Per Share and Per Unit Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Per Share And Per Unit Data
Net Income attributable to Common Stockholders - Basic	$ 426,630	$ 445,860
Net Income attributable to Common Stockholders - Diluted	$ 426,630	$ 445,860
Weighted Average Shares Outstanding - Basic	328,606,352	328,514,497
Weighted Average Shares Outstanding - Diluted	328,606,352	328,514,497
Dividends
Total dividends/distributions paid per common share/unit	$ 1.65	$ 1.30
Simon Property Group, L.P.
Per Share And Per Unit Data
Net Income attributable to Common Stockholders - Basic	$ 487,993	$ 510,085
Net Income attributable to Common Stockholders - Diluted	$ 487,993	$ 510,085
Weighted Average Shares Outstanding - Basic	375,870,183	375,836,653
Weighted Average Shares Outstanding - Diluted	375,870,183	375,836,653