0001095651 2021-05-06 2021-05-06 0001095651 us-gaap:CommonStockMember 2021-05-06 2021-05-06 0001095651 us-gaap:SeriesDPreferredStockMember 2021-05-06 2021-05-06 0001095651 us-gaap:SeriesGPreferredStockMember 2021-05-06 2021-05-06 0001095651 star:SeriesIPreferredStockMember 2021-05-06 2021-05-06 iso4217:USD shares iso4217:USD shares 0001095651 false 8-K 2021-05-06 iStar Inc. MD 1-15371 95-6881527 1114 Avenue of the Americas 39th Floor New York NY 10036 212 930-9400 false false false false false Common Stock, $0.001 par value STAR NYSE 8.00% Series D Cumulative Redeemable Preferred Stock, $0.001 par value STAR-PD NYSE 7.65% Series G Cumulative Redeemable Preferred Stock, $0.001 par value STAR-PG NYSE 7.50% Series I Cumulative Redeemable Preferred Stock, $0.001 par value STAR-PI NYSE