CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
REVENUE
Rental income	$ 29,084	$ 31,146
Management and other fee income	$ 1,821	$ 135
Type of Revenue [Extensible List]	Management and Other Fee Income [Member]	Management and Other Fee Income [Member]
Total revenue	$ 30,905	$ 31,281
EXPENSES
Property operating	11,032	10,643
Real estate taxes	8,150	10,155
Depreciation and amortization	11,934	13,142
General and administrative	9,092	11,232
Total expenses	40,208	45,172
(Loss)/gain on sale of real estate, net	(1,015)	24,208
Impairment of real estate assets	(991)	(1,700)
Equity in loss of unconsolidated entities	(33,076)	(1,162)
Interest and other income	11	7,624
Interest expense	(22,588)	(26,150)
Loss before taxes	(66,962)	(11,071)
(Provision)/benefit from income taxes	(25)	138
Net loss	(66,987)	(10,933)
Net loss attributable to non-controlling interests	14,782	3,213
Net loss attributable to Seritage	(52,205)	(7,720)
Preferred dividends	(1,225)	(1,225)
Net loss attributable to Seritage common shareholders	$ (53,430)	$ (8,945)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (1.22)	$ (0.23)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (1.22)	$ (0.23)
Weighted average Class A common shares outstanding - Basic	43,634	39,477
Weighted average Class A common shares outstanding - Diluted	43,634	39,477