CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
REVENUE
Rental income	$ 17,055	$ 15,060
Management and other fee income	$ 567	$ 5,719
Type of Revenue [Extensible List]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]
Total revenue	$ 17,622	$ 20,779
EXPENSES
Property operating	16,339	21,282
Abandoned project costs	5,732
Real estate taxes	3,935	6,128
Depreciation and amortization	13,118	14,471
General and administrative	30,021	45,988
Total expenses	69,145	87,869
Gain on sale of real estate, net	10,678	96,214
Gain on sale of interest in unconsolidated entities	2,042	6,407
Impairment of real estate assets	(87,536)	(107,043)
Equity in loss of unconsolidated entities	(3,154)	(55,857)
Interest and other income (expense), net	2,513	17,067
Interest expense	(24,972)	(44,571)
Loss before income taxes	(151,952)	(154,873)
Provision for income taxes	(1,584)	(38)
Net loss	(153,536)	(154,911)
Preferred dividends	(4,900)	(4,900)
Net loss attributable to Seritage common shareholders	$ (158,436)	$ (159,811)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (2.82)	$ (2.85)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (2.82)	$ (2.85)
Weighted average Class A common shares outstanding - Basic	56,255	56,151
Weighted average Class A common shares outstanding - Diluted	56,255	56,151