v3.26.1
Share Based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jul. 07, 2015
Time Based Restricted Shares and Share Units [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     3 years    
Restricted Share [Member] | General and Administrative Expenses [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense recognized $ 0 $ 0 $ 0 $ 200,000  
Seritage Growth Properties 2015 Share Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares of common stock reserved for issuance         3,250,000