Seritage Growth Properties (SRG) 10-K 2 Mar 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Feb. 21, 2020	Jun. 28, 2019
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	SERITAGE GROWTH PROPERTIES
Entity Central Index Key	0001628063
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 1,527,000,000
Entity Interactive Data Current	Yes
Entity File Number	001-37420
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	38-3976287
Entity Address, Address Line One	500 Fifth Avenue
Entity Address, Address Line Two	Suite 1530
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10110
City Area Code	212
Local Phone Number	355-7800
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference	Portions of Seritage Growth Properties’ Proxy Statement for its 2020 Annual Meeting of Shareholders, to be held May 21, 2020, are incorporated by reference into Part III of this Annual Report on Form 10-K.
Series A Cumulative Redeemable Preferred Shares [Member]
Document Information [Line Items]
Trading Symbol	SRG-PA
Title of 12(b) Security	7.00% Series A cumulative redeemable preferred shares of beneficial interest, par value $0.01 per share
Security Exchange Name	NYSE
Class A Common Shares [Member]
Document Information [Line Items]
Trading Symbol	SRG
Entity Common Stock, Shares Outstanding		36,902,940
Title of 12(b) Security	Class A common shares of beneficial interest, par value $0.01 per share
Security Exchange Name	NYSE
Class B Common Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		1,242,536
Class C Common Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Investment in real estate
Land	$ 667,004	$ 696,792
Buildings and improvements	1,112,653	900,173
Accumulated depreciation	(147,696)	(137,947)
Real Estate Investment Property, at Cost, Total	1,631,961	1,459,018
Construction in progress	338,672	292,049
Net investment in real estate	1,970,633	1,751,067
Real estate held for sale	5,275	3,094
Investment in unconsolidated joint ventures	445,077	398,577
Cash and cash equivalents	139,260	532,857
Tenant and other receivables, net	54,470	36,926
Lease intangible assets, net	68,153	123,656
Prepaid expenses, deferred expenses and other assets, net	67,744	29,899
Total assets	2,750,612	2,876,076
Liabilities
Term loan facility, net	1,598,487	1,598,053
Accounts payable, accrued expenses and other liabilities	108,755	127,565
Total liabilities	1,707,242	1,725,618
Commitments and contingencies (Note 9)
Shareholders' Equity
Additional paid-in capital	1,149,721	1,124,504
Accumulated deficit	(418,711)	(344,132)
Total shareholders' equity	731,419	780,770
Non-controlling interests	311,951	369,688
Total equity	1,043,370	1,150,458
Total liabilities and equity	2,750,612	2,876,076
Class A Common Shares [Member]
Shareholders' Equity
Common shares	369	357
Total equity	369	357
Class B Common Shares [Member]
Shareholders' Equity
Common shares	12	13
Total equity	12	13
Series A Preferred Shares [Member]
Shareholders' Equity
Preferred shares	28	28
Total equity	$ 28	$ 28

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Class A Common Shares [Member]
Common shares, par value	$ 0.01	$ 0.01
Common shares, authorized	100,000,000	100,000,000
Common shares, outstanding	36,897,364	35,667,521
Common shares, issued	36,897,364	35,667,521
Class B Common Shares [Member]
Common shares, par value	$ 0.01	$ 0.01
Common shares, authorized	5,000,000	5,000,000
Common shares, outstanding	1,242,536	1,322,365
Common shares, issued	1,242,536	1,322,365
Series A Preferred Shares [Member]
Common shares, outstanding	2,800,000	2,800,000
Preferred shares, par value	$ 0.01	$ 0.01
Preferred shares, authorized	10,000,000	10,000,000
Preferred shares, outstanding	2,800,000	2,800,000
Preferred shares, issued	2,800,000	2,800,000
Preferred shares, liquidation preference	$ 70,000	$ 70,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
REVENUE
Rental income	$ 167,035	$ 213,558	$ 241,017
Management and other fee income	$ 1,598	$ 1,196
Type of Revenue [Extensible List]	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember	us-gaap:ManagementServiceMember
Total revenue	$ 168,633	$ 214,754	$ 241,017
EXPENSES
Property operating	42,123	28,705	19,700
Real estate taxes	38,595	42,446	45,653
Depreciation and amortization	104,581	226,675	262,171
General and administrative	39,156	34,788	27,902
Provision for doubtful accounts		257	158
Total expenses	224,455	332,871	355,584
Gain on sale of real estate	71,104	96,165	11,447
Gain on sale of interests in unconsolidated joint ventures	6,721		60,302
Equity in loss of unconsolidated joint ventures	(17,994)	(10,448)	(7,788)
Interest and other income	6,824	7,886	877
Interest expense	(94,519)	(90,020)	(70,112)
Change in fair value of interest rate cap		(23)	(701)
Loss before income taxes	(90,407)	(114,557)	(120,542)
Provision for income taxes	(196)	(321)	(271)
Net loss	(90,603)	(114,878)	(120,813)
Net loss attributable to non-controlling interests	31,206	41,406	47,059
Net loss attributable to Seritage	(59,397)	(73,472)	(73,754)
Preferred dividends	(4,900)	(4,903)	(245)
Net loss attributable to Seritage common shareholders	$ (64,297)	$ (78,375)	$ (73,999)
Net loss per share attributable to Seritage Class A and Class C common shareholders - Basic	$ (1.77)	$ (2.20)	$ (2.19)
Net loss per share attributable to Seritage Class A and Class C common shareholders - Diluted	$ (1.77)	$ (2.20)	$ (2.19)
Weighted average Class A and Class C common shares outstanding - Basic	36,413	35,560	33,804
Weighted average Class A and Class C common shares outstanding - Diluted	36,413	35,560	33,804

CONSOLIDATED STATEMENT OF EQUIT

CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands	Total	Class A Common Shares [Member]	Class B Common Shares [Member]	Class C Common Shares [Member]	Series A Preferred Shares [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Non-Controlling Interest [Member]
Beginning balance at Dec. 31, 2016	$ 1,424,311	$ 258	$ 16	$ 58		$ 925,563	$ (121,338)	$ 619,754
Beginning balance, shares at Dec. 31, 2016		25,843,000	1,589,000	5,755,000
Net loss	(120,813)						(73,754)	(47,059)
Common dividends and distributions declared	(56,117)						(34,668)	(21,449)
Vesting of restricted share units	(13)					(13)
Vesting of restricted share units, shares		11,000
Share-based compensation	7,018					7,018
Issuance of preferred stock	66,474				$ 28	66,446
Issuance of preferred stock, shares					2,800
Share class exchanges, net		$ 27		$ 27
Share class exchanges, net, shares		2,603,554		2,604,000
Share class surrenders			$ (3)			3
Share class surrenders, shares			(260,000)
OP Unit exchanges		$ 39				117,043		(117,082)
OP Unit exchanges, shares		3,958,000
Ending balance at Dec. 31, 2017	1,320,860	$ 324	$ 13	$ 31	$ 28	1,116,060	(229,760)	434,164
Ending balance, shares at Dec. 31, 2017		32,416,000	1,329,000	3,151,000	2,800,000
Net loss	(114,878)						(73,472)	(41,406)
Common dividends and distributions declared	(56,141)						(35,997)	(20,144)
Preferred dividends declared	(4,093)						(4,093)
Vesting of restricted share units, shares		2,000
Share-based compensation	5,632					5,632
Preferred stock offering costs	(113)					(113)
Share class exchanges, net	1	$ 32		$ 31
Share class exchanges, net, shares		3,151,131		3,151,000
Share class surrenders, shares			(7,000)
OP Unit exchanges		$ 1				2,925		(2,926)
OP Unit exchanges, shares		99,000
Ending balance at Dec. 31, 2018	1,150,458	$ 357	$ 13		$ 28	1,124,504	(344,132)	369,688
Ending balance, shares at Dec. 31, 2018		35,667,521	1,322,365		2,800,000
Net loss	(90,603)						(59,397)	(31,206)
Cumulative effect of accounting change	(1,286)						(1,286)
Common dividends and distributions declared	(14,026)						(8,996)	(5,030)
Preferred dividends declared	(4,900)						(4,900)
Vesting of restricted share units	(3,523)					(3,523)
Vesting of restricted share units, shares		15,000
Share-based compensation	7,250					7,250
Share class surrenders			$ (1)			1
Share class surrenders, shares			(79,000)
OP Unit exchanges		$ 12				21,489		(21,501)
OP Unit exchanges, shares		1,214,000
Ending balance at Dec. 31, 2019	$ 1,043,370	$ 369	$ 12		$ 28	$ 1,149,721	$ (418,711)	$ 311,951
Ending balance, shares at Dec. 31, 2019		36,897,364	1,242,536		2,800,000

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common dividends and distributions declared, per share	$ 0.25	$ 1	$ 1
Preferred dividends declared, per share	$ 1.75	$ 1.75
Class B Common Shares [Member]
Share class surrenders, shares	79,829	6,501	260,154
Class A Common Shares [Member]
Share class exchanges, common shares		3,151,131	2,603,554
OP Unit exchanges, shares	1,214,577	98,923	3,958,182

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
CASH FLOW FROM OPERATING ACTIVITIES
Net loss	$ (90,603)	$ (114,878)	$ (120,813)
Adjustments to reconcile net loss to net cash provided by operating activities:
Equity in loss of unconsolidated joint ventures	17,994	10,448	7,788
Distributions from unconsolidated joint ventures	877	3,956	4,305
Gain on sale of real estate	(71,104)	(96,165)	(11,447)
Gain on sale of interest in unconsolidated joint venture	(6,721)		(60,302)
Change in fair value of interest rate cap		23	701
Share-based compensation	6,845	7,472	7,018
Depreciation and amortization	104,581	226,675	262,171
Amortization of deferred financing costs	434	10,322	8,719
Amortization of above and below market leases, net	(495)	(768)	(720)
Straight-line rent adjustment	(15,590)	2,825	(3,719)
Change in operating assets and liabilities
Tenants and other receivables	2,556	(256)	(4,753)
Prepaid expenses, deferred expenses and other assets	(5,149)	(9,811)	(7,877)
Accounts payable, accrued expenses and other liabilities	(8,006)	15,056	(21,462)
Net cash (used in) provided by operating activities	(57,660)	54,899	59,609
CASH FLOW FROM INVESTING ACTIVITIES
Investment in unconsolidated joint ventures	(54,193)	(27,005)	(37,993)
Distributions from unconsolidated joint ventures	1,884	10,988	10,039
Net proceeds from disposition of interest in unconsolidated joint ventures			257,373
Net proceeds from sale of real estate	140,505	210,097	50,875
Development of real estate	(387,686)	(313,555)	(243,105)
Net cash (used in) provided by investing activities	(299,490)	(119,475)	37,189
CASH FLOW FROM FINANCING ACTIVITIES
Proceeds from Term Loan Facility		1,600,000
Repayment of mortgage loans payable		(1,210,561)	(50,634)
Repayment of Unsecured Term Loan		(145,000)
Proceeds from Future Funding Facility			79,998
Proceeds from Unsecured Term Loan			230,000
Repayment of Unsecured Delayed Draw Term Loan			(85,000)
Payment of deferred financing costs		(2,472)	(4,348)
Proceeds from issuance of preferred stock			70,000
Preferred stock offering costs		(113)	(3,526)
Purchase of shares related to stock grant recipients' tax withholdings	(3,523)	(1,840)
Preferred dividends paid	(4,900)	(4,020)
Common dividends paid	(17,964)	(35,677)	(34,248)
Non-controlling interests distributions paid	(10,060)	(20,118)	(21,448)
Net cash provided by (used in) financing activities	(36,447)	180,199	180,794
Net increase (decrease) in cash, cash equivalents, and restricted cash	(393,597)	115,623	277,592
Cash, cash equivalents, and restricted cash, beginning of period	532,857	417,234	139,642
Cash, cash equivalents, and restricted cash, end of period	139,260	532,857	417,234
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	117,556	102,786	73,870
Capitalized interest	28,497	23,183	13,142
Income taxes paid	285	321	271
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Development of real estate financed with accounts payable	17,006	26,180	21,449
Common dividends and OP unit distributions declared and unpaid		14,027	13,968
Preferred dividends declared and unpaid	1,225	1,225
Decrease in real estate, net resulting from deconsolidated properties
Real estate, net	(17,237)	(156,568)	(67,616)
Tenants and other receivables, net	(2)		(814)
Lease intangible assets, net	(26)	(1,416)	(13,480)
Prepaid expenses, deferred expenses and other assets, net	(84)	(193)	(8)
Accounts payable, accrued expenses and other liabilities	6		3,612
Transfer to real estate assets held for sale	(5,275)	(3,094)
Transfer of below market asset to right of use asset	(11,005)
Recording of right of use assets	19,373
Recording of lease liabilities	(8,368)
Property delivered in exchange	(2,075)
Property received in exchange	11,326
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents	139,260	532,857	241,569
Restricted cash	0	0	175,665
Cash, cash equivalents, and restricted cash, end of period	$ 139,260	$ 532,857	$ 417,234

Organization

Organization	12 Months Ended
	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization	Note 1 – Organization Seritage Growth Properties (“Seritage”) (NYSE: SRG), a Maryland real estate investment trust formed on June 3, 2015, is a fully integrated, self-administered and self-managed real estate investment trust (“REIT”) as defined under Section 856(c) of the Internal Revenue Code (the “Code”). Seritage’s assets are held by and its operations are primarily conducted, directly or indirectly, through Seritage Growth Properties, L.P., a Delaware limited partnership (the “Operating Partnership”). Under the partnership agreement of the Operating Partnership, Seritage, as the sole general partner, has exclusive responsibility and discretion in the management and control of the Operating Partnership. Unless otherwise expressly stated or the context otherwise requires, the “Company” and “Seritage” refer to Seritage, the Operating Partnership and its owned and controlled subsidiaries. Seritage is principally engaged in the acquisition, ownership, development, redevelopment, management and leasing of diversified retail and mixed-use properties throughout the United States. As of December 31, 2019, the Company’s portfolio consisted of interests in 212 properties totaling approximately 33.4 million square feet of GLA, including 184 Wholly Owned Properties totaling approximately 28.7 million square feet of GLA across 44 states and Puerto Rico, and interests in 28 JV Properties totaling approximately 4.7 million square feet of GLA across 14 states. The Company’s mission is to create and own revitalized shopping, dining, entertainment and mixed-use destinations that provide enriched experiences for consumers and local communities, and create long-term value for our shareholders. Background On June 11, 2015, Sears Holdings Corporation (“Sears Holdings” or “Sears”) effected a rights offering (the “Rights Offering”) to Sears Holdings stockholders to purchase common shares of Seritage in order to fund, in part, the $2.7 billion acquisition of (i) 234 of Sears Holdings’ owned properties and one of its ground leased properties, and (ii) its 50% interests in three joint ventures that collectively owned 28 properties, ground leased one property and leased two properties (the “Transaction”). The Rights Offering ended on July 2, 2015, and the Company’s Class A common shares were listed on the New York Stock Exchange (“NYSE”) on July 6, 2015. On July 7, 2015, the Company completed the Transaction with Sears Holdings and commenced operations. The Company did not have any operations prior to the completion of the Rights Offering and Transaction. On October 15, 2018, Sears Holdings and certain of its affiliates filed voluntary petitions for relief under chapter 11 of title 11 of the United States Code with the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”). On February 28, 2019, the Company and certain affiliates of Transform Holdco LLC (“Holdco”), an affiliate of ESL Investments, Inc., executed a master lease with respect to 51 Wholly Owned Properties (the “Holdco Master Lease”), which became effective on March 12, 2019, when the Bankruptcy Court issued an order approving the rejection of the original master lease between the Company and affiliates of Sears Holdings (the “Original Master Lease”). As of December 31, 2019, the Company leased space at 48 Wholly Owned Properties to Holdco under the Holdco Master Lease and also leased space to Holdco at three JV Properties. As of December 31, 2019, three Wholly Owned Properties were subject to 100% recapture notices pursuant to the terms of the Holdco Master Lease, and 28 Wholly Owned Properties and one JV Property were subject to termination notices pursuant to the terms of the Holdco Master Lease and the lease with Holdco at the JV Property, respectively. In November 2019, Holdco exercised its rights under the Holdco Master Lease to terminate the Holdco Master Lease, effective March 2020, with respect to 29 stores. activity, the Company leased space at 17 Wholly Owned Properties to Holdco under the Holdco Master Lease and also leased space to Holdco at two JV Properties. Edward S. Lampert is the Chairman and Chief Executive Officer of ESL Investments, Inc, which owns Holdco. Mr. Lampert is also the Chairman of Seritage and controls each of the tenant entities that is a party to the Holdco Master Lease. Liquidity The Company’s primary uses of cash include the payment of property operating and other expenses, including general and administrative expenses and debt service (collectively, “obligations”), and the reinvestment in and redevelopment of its properties (“development expenditures”). As a result of a decrease in occupancy levels due to the Company’s recapture of space for redevelopment purposes and the execution of certain termination rights by Sears Holdings under the Original Master Lease, property rental income, which is the Company’s primary source of operating cash flow, did not fully fund obligations incurred during the year ended December 31, 2019 and the Company had operating cash outflows of $57.7 million. Additionally, the Company’s development expenditures during the year ended December 31, 2019 drove investing cash outflows of $299.5 million. O bligations are projected to continue to exceed property rental income until such time as additional tenants commence paying rent , and the Company plans to incur additional development expenditures as it continues to invest in the redevelopment of its portfolio . While the Company does not currently have the liquid funds available to satisfy the obligations and development expenditures , the Company expects to fund the obligations and development expenditures with a combination of capital sources including, but not limited to, sales of Wholly Owned Properties, sales of interests in JV Properties (which may include the exercise of certain rights that allow the Company to sell its interests in select JV Properties to its partners at fair market valu e) and potential credit and capital markets transactions , subject to any approvals that may be required under the Term Loan Agreement , as described in Note 6 , Debt . Management has determined that it is probable its plans will be effectively implemented within one year after the date the financial statements are issued and that these actions will provide the necessary cash flows to fund the Company’s obligations and development expenditures.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 – Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidation The accompanying consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). The consolidated financial statements include the accounts of the Company, the Operating Partnership, each of their wholly-owned subsidiaries, and all other entities in which they have a controlling financial interest or entities that meet the definition of a variable interest entity (“VIE”) in which the Company has, as a result of ownership, contractual interests or other financial interests, both the power to direct activities that most significantly impact the economic performance of the VIE and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. All intercompany accounts and transactions have been eliminated. If the Company has an interest in a VIE but it is not determined to be the primary beneficiary, the Company accounts for its interest under the equity method of accounting. Similarly, for those entities which are not VIEs and over which the Company has the ability to exercise significant influence, but does not have a controlling financial interest, the Company accounts for its interests under the equity method of accounting. The Company continually reconsiders its determination of whether an entity is a VIE and whether the Company qualifies as its primary beneficiary. As of December 31, 2019 and December 31, 2018, the Company has several unconsolidated VIEs in the form of joint ventures (see Note 4). The Company does not consolidate these entities because the Company is not the primary beneficiary and the nature of its involvement in the activities of these entities does not give the Company power over decisions that significantly affect these entities’ economic performance. As of December 31, 2019, the Company holds a 66.1% interest in the Operating Partnership and is the sole general partner which gives the Company exclusive and complete responsibility for the day-to-day management, authority to make decisions, and control of the Operating Partnership. The Company has determined that the Operating Partnership is a VIE as the limited partners in the Operating Partnership, although entitled to vote on certain matters, do not possess kick-out rights or substantive participating rights. Accordingly, the Company consolidates its interest in the Operating Partnership. The assets and liabilities of the Operating Partnership are the same as those of the Company and are presented in the consolidated balance sheet. To the extent such variable interests are in entities that are not evaluated under the VIE model, the Company evaluates its interests using the voting interest entity model. Reclassification Upon adoption on January 1, 2019 of the new lease standard in accordance with ASC 842, tenant reimbursements for 2018 and 2017 have been reclassified to rental income in the consolidated statements of operations to conform to the 2019 financial statement presentation. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The most significant assumptions and estimates relate to the useful lives of tangible and intangible assets, real estate impairment assessments, and assessing the recoverability of accounts receivable. These estimates are based on historical experience and other assumptions which management believes are reasonable under the circumstances. Management evaluates its estimates on an ongoing basis and makes revisions to these estimates and related disclosures as experience develops or new information becomes known. Actual results could differ from these estimates. Segment Reporting The Company currently operates in a single reportable segment which includes the acquisition, ownership, development, redevelopment, management, and leasing of real estate properties. The Company’s chief operating decision maker, its Chief Executive Officer, assesses and measures the operating and financial results for each property on an individual basis and does not distinguish or group properties based on geography, size, or type. The Company, therefore, aggregates all properties into one reportable segment due to their similarities with regard to the nature and economics of the properties, tenants, and operational process. Real Estate Investments Real estate assets are recorded at cost, less accumulated depreciation and amortization. Expenditures for ordinary repairs and maintenance will be expensed as incurred. Significant renovations which improve the property or extend the useful life of the assets are capitalized. As real estate is undergoing redevelopment activities, all amounts directly associated with and attributable to the project, including planning, development and construction costs, interest costs, personnel costs of employees directly involved, and other miscellaneous costs incurred during the period of redevelopment, are capitalized. The capitalization period begins when redevelopment activities are underway and ends when the project is substantially complete. Depreciation of real estate assets, excluding land, is recognized on a straight-line basis over their estimated useful lives as follows: Buildings: 25 – 40 years Site improvements: 5 – 15 years Tenant improvements: shorter of the estimated useful life or non-cancelable term of lease The Company amortizes identified intangibles that have finite lives over the period they are expected to contribute directly or indirectly to the future cash flows of the property or business acquired, generally the remaining non-cancelable term of a related lease. On a periodic basis, management assesses whether there are indicators that the value of the Company’s real estate assets (including any related intangible assets or liabilities) may be impaired. If an indicator is identified, a real estate asset is considered impaired only if management’s estimate of current and projected operating cash flows (undiscounted and unleveraged), taking into account the anticipated and probability weighted holding period, are less than a real estate asset’s carrying value. Various factors are considered in the estimation process, including expected future operating income, trends and prospects and the effects of demand, competition, and other economic factors. Changes in any estimates and/or assumptions, including the anticipated holding period, could have a material impact on the projected operating cash flows. If management determines that the carrying value of a real estate asset is impaired, a loss will be recorded for the excess of its carrying amount over its estimated fair value. No impairment losses were recognized for the years ended December 31, 2019, 2018 or 2017. Real Estate Dispositions The following table summarizes our gain on sale of real estate, net during the years ended December 31, 2019, 2018, and 2017 (in thousands): Year Ended December 31, 2019 2018 2017 Contributions to unconsolidated joint ventures Gross proceeds $ 21.7 $ 232.7 $ 57.5 Gain (loss) on sale of real estate, net 3.9 63.9 11.4 Dispositions to third parties Gross proceeds $ 144.3 $ 114.3 $ — Gain (loss) on sale of real estate, net 63.7 29.5 — Total gains on contributions and dispositions, net $ 67.6 $ 93.4 $ 11.4 For the year ended December 31, 2019, gain on sales on the consolidated statements of operations also includes a gain of $6.9 million related to an exchange of land parcels of approximately equal size with an adjacent land owner and a loss of $2.3 million related to the West Hartford JV revaluation as discussed in Note 4. Real Estate Held for Sale When a real estate asset is identified by management as held for sale, the Company ceases depreciation of the asset and estimates its fair value, net of estimated costs to sell. If the estimated fair value, net of estimated costs to sell, of an asset is less than its net carrying value, an adjustment is recorded to reflect the estimated fair value. Properties classified as real estate held for sale generally represent properties that are under contract for sale and are expected to close within a year. In evaluating whether a property meets the held for sale criteria, the Company makes a determination as to the point in time that it is probable that a sale will be consummated. Given the nature of all real estate sales contracts, it is not unusual for such contracts to allow potential buyers a period of time to evaluate the property prior to formal acceptance of the contract. In addition, certain other matters critical to the final sale, such as financing arrangements, often remain pending even upon contract acceptance. As a result, properties under contract may not close within the expected time period or at all. As of December 31, 2019, two properties were classified as held for sale with assets of $5.3 million and no liabilities , and as of December 31, 2018, one property was classified as held for sale with assets of $3.1 million and no liabilities. Investments in Unconsolidated Joint Ventures The Company accounts for its investments in unconsolidated joint ventures using the equity method of accounting as the Company exercises significant influence, but does not control these entities. These investments are initially recorded at cost and are subsequently adjusted for cash contributions, cash distributions, and earnings which are recognized in accordance with the terms of the applicable agreement. On a periodic basis, management assesses whether there are indicators, including the operating performance of the underlying real estate and general market conditions, that the value of the Company’s investments in unconsolidated joint ventures may be impaired. An investment’s value is impaired only if management’s estimate of the fair value of the Company’s investment is less than its carrying value and such difference is deemed to be other-than-temporary. To the extent impairment has occurred, the loss is measured as the excess of the carrying amount of the investment over its estimated fair value. No such impairment losses were recognized for the years ended December 31, 2019, 2018 or 2017. Cash and Cash Equivalents The Company considers instruments with an original maturity of three months or less to be cash and cash equivalents. Cash and cash equivalent balances may, at a limited number of banks and financial institutions, exceed insurable amounts. The Company believes it mitigates this risk by investing in or through major financial institutions and primarily in funds that are insured by the United States federal government. Restricted Cash Restricted cash represents cash deposited in escrow accounts which generally can only be used for the payment of real estate taxes, debt service, insurance, and future capital expenditures as required by certain loan and lease agreements, as well as legally restricted tenant security deposits. As of December 31, 2019 and December 31, 2018, the Company did not have any restricted cash . Restricted cash accounts were closed in conjunction with the full repayment of the Mortgage Loans and the Future Funding Facility on July 31, 2018. Tenant and Other Receivables Accounts receivable includes unpaid amounts billed to tenants, accrued revenues for future billings to tenants for property expenses, and amounts arising from the straight-lining of rent. The Company periodically reviews its receivables for collectability, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates, and economic conditions in the area where the property is located. For accrued rental income related to the straight-line method of reporting rental income, the Company performs a periodic review of receivable balances to assess the risk of uncollectible amounts and establish appropriate provisions. Any receivables that are deemed to be uncollectible are recognized as a reduction to rental income in the Company’s consolidated statements of operations. Prior period provision for doubtful accounts is presented on the Company's consolidated statements of operations in accordance with the Company's previous presentation and has not been reclassified to rental income. Tenant and other receivables also include management fees receivable for services performed for the benefit of certain unconsolidated joint ventures. In the event that the collectability of a management fee receivable is in doubt, a provision for uncollectible amounts will be established or a direct write-off of the specific receivable will be made. Revenue Recognition Rental income is comprised of base rent and reimbursements of property operating expenses. Base rent is recognized on a straight-line basis over the non-cancelable terms of the related leases. For leases that have fixed and measurable base rent escalations, the difference between such rental income earned and the cash rent due under the provisions of the lease is recorded as deferred rent receivable and included as a component of tenant and other receivables on the consolidated balance sheets. In leasing tenant space, the Company may provide funding to the lessee through a tenant allowance. In accounting for a tenant allowance, the Company will determine whether the allowance represents funding for the construction of leasehold improvements and evaluate the ownership of such improvements. If the Company is considered the owner of the improvements for accounting purposes, the Company will capitalize the amount of the tenant allowance and depreciate it over the shorter of the useful life of the improvements or the related lease term. If the tenant allowance represents a payment for a purpose other than funding leasehold improvements, or in the event the Company is not considered the owner of the improvements for accounting purposes, the allowance is considered a lease incentive and is recognized over the lease term as a reduction of rental revenue on a straight-line basis. The Company commences recognizing revenue based on an evaluation of several factors. Revenue recognition under a lease begins when the lessee takes control of the physical use of the leased asset. Reimbursement of property operating expenses arises from tenant leases which provide for the recovery of all or a portion of the operating expenses and real estate taxes of the respective property. This revenue is accrued in the same periods as the expenses are incurred. Management and Other Fee Income Management and other fee income represents property management, construction, leasing and development fees for services performed for the benefit of certain unconsolidated joint ventures. Property management fee income is reported at 100% of the revenue earned from such joint ventures in management and other fee income on the consolidated statements of operations. The Company’s share of management expenses incurred by the unconsolidated joint ventures is reported in equity in income (loss) of unconsolidated joint ventures on the consolidated statements of operations and in other expenses in the combined financial data in Note 4. Leasing and development fees are initially reported at the portion of fees attributable to outside ownership of the related unconsolidated joint ventures. The Company’s share in management fee income is recognized over the useful life of the associated development project, in the case of development fees, or lease term, in the case of leasing fees, as the associated asset is depreciated over the same term and included in equity in income (loss) of unconsolidated joint ventures on the consolidated statements of operations and in other expenses in the combined financial data in Note 4. Management determined that property and asset management and construction and development management services each represent a series of stand-ready performance obligations satisfied over time with each day of service being a distinct performance obligation. For property and asset management services, the Company is typically compensated for its services through a monthly management fee earned based on a specified percentage of monthly rental income or rental receipts generated from the property under management. For construction and development services, the Company is typically compensated for planning, administering and monitoring the design and construction of projects at our unconsolidated joint venture properties based on a percentage of project costs or a fixed fee. Revenues from such management contracts are recognized over the life of the applicable contract. Conversely, leasing services are considered to be a single performance obligation, satisfied as of a point in time. The Company’s leasing fee is typically paid upon the occurrence of certain contractual event(s) that may be contingent and the pattern of revenue recognition may differ from the timing of payment. For these services, the obligation is typically the execution of the lease and, as such, revenues are recognized at the point in time when that obligation has been satisfied. Accounting for Recapture and Termination Activity Pursuant to the Original Master Lease and Holdco Master Lease (see Note 5) Seritage Recapture Rights. The Company generally treats the delivery of a recapture notice as a modification of the lease as of the date of notice. Such a notice and lease modification result in the following accounting adjustments for the recaptured property: − The portion of accrued rental revenues related to the straight-line method of reporting rental revenue that are subject to the lease modification are amortized over the remaining shortened life of the lease from the date of notice to the date of vacancy. The portion of accrued rental revenues related to the straight-line method of reporting rental revenue that is attributable to the retained space, if any, is amortized over the remaining life of the lease. − The portion of intangible lease assets and liabilities that is deemed to be impacted by the lease modification is amortized over the shorter of the shortened lease term from the date of notice to the date of vacancy or the remaining useful life of the asset or liability. The portion of intangible lease assets and liabilities that is attributable to the retained space, if any, is amortized over the remaining useful life of the asset or liability. A recapture will generally occur in conjunction with obtaining a new tenant or a real estate development project. As such, termination fees, if any, associated with the recapture notice are generally capitalized as either an initial direct cost of obtaining a new lease or a necessary cost of the real estate project and depreciated over the life of the new lease obtained or the real estate asset being constructed or improved. Termination Rights. The Original Master Lease provided, and the Holdco Master Lease provides the tenant with certain rights to terminate their lease. Such terminations would generally result in the following accounting adjustments for the terminated property: − Accrued rental revenues related to the straight-line method of reporting rental revenue that are subject to the termination are amortized over the remaining shortened life of the lease from the date of notice to the date of vacancy. − Intangible lease assets and liabilities that are deemed to be impacted by the termination are amortized over the shorter of the shortened lease term from the date of notice to the date of vacancy or the remaining useful life of the asset or liability. − Termination fees required to be paid are recognized as follows: • For the portion of the termination fee attributable to the annual base rent of the subject property, termination income is recognized on a straight-line basis over the shortened life of the lease from the date the termination fee becomes legally binding to the date of vacancy. • For the portion of the termination fee attributable to estimated real estate taxes and property operating expenses for the subject property, prepaid rental income is recorded in the period such fee is received and recognized as tenant reimbursement revenue in the same periods as the expenses are incurred. Derivatives The Company’s use of derivative instruments is limited to the management of interest rate exposure and not for speculative purposes. In connection with the issuance of the Company’s Mortgage Loans and Future Funding Facility in July 2015, the Company purchased for $5.0 million an interest rate cap with a term of four years, a notional amount of $1,261 million and a strike rate of 3.5%. The interest rate cap was measured at fair value and included as a component of prepaid expenses, deferred expenses and other assets on the consolidated balance sheets. The Company had elected not to utilize hedge accounting and therefore the change in fair value was included within change in fair value of interest rate cap on the consolidated statements of operations. During the year ended December 31, 2018, the Company terminated the interest rate cap concurrent with the repayment of the Mortgage Loans and the Future Funding Facility and as such there were no instruments as of December 31, 2019 and December 31, 2018. For the year ended December 31, 2019, the Company did not record any gain or loss on derivatives. For the year ended December 31, 2018 and December 31, 2017, the Company recorded a change in the fair value of the interest rate cap of ($23) thousand, and ($0.7) million, respectively. Share-Based Compensation The Company generally recognizes equity awards to employees as compensation expense and includes such expense within general and administrative expenses in the consolidated statements of operations. Compensation expense for equity awards is based on the grant date fair value of the awards. Compensation expense is recognized ratably over the vesting period for awards with time-based vesting and awards with market-based vesting conditions (e.g. total shareholder return). For awards with performance-based vesting determined by Company operating criteria, the Company recognizes compensation expense at the date the achievement of performance criteria is deemed probable for the amount which would have been recognized ratably from the date of the grant through the date the achievement of performance criteria is deemed probable, and then ratably from the date the achievement of performance criteria is deemed probable through the remainder of the vesting period. The Company utilizes a third-party valuation firm to measure the grant date fair value of restricted stock unit awards with market-based criteria using the Monte Carlo model. Forfeitures are recorded on an actual basis. Concentration of Credit Risk Concentrations of credit risk arise when a number of operators, tenants, or obligors related to the Company's investments are engaged in similar business activities, or activities in the same geographic region, or have similar economic features that would cause their ability to meet contractual obligations, including those to the Company, to be similarly affected by changes in economic conditions. As of December 31, 2019, 49 of the Company's real estate properties were leased to Holdco and a material amount of the Company’s rental revenues for the year ended December 31, 2019 was derived from the Holdco Master Lease. However, in November 2019, Holdco exercised its termination rights under the Holdco Master Lease with respect to 29 stores effective as of the first quarter of 2020. Other than the Company's tenant concentration, management believes the Company's portfolio was reasonably diversified by geographical location and did not contain any other significant concentrations of credit risk. As of December 31, 2019, the Company's portfolio of 184 Wholly Owned Properties and 28 JV Properties was diversified by location across 44 states and Puerto Rico. Earnings per Share The Company has three classes of common stock. The rights, including the liquidation and dividend rights, of the holders of the Company’s Class A common shares and Class C non-voting common shares are identical, except with respect to voting. As the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis. The net earnings (loss) per share amounts are the same for Class A and Class C common shares because the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation. As of August 29, 2018, all outstanding Class C common shares had been exchanged for Class A common shares and there are currently no Class C common shares outstanding. Class B non-economic common shares are excluded from earnings per share computations as they do not have economic rights. All outstanding non-vested shares that contain non-forfeitable rights to dividends are considered participating securities and are included in computing earnings per share pursuant to the two-class method which specifies that all outstanding non-vested share-based payment awards that contain non-forfeitable rights to distributions are considered participating securities and should be included in the computation of earnings per share. Recently Issued Accounting Pronouncements The following presents Accounting Standards Updates (“ASU”) issued by Financial Accounting Standards Board (“FASB”) which have been adopted by the Company: ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets This standard provides guidance for recognizing gains and losses from the transfer of nonfinancial assets. The standard requires a company to derecognize nonfinancial assets once it transfers control of a distinct nonfinancial asset or distinct in substance nonfinancial assets to noncustomers. Additionally, when a company transfers its controlling interest in a nonfinancial asset, but retains a non-controlling ownership interest, the company is required to measure any non-controlling interest it receives or retains at fair value. An entity may elect to apply the amendments in ASU 2017-05 either retrospectively to each period presented in the financial statements (i.e. the retrospective approach) or retrospectively with a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption (i.e. the modified retrospective approach). January 1, 2018 The Company adopted this update with no impact to beginning retained earnings/accumulated deficit because there were no open contracts at the time of adoption. ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments This standard provides classification guidance for eight specific topics including debt extinguishment costs, contingent consideration payments made after a business combination, and distributions received from equity method investees. ASU 2016-15 is effective, on a retrospective basis, for interim and annual periods beginning after December 15, 2017; early adoption is permitted. January 1, 2018 The Company adopted this standard and applied the cumulative earnings approach to classify distributions received from our equity method investees. The adoption (i) changes our statements of cash flows so that distributions from unconsolidated joint ventures in excess of cumulative equity in earnings are now classified as inflows from investing activities for each period presented and (ii) resulted in a decrease to net cash provided by operating activities and an increase to net cash provided by investing activities of $ 10.0 million ASU 2014-09, Revenue from Contracts with Customers and the related FASB ASU Nos. 2016-12 and 2016-20 This standard provides practical expedients, technical corrections, and improvements for certain aspects of ASU 2014-09. ASU 2014-09 was developed to enable financial statement users to better understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The update’s core principle is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Companies are to use a five-step contract review model to ensure revenue is recognized, measured and disclosed in accordance with this principle. Those steps include the following: (i) identify the contract with the customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to each performance obligation in the contract, and (v) recognize revenue when or as the entity satisfies a performance obligation. The Company estimates the total transaction price, which generally includes a fixed contract price and may also include variable components. Variable components of the contract price are included in the transaction price to the extent that it is probable that a significant reversal of revenue will not occur. The Company recognizes the estimated transaction price as revenue as it satisfies its performance obligations. January 1, 2018 The Company adopted this standard using the modified retrospective method. Management concluded that the majority of total revenues consist of rental income from leasing arrangements, which is specifically excluded from the standard. As of January 1, 2018, the Company began accounting for the sale of real estate properties under Subtopic 610-20 which provides for revenue recognition based on transfer of ownership. ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2016-02, Leases (“Topic 842”) ASU 2018-10, Codification Improvements ASU 2018-11, Leases , Targeted Improvements ASU 2018-20, Leases This standard, as amended by subsequent ASUs on the topic, sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. Additional guidance and targeted improvements to the February 2016 ASU were made through the issuance of supplementary ASUs in July 2018, December 2018 and March 2019. The accounting applied by the lessor is largely unchanged from that applied under the existing lease standard. However, ASU 2016-02 requires lessees to apply a two-method approach, classifying leases as either finance or operating leases based on the principle of whether the lease is effectively a financed purchase. Lessees are required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months. Leases with a term of 12 months or less should be accounted for consistent with earlier guidance under ASC 840 for operating leases. Lessees should recognize an expense based on the effective interest method for finance leases or on a straight-line basis for operating leases. January 1, 2019 The Company adopted this standard by electing the package of practical expedients without hindsight which permits the Company to not reassess (1) whether any expired or existing contracts are or contain leases, (2) lease classification for any expired or existing leases, and (3) any initial direct costs for any existing leases as of the adoption date. The Company has a ground lease and several corporate office leases, which are classified as operating leases, for which the Company is required to record a right-of-use asset and a lease liability equal to the present value of the remaining minimum lease payments and will continue to recognize expense on a straight-line basis for these leases. On January 1, 2019, the Company recorded an aggregate of approximately $8.4 million of right-of-use assets and corresponding $8.4 million of lease liabilities upon adoption of this standard. Right-of-use assets and corresponding lease liabilities are included in the prepaid expenses, deferred expenses and other assets and accounts payable, accrued expenses and o

Lease Intangible Assets and Lia

Lease Intangible Assets and Liabilities	12 Months Ended
	Dec. 31, 2019
Real Estate [Abstract]
Lease Intangible Assets and Liabilities	Note 3 – Lease Intangible Assets and Liabilities Lease intangible assets (acquired in-place leases, above-market leases and below-market ground leases) and liabilities (acquired below-market leases), net of accumulated amortization, were $68.2 million and $10.6 million, respectively, as of December 31, 2019, and $123.7 million and $12.3 million, respectively, as of December 31, 2018. The following table summarizes the Company’s lease intangible assets and liabilities (in thousands): December 31, 2019 Gross Accumulated Lease Intangible Assets Asset Amortization Balance In-place leases, net $ 245,745 $ (180,639 ) $ 65,106 Above-market leases, net 6,625 (3,578 ) 3,047 Total $ 252,370 $ (184,217 ) $ 68,153 Gross Accumulated Lease Intangible Liabilities Liability Amortization Balance Below-market leases, net $ 15,912 $ (5,264 ) $ 10,648 Total $ 15,912 $ (5,264 ) $ 10,648 December 31, 2018 Gross Accumulated Lease Intangible Assets Asset Amortization Balance In-place leases, net $ 266,897 $ (158,235 ) $ 108,662 Below-market ground leases, net 11,766 (710 ) 11,056 Above-market leases, net 8,338 (4,400 ) 3,938 Total $ 287,001 $ (163,345 ) $ 123,656 Gross Accumulated Lease Intangible Liabilities Liability Amortization Balance Below-market leases, net $ 19,720 $ (7,439 ) $ 12,281 Total $ 19,720 $ (7,439 ) $ 12,281 Amortization of acquired below-market leases, net of acquired above-market leases, resulted in additional rental income of $0.5 million, $0.9 million and $1.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. Future amortization of these intangibles is estimated to increase rental income as set forth below (in thousands): 2020 $ 287 2021 148 2022 118 2023 175 2024 190 Amortization of acquired below-market ground leases resulted in additional rent expense of $0.2 million for each of the years ended December 31, 2019, 2018 and 2017. Future amortization of the below-market ground lease is estimated to increase property expenses as set forth below (in thousands): 2020 $ 203 2021 203 2022 203 2023 203 2024 203 Amortization of acquired in-place leases resulted in additional depreciation and amortization expense of $40.5 million, $173.1 million and $139.5 million for the years ended December 31, 2019, 2018 and 2017, respectively. Future estimated amortization of acquired in-place leases is set forth below (in thousands): 2020 $ 14,396 2021 13,226 2022 12,918 2023 12,118 2024 11,574

Investments in Unconsolidated J

Investments in Unconsolidated Joint Ventures	12 Months Ended
	Dec. 31, 2019
Equity Method Investments And Joint Ventures [Abstract]
Investments in Unconsolidated Joint Ventures	Note 4 – Investments in Unconsolidated Joint Ventures The Company conducts a portion of its property rental activities through investments in unconsolidated joint ventures. The Company’s partners in these joint ventures are unrelated real estate entities or commercial enterprises. The Company and its joint venture partners make initial and/or ongoing capital contributions to these unconsolidated joint ventures. The obligations to make capital contributions are governed by each unconsolidated joint venture’s respective operating agreement and related governing documents. As of December 31, 2019, the Company had investments in nine unconsolidated joint ventures as follows: Seritage % # of Total Unconsolidated Joint Venture Joint Venture Partner Ownership Properties GLA GS Portfolio Holdings II LLC ("GGP I JV") Brookfield Properties Retail 50.0 % 4 598,200 GS Portfolio Holdings (2017) LLC ("GGP II JV") Brookfield Properties Retail 50.0 % 5 1,168,000 MS Portfolio LLC ("Macerich JV") The Macerich Company 50.0 % 9 1,572,000 SPS Portfolio Holdings II LLC ("Simon JV") Simon Property Group, Inc. 50.0 % 5 872,200 Mark 302 JV LLC ("Mark 302 JV") An investment fund managed by Invesco Real Estate 50.1 % 1 96,400 SI UTC LLC ("UTC JV") A separate account advised by Invesco Real Estate 50.0 % 1 226,200 SF WH Joint Venture LLC ("West Hartford JV") An affiliate of First Washington Realty 50.0 % 1 163,600 GGCAL SRG HV LLC ("Cockeysville JV") An affiliate of Greenberg Gibbons 50.0 % 1 159,000 Tech Ridge JV Holding LLC ("Tech Ridge JV") An affiliate of RD Management 50.0 % 1 — 28 4,855,600 The Company has contributed certain properties to joint ventures in exchange for equity interests in those joint ventures. The contribution of property to a joint venture is accounted for as a sale of real estate and the Company recognizes the gain (loss) on the sale (the “Gain (Loss)”) based upon the transaction price attributed to the property at the closing of the joint venture transaction (the “Contribution Value”). The Gain (Loss) is included in gain on sale of real estate within the consolidated statements of operations. In certain circumstances, the Contribution Value is subject to revaluation as defined in the respective joint venture agreements, which may result in an adjustment to the Gain (Loss) recognized. If the Contribution Value is subject to revaluation, the Company initially recognizes the Gain (Loss) at the value that is the expected amount within the range of possible outcomes and will re-evaluate the expected amount on a periodic basis through the final determination date. Upon revaluation, the primary inputs in determining the Contribution Value will be updated for actual results and may result in a cash settlement or capital account adjustment between the joint venture partners, as well as an adjustment to the Initial Gain (Loss). Each reporting period, the Company re-analyzes the primary inputs that determine the Contribution Value and the Gain (Loss) for those joint ventures subject to a revaluation. The following table presents summarizes the properties contributed to the Company’s unconsolidated joint ventures: December 31, 2019 Unconsolidated Joint Venture Contribution Date Contribution Value Gain (Loss) 2018 Mark 302 JV (1) March 20, 2018 $ 90.0 $ 38.8 UTC JV May 18, 2018 68.0 28.3 West Hartford JV (2) May 18, 2018 20.3 (1.1 ) 2019 Cockeysville JV (3) March 29, 2019 $ 12.5 $ 3.8 Tech Ridge JV (4) September 27, 2019 3.0 0.1 (1) The Mark 302 JV is subject to a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2020. The primary inputs in determining the Contribution Value for the Mark 302 JV are property operating income and total project costs and the Contribution Value will be recalculated to yield a pre-determined rate of return to the investment fund managed by Invesco Real Estate. The Contribution Value cannot be more than $ ( 2 ) The West Hartford JV is subject to (i) a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2019, and (ii) an adjustment based on the timing, method and magnitude of the reassessment of the property for real estate tax purposes between 2018 and 2022. The primary inputs in determining the Contribution Value for the West Hartford JV are property operating income , real estate taxes and total project costs. The Contribution Value cannot be more than $ 29.6 million or less than $ 20.4 million, and the Gain (Loss) can not be more than $ 5.8 million or more than a $ 3.4 million loss . As of December 31, 2019, the Company revaluated the Contribution Value and recorded an additional loss of $ 2.3 million. ( 3 ) The Cockeysville JV is subject to revaluation if an affiliate of Greenberg Gibbons contributes another adjacent parcel of land (the “Additional Land Parcel”) to the Cockeysville JV if certain milestones are met with respect to entitling the Additional Land Parcel for residential use. If the Additional Land Parcel is contributed to the Cockeysville JV, the Company will record an increased investment in the Cockeysville JV in an amount equal to 50% of the fair value of the Additional Land Parcel at the time of contribution. The Contribution Value of the Cockeysville JV is based upon the Company’s assessment of the probability of the Additional Land Parcel being entitled for residential use. The maximum Gain (Loss) is the fair value of the Additional Land Parcel at the time the Contribution Value is revalued, which cannot be less than $ ( 4 ) The Tech Ridge JV is subject to a revaluation primarily based upon, the number of residential units constructed by the Tech Ridge JV. T he Contribution Value cannot be less than $2.75 million. Other Joint Venture Transactions The Company has contributed certain property to the following joint ventures in 2017: GGP JVs On July 12, 2017, the Company completed two transactions with Brookfield Retail Properties for gross consideration of $247.6 million whereby the Company (i) sold to Brookfield Retail Properties the Company’s 50% JV Interests in eight of the 12 assets in the GGP I JV for $190.1 million and recorded a gain of $43.7 million which is included in gain on sale of interest in unconsolidated joint venture within the consolidated statements of operations; and (ii) contributed five Wholly Owned Properties to the GGP II JV and sold a 50% interest in the new JV Properties to Brookfield Retail Properties for $57.5 million and recorded a gain of $11.5 million which is included in gain on sale of real estate within the consolidated statements of operations. Simon JV On November 3, 2017, the Company sold to its partner, Simon Property Group, Inc., its 50% joint venture interests in five of the ten assets in the Simon JV for $68.0 million and recorded a gain of $16.6 million which is included in gain on sale of interest in unconsolidated joint venture within the consolidated statements of operations. Joint Venture Management and Related Fees The Company acts as the operating partner and day-to-day manager for the Mark 302 JV, the West Hartford JV, the UTC JV, and Tech Ridge JV. The Company is entitled to receive certain fees for providing management, leasing, and construction supervision services to certain of its joint ventures. The Company also acts as the development manager for one of the properties in the GGP II JV which entitles the Company to receive certain development fees. The Company earned $1.6 million and $1.2 million from these services for the years ended December 31, 2019 and December 31, 2018, respectively. The following tables present combined financial data for the Company’s unconsolidated joint ventures (in thousands): December 31, 2019 December 31, 2018 ASSETS Investment in real estate Land $ 336,739 $ 321,853 Buildings and improvements 517,068 508,302 Accumulated depreciation (86,496 ) (72,239 ) 767,311 757,916 Construction in progress 177,028 78,227 Net investment in real estate 944,339 836,143 Cash and cash equivalents 27,977 14,741 Tenant and other receivables, net 3,113 5,220 Other assets, net 26,051 38,285 Total assets $ 1,001,480 $ 894,389 LIABILITIES AND MEMBERS' INTERESTS Liabilities Mortgage loans payable, net $ 14,218 $ 10,406 Accounts payable, accrued expenses and other liabilities 89,110 71,791 Total liabilities 103,328 82,197 Members Interest Additional paid in capital 934,120 833,168 Retained earnings (35,968 ) (20,976 ) Total members interest 898,152 812,192 Total liabilities and members interest $ 1,001,480 $ 894,389 Year Ended December 31, 2019 2018 2017 EQUITY IN INCOME OF UNCONSOLIDATED JOINT VENTURES Total revenue $ 31,470 $ 48,455 $ 58,264 Property operating expenses (11,385 ) (9,357 ) (11,358 ) Depreciation and amortization (60,745 ) (31,676 ) (47,948 ) Operating income (loss) (40,660 ) 7,422 (1,042 ) Other expenses (2,049 ) (28,317 ) (14,533 ) Gain on sale of real estate, net 6,721 — — Net (loss) income $ (35,988 ) $ (20,895 ) $ (15,575 ) Equity in (loss) income of unconsolidated joint ventures $ (17,994 ) $ (10,448 ) $ (7,788 ) Each unconsolidated joint venture is obligated to maintain financial statements in accordance with GAAP. The Company shares in the profits and losses of these unconsolidated joint ventures generally in accordance with the Company’s respective equity interests. In some instances, the Company may recognize profits and losses related to investment in an unconsolidated joint venture that differ from the Company’s equity interest in the unconsolidated joint venture. This may arise from impairments that the Company recognizes related to its investment that differ from the impairments the unconsolidated joint venture recognizes with respect to its assets, differences between the Company’s basis in assets it has transferred to the unconsolidated joint venture and the unconsolidated joint venture’s basis in those assets or other items. There were no joint venture impairment charges for the years ended December 31, 2019, 2018 and 2017.

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Note 5 – Leases On February 28, 2019, the Company and certain affiliates of Holdco executed the Holdco Master Lease which became effective on March 12, 2019 when the Bankruptcy Lease Structure The structure of the Holdco Master Lease is consistent with the structure of the Original Master Lease in all material respects, including (i) it is a unitary, non-divisible lease as to all properties, pursuant to which the tenant’s obligations as to each property are cross-defaulted with all obligations of the tenant with respect to all other properties; (ii) it is a triple net lease with respect to all space which is leased thereunder to the tenant, subject to proportional sharing by the tenant for repair and maintenance charges, real property taxes, insurance and other costs and expenses which are common to both the space leased by the tenant and other space occupied by other tenants in the same or other buildings, space which is recaptured pursuant to the Company’s recapture rights described below and all other space which is constructed on the properties; (iii) the tenant is required to make all expenditures reasonably necessary to maintain the premises in good appearance, repair and condition for as long as they are in occupancy; and (iv) the tenant is generally prohibited from subleasing any space demised under the lease. Term and Renewals Consistent with the terms of the Original Master Lease, the Holdco Master Lease will expire in July 2025 five-year four-year Rental Revenue The Holdco Master Lease provides for an initial base rent at the same rates which were in place at the time the Original Master Lease was rejected. In each of the initial term and the first two renewal terms, consistent with the Original Master Lease, base rent under the Holdco Master Lease will be increased in August of each year by 2.0% per annum for each lease year over the rent for the immediately preceding lease year. For subsequent renewal terms, consistent with the Original Master Lease, rent will be set at the commencement of the renewal term for the Holdco Master Lease at a fair market rent based on a customary third-party appraisal process, taking into account all the terms of the Holdco Master Lease and other relevant factors, but in no event will the renewal rent be less than the rent payable in the immediately preceding lease year. The base rent under the Holdco Master Lease will be subject to an adjustment in the form of a rent credit of up to approximately $12 million in each of the first and second years of the Holdco Master Lease. The rent credit is allocated to specific properties based on the trailing twelve- month EBITDA of the particular property Revenues from the Holdco Master Lease and the Original Master Lease for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands and excluding straight-line rental income of $0.3 million, ($4.9) million and $0.8 million, respectively. Year Ended December 31, 2019 2018 2017 Fixed rental income $ 27,628 $ 86,224 $ 112,881 Variable rental income 23,525 65,450 70,987 Total rental income $ 51,153 $ 151,674 $ 183,868 Seritage Recapture Rights The Holdco Master Lease provides the Company with the right to recapture up to approximately 50% of the space occupied by the tenant at all properties (other than five specified properties) and the right to recapture any automotive care centers which are free-standing or attached as “appendages” to the properties, all outparcels or outlots and certain portions of parking areas and common areas. Upon exercise of any of these partial recapture rights the Company will generally incur, as applicable, certain costs and expenses for the separation of the recaptured space from the remaining tenant space. Additionally, in contrast to the Original Master Lease, which permitted the Company to recapture 100% of certain properties upon payment of a specified recapture fee, the Holdco Master Lease provides the Company with the right, beginning in March 2020, to recapture 100% of the space occupied by the tenant at any of the properties included in the Holdco Master Lease (other than five specified properties) without paying a recapture fee. This right to recapture 100% of any property is limited to 10 properties in each year of the Holdco Master Lease term, with carry-over rights if less than 10 properties are recaptured in any given lease year. In the event of a 100% recapture of a property (or termination of a property by Holdco that is subject to a termination fee) and any subsequent redevelopment of such property for retail purposes, Holdco has certain rights of first offer to lease space at specified predefined rates depending on the condition the space is delivered. If the Company does not provide Holdco with a right of first offer on at least one-third of any such properties that are recaptured 100% by the Company (or terminated by Holdco with payment of a termination fee) in a given lease year, then the Company’s 100% recaptures rights are subject to payment of a recapture fee until such time as the Company has complied with the foregoing ratio. Upon the exercise of any of its recapture rights, the Company can reconfigure and rent the recaptured space to new, diversified tenants on potentially superior terms as determined by the Company and for its own account. The Company had previously exercised certain recapture rights with respect to 70 properties under the Original Master Lease prior to its rejection on March 12, 2019, and exercised recapture rights with respect to four properties under the Holdco Master Lease during the year ended December 31, 2019, including three properties where the Company had previously exercised certain recapture rights under the Original Master Lease. The following table provides a summary of the Company’s recapture activity: (in thousands except property count) Year Square Feet Total Number of Properties 100% Recaptures (1) Partial Recaptures (2) 2019 629 4 3 1 2018 3,428 20 17 3 2017 3,302 27 16 11 2016 1,501 17 4 13 2015 372 3 3 — Total 9,232 71 43 28 (1) Includes properties for which the Company had converted partial recapture rights to 100% recapture rights. (2) Partial recaptures include the recapture of (i) up to approximately 50% of the space occupied by the tenant at all properties, (ii) automotive care centers which are free-standing or attached as “appendages” to the properties, and/or (iii) outparcels or outlots and certain portions of parking areas and common areas. Holdco Termination Rights Under the terms of the Holdco Master Lease, Holdco has the right, at any time, to terminate the Holdco Master Lease with respect to any property upon the payment of a termination fee equal to one year of base rent plus annual taxes and other operating expenses. Additionally, beginning in March 2020, the tenant has the right to terminate without payment of a termination fee: (i) up to 16 properties in the second year of the term of the Holdco Master Lease, (ii) up to 12 properties in the third year, (iii) up to 10 properties in the fourth year, and (iv) thereafter, the remaining properties, in each instance with carry over rights if less than the maximum permitted number of properties are terminated in any lease year. Sears Holdings exercised termination rights with respect to 87 properties under the Original Master Lease prior to its rejection on March 12, 2019 and Holdco exercised termination rights with respect to 29 properties under the Holdco Master Lease during the year ended December 31, 2019. The following table provides a summary of Sears Holdings’ and Holdco’s termination activity (excluding 31 properties totaling 4.3 million square feet that were rejected on March 12, 2019 as part of Sears Holdings’ bankruptcy filing): (in thousands except property count) Notice Date Termination Date Square Feet Total Number of Properties Number of Properties Redeveloped by the Company Number of Properties Sold by the Company November 2019 March 2020 4,332 29 7 1 August 2018 December 2018 1,605 13 6 3 June 2018 November 2018 (1) 1,218 9 6 1 April 2018 August 2018 1,494 9 4 1 June 2017 October 2017 (2) 3,812 20 8 4 January 2017 April 2017 1,872 19 7 8 September 2016 January 2017 1,727 17 8 6 Total 16,060 116 46 24 (1) Two properties were terminated in October 2018. (2) One property was terminated in November 2017 and another one was terminated in January 2018. As of December 31, 2019, the Company had commenced or completed redevelopment projects at 46 of the terminated properties, and sold an additional 24 of the terminated properties, and will continue to announce redevelopment activity as new leases are signed to occupy the space formerly occupied by Sears or Kmart. Lessor Disclosures Future minimum rental receipts, excluding variable payments and tenant reimbursements of expenses, under non-cancelable operating leases executed as of December 31, 2019 and December 31, 2018 is approximately as follows: (in thousands) December 31, 2019 2020 113,265 2021 121,909 2022 124,067 2023 119,745 2024 116,607 Thereafter 1,019,054 Total Lease Payments $ 1,614,647 (in thousands) December 31, 2018 2019 $ 120,132 2020 122,263 2021 125,963 2022 124,949 2023 120,672 Thereafter 412,789 Total Lease Payments $ 1,026,768 The components of lease revenues for the years ended December 31, 2019, December 31, 2018 and December 31, 2017 were as follows: Year Ended December 31, (in thousands) 2019 2018 2017 Fixed rental income 104,956 140,661 154,599 Variable rental income 45,994 74,839 81,528 Total rental income $ 150,950 $ 215,500 $ 236,127 Lessee Disclosures The Company has one ground lease and multiple corporate office leases which are classified as operating leases. The Company initially recorded $8.6 million of right-of-use, or ROU, assets and lease liabilities. The Company’s ROU assets were subsequently increased by $11.0 million as a result of the reclassification of acquired below-market lease assets, net, from lease intangible assets, net, during the years ended 2019. As of December 31, 2019, the outstanding amount of ROU assets were $18.5 million. The Company recorded rent expense related to leased corporate office space of $1.6 million, $0.7 million, and $0.7 million for the years ended December 31, 2019, December 31, 2018 and December 31, 2017, respectively. Such rent expense is classified within general and administrative expenses on the consolidated statements of operations. In addition, the Company recorded ground rent expense of approximately $45 thousand for each of the years ended December 31, 2019, December 31, 2018 and December 31, 2017, respectively. Such rent expense is classified within general and administrative expenses on the consolidated statements of operations. The ground lease requires the Company to make fixed annual rental payments and expires in 2073 assuming all extension options are exercised. The following table sets forth information related to the measurement of our lease liabilities as of December 31, 2019: (dollar amounts in thousands) As of December 31, 2019 Weighted average remaining lease term (in years) 10.54 Weighted average discount rate 7.20 % Cash paid for operating leases $ 2,161

Debt

Debt	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt	Note 6 – Debt Term Loan Facility On July 31, 2018, the Operating Partnership, as borrower, and the Company, as guarantor, entered into a Senior Secured Term Loan Agreement (the “Term Loan Agreement”) providing for a The Term Loan Facility matures on July 31, 2023. The Company used a portion of the proceeds from the Initial Funding to (i) repay existing indebtedness and (ii) pay transaction and related costs. The remaining proceeds from the Initial Funding, as well as borrowings under the Incremental Funding Facility, will be used to fund the Company’s redevelopment pipeline and to pay operating expenses of the Company and its subsidiaries Funded amounts under the Term Loan Facility bear interest at an annual rate of 7.0% and unfunded amounts under the Incremental Funding Facility are subject to an annual fee of 1.0% until drawn. The Company prepays the annual fee and amortizes the expense to interest expense on the consolidated statements of operations. As of December 31, 2019, the aggregate principal amount outstanding under the Term Loan Facility was $1.6 billion. The Company’s ability to access the Incremental Funding Facility is subject to (i) the Company achieving rental income from non-Sears Holdings tenants, on an annualized basis (after giving effect to SNO Leases expected to commence rent payment within 12 months) for the fiscal quarter ending prior to the date of incurrence of the Incremental Funding Facility, of not less than $200 million and (ii) the Company’s good faith projection that rental income from non-Sears Holdings tenants (after giving effect to SNO Leases expected to commence rent payment within 12 months) for the succeeding four consecutive fiscal quarters (beginning with the fiscal quarter during which the incremental facility is accessed) will be not less than $200 million. The Term Loan Facility is guaranteed by the Company and, subject to certain exceptions, is required to be guaranteed by all existing and future subsidiaries of the Borrower. The Term Loan Facility is secured on a first lien basis by a pledge of the capital stock of the direct subsidiaries of the Borrower and the guarantors, including its joint venture interests, except as prohibited by the organizational documents of such entities or any joint venture agreements applicable to such entities, and contains a requirement to provide mortgages and other customary collateral upon the breach of certain financial metrics described below, the occurrence and continuation of an event of default and certain other conditions set forth in the Term Loan Agreement . The Term Loan Facility includes certain financial metrics to govern springing collateral requirements and certain covenant exceptions set forth in the Term Loan Agreement, including: (i) a total fixed charge coverage ratio of not less than 1.00 to 1.00 for each fiscal quarter beginning with the fiscal quarter ending September 30, 2018 through the fiscal quarter ending June 30, 2021, and not less than 1.20 to 1.00 for each fiscal quarter thereafter; (ii) an unencumbered fixed charge coverage ratio of not less than 1.05 to 1.00 for each fiscal quarter beginning with the fiscal quarter ending September 30, 2018 through the fiscal quarter ending June 30, 2021, and not less than 1.30 to 1.00 for each fiscal quarter thereafter; (iii) a total leverage ratio of not more than 65 %; (iv) an unencumbered ratio of not more than 60 %; and (v) a minimum net worth of at least $ 1.2 billion. Any failure to satisfy any of these financial metrics limit s the Company’s ability to dispose of assets via sale or joint venture and trigger s the springing mortgage and collateral requirements but will not result in an event of default. The Term Loan Facility also includes certain limitations relating to, among other activities, the Company’s ability to: sell assets or merge, consolidate or transfer all or substantially all of its assets; incur additional debt; incur certain liens; enter into, terminate or modify certain material leases and/or the material agreements for the Company’s properties; make certain investments (including limitations on joint ventures) and other restricted payments; pay distributions on or repurchase the Company’s capital stock; and enter into certain transactions with affiliates. The Term Loan Facility contains customary events of default, including (subject to certain materiality thresholds and grace periods) payment default, material inaccuracy of representations or warranties, and bankruptcy or insolvency proceedings. If there is an event of default, the lenders may declare all or any portion of the outstanding indebtedness to be immediately due and payable, exercise any rights they might have under any of the Term Loan Facility documents, and require the Company to pay a default interest rate on overdue amounts equal to 2.0% in excess of the then applicable interest rate. As of December 31, 2019, the Company was not in compliance with certain of the financial metrics described above. As a result, the Company must receive the consent of Berkshire Hathaway to dispose of assets via sale or joint venture and, as of December 31, 2019, Berkshire Hathaway had provided such consent for all such transactions submitted for approval. Additionally, Berkshire Hathaway has the right to request mortgages against the Company’s assets pursuant to the mortgage and collateral requirement. During the year ended December 31, 2019, Berkshire Hathaway requested mortgages on a majority of the Company’s portfolio which were recorded in accordance with the requirement (the “Lender Request”). There are no other changes to the terms and conditions of the Term Loan Facility, or the Company’s ability to operate thereunder, as a result of providing mortgages against any of the Company’s assets pursuant to the mortgage and collateral requirement. The Company accounted for the Lender Request transaction as a modification of debt as of December 31, 2019. Related to the modification, the Company incurred $5.0 million mortgage recording costs which are classified as interest expenses on the consolidated statements of operations. The Company believes it is in compliance with all other terms and conditions of the Term Loan Agreement. The Company incurred $2.1 million of debt issuance costs related to the Term Loan Facility which are recorded as a direct deduction from the carrying amount of the Term Loan Facility and amortized over the term of the Term Loan Agreement. As of December 31, 2019, the unamortized balance of the Company’s debt issuance costs was $1.5 million. Mortgage Loans Payable On July 7, 2015, pursuant to the Transaction, the Company entered into a mortgage loan agreement (the “Mortgage Loan Agreement”) and mezzanine loan agreement (collectively, the “Mortgage Loan Agreements”), providing for term loans in an initial principal amount of approximately $1,161 million (collectively, the “Mortgage Loans”) and a $100 million future funding facility (the “Future Funding Facility”). The Mortgage Loans and Future Funding Facility were secured by all of the Company’s Wholly Owned Properties and a pledge of its equity in the JVs. Pursuant to the terms of the Mortgage Loan Agreements, amounts available under the Future Funding Facility were fully drawn by the Company on June 30, 2017. Such amounts were deposited into a redevelopment reserve and used to fund redevelopment activity at the Company’s properties. Interest under the Mortgage Loans was due and payable on the payment dates, and all outstanding principal amounts were due when the loan was scheduled to mature on the payment date in July 2019 The Company incurred $22.3 million of debt issuance costs related to the Mortgage Loans and Future Funding Facility which were recorded as a direct deduction from the carrying amount of the Mortgage Loans and Future Funding Facility and amortized over the term of the Mortgage Loan Agreements. During the year ended December 31, 2018, the Company fully amortized the remaining unamortized debt issuance costs as a result of the full repayment of the Mortgage Loans and Future Funding Facility on July 31, 2018. As of December 31, 2019 and December 31, 2018, the Company had no unamortized debt issuance costs related to the Mortgage Loans and Future Funding Facility. On July 31, 2018, the aggregate principal amounts outstanding under the Mortgage Loans and the Future Funding Facility were repaid in full and no amounts were outstanding as of December 31, 2019. Unsecured Delayed Draw Term Loan On February 23, 2017, the Operating Partnership, as borrower, and the Company, as guarantor, entered into a $200 million senior unsecured delayed draw term loan facility (the “Unsecured Delayed Draw Term Loan”) with JPP, LLC and JPP II, LLC as lenders (collectively, the “Original Lenders”) and JPP, LLC as administrative agent. The total commitment of the Lenders under the Unsecured Delayed Draw Term Loan was $200 million and the maturity date was December 31, 2017. On February 23, 2017, the Operating Partnership paid to the Original Lenders an upfront commitment fee equal to $1.0 million. On May 24, 2017, the Operating Partnership paid to the Original Lenders an additional, and final, commitment fee of $1.0 million. The principal amount of loans outstanding under the Unsecured Delayed Draw Term Loan, prior to its repayment, bore a base annual interest rate of 6.50%. Edward S. Lampert, the Company’s Chairman, is the Chairman and Chief Executive Officer of ESL Investments, Inc., which controls JPP, LLC and JPP II, LLC. The terms of the Unsecured Delayed Draw Term Loan were approved by the Company’s Audit Committee and the Company’s Board of Trustees (with Mr. Lampert recusing himself). Unsecured Term Loan On December 27, 2017, the Operating Partnership, as borrower, and the Company, as guarantor, refinanced the Unsecured Delayed Draw Term Loan with a $200 million unsecured term loan facility (the “Unsecured Term Loan”). The principal amount outstanding under the Unsecured Delayed Draw Term Loan at termination was $85 million. No prepayment penalties were triggered and the Unsecured Delayed Draw Term Loan terminated in accordance with its terms. The lenders under the Unsecured Delayed Draw Term Loan, JPP, LLC and JPP II, LLC, maintained their funding of $85 million in the Unsecured Term Loan, with JPP, LLC appointed as administrative agent under the Unsecured Term Loan. An affiliate of Empyrean Capital Partners, L.P., a Delaware limited partnership (and together with JPP, LLC and JPP II LLC, each an “Initial Lender” and collectively, the “Initial Lenders”), funded $60 million under the Unsecured Term Loan, resulting in a total of $145 million committed and funded under the Unsecured Term Loan at closing. The Borrower paid to each Initial Lender an upfront fee in an aggregate amount equal to 1.00% of the principal amount of the loan made by such Initial Lender. Under an accordion feature, the Company had the right to increase the total commitments up to $200 million and place an additional $55 million of incremental loans with the Initial Lenders or new lenders. The Initial Lenders under the Unsecured Term Loan were not obligated to make all or any portion of the incremental loans. The Company used the proceeds of the Unsecured Term Loan, among other things, to refinance the Unsecured Delayed Draw Term Loan, to fund redevelopment projects and for other general corporate purposes. Loans under the Unsecured Term Loan were guaranteed by the Company. The Unsecured Term Loan matured on the earlier of (i) December 31, 2018 and (ii) the date on which the outstanding indebtedness under the Company’s existing mortgage and mezzanine facilities are repaid in full. The Unsecured Term Loan was prepayable at any time in whole or in part, without any penalty or premium. Amounts drawn under the Unsecured Term Loan and repaid may not have been redrawn. The principal amount of loans outstanding under the Unsecured Term Loan bore a base annual interest rate of 6.75%. The Company incurred $1.8 million of debt issuance costs related to the Unsecured Term Loan which was recorded as a direct deduction from the carrying amount of the Unsecured Term Loan and amortized over the term of the loan. During the year ended December 31, 2018, the Company fully amortized the remaining unamortized debt issuance costs as a result of the full repayment of the Unsecured Term Loan on July 31, 2018. As of December 31, 2019 and December 31, 2018, the Company had no unamortized debt issuance costs related to the Unsecured Term Loan. Edward S. Lampert, the Company’s Chairman, is the Chairman and Chief Executive Officer of ESL Investments, Inc., which controls JPP, LLC and JPP II, LLC. The terms of the Unsecured Term Loan were approved by the Company’s Audit Committee and the Company’s Board of Trustees (with Mr. Lampert recusing himself). On July 31, 2018, the principal amounts outstanding under the Unsecured Term Loan were repaid in full and no amounts were outstanding as of December 31, 2019.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 7 – Income Taxes The Company has elected to be taxed as a REIT as defined under Section 856(c) of the Code for U.S. federal income tax purposes and expects to continue to operate to qualify as a REIT. To qualify as a REIT, the Company must meet a number of organizational and operational requirements, including a requirement to currently distribute at least 90% of its adjusted REIT taxable income to its shareholders. As a REIT, the Company generally will not be subject to U.S. federal income tax on taxable income that is distributed to its shareholders. If the Company fails to qualify as a REIT or does not distribute 100% of its taxable income in any taxable year, it will be subject to U.S. federal income tax at regular corporate rates (including for any taxable year ended on or before December 31, 2017, any applicable alternative minimum tax) and any applicable state and local income taxes. Even if the Company qualifies for taxation as a REIT, the Company is subject to certain U.S. state, local and Puerto Rico taxes on its income and property, and to U.S. federal income and excise taxes on its undistributed REIT taxable income. The Company’s taxable REIT subsidiaries are subject to corporate income tax. The Company evaluated whether any uncertain tax positions existed as of December 31, 2019 and 2018 and concluded that there are no uncertain tax positions.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 8 – Fair Value Measurements ASC 820, Fair Value Measurement Level 1 - quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities Level 2 - observable prices based on inputs not quoted in active markets, but corroborated by market data Level 3 - unobservable inputs used when little or no market data is available The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Company also considers counterparty credit risk in its assessment of fair value. Financial Assets and Liabilities Measured at Fair Value on a Recurring or Non-Recurring Basis All derivative instruments were carried at fair value and were valued using Level 2 inputs. The Company had no derivative instruments as of December 31, 2019 (an interest rate cap associated with the Mortgage Loans and Future Funding Facility was terminated subsequent to the repayment of the Mortgage Loans and Future Funding Facility on July 31, 2018). The Company utilized an independent third party and interest rate market pricing models to assist management in determining the fair value of this instrument. The Company had elected not to utilize hedge accounting, and therefore, the change in fair value was included in previous periods within change in fair value of interest rate cap on the consolidated statements of operations. For the year ended December 31, 2019, the Company did not record any gain or loss compared to losses of $23 thousand and $0.7 million for the years ended December 31, 2018 and 2017, respectively. Financial Assets and Liabilities not Measured at Fair Value Financial assets and liabilities that are not measured at fair value on the consolidated balance sheets include cash equivalents, term loan facility and mortgage loans payable. The fair value of cash equivalents is classified as Level 1 and the fair value of term loan facility and mortgage loans payable are classified as Level 2. Cash equivalents are carried at cost, which approximates fair value. The fair value of debt obligations is calculated by discounting the future contractual cash flows of these instruments using current risk-adjusted rates available to borrowers with similar credit ratings. As of December 31, 2019 and December 31, 2018

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 9 – Commitments and Contingencies Insurance The Company maintains general liability insurance and all-risk property and rental value, with sub-limits for certain perils such as floods and earthquakes on each of the Company’s properties. The Company also maintains coverage for terrorism acts as defined by Terrorism Risk Insurance Program Reauthorization Act, which expires in December 2027. Insurance premiums are charged directly to each of the properties. The Company will be responsible for deductibles and losses in excess of insurance coverage, which could be material. The Company continues to monitor the state of the insurance market and the scope and costs of coverage for acts of terrorism. However, the Company cannot anticipate what coverage will be available on commercially reasonable terms in the future. Environmental Matters Under various federal, state and local laws, ordinances and regulations, the Company may be considered an owner or operator of real property or may have arranged for the disposal or treatment of hazardous or toxic substances. As a result, the Company may be liable for certain costs including removal, remediation, government fines and injuries to persons and property. The Company does not believe that any resulting liability from such matters will have a material effect on the consolidated financial position, results of operations or liquidity of the Company. Under the Holdco Master Lease, Holdco is required to indemnify the Company from certain environmental liabilities at the Wholly Owned Properties before or during the period in which each Wholly Owned Property was leased to Holdco, including removal and remediation of all affected facilities and equipment constituting the automotive care center. In addition, an environmental reserve was funded at the closing of the Transaction in the amount of approximately $12.0 million. As of December 31, 2019, the balance of the environmental reserve was approximately $9.5 million. Litigation and Other Matters In accordance with accounting standards regarding loss contingencies, the Company accrues an undiscounted liability for those contingencies where the incurrence of a loss is probable and the amount can be reasonably estimated, and the Company discloses the amount accrued and the amount of a reasonably possible loss in excess of the amount accrued or discloses the fact that such a range of loss cannot be estimated. The Company does not record liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated, or when the liability is believed to be only reasonably possible or remote. On April 18, 2019, at the direction of the Restructuring Sub-Committee of the Restructuring Committee of the Board of Directors of Sears Holdings, Sears Holdings, Sears, Roebuck & Co., Sears Development Co., Kmart Corporation, and Kmart of Washington, LLC filed a lawsuit (the “Litigation”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”) against, among others, Edward S. Lampert, ESL Investments, Inc. and certain of its affiliates and investors, Fairholme Capital Management, L.L.C., certain members of the Sears Holdings board of directors, and the Company, the Operating Partnership, and certain of our affiliates and subsidiaries (the Company, the Operating Partnership, and certain of our affiliates and subsidiaries collectively, the “Seritage Defendants”). The Litigation is dual captioned as In re: Sears Holdings Corporation, et al., Case No. 18-23538 (RDD) and Sears Holdings Corporation et al., v. Lampert et al., Case No. 19-08250 (RDD). The Litigation alleges, among other things, that certain transactions undertaken by Sears Holdings since 2011 constituted actual and/or constructive fraudulent transfers and/or illegal dividends by Sears Holdings. The challenged transactions include the July 2015 transactions giving rise to Seritage, the execution of the Original Master Lease with Sears Holdings, and the acquisition of real estate from Sears Holdings. The Litigation alleges, among other things, that the real estate acquired by Seritage from Sears Holdings in July 2015 was worth at least $649 to $749 million more than the purchase price paid. The Litigation seeks as relief, among other things, declaratory relief, avoidance of the allegedly actual and/or constructive fraudulent transfers and either (i) rescission of the transfers of real estate from Sears Holdings to Seritage in 2015 and return of the proceeds of the transactions between Sears Holdings and Seritage, or, in the alternative, (ii) payment by Seritage to Sears Holdings of damages at least equal to the value of the transferred property. On October 15, 2019, the Bankruptcy Court entered an order (the “Confirmation Order”) confirming the Modified Second Amended Joint Chapter 11 Plan of Sears Holdings and its affiliated debtors (the “Chapter 11 Plan”). Pursuant to the terms of the Confirmation Order, upon the effective date of the Chapter Plan, a liquidating trust will be formed, and the Litigation will vest in the liquidating trust. The Confirmation Order further provides that, prior to the effective date of the Chapter 11 Plan and the formation of the liquidating trust, the Litigation shall be controlled by five litigation designees selected by Sears Holdings and the Unsecured Creditors’ Committee (the “UCC”). For further information, refer to the Chapter 11 Plan, Confirmation Order and liquidating trust agreement, each of which has been publicly filed with the Bankruptcy Court. On February 21, 2020, the Seritage defendants filed a partial motion to dismiss seeking dismissal of the claims in the Amended Complaint relating to the release received in the Sears Holdings derivative litigation, unjust enrichment, and equitable subordination. The Company believes that the claims against the Seritage Defendants in the Litigation are without merit and intends to defend against them vigorously. In addition to the litigation described above, the Company is subject, from time to time, to various legal proceedings and claims that arise in the ordinary course of business. While the resolution of such matters cannot be predicted with certainty, management believes, based on currently available information, that the final outcome of such matters will not have a material effect on the consolidated financial position, results of operations, cash flows or liquidity of the Company. As of December 31, 2019, and December 31, 2018, the Company did not record any amounts for litigation or other matters.

Related Party Disclosure

Related Party Disclosure	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Related Party Disclosure	Note 10 – Related Party Disclosure Edward S. Lampert Edward S. Lampert is the Chairman and Chief Executive Officer of ESL, which owns Holdco, and was Chairman of Sears Holdings. Mr. Lampert is also the Chairman of Seritage. As of December 31, 2019, Mr. Lampert beneficially owned a 33.9% interest in the Operating Partnership and approximately 2.4% and 100% of the outstanding Class A common shares and Class B non-economic common shares, respectively. Subsidiaries of Holdco, as lessees, and subsidiaries of the Company, as lessors, are parties to the Holdco Master Lease and subsidiaries of Sears Holdings, as lessees, and subsidiaries of the Company, as lessors, were parties to the Original Master Lease (see Note 5). Unconsolidated Joint Ventures Certain unconsolidated joint ventures have engaged the Company to provide management, leasing, construction supervision and development services at the properties owned by the unconsolidated joint ventures. Fees for the services performed are reported at 100% of the revenue earned from such joint ventures in management and other fee income on the consolidated statements of operations. The Company’s In addition, as of December 31, 2019, the Company had incurred $9.7 million of development expenditures at properties owned by certain unconsolidated joint ventures for which the Company will be repaid by the respective unconsolidated joint ventures. These amounts are included in tenant and other receivables, net on the Company’s consolidated balance sheets. $2.1 .

Non-Controlling Interests

Non-Controlling Interests	12 Months Ended
	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Non-Controlling Interests	Note 11 – Non-Controlling Interests Partnership Agreement On July 7, 2015, Seritage and ESL entered into the agreement of limited partnership of the Operating Partnership which was amended and restated on December 14, 2017. Pursuant to this partnership agreement, as the sole general partner of the Operating Partnership, Seritage exercises exclusive and complete responsibility and discretion in its day-to-day management, authority to make decisions, and control of the Operating Partnership, and may not be removed as general partner by the limited partners. As of December 31, 2019, the Company held a 66.1% interest in the Operating Partnership and ESL held a 33.9% interest. The portions of consolidated entities not owned by the Company are presented as non-controlling interest as of and during the periods presented.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Shareholders' Equity	Note 12 – Shareholders’ Equity Class A Common Shares On July 7, 2015, the Company issued 22,332,037 Class A common shares at a price of $29.58 per share, for aggregate proceeds of $660.6 million, pursuant to the Rights Offering. The Company incurred costs of approximately $8.2 million related to the Rights Offering. In addition, the Company issued and sold to subsidiaries of each of Brookfield Properties Retail and Simon Property Group, Inc. 1,125,760 Class A common shares at a price of $29.58 per share, or an aggregate purchase price of $33.3 million, in transactions exempt from registration under the Securities Act. The subsidiary of Brookfield Properties Retail liquidated its position during the year ended December 31, 2016 and the subsidiary of Simon Property Group, Inc. liquidated its position during the year ended December 31, 2017. During the year ended December 31, 2019, 1,214,577 OP Units were exchanged for an equal number of Class A shares. As of December 31, 2019, 36,897,364 Class A common shares were issued and outstanding. Class A shares have a par value of $0.01 per share. Class B Non-Economic Common Shares On July 7, 2015, the Company issued and sold to ESL 1,589,020 Class B non-economic common shares of beneficial interest in connection with an exchange of cash and subscription rights for Class B non-economic common shares in a transaction exempt from registration under the Securities Act pursuant to Section 4(a)(2) thereof. The aggregate purchase price for the Class B non-economic common shares purchased by ESL was $0.9 million. The Class B non-economic common shares have voting rights, but do not have economic rights and, as such, do not receive dividends and are not included in earnings per share computations. During the year ended December 31, 2019, 79,829 Class B non-economic common shares were surrendered to the Company. As of December 31, 2019, 1,242,536 Class B non-economic common shares were issued and outstanding. Class B non-economic common shares have a par value of $0.01 per share. Class C Non-Voting Common Shares On July 7, 2015, the Company issued 6,790,635 Class C non-voting common shares at a price of $29.58 per share, for aggregate proceeds of $200.9 million, pursuant to the Rights Offering. The Class C non-voting common shares have economic rights, but do not have voting rights. Upon any transfer of a Class C non-voting common share to any person other than an affiliate of the holder of such share, such share shall automatically convert into one Class A common share. Class B non-economic common shares have a par value of $0.01 per share. As of December 31, 2019, there were no Class C non-voting common shares issued or outstanding. Class C non-voting shares have a par value of $0.01 per share. Series A Preferred Shares In December 2017, the Company issued 2,800,000 7.00% Series A Cumulative Redeemable Preferred Shares (the “Series A Preferred Shares”) in a public offering at $25.00 per share. The Company received net proceeds from the offering of approximately $66.4 million, after deducting payment of the underwriting discount and offering expenses, which it used to fund its redevelopment pipeline and for general corporate purposes The Company may not redeem the Series A Preferred Shares before December 14, 2022 except to preserve its status as a REIT or upon the occurrence of a Change of Control, as defined in the trust agreement addendum designating the Series A Preferred Shares. On and after December 14, 2022, the Company may redeem any or all of the Series A Preferred Shares at $25.00 per share plus any accrued and unpaid dividends. In addition, upon the occurrence of a Change of Control, the Company may redeem any or all of the Series A Preferred Shares for cash within 120 days after the first date on which such Change of Control occurred at $25.00 per share plus any accrued and unpaid dividends. The Series A Preferred Shares have no stated maturity, are not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless the Company redeems or otherwise repurchases them or they are converted. Dividends and Distributions The Company’s Board of Trustees declared the following common stock dividends during 2019 and 2018, with holders of OP Units entitled to an equal distribution per Operating Partnership unit held on the record date: Dividends per Class A and Class C Declaration Date Record Date Payment Date Common Share 2019 February 25 March 29 April 11 $ 0.25 2018 October 23 December 31 January 10, 2019 $ 0.25 July 24 September 28 October 11 0.25 April 24 June 29 July 12 0.25 February 20 March 30 April 12 0.25 As previously disclosed, the Company declared a dividend on the Company’s Class A and Class C common shares for the first quarter of 2019 and has not declared dividends on the Company’s Class A and Class C common shares since that time, based on our Board of Trustees’ assessment of the Company’s investment opportunities and its expectations of taxable income for the remainder of 2020 . The Company intends to, at a minimum, make distributions to our shareholders to comply with the REIT requirements of the Code, which may be satisfied by dividends on the Company’s Series A Preferred shares. The Company declared total dividends of $0.25, $1.00 and $1.00 per common share for the years ended December 31, 2019, 2018 and 2017, respectively. The dividends have been reflected as follows for U.S. federal income tax purposes: Year Ended December 31, 2019 2018 2017 Ordinary income $ — $ 0.01 $ 0.53 Capital gain distributions — 0.35 0.47 Return of capital 0.50 0.39 — Dividends reallocation (1) (0.25 ) 0.25 — Total $ 0.25 $ 1.00 $ 1.00 (1) In 2018, the fourth quarter dividend of 2018 declared on October 23, 2018 was allocated to the 2019 tax year. The Company’s Board of Trustees also declared the following dividends on preferred shares during 2019 and 2018: Declaration Date Record Date Payment Date Preferred Share 2019 October 23 December 31 January 15, 2020 $ 0.43750 July 23 September 30 October 15 0.43750 April 30 June 28 July 15 0.43750 February 25 March 29 April 15 0.43750 2018 October 23 December 31 January 14, 2019 $ 0.43750 July 24 September 28 October 15 0.43750 April 24 June 29 July 16 0.43750 February 20 March 30 April 16 0.43750 February 20 (1) March 30 April 16 0.15556 (1) This dividend covers the period from, and including, December 14, 2017 to December 31, 2017.

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings per Share	Note 13 – Earnings per Share The table below provides a reconciliation of net loss and the number of common shares used in the computations of “basic” earnings per share (“EPS”), which utilizes the weighted-average number of common shares outstanding without regard to dilutive potential common shares, and “diluted” EPS, which includes all such shares. Potentially dilutive securities consist of shares of non-vested restricted stock and the redeemable non-controlling interests in the Operating Partnership. All outstanding non-vested shares that contain non-forfeitable rights to dividends are considered participating securities and are included in computing EPS pursuant to the two-class method which specifies that all outstanding non-vested share-based payment awards that contain non-forfeitable rights to distributions are considered participating securities and should be included in the computation of EPS. Earnings per share has not been presented for Class B shareholders, as they do not have economic rights. Year Ended December 31, (in thousands except per share amounts) 2019 2018 2017 Numerator - Basic and Diluted Net loss $ (90,603 ) $ (114,878 ) $ (120,813 ) Net loss attributable to non-controlling interests 31,206 41,406 47,059 Preferred dividends (4,900 ) (4,903 ) (245 ) Net loss attributable to common shareholders $ (64,297 ) $ (78,375 ) $ (73,999 ) Earnings allocated to unvested participating securities — — — Net loss available to common shareholders - Basic and diluted $ (64,297 ) $ (78,375 ) $ (73,999 ) Denominator - Basic and Diluted Weighted average Class A common shares outstanding 36,413 35,103 28,249 Weighted average Class C common shares outstanding - 457 5,555 Weighted average Class A and Class C common shares outstanding 36,413 35,560 33,804 Net income (loss) per share attributable to Class A and Class C common shareholders $ (1.77 ) $ (2.20 ) $ (2.19 ) No adjustments were made to the numerator for the years ended December 31, 2019, 2018 or 2017 because the Company generated a net loss. During periods of net loss, undistributed losses are not allocated to the participating securities as they are not required to absorb losses. No adjustments were made to the denominator for the years ended December 31, 2019, 2018 or 2017 because (i) the inclusion of outstanding non-vested restricted shares would have had an anti-dilutive effect and (ii) including the non-controlling interest in the Operating Partnership would also require that the share of Operating Partnership loss attributable to such interests be added back to net loss, therefore, resulting in no effect on earnings per share. As of December 31, 2019, 2018 and 2017, there were 349,318, 403,129 and 245,570 shares, respectively, of non-vested restricted shares outstanding.

Share Based Compensation

Share Based Compensation	12 Months Ended
	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share Based Compensation	Note 14 – Share-Based Compensation On July 7, 2015, the Company adopted the Seritage Growth Properties 2015 Share Plan (the “Plan”). The number of shares of common stock reserved for issuance under the Plan is 3,250,000. The Plan provides for grants of restricted shares, share units, other share-based awards, options, and share appreciation rights, each as defined in the Plan (collectively, the "Awards"). Directors, officers, other employees, and consultants of the Company and its subsidiaries and affiliates are eligible for Awards. Restricted Shares and Share Units Pursuant to the Plan, the Company has periodically made grants of restricted shares or share units. The vesting terms of these grants are specific to the individual grant and vary in that a portion of the restricted shares and share units vest in equal annual amounts over the subsequent three years (time-based vesting) and a portion of the restricted shares and share units vest on the third, and in some instances, the fourth anniversary of the grants subject to the achievement of certain performance criteria (performance-based and market-based vesting). In general, participating employees are required to remain employed for vesting to occur (subject to certain limited exceptions). Restricted shares and share units that do not vest are forfeited. Dividends on restricted shares and share units with time-based vesting are paid to holders of such shares and share units and are not returnable, even if the underlying shares or share units do not ultimately vest. Dividends on restricted shares and share units with performance-based vesting are accrued when declared and paid to holders of such shares on the third , and in some instances, the fourth See Note 2 for valuation information related to the grants of the awards that are subject to market-based vesting conditions. The following table summarizes restricted share activity for the grant periods ended December 31, 2019 and 2018: Year Ended December 31, 2019 Year Ended December 31, 2018 Weighted- Weighted- Average Grant Average Grant Shares Date Fair Value Shares Date Fair Value Unvested restricted shares at beginning of period 403,129 $ 41.57 245,570 $ 41.33 Restricted shares granted 76,948 57.04 261,059 40.80 Restricted shares vested (127,767 ) 41.76 (99,956 ) 39.04 Restricted shares forfeited (2,992 ) 45.02 (3,544 ) 38.83 Unvested restricted shares at end of period 349,318 $ 44.88 403,129 $ 41.57 The Company recognized share-based compensation of $6.8 million, $7.5 million and $7.0 million for the years ended December 31, 2018, 2017 and 2016, respectively. Compensation expenses related to the restricted shares are included in general and administrative expenses on the Company's consolidated statements of operations. As of December 31, 2019, there were $7.4 million of total unrecognized compensation costs related to the outstanding restricted shares which is expected to be recognized over a weighted-average period of approximately 1.6 years. As of December 31, 2018, there were $9.3 million of total unrecognized compensation costs related to the outstanding restricted shares which is expected to be recognized over a weighted-average period of approximately 1.9 years.

Quarterly Financial Information

Quarterly Financial Information (unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (unaudited)	Note 15 – Quarterly Financial Information (unaudited) The following table sets forth the selected quarterly financial data for the Company (in thousands, except per share amounts): 2019 2018 First Second Third Fourth First Second Third Fourth Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Total revenue $ 43,860 $ 40,511 $ 47,628 $ 36,634 $ 53,777 $ 49,270 $ 56,593 $ 55,114 Total expenses 56,404 47,952 50,349 69,750 61,147 74,083 76,802 120,839 Net income (loss) (10,894 ) (25,885 ) (16,482 ) (37,342 ) 16,201 (10,602 ) (34,744 ) (85,733 ) Net income (loss) attributable to common shareholders (8,192 ) (18,128 ) (12,103 ) (25,874 ) 9,100 (7,996 ) (23,441 ) (56,038 ) Net income (loss) per share attributable to Class A and Class C common shareholders - Basic (0.23 ) (0.50 ) (0.33 ) (0.70 ) 0.26 (0.23 ) (0.66 ) (1.57 ) Net income (loss) per share attributable to Class A and Class C common shareholders - Diluted (0.23 ) (0.50 ) (0.33 ) (0.70 ) 0.26 (0.23 ) (0.66 ) (1.57 ) Weighted average Class A and Class C common shares outstanding - Basic 35,671 36,291 36,829 36,846 35,414 35,483 35,598 35,589 Weighted average Class A and Class C common shares outstanding - Diluted 35,671 36,291 36,829 36,846 35,501 35,483 35,598 35,589 Certain of the above selected quarterly financial data includes significant depreciation and amortization expense related to the demolition of certain buildings for redevelopment and the accelerated amortization of certain lease intangibles as a result of the recapture of space from, or the termination of space by, Holdco and Sears Holdings. Certain of the above selected quarterly financial data also includes gains on the sale of interests in unconsolidated joint ventures and gains on the sale of real estate. The following table sets forth these selected quarterly financial data for the Company (in thousands, except per share amounts): 2019 2018 First Second Third Fourth First Second Third Fourth Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Depreciation and amortization expense (1) $ 10,800 $ 2,059 $ 4,286 $ 18,548 $ 11,016 $ 26,758 $ 31,444 $ 78,311 Gains on the sale of interests (2) 21,260 11,613 12,445 25,786 41,831 34,187 17,401 2,745 (1) Denotes depreciation and amortization expense related to the demolition of certain buildings for redevelopment and the accelerated amortization of certain lease intangibles. (2) Denotes gains on the on the sale of interests in unconsolidated joint ventures and gains on the sale of real estate.

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2019
Real Estate And Accumulated Depreciation Disclosure [Abstract]
Schedule III - Real Estate and Accumulated Depreciation	SERITAGE GROWTH PROPERTIES SCHEDULE III—REAL ESTATE AND ACCUMULATED DEPRECIATION DECEMBER 31, 2019 (Dollars in thousands) Costs Capitalized Gross Amount at Which Carried Acquisition Costs Subsequent to Acquisition at Close of Period (1) Life Upon Which Buildings and Buildings and Buildings and Accumulated Date Depreciation Name of Center Location Encumbrances Land Improvements Land Improvements Land Improvements Total Depreciation Acquired is Computed Broadway Center Merrillville, IN (2) $ 3,413 $ 3,224 $ — $ 612 $ 3,413 $ 3,836 $ 7,249 $ (1,585 ) July, 2015 (3) Stand-Alone Location Tulsa, OK (2) 2,048 5,386 — 2,767 2,048 8,153 10,201 (1,688 ) July, 2015 (3) Sherwood Plaza Springfield, IL (2) 2,182 5,051 (213 ) 14,796 1,969 19,847 21,816 (1,600 ) July, 2015 (3) Kmart Plaza North Canton, OH (2) 1,044 1,126 — 1 1,044 1,127 2,171 (549 ) July, 2015 (3) North Pointe Plaza Elkhart, IN (2) 1,349 869 — 36 1,349 905 2,254 (386 ) July, 2015 (3) Kedzie Square Chicago, IL (2) 2,385 7,924 — 17 2,385 7,941 10,326 (1,585 ) July, 2015 (3) Ramona Station Ramona, CA (2) 7,239 1,452 — (318 ) 7,239 1,134 8,373 (156 ) July, 2015 (3) Stand-Alone Location Kearney, NE (2) 272 483 — 7,838 272 8,321 8,593 (546 ) July, 2015 (3) Braintree Marketplace Braintree, MA (2) 6,585 5,614 — 11,308 6,585 16,922 23,507 (2,329 ) July, 2015 (3) Western Plaza Mayaguez, PR (2) 564 4,555 — — 564 4,555 5,119 (1,149 ) July, 2015 (3) Stand-Alone Location Delano, CA (2) 1,905 2,208 — — 1,905 2,208 4,113 (592 ) July, 2015 (3) Stand-Alone Location Walnutport, PA (2) 885 3,452 — — 885 3,452 4,337 (1,268 ) July, 2015 (3) Stand-Alone Location St. Clair Shores, MI (2) 2,399 1,797 — (129 ) 2,399 1,668 4,067 (232 ) July, 2015 (3) Stand-Alone Location El Paso, TX (2) 2,008 1,778 — 2,427 2,008 4,205 6,213 (237 ) July, 2015 (3) Stand-Alone Location Hialeah, FL (2) 5,492 2,344 — 13,480 5,492 15,824 21,316 (701 ) July, 2015 (3) Stand-Alone Location North Miami, FL (2) 4,748 2,434 — (278 ) 4,748 2,156 6,904 (323 ) July, 2015 (3) Flower Valley Shopping Center Florissant, MO (2) 2,430 1,607 — 221 2,430 1,828 4,258 (176 ) July, 2015 (3) Stand-Alone Location St. Petersburg, FL (2) 1,653 777 — (279 ) 1,653 498 2,151 (75 ) July, 2015 (3) Stand-Alone Location Riverside, CA (2) 2,670 2,489 — 66 2,670 2,555 5,225 (1,002 ) July, 2015 (3) Kmart Center Antioch, CA (2) 1,594 2,525 — — 1,594 2,525 4,119 (741 ) July, 2015 (3) Hillside Plaza Manistee, MI (2) 508 3,045 — (625 ) 508 2,420 2,928 (330 ) July, 2015 (3) Thornton Place Thornton, CO (2) 1,881 1,300 — 2,899 1,881 4,199 6,080 (378 ) July, 2015 (3) Stand-Alone Location Jefferson City, MO (2) 957 2,224 — 285 957 2,509 3,466 (743 ) July, 2015 (3) Stand-Alone Location New Iberia, LA (2) 450 1,819 — 6,629 450 8,448 8,898 (1,057 ) July, 2015 (3) Center of Osceola Kissimmee, FL (2) 2,107 2,556 — 47 2,107 2,603 4,710 (925 ) July, 2015 (3) Stand-Alone Location Steger, IL (2) 589 2,846 — — 589 2,846 3,435 (479 ) July, 2015 (3) Beachway Plaza Bradenton, FL (2) 1,420 1,479 — (414 ) 1,420 1,065 2,485 (155 ) July, 2015 (3) Mill Creek Marketplace McKinleyville, CA (2) 1,354 1,655 — — 1,354 1,655 3,009 (646 ) July, 2015 (3) Antelope Square Layton, UT (2) 2,234 974 — 4,792 2,234 5,766 8,000 (832 ) July, 2015 (3) Stand-Alone Location Honolulu, HI (2) 6,824 2,195 — 21,276 6,824 23,471 30,295 (1,779 ) July, 2015 (3) Pennyrile Marketplace Hopkinsville, KY (2) 553 2,815 — 2,202 553 5,017 5,570 (461 ) July, 2015 (3) Stand-Alone Location Santa Paula, CA (2) 2,002 1,147 — — 2,002 1,147 3,149 (676 ) July, 2015 (3) Big Bear Lake Shopping Center Big Bear Lake, CA (2) 3,664 2,945 — 66 3,664 3,011 6,675 (792 ) July, 2015 (3) Sidney Plaza Sidney, NY (2) 1,942 1,769 — (641 ) 1,942 1,128 3,070 (154 ) July, 2015 (3) Stand-Alone Location Olean, NY (2) 249 2,124 — 5,133 249 7,257 7,506 (422 ) July, 2015 (3) Kmart & Lowes Shopping Center Lebanon, PA (2) 1,333 2,085 — (952 ) 1,333 1,133 2,466 (154 ) July, 2015 (3) South River Colony Edgewater, MD (2) 5,534 2,116 — (630 ) 5,534 1,486 7,020 (202 ) July, 2015 (3) Columbus Centre Columbus, MS (2) 2,940 2,547 — 1,187 2,940 3,734 6,674 (1,445 ) July, 2015 (3) Costs Capitalized Gross Amount at Which Carried Acquisition Costs Subsequent to Acquisition at Close of Period (1) Life Upon Which Buildings and Buildings and Buildings and Accumulated Date Depreciation Name of Center Location Encumbrances Land Improvements Land Improvements Land Improvements Total Depreciation Acquired is Computed Stand-Alone Location Rehoboth Beach, DE (2) $ 714 $ 4,523 $ (134 ) $ 6,837 $ 580 $ 11,360 $ 11,940 $ (1,860 ) July, 2015 (3) Stand-Alone Location Kenton, OH (2) 340 417 — (233 ) 340 184 524 (25 ) July, 2015 (3) Ponce Towne Center Ponce, PR (2) 473 3,965 — — 473 3,965 4,438 (953 ) July, 2015 (3) Boulevard Market Fair Anderson, SC (2) 1,297 638 — 9,325 1,297 9,963 11,260 (1,547 ) July, 2015 (3) Stand-Alone Location Deming, NM (2) 1,085 1,194 — — 1,085 1,194 2,279 (586 ) July, 2015 (3) Stand-Alone Location Charles City, IA (2) 793 1,914 — — 793 1,914 2,707 (763 ) July, 2015 (3) Plaza Guaynabo Guaynabo, PR (2) 1,603 26,695 — 5,042 1,603 31,737 33,340 (4,518 ) July, 2015 (3) Rexville (Bayamon) Towne Center Bayamon, PR (2) 656 7,173 — 1 656 7,174 7,830 (1,318 ) July, 2015 (3) Stand-Alone Location Algona, IA (2) 644 2,796 — — 644 2,796 3,440 (692 ) July, 2015 (3) Webster City Plaza Webster City, IA (2) 392 896 — — 392 896 1,288 (301 ) July, 2015 (3) Midtown Shopping Center Madawaska, ME (2) 140 942 — — 140 942 1,082 (191 ) July, 2015 (3) Stand-Alone Location Cullman, AL (2) 947 846 — 4,059 947 4,905 5,852 (410 ) July, 2015 (3) Stand-Alone Location Sault Ste. Marie, MI (2) 946 917 — (478 ) 946 439 1,385 (64 ) July, 2015 (3) Countryside Shopping Center Mount Pleasant, PA (2) 970 1,520 — 2,696 970 4,216 5,186 (281 ) July, 2015 (3) Eastern Commons Shopping Center Henderson, NV (2) 3,124 1,362 — 2,023 3,124 3,385 6,509 (216 ) July, 2015 (3) The Mall at Rockingham Park Salem, NH (2) 3,321 12,198 — 9,766 3,321 21,964 25,285 (2,809 ) July, 2015 (3) Paddock Mall Ocala, FL (2) 2,468 1,150 — (456 ) 2,468 694 3,162 (101 ) July, 2015 (3) Stand-Alone Location St Paul, MN (2) 1,866 1,028 — (309 ) 1,866 719 2,585 (107 ) July, 2015 (3) Square One Mall Saugus, MA (2) 1,656 2,835 — — 1,656 2,835 4,491 (1,250 ) July, 2015 (3) Valley View Center Valley View, TX (2) 4,706 3,230 — (3,230 ) 4,706 - 4,706 - July, 2015 (3) Memorial City SC Memorial, TX (2) 7,967 4,625 — (812 ) 7,967 3,813 11,780 (591 ) July, 2015 (3) Overlake Plaza Redmond Pk, WA (2) 5,133 4,133 10,513 (244 ) 15,646 3,889 19,535 (1,337 ) July, 2015 (3) Westland Shopping Center Lakewood, CO (2) 1,290 4,550 — — 1,290 4,550 5,840 (1,017 ) July, 2015 (3) Superstition Springs Center Mesa/East, AZ (2) 2,661 2,559 — (642 ) 2,661 1,917 4,578 (261 ) July, 2015 (3) Southridge Mall Greendale, WI (2) 3,208 2,340 — 14,406 3,208 16,746 19,954 (594 ) July, 2015 (3) Rhode Island Mall Warwick, RI (2) 9,166 3,388 (696 ) 8,816 8,470 12,204 20,674 (672 ) July, 2015 (3) Caguas Mall Caguas, PR (2) 431 9,362 — — 431 9,362 9,793 (1,604 ) July, 2015 (3) The Mall at Sears Anchorage(Sur), AK (2) 11,517 11,729 — 19,339 11,517 31,068 42,585 (2,247 ) July, 2015 (3) Stand-Alone Location Chicago, IL (2) 905 804 — (241 ) 905 563 1,468 (87 ) July, 2015 (3) Stand-Alone Location Okla City/Sequoyah, OK (2) 1,542 2,210 — 4,631 1,542 6,841 8,383 (539 ) July, 2015 (3) University Mall Pensacola, FL (2) 2,620 2,990 — 6,414 2,620 9,404 12,024 (30 ) July, 2015 (3) Metcalf South Shopping Center Overland Pk, KS (2) 2,775 1,766 — (646 ) 2,775 1,120 3,895 (172 ) July, 2015 (3) Colonie Center Albany, NY (2) 8,289 6,523 — 6,410 8,289 12,933 21,222 (1,260 ) July, 2015 (3) Promenade in Temecula Temecula, CA (2) 6,098 2,214 — 8,525 6,098 10,739 16,837 (1,240 ) July, 2015 (3) Clackamas Town Center Happy Valley, OR (2) 6,659 1,271 — (166 ) 6,659 1,105 7,764 (160 ) July, 2015 (3) Maplewood Mall Maplewood, MN (2) 3,605 1,162 — (521 ) 3,605 641 4,246 (96 ) July, 2015 (3) Stand-Alone Location Shepherd, TX (2) 5,457 2,081 — (510 ) 5,457 1,571 7,028 (244 ) July, 2015 (3) Burnsville Center Burnsville, MN (2) 3,513 1,281 — (505 ) 3,513 776 4,289 (113 ) July, 2015 (3) Costs Capitalized Gross Amount at Which Carried Acquisition Costs Subsequent to Acquisition at Close of Period (1) Life Upon Which Buildings and Buildings and Buildings and Accumulated Date Depreciation Name of Center Location Encumbrances Land Improvements Land Improvements Land Improvements Total Depreciation Acquired is Computed Wolfchase Galleria Cordova, TN (2) $ 2,581 $ 4,279 $ — $ — $ 2,581 $ 4,279 $ 6,860 $ (1,025 ) July, 2015 (3) Pacific View Mall Ventura, CA (2) 5,578 6,172 — — 5,578 6,172 11,750 (841 ) July, 2015 (3) Westfield Galleria at Roseville Roseville, CA (2) 4,848 3,215 — 9,078 4,848 12,293 17,141 (995 ) July, 2015 (3) Westfield Solano Fairfield, CA (2) 3,679 1,366 — 2,348 3,679 3,714 7,393 (587 ) July, 2015 (3) Stand-Alone Location Central Park, TX (2) 5,468 1,457 (1,904 ) 6,171 3,564 7,628 11,192 (133 ) July, 2015 (3) Valley Plaza No Hollywood, CA (2) 8,049 3,172 — 18,546 8,049 21,718 29,767 (1,302 ) July, 2015 (3) Asheville Mall Asheville, NC (2) 4,141 2,036 — (750 ) 4,141 1,286 5,427 (193 ) July, 2015 (3) Stand-Alone Location Memphis/Poplar, TN (2) 2,827 2,475 — 24,740 2,827 27,215 30,042 (2,301 ) July, 2015 (3) Westfield West Covina West Covina, CA (2) 5,972 2,053 — (648 ) 5,972 1,405 7,377 (218 ) July, 2015 (3) Crystal Mall Waterford, CT (2) 1,371 2,534 — — 1,371 2,534 3,905 (881 ) July, 2015 (3) Stand-Alone Location Westwood, TX (2) 2,899 1,748 — (427 ) 2,899 1,321 4,220 (180 ) July, 2015 (3) McCain Mall North Little Rock, AR (2) 1,288 2,881 — 2,016 1,288 4,897 6,185 (399 ) July, 2015 (3) Manchester Center Fresno, CA (2) 1,370 2,000 — (920 ) 1,370 1,080 2,450 (168 ) July, 2015 (3) North Riverside Park Mall N Riverside, IL (2) 1,846 3,178 — 12,822 1,846 16,000 17,846 (1,589 ) July, 2015 (3) Westgate Village Shopping Center Toledo, OH (2) 1,664 1,289 — 17 1,664 1,306 2,970 (669 ) July, 2015 (3) Orlando Fashion Square Orlando Colonial, FL (2) 4,403 3,626 — 16,046 4,403 19,672 24,075 (572 ) July, 2015 (3) Boise Towne Center Boise, ID (2) 1,828 1,848 — — 1,828 1,848 3,676 (641 ) July, 2015 (3) Lincoln Park Shopping Center Lincoln Park, MI (2) 1,106 3,198 — (493 ) 1,106 2,705 3,811 (420 ) July, 2015 (3) Baybrook Mall Friendswd/Baybrk, TX (2) 6,124 2,038 — 2 6,124 2,040 8,164 (905 ) July, 2015 (3) Stand-Alone Location Hicksville, NYC (2) 38,625 19,066 — (888 ) 38,625 18,178 56,803 (2,821 ) July, 2015 (3) Pembroke Mall Virginia Beach, VA (2) 10,413 4,760 — 13,972 10,413 18,732 29,145 (3,477 ) July, 2015 (3) Ingram Park Mall Ingram, TX (2) 4,651 2,560 — — 4,651 2,560 7,211 (887 ) July, 2015 (3) Landmark Mall Alexandria, VA (2) 3,728 3,294 — (738 ) 3,728 2,556 6,284 (383 ) July, 2015 (3) Stand-Alone Location Watchung, NYC (2) 6,704 4,110 — 28,437 6,704 32,547 39,251 (593 ) July, 2015 (3) Tyrone Square Mall St Petersburg, FL (2) 2,381 2,420 — 23,002 2,381 25,422 27,803 (2,209 ) July, 2015 (3) Stand-Alone Location Riverside, CA (2) 4,397 4,407 — (1,136 ) 4,397 3,271 7,668 (508 ) July, 2015 (3) Oglethorpe Mall Savannah, GA (2) 5,285 3,012 — (344 ) 5,285 2,668 7,953 (343 ) July, 2015 (3) Pheasant Lane Mall Nashua, NH (2) 1,794 7,255 — — 1,794 7,255 9,049 (1,082 ) July, 2015 (3) Northwoods Mall Chrlstn/Northwoods, SC (2) 3,576 1,497 — 10,143 3,576 11,640 15,216 (621 ) July, 2015 (3) Park Place Park Mall, AZ (2) 5,207 3,458 — 567 5,207 4,025 9,232 (421 ) July, 2015 (3) Westfield Hialeah Hialeah/Westland, FL (2) 9,683 3,472 — 1,506 9,683 4,978 14,661 (1,368 ) July, 2015 (3) Mall of Acadiana Lafayette, LA (2) 1,406 5,094 — — 1,406 5,094 6,500 (1,508 ) July, 2015 (3) Chula Vista Center Chula Vista, CA (2) 7,315 6,834 — (902 ) 7,315 5,932 13,247 (921 ) July, 2015 (3) Southland Mall Miami/Cutler Rdg, FL (2) 5,219 1,236 — (206 ) 5,219 1,030 6,249 (155 ) July, 2015 (3) Stand-Alone Location Chicago, IL (2) 3,665 3,504 — — 3,665 3,504 7,169 (580 ) July, 2015 (3) Inland Center San Bernardino, CA (2) 4,131 2,066 — (780 ) 4,131 1,286 5,417 (193 ) July, 2015 (3) Florin Mall Florin, CA (2) 1,022 1,366 — (293 ) 1,022 1,073 2,095 (161 ) July, 2015 (3) Westfield Belden Village Canton, OH (2) 1,650 5,854 — 4,894 1,650 10,748 12,398 (722 ) July, 2015 (3) Costs Capitalized Gross Amount at Which Carried Acquisition Costs Subsequent to Acquisition at Close of Period (1) Life Upon Which Buildings and Buildings and Buildings and Accumulated Date Depreciation Name of Center Location Encumbrances Land Improvements Land Improvements Land Improvements Total Depreciation Acquired is Computed Westfield Countryside Clearwater/Cntrysd, FL (2) $ 5,852 $ 17,777 $ — $ 834 $ 5,852 $ 18,611 $ 24,463 $ (3,560 ) July, 2015 (3) Southland Shopping Center Middleburg Hts, OH (2) 698 1,547 — (322 ) 698 1,225 1,923 (190 ) July, 2015 (3) Westfield Parkway El Cajon, CA (2) 10,573 2,883 — 1,709 10,573 4,592 15,165 (288 ) July, 2015 (3) Macomb Mall Roseville, MI (2) 3,286 4,778 — 11,557 3,286 16,335 19,621 (2,583 ) July, 2015 (3) Shops at Tanforan San Bruno, CA (2) 7,854 4,642 — (977 ) 7,854 3,665 11,519 (550 ) July, 2015 (3) Eastridge Mall San Jose-Eastridge, CA (2) 1,531 2,356 — (805 ) 1,531 1,551 3,082 (233 ) July, 2015 (3) Oakland Mall Troy, MI (2) 7,954 2,651 (815 ) 5,719 7,139 8,370 15,509 (1,263 ) July, 2015 (3) Edison Mall Ft Myers, FL (2) 3,168 2,853 — (418 ) 3,168 2,435 5,603 (378 ) July, 2015 (3) Chapel Hill Mall Chapel Hill, OH (2) 444 1,460 — (819 ) 444 641 1,085 (96 ) July, 2015 (3) Greece Ridge Center Rochester-Greece, NY (2) 3,082 1,560 — (380 ) 3,082 1,180 4,262 (171 ) July, 2015 (3) Westfield Broward Plantation, FL (2) 6,933 2,509 — (823 ) 6,933 1,686 8,619 (245 ) July, 2015 (3) Sunrise Mall Citrus Hts-Sunrise, CA (2) 3,778 2,088 — (775 ) 3,778 1,313 5,091 (197 ) July, 2015 (3) Dayton Mall Dayton Mall, OH (2) 2,650 1,223 — 2,360 2,650 3,583 6,233 (273 ) July, 2015 (3) Southbay Pavilion Carson, CA (2) 11,476 5,223 — 17,835 11,476 23,058 34,534 (1,852 ) July, 2015 (3) Stand-Alone Location Middletown, NJ (2) 5,647 2,941 — (1,041 ) 5,647 1,900 7,547 (279 ) July, 2015 (3) Eastview Mal Victor, NY (2) 4,144 1,391 — (397 ) 4,144 994 5,138 (149 ) July, 2015 (3) Westminster Mall Westminster, CA (2) 6,845 5,651 — — 6,845 5,651 12,496 (1,615 ) July, 2015 (3) Greenbrier Mall Chspk/Greenbrier, VA (2) 4,236 1,700 — (482 ) 4,236 1,218 5,454 (177 ) July, 2015 (3) Great Northern Mall Clay, NY (2) 787 4,134 — — 787 4,134 4,921 (1,081 ) July, 2015 (3) Westfield Sarasota Sarasota, FL (2) 3,920 2,200 — — 3,920 2,200 6,120 (947 ) July, 2015 (3) Town Center at Boca Raton Boca Raton, FL (2) 16,089 7,480 — (515 ) 16,089 6,965 23,054 (1,011 ) July, 2015 (3) Aventura Mall Miami, FL (2) 13,264 61,577 — (61,520 ) 13,264 57 13,321 (52 ) July, 2015 (3) Meadows Mall Las Vegas(Meadows), NV (2) 3,354 1,879 — 2,777 3,354 4,656 8,010 (219 ) July, 2015 (3) Northridge Center Salinas, CA (2) 2,644 4,394 — — 2,644 4,394 7,038 (1,233 ) July, 2015 (3) Newpark Mall Newark, CA (2) 4,312 3,268 — (660 ) 4,312 2,608 6,920 (379 ) July, 2015 (3) Desert Sky Mall Phoenix-Desert Sky, AZ (2) 2,605 2,448 — — 2,605 2,448 5,053 (860 ) July, 2015 (3) Miami International Mall Doral(Miami), FL (2) 9,214 2,654 — (600 ) 9,214 2,054 11,268 (298 ) July, 2015 (3) Louis Joliet Mall Joliet, IL (2) 2,557 3,108 — — 2,557 3,108 5,665 (1,488 ) July, 2015 (3) Montclair Plaza Montclair, CA (2) 2,498 2,119 — — 2,498 2,119 4,617 (420 ) July, 2015 (3) Orland Square Orland Park, IL (2) 1,783 974 — (380 ) 1,783 594 2,377 (86 ) July, 2015 (3) Huntington Square Mall East Northport, NY (2) 7,617 2,065 — 20,351 7,617 22,416 30,033 (477 ) July, 2015 (3) Fair Oaks Mall Fairfax, VA (2) 10,873 1,491 — 13,643 10,873 15,134 26,007 (589 ) July, 2015 (3) Glenbrook Square Ft Wayne, IN (2) 3,247 5,476 (796 ) (3,382 ) 2,451 2,094 4,545 (6 ) July, 2015 (3) Tech Ridge Austin, TX (2) 3,164 2,858 (1,453 ) 15,368 1,711 18,226 19,937 (976 ) July, 2015 (3) Moreno Valley Mall at Towngate Moreno Vly, CA (2) 3,898 3,407 — (751 ) 3,898 2,656 6,554 (362 ) July, 2015 (3) Jordan Landing Shopping Center West Jordan, UT (2) 3,190 2,305 — 6,471 3,190 8,776 11,966 (1,645 ) July, 2015 (3) Plaza Carolina Mall Carolina, PR (2) 611 8,640 — — 611 8,640 9,251 (1,726 ) July, 2015 (3) Jefferson Valley Mall Yorktown Hts, NY (2) 3,584 1,569 — (529 ) 3,584 1,040 4,624 (149 ) July, 2015 (3) Costs Capitalized Gross Amount at Which Carried Acquisition Costs Subsequent to Acquisition at Close of Period (1) Life Upon Which Buildings and Buildings and Buildings and Accumulated Date Depreciation Name of Center Location Encumbrances Land Improvements Land Improvements Land Improvements Total Depreciation Acquired is Computed Lakeland Square Lakeland, FL (2) $ 1,503 $ 1,045 $ — $ (378 ) $ 1,503 $ 667 $ 2,170 $ (91 ) July, 2015 (3) Westfield Palm Desert Palm Desert, CA (2) 5,473 1,705 (542 ) (167 ) 4,931 1,538 6,469 (610 ) July, 2015 (3) Meadowood Mall Reno, NV (2) 2,135 5,748 — 1,039 2,135 6,787 8,922 (896 ) July, 2015 (3) Imperial Valley Mall El Centro, CA (2) 3,877 3,977 — — 3,877 3,977 7,854 (1,205 ) July, 2015 (3) Bowie Town Center Bowie, MD (2) 4,583 2,335 — 1,560 4,583 3,895 8,478 (1,030 ) July, 2015 (3) Mall at Sierra Vista Sierra Vista, AZ (2) 1,252 1,791 — — 1,252 1,791 3,043 (525 ) July, 2015 (3) Southgate Mall Yuma, AZ (2) 1,485 1,596 — (401 ) 1,485 1,195 2,680 (179 ) July, 2015 (3) Town Center Mall 81 Santa Maria, CA (2) 3,967 2,635 — — 3,967 2,635 6,602 (638 ) July, 2015 (3) Irving Mall Irving, TX (2) 4,493 5,743 — (722 ) 4,493 5,021 9,514 (753 ) July, 2015 (3) Kentucky Oaks Mall Paducah, KY (2) 1,022 2,868 — 9,151 1,022 12,019 13,041 (1,037 ) July, 2015 (3) Lindale Mall Cedar Rapids, IA (2) 2,833 2,197 — (457 ) 2,833 1,740 4,573 (245 ) July, 2015 (3) Prescott Gateway Prescott, AZ (2) 1,071 835 — (305 ) 1,071 530 1,601 (68 ) July, 2015 (3) Stand-Alone Location Melbourne, FL (2) 2,441 1,981 — (650 ) 2,441 1,331 3,772 (200 ) July, 2015 (3) Merced Mall Merced, CA (2) 2,534 1,604 — (634 ) 2,534 970 3,504 (146 ) July, 2015 (3) Janss Marketplace Thousand Oaks, CA (2) 9,853 14,785 — 7,102 9,853 21,887 31,740 (3,722 ) July, 2015 (3) West Towne Mall Madison-West, WI (2) 3,053 2,130 — 14,789 3,053 16,919 19,972 (1,011 ) July, 2015 (3) The Mall of New Hampshire Manchester, NH (2) 1,458 4,160 — 3,557 1,458 7,717 9,175 (1,086 ) July, 2015 (3) Warrenton Village Warrenton, VA (2) 1,956 2,480 — 1,731 1,956 4,211 6,167 (713 ) July, 2015 (3) Fox Run Mall Portsmouth, NH (2) 3,934 3,375 — (739 ) 3,934 2,636 6,570 (383 ) July, 2015 (3) Panama City Mall Panama City, FL (2) 3,227 1,614 — (461 ) 3,227 1,153 4,380 (167 ) July, 2015 (3) Shopping Center Peoria, AZ (2) 1,204 509 — 219 1,204 728 1,932 (44 ) July, 2015 (3) Stand-Alone Location Phoenix , AZ (2) 568 1,088 — 13 568 1,101 1,669 (632 ) July, 2015 (3) Kmart Shopping Center Orange Park, FL (2) 1,477 1,701 — 462 1,477 2,163 3,640 (795 ) July, 2015 (3) Homewood Square Homewood, IL (2) 3,954 4,766 — 36 3,954 4,802 8,756 (1,463 ) July, 2015 (3) Stand-Alone Location Lombard, IL (2) 2,685 8,281 — — 2,685 8,281 10,966 (1,379 ) July, 2015 (3) Stand-Alone Location Ypsilanti, MI (2) 2,462 1,277 — (515 ) 2,462 762 3,224 (119 ) July, 2015 (3) Kickapoo Corners Springfield, MO (2) 922 2,050 — 47 922 2,097 3,019 (611 ) July, 2015 (3) Landmark Center Greensboro, NC (2) 3,869 4,387 — 423 3,869 4,810 8,679 (887 ) July, 2015 (3) Stand-Alone Location Houston, TX (2) 6,114 1,515 — (525 ) 6,114 990 7,104 (132 ) July, 2015 (3) King of Prussia King of Prussia, PA (2) - 42,300 — 2,982 - 45,282 45,282 (7,048 ) July, 2015 (3) Construction in Progress Various (2) - — — 338,672 — 338,672 338,672 - n/a (3) $ 663,044 $ 693,550 $ 3,960 $ 757,775 $ 667,004 $ 1,451,325 $ 2,118,329 $ (147,696 ) (1) The aggregate cost of land, building and improvements (which includes construction in process) for U.S. federal income tax purposes is approximately $2.5 billion. (2) The Term Loan Facility is secured on a first lien basis by individual mortgages and a pledge of the capital stock of the direct subsidiaries of the Company, including those that own each of the Company’s properties. See Note 6. (3) Depreciation is computed based on the following estimated useful lives: Building: 25 – 40 years Site improvements: 5 – 15 years Tenant improvements: shorter of the estimated useful life or non-cancelable term of lease F-44 SERITAGE GROWTH PROPERTIES NOTES TO SCHEDULE III (Dollars in thousands) Reconciliation of Real Estate 2019 2018 2017 Balance at beginning of period $ 1,889,014 $ 1,854,043 $ 1,734,892 Additions 364,970 318,820 257,933 Impairments — — — Dispositions (95,270 ) (244,815 ) (71,117 ) Write-offs (40,385 ) (39,034 ) (67,665 ) Balance at end of period $ 2,118,329 $ 1,889,014 $ 1,854,043 Reconciliation of Accumulated Depreciation 2019 2018 2017 Balance at beginning of period $ 137,947 $ 139,483 $ 89,940 Depreciation expense 59,289 50,272 120,709 Dispositions (9,174 ) (12,772 ) (3,501 ) Write-offs (40,366 ) (39,036 ) (67,665 ) Balance at end of period $ 147,696 $ 137,947 $ 139,483

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). The consolidated financial statements include the accounts of the Company, the Operating Partnership, each of their wholly-owned subsidiaries, and all other entities in which they have a controlling financial interest or entities that meet the definition of a variable interest entity (“VIE”) in which the Company has, as a result of ownership, contractual interests or other financial interests, both the power to direct activities that most significantly impact the economic performance of the VIE and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. All intercompany accounts and transactions have been eliminated. If the Company has an interest in a VIE but it is not determined to be the primary beneficiary, the Company accounts for its interest under the equity method of accounting. Similarly, for those entities which are not VIEs and over which the Company has the ability to exercise significant influence, but does not have a controlling financial interest, the Company accounts for its interests under the equity method of accounting. The Company continually reconsiders its determination of whether an entity is a VIE and whether the Company qualifies as its primary beneficiary. As of December 31, 2019 and December 31, 2018, the Company has several unconsolidated VIEs in the form of joint ventures (see Note 4). The Company does not consolidate these entities because the Company is not the primary beneficiary and the nature of its involvement in the activities of these entities does not give the Company power over decisions that significantly affect these entities’ economic performance. As of December 31, 2019, the Company holds a 66.1% interest in the Operating Partnership and is the sole general partner which gives the Company exclusive and complete responsibility for the day-to-day management, authority to make decisions, and control of the Operating Partnership. The Company has determined that the Operating Partnership is a VIE as the limited partners in the Operating Partnership, although entitled to vote on certain matters, do not possess kick-out rights or substantive participating rights. Accordingly, the Company consolidates its interest in the Operating Partnership. The assets and liabilities of the Operating Partnership are the same as those of the Company and are presented in the consolidated balance sheet. To the extent such variable interests are in entities that are not evaluated under the VIE model, the Company evaluates its interests using the voting interest entity model.
Reclassification	Reclassification Upon adoption on January 1, 2019 of the new lease standard in accordance with ASC 842, tenant reimbursements for 2018 and 2017 have been reclassified to rental income in the consolidated statements of operations to conform to the 2019 financial statement presentation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The most significant assumptions and estimates relate to the useful lives of tangible and intangible assets, real estate impairment assessments, and assessing the recoverability of accounts receivable. These estimates are based on historical experience and other assumptions which management believes are reasonable under the circumstances. Management evaluates its estimates on an ongoing basis and makes revisions to these estimates and related disclosures as experience develops or new information becomes known. Actual results could differ from these estimates.
Segment Reporting	Segment Reporting The Company currently operates in a single reportable segment which includes the acquisition, ownership, development, redevelopment, management, and leasing of real estate properties. The Company’s chief operating decision maker, its Chief Executive Officer, assesses and measures the operating and financial results for each property on an individual basis and does not distinguish or group properties based on geography, size, or type. The Company, therefore, aggregates all properties into one reportable segment due to their similarities with regard to the nature and economics of the properties, tenants, and operational process. Real Estate Investments Real estate assets are recorded at cost, less accumulated depreciation and amortization. Expenditures for ordinary repairs and maintenance will be expensed as incurred. Significant renovations which improve the property or extend the useful life of the assets are capitalized. As real estate is undergoing redevelopment activities, all amounts directly associated with and attributable to the project, including planning, development and construction costs, interest costs, personnel costs of employees directly involved, and other miscellaneous costs incurred during the period of redevelopment, are capitalized. The capitalization period begins when redevelopment activities are underway and ends when the project is substantially complete. Depreciation of real estate assets, excluding land, is recognized on a straight-line basis over their estimated useful lives as follows: Buildings: 25 – 40 years Site improvements: 5 – 15 years Tenant improvements: shorter of the estimated useful life or non-cancelable term of lease The Company amortizes identified intangibles that have finite lives over the period they are expected to contribute directly or indirectly to the future cash flows of the property or business acquired, generally the remaining non-cancelable term of a related lease. On a periodic basis, management assesses whether there are indicators that the value of the Company’s real estate assets (including any related intangible assets or liabilities) may be impaired. If an indicator is identified, a real estate asset is considered impaired only if management’s estimate of current and projected operating cash flows (undiscounted and unleveraged), taking into account the anticipated and probability weighted holding period, are less than a real estate asset’s carrying value. Various factors are considered in the estimation process, including expected future operating income, trends and prospects and the effects of demand, competition, and other economic factors. Changes in any estimates and/or assumptions, including the anticipated holding period, could have a material impact on the projected operating cash flows. If management determines that the carrying value of a real estate asset is impaired, a loss will be recorded for the excess of its carrying amount over its estimated fair value. No impairment losses were recognized for the years ended December 31, 2019, 2018 or 2017. Real Estate Dispositions The following table summarizes our gain on sale of real estate, net during the years ended December 31, 2019, 2018, and 2017 (in thousands): Year Ended December 31, 2019 2018 2017 Contributions to unconsolidated joint ventures Gross proceeds $ 21.7 $ 232.7 $ 57.5 Gain (loss) on sale of real estate, net 3.9 63.9 11.4 Dispositions to third parties Gross proceeds $ 144.3 $ 114.3 $ — Gain (loss) on sale of real estate, net 63.7 29.5 — Total gains on contributions and dispositions, net $ 67.6 $ 93.4 $ 11.4
Real Estate Held for Sale	For the year ended December 31, 2019, gain on sales on the consolidated statements of operations also includes a gain of $6.9 million related to an exchange of land parcels of approximately equal size with an adjacent land owner and a loss of $2.3 million related to the West Hartford JV revaluation as discussed in Note 4. Real Estate Held for Sale When a real estate asset is identified by management as held for sale, the Company ceases depreciation of the asset and estimates its fair value, net of estimated costs to sell. If the estimated fair value, net of estimated costs to sell, of an asset is less than its net carrying value, an adjustment is recorded to reflect the estimated fair value. Properties classified as real estate held for sale generally represent properties that are under contract for sale and are expected to close within a year. In evaluating whether a property meets the held for sale criteria, the Company makes a determination as to the point in time that it is probable that a sale will be consummated. Given the nature of all real estate sales contracts, it is not unusual for such contracts to allow potential buyers a period of time to evaluate the property prior to formal acceptance of the contract. In addition, certain other matters critical to the final sale, such as financing arrangements, often remain pending even upon contract acceptance. As a result, properties under contract may not close within the expected time period or at all. As of December 31, 2019, two properties were classified as held for sale with assets of $5.3 million and no liabilities , and as of December 31, 2018, one property was classified as held for sale with assets of $3.1 million and no liabilities.
Investments in Unconsolidated Joint Ventures	Investments in Unconsolidated Joint Ventures The Company accounts for its investments in unconsolidated joint ventures using the equity method of accounting as the Company exercises significant influence, but does not control these entities. These investments are initially recorded at cost and are subsequently adjusted for cash contributions, cash distributions, and earnings which are recognized in accordance with the terms of the applicable agreement. On a periodic basis, management assesses whether there are indicators, including the operating performance of the underlying real estate and general market conditions, that the value of the Company’s investments in unconsolidated joint ventures may be impaired. An investment’s value is impaired only if management’s estimate of the fair value of the Company’s investment is less than its carrying value and such difference is deemed to be other-than-temporary. To the extent impairment has occurred, the loss is measured as the excess of the carrying amount of the investment over its estimated fair value. No such impairment losses were recognized for the years ended December 31, 2019, 2018 or 2017.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers instruments with an original maturity of three months or less to be cash and cash equivalents. Cash and cash equivalent balances may, at a limited number of banks and financial institutions, exceed insurable amounts. The Company believes it mitigates this risk by investing in or through major financial institutions and primarily in funds that are insured by the United States federal government.
Restricted Cash	Restricted Cash Restricted cash represents cash deposited in escrow accounts which generally can only be used for the payment of real estate taxes, debt service, insurance, and future capital expenditures as required by certain loan and lease agreements, as well as legally restricted tenant security deposits. As of December 31, 2019 and December 31, 2018, the Company did not have any restricted cash . Restricted cash accounts were closed in conjunction with the full repayment of the Mortgage Loans and the Future Funding Facility on July 31, 2018.
Tenant and Other Receivables	Tenant and Other Receivables Accounts receivable includes unpaid amounts billed to tenants, accrued revenues for future billings to tenants for property expenses, and amounts arising from the straight-lining of rent. The Company periodically reviews its receivables for collectability, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates, and economic conditions in the area where the property is located. For accrued rental income related to the straight-line method of reporting rental income, the Company performs a periodic review of receivable balances to assess the risk of uncollectible amounts and establish appropriate provisions. Any receivables that are deemed to be uncollectible are recognized as a reduction to rental income in the Company’s consolidated statements of operations. Prior period provision for doubtful accounts is presented on the Company's consolidated statements of operations in accordance with the Company's previous presentation and has not been reclassified to rental income. Tenant and other receivables also include management fees receivable for services performed for the benefit of certain unconsolidated joint ventures. In the event that the collectability of a management fee receivable is in doubt, a provision for uncollectible amounts will be established or a direct write-off of the specific receivable will be made.
Revenue Recognition	Revenue Recognition Rental income is comprised of base rent and reimbursements of property operating expenses. Base rent is recognized on a straight-line basis over the non-cancelable terms of the related leases. For leases that have fixed and measurable base rent escalations, the difference between such rental income earned and the cash rent due under the provisions of the lease is recorded as deferred rent receivable and included as a component of tenant and other receivables on the consolidated balance sheets. In leasing tenant space, the Company may provide funding to the lessee through a tenant allowance. In accounting for a tenant allowance, the Company will determine whether the allowance represents funding for the construction of leasehold improvements and evaluate the ownership of such improvements. If the Company is considered the owner of the improvements for accounting purposes, the Company will capitalize the amount of the tenant allowance and depreciate it over the shorter of the useful life of the improvements or the related lease term. If the tenant allowance represents a payment for a purpose other than funding leasehold improvements, or in the event the Company is not considered the owner of the improvements for accounting purposes, the allowance is considered a lease incentive and is recognized over the lease term as a reduction of rental revenue on a straight-line basis. The Company commences recognizing revenue based on an evaluation of several factors. Revenue recognition under a lease begins when the lessee takes control of the physical use of the leased asset. Reimbursement of property operating expenses arises from tenant leases which provide for the recovery of all or a portion of the operating expenses and real estate taxes of the respective property. This revenue is accrued in the same periods as the expenses are incurred. Management and Other Fee Income Management and other fee income represents property management, construction, leasing and development fees for services performed for the benefit of certain unconsolidated joint ventures. Property management fee income is reported at 100% of the revenue earned from such joint ventures in management and other fee income on the consolidated statements of operations. The Company’s share of management expenses incurred by the unconsolidated joint ventures is reported in equity in income (loss) of unconsolidated joint ventures on the consolidated statements of operations and in other expenses in the combined financial data in Note 4. Leasing and development fees are initially reported at the portion of fees attributable to outside ownership of the related unconsolidated joint ventures. The Company’s share in management fee income is recognized over the useful life of the associated development project, in the case of development fees, or lease term, in the case of leasing fees, as the associated asset is depreciated over the same term and included in equity in income (loss) of unconsolidated joint ventures on the consolidated statements of operations and in other expenses in the combined financial data in Note 4. Management determined that property and asset management and construction and development management services each represent a series of stand-ready performance obligations satisfied over time with each day of service being a distinct performance obligation. For property and asset management services, the Company is typically compensated for its services through a monthly management fee earned based on a specified percentage of monthly rental income or rental receipts generated from the property under management. For construction and development services, the Company is typically compensated for planning, administering and monitoring the design and construction of projects at our unconsolidated joint venture properties based on a percentage of project costs or a fixed fee. Revenues from such management contracts are recognized over the life of the applicable contract. Conversely, leasing services are considered to be a single performance obligation, satisfied as of a point in time. The Company’s leasing fee is typically paid upon the occurrence of certain contractual event(s) that may be contingent and the pattern of revenue recognition may differ from the timing of payment. For these services, the obligation is typically the execution of the lease and, as such, revenues are recognized at the point in time when that obligation has been satisfied.
Accounting for Recapture and Termination Activity Pursuant to the Master Lease	Accounting for Recapture and Termination Activity Pursuant to the Original Master Lease and Holdco Master Lease (see Note 5) Seritage Recapture Rights. The Company generally treats the delivery of a recapture notice as a modification of the lease as of the date of notice. Such a notice and lease modification result in the following accounting adjustments for the recaptured property: − The portion of accrued rental revenues related to the straight-line method of reporting rental revenue that are subject to the lease modification are amortized over the remaining shortened life of the lease from the date of notice to the date of vacancy. The portion of accrued rental revenues related to the straight-line method of reporting rental revenue that is attributable to the retained space, if any, is amortized over the remaining life of the lease. − The portion of intangible lease assets and liabilities that is deemed to be impacted by the lease modification is amortized over the shorter of the shortened lease term from the date of notice to the date of vacancy or the remaining useful life of the asset or liability. The portion of intangible lease assets and liabilities that is attributable to the retained space, if any, is amortized over the remaining useful life of the asset or liability. A recapture will generally occur in conjunction with obtaining a new tenant or a real estate development project. As such, termination fees, if any, associated with the recapture notice are generally capitalized as either an initial direct cost of obtaining a new lease or a necessary cost of the real estate project and depreciated over the life of the new lease obtained or the real estate asset being constructed or improved. Termination Rights. The Original Master Lease provided, and the Holdco Master Lease provides the tenant with certain rights to terminate their lease. Such terminations would generally result in the following accounting adjustments for the terminated property: − Accrued rental revenues related to the straight-line method of reporting rental revenue that are subject to the termination are amortized over the remaining shortened life of the lease from the date of notice to the date of vacancy. − Intangible lease assets and liabilities that are deemed to be impacted by the termination are amortized over the shorter of the shortened lease term from the date of notice to the date of vacancy or the remaining useful life of the asset or liability. − Termination fees required to be paid are recognized as follows: • For the portion of the termination fee attributable to the annual base rent of the subject property, termination income is recognized on a straight-line basis over the shortened life of the lease from the date the termination fee becomes legally binding to the date of vacancy. • For the portion of the termination fee attributable to estimated real estate taxes and property operating expenses for the subject property, prepaid rental income is recorded in the period such fee is received and recognized as tenant reimbursement revenue in the same periods as the expenses are incurred.
Derivatives	Derivatives The Company’s use of derivative instruments is limited to the management of interest rate exposure and not for speculative purposes. In connection with the issuance of the Company’s Mortgage Loans and Future Funding Facility in July 2015, the Company purchased for $5.0 million an interest rate cap with a term of four years, a notional amount of $1,261 million and a strike rate of 3.5%. The interest rate cap was measured at fair value and included as a component of prepaid expenses, deferred expenses and other assets on the consolidated balance sheets. The Company had elected not to utilize hedge accounting and therefore the change in fair value was included within change in fair value of interest rate cap on the consolidated statements of operations. During the year ended December 31, 2018, the Company terminated the interest rate cap concurrent with the repayment of the Mortgage Loans and the Future Funding Facility and as such there were no instruments as of December 31, 2019 and December 31, 2018. For the year ended December 31, 2019, the Company did not record any gain or loss on derivatives. For the year ended December 31, 2018 and December 31, 2017, the Company recorded a change in the fair value of the interest rate cap of ($23) thousand, and ($0.7) million, respectively.
Share-Based Compensation	Share-Based Compensation The Company generally recognizes equity awards to employees as compensation expense and includes such expense within general and administrative expenses in the consolidated statements of operations. Compensation expense for equity awards is based on the grant date fair value of the awards. Compensation expense is recognized ratably over the vesting period for awards with time-based vesting and awards with market-based vesting conditions (e.g. total shareholder return). For awards with performance-based vesting determined by Company operating criteria, the Company recognizes compensation expense at the date the achievement of performance criteria is deemed probable for the amount which would have been recognized ratably from the date of the grant through the date the achievement of performance criteria is deemed probable, and then ratably from the date the achievement of performance criteria is deemed probable through the remainder of the vesting period. The Company utilizes a third-party valuation firm to measure the grant date fair value of restricted stock unit awards with market-based criteria using the Monte Carlo model. Forfeitures are recorded on an actual basis.
Concentration of Credit Risk	Concentration of Credit Risk Concentrations of credit risk arise when a number of operators, tenants, or obligors related to the Company's investments are engaged in similar business activities, or activities in the same geographic region, or have similar economic features that would cause their ability to meet contractual obligations, including those to the Company, to be similarly affected by changes in economic conditions. As of December 31, 2019, 49 of the Company's real estate properties were leased to Holdco and a material amount of the Company’s rental revenues for the year ended December 31, 2019 was derived from the Holdco Master Lease. However, in November 2019, Holdco exercised its termination rights under the Holdco Master Lease with respect to 29 stores effective as of the first quarter of 2020. Other than the Company's tenant concentration, management believes the Company's portfolio was reasonably diversified by geographical location and did not contain any other significant concentrations of credit risk. As of December 31, 2019, the Company's portfolio of 184 Wholly Owned Properties and 28 JV Properties was diversified by location across 44 states and Puerto Rico.
Earnings per Share	Earnings per Share The Company has three classes of common stock. The rights, including the liquidation and dividend rights, of the holders of the Company’s Class A common shares and Class C non-voting common shares are identical, except with respect to voting. As the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis. The net earnings (loss) per share amounts are the same for Class A and Class C common shares because the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation. As of August 29, 2018, all outstanding Class C common shares had been exchanged for Class A common shares and there are currently no Class C common shares outstanding. Class B non-economic common shares are excluded from earnings per share computations as they do not have economic rights. All outstanding non-vested shares that contain non-forfeitable rights to dividends are considered participating securities and are included in computing earnings per share pursuant to the two-class method which specifies that all outstanding non-vested share-based payment awards that contain non-forfeitable rights to distributions are considered participating securities and should be included in the computation of earnings per share.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements The following presents Accounting Standards Updates (“ASU”) issued by Financial Accounting Standards Board (“FASB”) which have been adopted by the Company: ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets This standard provides guidance for recognizing gains and losses from the transfer of nonfinancial assets. The standard requires a company to derecognize nonfinancial assets once it transfers control of a distinct nonfinancial asset or distinct in substance nonfinancial assets to noncustomers. Additionally, when a company transfers its controlling interest in a nonfinancial asset, but retains a non-controlling ownership interest, the company is required to measure any non-controlling interest it receives or retains at fair value. An entity may elect to apply the amendments in ASU 2017-05 either retrospectively to each period presented in the financial statements (i.e. the retrospective approach) or retrospectively with a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption (i.e. the modified retrospective approach). January 1, 2018 The Company adopted this update with no impact to beginning retained earnings/accumulated deficit because there were no open contracts at the time of adoption. ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments This standard provides classification guidance for eight specific topics including debt extinguishment costs, contingent consideration payments made after a business combination, and distributions received from equity method investees. ASU 2016-15 is effective, on a retrospective basis, for interim and annual periods beginning after December 15, 2017; early adoption is permitted. January 1, 2018 The Company adopted this standard and applied the cumulative earnings approach to classify distributions received from our equity method investees. The adoption (i) changes our statements of cash flows so that distributions from unconsolidated joint ventures in excess of cumulative equity in earnings are now classified as inflows from investing activities for each period presented and (ii) resulted in a decrease to net cash provided by operating activities and an increase to net cash provided by investing activities of $ 10.0 million ASU 2014-09, Revenue from Contracts with Customers and the related FASB ASU Nos. 2016-12 and 2016-20 This standard provides practical expedients, technical corrections, and improvements for certain aspects of ASU 2014-09. ASU 2014-09 was developed to enable financial statement users to better understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The update’s core principle is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Companies are to use a five-step contract review model to ensure revenue is recognized, measured and disclosed in accordance with this principle. Those steps include the following: (i) identify the contract with the customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to each performance obligation in the contract, and (v) recognize revenue when or as the entity satisfies a performance obligation. The Company estimates the total transaction price, which generally includes a fixed contract price and may also include variable components. Variable components of the contract price are included in the transaction price to the extent that it is probable that a significant reversal of revenue will not occur. The Company recognizes the estimated transaction price as revenue as it satisfies its performance obligations. January 1, 2018 The Company adopted this standard using the modified retrospective method. Management concluded that the majority of total revenues consist of rental income from leasing arrangements, which is specifically excluded from the standard. As of January 1, 2018, the Company began accounting for the sale of real estate properties under Subtopic 610-20 which provides for revenue recognition based on transfer of ownership. ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2016-02, Leases (“Topic 842”) ASU 2018-10, Codification Improvements ASU 2018-11, Leases , Targeted Improvements ASU 2018-20, Leases This standard, as amended by subsequent ASUs on the topic, sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. Additional guidance and targeted improvements to the February 2016 ASU were made through the issuance of supplementary ASUs in July 2018, December 2018 and March 2019. The accounting applied by the lessor is largely unchanged from that applied under the existing lease standard. However, ASU 2016-02 requires lessees to apply a two-method approach, classifying leases as either finance or operating leases based on the principle of whether the lease is effectively a financed purchase. Lessees are required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months. Leases with a term of 12 months or less should be accounted for consistent with earlier guidance under ASC 840 for operating leases. Lessees should recognize an expense based on the effective interest method for finance leases or on a straight-line basis for operating leases. January 1, 2019 The Company adopted this standard by electing the package of practical expedients without hindsight which permits the Company to not reassess (1) whether any expired or existing contracts are or contain leases, (2) lease classification for any expired or existing leases, and (3) any initial direct costs for any existing leases as of the adoption date. The Company has a ground lease and several corporate office leases, which are classified as operating leases, for which the Company is required to record a right-of-use asset and a lease liability equal to the present value of the remaining minimum lease payments and will continue to recognize expense on a straight-line basis for these leases. On January 1, 2019, the Company recorded an aggregate of approximately $8.4 million of right-of-use assets and corresponding $8.4 million of lease liabilities upon adoption of this standard. Right-of-use assets and corresponding lease liabilities are included in the prepaid expenses, deferred expenses and other assets and accounts payable, accrued expenses and other liabilities line item respectively on the consolidated balance sheets. Additionally, the Company is no longer able to capitalize certain internal and external leasing costs. Because of this change, $1.3 million of such costs incurred in previous periods for leases which had not commenced at the beginning of current period were adjusted against opening equity upon adoption. The Company also combined $11,005 of below-market lease assets pertaining to the ground lease where we are a lessee with the right of use asset recorded for the ground lease as required upon adoption of ASU 2016-02. The below-market lease asset was previously recorded within the lease intangibles on the consolidated balance sheets. ASU 2018-01, Leases, Land Easement Practical Expedient for Transition to Topic 842 In March 2018, the FASB finalized changes with respect to optional transition relief and approved a practical expedient for lessors that would permit lessors to make an accounting policy election to not separate non-lease components from the associated lease components, by class of underlying asset, if the following two criteria are met: (1) the timing and pattern of transfer of the lease and non-lease components are the same and (2) the lease component would be classified as an operating lease if accounted for separately. January 1, 2019 The Company has elected the optional transition relief and has determined that it is not required to bifurcate and separately report non-lease components, such as common area maintenance revenue, for operating leases on the consolidated statements of operations for leases where the Company is the lessor. As a result, leases where the Company is the lessor have been accounted for in a similar method to earlier guidance under ASC 840. The Company’s adoption of ASC 842 did not have a material impact on our consolidated financial statements. The following table represents ASUs to the FASB’s ASC that, as of the year ended December 31, 2019, are not yet effective for the Company and for which the Company has not elected early adoption, where permitted: ASU Description Adoption Date Effect on the financial statements or other significant matters ASU 2016-13, Financial Instruments – Credit Losses (Topic 326) ASU 2018-19, Codification improvements to Topic 326, Financial Instruments – Credit Losses ASU 2016-13 changes the impairment model for most financial assets and certain other instruments, requiring the use of an "expected credit loss" model and adding more disclosure requirements. ASU 2018-19 clarifies that impairment of receivables arising from operating leases should accounted for in accordance with Topic 842, Leases. January 1, 2020 This standard is not expected to have a significant impact to our consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Estimated Useful Lives	Depreciation of real estate assets, excluding land, is recognized on a straight-line basis over their estimated useful lives as follows: Buildings: 25 – 40 years Site improvements: 5 – 15 years Tenant improvements: shorter of the estimated useful life or non-cancelable term of lease
Schedule Of Gain On Sale Of Real Estate	The following table summarizes our gain on sale of real estate, net during the years ended December 31, 2019, 2018, and 2017 (in thousands): Year Ended December 31, 2019 2018 2017 Contributions to unconsolidated joint ventures Gross proceeds $ 21.7 $ 232.7 $ 57.5 Gain (loss) on sale of real estate, net 3.9 63.9 11.4 Dispositions to third parties Gross proceeds $ 144.3 $ 114.3 $ — Gain (loss) on sale of real estate, net 63.7 29.5 — Total gains on contributions and dispositions, net $ 67.6 $ 93.4 $ 11.4

Lease Intangible Assets and L_2

Lease Intangible Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Summary of Lease Intangible Assets	The following table summarizes the Company’s lease intangible assets and liabilities (in thousands): December 31, 2019 Gross Accumulated Lease Intangible Assets Asset Amortization Balance In-place leases, net $ 245,745 $ (180,639 ) $ 65,106 Above-market leases, net 6,625 (3,578 ) 3,047 Total $ 252,370 $ (184,217 ) $ 68,153 December 31, 2018 Gross Accumulated Lease Intangible Assets Asset Amortization Balance In-place leases, net $ 266,897 $ (158,235 ) $ 108,662 Below-market ground leases, net 11,766 (710 ) 11,056 Above-market leases, net 8,338 (4,400 ) 3,938 Total $ 287,001 $ (163,345 ) $ 123,656
Summary of Lease Intangible Liabilities	Gross Accumulated Lease Intangible Liabilities Liability Amortization Balance Below-market leases, net $ 15,912 $ (5,264 ) $ 10,648 Total $ 15,912 $ (5,264 ) $ 10,648 Gross Accumulated Lease Intangible Liabilities Liability Amortization Balance Below-market leases, net $ 19,720 $ (7,439 ) $ 12,281 Total $ 19,720 $ (7,439 ) $ 12,281
Schedule of Future Amortization for Below-Market Ground Leases	Future amortization of the below-market ground lease is estimated to increase property expenses as set forth below (in thousands): 2020 $ 203 2021 203 2022 203 2023 203 2024 203
Above-Market Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Schedule of Future Amortization of Acquired Leases	Future amortization of these intangibles is estimated to increase rental income as set forth below (in thousands): 2020 $ 287 2021 148 2022 118 2023 175 2024 190
In-Place Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Schedule of Future Amortization of Acquired Leases	Future estimated amortization of acquired in-place leases is set forth below (in thousands): 2020 $ 14,396 2021 13,226 2022 12,918 2023 12,118 2024 11,574

Investments in Unconsolidated_2

Investments in Unconsolidated Joint Ventures (Tables)	12 Months Ended
	Dec. 31, 2019
Equity Method Investments And Joint Ventures [Abstract]
Summary of Company's Investments in Unconsolidated Joint Ventures	As of December 31, 2019, the Company had investments in nine unconsolidated joint ventures as follows: Seritage % # of Total Unconsolidated Joint Venture Joint Venture Partner Ownership Properties GLA GS Portfolio Holdings II LLC ("GGP I JV") Brookfield Properties Retail 50.0 % 4 598,200 GS Portfolio Holdings (2017) LLC ("GGP II JV") Brookfield Properties Retail 50.0 % 5 1,168,000 MS Portfolio LLC ("Macerich JV") The Macerich Company 50.0 % 9 1,572,000 SPS Portfolio Holdings II LLC ("Simon JV") Simon Property Group, Inc. 50.0 % 5 872,200 Mark 302 JV LLC ("Mark 302 JV") An investment fund managed by Invesco Real Estate 50.1 % 1 96,400 SI UTC LLC ("UTC JV") A separate account advised by Invesco Real Estate 50.0 % 1 226,200 SF WH Joint Venture LLC ("West Hartford JV") An affiliate of First Washington Realty 50.0 % 1 163,600 GGCAL SRG HV LLC ("Cockeysville JV") An affiliate of Greenberg Gibbons 50.0 % 1 159,000 Tech Ridge JV Holding LLC ("Tech Ridge JV") An affiliate of RD Management 50.0 % 1 — 28 4,855,600
Summary of Properties Contributed In Unconsolidated Joint Ventures	The following table presents summarizes the properties contributed to the Company’s unconsolidated joint ventures: December 31, 2019 Unconsolidated Joint Venture Contribution Date Contribution Value Gain (Loss) 2018 Mark 302 JV (1) March 20, 2018 $ 90.0 $ 38.8 UTC JV May 18, 2018 68.0 28.3 West Hartford JV (2) May 18, 2018 20.3 (1.1 ) 2019 Cockeysville JV (3) March 29, 2019 $ 12.5 $ 3.8 Tech Ridge JV (4) September 27, 2019 3.0 0.1 (1) The Mark 302 JV is subject to a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2020. The primary inputs in determining the Contribution Value for the Mark 302 JV are property operating income and total project costs and the Contribution Value will be recalculated to yield a pre-determined rate of return to the investment fund managed by Invesco Real Estate. The Contribution Value cannot be more than $ ( 2 ) The West Hartford JV is subject to (i) a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2019, and (ii) an adjustment based on the timing, method and magnitude of the reassessment of the property for real estate tax purposes between 2018 and 2022. The primary inputs in determining the Contribution Value for the West Hartford JV are property operating income , real estate taxes and total project costs. The Contribution Value cannot be more than $ 29.6 million or less than $ 20.4 million, and the Gain (Loss) can not be more than $ 5.8 million or more than a $ 3.4 million loss . As of December 31, 2019, the Company revaluated the Contribution Value and recorded an additional loss of $ 2.3 million. ( 3 ) The Cockeysville JV is subject to revaluation if an affiliate of Greenberg Gibbons contributes another adjacent parcel of land (the “Additional Land Parcel”) to the Cockeysville JV if certain milestones are met with respect to entitling the Additional Land Parcel for residential use. If the Additional Land Parcel is contributed to the Cockeysville JV, the Company will record an increased investment in the Cockeysville JV in an amount equal to 50% of the fair value of the Additional Land Parcel at the time of contribution. The Contribution Value of the Cockeysville JV is based upon the Company’s assessment of the probability of the Additional Land Parcel being entitled for residential use. The maximum Gain (Loss) is the fair value of the Additional Land Parcel at the time the Contribution Value is revalued, which cannot be less than $ ( 4 ) The Tech Ridge JV is subject to a revaluation primarily based upon, the number of residential units constructed by the Tech Ridge JV. T he Contribution Value cannot be less than $2.75 million.
Summary of Combined Financial Data of Unconsolidated Joint Ventures	December 31, 2019 December 31, 2018 ASSETS Investment in real estate Land $ 336,739 $ 321,853 Buildings and improvements 517,068 508,302 Accumulated depreciation (86,496 ) (72,239 ) 767,311 757,916 Construction in progress 177,028 78,227 Net investment in real estate 944,339 836,143 Cash and cash equivalents 27,977 14,741 Tenant and other receivables, net 3,113 5,220 Other assets, net 26,051 38,285 Total assets $ 1,001,480 $ 894,389 LIABILITIES AND MEMBERS' INTERESTS Liabilities Mortgage loans payable, net $ 14,218 $ 10,406 Accounts payable, accrued expenses and other liabilities 89,110 71,791 Total liabilities 103,328 82,197 Members Interest Additional paid in capital 934,120 833,168 Retained earnings (35,968 ) (20,976 ) Total members interest 898,152 812,192 Total liabilities and members interest $ 1,001,480 $ 894,389 Year Ended December 31, 2019 2018 2017 EQUITY IN INCOME OF UNCONSOLIDATED JOINT VENTURES Total revenue $ 31,470 $ 48,455 $ 58,264 Property operating expenses (11,385 ) (9,357 ) (11,358 ) Depreciation and amortization (60,745 ) (31,676 ) (47,948 ) Operating income (loss) (40,660 ) 7,422 (1,042 ) Other expenses (2,049 ) (28,317 ) (14,533 ) Gain on sale of real estate, net 6,721 — — Net (loss) income $ (35,988 ) $ (20,895 ) $ (15,575 ) Equity in (loss) income of unconsolidated joint ventures $ (17,994 ) $ (10,448 ) $ (7,788 )

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Summary of Revenue from Master Lease	Revenues from the Holdco Master Lease and the Original Master Lease for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands and excluding straight-line rental income of $0.3 million, ($4.9) million and $0.8 million, respectively. Year Ended December 31, 2019 2018 2017 Fixed rental income $ 27,628 $ 86,224 $ 112,881 Variable rental income 23,525 65,450 70,987 Total rental income $ 51,153 $ 151,674 $ 183,868
Summary of the Company’s Recapture Activity	The following table provides a summary of the Company’s recapture activity: (in thousands except property count) Year Square Feet Total Number of Properties 100% Recaptures (1) Partial Recaptures (2) 2019 629 4 3 1 2018 3,428 20 17 3 2017 3,302 27 16 11 2016 1,501 17 4 13 2015 372 3 3 — Total 9,232 71 43 28 (1) Includes properties for which the Company had converted partial recapture rights to 100% recapture rights. (2) Partial recaptures include the recapture of (i) up to approximately 50% of the space occupied by the tenant at all properties, (ii) automotive care centers which are free-standing or attached as “appendages” to the properties, and/or (iii) outparcels or outlots and certain portions of parking areas and common areas.
Summary of Termination and Redevelopment Properties	The following table provides a summary of Sears Holdings’ and Holdco’s termination activity (excluding 31 properties totaling 4.3 million square feet that were rejected on March 12, 2019 as part of Sears Holdings’ bankruptcy filing): (in thousands except property count) Notice Date Termination Date Square Feet Total Number of Properties Number of Properties Redeveloped by the Company Number of Properties Sold by the Company November 2019 March 2020 4,332 29 7 1 August 2018 December 2018 1,605 13 6 3 June 2018 November 2018 (1) 1,218 9 6 1 April 2018 August 2018 1,494 9 4 1 June 2017 October 2017 (2) 3,812 20 8 4 January 2017 April 2017 1,872 19 7 8 September 2016 January 2017 1,727 17 8 6 Total 16,060 116 46 24 (1) Two properties were terminated in October 2018. (2) One property was terminated in November 2017 and another one was terminated in January 2018.
Schedule of Future Minimum Rental Receipts excluding Variable Payments and Tenant Reimbursements of Expenses Under Non-cancelable Operating Leases	Future minimum rental receipts, excluding variable payments and tenant reimbursements of expenses, under non-cancelable operating leases executed as of December 31, 2019 and December 31, 2018 is approximately as follows: (in thousands) December 31, 2019 2020 113,265 2021 121,909 2022 124,067 2023 119,745 2024 116,607 Thereafter 1,019,054 Total Lease Payments $ 1,614,647 (in thousands) December 31, 2018 2019 $ 120,132 2020 122,263 2021 125,963 2022 124,949 2023 120,672 Thereafter 412,789 Total Lease Payments $ 1,026,768
Components of Lease Revenues	The components of lease revenues for the years ended December 31, 2019, December 31, 2018 and December 31, 2017 were as follows: Year Ended December 31, (in thousands) 2019 2018 2017 Fixed rental income 104,956 140,661 154,599 Variable rental income 45,994 74,839 81,528 Total rental income $ 150,950 $ 215,500 $ 236,127
Information Related to Measurement of Lease Liabilities	The following table sets forth information related to the measurement of our lease liabilities as of December 31, 2019: (dollar amounts in thousands) As of December 31, 2019 Weighted average remaining lease term (in years) 10.54 Weighted average discount rate 7.20 % Cash paid for operating leases $ 2,161

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Class A and Class C Common Share [Member]
Class of Stock [Line Items]
Summary of Dividends and Distributions	The Company’s Board of Trustees declared the following common stock dividends during 2019 and 2018, with holders of OP Units entitled to an equal distribution per Operating Partnership unit held on the record date: Dividends per Class A and Class C Declaration Date Record Date Payment Date Common Share 2019 February 25 March 29 April 11 $ 0.25 2018 October 23 December 31 January 10, 2019 $ 0.25 July 24 September 28 October 11 0.25 April 24 June 29 July 12 0.25 February 20 March 30 April 12 0.25 Year Ended December 31, 2019 2018 2017 Ordinary income $ — $ 0.01 $ 0.53 Capital gain distributions — 0.35 0.47 Return of capital 0.50 0.39 — Dividends reallocation (1) (0.25 ) 0.25 — Total $ 0.25 $ 1.00 $ 1.00
Series A Preferred Shares [Member]
Class of Stock [Line Items]
Summary of Dividends and Distributions	The Company’s Board of Trustees also declared the following dividends on preferred shares during 2019 and 2018: Declaration Date Record Date Payment Date Preferred Share 2019 October 23 December 31 January 15, 2020 $ 0.43750 July 23 September 30 October 15 0.43750 April 30 June 28 July 15 0.43750 February 25 March 29 April 15 0.43750 2018 October 23 December 31 January 14, 2019 $ 0.43750 July 24 September 28 October 15 0.43750 April 24 June 29 July 16 0.43750 February 20 March 30 April 16 0.43750 February 20 (1) March 30 April 16 0.15556 (1) This dividend covers the period from, and including, December 14, 2017 to December 31, 2017.

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Reconciliation of Net Income (Loss) and Number of Common Shares Used in Computations of Basic Earnings Per Share	The table below provides a reconciliation of net loss and the number of common shares used in the computations of “basic” earnings per share (“EPS”), which utilizes the weighted-average number of common shares outstanding without regard to dilutive potential common shares, and “diluted” EPS, which includes all such shares. Potentially dilutive securities consist of shares of non-vested restricted stock and the redeemable non-controlling interests in the Operating Partnership. All outstanding non-vested shares that contain non-forfeitable rights to dividends are considered participating securities and are included in computing EPS pursuant to the two-class method which specifies that all outstanding non-vested share-based payment awards that contain non-forfeitable rights to distributions are considered participating securities and should be included in the computation of EPS. Earnings per share has not been presented for Class B shareholders, as they do not have economic rights. Year Ended December 31, (in thousands except per share amounts) 2019 2018 2017 Numerator - Basic and Diluted Net loss $ (90,603 ) $ (114,878 ) $ (120,813 ) Net loss attributable to non-controlling interests 31,206 41,406 47,059 Preferred dividends (4,900 ) (4,903 ) (245 ) Net loss attributable to common shareholders $ (64,297 ) $ (78,375 ) $ (73,999 ) Earnings allocated to unvested participating securities — — — Net loss available to common shareholders - Basic and diluted $ (64,297 ) $ (78,375 ) $ (73,999 ) Denominator - Basic and Diluted Weighted average Class A common shares outstanding 36,413 35,103 28,249 Weighted average Class C common shares outstanding - 457 5,555 Weighted average Class A and Class C common shares outstanding 36,413 35,560 33,804 Net income (loss) per share attributable to Class A and Class C common shareholders $ (1.77 ) $ (2.20 ) $ (2.19 )

Share Based Compensation (Table

Share Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Restricted Share	The following table summarizes restricted share activity for the grant periods ended December 31, 2019 and 2018: Year Ended December 31, 2019 Year Ended December 31, 2018 Weighted- Weighted- Average Grant Average Grant Shares Date Fair Value Shares Date Fair Value Unvested restricted shares at beginning of period 403,129 $ 41.57 245,570 $ 41.33 Restricted shares granted 76,948 57.04 261,059 40.80 Restricted shares vested (127,767 ) 41.76 (99,956 ) 39.04 Restricted shares forfeited (2,992 ) 45.02 (3,544 ) 38.83 Unvested restricted shares at end of period 349,318 $ 44.88 403,129 $ 41.57

Quarterly Financial Informati_2

Quarterly Financial Information (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Summary of Selected Quarterly Financial Data	The following table sets forth the selected quarterly financial data for the Company (in thousands, except per share amounts): 2019 2018 First Second Third Fourth First Second Third Fourth Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Total revenue $ 43,860 $ 40,511 $ 47,628 $ 36,634 $ 53,777 $ 49,270 $ 56,593 $ 55,114 Total expenses 56,404 47,952 50,349 69,750 61,147 74,083 76,802 120,839 Net income (loss) (10,894 ) (25,885 ) (16,482 ) (37,342 ) 16,201 (10,602 ) (34,744 ) (85,733 ) Net income (loss) attributable to common shareholders (8,192 ) (18,128 ) (12,103 ) (25,874 ) 9,100 (7,996 ) (23,441 ) (56,038 ) Net income (loss) per share attributable to Class A and Class C common shareholders - Basic (0.23 ) (0.50 ) (0.33 ) (0.70 ) 0.26 (0.23 ) (0.66 ) (1.57 ) Net income (loss) per share attributable to Class A and Class C common shareholders - Diluted (0.23 ) (0.50 ) (0.33 ) (0.70 ) 0.26 (0.23 ) (0.66 ) (1.57 ) Weighted average Class A and Class C common shares outstanding - Basic 35,671 36,291 36,829 36,846 35,414 35,483 35,598 35,589 Weighted average Class A and Class C common shares outstanding - Diluted 35,671 36,291 36,829 36,846 35,501 35,483 35,598 35,589 2019 2018 First Second Third Fourth First Second Third Fourth Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Depreciation and amortization expense (1) $ 10,800 $ 2,059 $ 4,286 $ 18,548 $ 11,016 $ 26,758 $ 31,444 $ 78,311 Gains on the sale of interests (2) 21,260 11,613 12,445 25,786 41,831 34,187 17,401 2,745 (1) Denotes depreciation and amortization expense related to the demolition of certain buildings for redevelopment and the accelerated amortization of certain lease intangibles. (2) Denotes gains on the on the sale of interests in unconsolidated joint ventures and gains on the sale of real estate.

Organization - Additional Infor

Organization - Additional Information (Detail) $ in Thousands	Feb. 28, 2019Property	Jun. 11, 2015USD ($)PropertyJointVentureRetailFacility	Nov. 30, 2019Property	Dec. 31, 2019USD ($)ft²PropertyStateJointVenture	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Organization And Basis Of Presentation [Line Items]
Number of properties interested in the portfolio				212
Area of real estate property (in square feet) | ft²				9,232
Number of states in properties located | State				44
Number of properties				28
Number of joint venture acquired | JointVenture				28
Net cash (used in) provided by operating activities | $				$ 57,660	$ (54,899)	$ (59,609)
Net cash (used in) provided by investing activities | $				$ 299,490	$ 119,475	$ (37,189)
Master Lease [Member]
Organization And Basis Of Presentation [Line Items]
Number of real estate properties wholly-owned				10
Sears Holdings Corporation [Member]
Organization And Basis Of Presentation [Line Items]
Business acquisition fair value, purchase price | $		$ 2,700,000
Number of real estate properties acquired		234
Number of ground leased properties acquired		1
Interests in joint ventures acquired		50.00%
Number of joint venture acquired | JointVenture		3
Sears Holdings Corporation [Member] | Joint Venture [Member]
Organization And Basis Of Presentation [Line Items]
Number of retail facilities | RetailFacility		28
Holdco Master Lease [Member] | Termination [Member]
Organization And Basis Of Presentation [Line Items]
Number of properties to be terminated			29
Wholly Owned Properties [Member] | Holdco Master Lease [Member]
Organization And Basis Of Presentation [Line Items]
Number of wholly owned properties				48
Wholly Owned Properties [Member] | Holdco Master Lease [Member] | Termination [Member]
Organization And Basis Of Presentation [Line Items]
Number of wholly owned properties				28
Wholly Owned Properties [Member] | Holdco Master Lease [Member] | Recapturing And Termination [Member]
Organization And Basis Of Presentation [Line Items]
Number of wholly owned properties				17
Wholly Owned Properties [Member] | Holdco Master Lease [Member] | Master Lease [Member] | Recapture [Member]
Organization And Basis Of Presentation [Line Items]
Right to recapture property space exercised				100.00%
Number of real estate properties wholly-owned				3
Joint Venture Properties [Member] | Holdco JV Leases [Member]
Organization And Basis Of Presentation [Line Items]
Number of properties leased				3
Joint Venture Properties [Member] | Holdco JV Leases [Member] | Termination [Member]
Organization And Basis Of Presentation [Line Items]
Number of properties leased				1
Joint Venture Properties [Member] | Holdco JV Leases [Member] | Recapturing And Termination [Member]
Organization And Basis Of Presentation [Line Items]
Number of properties leased				2
Joint Venture Properties [Member] | Sears Holdings Corporation [Member] | Joint Venture [Member]
Organization And Basis Of Presentation [Line Items]
Number of retail facilities subject to ground lease | RetailFacility		1
Number of retail facilities subject to lease | RetailFacility		2
Real Estate Investment Trust [Member]
Organization And Basis Of Presentation [Line Items]
Area of real estate property (in square feet) | ft²				33,400,000
Real Estate Investment Trust [Member] | Wholly Owned Properties [Member]
Organization And Basis Of Presentation [Line Items]
Area of real estate property (in square feet) | ft²				28,700,000
Number of wholly owned properties	51			184
Number of states in properties located | State				44
Real Estate Investment Trust [Member] | Joint Venture Properties [Member]
Organization And Basis Of Presentation [Line Items]
Area of real estate property (in square feet) | ft²				4,700,000
Number of states in properties located | State				14
Number of properties				28

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019USD ($)PropertyStateJointVentureSegment	Dec. 31, 2018USD ($)Property	Dec. 31, 2017USD ($)	Jan. 01, 2019USD ($)	Aug. 29, 2018shares
Summary Of Significant Accounting Policies [Line Items]
Number of Reportable Segments | Segment	1
Impairment loss on real estate assets	$ 0	$ 0	$ 0
Gain related to exchange of land parcels	6,900,000
Gain or loss on sale of real estate based on final contribution value	$ 2,300,000
Number of Properties Classified | Property	2	1
Real estate held for sale, assets	$ 5,275,000	$ 3,094,000
Real estate held for sale, liabilities	0	0
Restricted cash	$ 0	0	175,665,000
Unrealized loss related to change in fair value		(23,000)	(701,000)
Number of real estate properties leased | Property	49
Number of wholly owned properties acquired | Property	184
Number of joint venture properties acquired | JointVenture	28
Number of states in properties located | State	44
Common shares, outstanding | shares					0
Net Cash Provided by (Used in) Operating Activities	$ (57,660,000)	54,899,000	59,609,000
Net Cash Provided by (Used in) Investing Activities	(299,490,000)	(119,475,000)	37,189,000
Operating Lease, Right-of-Use Asset	18,500,000
Operating Lease, Liability	8,600,000
Below Market Lease assets	10,648,000	12,281,000
Accounting Standards Update 2019-15 [Member]
Summary Of Significant Accounting Policies [Line Items]
Net Cash Provided by (Used in) Operating Activities			(10,000,000)
Net Cash Provided by (Used in) Investing Activities			(10,000,000)
Operating Lease, Right-of-Use Asset				$ 8,400,000
Operating Lease, Liability				$ 8,400,000
ASU 2016-02 [Member]
Summary Of Significant Accounting Policies [Line Items]
Lease, Cost	1,300,000
Below Market Lease assets	$ 11,005,000
Interest Rate Cap [Member]
Summary Of Significant Accounting Policies [Line Items]
Interest rate caps purchased		$ 5,000,000
Derivative, term of contract		4 years
Notional amount		$ 1,261,000,000
Derivative strike rate		3.50%
Unrealized loss related to change in fair value		$ (23,000,000)	$ (700,000)
Management and Other Fee Income [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue earned from unconsolidated joint ventures		100.00%
Operating Partnership [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of operating partnership interest held by parent	66.10%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2019
Minimum [Member] | Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Minimum [Member] | Site Improvement [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Maximum [Member] | Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Maximum [Member] | Site Improvement [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Schedule of Gain on Sale of Real Estate (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Contributions to unconsolidated joint ventures
Gross proceeds	$ 21,700	$ 232,700	$ 57,500
Gain (loss) on sale of real estate, net	3,900	63,900	11,400
Dispositions to third parties
Gross proceeds	144,300	114,300
Gain (loss) on sale of real estate, net	63,700	29,500
Total gains on contributions and dispositions, net	$ 67,600	$ 93,400	$ 11,400

Lease Intangible Assets and L_3

Lease Intangible Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, net of accumulated amortization	$ 68,153	$ 123,656
Identified intangible liability, net of accumulated amortization	10,648	12,281
Amortization of below-market leases, net of above-market leases	500	900	$ 1,200
Additional property expense	200	200	200
In-Place Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, net of accumulated amortization	65,106	108,662
Amortization expense of intangible assets	$ 40,500	$ 173,100	$ 139,500

Lease Intangible Assets and L_4

Lease Intangible Assets and Liabilities - Summary of Lease Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Asset	$ 252,370	$ 287,001
Accumulated Amortization	(184,217)	(163,345)
Balance	68,153	123,656
In-Place Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Asset	245,745	266,897
Accumulated Amortization	(180,639)	(158,235)
Balance	65,106	108,662
Above-Market Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Asset	6,625	8,338
Accumulated Amortization	(3,578)	(4,400)
Balance	$ 3,047	3,938
Below-Market Ground Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Asset		11,766
Accumulated Amortization		(710)
Balance		$ 11,056

Lease Intangible Assets and L_5

Lease Intangible Assets and Liabilities - Summary of Lease Intangible Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Below Market Lease Net [Abstract]
Gross Liability	$ 15,912	$ 19,720
Accumulated Amortization	(5,264)	(7,439)
Balance	$ 10,648	$ 12,281

Lease Intangible Assets and L_6

Lease Intangible Assets and Liabilities - Schedule of Future Amortization of Intangibles (Detail) - Above-Market Leases, Net [Member] $ in Thousands	Dec. 31, 2019USD ($)
Finite-Lived Intangible Assets [Line Items]
2020	$ 287
2021	148
2022	118
2023	175
2024	$ 190

Lease Intangible Assets and L_7

Lease Intangible Assets and Liabilities - Schedule of Future Amortization for Below-Market Ground Lease (Detail) $ in Thousands	Dec. 31, 2019USD ($)
Below Market Lease Amortization Income Maturity Schedule [Abstract]
2020	$ 203
2021	203
2022	203
2023	203
2024	$ 203

Lease Intangible Assets and L_8

Lease Intangible Assets and Liabilities - Schedule of Future Estimated Amortization of Acquired In-Place Leases (Detail) - In-Place Leases, Net [Member] $ in Thousands	Dec. 31, 2019USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
2020	$ 14,396
2021	13,226
2022	12,918
2023	12,118
2024	$ 11,574

Investments in Unconsolidated_3

Investments in Unconsolidated Joint Ventures - Summary of Company's Investments in Unconsolidated Joint Ventures (Detail)	Nov. 03, 2017Property	Dec. 31, 2019ft²Property
Income Statement Equity Method Investments [Line Items]
Number of properties		28
Total GLA | ft²		4,855,600
Brookfield Properties Retail I [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		4
Total GLA | ft²		598,200
Brookfield Properties Retail II [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		5
Total GLA | ft²		1,168,000
The Macerich Company [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		9
Total GLA | ft²		1,572,000
Simon Property Group Inc [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties	10	5
Total GLA | ft²		872,200
Invesco Real Estate [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.10%
Number of properties		1
Total GLA | ft²		96,400
Invesco Real Estate II [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		1
Total GLA | ft²		226,200
First Washington Realty [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		1
Total GLA | ft²		163,600
Greenberg Gibbons [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		1
Total GLA | ft²		159,000
RD Management [Member]
Income Statement Equity Method Investments [Line Items]
Seritage % Ownership		50.00%
Number of properties		1

Investments in Unconsolidated_4

Investments in Unconsolidated Joint Ventures - Summary of Properties Contributed In Unconsolidated Joint Ventures (Detail)	12 Months Ended
	Dec. 31, 2019USD ($)
Mark 302 JV [Member]
Related Party Transaction [Line Items]
Contribution Date	Mar. 20, 2018	[1]
Contribution Value	$ 90	[1]
Gain (Loss)	$ 38.8	[1]
UTC Joint Venture [Member]
Related Party Transaction [Line Items]
Contribution Date	May 18, 2018
Contribution Value	$ 68
Gain (Loss)	$ 28.3
West Hartford JV [Member]
Related Party Transaction [Line Items]
Contribution Date	May 18, 2018	[2]
Contribution Value	$ 20.3	[2]
Gain (Loss)	$ (1.1)	[2]
Cockeysville JV [Member]
Related Party Transaction [Line Items]
Contribution Date	Mar. 29, 2019	[3]
Contribution Value	$ 12.5	[3]
Gain (Loss)	$ 3.8	[3]
Tech Ridge JV [Member]
Related Party Transaction [Line Items]
Contribution Date	Sep. 27, 2019	[4]
Contribution Value	$ 3	[4]
Gain (Loss)	$ 0.1	[4]
[1]	The Mark 302 JV is subject to a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2020. The primary inputs in determining the Contribution Value for the Mark 302 JV are property operating income and total project costs and the Contribution Value will be recalculated to yield a pre-determined rate of return to the investment fund managed by Invesco Real Estate. The Contribution Value cannot be more than $
[2]	The West Hartford JV is subject to (i) a revaluation upon the earlier of the first anniversary of project stabilization or December 31, 2019, and (ii) an adjustment based on the timing, method and magnitude of the reassessment of the property for real estate tax purposes between 2018 and 2022. The primary inputs in determining the Contribution Value for the West Hartford JV are property operating income , real estate taxes and total project costs. The Contribution Value cannot be more than $ 29.6 million or less than $ 20.4 million, and the Gain (Loss) can not be more than $ 5.8 million or more than a $ 3.4 million loss . As of December 31, 2019, the Company revaluated the Contribution Value and recorded an additional loss of $ 2.3 million.
[3]	The Cockeysville JV is subject to revaluation if an affiliate of Greenberg Gibbons contributes another adjacent parcel of land (the “Additional Land Parcel”) to the Cockeysville JV if certain milestones are met with respect to entitling the Additional Land Parcel for residential use. If the Additional Land Parcel is contributed to the Cockeysville JV, the Company will record an increased investment in the Cockeysville JV in an amount equal to 50% of the fair value of the Additional Land Parcel at the time of contribution. The Contribution Value of the Cockeysville JV is based upon the Company’s assessment of the probability of the Additional Land Parcel being entitled for residential use. The maximum Gain (Loss) is the fair value of the Additional Land Parcel at the time the Contribution Value is revalued, which cannot be less than $
[4]	The Tech Ridge JV is subject to a revaluation primarily based upon, the number of residential units constructed by the Tech Ridge JV. T he Contribution Value cannot be less than $2.75 million.

Investments in Unconsolidated_5

Investments in Unconsolidated Joint Ventures - Summary of Properties Contributed In Unconsolidated Joint Ventures (Parenthetical) (Detail) - USD ($)	Mar. 29, 2019	May 18, 2018	Mar. 20, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 27, 2019
Related Party Transaction [Line Items]
Final contribution value				$ 2,300,000
Gain or loss on sale of real estate based on final contribution value				2,300,000
Contribution value				2,300,000
Gain on sale of real estate				$ 71,104,000	$ 96,165,000	$ 11,447,000
Invesco Real Estate [Member] | Santa Monica C A | Mark 302 JV [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Investment in joint venture revaluation date			Dec. 31, 2020
Final contribution value			$ 105,000,000
Gain or loss on sale of real estate based on final contribution value			53,800,000
Contribution value			105,000,000
Invesco Real Estate [Member] | Santa Monica C A | Mark 302 JV [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Final contribution value			60,000,000
Gain or loss on sale of real estate based on final contribution value			8,800,000
Contribution value			$ 60,000,000
Invesco Real Estate [Member] | West Hartford, CT [Member] | West Hartford JV [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Investment in joint venture revaluation date		Dec. 31, 2019
Final contribution value		$ 29,600,000
Gain or loss on sale of real estate based on final contribution value		5,800,000
Contribution value		29,600,000
Invesco Real Estate [Member] | West Hartford, CT [Member] | West Hartford JV [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Final contribution value		20,400,000
Gain or loss on sale of real estate based on final contribution value		3,400,000
Contribution value		$ 20,400,000
Invesco Real Estate [Member] | Cockeysville, MD [Member] | Cockeysville JV [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Gain on sale of real estate	$ 3,800,000
Invesco Real Estate [Member] | Cockeysville, MD [Member] | Tech Ridge JV [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Final contribution value							$ 2,750,000
Contribution value							$ 2,750,000

Investments in Unconsolidated_6

Investments in Unconsolidated Joint Ventures - Additional Information (Detail)	Nov. 03, 2017USD ($)Property	Jul. 12, 2017USD ($)Property	Dec. 31, 2019USD ($)Property	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Schedule Of Equity Method Investments [Line Items]
Net proceeds from disposition of interest in unconsolidated joint ventures		$ 247,600,000			$ 257,373,000
Number of properties | Property			28
Gain on sale of interest in unconsolidated joint venture			$ 6,721,000		60,302,000
Gain on sale of real estate			71,104,000	$ 96,165,000	11,447,000
Joint venture impairment charges			0	0	$ 0
West Hartford JV [Member]
Schedule Of Equity Method Investments [Line Items]
Income earned from servicing activities			$ 1,600,000	$ 1,200,000
General Growth Properties, Inc. I [Member]
Schedule Of Equity Method Investments [Line Items]
Net proceeds from disposition of interest in unconsolidated joint ventures		$ 190,100,000
Percentage of interests sold		50.00%
Number of joint venture properties sold | Property		8
Number of properties | Property		12
Gain on sale of interest in unconsolidated joint venture		$ 43,700,000
General Growth Properties, Inc. II [Member]
Schedule Of Equity Method Investments [Line Items]
Number of wholly owned properties contributed | Property		5
New JV Properties [Member]
Schedule Of Equity Method Investments [Line Items]
Net proceeds from disposition of interest in unconsolidated joint ventures		$ 57,500,000
Percentage of interests sold		50.00%
Gain on sale of real estate		$ 11,500,000
Simon Property Group Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Net proceeds from disposition of interest in unconsolidated joint ventures	$ 68,000,000
Percentage of interests sold	50.00%
Number of joint venture properties sold | Property	5
Number of properties | Property	10		5
Gain on sale of interest in unconsolidated joint venture	$ 16,600,000

Investments in Unconsolidated_7

Investments in Unconsolidated Joint Ventures - Summary of Combined Financial Data of Unconsolidated Joint Ventures (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Land	$ 336,739	$ 321,853
Buildings and improvements	517,068	508,302
Accumulated depreciation	(86,496)	(72,239)
Investment in real estate, gross	767,311	757,916
Construction in progress	177,028	78,227
Net investment in real estate	944,339	836,143
Cash and cash equivalents	27,977	14,741
Tenant and other receivables, net	3,113	5,220
Other assets, net	26,051	38,285
Total assets	1,001,480	894,389
LIABILITIES AND MEMBERS' INTERESTS
Mortgage loans payable, net	14,218	10,406
Accounts payable, accrued expenses and other liabilities	89,110	71,791
Total liabilities	103,328	82,197
Members Interest
Additional paid in capital	934,120	833,168
Retained earnings	(35,968)	(20,976)
Total members interest	898,152	812,192
Total liabilities and members interest	1,001,480	894,389
EQUITY IN INCOME OF UNCONSOLIDATED JOINT VENTURES
Total revenue	31,470	48,455	$ 58,264
Property operating expenses	(11,385)	(9,357)	(11,358)
Depreciation and amortization	(60,745)	(31,676)	(47,948)
Operating income (loss)	(40,660)	7,422	(1,042)
Other expenses	(2,049)	(28,317)	(14,533)
Gain on sale of interests in unconsolidated joint ventures	6,721		60,302
Net (loss) income	(35,988)	(20,895)	(15,575)
Equity in (loss) income of unconsolidated joint ventures	$ (17,994)	$ (10,448)	$ (7,788)

Leases - Additional Information

Leases - Additional Information (Detail) ft² in Millions	Mar. 12, 2019ft²Property	Feb. 28, 2019USD ($)LeaseOption	Dec. 31, 2019USD ($)Property	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Right to recapture property space			50.00%
Number of real estate specified properties			5
Right to recapture property space exercised			100.00%
Number of real estate properties acquisition exercised			70
Number of terminated properties commenced or completed for redevelopment			46
Number of terminated properties sold			24
Number of properties subject to ground lease			1
Number of properties subject to corporate office lease			1
ROU assets | $			$ 18,500,000
Lease liabilities | $			8,600,000
Increase in ROU assets | $			$ 11,000,000
Operating leases expiration year			2073
General and Administrative Expenses [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Rent expense | $			$ 1,600,000	$ 700,000	$ 700,000
Property Operating Expense
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Rent expense | $			$ 45,000	45,000	45,000
Sears Holdings Corporation [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Number of properties terminated under lease	31
Area of properties rejected under leases | ft²	4.3
Holdco Master Lease [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Lease expiration date		Jul. 31, 2025
Number of options for renewal of lease | Option		3
Renewal period of leases		5 years
Final option renewal period		4 years
Number of renewal term that will be increased | Lease		2
Percentage of increase annual lease rent		2.00%
Rent credit allocation description			The rent credit is allocated to specific properties based on the trailing twelve- month EBITDA of the particular property as of December 2018.
Number of real estate properties acquisition exercised			4
Lease termination, description			Under the terms of the Holdco Master Lease, Holdco has the right, at any time, to terminate the Holdco Master Lease with respect to any property upon the payment of a termination fee equal to one year of base rent plus annual taxes and other operating expenses.  Additionally, beginning in March 2020, the tenant has the right to terminate without payment of a termination fee: (i) up to 16 properties in the second year of the term of the Holdco Master Lease, (ii) up to 12 properties in the third year, (iii) up to 10 properties in the fourth year, and (iv) thereafter, the remaining properties, in each instance with carry over rights if less than the maximum permitted number of properties are terminated in any lease year.
Number of properties right to terminate without termination fee second year			16
Number of properties right to terminate without termination fee third year			12
Number of properties right to terminate without termination fee fourth year			10
Holdco Master Lease [Member] | Holdco [Member] | Lease Terminations [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Number of real estate properties acquisition exercised			29
Holdco Master Lease [Member] | Maximum [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Lease adjustment in form of rent credit | $		$ 12,000,000
Original and Holdco Master Lease [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Straight-line rental income | $			$ 300,000	$ (4,900,000)	$ 800,000
Master Lease [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Right to recapture property space			100.00%
Number of real estate properties wholly-owned			10
Right to recapture property space exercised			100.00%
Master Lease [Member] | Sears Holdings Corporation [Member] | Lease Terminations [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Number of real estate properties acquisition exercised			87
Original Master Lease [Member]
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]
Number of real estate properties acquisition exercised			3

Leases - Summary of Revenue fro

Leases - Summary of Revenue from Master Lease (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property Subject to or Available for Operating Lease [Line Items]
Fixed rental income	$ 104,956	$ 140,661	$ 154,599
Variable rental income	45,994	74,839	81,528
Total rental income	150,950	215,500	236,127
Original and Holdco Master Lease [Member]
Property Subject to or Available for Operating Lease [Line Items]
Fixed rental income	27,628	86,224	112,881
Variable rental income	23,525	65,450	70,987
Total rental income	$ 51,153	$ 151,674	$ 183,868

Leases - Summary of Recapture R

Leases - Summary of Recapture Rights Exercised by the Company (Detail)	12 Months Ended
	Dec. 31, 2019ft²Property
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	9,232
Number of Properties	71
Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	43	[1]
Partial Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	28	[2]
2019
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	629
Number of Properties	4
2019 | Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	3	[1]
2019 | Partial Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	1	[2]
2018
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	3,428
Number of Properties	20
2018 | Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	17	[1]
2018 | Partial Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	3	[2]
2017
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	3,302
Number of Properties	27
2017 | Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	16	[1]
2017 | Partial Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	11	[2]
2016
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	1,501
Number of Properties	17
2016 | Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	4	[1]
2016 | Partial Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	13	[2]
2015
Property Subject to or Available for Operating Lease [Line Items]
Gross leasable area | ft²	372
Number of Properties	3
2015 | Hundred Percent Recaptures
Property Subject to or Available for Operating Lease [Line Items]
Number of Properties	3	[1]
[1]	Includes properties for which the Company had converted partial recapture rights to 100% recapture rights.
[2]	Partial recaptures include the recapture of (i) up to approximately 50% of the space occupied by the tenant at all properties, (ii) automotive care centers which are free-standing or attached as “appendages” to the properties, and/or (iii) outparcels or outlots and certain portions of parking areas and common areas.

Leases - Summary of Recapture_2

Leases - Summary of Recapture Rights Exercised by the Company (Parenthetical) (Detail)	Dec. 31, 2019
Property Subject To Or Available For Operating Lease Net [Abstract]
Right to recapture property space exercised	100.00%
Right to recapture property space	50.00%

Leases - Summary of Termination

Leases - Summary of Termination and Redevelopement Properties (Detail)		12 Months Ended
		Dec. 31, 2019ft²Property	Dec. 31, 2018Property
Property Subject to or Available for Operating Lease [Line Items]
Area of real estate property (in square feet) | ft²		9,232
Number of Properties Classified		2	1
Lease Terminations [Member]
Property Subject to or Available for Operating Lease [Line Items]
Area of real estate property (in square feet) | ft²		16,060
Number of Properties Classified		116
Number of Properties Redeveloped by the Company		46
Number of Properties Sold by the Company		24
Lease Terminations [Member] | Master Lease [Member] | Holdco [Member] | November 2019 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2019-11
Termination Date		2020-03
Area of real estate property (in square feet) | ft²		4,332
Number of Properties Classified		29
Number of Properties Redeveloped by the Company		7
Number of Properties Sold by the Company		1
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | August 2018 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2018-08
Termination Date		2018-12
Area of real estate property (in square feet) | ft²		1,605
Number of Properties Classified		13
Number of Properties Redeveloped by the Company		6
Number of Properties Sold by the Company		3
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | June 2018 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2018-06
Termination Date	[1]	2018-11
Area of real estate property (in square feet) | ft²		1,218
Number of Properties Classified		9
Number of Properties Redeveloped by the Company		6
Number of Properties Sold by the Company		1
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | April 2018 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2018-04
Termination Date		2018-08
Area of real estate property (in square feet) | ft²		1,494
Number of Properties Classified		9
Number of Properties Redeveloped by the Company		4
Number of Properties Sold by the Company		1
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | June 2017 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2017-06
Termination Date	[2]	2017-10
Area of real estate property (in square feet) | ft²		3,812
Number of Properties Classified		20
Number of Properties Redeveloped by the Company		8
Number of Properties Sold by the Company		4
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | January 2017 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2017-01
Termination Date		2017-04
Area of real estate property (in square feet) | ft²		1,872
Number of Properties Classified		19
Number of Properties Redeveloped by the Company		7
Number of Properties Sold by the Company		8
Lease Terminations [Member] | Master Lease [Member] | Sears Holdings Corporation [Member] | September 2016 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Notice Date		2016-09
Termination Date		2017-01
Area of real estate property (in square feet) | ft²		1,727
Number of Properties Classified		17
Number of Properties Redeveloped by the Company		8
Number of Properties Sold by the Company		6
[1]	Two properties were terminated in October 2018.
[2]	One property was terminated in November 2017 and another one was terminated in January 2018.

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Rental Receipts excluding Variable Payments and Tenant Reimbursements of Expenses Under Non-cancelable Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
2020	$ 113,265
2021	121,909
2022	124,067
2023	119,745
2024	116,607
Thereafter	1,019,054
Total Lease Payments	$ 1,614,647
2019		$ 120,132
2020		122,263
2021		125,963
2022		124,949
2023		120,672
Thereafter		412,789
Total Lease Payments		$ 1,026,768

Leases - Components of Lease Re

Leases - Components of Lease Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lessor Disclosure [Abstract]
Fixed rental income	$ 104,956	$ 140,661	$ 154,599
Variable rental income	45,994	74,839	81,528
Total rental income	$ 150,950	$ 215,500	$ 236,127

Leases - Information Related to

Leases - Information Related to Measurement of Lease Liabilities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Lessee Disclosure [Abstract]
Weighted average remaining lease term (in years)	10 years 6 months 14 days
Weighted average discount rate	7.20%
Cash paid for operating leases	$ 2,161

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	Oct. 23, 2019	Jul. 31, 2018	Dec. 27, 2017	May 24, 2017	Feb. 23, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jul. 07, 2015
Debt Instrument [Line Items]
Debt instrument, base annual interest rate						6.50%
interest expenses	$ 5,000,000					$ 94,519,000	$ 90,020,000	$ 70,112,000
Debt instrument, interest rate terms						The principal amount of loans outstanding under the Unsecured Delayed Draw Term Loan, prior to its repayment, bore a base annual interest rate of 6.50%.
Mortgage Loans and Future Funding Facility [Member]
Debt Instrument [Line Items]
Principal amount outstanding						$ 0
Term Loan Facility [Member] | Berkshire Hathaway [Member]
Debt Instrument [Line Items]
Date of senior secured term loan agreement		Jul. 31, 2018
Principal amount outstanding		$ 2,000,000,000				$ 1,600,000,000
Line of credit, maturity date						Jul. 31, 2023
Minimum rental income to achieve from tenants on annual basis to access incremental funding facility		200,000,000
Minimum rental income to achieve from tenants for succeeding four consecutive fiscal quarters to access incremental funding facility		200,000,000
Minimum net worth required for loan documentation		$ 1,200,000,000
Default interest rate on overdue amounts excess of base interest rate		2.00%
Debt issuance costs		$ 2,100,000
Unamortized debt issuance costs						$ 1,500,000
Term Loan Facility [Member] | Berkshire Hathaway [Member] | Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio for each fiscal quarter till June 30, 2021		1.00%
Fixed charge coverage ratio for each fiscal quarter after June 30, 2021		1.20%
Unencumbered fixed charge coverage ratio for each fiscal quarter till June 30, 2021		1.05%
Unencumbered fixed charge coverage ratio to each fiscal quarter after June 30, 2021		1.30%
Term Loan Facility [Member] | Berkshire Hathaway [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unencumbered fixed charge coverage ratio		60.00%
Maximum leverage ratio		65.00%
Term Loan Facility [Member] | Berkshire Hathaway [Member] | Initial Funding [Member]
Debt Instrument [Line Items]
Principal amount outstanding		$ 1,600,000,000
Debt instrument, base annual interest rate		7.00%
Term Loan Facility [Member] | Berkshire Hathaway [Member] | Incremental Funding Facility [Member]
Debt Instrument [Line Items]
Principal amount outstanding		$ 400,000,000
Debt instrument, base annual interest rate		1.00%
Mortgage Loans [Member] | Mortgage Loans over $1,000,000 [Member]
Debt Instrument [Line Items]
Expiration date						Jul. 31, 2019
Interest rate description						Borrowings under the Mortgage Loans bore interest at the London Interbank Offered Rates (“LIBOR”) plus, as of July 31, 2018, a weighted-average spread of 485 basis points; payments were made monthly on an interest-only basis.
Basis spread on variable rate		4.85%
Frequency of interest payment						monthly
Mortgage Loans [Member] | Term Loans [Member] | Mortgage Loans over $1,000,000 [Member]
Debt Instrument [Line Items]
Loan, face amount									$ 1,161,000,000
Mortgage Loans [Member] | Future Funding Facility [Member]
Debt Instrument [Line Items]
Debt issuance costs						$ 22,300,000
Unamortized debt issuance costs						0	0
Mortgage Loans [Member] | Future Funding Facility [Member] | Mortgage Loans over $1,000,000 [Member]
Debt Instrument [Line Items]
Loan, face amount									$ 100,000,000
Weighted average interest rates								6.03%
Unsecured Delayed Draw Term Loan [Member]
Debt Instrument [Line Items]
Line of credit, maturity date					Dec. 31, 2017
Line of credit facility, maximum					$ 200,000,000
Amount outstanding at termination						85,000,000
Unsecured Delayed Draw Term Loan [Member] | Operating Partnership [Member]
Debt Instrument [Line Items]
Principal amount outstanding					200,000,000
Upfront commitment fee					$ 1,000,000
Additional and final commitment fee paid				$ 1,000,000
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Principal amount outstanding			$ 200,000,000			$ 0
Line of credit, maturity date						Dec. 31, 2018
Debt instrument, base annual interest rate						6.75%
Debt issuance costs		$ 1,800,000
Unamortized debt issuance costs						$ 0	$ 0
Line of credit facility, maximum						$ 200,000,000
Debt instrument, interest rate terms						The principal amount of loans outstanding under the Unsecured Term Loan bore a base annual interest rate of 6.75%.
Line of credit facility, current funding						$ 85,000,000
Additional Incremental loans						55,000,000
Line of credit facility, fee percentage			1.00%
Unsecured Term Loan [Member] | Empyrean Capital Partners, L.P. [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum						145,000,000
Line of credit facility, current funding						$ 60,000,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Contingency [Line Items]
Uncertain tax positions	$ 0	$ 0
Minimum [Member]
Income Tax Contingency [Line Items]
Distribution of taxable income to qualify as REIT, percent	90.00%

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2019USD ($)DerivativeInstrument
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of derivative instruments | DerivativeInstrument			0
Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt obligations, fair value	$ 1,600,000		$ 1,600,000
Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative gain (loss)	$ 23	$ 700

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Apr. 18, 2019	Dec. 31, 2019	Jul. 07, 2015
Loss Contingencies [Line Items]
Environmental reserve		$ 9.5	$ 12
Sears Holdings Corporation [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Worth of real estate in excess of purchase price paid	$ 649
Sears Holdings Corporation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Worth of real estate in excess of purchase price paid	$ 749

Related Party Disclosure - Addi

Related Party Disclosure - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule of Other Related Party Transactions [Line Items]
Property development expenditures receivable	$ 54,470	$ 36,926
Unconsolidated Joint Ventures [Member]
Schedule of Other Related Party Transactions [Line Items]
Percentage of fees for service performed on revenue earned from management and other fee income	100.00%
Property development expenditures receivable	$ 9,700	$ 2,100
Operating Partnership [Member] | Sears Holdings Corporation [Member] | ESL [Member]
Schedule of Other Related Party Transactions [Line Items]
Ownership interest percentage held by related party	33.90%
Operating Partnership [Member] | Sears Holdings Corporation [Member] | Class A Common Shares [Member] | ESL [Member]
Schedule of Other Related Party Transactions [Line Items]
Ownership interest percentage held by related party	2.40%
Operating Partnership [Member] | Sears Holdings Corporation [Member] | Class B Non-Economic Common Shares [Member] | ESL [Member]
Schedule of Other Related Party Transactions [Line Items]
Ownership interest percentage held by related party	100.00%

Non-controlling Interests - Add

Non-controlling Interests - Additional Information (Detail) - Operating Partnership [Member]	Dec. 31, 2019
Noncontrolling Interest [Line Items]
Percentage of operating partnership interest held by parent	66.10%
ESL [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by related party	33.90%

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Dec. 14, 2022	Feb. 25, 2019	Jul. 24, 2018	Feb. 20, 2018	Jul. 07, 2015	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 29, 2018	Dec. 31, 2016
Class of Stock [Line Items]
Stock issuance cost							$ 113	$ 3,526
Common shares, outstanding									0
Cash dividend declared						$ 0.25	$ 1	$ 1
Class A Common Shares [Member]
Class of Stock [Line Items]
Common shares, issued						36,897,364	35,667,521
OP Unit exchanges, shares						1,214,577	98,923	3,958,182
Common shares, outstanding						36,897,364	35,667,521	32,416,000		25,843,000
Common shares, par value					$ 0.01	$ 0.01	$ 0.01
Class A Common Shares [Member] | Rights Offering [Member]
Class of Stock [Line Items]
Common shares, issued					22,332,037
Common shares price per share					$ 29.58
Aggregate proceeds from issuance of common shares					$ 660,600
Stock issuance cost					$ 8,200
Class A Common Shares [Member] | General Growth Properties, Inc. [Member]
Class of Stock [Line Items]
Common shares, issued					1,125,760
Common shares price per share					$ 29.58
Aggregate proceeds from issuance of common shares					$ 33,300
Class A Common Shares [Member] | Simon Property Group Inc [Member]
Class of Stock [Line Items]
Common shares, issued					1,125,760
Common shares price per share					$ 29.58
Aggregate proceeds from issuance of common shares					$ 33,300
Class B Non-Economic Common Shares [Member]
Class of Stock [Line Items]
Common shares, issued						1,242,536
Common shares, outstanding						1,242,536
Common shares, par value					$ 0.01
Common shares surrendered						79,829
Class B Non-Economic Common Shares [Member] | ESL [Member]
Class of Stock [Line Items]
Common shares, issued					1,589,020
Aggregate proceeds from issuance of common shares					$ 900
Class C Non Voting Common Shares [Member]
Class of Stock [Line Items]
Common shares, issued					6,790,635	0
Common shares price per share					$ 29.58
Aggregate proceeds from issuance of common shares					$ 200,900
Common shares, outstanding						0
Common shares, par value					$ 0.01
Series A Cumulative Redeemable Preferred Shares [Member]
Class of Stock [Line Items]
Preferred shares, issued								2,800,000
Percentage of preferred dividend rate								7.00%
Preferred shares public offering price per share								$ 25
Net proceeds from public offering								$ 66,400
Series A Cumulative Redeemable Preferred Shares [Member] | Scenario, Forecast [Member]
Class of Stock [Line Items]
Preferred shares redemption price per share plus any accrued and unpaid dividends	$ 25
Series A Cumulative Redeemable Preferred Shares [Member] | Scenario, Forecast [Member] | Maximum [Member]
Class of Stock [Line Items]
Preferred shares redemption threshold period	120 days
Class A and Class C Common Share [Member]
Class of Stock [Line Items]
Cash dividend declared		$ 0.25	$ 0.25	$ 0.25		$ 0.25	$ 1	$ 1

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Common Stock Dividends and Distributions (Detail) - $ / shares	Feb. 25, 2019	Oct. 23, 2018	Jul. 24, 2018	Apr. 24, 2018	Feb. 20, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividends Payable [Line Items]
Dividends per Class A and Class C Common Share						$ 0.25	$ 1	$ 1
Class A and Class C Common Share [Member]
Dividends Payable [Line Items]
Declaration Date	Feb. 25, 2019	Oct. 23, 2018	Jul. 24, 2018	Apr. 24, 2018	Feb. 20, 2018
Record Date	Mar. 29, 2019	Dec. 31, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018
Payment Date	Apr. 11, 2019	Jan. 10, 2019	Oct. 11, 2018	Jul. 12, 2018	Apr. 12, 2018
Dividends per Class A and Class C Common Share	$ 0.25		$ 0.25		$ 0.25	$ 0.25	$ 1	$ 1

Shareholders' Equity - Summar_2

Shareholders' Equity - Summary of Dividends Reflected for U.S. Federal Income Tax Purposes (Detail) - $ / shares		Feb. 25, 2019	Jul. 24, 2018	Feb. 20, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividends Payable [Line Items]
Total					$ 0.25	$ 1	$ 1
Class A and Class C Common Share [Member]
Dividends Payable [Line Items]
Total		$ 0.25	$ 0.25	$ 0.25	0.25	1	1
Class A and Class C Common Share [Member] | Federal Income Tax [Member] | Dividend Declared [Member]
Dividends Payable [Line Items]
Ordinary income						0.01	0.53
Capital gain distributions					0	0.35	0.47
Return of capital					0.50	0.39	0
Dividends reallocation	[1]				(0.25)	0.25	0
Total					$ 0.25	$ 1	$ 1
[1]	In 2018, the fourth quarter dividend of 2018 declared on October 23, 2018 was allocated to the 2019 tax year.

Shareholders' Equity - Summar_3

Shareholders' Equity - Summary of Preferred Stock Dividends and Distributions (Detail) - $ / shares

Oct. 23, 2019

Jul. 23, 2019

Feb. 25, 2019

Oct. 23, 2018

Jul. 24, 2018

Apr. 24, 2018

Feb. 20, 2018

Apr. 30, 2019

Dec. 31, 2017

[1]

Dec. 31, 2019

Dec. 31, 2018

Dividends Payable [Line Items]

Preferred Share

$ 1.75

$ 1.75

Series A Preferred Shares [Member]

Dividends Payable [Line Items]

Declaration Date

Oct. 31, 2023

Jul. 31, 2023

Feb. 28, 2025

Oct. 31, 2023

Jul. 31, 2024

Apr. 30, 2024

Feb. 29, 2020

Apr. 30, 2030

Feb. 29, 2020

Record Date

Dec. 31, 2031

Sep. 30, 2030

Mar. 31, 2029

Dec. 31, 2031

Sep. 30, 2028

Jun. 30, 2029

Mar. 31, 2030

Jun. 30, 2028

Mar. 31, 2030

Payment Date

Jan. 15, 2020

Oct. 31, 2015

Apr. 30, 2015

Jan. 14, 2019

Oct. 31, 2015

Jul. 31, 2016

Apr. 30, 2016

Jul. 31, 2015

Apr. 30, 2016

Preferred Share

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.43750

$ 0.15556

[1]

This dividend covers the period from, and including, December 14, 2017 to December 31, 2017.

Earnings per Share - Reconcilia

Earnings per Share - Reconciliation of Net Income (Loss) and Number of Common Shares Used in Computations of Basic Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator - Basic and Diluted
Net loss	$ (37,342)	$ (16,482)	$ (25,885)	$ (10,894)	$ (85,733)	$ (34,744)	$ (10,602)	$ 16,201	$ (90,603)	$ (114,878)	$ (120,813)
Net loss attributable to non-controlling interests									31,206	41,406	47,059
Preferred dividends									(4,900)	(4,903)	(245)
Net loss attributable to Seritage common shareholders	$ (25,874)	$ (12,103)	$ (18,128)	$ (8,192)	$ (56,038)	$ (23,441)	$ (7,996)	$ 9,100	(64,297)	(78,375)	(73,999)
Net loss available to common shareholders - Basic and diluted									$ (64,297)	$ (78,375)	$ (73,999)
Denominator - Basic and Diluted
Weighted average common shares outstanding									36,413	35,560	33,804
Net income (loss) per share attributable to Class A and Class C common shareholders									$ (1.77)	$ (2.20)	$ (2.19)
Class A Common Shares [Member]
Denominator - Basic and Diluted
Weighted average common shares outstanding									36,413	35,103	28,249
Class C Common Shares [Member]
Denominator - Basic and Diluted
Weighted average common shares outstanding										457	5,555

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Time Based Restricted Shares and Share Units [Member]
Earning Per Share [Line Items]
Non-vested restricted shares outstanding	349,318	403,129	245,570

Share Based Compensation - Addi

Share Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 07, 2015
Time Based Restricted Shares and Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Share [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	$ 7.4	$ 9.3
Unrecognized compensation costs, weighted average expected recognition period	1 year 7 months 6 days	1 year 10 months 24 days
Restricted Share [Member] | General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized		$ 6.8	$ 7.5	$ 7
Seritage Growth Properties 2015 Share Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance					3,250,000

Share Based Compensation - Summ

Share Based Compensation - Summary of Restricted Share (Detail) - Restricted Share [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted shares at beginning of period	403,129	245,570
Restricted shares granted	76,948	261,059
Restricted shares vested	(127,767)	(99,956)
Restricted shares forfeited	(2,992)	(3,544)
Unvested restricted shares at end of period	349,318	403,129
Weighted-Average Grant Date Fair Value, Unvested restricted shares at beginning of period	$ 41.57	$ 41.33
Weighted-Average Grant Date Fair Value, Restricted shares granted	57.04	40.80
Weighted-Average Grant Date Fair Value, Restricted shares vested	41.76	39.04
Weighted-Average Grant Date Fair Value, Restricted shares forfeited	45.02	38.83
Weighted-Average Grant Date Fair Value, Unvested restricted shares at end of period	$ 44.88	$ 41.57

Quarterly Financial Informati_3

Quarterly Financial Information (unaudited) - Summary of Selected Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost And Reserve [Line Items]
Total revenue		$ 36,634	$ 47,628	$ 40,511	$ 43,860	$ 55,114	$ 56,593	$ 49,270	$ 53,777	$ 168,633	$ 214,754	$ 241,017
Total expenses		69,750	50,349	47,952	56,404	120,839	76,802	74,083	61,147	224,455	332,871	355,584
Net loss		(37,342)	(16,482)	(25,885)	(10,894)	(85,733)	(34,744)	(10,602)	16,201	(90,603)	(114,878)	(120,813)
Net income (loss) attributable to common shareholders		$ (25,874)	$ (12,103)	$ (18,128)	$ (8,192)	$ (56,038)	$ (23,441)	$ (7,996)	$ 9,100	$ (64,297)	$ (78,375)	$ (73,999)
Net income (loss) per share attributable to Class A and Class C common shareholders - Basic		$ (0.70)	$ (0.33)	$ (0.50)	$ (0.23)	$ (1.57)	$ (0.66)	$ (0.23)	$ 0.26	$ (1.77)	$ (2.20)	$ (2.19)
Net income (loss) per share attributable to Class A and Class C common shareholders - Diluted		$ (0.70)	$ (0.33)	$ (0.50)	$ (0.23)	$ (1.57)	$ (0.66)	$ (0.23)	$ 0.26	$ (1.77)	$ (2.20)	$ (2.19)
Weighted average Class A and Class C common shares outstanding - Basic		36,846	36,829	36,291	35,671	35,589	35,598	35,483	35,414	36,413	35,560	33,804
Weighted average Class A and Class C common shares outstanding - Diluted		36,846	36,829	36,291	35,671	35,589	35,598	35,483	35,501	36,413	35,560	33,804
Gains on the sale of interests	[1]	$ 25,786	$ 12,445	$ 11,613	$ 21,260	$ 2,745	$ 17,401	$ 34,187	$ 41,831
Holdco and Sears Holdings Corporation [Member]
Restructuring Cost And Reserve [Line Items]
Depreciation and amortization expense	[2]	$ 18,548	$ 4,286	$ 2,059	$ 10,800	$ 78,311	$ 31,444	$ 26,758	$ 11,016
[1]	Denotes gains on the on the sale of interests in unconsolidated joint ventures and gains on the sale of real estate.
[2]	Denotes depreciation and amortization expense related to the demolition of certain buildings for redevelopment and the accelerated amortization of certain lease intangibles

Schedule III - Real Estate an_2

Schedule III - Real Estate and Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 663,044
Acquisition Costs, Buildings and Improvements	693,550
Costs Capitalized Subsequent to Acquisition, Land	3,960
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	757,775
Gross Amount at Which Carried at Close of Period , Land	667,004
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,451,325
Gross Amount at Which Carried at Close of Period, Total	2,118,329	$ 1,889,014	$ 1,854,043	$ 1,734,892
Accumulated Depreciation	(147,696)	$ (137,947)	$ (139,483)	$ (89,940)
Broadway Center - Merrillville, IN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	3,413
Acquisition Costs, Buildings and Improvements	3,224
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	612
Gross Amount at Which Carried at Close of Period , Land	3,413
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,836
Gross Amount at Which Carried at Close of Period, Total	7,249
Accumulated Depreciation	$ (1,585)
Date Acquired	2015-07
Stand-Alone Location - Tulsa, OK [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,048
Acquisition Costs, Buildings and Improvements	5,386
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,767
Gross Amount at Which Carried at Close of Period , Land	2,048
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,153
Gross Amount at Which Carried at Close of Period, Total	10,201
Accumulated Depreciation	$ (1,688)
Date Acquired	2015-07
Stand-Alone Location - St. Petersburg, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,653
Acquisition Costs, Buildings and Improvements	777
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(279)
Gross Amount at Which Carried at Close of Period , Land	1,653
Gross Amount at Which Carried at Close of Period, Building and Improvements	498
Gross Amount at Which Carried at Close of Period, Total	2,151
Accumulated Depreciation	$ (75)
Date Acquired	2015-07
Sherwood Plaza - Springfield, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,182
Acquisition Costs, Buildings and Improvements	5,051
Costs Capitalized Subsequent to Acquisition, Land	(213)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,796
Gross Amount at Which Carried at Close of Period , Land	1,969
Gross Amount at Which Carried at Close of Period, Building and Improvements	19,847
Gross Amount at Which Carried at Close of Period, Total	21,816
Accumulated Depreciation	$ (1,600)
Date Acquired	2015-07
Kmart Plazan - North Canton, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,044
Acquisition Costs, Buildings and Improvements	1,126
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1
Gross Amount at Which Carried at Close of Period , Land	1,044
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,127
Gross Amount at Which Carried at Close of Period, Total	2,171
Accumulated Depreciation	$ (549)
Date Acquired	2015-07
North Pointe Plaza - Elkhart, IN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,349
Acquisition Costs, Buildings and Improvements	869
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	36
Gross Amount at Which Carried at Close of Period , Land	1,349
Gross Amount at Which Carried at Close of Period, Building and Improvements	905
Gross Amount at Which Carried at Close of Period, Total	2,254
Accumulated Depreciation	$ (386)
Date Acquired	2015-07
Kedzie Square - Chicago, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,385
Acquisition Costs, Buildings and Improvements	7,924
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	17
Gross Amount at Which Carried at Close of Period , Land	2,385
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,941
Gross Amount at Which Carried at Close of Period, Total	10,326
Accumulated Depreciation	$ (1,585)
Date Acquired	2015-07
Stand-Alone Location - Kearney, NE [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 272
Acquisition Costs, Buildings and Improvements	483
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,838
Gross Amount at Which Carried at Close of Period , Land	272
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,321
Gross Amount at Which Carried at Close of Period, Total	8,593
Accumulated Depreciation	$ (546)
Date Acquired	2015-07
Stand-Alone Location - Riverside, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,670
Acquisition Costs, Buildings and Improvements	2,489
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	66
Gross Amount at Which Carried at Close of Period , Land	2,670
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,555
Gross Amount at Which Carried at Close of Period, Total	5,225
Accumulated Depreciation	$ (1,002)
Date Acquired	2015-07
Braintree Marketplace - Braintree, MA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,585
Acquisition Costs, Buildings and Improvements	5,614
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,308
Gross Amount at Which Carried at Close of Period , Land	6,585
Gross Amount at Which Carried at Close of Period, Building and Improvements	16,922
Gross Amount at Which Carried at Close of Period, Total	23,507
Accumulated Depreciation	$ (2,329)
Date Acquired	2015-07
Western Plaza - Mayaguez, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 564
Acquisition Costs, Buildings and Improvements	4,555
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	564
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,555
Gross Amount at Which Carried at Close of Period, Total	5,119
Accumulated Depreciation	$ (1,149)
Date Acquired	2015-07
Stand-Alone Location - Delano, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,905
Acquisition Costs, Buildings and Improvements	2,208
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,905
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,208
Gross Amount at Which Carried at Close of Period, Total	4,113
Accumulated Depreciation	$ (592)
Date Acquired	2015-07
Stand-Alone Location - Walnutport, PA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 885
Acquisition Costs, Buildings and Improvements	3,452
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	885
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,452
Gross Amount at Which Carried at Close of Period, Total	4,337
Accumulated Depreciation	$ (1,268)
Date Acquired	2015-07
Stand-Alone Location - St. Clair Shores, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,399
Acquisition Costs, Buildings and Improvements	1,797
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(129)
Gross Amount at Which Carried at Close of Period , Land	2,399
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,668
Gross Amount at Which Carried at Close of Period, Total	4,067
Accumulated Depreciation	$ (232)
Date Acquired	2015-07
Kmart Center - Antioch, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,594
Acquisition Costs, Buildings and Improvements	2,525
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,594
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,525
Gross Amount at Which Carried at Close of Period, Total	4,119
Accumulated Depreciation	$ (741)
Date Acquired	2015-07
Stand-Alone Location - El Paso, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,008
Acquisition Costs, Buildings and Improvements	1,778
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,427
Gross Amount at Which Carried at Close of Period , Land	2,008
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,205
Gross Amount at Which Carried at Close of Period, Total	6,213
Accumulated Depreciation	$ (237)
Date Acquired	2015-07
Big Bear Lake Shopping Center - Big Bear Lake, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,664
Acquisition Costs, Buildings and Improvements	2,945
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	66
Gross Amount at Which Carried at Close of Period , Land	3,664
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,011
Gross Amount at Which Carried at Close of Period, Total	6,675
Accumulated Depreciation	$ (792)
Date Acquired	2015-07
Stand-Alone Location - Hialeah, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,492
Acquisition Costs, Buildings and Improvements	2,344
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,480
Gross Amount at Which Carried at Close of Period , Land	5,492
Gross Amount at Which Carried at Close of Period, Building and Improvements	15,824
Gross Amount at Which Carried at Close of Period, Total	21,316
Accumulated Depreciation	$ (701)
Date Acquired	2015-07
Stand-Alone Location - North Miami, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,748
Acquisition Costs, Buildings and Improvements	2,434
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(278)
Gross Amount at Which Carried at Close of Period , Land	4,748
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,156
Gross Amount at Which Carried at Close of Period, Total	6,904
Accumulated Depreciation	$ (323)
Date Acquired	2015-07
Flower Valley Shopping Center - Florissant, MO [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,430
Acquisition Costs, Buildings and Improvements	1,607
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	221
Gross Amount at Which Carried at Close of Period , Land	2,430
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,828
Gross Amount at Which Carried at Close of Period, Total	4,258
Accumulated Depreciation	$ (176)
Date Acquired	2015-07
Stand-Alone Location - Steger, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 589
Acquisition Costs, Buildings and Improvements	2,846
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	589
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,846
Gross Amount at Which Carried at Close of Period, Total	3,435
Accumulated Depreciation	$ (479)
Date Acquired	2015-07
Hillside Plaza - Manistee, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 508
Acquisition Costs, Buildings and Improvements	3,045
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(625)
Gross Amount at Which Carried at Close of Period , Land	508
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,420
Gross Amount at Which Carried at Close of Period, Total	2,928
Accumulated Depreciation	$ (330)
Date Acquired	2015-07
Thornton Place - Thornton, CO [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,881
Acquisition Costs, Buildings and Improvements	1,300
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,899
Gross Amount at Which Carried at Close of Period , Land	1,881
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,199
Gross Amount at Which Carried at Close of Period, Total	6,080
Accumulated Depreciation	$ (378)
Date Acquired	2015-07
Stand-Alone Location - Jefferson City, MO [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 957
Acquisition Costs, Buildings and Improvements	2,224
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	285
Gross Amount at Which Carried at Close of Period , Land	957
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,509
Gross Amount at Which Carried at Close of Period, Total	3,466
Accumulated Depreciation	$ (743)
Date Acquired	2015-07
Stand-Alone Location - New Iberia, LA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 450
Acquisition Costs, Buildings and Improvements	1,819
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,629
Gross Amount at Which Carried at Close of Period , Land	450
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,448
Gross Amount at Which Carried at Close of Period, Total	8,898
Accumulated Depreciation	$ (1,057)
Date Acquired	2015-07
Mill Creek Marketplace - McKinleyville, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,354
Acquisition Costs, Buildings and Improvements	1,655
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,354
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,655
Gross Amount at Which Carried at Close of Period, Total	3,009
Accumulated Depreciation	$ (646)
Date Acquired	2015-07
Center of Osceola - Kissimmee, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,107
Acquisition Costs, Buildings and Improvements	2,556
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	47
Gross Amount at Which Carried at Close of Period , Land	2,107
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,603
Gross Amount at Which Carried at Close of Period, Total	4,710
Accumulated Depreciation	$ (925)
Date Acquired	2015-07
Beachway Plaza - Bradenton, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,420
Acquisition Costs, Buildings and Improvements	1,479
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(414)
Gross Amount at Which Carried at Close of Period , Land	1,420
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,065
Gross Amount at Which Carried at Close of Period, Total	2,485
Accumulated Depreciation	$ (155)
Date Acquired	2015-07
Antelope Square - Layton, UT [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,234
Acquisition Costs, Buildings and Improvements	974
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,792
Gross Amount at Which Carried at Close of Period , Land	2,234
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,766
Gross Amount at Which Carried at Close of Period, Total	8,000
Accumulated Depreciation	$ (832)
Date Acquired	2015-07
Stand-Alone Location - Honolulu, HI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,824
Acquisition Costs, Buildings and Improvements	2,195
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,276
Gross Amount at Which Carried at Close of Period , Land	6,824
Gross Amount at Which Carried at Close of Period, Building and Improvements	23,471
Gross Amount at Which Carried at Close of Period, Total	30,295
Accumulated Depreciation	$ (1,779)
Date Acquired	2015-07
Ramona Station - Ramona CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,239
Acquisition Costs, Buildings and Improvements	1,452
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(318)
Gross Amount at Which Carried at Close of Period , Land	7,239
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,134
Gross Amount at Which Carried at Close of Period, Total	8,373
Accumulated Depreciation	$ (156)
Date Acquired	2015-07
Pennyrile Marketplace - Hopkinsville, KY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 553
Acquisition Costs, Buildings and Improvements	2,815
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,202
Gross Amount at Which Carried at Close of Period , Land	553
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,017
Gross Amount at Which Carried at Close of Period, Total	5,570
Accumulated Depreciation	$ (461)
Date Acquired	2015-07
Stand-Alone Location - Santa Paula, CA[Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,002
Acquisition Costs, Buildings and Improvements	1,147
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,002
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,147
Gross Amount at Which Carried at Close of Period, Total	3,149
Accumulated Depreciation	$ (676)
Date Acquired	2015-07
Stand-Alone Location - Olean, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 249
Acquisition Costs, Buildings and Improvements	2,124
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,133
Gross Amount at Which Carried at Close of Period , Land	249
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,257
Gross Amount at Which Carried at Close of Period, Total	7,506
Accumulated Depreciation	$ (422)
Date Acquired	2015-07
Sidney Plaza - Sidney, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,942
Acquisition Costs, Buildings and Improvements	1,769
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(641)
Gross Amount at Which Carried at Close of Period , Land	1,942
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,128
Gross Amount at Which Carried at Close of Period, Total	3,070
Accumulated Depreciation	$ (154)
Date Acquired	2015-07
Kmart & Lowes Shopping Center - Lebanon, PA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,333
Acquisition Costs, Buildings and Improvements	2,085
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(952)
Gross Amount at Which Carried at Close of Period , Land	1,333
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,133
Gross Amount at Which Carried at Close of Period, Total	2,466
Accumulated Depreciation	$ (154)
Date Acquired	2015-07
South River Colony - Edgewater, MD [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,534
Acquisition Costs, Buildings and Improvements	2,116
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(630)
Gross Amount at Which Carried at Close of Period , Land	5,534
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,486
Gross Amount at Which Carried at Close of Period, Total	7,020
Accumulated Depreciation	$ (202)
Date Acquired	2015-07
Columbus Centre - Columbus, MS [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,940
Acquisition Costs, Buildings and Improvements	2,547
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,187
Gross Amount at Which Carried at Close of Period , Land	2,940
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,734
Gross Amount at Which Carried at Close of Period, Total	6,674
Accumulated Depreciation	$ (1,445)
Date Acquired	2015-07
Stand Alone Location - Rehoboth Beach, DE [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 714
Acquisition Costs, Buildings and Improvements	4,523
Costs Capitalized Subsequent to Acquisition, Land	(134)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,837
Gross Amount at Which Carried at Close of Period , Land	580
Gross Amount at Which Carried at Close of Period, Building and Improvements	11,360
Gross Amount at Which Carried at Close of Period, Total	11,940
Accumulated Depreciation	$ (1,860)
Date Acquired	2015-07
Ponce Towne Center - Ponce, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 473
Acquisition Costs, Buildings and Improvements	3,965
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	473
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,965
Gross Amount at Which Carried at Close of Period, Total	4,438
Accumulated Depreciation	$ (953)
Date Acquired	2015-07
Promenade in Temecula - Temecula, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,098
Acquisition Costs, Buildings and Improvements	2,214
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,525
Gross Amount at Which Carried at Close of Period , Land	6,098
Gross Amount at Which Carried at Close of Period, Building and Improvements	10,739
Gross Amount at Which Carried at Close of Period, Total	16,837
Accumulated Depreciation	$ (1,240)
Date Acquired	2015-07
Boulevard Market Fair - Anderson, SC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,297
Acquisition Costs, Buildings and Improvements	638
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,325
Gross Amount at Which Carried at Close of Period , Land	1,297
Gross Amount at Which Carried at Close of Period, Building and Improvements	9,963
Gross Amount at Which Carried at Close of Period, Total	11,260
Accumulated Depreciation	$ (1,547)
Date Acquired	2015-07
Stand-Alone Location - Deming, NM [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,085
Acquisition Costs, Buildings and Improvements	1,194
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,085
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,194
Gross Amount at Which Carried at Close of Period, Total	2,279
Accumulated Depreciation	$ (586)
Date Acquired	2015-07
Stand-Alone Location - Charles City, IA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 793
Acquisition Costs, Buildings and Improvements	1,914
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	793
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,914
Gross Amount at Which Carried at Close of Period, Total	2,707
Accumulated Depreciation	$ (763)
Date Acquired	2015-07
Plaza Guaynabo - Guaynabo, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,603
Acquisition Costs, Buildings and Improvements	26,695
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,042
Gross Amount at Which Carried at Close of Period , Land	1,603
Gross Amount at Which Carried at Close of Period, Building and Improvements	31,737
Gross Amount at Which Carried at Close of Period, Total	33,340
Accumulated Depreciation	$ (4,518)
Date Acquired	2015-07
Rexville (Bayamon) Towne Center - Bayamon, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 656
Acquisition Costs, Buildings and Improvements	7,173
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1
Gross Amount at Which Carried at Close of Period , Land	656
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,174
Gross Amount at Which Carried at Close of Period, Total	7,830
Accumulated Depreciation	$ (1,318)
Date Acquired	2015-07
Westland Shopping Center - Lakewood, CO [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,290
Acquisition Costs, Buildings and Improvements	4,550
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,290
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,550
Gross Amount at Which Carried at Close of Period, Total	5,840
Accumulated Depreciation	$ (1,017)
Date Acquired	2015-07
Webster City Plaza - Webster City, IA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 392
Acquisition Costs, Buildings and Improvements	896
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	392
Gross Amount at Which Carried at Close of Period, Building and Improvements	896
Gross Amount at Which Carried at Close of Period, Total	1,288
Accumulated Depreciation	$ (301)
Date Acquired	2015-07
Stand-Alone Location - Kenton, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 340
Acquisition Costs, Buildings and Improvements	417
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(233)
Gross Amount at Which Carried at Close of Period , Land	340
Gross Amount at Which Carried at Close of Period, Building and Improvements	184
Gross Amount at Which Carried at Close of Period, Total	524
Accumulated Depreciation	$ (25)
Date Acquired	2015-07
Midtown Shopping Center - Madawaska, ME [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 140
Acquisition Costs, Buildings and Improvements	942
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	140
Gross Amount at Which Carried at Close of Period, Building and Improvements	942
Gross Amount at Which Carried at Close of Period, Total	1,082
Accumulated Depreciation	$ (191)
Date Acquired	2015-07
Countryside Shopping Center - Mount Pleasant, PA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 970
Acquisition Costs, Buildings and Improvements	1,520
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,696
Gross Amount at Which Carried at Close of Period , Land	970
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,216
Gross Amount at Which Carried at Close of Period, Total	5,186
Accumulated Depreciation	$ (281)
Date Acquired	2015-07
Eastern Commons Shopping Center - Henderson, NV [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,124
Acquisition Costs, Buildings and Improvements	1,362
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,023
Gross Amount at Which Carried at Close of Period , Land	3,124
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,385
Gross Amount at Which Carried at Close of Period, Total	6,509
Accumulated Depreciation	$ (216)
Date Acquired	2015-07
The Mall at Rockingham Park - Salem, NH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,321
Acquisition Costs, Buildings and Improvements	12,198
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,766
Gross Amount at Which Carried at Close of Period , Land	3,321
Gross Amount at Which Carried at Close of Period, Building and Improvements	21,964
Gross Amount at Which Carried at Close of Period, Total	25,285
Accumulated Depreciation	$ (2,809)
Date Acquired	2015-07
Stand-Alone Location - Algona, IA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 644
Acquisition Costs, Buildings and Improvements	2,796
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	644
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,796
Gross Amount at Which Carried at Close of Period, Total	3,440
Accumulated Depreciation	$ (692)
Date Acquired	2015-07
Square One Mall - Saugus, MA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,656
Acquisition Costs, Buildings and Improvements	2,835
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,656
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,835
Gross Amount at Which Carried at Close of Period, Total	4,491
Accumulated Depreciation	$ (1,250)
Date Acquired	2015-07
Valley View Center - Valley View, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,706
Acquisition Costs, Buildings and Improvements	3,230
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(3,230)
Gross Amount at Which Carried at Close of Period , Land	4,706
Gross Amount at Which Carried at Close of Period, Total	$ 4,706
Date Acquired	2015-07
Memorial City SC - Memorial, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,967
Acquisition Costs, Buildings and Improvements	4,625
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(812)
Gross Amount at Which Carried at Close of Period , Land	7,967
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,813
Gross Amount at Which Carried at Close of Period, Total	11,780
Accumulated Depreciation	$ (591)
Date Acquired	2015-07
Overlake Plaza - Redmond Pk, WA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,133
Acquisition Costs, Buildings and Improvements	4,133
Costs Capitalized Subsequent to Acquisition, Land	10,513
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(244)
Gross Amount at Which Carried at Close of Period , Land	15,646
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,889
Gross Amount at Which Carried at Close of Period, Total	19,535
Accumulated Depreciation	$ (1,337)
Date Acquired	2015-07
Stand-Alone Location - Cullman, AL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 947
Acquisition Costs, Buildings and Improvements	846
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,059
Gross Amount at Which Carried at Close of Period , Land	947
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,905
Gross Amount at Which Carried at Close of Period, Total	5,852
Accumulated Depreciation	$ (410)
Date Acquired	2015-07
Superstition Springs Center - Mesa/East, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,661
Acquisition Costs, Buildings and Improvements	2,559
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(642)
Gross Amount at Which Carried at Close of Period , Land	2,661
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,917
Gross Amount at Which Carried at Close of Period, Total	4,578
Accumulated Depreciation	$ (261)
Date Acquired	2015-07
Southridge Mall - Greendale, WI [Memeber]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,208
Acquisition Costs, Buildings and Improvements	2,340
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,406
Gross Amount at Which Carried at Close of Period , Land	3,208
Gross Amount at Which Carried at Close of Period, Building and Improvements	16,746
Gross Amount at Which Carried at Close of Period, Total	19,954
Accumulated Depreciation	$ (594)
Date Acquired	2015-07
Stand-Alone Location - Sault Ste. Marie, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 946
Acquisition Costs, Buildings and Improvements	917
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(478)
Gross Amount at Which Carried at Close of Period , Land	946
Gross Amount at Which Carried at Close of Period, Building and Improvements	439
Gross Amount at Which Carried at Close of Period, Total	1,385
Accumulated Depreciation	$ (64)
Date Acquired	2015-07
Rhode Island Mall - Warwick, RI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 9,166
Acquisition Costs, Buildings and Improvements	3,388
Costs Capitalized Subsequent to Acquisition, Land	(696)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,816
Gross Amount at Which Carried at Close of Period , Land	8,470
Gross Amount at Which Carried at Close of Period, Building and Improvements	12,204
Gross Amount at Which Carried at Close of Period, Total	20,674
Accumulated Depreciation	$ (672)
Date Acquired	2015-07
Paddock Mall - Ocala, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,468
Acquisition Costs, Buildings and Improvements	1,150
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(456)
Gross Amount at Which Carried at Close of Period , Land	2,468
Gross Amount at Which Carried at Close of Period, Building and Improvements	694
Gross Amount at Which Carried at Close of Period, Total	3,162
Accumulated Depreciation	$ (101)
Date Acquired	2015-07
Caguas Mall - Caguas, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 431
Acquisition Costs, Buildings and Improvements	9,362
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	431
Gross Amount at Which Carried at Close of Period, Building and Improvements	9,362
Gross Amount at Which Carried at Close of Period, Total	9,793
Accumulated Depreciation	$ (1,604)
Date Acquired	2015-07
The Mall at Sears - Anchorage(Sur), AK [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 11,517
Acquisition Costs, Buildings and Improvements	11,729
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	19,339
Gross Amount at Which Carried at Close of Period , Land	11,517
Gross Amount at Which Carried at Close of Period, Building and Improvements	31,068
Gross Amount at Which Carried at Close of Period, Total	42,585
Accumulated Depreciation	$ (2,247)
Date Acquired	2015-07
Stand-Alone Location - Chicago, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 905
Acquisition Costs, Buildings and Improvements	804
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(241)
Gross Amount at Which Carried at Close of Period , Land	905
Gross Amount at Which Carried at Close of Period, Building and Improvements	563
Gross Amount at Which Carried at Close of Period, Total	1,468
Accumulated Depreciation	$ (87)
Date Acquired	2015-07
University Mall - Pensacola, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,620
Acquisition Costs, Buildings and Improvements	2,990
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,414
Gross Amount at Which Carried at Close of Period , Land	2,620
Gross Amount at Which Carried at Close of Period, Building and Improvements	9,404
Gross Amount at Which Carried at Close of Period, Total	12,024
Accumulated Depreciation	$ (30)
Date Acquired	2015-07
Metcalf South Shopping Center - Overland Pk, KS [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,775
Acquisition Costs, Buildings and Improvements	1,766
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(646)
Gross Amount at Which Carried at Close of Period , Land	2,775
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,120
Gross Amount at Which Carried at Close of Period, Total	3,895
Accumulated Depreciation	$ (172)
Date Acquired	2015-07
Colonie Center - Albany, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 8,289
Acquisition Costs, Buildings and Improvements	6,523
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,410
Gross Amount at Which Carried at Close of Period , Land	8,289
Gross Amount at Which Carried at Close of Period, Building and Improvements	12,933
Gross Amount at Which Carried at Close of Period, Total	21,222
Accumulated Depreciation	$ (1,260)
Date Acquired	2015-07
Stand-Alone Location - St Paul, MN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,866
Acquisition Costs, Buildings and Improvements	1,028
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(309)
Gross Amount at Which Carried at Close of Period , Land	1,866
Gross Amount at Which Carried at Close of Period, Building and Improvements	719
Gross Amount at Which Carried at Close of Period, Total	2,585
Accumulated Depreciation	$ (107)
Date Acquired	2015-07
Clackamas Town Center - Happy Valley, OR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,659
Acquisition Costs, Buildings and Improvements	1,271
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(166)
Gross Amount at Which Carried at Close of Period , Land	6,659
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,105
Gross Amount at Which Carried at Close of Period, Total	7,764
Accumulated Depreciation	$ (160)
Date Acquired	2015-07
Maplewood Mall - Maplewood, MN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,605
Acquisition Costs, Buildings and Improvements	1,162
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(521)
Gross Amount at Which Carried at Close of Period , Land	3,605
Gross Amount at Which Carried at Close of Period, Building and Improvements	641
Gross Amount at Which Carried at Close of Period, Total	4,246
Accumulated Depreciation	$ (96)
Date Acquired	2015-07
Stand Alone Location - Okla City/Sequoyah, OK [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,542
Acquisition Costs, Buildings and Improvements	2,210
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,631
Gross Amount at Which Carried at Close of Period , Land	1,542
Gross Amount at Which Carried at Close of Period, Building and Improvements	6,841
Gross Amount at Which Carried at Close of Period, Total	8,383
Accumulated Depreciation	$ (539)
Date Acquired	2015-07
Stand-Alone Location - Shepherd, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,457
Acquisition Costs, Buildings and Improvements	2,081
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(510)
Gross Amount at Which Carried at Close of Period , Land	5,457
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,571
Gross Amount at Which Carried at Close of Period, Total	7,028
Accumulated Depreciation	$ (244)
Date Acquired	2015-07
Burnsville Center - Burnsville, MN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,513
Acquisition Costs, Buildings and Improvements	1,281
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(505)
Gross Amount at Which Carried at Close of Period , Land	3,513
Gross Amount at Which Carried at Close of Period, Building and Improvements	776
Gross Amount at Which Carried at Close of Period, Total	4,289
Accumulated Depreciation	$ (113)
Date Acquired	2015-07
Wolfchase Galleria - Cordova, TN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,581
Acquisition Costs, Buildings and Improvements	4,279
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,581
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,279
Gross Amount at Which Carried at Close of Period, Total	6,860
Accumulated Depreciation	$ (1,025)
Date Acquired	2015-07
Pacific View Mall - Ventura, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,578
Acquisition Costs, Buildings and Improvements	6,172
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	5,578
Gross Amount at Which Carried at Close of Period, Building and Improvements	6,172
Gross Amount at Which Carried at Close of Period, Total	11,750
Accumulated Depreciation	$ (841)
Date Acquired	2015-07
Stand-Alone Location - Central Park, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,468
Acquisition Costs, Buildings and Improvements	1,457
Costs Capitalized Subsequent to Acquisition, Land	(1,904)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,171
Gross Amount at Which Carried at Close of Period , Land	3,564
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,628
Gross Amount at Which Carried at Close of Period, Total	11,192
Accumulated Depreciation	$ (133)
Date Acquired	2015-07
Westfield Galleria at Roseville - Roseville, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,848
Acquisition Costs, Buildings and Improvements	3,215
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,078
Gross Amount at Which Carried at Close of Period , Land	4,848
Gross Amount at Which Carried at Close of Period, Building and Improvements	12,293
Gross Amount at Which Carried at Close of Period, Total	17,141
Accumulated Depreciation	$ (995)
Date Acquired	2015-07
Westfield Solano - Fairfield, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,679
Acquisition Costs, Buildings and Improvements	1,366
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,348
Gross Amount at Which Carried at Close of Period , Land	3,679
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,714
Gross Amount at Which Carried at Close of Period, Total	7,393
Accumulated Depreciation	$ (587)
Date Acquired	2015-07
Boise Towne Center - Boise, ID [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,828
Acquisition Costs, Buildings and Improvements	1,848
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,828
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,848
Gross Amount at Which Carried at Close of Period, Total	3,676
Accumulated Depreciation	$ (641)
Date Acquired	2015-07
Valley Plaza - No Hollywood, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 8,049
Acquisition Costs, Buildings and Improvements	3,172
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	18,546
Gross Amount at Which Carried at Close of Period , Land	8,049
Gross Amount at Which Carried at Close of Period, Building and Improvements	21,718
Gross Amount at Which Carried at Close of Period, Total	29,767
Accumulated Depreciation	$ (1,302)
Date Acquired	2015-07
Stand-Alone Location One - Memphis/Poplar, TN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,827
Acquisition Costs, Buildings and Improvements	2,475
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	24,740
Gross Amount at Which Carried at Close of Period , Land	2,827
Gross Amount at Which Carried at Close of Period, Building and Improvements	27,215
Gross Amount at Which Carried at Close of Period, Total	30,042
Accumulated Depreciation	$ (2,301)
Date Acquired	2015-07
Asheville Mall - Asheville, NC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,141
Acquisition Costs, Buildings and Improvements	2,036
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(750)
Gross Amount at Which Carried at Close of Period , Land	4,141
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,286
Gross Amount at Which Carried at Close of Period, Total	5,427
Accumulated Depreciation	$ (193)
Date Acquired	2015-07
Stand-Alone Location Two - Westwood, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,899
Acquisition Costs, Buildings and Improvements	1,748
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(427)
Gross Amount at Which Carried at Close of Period , Land	2,899
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,321
Gross Amount at Which Carried at Close of Period, Total	4,220
Accumulated Depreciation	$ (180)
Date Acquired	2015-07
Westfield West Covina - West Covina, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,972
Acquisition Costs, Buildings and Improvements	2,053
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(648)
Gross Amount at Which Carried at Close of Period , Land	5,972
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,405
Gross Amount at Which Carried at Close of Period, Total	7,377
Accumulated Depreciation	$ (218)
Date Acquired	2015-07
Crystal Mall - Waterford, CT [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,371
Acquisition Costs, Buildings and Improvements	2,534
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,371
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,534
Gross Amount at Which Carried at Close of Period, Total	3,905
Accumulated Depreciation	$ (881)
Date Acquired	2015-07
Stand-Alone Location - Hicksville, NYC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 38,625
Acquisition Costs, Buildings and Improvements	19,066
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(888)
Gross Amount at Which Carried at Close of Period , Land	38,625
Gross Amount at Which Carried at Close of Period, Building and Improvements	18,178
Gross Amount at Which Carried at Close of Period, Total	56,803
Accumulated Depreciation	$ (2,821)
Date Acquired	2015-07
North Riverside Park Mall - North Riverside, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,846
Acquisition Costs, Buildings and Improvements	3,178
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,822
Gross Amount at Which Carried at Close of Period , Land	1,846
Gross Amount at Which Carried at Close of Period, Building and Improvements	16,000
Gross Amount at Which Carried at Close of Period, Total	17,846
Accumulated Depreciation	$ (1,589)
Date Acquired	2015-07
McCain Mall - North Little Rock, AR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,288
Acquisition Costs, Buildings and Improvements	2,881
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,016
Gross Amount at Which Carried at Close of Period , Land	1,288
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,897
Gross Amount at Which Carried at Close of Period, Total	6,185
Accumulated Depreciation	$ (399)
Date Acquired	2015-07
Manchester Center - Fresno, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,370
Acquisition Costs, Buildings and Improvements	2,000
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(920)
Gross Amount at Which Carried at Close of Period , Land	1,370
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,080
Gross Amount at Which Carried at Close of Period, Total	2,450
Accumulated Depreciation	$ (168)
Date Acquired	2015-07
Stand-Alone Location - Watchung, NYC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,704
Acquisition Costs, Buildings and Improvements	4,110
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	28,437
Gross Amount at Which Carried at Close of Period , Land	6,704
Gross Amount at Which Carried at Close of Period, Building and Improvements	32,547
Gross Amount at Which Carried at Close of Period, Total	39,251
Accumulated Depreciation	$ (593)
Date Acquired	2015-07
Westgate Village Shopping Center - Toledo, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,664
Acquisition Costs, Buildings and Improvements	1,289
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	17
Gross Amount at Which Carried at Close of Period , Land	1,664
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,306
Gross Amount at Which Carried at Close of Period, Total	2,970
Accumulated Depreciation	$ (669)
Date Acquired	2015-07
Orlando Fashion Square - Orlando Colonial, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,403
Acquisition Costs, Buildings and Improvements	3,626
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	16,046
Gross Amount at Which Carried at Close of Period , Land	4,403
Gross Amount at Which Carried at Close of Period, Building and Improvements	19,672
Gross Amount at Which Carried at Close of Period, Total	24,075
Accumulated Depreciation	$ (572)
Date Acquired	2015-07
Stand-Alone Location Two - Riverside, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,397
Acquisition Costs, Buildings and Improvements	4,407
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,136)
Gross Amount at Which Carried at Close of Period , Land	4,397
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,271
Gross Amount at Which Carried at Close of Period, Total	7,668
Accumulated Depreciation	$ (508)
Date Acquired	2015-07
Baybrook Mall - Friendswd/Baybrk, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,124
Acquisition Costs, Buildings and Improvements	2,038
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2
Gross Amount at Which Carried at Close of Period , Land	6,124
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,040
Gross Amount at Which Carried at Close of Period, Total	8,164
Accumulated Depreciation	$ (905)
Date Acquired	2015-07
Pembroke Mall - Virginia Beach, VA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 10,413
Acquisition Costs, Buildings and Improvements	4,760
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,972
Gross Amount at Which Carried at Close of Period , Land	10,413
Gross Amount at Which Carried at Close of Period, Building and Improvements	18,732
Gross Amount at Which Carried at Close of Period, Total	29,145
Accumulated Depreciation	$ (3,477)
Date Acquired	2015-07
Ingram Park Mall - Ingram, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,651
Acquisition Costs, Buildings and Improvements	2,560
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	4,651
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,560
Gross Amount at Which Carried at Close of Period, Total	7,211
Accumulated Depreciation	$ (887)
Date Acquired	2015-07
Mall of Acadiana - Lafayette, LA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,406
Acquisition Costs, Buildings and Improvements	5,094
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,406
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,094
Gross Amount at Which Carried at Close of Period, Total	6,500
Accumulated Depreciation	$ (1,508)
Date Acquired	2015-07
Landmark Mall - Alexandria, VA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,728
Acquisition Costs, Buildings and Improvements	3,294
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(738)
Gross Amount at Which Carried at Close of Period , Land	3,728
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,556
Gross Amount at Which Carried at Close of Period, Total	6,284
Accumulated Depreciation	$ (383)
Date Acquired	2015-07
Stand-Alone Location One - Chicago, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,665
Acquisition Costs, Buildings and Improvements	3,504
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	3,665
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,504
Gross Amount at Which Carried at Close of Period, Total	7,169
Accumulated Depreciation	$ (580)
Date Acquired	2015-07
Tyrone Square Mall - Tyrone Square Mall [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,381
Acquisition Costs, Buildings and Improvements	2,420
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	23,002
Gross Amount at Which Carried at Close of Period , Land	2,381
Gross Amount at Which Carried at Close of Period, Building and Improvements	25,422
Gross Amount at Which Carried at Close of Period, Total	27,803
Accumulated Depreciation	$ (2,209)
Date Acquired	2015-07
Oglethorpe Mall - Savannah, GA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,285
Acquisition Costs, Buildings and Improvements	3,012
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(344)
Gross Amount at Which Carried at Close of Period , Land	5,285
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,668
Gross Amount at Which Carried at Close of Period, Total	7,953
Accumulated Depreciation	$ (343)
Date Acquired	2015-07
Pheasant Lane Mall - Nashua, NH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,794
Acquisition Costs, Buildings and Improvements	7,255
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,794
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,255
Gross Amount at Which Carried at Close of Period, Total	9,049
Accumulated Depreciation	$ (1,082)
Date Acquired	2015-07
Northwoods Mall - Chrlstn/Northwoods, SC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,576
Acquisition Costs, Buildings and Improvements	1,497
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	10,143
Gross Amount at Which Carried at Close of Period , Land	3,576
Gross Amount at Which Carried at Close of Period, Building and Improvements	11,640
Gross Amount at Which Carried at Close of Period, Total	15,216
Accumulated Depreciation	$ (621)
Date Acquired	2015-07
Park Place - Park Mall, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,207
Acquisition Costs, Buildings and Improvements	3,458
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	567
Gross Amount at Which Carried at Close of Period , Land	5,207
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,025
Gross Amount at Which Carried at Close of Period, Total	9,232
Accumulated Depreciation	$ (421)
Date Acquired	2015-07
Westfield Hialeah - Hialeah/Westland, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 9,683
Acquisition Costs, Buildings and Improvements	3,472
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,506
Gross Amount at Which Carried at Close of Period , Land	9,683
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,978
Gross Amount at Which Carried at Close of Period, Total	14,661
Accumulated Depreciation	$ (1,368)
Date Acquired	2015-07
Lincoln Park Shopping Center - Lincoln Park, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,106
Acquisition Costs, Buildings and Improvements	3,198
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(493)
Gross Amount at Which Carried at Close of Period , Land	1,106
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,705
Gross Amount at Which Carried at Close of Period, Total	3,811
Accumulated Depreciation	$ (420)
Date Acquired	2015-07
Chula Vista Center - Chula Vista, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,315
Acquisition Costs, Buildings and Improvements	6,834
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(902)
Gross Amount at Which Carried at Close of Period , Land	7,315
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,932
Gross Amount at Which Carried at Close of Period, Total	13,247
Accumulated Depreciation	$ (921)
Date Acquired	2015-07
Southland Mall - Miami/Cutler Rdg, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,219
Acquisition Costs, Buildings and Improvements	1,236
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(206)
Gross Amount at Which Carried at Close of Period , Land	5,219
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,030
Gross Amount at Which Carried at Close of Period, Total	6,249
Accumulated Depreciation	$ (155)
Date Acquired	2015-07
Inland Center - San Bernardino, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,131
Acquisition Costs, Buildings and Improvements	2,066
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(780)
Gross Amount at Which Carried at Close of Period , Land	4,131
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,286
Gross Amount at Which Carried at Close of Period, Total	5,417
Accumulated Depreciation	$ (193)
Date Acquired	2015-07
Florin Mall - Florin, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,022
Acquisition Costs, Buildings and Improvements	1,366
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(293)
Gross Amount at Which Carried at Close of Period , Land	1,022
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,073
Gross Amount at Which Carried at Close of Period, Total	2,095
Accumulated Depreciation	$ (161)
Date Acquired	2015-07
Westfield Belden Village - Canton, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,650
Acquisition Costs, Buildings and Improvements	5,854
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,894
Gross Amount at Which Carried at Close of Period , Land	1,650
Gross Amount at Which Carried at Close of Period, Building and Improvements	10,748
Gross Amount at Which Carried at Close of Period, Total	12,398
Accumulated Depreciation	$ (722)
Date Acquired	2015-07
Westfield Countryside - Clearwater/Cntrysd, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,852
Acquisition Costs, Buildings and Improvements	17,777
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	834
Gross Amount at Which Carried at Close of Period , Land	5,852
Gross Amount at Which Carried at Close of Period, Building and Improvements	18,611
Gross Amount at Which Carried at Close of Period, Total	24,463
Accumulated Depreciation	$ (3,560)
Date Acquired	2015-07
Southland Shopping Center - Middleburg Hts, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 698
Acquisition Costs, Buildings and Improvements	1,547
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(322)
Gross Amount at Which Carried at Close of Period , Land	698
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,225
Gross Amount at Which Carried at Close of Period, Total	1,923
Accumulated Depreciation	$ (190)
Date Acquired	2015-07
Westfield Parkway - El Cajon, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 10,573
Acquisition Costs, Buildings and Improvements	2,883
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,709
Gross Amount at Which Carried at Close of Period , Land	10,573
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,592
Gross Amount at Which Carried at Close of Period, Total	15,165
Accumulated Depreciation	$ (288)
Date Acquired	2015-07
Macomb Mall - Roseville, MI [Mmeber]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,286
Acquisition Costs, Buildings and Improvements	4,778
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,557
Gross Amount at Which Carried at Close of Period , Land	3,286
Gross Amount at Which Carried at Close of Period, Building and Improvements	16,335
Gross Amount at Which Carried at Close of Period, Total	19,621
Accumulated Depreciation	$ (2,583)
Date Acquired	2015-07
Stand-Alone Location - Middletown, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,647
Acquisition Costs, Buildings and Improvements	2,941
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,041)
Gross Amount at Which Carried at Close of Period , Land	5,647
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,900
Gross Amount at Which Carried at Close of Period, Total	7,547
Accumulated Depreciation	$ (279)
Date Acquired	2015-07
Shops at Tanforan - San Bruno, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,854
Acquisition Costs, Buildings and Improvements	4,642
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(977)
Gross Amount at Which Carried at Close of Period , Land	7,854
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,665
Gross Amount at Which Carried at Close of Period, Total	11,519
Accumulated Depreciation	$ (550)
Date Acquired	2015-07
Eastridge Mall - San Jose-Eastridge, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,531
Acquisition Costs, Buildings and Improvements	2,356
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(805)
Gross Amount at Which Carried at Close of Period , Land	1,531
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,551
Gross Amount at Which Carried at Close of Period, Total	3,082
Accumulated Depreciation	$ (233)
Date Acquired	2015-07
Oakland Mall - Troy, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,954
Acquisition Costs, Buildings and Improvements	2,651
Costs Capitalized Subsequent to Acquisition, Land	(815)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,719
Gross Amount at Which Carried at Close of Period , Land	7,139
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,370
Gross Amount at Which Carried at Close of Period, Total	15,509
Accumulated Depreciation	$ (1,263)
Date Acquired	2015-07
Edison Mall - Ft Myers, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,168
Acquisition Costs, Buildings and Improvements	2,853
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(418)
Gross Amount at Which Carried at Close of Period , Land	3,168
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,435
Gross Amount at Which Carried at Close of Period, Total	5,603
Accumulated Depreciation	$ (378)
Date Acquired	2015-07
Westfield Broward - Plantation, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,933
Acquisition Costs, Buildings and Improvements	2,509
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(823)
Gross Amount at Which Carried at Close of Period , Land	6,933
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,686
Gross Amount at Which Carried at Close of Period, Total	8,619
Accumulated Depreciation	$ (245)
Date Acquired	2015-07
Sunrise Mall - Citrus Hts-Sunrise, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,778
Acquisition Costs, Buildings and Improvements	2,088
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(775)
Gross Amount at Which Carried at Close of Period , Land	3,778
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,313
Gross Amount at Which Carried at Close of Period, Total	5,091
Accumulated Depreciation	$ (197)
Date Acquired	2015-07
Southbay Pavilion - Carson, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 11,476
Acquisition Costs, Buildings and Improvements	5,223
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	17,835
Gross Amount at Which Carried at Close of Period , Land	11,476
Gross Amount at Which Carried at Close of Period, Building and Improvements	23,058
Gross Amount at Which Carried at Close of Period, Total	34,534
Accumulated Depreciation	$ (1,852)
Date Acquired	2015-07
Westminster Mall - Westminster, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,845
Acquisition Costs, Buildings and Improvements	5,651
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	6,845
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,651
Gross Amount at Which Carried at Close of Period, Total	12,496
Accumulated Depreciation	$ (1,615)
Date Acquired	2015-07
Greenbrier Mall - Chspk/Greenbrier, VA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,236
Acquisition Costs, Buildings and Improvements	1,700
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(482)
Gross Amount at Which Carried at Close of Period , Land	4,236
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,218
Gross Amount at Which Carried at Close of Period, Total	5,454
Accumulated Depreciation	$ (177)
Date Acquired	2015-07
Westfield Sarasota - Sarasota, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,920
Acquisition Costs, Buildings and Improvements	2,200
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	3,920
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,200
Gross Amount at Which Carried at Close of Period, Total	6,120
Accumulated Depreciation	$ (947)
Date Acquired	2015-07
Town Center at Boca Raton - Boca Raton, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 16,089
Acquisition Costs, Buildings and Improvements	7,480
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(515)
Gross Amount at Which Carried at Close of Period , Land	16,089
Gross Amount at Which Carried at Close of Period, Building and Improvements	6,965
Gross Amount at Which Carried at Close of Period, Total	23,054
Accumulated Depreciation	$ (1,011)
Date Acquired	2015-07
Aventura Mall - Miami, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 13,264
Acquisition Costs, Buildings and Improvements	61,577
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(61,520)
Gross Amount at Which Carried at Close of Period , Land	13,264
Gross Amount at Which Carried at Close of Period, Building and Improvements	57
Gross Amount at Which Carried at Close of Period, Total	13,321
Accumulated Depreciation	$ (52)
Date Acquired	2015-07
Meadows Mall - Las Vegas(Meadows), NV [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,354
Acquisition Costs, Buildings and Improvements	1,879
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,777
Gross Amount at Which Carried at Close of Period , Land	3,354
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,656
Gross Amount at Which Carried at Close of Period, Total	8,010
Accumulated Depreciation	$ (219)
Date Acquired	2015-07
Northridge Center - Salinas, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,644
Acquisition Costs, Buildings and Improvements	4,394
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,644
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,394
Gross Amount at Which Carried at Close of Period, Total	7,038
Accumulated Depreciation	$ (1,233)
Date Acquired	2015-07
Newpark Mall - Newark, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,312
Acquisition Costs, Buildings and Improvements	3,268
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(660)
Gross Amount at Which Carried at Close of Period , Land	4,312
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,608
Gross Amount at Which Carried at Close of Period, Total	6,920
Accumulated Depreciation	$ (379)
Date Acquired	2015-07
Desert Sky Mall - Phoenix-Desert Sky, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,605
Acquisition Costs, Buildings and Improvements	2,448
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,605
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,448
Gross Amount at Which Carried at Close of Period, Total	5,053
Accumulated Depreciation	$ (860)
Date Acquired	2015-07
Great Northern Mall - Clay, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 787
Acquisition Costs, Buildings and Improvements	4,134
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	787
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,134
Gross Amount at Which Carried at Close of Period, Total	4,921
Accumulated Depreciation	$ (1,081)
Date Acquired	2015-07
Miami International Mall - Doral(Miami), FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 9,214
Acquisition Costs, Buildings and Improvements	2,654
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(600)
Gross Amount at Which Carried at Close of Period , Land	9,214
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,054
Gross Amount at Which Carried at Close of Period, Total	11,268
Accumulated Depreciation	$ (298)
Date Acquired	2015-07
Louis Joliet Mall - Joliet, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,557
Acquisition Costs, Buildings and Improvements	3,108
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,557
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,108
Gross Amount at Which Carried at Close of Period, Total	5,665
Accumulated Depreciation	$ (1,488)
Date Acquired	2015-07
Huntington Square Mall - East Northport, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 7,617
Acquisition Costs, Buildings and Improvements	2,065
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	20,351
Gross Amount at Which Carried at Close of Period , Land	7,617
Gross Amount at Which Carried at Close of Period, Building and Improvements	22,416
Gross Amount at Which Carried at Close of Period, Total	30,033
Accumulated Depreciation	$ (477)
Date Acquired	2015-07
Montclair Plaza - Montclair, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,498
Acquisition Costs, Buildings and Improvements	2,119
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,498
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,119
Gross Amount at Which Carried at Close of Period, Total	4,617
Accumulated Depreciation	$ (420)
Date Acquired	2015-07
Orland Square - Orland Park, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,783
Acquisition Costs, Buildings and Improvements	974
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(380)
Gross Amount at Which Carried at Close of Period , Land	1,783
Gross Amount at Which Carried at Close of Period, Building and Improvements	594
Gross Amount at Which Carried at Close of Period, Total	2,377
Accumulated Depreciation	$ (86)
Date Acquired	2015-07
Greece Ridge Center - Rochester-Greece, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,082
Acquisition Costs, Buildings and Improvements	1,560
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(380)
Gross Amount at Which Carried at Close of Period , Land	3,082
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,180
Gross Amount at Which Carried at Close of Period, Total	4,262
Accumulated Depreciation	$ (171)
Date Acquired	2015-07
Fair Oaks Mall - Fairfax, VA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 10,873
Acquisition Costs, Buildings and Improvements	1,491
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,643
Gross Amount at Which Carried at Close of Period , Land	10,873
Gross Amount at Which Carried at Close of Period, Building and Improvements	15,134
Gross Amount at Which Carried at Close of Period, Total	26,007
Accumulated Depreciation	$ (589)
Date Acquired	2015-07
Glenbrook Square - Ft Wayne, IN [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,247
Acquisition Costs, Buildings and Improvements	5,476
Costs Capitalized Subsequent to Acquisition, Land	(796)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(3,382)
Gross Amount at Which Carried at Close of Period , Land	2,451
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,094
Gross Amount at Which Carried at Close of Period, Total	4,545
Accumulated Depreciation	$ (6)
Date Acquired	2015-07
Eastview Mal - Victor, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,144
Acquisition Costs, Buildings and Improvements	1,391
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(397)
Gross Amount at Which Carried at Close of Period , Land	4,144
Gross Amount at Which Carried at Close of Period, Building and Improvements	994
Gross Amount at Which Carried at Close of Period, Total	5,138
Accumulated Depreciation	$ (149)
Date Acquired	2015-07
Tech Ridge - Austin, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,164
Acquisition Costs, Buildings and Improvements	2,858
Costs Capitalized Subsequent to Acquisition, Land	(1,453)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,368
Gross Amount at Which Carried at Close of Period , Land	1,711
Gross Amount at Which Carried at Close of Period, Building and Improvements	18,226
Gross Amount at Which Carried at Close of Period, Total	19,937
Accumulated Depreciation	$ (976)
Date Acquired	2015-07
Moreno Valley Mall at Towngate - Moreno Vly, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,898
Acquisition Costs, Buildings and Improvements	3,407
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(751)
Gross Amount at Which Carried at Close of Period , Land	3,898
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,656
Gross Amount at Which Carried at Close of Period, Total	6,554
Accumulated Depreciation	$ (362)
Date Acquired	2015-07
Jefferson Valley Mall - Yorktown Hts, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,584
Acquisition Costs, Buildings and Improvements	1,569
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(529)
Gross Amount at Which Carried at Close of Period , Land	3,584
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,040
Gross Amount at Which Carried at Close of Period, Total	4,624
Accumulated Depreciation	$ (149)
Date Acquired	2015-07
Jordan Landing Shopping Center - West Jordan, UT [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,190
Acquisition Costs, Buildings and Improvements	2,305
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,471
Gross Amount at Which Carried at Close of Period , Land	3,190
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,776
Gross Amount at Which Carried at Close of Period, Total	11,966
Accumulated Depreciation	$ (1,645)
Date Acquired	2015-07
Chapel Hill Mall - Chapel Hill, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 444
Acquisition Costs, Buildings and Improvements	1,460
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(819)
Gross Amount at Which Carried at Close of Period , Land	444
Gross Amount at Which Carried at Close of Period, Building and Improvements	641
Gross Amount at Which Carried at Close of Period, Total	1,085
Accumulated Depreciation	$ (96)
Date Acquired	2015-07
Plaza Carolina Mall - Carolina, PR [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 611
Acquisition Costs, Buildings and Improvements	8,640
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	611
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,640
Gross Amount at Which Carried at Close of Period, Total	9,251
Accumulated Depreciation	$ (1,726)
Date Acquired	2015-07
Dayton Mall - Dayton Mall, OH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,650
Acquisition Costs, Buildings and Improvements	1,223
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,360
Gross Amount at Which Carried at Close of Period , Land	2,650
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,583
Gross Amount at Which Carried at Close of Period, Total	6,233
Accumulated Depreciation	$ (273)
Date Acquired	2015-07
Lakeland Square - Lakeland, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,503
Acquisition Costs, Buildings and Improvements	1,045
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(378)
Gross Amount at Which Carried at Close of Period , Land	1,503
Gross Amount at Which Carried at Close of Period, Building and Improvements	667
Gross Amount at Which Carried at Close of Period, Total	2,170
Accumulated Depreciation	$ (91)
Date Acquired	2015-07
Stand-Alone Location - Melbourne, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,441
Acquisition Costs, Buildings and Improvements	1,981
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(650)
Gross Amount at Which Carried at Close of Period , Land	2,441
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,331
Gross Amount at Which Carried at Close of Period, Total	3,772
Accumulated Depreciation	$ (200)
Date Acquired	2015-07
Westfield Palm Desert - Palm Desert, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 5,473
Acquisition Costs, Buildings and Improvements	1,705
Costs Capitalized Subsequent to Acquisition, Land	(542)
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(167)
Gross Amount at Which Carried at Close of Period , Land	4,931
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,538
Gross Amount at Which Carried at Close of Period, Total	6,469
Accumulated Depreciation	$ (610)
Date Acquired	2015-07
Stand-Alone Location - Phoenix , AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 568
Acquisition Costs, Buildings and Improvements	1,088
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13
Gross Amount at Which Carried at Close of Period , Land	568
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,101
Gross Amount at Which Carried at Close of Period, Total	1,669
Accumulated Depreciation	$ (632)
Date Acquired	2015-07
Meadowood Mall - Reno, NV [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,135
Acquisition Costs, Buildings and Improvements	5,748
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,039
Gross Amount at Which Carried at Close of Period , Land	2,135
Gross Amount at Which Carried at Close of Period, Building and Improvements	6,787
Gross Amount at Which Carried at Close of Period, Total	8,922
Accumulated Depreciation	$ (896)
Date Acquired	2015-07
Imperial Valley Mall - El Centro, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,877
Acquisition Costs, Buildings and Improvements	3,977
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	3,877
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,977
Gross Amount at Which Carried at Close of Period, Total	7,854
Accumulated Depreciation	$ (1,205)
Date Acquired	2015-07
Bowie Town Center - Bowie, MD [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 4,583
Acquisition Costs, Buildings and Improvements	2,335
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,560
Gross Amount at Which Carried at Close of Period , Land	4,583
Gross Amount at Which Carried at Close of Period, Building and Improvements	3,895
Gross Amount at Which Carried at Close of Period, Total	8,478
Accumulated Depreciation	$ (1,030)
Date Acquired	2015-07
Mall at Sierra Vista - Sierra Vista, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,252
Acquisition Costs, Buildings and Improvements	1,791
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	1,252
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,791
Gross Amount at Which Carried at Close of Period, Total	3,043
Accumulated Depreciation	$ (525)
Date Acquired	2015-07
Stand-Alone Location - Lombard, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,685
Acquisition Costs, Buildings and Improvements	8,281
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	2,685
Gross Amount at Which Carried at Close of Period, Building and Improvements	8,281
Gross Amount at Which Carried at Close of Period, Total	10,966
Accumulated Depreciation	$ (1,379)
Date Acquired	2015-07
Southgate Mall - Yuma, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,485
Acquisition Costs, Buildings and Improvements	1,596
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(401)
Gross Amount at Which Carried at Close of Period , Land	1,485
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,195
Gross Amount at Which Carried at Close of Period, Total	2,680
Accumulated Depreciation	$ (179)
Date Acquired	2015-07
Town Center Mall 81 - Santa Maria, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,967
Acquisition Costs, Buildings and Improvements	2,635
Costs Capitalized Subsequent to Acquisition, Land	0
Gross Amount at Which Carried at Close of Period , Land	3,967
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,635
Gross Amount at Which Carried at Close of Period, Total	6,602
Accumulated Depreciation	$ (638)
Date Acquired	2015-07
Stand-Alone Location - Ypsilanti, MI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,462
Acquisition Costs, Buildings and Improvements	1,277
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(515)
Gross Amount at Which Carried at Close of Period , Land	2,462
Gross Amount at Which Carried at Close of Period, Building and Improvements	762
Gross Amount at Which Carried at Close of Period, Total	3,224
Accumulated Depreciation	$ (119)
Date Acquired	2015-07
Stand-Alone Location - Houston, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 6,114
Acquisition Costs, Buildings and Improvements	1,515
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(525)
Gross Amount at Which Carried at Close of Period , Land	6,114
Gross Amount at Which Carried at Close of Period, Building and Improvements	990
Gross Amount at Which Carried at Close of Period, Total	7,104
Accumulated Depreciation	$ (132)
Date Acquired	2015-07
Kentucky Oaks Mall - Paducah, KY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,022
Acquisition Costs, Buildings and Improvements	2,868
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,151
Gross Amount at Which Carried at Close of Period , Land	1,022
Gross Amount at Which Carried at Close of Period, Building and Improvements	12,019
Gross Amount at Which Carried at Close of Period, Total	13,041
Accumulated Depreciation	$ (1,037)
Date Acquired	2015-07
Lindale Mall - Cedar Rapids, IA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,833
Acquisition Costs, Buildings and Improvements	2,197
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(457)
Gross Amount at Which Carried at Close of Period , Land	2,833
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,740
Gross Amount at Which Carried at Close of Period, Total	4,573
Accumulated Depreciation	$ (245)
Date Acquired	2015-07
Prescott Gateway - Prescott, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,071
Acquisition Costs, Buildings and Improvements	835
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(305)
Gross Amount at Which Carried at Close of Period , Land	1,071
Gross Amount at Which Carried at Close of Period, Building and Improvements	530
Gross Amount at Which Carried at Close of Period, Total	1,601
Accumulated Depreciation	$ (68)
Date Acquired	2015-07
King of Prussia - King of Prussia, PA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Buildings and Improvements	$ 42,300
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,982
Gross Amount at Which Carried at Close of Period, Building and Improvements	45,282
Gross Amount at Which Carried at Close of Period, Total	45,282
Accumulated Depreciation	$ (7,048)
Date Acquired	2015-07
Merced Mall - Merced Mall [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 2,534
Acquisition Costs, Buildings and Improvements	1,604
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(634)
Gross Amount at Which Carried at Close of Period , Land	2,534
Gross Amount at Which Carried at Close of Period, Building and Improvements	970
Gross Amount at Which Carried at Close of Period, Total	3,504
Accumulated Depreciation	$ (146)
Date Acquired	2015-07
Janss Marketplace - Thousand Oaks, CA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 9,853
Acquisition Costs, Buildings and Improvements	14,785
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,102
Gross Amount at Which Carried at Close of Period , Land	9,853
Gross Amount at Which Carried at Close of Period, Building and Improvements	21,887
Gross Amount at Which Carried at Close of Period, Total	31,740
Accumulated Depreciation	$ (3,722)
Date Acquired	2015-07
West Towne Mall - Madison-West, WI [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,053
Acquisition Costs, Buildings and Improvements	2,130
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,789
Gross Amount at Which Carried at Close of Period , Land	3,053
Gross Amount at Which Carried at Close of Period, Building and Improvements	16,919
Gross Amount at Which Carried at Close of Period, Total	19,972
Accumulated Depreciation	$ (1,011)
Date Acquired	2015-07
The Mall of New Hampshire - Manchester, NH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,458
Acquisition Costs, Buildings and Improvements	4,160
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,557
Gross Amount at Which Carried at Close of Period , Land	1,458
Gross Amount at Which Carried at Close of Period, Building and Improvements	7,717
Gross Amount at Which Carried at Close of Period, Total	9,175
Accumulated Depreciation	$ (1,086)
Date Acquired	2015-07
Warrenton Village - Warrenton, VA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,956
Acquisition Costs, Buildings and Improvements	2,480
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,731
Gross Amount at Which Carried at Close of Period , Land	1,956
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,211
Gross Amount at Which Carried at Close of Period, Total	6,167
Accumulated Depreciation	$ (713)
Date Acquired	2015-07
Fox Run Mall - Portsmouth, NH [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,934
Acquisition Costs, Buildings and Improvements	3,375
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(739)
Gross Amount at Which Carried at Close of Period , Land	3,934
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,636
Gross Amount at Which Carried at Close of Period, Total	6,570
Accumulated Depreciation	$ (383)
Date Acquired	2015-07
Panama City Mall - Panama City, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,227
Acquisition Costs, Buildings and Improvements	1,614
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(461)
Gross Amount at Which Carried at Close of Period , Land	3,227
Gross Amount at Which Carried at Close of Period, Building and Improvements	1,153
Gross Amount at Which Carried at Close of Period, Total	4,380
Accumulated Depreciation	$ (167)
Date Acquired	2015-07
Shopping Center - Peoria, AZ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,204
Acquisition Costs, Buildings and Improvements	509
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	219
Gross Amount at Which Carried at Close of Period , Land	1,204
Gross Amount at Which Carried at Close of Period, Building and Improvements	728
Gross Amount at Which Carried at Close of Period, Total	1,932
Accumulated Depreciation	$ (44)
Date Acquired	2015-07
Kmart Shopping Center - Orange Park, FL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 1,477
Acquisition Costs, Buildings and Improvements	1,701
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	462
Gross Amount at Which Carried at Close of Period , Land	1,477
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,163
Gross Amount at Which Carried at Close of Period, Total	3,640
Accumulated Depreciation	$ (795)
Date Acquired	2015-07
Homewood Square - Homewood, IL [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,954
Acquisition Costs, Buildings and Improvements	4,766
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	36
Gross Amount at Which Carried at Close of Period , Land	3,954
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,802
Gross Amount at Which Carried at Close of Period, Total	8,756
Accumulated Depreciation	$ (1,463)
Date Acquired	2015-07
Kickapoo Corners - Springfield, MO [Mwember]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 922
Acquisition Costs, Buildings and Improvements	2,050
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	47
Gross Amount at Which Carried at Close of Period , Land	922
Gross Amount at Which Carried at Close of Period, Building and Improvements	2,097
Gross Amount at Which Carried at Close of Period, Total	3,019
Accumulated Depreciation	$ (611)
Date Acquired	2015-07
Landmark Center - Greensboro, NC [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	$ 3,869
Acquisition Costs, Buildings and Improvements	4,387
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	423
Gross Amount at Which Carried at Close of Period , Land	3,869
Gross Amount at Which Carried at Close of Period, Building and Improvements	4,810
Gross Amount at Which Carried at Close of Period, Total	8,679
Accumulated Depreciation	$ (887)
Date Acquired	2015-07
Construction in Progress [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Costs Capitalized Subsequent to Acquisition, Land	$ 0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	338,672
Gross Amount at Which Carried at Close of Period, Building and Improvements	338,672
Gross Amount at Which Carried at Close of Period, Total	338,672
Irving Mall - Irving, TX [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Acquisition Costs, Land	4,493
Acquisition Costs, Buildings and Improvements	5,743
Costs Capitalized Subsequent to Acquisition, Land	0
Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(722)
Gross Amount at Which Carried at Close of Period , Land	4,493
Gross Amount at Which Carried at Close of Period, Building and Improvements	5,021
Gross Amount at Which Carried at Close of Period, Total	9,514
Accumulated Depreciation	$ (753)
Date Acquired	2015-07

Schedule III - Real Estate an_3

Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail) $ in Billions	12 Months Ended
	Dec. 31, 2019USD ($)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Aggregate cost of land, building and improvements for federal income tax purpose	$ 2.5
Building [Member] | Minimum [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life upon Which Depreciation is Computed	25 years
Building [Member] | Maximum [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life upon Which Depreciation is Computed	40 years
Site Improvement [Member] | Minimum [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life upon Which Depreciation is Computed	5 years
Site Improvement [Member] | Maximum [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life upon Which Depreciation is Computed	15 years
Tenant Improvements [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life upon which depreciation is computed, description	shorter of the estimated useful life or non-cancelable term of lease

Schedule III - Reconciliation o

Schedule III - Reconciliation of Real Estate (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation Of Carrying Amount Of Real Estate Investments Roll Forward
Balance at beginning of period	$ 1,889,014,000	$ 1,854,043,000	$ 1,734,892,000
Additions	364,970,000	318,820,000	257,933,000
Impairments	0	0	0
Dispositions	(95,270,000)	(244,815,000)	(71,117,000)
Write-offs	(40,385,000)	(39,034,000)	(67,665,000)
Balance at end of period	$ 2,118,329,000	$ 1,889,014,000	$ 1,854,043,000

Schedule III - Reconciliation_2

Schedule III - Reconciliation of Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation Of Real Estate Accumulated Depreciation Roll Forward
Balance at beginning of period	$ 137,947	$ 139,483	$ 89,940
Depreciation expense	59,289	50,272	120,709
Dispositions	(9,174)	(12,772)	(3,501)
Write-offs	(40,366)	(39,036)	(67,665)
Balance at end of period	$ 147,696	$ 137,947	$ 139,483