v3.26.1
Document and Entity Information
Jul. 01, 2026
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001628063
Document Type 8-K
Document Period End Date Jul. 01, 2026
Entity Registrant Name SERITAGE GROWTH PROPERTIES
Entity Incorporation State Country Code MD
Entity File Number 001-37420
Entity Tax Identification Number 38-3976287
Entity Address, Address Line One 500 Fifth Avenue
Entity Address, Address Line Two Suite 1530
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10110
City Area Code 212
Local Phone Number 355-7800
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Class 160 A Common Shares Of Beneficial Interest Par Value 0.01 Per Share [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Class A common shares of beneficial interest, par value $0.01 per share
Trading Symbol SRG
Security Exchange Name NYSE
Series A Preferred Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 7.00% Series A cumulative redeemable preferred shares of beneficial interest, par value $0.01 per share
Trading Symbol SRG-PA
Security Exchange Name NYSE