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The restricted stock vests one year after the award."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 752 common shares acquired through the reinvestment of dividends received on common shares Q2 through Q4 2018 and Q1 of 2019 under the Company's Stock Incentive Plan."}],"balance_after":34180,"source":{"system":"sec-edgar","filing":"0001179110-19-005871","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1063761/000117911019005871/edgar.xml","form_type":"4"}},{"id":3939433,"issuer":{"id":2946,"kind":"organization","name":"SIMON PROPERTY GROUP INC."},"owners":[{"id":34197,"kind":"person","name":"LEIBOWITZ REUBEN S","position":1,"cik":"0001210982","reported_name":"LEIBOWITZ REUBEN S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-10T19:01:15.000Z","date":"2018-05-08","kind":"grant","acquired":true,"shares":1305,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Non-cash compensation - Award of restricted stock under the Simon Property Group, L.P. 1998 Stock Incentive Plan (as amended and restated April 4, 2014).  The restricted stock vests one year after the award."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Non-cash compensation - Award of restricted stock under the Simon Property Group, L.P. 1998 Stock Incentive Plan (as amended and restated April 4, 2014).  The restricted stock vests one year after the award."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 691 common shares acquired through the reinvestment of dividends received on common shares Q2 through Q4 2017 and Q1 of 2018 under the Company's Stock Incentive Plan."}],"balance_after":32309,"source":{"system":"sec-edgar","filing":"0001179110-18-006526","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1063761/000117911018006526/edgar.xml","form_type":"4"}},{"id":4325318,"issuer":{"id":2946,"kind":"organization","name":"SIMON PROPERTY GROUP INC."},"owners":[{"id":34197,"kind":"person","name":"LEIBOWITZ REUBEN S","position":1,"cik":"0001210982","reported_name":"LEIBOWITZ REUBEN S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-11T18:24:05.000Z","date":"2017-05-10","kind":"grant","acquired":true,"shares":1035,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Non-cash compensation- Award of restricted stock under the Simon Property Group, L.P. 1998 Stock Incentive Plan (as amended and restated April 4, 2014).  The restricted stock vests on May 10, 2018."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Non-cash compensation- Award of restricted stock under the Simon Property Group, L.P. 1998 Stock Incentive Plan (as amended and restated April 4, 2014).  The restricted stock vests on May 10, 2018."}],"balance_after":30313,"source":{"system":"sec-edgar","filing":"0001179110-17-007061","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1063761/000117911017007061/edgar.xml","form_type":"4"}},{"id":4368549,"issuer":{"id":2946,"kind":"organization","name":"SIMON PROPERTY GROUP INC."},"owners":[{"id":34197,"kind":"person","name":"LEIBOWITZ REUBEN S","position":1,"cik":"0001210982","reported_name":"LEIBOWITZ REUBEN S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-03-30T20:07:19.000Z","date":"2017-03-28","kind":"purchase","acquired":true,"shares":1400,"price":166,"value":232400.0,"ownership":{"direct":false,"nature":"By trusts"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were acquired by, and are held in, certain trusts previously formed for the benefit of the reporting person's grandchildren. The reporting person's spouse is a trustee of each such trust. The reporting person disclaims beneficial ownership of these securities, and the inclusion of shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purposes."}],"balance_after":1400,"source":{"system":"sec-edgar","filing":"0001179110-17-005245","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1063761/000117911017005245/edgar.xml","form_type":"4"}},{"id":4450301,"issuer":{"id":2946,"kind":"organization","name":"SIMON PROPERTY GROUP INC."},"owners":[{"id":34197,"kind":"person","name":"LEIBOWITZ REUBEN S","position":1,"cik":"0001210982","reported_name":"LEIBOWITZ REUBEN S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-14T22:27:41.000Z","date":"2016-12-28","kind":"gift","acquired":false,"shares":2500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a gift to the Leibowitz Foundation, as indicated in footnote (3)."}],"balance_after":29149,"source":{"system":"sec-edgar","filing":"0001179110-17-002365","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1063761/000117911017002365/edgar.xml","form_type":"5"}}]}