CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUE
Rental income	$ 29,418	$ 27,595	$ 58,502	$ 58,741
Management and other fee income	$ 286	$ 279	$ 2,107	$ 414
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	$ 29,704	$ 27,874	$ 60,609	$ 59,155
EXPENSES
Property operating	10,801	11,286	21,833	21,929
Real estate taxes	6,425	9,061	14,575	19,216
Depreciation and amortization	10,669	13,328	22,603	26,470
General and administrative	11,093	11,990	20,185	23,222
Litigation reserve	35,000		35,000
Total expenses	73,988	45,665	114,196	90,837
Gain on sale of real estate, net	68,031	18,097	67,016	42,305
Impairment of real estate assets	(109,343)	(64,539)	(110,334)	(66,239)
Equity in loss of unconsolidated entities	(33,720)	(2,327)	(66,796)	(3,489)
Interest and other income/(expense)	99	530	110	8,154
Interest expense	(22,663)	(28,976)	(45,251)	(55,126)
Loss before income taxes	(141,880)	(95,006)	(208,842)	(106,077)
(Provision) for income taxes	(203)	(298)	(228)	(160)
Net (loss)	(142,083)	(95,304)	(209,070)	(106,237)
Net loss attributable to non-controlling interests	31,328	22,464	46,110	25,677
Net (loss) attributable to Seritage	(110,755)	(72,840)	(162,960)	(80,560)
Preferred dividends	(1,225)	(1,225)	(2,450)	(2,450)
Net loss attributable to Seritage common shareholders	$ (111,980)	$ (74,065)	$ (165,410)	$ (83,010)
Net loss per share attributable to Seritage Class A common shareholders - Basic	$ (2.56)	$ (1.73)	$ (3.79)	$ (2.02)
Net loss per share attributable to Seritage Class A common shareholders - Diluted	$ (2.56)	$ (1.73)	$ (3.79)	$ (2.02)
Weighted average Class A common shares outstanding - Basic	43,677	42,772	43,656	41,134
Weighted average Class A common shares outstanding - Diluted	43,677	42,772	43,656	41,134