CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
REVENUE
Rental income	$ 15,060	$ 104,609	$ 115,651
Management and other fee income	$ 5,719	$ 2,446	$ 1,032
Type of Revenue [Extensible List]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]
Total revenue	$ 20,779	$ 107,055	$ 116,683
EXPENSES
Property operating	21,282	41,770	45,007
Real estate taxes	6,128	23,950	35,256
Depreciation and amortization	14,471	41,114	51,199
General and administrative	45,988	47,634	41,949
Litigation settlement		35,533
Total expenses	87,869	190,001	173,411
Gain on sale of real estate, net	96,214	211,936	221,681
Gain (loss) on sale of interest in unconsolidated entities	6,407	(677)
Impairment of real estate assets	(107,043)	(126,887)	(95,826)
Equity in loss of unconsolidated entities	(55,857)	(72,080)	(9,226)
Interest and other income, net	17,067	37,753	9,285
Interest expense	(44,571)	(86,730)	(107,975)
Loss before income taxes	(154,873)	(119,631)	(38,789)
Provision for income taxes	(38)	(466)	(196)
Net loss	(154,911)	(120,097)	(38,985)
Net loss attributable to non-controlling interests		46,152	10,836
Net loss attributable to Seritage	(154,911)	(73,945)	(28,149)
Preferred dividends	(4,900)	(4,900)	(4,900)
Net loss attributable to Seritage common shareholders	$ (159,811)	$ (78,845)	$ (33,049)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (2.85)	$ (1.59)	$ (0.78)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (2.85)	$ (1.59)	$ (0.78)
Weighted average Class A common shares outstanding - Basic	56,151	49,729	42,393
Weighted average Class A common shares outstanding - Diluted	56,151	49,729	42,393