CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
REVENUE
Rental income	$ 418	$ 29,084
Management and other fee income	$ 262	$ 1,821
Type of Revenue [Extensible List]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]
Total revenue	$ 680	$ 30,905
EXPENSES
Property operating	8,185	11,032
Real estate taxes	1,537	8,150
Depreciation and amortization	4,564	11,934
General and administrative	12,220	9,092
Total expenses	26,506	40,208
Gain (loss) on sale of real estate, net	12,392	(1,015)
Impairment of real estate assets	(2,576)	(991)
Equity in loss of unconsolidated entities	(36,372)	(33,076)
Interest and other income	5,585	11
Interest expense	(15,202)	(22,588)
Loss before income taxes	(61,999)	(66,962)
Benefit (provision) for income taxes	13	(25)
Net loss	(61,986)	(66,987)
Net loss attributable to non-controlling interests		14,782
Net loss attributable to Seritage	(61,986)	(52,205)
Preferred dividends	(1,225)	(1,225)
Net loss attributable to Seritage common shareholders	$ (63,211)	$ (53,430)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (1.13)	$ (1.22)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (1.13)	$ (1.22)
Weighted average Class A common shares outstanding - Basic	56,059	43,634
Weighted average Class A common shares outstanding - Diluted	56,059	43,634