Consolidated Statements of Equity (Parenthetical) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Exchange of limited partner units, (in shares)		132,946
Stock incentive program, units, net - shares forfeited	37,976	1,081
Redemption of Limited Partner Units	316	116,072
Treasury stock purchase, shares		1,245,654
Net income attributable to preferred interests in the Operating Partnership (in dollars)	$ 479,000	$ 479,000
Net loss (gain) attributable to noncontrolling redeemable interests in properties (in dollars)	$ 897,000	$ 608,000
Simon Property Group, L.P.
Limited partner units exchanged to common units		132,946
Stock incentive program, units, net - shares forfeited	37,976	1,081
Redemption of Limited Partner Units	316	116,072
Treasury unit purchase, units		1,245,654
Issuance of common units		$ 38,148
Net income, attributable to preferred distributions on temporary equity preferred units (in dollars)	$ 479,000	479,000
Net loss (gain) attributable to noncontrolling redeemable interests in properties (in dollars)	$ 897,000	$ 608,000