
Total intangible assets, net	2,834,691	2,826,478
Amortizable Intangible Liabilities
Less: accumulated amortization	76,561	125,287
Indefinite Lived Intangible Liabilities
Total intangible liabilities, gross	(234,289)	(309,871)
Total intangible liabilities, net	(157,728)	(184,584)
Below-market purchase option
Indefinite Lived Intangible Liabilities
Indefinite-lived intangible liabilities	0	(16,711)
Below-market rent
Amortizable Intangible Liabilities
Finite-lived intangible liabilities, gross	(234,289)	(293,160)
Less: accumulated amortization	76,561	125,287
Net amortizable intangible liabilities	(157,728)	(167,873)
Goodwill
Indefinite Lived Intangible Assets Including Goodwill
Indefinite-lived intangible assets	1,036,966	1,037,412
Contracts including internal software development costs
Amortizable Intangible Assets
Gross Carrying Amount	20,342	19,812
Accumulated Amortization	(19,347)	(19,144)
Net Carrying Amount	995	668
Internal-use software development costs
Amortizable Intangible Assets
Gross Carrying Amount	20,342	19,812
Accumulated Amortization	(19,347)	(19,144)
Net Carrying Amount	995	668
Lease intangibles
Amortizable Intangible Assets
Gross Carrying Amount	3,404,576	3,357,069
Accumulated Amortization	(1,607,846)	(1,568,671)
Net Carrying Amount	1,796,730	1,788,398
In-place lease
Amortizable Intangible Assets
Gross Carrying Amount	2,597,957	2,523,318
Accumulated Amortization	(1,098,657)	(1,061,235)
Net Carrying Amount	1,499,300	1,462,083
Above-market rent
Amortizable Intangible Assets
Gross Carrying Amount	806,619	833,751
Accumulated Amortization	(509,189)	(507,436)
Net Carrying Amount	$ 297,430	$ 326,315