Investments in Unconsolidated Entities and International Investments - European Investments (Details) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022 USD ($) property $ / shares shares	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) property	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) property $ / shares shares	Dec. 31, 2021 USD ($) property	Dec. 31, 2020 USD ($) property	Jan. 01, 2021 USD ($)
Investment in Unconsolidated Entities
Total assets	$ 33,011,274				$ 33,777,379				$ 33,011,274	$ 33,777,379
Total liabilities	29,187,383				29,376,654				29,187,383	29,376,654
Noncontrolling interests	473,128				491,533				473,128	491,533
Total revenue	1,399,898	$ 1,315,786	$ 1,279,842	$ 1,295,922	1,326,138	$ 1,296,554	$ 1,254,146	$ 1,239,951	5,291,447	5,116,789	$ 4,607,503
Operating income before other items	684,205	652,196	626,761	620,391	591,533	612,324	604,723	604,612	2,583,553	2,413,190	1,971,809
Consolidated Net Income	772,748	$ 621,847	$ 569,480	$ 488,310	573,730	$ 778,648	$ 705,869	510,460	2,452,385	2,568,707	$ 1,277,324
Klepierre
Investment in Unconsolidated Entities
Investment, in equity	$ 1,561,112				$ 1,661,943				$ 1,561,112	$ 1,661,943
European Joint Venture | Designer Outlet properties
Investment in Unconsolidated Entities
Number of properties | property	11				11				11	11	10
European Joint Venture | Designer Outlet properties | Minimum
Investment in Unconsolidated Entities
Ownership interest (as a percent)	23.00%								23.00%
European Joint Venture | Designer Outlet properties | Maximum
Investment in Unconsolidated Entities
Ownership interest (as a percent)	94.00%								94.00%
European Property Management and Development | Designer Outlet properties
Investment in Unconsolidated Entities
Ownership interest (as a percent)	50.00%								50.00%
Europe | Klepierre
Investment in Unconsolidated Entities
Total assets	$ 16,016,137				$ 18,137,100				$ 16,016,137	$ 18,137,100
Total liabilities	10,074,502				11,854,151				10,074,502	11,854,151
Noncontrolling interests	$ 1,226,734				1,320,001				1,226,734	1,320,001
Total revenue									1,308,409	1,240,277	$ 1,306,221
Operating income before other items									590,829	380,470	327,331
Consolidated Net Income									581,075	848,104	211,153
Our Share of Net Income									116,084	164,575	36,832
Amortization of Excess Investment									$ (13,937)	(19,444)	(10,289)
Europe | Outlet Center In Ochtrup
Investment in Unconsolidated Entities
Investment, in equity												$ 48,700
Non-cash gain on remeasurement of equity interest to fair value								$ 3,700
Mortgage debt assumed												$ 47,100
Europe | Designer Outlet properties
Investment in Unconsolidated Entities
Number of properties consolidated by entity | property	7								7
Europe | Klepierre
Investment in Unconsolidated Entities
Shares owned | shares	63,924,148								63,924,148
Ownership interest (as a percent)	22.40%								22.40%
Quoted market price per share (in dollars per share) | $ / shares	$ 23.04								$ 23.04
Gain (loss) on sale or disposal of assets and interests in unconsolidated entities									$ 1,300	1,200	$ (4,300)
Non cash gain due to setup of tax basis of assets										118,400
Europe | Value Retail PLC
Investment in Unconsolidated Entities
Number of luxury outlets owned and operated | property	9								9
Number of outlets in which the entity has a minority direct ownership | property	3								3
Europe | Value Retail PLC | Deferred costs and other assets
Investment in Unconsolidated Entities
Value of equity instruments	$ 140,800				$ 140,800				$ 140,800	$ 140,800