CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
REVENUE
Rental income	$ 33,110	$ 43,578
Management and other fee income	$ 207	$ 282
Type of Revenue [Extensible List]	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember
Total revenue	$ 33,317	$ 43,860
EXPENSES
Property operating	10,301	10,237
Real estate taxes	9,225	10,192
Depreciation and amortization	34,097	26,216
General and administrative	9,420	9,759
Total expenses	63,043	56,404
Gain on sale of real estate, net	20,788	21,261
Equity in (loss) income of unconsolidated joint ventures	(894)	1,222
Interest and other income	333	2,598
Interest expense	(21,513)	(23,454)
Loss before taxes	(31,012)	(10,917)
Provision for taxes	37	23
Net loss	(30,975)	(10,894)
Net loss attributable to non-controlling interests	10,311	3,927
Net loss attributable to Seritage	(20,664)	(6,967)
Preferred dividends	(1,225)	(1,225)
Net loss attributable to Seritage common shareholders	$ (21,889)	$ (8,192)
Net loss per share attributable to Seritage Class A and Class C common shareholders - Basic	$ (0.59)	$ (0.23)
Net loss per share attributable to Seritage Class A and Class C common shareholders - Diluted	$ (0.59)	$ (0.23)
Weighted average Class A and Class C common shares outstanding - Basic	37,232	35,671
Weighted average Class A and Class C common shares outstanding - Diluted	37,232	35,671