Goodwill and Other Intangibles - Intangible Assets and Liabilities Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortizable Intangible Assets
Accumulated Amortization	$ (1,517,987)	$ (1,446,787)
Indefinite Lived Intangible Assets Including Goodwill
Total intangible assets, gross	4,012,116	4,048,372
Total intangible assets, net	2,494,129	2,601,585
Amortizable Intangible Liabilities
Less: accumulated amortization	114,184	105,908
Indefinite Lived Intangible Liabilities
Total intangible liabilities, gross	(288,950)	(289,194)
Total intangible liabilities, net	(174,766)	(183,286)
Below-market purchase option
Indefinite Lived Intangible Liabilities
Indefinite-lived intangible liabilities	(16,711)	(16,711)
Below-market rent
Amortizable Intangible Liabilities
Finite-lived intangible liabilities, gross	(272,239)	(272,483)
Less: accumulated amortization	114,184	105,908
Net amortizable intangible liabilities	(158,055)	(166,575)
Goodwill
Indefinite Lived Intangible Assets Including Goodwill
Indefinite-lived intangible assets	891,464	901,529
Contracts including internal software development costs
Amortizable Intangible Assets
Gross Carrying Amount	23,636	23,528
Accumulated Amortization	(22,898)	(22,263)
Net Carrying Amount	738	1,265
Internal-use software development costs
Amortizable Intangible Assets
Gross Carrying Amount	19,661	19,553
Accumulated Amortization	(18,923)	(18,682)
Net Carrying Amount	738	871
Trade name
Amortizable Intangible Assets
Gross Carrying Amount	3,975	3,975
Accumulated Amortization	(3,975)	(3,581)
Net Carrying Amount	0	394
Lease intangibles
Amortizable Intangible Assets
Gross Carrying Amount	3,097,016	3,123,315
Accumulated Amortization	(1,495,089)	(1,424,524)
Net Carrying Amount	1,601,927	1,698,791
In-place lease
Amortizable Intangible Assets
Gross Carrying Amount	2,274,546	2,279,905
Accumulated Amortization	(983,304)	(934,663)
Net Carrying Amount	1,291,242	1,345,242
Above-market rent
Amortizable Intangible Assets
Gross Carrying Amount	822,470	843,410
Accumulated Amortization	(511,785)	(489,861)
Net Carrying Amount	$ 310,685	$ 353,549