CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
REVENUE
Rental income	$ 86,645	$ 178,492	$ 186,421
Tenant reimbursements	26,926	62,525	62,253
Total revenue	113,571	241,017	248,674
EXPENSES
Property operating	6,329	19,700	21,510
Real estate taxes	22,355	45,653	43,681
Depreciation and amortization	65,907	262,171	177,119
General and administrative	9,956	27,902	17,469
Litigation charge			19,000
Provision for doubtful accounts		158	269
Acquisition-related expenses	18,397		73
Total expenses	122,944	355,584	279,121
Operating loss	(9,373)	(114,567)	(30,447)
Equity in (loss) income of unconsolidated joint ventures	4,772	(7,788)	4,646
Gain on sale of interests in unconsolidated joint ventures		60,302
Gain on sale of real estate		11,447
Interest and other income	136	877	266
Interest expense	(30,461)	(70,112)	(63,591)
Unrealized (loss) gain on interest rate cap	(2,933)	(701)	(1,378)
Loss before income taxes	(37,859)	(120,542)	(90,504)
Provision for income taxes	(944)	(271)	(505)
Net loss	(38,803)	(120,813)	(91,009)
Net loss attributable to non-controlling interests	16,465	47,059	39,451
Net loss attributable to Seritage	(22,338)	(73,754)	(51,558)
Preferred dividends		(245)
Net loss attributable to Seritage common shareholders	$ (22,338)	$ (73,999)	$ (51,558)
Net loss per share attributable to Class A and Class C common shareholders - Basic and diluted	$ (0.71)	$ (2.19)	$ (1.64)
Weighted average Class A and Class C common shares outstanding - Basic and diluted	31,386	33,804	31,416