Summary of Significant Accounting Policies - Noncontrolling Interests, Simon Property Group, Inc. (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Limited partners' interests in the Operating Partnership	$ 477,292	$ 431,784
Nonredeemable noncontrolling interests in properties, net	14,241	1,090
Total noncontrolling interests reflected in equity	$ 491,533	$ 432,874

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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+ Details