CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
REVENUE
Rental income	$ 4,526	$ 4,166	$ 8,983	$ 9,891
Management and other fee income	$ 127	$ 50	$ 269	$ 98
Type of Revenue [Extensible List]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]
Total revenue	$ 4,653	$ 4,216	$ 9,252	$ 9,989
EXPENSES
Property operating	3,237	4,160	6,145	7,833
Real estate taxes	692	1,238	1,645	2,631
Depreciation and amortization	2,040	1,212	4,115	6,483
General and administrative	6,172	6,874	21,865	16,066
Total expenses	12,141	13,484	33,770	33,013
Gain on sale of real estate, net	1,967	2,034	8,903	3,173
Loss on sale of interests in unconsolidated entities	(1,417)	0	(1,417)	0
Impairment of real estate assets	(18,000)	(86,388)	(18,000)	(87,536)
Equity in income (loss) of unconsolidated entities	756	(566)	(7,172)	(187)
Interest and other income (expense), net	930	717	1,790	2,140
Interest expense	(5,139)	(6,282)	(10,369)	(13,293)
Loss before income taxes	(28,391)	(99,753)	(50,783)	(118,727)
Benefit (provision) for income taxes	(115)	(1,474)	75	(1,485)
Net loss	(28,506)	(101,227)	(50,708)	(120,212)
Preferred dividends	(1,225)	(1,225)	(2,450)	(2,450)
Net loss attributable to Seritage common shareholders	$ (29,731)	$ (102,452)	$ (53,158)	$ (122,662)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (0.53)	$ (1.82)	$ (0.94)	$ (2.18)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (0.53)	$ (1.82)	$ (0.94)	$ (2.18)
Weighted average Class A common shares outstanding - Basic	56,324	56,268	56,304	56,242
Weighted average Class A common shares outstanding - Diluted	56,324	56,268	56,304	56,242