Summary of Significant Accounting Policies - Noncontrolling Interests, Simon Property Group, Inc. (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Summary of Significant Accounting Policies
Limited partners' interests in the Operating Partnership	$ 447,494	$ 448,076
Nonredeemable noncontrolling interests in properties, net	21,321	25,052
Total noncontrolling interests reflected in equity	$ 468,815	$ 473,128