Washington Prime (WPGGQ) 10-K 16 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 15, 2021	Jun. 30, 2020
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-36252
Entity Registrant Name	WASHINGTON PRIME GROUP INC.
Entity Incorporation, State or Country Code	IN
Entity Tax Identification Number	46-4323686
Entity Address, Address Line One	180 East Broad Street
Entity Address, City or Town	Columbus
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43215
City Area Code	614
Local Phone Number	621-9000
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 153.9
Entity Common Stock, Shares Outstanding		24,306,288
Documents Incorporated by Reference	Portions of Washington Prime Group Inc.'s Proxy Statement in connection with its 2021 Annual Meeting of Stockholders are incorporated by reference in Part III.
Entity Central Index Key	0001594686
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Stock, $0.0001 par value per share
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	WPG
Security Exchange Name	NYSE
7.5% Series H Cumulative Redeemable Preferred Stock, par value $0.0001 per share
Document Information [Line Items]
Title of 12(b) Security	7.5% Series H Cumulative Redeemable Preferred Stock, par value $0.0001 per share
Trading Symbol	WPGPRH
Security Exchange Name	NYSE
6.875% Series I Cumulative Redeemable Preferred Stock, par value $0.0001 per share
Document Information [Line Items]
Title of 12(b) Security	6.875% Series I Cumulative Redeemable Preferred Stock, par value $0.0001 per share
Trading Symbol	WPGPRI
Security Exchange Name	NYSE
Washington Prime Group, L.P.
Document Information [Line Items]
Current Fiscal Year End Date	--12-31
Entity File Number	333-205859
Entity Registrant Name	Washington Prime Group, L.P.
Entity Incorporation, State or Country Code	IN
Entity Tax Identification Number	46-4674640
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		432,414
Entity Central Index Key	0001610911

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS:
Investment properties at cost	$ 5,873,801	$ 5,902,406
Less: accumulated depreciation	2,539,745	2,397,736
Investment properties at cost, net	3,334,056	3,504,670
Cash and cash equivalents	92,618	41,421
Tenant receivables and accrued revenue, net	132,610	82,762
Investment in and advances to unconsolidated entities, at equity	416,339	417,092
Deferred costs and other assets	129,724	205,034
Total assets	4,105,347	4,250,979
LIABILITIES:
Mortgage notes payable	1,101,653	1,115,608
Notes payable	710,476	957,566
Term loans	681,563	686,642
Revolving credit facility	639,976	204,145
Other indebtedness	87,807	97,601
Accounts payable, accrued expenses, intangibles, and deferred revenues	276,086	260,904
Distributions payable	3,323	3,252
Cash distributions and losses in unconsolidated entities, at equity	0	15,421
Total liabilities	3,500,884	3,341,139
Redeemable noncontrolling interests	3,265	3,265
Stockholders' Equity:
Common stock, $0.0001 par value, 350,000,000 shares authorized; 20,999,596 and 20,764,920 issued and outstanding as of December 31, 2020 and 2019, respectively	2	2
Capital in excess of par value	1,262,524	1,254,788
Accumulated deficit	(913,128)	(655,492)
Accumulated other comprehensive loss	(12,124)	(5,525)
Total stockholders' equity	539,850	796,349
Noncontrolling interests	61,348	110,226
Total equity	601,198	906,575
Partners' Equity:
Total liabilities, redeemable noncontrolling interests and equity	4,105,347	4,250,979
Preferred Series H
Stockholders' Equity:
Cumulative redeemable preferred stock	104,251	104,251
Preferred Series I
Stockholders' Equity:
Cumulative redeemable preferred stock	98,325	98,325
Washington Prime Group, L.P.
ASSETS:
Investment properties at cost	5,873,801	5,902,406
Less: accumulated depreciation	2,539,745	2,397,736
Investment properties at cost, net	3,334,056	3,504,670
Cash and cash equivalents	92,618	41,421
Tenant receivables and accrued revenue, net	132,610	82,762
Investment in and advances to unconsolidated entities, at equity	416,339	417,092
Deferred costs and other assets	129,724	205,034
Total assets	4,105,347	4,250,979
LIABILITIES:
Mortgage notes payable	1,101,653	1,115,608
Notes payable	710,476	957,566
Term loans	681,563	686,642
Revolving credit facility	639,976	204,145
Other indebtedness	87,807	97,601
Accounts payable, accrued expenses, intangibles, and deferred revenues	276,086	260,904
Distributions payable	3,323	3,252
Cash distributions and losses in unconsolidated entities, at equity	0	15,421
Total liabilities	3,500,884	3,341,139
Redeemable noncontrolling interests	3,265	3,265
Partners' Equity:
General Partners' Capital Account	539,850	796,349
Limited partners, 3,828,590 and 3,853,662 units issued and outstanding as of December 31, 2020 and 2019, respectively	60,351	109,193
Total partners' equity	600,201	905,542
Noncontrolling interests	997	1,033
Total equity	601,198	906,575
Total liabilities, redeemable noncontrolling interests and equity	4,105,347	4,250,979
Washington Prime Group, L.P. | General Partner Preferred Equity
Partners' Equity:
General Partners' Capital Account	202,576	202,576
Washington Prime Group, L.P. | General Partner Common Equity
Partners' Equity:
General Partners' Capital Account	$ 337,274	$ 593,773

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	350,000,000	350,000,000
Common stock, issued (in shares)	20,999,596	20,764,920
Common stock, outstanding (in shares)	20,999,596	20,764,920
Washington Prime Group, L.P.
Limited Partners, common equity, shares issued (in shares)	3,828,590	3,853,662
Limited Partners, common equity, shares outstanding (in shares)	3,828,590	3,853,662
Washington Prime Group, L.P. | General Partner Preferred Equity
General Partner shares issued (in shares)	7,800,000	7,800,000
General Partner shares outstanding (in shares)	7,800,000	7,800,000
Washington Prime Group, L.P. | General Partner Common Equity
General Partner shares issued (in shares)	20,999,596	20,674,941
General Partner shares outstanding (in shares)	20,999,596	20,674,941
Preferred Series H
Preferred shares, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred shares, shares issued (in shares)	4,000,000	4,000,000
Preferred shares, shares outstanding (in shares)	4,000,000	4,000,000
Preferred Series I
Preferred shares, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred shares, shares issued (in shares)	3,800,000	3,800,000
Preferred shares, shares outstanding (in shares)	3,800,000	3,800,000

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
REVENUE:
Rental income	$ 506,682	$ 633,633	$ 690,432
Other income	17,736	27,851	27,047
Total revenues	524,418	661,484	717,479
EXPENSES:
Property operating	137,779	154,328	148,433
Depreciation and amortization	229,064	271,320	257,796
Real estate taxes	78,379	82,139	86,665
Advertising and promotion	7,333	9,513	9,070
General and administrative	48,119	51,187	39,090
Ground rent	778	837	789
Impairment loss	135,151	35,256	0
Total operating expenses	636,603	604,580	541,843
Interest expense, net	(156,752)	(153,382)	(141,987)
Impairment on note receivable	(11,237)	0	0
Gain on disposition of interests in properties, net	31,945	38,373	24,602
Gain on extinguishment of debt, net	0	63,660	51,395
Income and other taxes	1,098	(1,296)	(1,532)
(Loss) income from unconsolidated entities	(14,693)	(1,499)	541
Net (loss) income	(261,824)	2,760	108,655
Net (loss) income attributable to noncontrolling interests	(42,038)	(1,514)	15,051
NET (LOSS) INCOME ATTRIBUTABLE TO THE COMPANY	(219,786)	4,274	93,604
Less: Preferred share dividends	(14,032)	(14,032)	(14,032)
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	(233,818)	(9,758)	79,572
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS:
Limited partners	$ (42,341)	$ (1,799)	$ 14,735
(LOSS) EARNINGS PER COMMON SHARE, BASIC AND DILUTED (in dollars per share)	$ (11.04)	$ (0.47)	$ 3.81
COMPREHENSIVE (LOSS) INCOME:
Net (loss) income	$ (261,824)	$ 2,760	$ 108,655
Unrealized loss on interest rate derivative instruments	(7,817)	(14,102)	(1,284)
Comprehensive (loss) income	(269,641)	(11,342)	107,371
Comprehensive (loss) income attributable to noncontrolling interests	(43,256)	(3,691)	14,871
Comprehensive (loss) income attributable to common shareholders/unitholders	(226,385)	(7,651)	92,500
Washington Prime Group, L.P.
REVENUE:
Rental income	506,682	633,633	690,432
Other income	17,736	27,851	27,047
Total revenues	524,418	661,484	717,479
EXPENSES:
Property operating	137,779	154,328	148,433
Depreciation and amortization	229,064	271,320	257,796
Real estate taxes	78,379	82,139	86,665
Advertising and promotion	7,333	9,513	9,070
General and administrative	48,119	51,187	39,090
Ground rent	778	837	789
Impairment loss	135,151	35,256	0
Total operating expenses	636,603	604,580	541,843
Interest expense, net	(156,752)	(153,382)	(141,987)
Impairment on note receivable	(11,237)	0	0
Gain on disposition of interests in properties, net	31,945	38,373	24,602
Gain on extinguishment of debt, net	0	63,660	51,395
Income and other taxes	1,098	(1,296)	(1,532)
(Loss) income from unconsolidated entities	(14,693)	(1,499)	541
Net (loss) income	(261,824)	2,760	108,655
Net (loss) income attributable to noncontrolling interests	63	45	76
NET (LOSS) INCOME ATTRIBUTABLE TO UNITHOLDERS	(261,887)	2,715	108,579
Less: Preferred unit distributions	(14,272)	(14,272)	(14,272)
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS	(276,159)	(11,557)	94,307
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS:
General partner	(233,818)	(9,758)	79,572
Limited partners	(42,341)	(1,799)	14,735
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS	$ (276,159)	$ (11,557)	$ 94,307
(LOSS) EARNINGS PER COMMON SHARE, BASIC AND DILUTED (in dollars per share)	$ (11.04)	$ (0.47)	$ 3.81
COMPREHENSIVE (LOSS) INCOME:
Net (loss) income	$ (261,824)	$ 2,760	$ 108,655
Unrealized loss on interest rate derivative instruments	(7,817)	(14,102)	(1,284)
Comprehensive (loss) income	(269,641)	(11,342)	107,371
Comprehensive (loss) income attributable to noncontrolling interests	63	45	76
Comprehensive (loss) income attributable to common shareholders/unitholders	$ (269,704)	$ (11,387)	$ 107,295

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (261,824)	$ 2,760	$ 108,655
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including fair value rent, fair value debt, deferred financing costs and equity-based compensation	227,012	273,204	259,022
Gain on extinguishment of debt, net	0	(63,660)	(51,395)
Impairment on note receivable	11,237	0	0
Gain on disposition of interests in properties and outparcels, net	(31,945)	(38,373)	(24,602)
Impairment loss	135,151	35,256	0
Change in estimate of collectibility of rental income	57,734	7,538	5,826
Loss (income) from unconsolidated entities	14,693	1,499	(541)
Distributions of income from unconsolidated entities	1,956	3,045	8,619
Changes in assets and liabilities:
Tenant receivables and accrued revenue, net	(100,838)	(2,212)	327
Deferred costs and other assets	(3,591)	(4,542)	(23,087)
Accounts payable, accrued expenses, deferred revenues and other liabilities	29,062	(5,210)	4,421
Net cash provided by operating activities	78,647	209,305	287,245
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions, net of cash acquired	0	0	(80,108)
Capital expenditures, net	(181,097)	(176,737)	(153,850)
Net proceeds from disposition of interests in properties and outparcels	26,458	53,449	39,212
Investments in unconsolidated entities	(21,637)	(19,820)	(20,178)
Distributions of capital from unconsolidated entities	5,593	27,990	35,096
Net cash used in investing activities	(170,683)	(115,118)	(179,828)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interest holders in properties	(99)	(80)	(66)
Redemption of limited partner units/preferred shares	(543)	(276)	(28)
Net proceeds from issuance of common shares, including common stock plans	0	1	0
Distributions on common and preferred shares/units	(42,332)	(237,544)	(236,821)
Proceeds from issuance of debt, net of transaction costs	486,662	602,742	708,563
Repayments of debt	(293,867)	(444,639)	(588,182)
Other financing activities	(3,028)	0	0
Net cash provided by (used in) financing activities	146,793	(79,796)	(116,534)
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	54,757	14,391	(9,117)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of year	75,475	61,084	70,201
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of year	130,232	75,475	61,084
Washington Prime Group, L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	(261,824)	2,760	108,655
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including fair value rent, fair value debt, deferred financing costs and equity-based compensation	227,012	273,204	259,022
Gain on extinguishment of debt, net	0	(63,660)	(51,395)
Impairment on note receivable	11,237	0	0
Gain on disposition of interests in properties and outparcels, net	(31,945)	(38,373)	(24,602)
Impairment loss	135,151	35,256	0
Change in estimate of collectibility of rental income	57,734	7,538	5,826
Loss (income) from unconsolidated entities	14,693	1,499	(541)
Distributions of income from unconsolidated entities	1,956	3,045	8,619
Changes in assets and liabilities:
Tenant receivables and accrued revenue, net	(100,838)	(2,212)	327
Deferred costs and other assets	(3,591)	(4,542)	(23,087)
Accounts payable, accrued expenses, deferred revenues and other liabilities	29,062	(5,210)	4,421
Net cash provided by operating activities	78,647	209,305	287,245
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions, net of cash acquired	0	0	(80,108)
Capital expenditures, net	(181,097)	(176,737)	(153,850)
Net proceeds from disposition of interests in properties and outparcels	26,458	53,449	39,212
Investments in unconsolidated entities	(21,637)	(19,820)	(20,178)
Distributions of capital from unconsolidated entities	5,593	27,990	35,096
Net cash used in investing activities	(170,683)	(115,118)	(179,828)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interest holders in properties	(99)	(80)	(66)
Redemption of limited partner units/preferred shares	(543)	(276)	(28)
Net proceeds from issuance of common units, including equity-based compensation plans	0	1	0
Distributions to unitholders	(42,332)	(237,544)	(236,821)
Proceeds from issuance of debt, net of transaction costs	486,662	602,742	708,563
Repayments of debt	(293,867)	(444,639)	(588,182)
Other financing activities	(3,028)	0	0
Net cash provided by (used in) financing activities	146,793	(79,796)	(116,534)
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	54,757	14,391	(9,117)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of year	75,475	61,084	70,201
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of year	$ 130,232	$ 75,475	$ 61,084

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Total Stockholders' Equity	Total Stockholders' EquityCumulative Effect, Period of Adoption, Adjustment	Preferred StockPreferred Series H	Preferred StockPreferred Series I	Common Stock	Capital in Excess of Par Value	Capital in Excess of Par ValueCumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit	Accumulated DeficitCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) IncomeCumulative Effect, Period of Adoption, Adjustment	Non-Controlling Interests	Non-Controlling InterestsCumulative Effect, Period of Adoption, Adjustment	Redeemable Non-Controlling Interests
Balance at Dec. 31, 2017	$ 1,267,122	$ 2,474	$ 1,099,404	$ 2,085	$ 104,251	$ 98,325	$ 2	$ 1,240,500	$ (389)	$ (350,594)	$ 1,890	$ 6,920	$ 584	$ 167,718	$ 389	$ 3,265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of limited partner units	(28)													(28)
Other	(103)		(103)					(103)
Equity-based compensation	8,322		7,480					7,480						842
Adjustments to noncontrolling interests	0		168					168						(168)
Distributions on common units	(222,615)		(187,792)							(187,792)				(34,823)
Distributions declared on preferred shares	(14,032)		(14,032)							(14,032)
Other comprehensive loss	(1,284)		(1,104)									(1,104)		(180)
Net income (loss), excluding $240 of distributions to preferred unitholders	108,415		93,604							93,604				14,811
Balance at Dec. 31, 2018	1,148,271		999,710		104,251	98,325	2	1,247,656		(456,924)		6,400		148,561		3,265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options	1		1					1
Redemption of limited partner units	(276)													(276)
Other	(32)		(32)					(32)
Equity-based compensation	7,837		7,800					7,800						37
Adjustments to noncontrolling interests	0		(637)					(637)						637
Distributions on common units	(223,612)		(188,810)							(188,810)				(34,802)
Distributions declared on preferred shares	(14,032)		(14,032)							(14,032)
Other comprehensive loss	(14,102)		(11,925)									(11,925)		(2,177)
Net income (loss), excluding $240 of distributions to preferred unitholders	2,520		4,274							4,274				(1,754)
Balance at Dec. 31, 2019	906,575		796,349		104,251	98,325	2	1,254,788		(655,492)		(5,525)		110,226		3,265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of limited partner units	(543)													(543)
Exchange of limited partner units	0		28					28						(28)
Other	(36)		(36)					(36)
Equity-based compensation	7,345		7,345					7,345						0
Adjustments to noncontrolling interests	0		399					399						(399)
Distributions on common units	(28,230)		(23,818)							(23,818)				(4,412)
Distributions declared on preferred shares	(14,032)		(14,032)							(14,032)
Other comprehensive loss	(7,817)		(6,599)									(6,599)		(1,218)
Net income (loss), excluding $240 of distributions to preferred unitholders	(262,064)		(219,786)							(219,786)				(42,278)
Balance at Dec. 31, 2020	$ 601,198		$ 539,850		$ 104,251	$ 98,325	$ 2	$ 1,262,524		$ (913,128)		$ (12,124)		$ 61,348		$ 3,265

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Distributions per common share (in dollars per share)	$ 1.125	$ 9	$ 9
Distributions to preferred unitholders	$ 240	$ 240	$ 240

Consolidated Statements of Eq_3

Consolidated Statements of Equity - LP - USD ($) $ in Thousands	Total	Washington Prime Group, L.P.	Washington Prime Group, L.P.Cumulative Effect, Period of Adoption, Adjustment	Washington Prime Group, L.P.Partners' Equity	Washington Prime Group, L.P.Partners' EquityCumulative Effect, Period of Adoption, Adjustment	Washington Prime Group, L.P.Non- Controlling Interests	Washington Prime Group, L.P.Redeemable Non-Controlling Interests	Washington Prime Group, L.P.General PartnerPartners' Equity	Washington Prime Group, L.P.General PartnerPartners' EquityCumulative Effect, Period of Adoption, Adjustment	Washington Prime Group, L.P.General Partner PreferredPartners' Equity	Washington Prime Group, L.P.General Partner CommonPartners' Equity	Washington Prime Group, L.P.General Partner CommonPartners' EquityCumulative Effect, Period of Adoption, Adjustment	Washington Prime Group, L.P.Limited PartnersPartners' Equity	Washington Prime Group, L.P.Limited PartnersPartners' EquityCumulative Effect, Period of Adoption, Adjustment
Balance at Dec. 31, 2017		$ 1,267,122	$ 2,474	$ 1,266,064	$ 2,474	$ 1,058	$ 3,265	$ 1,099,404	$ 2,085	$ 202,576	$ 896,828	$ 2,085	$ 166,660	$ 389
Increase (Decrease) in Partners' Capital [Roll Forward]
Redemption of limited partner units	$ (28)	(28)		(28)									(28)
Other		(103)		(103)				(103)			(103)
Equity-based compensation		8,322		8,322				7,480			7,480		842
Adjustments to noncontrolling interests	0	0		0				168			168		(168)
Distributions to common unitholders, net		(222,615)		(222,549)		(66)		(187,792)			(187,792)		(34,757)
Distributions declared on preferred units		(14,032)		(14,032)			(240)	(14,032)		(14,032)
Other comprehensive loss	(1,284)	(1,284)		(1,284)				(1,104)			(1,104)		(180)
Net income (loss)	108,415	108,415		108,339		76	240	93,604		14,032	79,572		14,735
Balance at Dec. 31, 2018		1,148,271		1,147,203		1,068	3,265	999,710		202,576	797,134		147,493
Increase (Decrease) in Partners' Capital [Roll Forward]
Exercise of stock options	1	1		1				1			1		0
Redemption of limited partner units	(276)	(276)		(276)									(276)
Other		(32)		(32)				(32)			(32)
Equity-based compensation		7,837		7,837				7,800			7,800		37
Adjustments to noncontrolling interests	0	0		0				(637)			(637)		637
Distributions to common unitholders, net		(223,612)		(223,532)		(80)		(188,810)			(188,810)		(34,722)
Distributions declared on preferred units		(14,032)		(14,032)			(240)	(14,032)		(14,032)
Other comprehensive loss	(14,102)	(14,102)		(14,102)				(11,925)			(11,925)		(2,177)
Net income (loss)	2,520	2,520		2,475		45	240	4,274		14,032	(9,758)		(1,799)
Balance at Dec. 31, 2019		906,575		905,542		1,033	3,265	796,349		202,576	593,773		109,193
Increase (Decrease) in Partners' Capital [Roll Forward]
Redemption of limited partner units	(543)	(543)		(543)									(543)
Exchange of limited partner units	0	0		0				28			28		(28)
Other		(36)		(36)				(36)			(36)
Equity-based compensation		7,345		7,345				7,345			7,345
Adjustments to noncontrolling interests	0	0		0				399			399		(399)
Distributions to common unitholders, net		(28,230)		(28,131)		(99)		(23,818)			(23,818)		(4,313)
Distributions declared on preferred units		(14,032)		(14,032)			(240)	(14,032)		(14,032)
Other comprehensive loss	(7,817)	(7,817)		(7,817)				(6,599)			(6,599)		(1,218)
Net income (loss)	$ (262,064)	(262,064)		(262,127)		63	240	(219,786)		14,032	(233,818)		(42,341)
Balance at Dec. 31, 2020		$ 601,198		$ 600,201		$ 997	$ 3,265	$ 539,850		$ 202,576	$ 337,274		$ 60,351

Organization

Organization	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Washington Prime Group Inc. ("WPG Inc.") is an Indiana corporation that operates as a fully integrated, self-administered and self-managed real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended (the "Code"). WPG Inc. will generally qualify as a REIT for U.S. federal income tax purposes as long as it continues to distribute at least 90% of its REIT taxable income, exclusive of net capital gains, and satisfy certain other requirements. WPG Inc. will generally be allowed a deduction against its U.S. federal income tax liability for dividends paid by it to REIT shareholders, thereby reducing or eliminating any corporate level taxation to WPG Inc. Washington Prime Group, L.P. ("WPG L.P.") is WPG Inc.'s majority-owned limited partnership subsidiary that owns, develops and manages, through its affiliates, all of WPG Inc.'s real estate properties and other assets. WPG Inc. is the sole general partner of WPG L.P. As of December 31, 2020, our assets consisted of material interests in 101 shopping centers in the United States, consisting of open air properties and enclosed retail properties, comprised of approximately 53 million square feet (unaudited) of managed gross leasable area ("GLA"). Unless the context otherwise requires, references to "WPG," the "Company," "we," "us" or "our" refer to WPG Inc., WPG L.P. and entities in which WPG Inc. or WPG L.P. (or any affiliate) has a material ownership or financial interest, on a consolidated basis. We derive our revenues primarily from retail tenant leases, including fixed minimum rent leases, overage and percentage rent leases based on tenants' sales volumes, offering property operating services to our tenants and others, including energy, waste handling and facility services, and reimbursements from tenants for certain recoverable expenditures such as property operating, real estate taxes, repair and maintenance, and advertising and promotional expenses. We seek to enhance the performance of our properties and increase our revenues by, among other things, securing leases of anchor and inline tenant spaces, re-developing or renovating existing properties to increase the leasable square footage, and increasing the productivity of occupied locations through aesthetic upgrades, re-merchandising and/or changes to the retail use of the space. Leadership Changes and Severance Impacting Financial Results 2020 Activity In response to the COVID-19 pandemic (as discussed in Note 2 - "Basis of Presentation and Principles of Consolidation"), the Company recorded aggregate severance costs of $0.1 million related to workforce reductions, which costs are included in general and administrative expense in the consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2020. 2019 Activity On February 5, 2019, the Company's Executive Vice President, Head of Open Air Centers was terminated without cause from his position and received severance payments and other benefits pursuant to the terms and conditions of his employment agreement. In addition, the Company terminated, without cause, additional non-executive personnel in the Property Management department as part of an effort to reduce overhead costs. In connection with and as part of the aforementioned management changes, the Company recorded aggregate severance charges of $1.9 million, including $0.1 million of non-cash stock compensation in the form of accelerated vesting of equity incentive awards, which costs are included in general and administrative expense in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2019. 2018 Activity On May 7, 2018, the Company's Executive Vice President, Property Management was terminated without cause from his position and received severance payments and other benefits pursuant to the terms and conditions of his employment agreement. In addition, the Company terminated without cause additional non-executive personnel in the Property Management department. In connection with and as part of the aforementioned management and personnel changes, the Company recorded aggregate severance charges of $2.0 million, including $0.5 million of non-cash stock compensation in the form of accelerated vesting of equity incentive awards, which costs are included in general and administrative expense in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2018.

Basis of Presentation and Princ

Basis of Presentation and Principles of Consolidation	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [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 of America ("GAAP"). The consolidated balance sheets as of December 31, 2020 and 2019 include the accounts of WPG Inc. and WPG L.P., as well as their majority owned and controlled subsidiaries. The accompanying consolidated statements of operations include the consolidated accounts of the Company. All intercompany transactions have been eliminated in consolidation. Going Concern We continuously project our cash flow sources and needs. In accordance with Accounting Standards Update ("ASU") 2014-15, Presentation of Financial Statements - Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, the Company is required to evaluate whether there is substantial doubt about its ability to continue as a going concern each reporting period. In evaluating the Company’s ability to continue as a going concern, management evaluated the conditions and events that could raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that the financial statements are issued on March 16, 2021. Management considered the Company’s current projections of future cash flows, current financial condition, sources of liquidity, debt and other obligations due or anticipated to come due on or before March 16, 2022 in evaluating whether it has the ability to meet its obligations as they become due within one year after the date of filing of this Form 10-K. As a result of this evaluation, the Company does not expect to maintain compliance with certain of its current financial covenants during this period, which could cause the acceleration of principal amounts due under various debt agreements. The Company's sources of liquidity would be insufficient to satisfy such accelerated obligations if they became due on or before March 16, 2022. These conditions raise substantial doubt about the Company's ability to continue as a going concern within one year after the date that the financial statements are issued. The Company has engaged in discussions with certain holders of the Company’s Senior Notes due 2024, or "Senior Notes"(as defined in Note 6 - "Indebtedness") and certain other stakeholders with respect to potential deleveraging or restructuring transactions. These discussions have included negotiations of the terms and conditions of a financial restructuring (the "Restructuring") of the existing debt of, existing equity interests in, and certain other obligations of the Company and certain of its direct and indirect subsidiaries (the "Company Parties"). The Restructuring may need to be implemented pursuant to a plan of reorganization (the "Plan") to be filed in cases commenced under chapter 11 ("Chapter 11 Cases") of the United States Bankruptcy Code (the "Bankruptcy Code"). Although the Company continues to be open to all discussions with the holders of the Senior Notes and its other stakeholders regarding a potential Restructuring, there can be no assurance we will reach an agreement regarding a Restructuring in a timely manner, on terms that are attractive to us, or at all. The Company expects to continue to provide quality service to its customers without interruption and work with its business partners as usual during the course of these discussions and any potential transaction. On February 15, 2021, we deferred the approximately $23.2 million semi-annual interest payment on the Senior Notes and commenced a 30-day grace period under the terms of the indenture governing the Senior Notes. We elected to enter into the grace period in order to collaborate with our stakeholders regarding the Restructuring. The Company does not expect to make the interest payment on the last day of such grace period. The failure to make the interest payment will result in an event of default on March 17, 2021 under the indenture governing the Senior Notes, which will result in a cross default under the credit agreements governing our credit facilities. On March 16, 2021, we entered into forbearance agreements (the "Forbearance Agreements") with certain holders of our Senior Notes and the administrative agents of our corporate credit facilities, on behalf of the lenders under such facilities, pursuant to which, among other things, the forbearing parties agreed not to exercise any rights and remedies available to them under the indenture governing the Senior Notes or applicable credit agreement, as applicable, related to the missed interest payment or certain other defaults (in the case of the credit agreements) until the earlier of March 31, 2021 and the occurrence of any of the early termination events specified in the agreements (the "Forbearance Periods"). There can be no assurances that we will be able to extend the Forbearance Periods or that our lenders or noteholders will not accelerate our indebtedness outstanding under the Senior Notes or our credit facilities after the expiration of the Forbearance Periods. Our intentions are to consummate the Restructuring and to generate sufficient liquidity from the Restructuring to meet our obligations and operating needs. There can be no assurance that the Restructuring will occur or be successful. Additionally, we continue to focus on our initiatives to drive operational performance and work with our partners to drive revenue as we operate our business. If the Restructuring is unsuccessful, our cash position may not be sufficient to support our daily operations or initiatives. Reverse-Stock Split On December 17, 2020, the Company's common shareholders approved an amendment to the Company's Amended and Restated Articles of Incorporation that effectuated a reverse-stock split (see Note 8 - "Equity" for additional details). Unless otherwise noted, all common share/unit and per share/unit information contained herein has been restated to reflect the reverse stock split as if it had occurred as of the beginning of the earliest period presented. COVID-19 During March 2020, a global pandemic was declared by the World Health Organization related to the rapidly growing outbreak of a novel strain of coronavirus ("COVID-19"). The pandemic has significantly impacted the economic conditions in the United States, with accelerated effects since March 2020 as federal, state and local governments react to the public health crisis, creating significant uncertainties in the United States economy and infrastructure. While certain of our shopping centers were impacted by jurisdictional closures or capacity limitations during the second quarter of 2020, all of our shopping centers were open a s of December 31, 2020, albeit subject to certain applicable operational limitations and restrictions. In response to these closures and capacity limitations, we granted rent relief to certain of our tenants through a combination of rent deferrals and rent abatements, which has had a material adverse impact on the Company's revenues, results of operations and cash flows for the year ending December 31, 2020. The situation continues to evolve as certain geographic regions across the United States are experiencing a surge in new cases, which could result in shoppers limiting their in-store purchases in exchange for curbside or on-line purchases as well as reduced foot traffic. We cannot predict whether, when or the manner in which the conditions surrounding COVID-19, including the proliferation of any mutant strains, will change, including the timing of possible additional closure requirements or the subsequent lifting of any said restrictions. As described in Note 3 - "Summary of Significant Accounting Policies: Rental Income," we derive almost all of our income from rental payments and other tenant charges. Our revenues and cash flow have been adversely affected since the start of the pandemic as a significant number of our tenants have been unable to meet their obligations to us. Additionally, certain of our tenants have sought the protection of the bankruptcy laws as a result of the outbreak of COVID-19, resulting in the modification or termination of certain leases, causing a further reduction in our revenues and cash flow. Furthermore, certain of our tenants, including anchor tenants, hold the right under their lease(s) to terminate their lease(s) or reduce their rental rate if certain occupancy conditions are not met, if certain anchor tenants close, if certain sales levels or profit margins are not achieved, all of which could be triggered in the event of one or more tenant bankruptcies and resulting lease terminations. While the full outcome of the COVID-19 pandemic is still unknown, it has and continues to negatively impact the revenues and business of our tenants. Many of our tenants have requested some form of rent relief, and relief provided thus far has reduced our fiscal year 2020 revenues by approximately $24.1 million due to rent abatements, while additional relief in the form of rent deferrals to future periods has impacted our fiscal year 2020 operating cash flows. Additionally, as part of our continual assessment of the future collectibility of rents, we recorded an adjustment to rental income of approximately $52.4 million, including the change in estimate of collectibility of accrued (straight-line) rent, for the fiscal year 2020. A further worsening of the financial condition of our tenants may impact our continual assessment of future collectibility of rents, which could cause us to write-off additional straight-line rent that has not yet been billed. We evaluate our real estate assets and other assets for impairment indicators whenever events or changes in circumstances indicate that recoverability of our investment in the asset is not reasonably assured. Furthermore, this evaluation is conducted no less frequently than quarterly, irrespective of changes in circumstances. The prolonged outbreak of the COVID-19 pandemic resulted in sustained closure of our centers earlier this year as well as the cessation or reduction of the operations of certain of our tenants, which has resulted in a reduction in our revenues, due to the impaired financial stability of our tenants, and ultimately our cash flows for many of our centers as well as other sources of income generated by our properties. In addition to reduced revenues generated by our centers as a result of the COVID-19 outbreak, our ability to obtain sufficient financing, including restructuring certain debt obligations, for such properties may be impaired as well as our ability to lease or re-lease centers as a result of worsening market and economic conditions produced by the persistence of the COVID-19 pandemic. As of December 31, 2020, our evaluation of impairment considered our estimate of cash flow declines caused by the COVID-19 pandemic, but our other assumptions, including estimated hold period, were generally unchanged given the highly uncertain environment. The worsening of estimated future cash flows due to a change in our plans, policies, or views of market and economic conditions as it relates to one or more of our properties adversely impacted by the COVID-19 outbreak could result in the recognition of substantial impairment charges imposed on our assets which could adversely impact our financial results. See Note 4 - "Investment in Real Estate" for discussion of impairment charges recognized as of December 31, 2020. General These consolidated financial statements reflect the consolidation of properties that are wholly owned or properties in which we own less than a 100% interest but that we control. Control of a property is demonstrated by, among other factors, our ability to refinance debt and sell the property without the consent of any other unaffiliated partner or owner, and the inability of any other unaffiliated partner or owner to replace us. We consolidate a variable interest entity ("VIE") when we are determined to be the primary beneficiary. Determination of the primary beneficiary of a VIE is based on whether an entity has (1) the power to direct activities that most significantly impact the economic performance of the VIE and (2) the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE. Our determination of the primary beneficiary of a VIE considers all relationships between us and the VIE, including management agreements and other contractual arrangements. As of December 31, 2020, we have one VIE which consists of our interest in WPG L.P. There have been no changes during the year ended December 31, 2020 to any of our previous conclusions about whether an entity qualifies as a VIE or whether we are the primary beneficiary of any previously identified VIE. During the year ended December 31, 2020, we did not provide financial or other support to a previously identified VIE that we were not previously contractually obligated to provide. Investments in partnerships and joint ventures represent our noncontrolling ownership interests in properties. We account for these investments using the equity method of accounting. We initially record these investments at cost and we subsequently adjust for net equity in income or loss, which we allocate in accordance with the provisions of the applicable partnership or joint venture agreement and cash contributions and distributions, if applicable. The allocation provisions in the partnership or joint venture agreements are not always consistent with the legal ownership interests held by each general or limited partner or joint venture investee primarily due to partner preferences. We separately report investments in joint ventures for which accumulated distributions have exceeded investments in and our share of net income from the joint ventures within cash distributions and losses in unconsolidated entities, at equity in the consolidated balance sheets. The net equity of certain joint ventures is less than zero because of financing or operating distributions that are usually greater than net income, as net income includes non-cash charges for depreciation and amortization, and WPG has historically committed to or intends to fund the venture. As of December 31, 2020, our assets consisted of material interests in 101 shopping centers. The consolidated financial statements as of that date reflect the consolidation of 85 wholly owned properties and four additional properties that are less than wholly owned, but which we control or for which we are the primary beneficiary. We account for our interests in the remaining 12 properties, or the joint venture properties, using the equity method of accounting. While we manage the day-to-day operations of the joint venture properties, we do not control the operations as we have determined that our partner or partners have substantive participating rights with respect to the assets and operations of these joint venture properties. We allocate net operating results of WPG L.P. to third parties and to WPG Inc. based on the partners' respective weighted average ownership interests in WPG L.P. Net operating results of WPG L.P. attributable to third parties are reflected in net income attributable to noncontrolling interests. WPG Inc.'s weighted average ownership interest in WPG L.P. was 84.7%, 84.4% and 84.4% for the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020 and 2019, WPG Inc.'s ownership interest in WPG L.P. was 84.8% and, 84.5% respectively. We adjust the noncontrolling limited partners' interests at the end of each period to reflect their interest in WPG L.P.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Cash and Cash Equivalents We consider all highly liquid investments purchased with an original maturity of 90 days or less to be cash and cash equivalents. Cash equivalents are carried at cost, which approximates fair value. Cash equivalents generally consist of commercial paper, bankers' acceptances, repurchase agreements, and money market deposits or securities. Financial instruments that potentially subject us to concentrations of credit risk include our cash and cash equivalents and our tenant receivables. We place our cash and cash equivalents with institutions with high credit quality. However, at certain times, such cash and cash equivalents may be in excess of FDIC and SIPC insurance limits. Reconciliation of Cash, Cash Equivalents, and Restricted Cash The following is a summary of our cash, cash equivalents and restricted cash total as presented in our statements of cash flows for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Cash and cash equivalents $ 92,618 $ 41,421 $ 42,542 Restricted cash 37,614 34,054 18,542 Total cash, cash equivalents and restricted cash $ 130,232 $ 75,475 $ 61,084 Restricted cash primarily relates to cash held in escrow for payment of real estate taxes and property reserves for maintenance, expansion or leasehold improvements as required by our mortgage loans. Restricted cash is included in "Deferred costs and other assets" in the accompanying balance sheets as of December 31, 2020 and 2019. Investment Properties We record investment properties at fair value when acquired. Investment properties include costs of acquisitions; development, predevelopment, and construction (including allocable salaries and related benefits); tenant allowances and improvements; and interest and real estate taxes incurred during construction. We capitalize improvements and replacements from repair and maintenance when the repair and maintenance extends the useful life, increases capacity, or improves the efficiency of the asset. All other repair and maintenance items are expensed as incurred. We capitalize interest on projects during periods of construction until the projects are ready for their intended purpose based on interest rates in place during the construction period. Capitalized interest for the years ended December 31, 2020, 2019 and 2018 was $7,163, $3,961 and $2,234, respectively. We record depreciation on buildings and improvements utilizing the straight-line method over an estimated original useful life, which is generally five three We review investment properties for impairment on a property-by-property basis whenever events or changes in circumstances indicate that the carrying value of investment properties may not be recoverable. These circumstances include, but are not limited to, declines in a property's cash flows, ending occupancy, estimated market values or our decision to dispose of a property before the end of its estimated useful life. Furthermore, this evaluation is conducted no less frequently than quarterly, irrespective of changes in circumstances. We measure any impairment of investment property when the estimated undiscounted operating income before depreciation and amortization plus its residual value is less than the carrying value of the property. To the extent impairment has occurred, we charge to expense the excess of carrying value of the property over its estimated fair value. The evaluation of impairment is subject to certain management assumptions including projected net operating income, anticipated hold period, expected capital expenditures and the capitalization rate used to estimate the property's residual value. We may decide to dispose of properties that are held for use and the consideration received from these property dispositions may differ from their carrying values. We also review our investments, including investments in unconsolidated entities, if events or circumstances change indicating that the carrying amount of our investments may not be recoverable. We will record an impairment charge if we determine that a decline in the fair value of the investments in unconsolidated entities is other-than-temporary. Changes in economic and operating conditions that occur subsequent to our review of recoverability of investment property and other investments in unconsolidated entities could impact the assumptions used in that assessment and could result in future charges to earnings if assumptions regarding those investments differ from actual results. See the "Impairment" section within Note 4 - "Investment in Real Estate" for a discussion of recent impairments. Investments in Unconsolidated Entities Joint ventures are common in the real estate industry. We use joint ventures to finance properties, develop new properties, and diversify our risk in a particular property or portfolio of properties. We held material unconsolidated joint venture ownership interests in 12 and 13 properties as of December 31, 2020 and 2019, respectively (see Note 5 - "Investment in Unconsolidated Entities, at Equity"). Certain of our joint venture properties are subject to various rights of first refusal, buy-sell provisions, put and call rights, or other sale or marketing rights for partners which are customary in real estate joint venture agreements and the industry. We and our partners in these joint ventures may initiate these provisions (subject to any applicable lock up or similar restrictions), which may result in either the sale of our interest or the use of available cash or borrowings to acquire the joint venture interest from our partner. Fair Value Measurements The Company measures and discloses its fair value measurements in accordance with Accounting Standards Codification ("ASC") Topic 820 - “Fair Value Measurement” (“Topic 820”). Topic 820 guidance emphasizes that fair value is a market-based measurement, not an entity-specific measurement. Therefore, a fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, Topic 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity's own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). The fair value hierarchy, as defined by Topic 820, contains three levels of inputs that may be used to measure fair value as follows: • Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. • Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly such as interest rates, foreign exchange rates, and yield curves, that are observable at commonly quoted intervals. • Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity's own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. Note 6 - "Indebtedness" includes a discussion of the fair value of debt measured using Level 1 and Level 2 inputs. Note 4 - "Investment in Real Estate" includes a discussion of the fair value inputs used in our impairment analyses, using Level 3 inputs, primarily. Level 3 inputs include our estimations of net operating results of the property, capitalization rates and discount rates. The Company has derivatives that must be measured under the fair value standard (see Note 7 - "Derivative Financial Instruments"). The Company currently does not have any non-financial assets and non-financial liabilities that are required to be measured at fair value on a recurring basis. Purchase Accounting Valuation We record the total consideration of acquisitions, including transaction costs as permitted under ASU 2017-1, "Business Combinations (Topic 805): Clarifying the Definition of a Business," and any excess investment in unconsolidated entities to the various components of the acquisition based upon the fair value of each component which may be derived from various Level 2 and Level 3 inputs. Level 3 inputs include our estimations of net operating results of the property, capitalization rates and discount rates. Also, we may utilize third party valuation specialists. These components typically include buildings, land and intangibles related to in-place leases and we estimate: • the fair value of land and related improvements and buildings on an as-if-vacant basis; • the market value of in-place leases based upon our best estimate of current market rents and amortize the resulting market rent adjustment into revenues; • the value of costs to obtain tenants, including tenant allowances and improvements and leasing commissions; and • the value of revenue and recovery of costs foregone during a reasonable lease-up period, as if the space was vacant. The fair value of buildings is depreciated over the estimated remaining life of the acquired buildings or related improvements. We amortize tenant improvements, in-place lease assets and other lease-related intangibles over the remaining life of the underlying leases. We also estimate the value of other acquired intangible assets, if any, which are amortized over the remaining life of the underlying related intangibles. Use of Estimates We prepared the accompanying consolidated financial statements in accordance with GAAP. This requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the reported period. Our actual results could differ from these estimates. Segment Disclosure Our primary business is the ownership, development and management of retail real estate. We have aggregated our operations, including enclosed retail properties and open air properties, into one reportable segment because they have similar economic characteristics and we provide similar products and services to similar types of, and in many cases, the same tenants. New Accounting Pronouncements In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, "Financial Instruments - Credit Losses," which introduced new guidance for an approach based on expected losses to estimate credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides a simplified accounting model for purchased financial assets with credit deterioration since their origination. Instruments in scope include loans, held-to-maturity debt securities, and net investments in leases as well as reinsurance and trade receivables. In November 2018, the FASB issued ASU 2018-19, which clarifies that operating lease receivables are outside the scope of the new standard. We adopted this ASU on January 1, 2020, noting our seller-provided bridge financing associated with our other indebtedness (see Note 6 - "Indebtedness" for further details) and certain other miscellaneous accounts are in scope of ASU 2016-13. However, there was no impact to our consolidated financial statements at adoption. In April 2020, the FASB issued a question-and-answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of COVID-19. Under existing lease guidance, the Company would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated with the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A clarifies that entities may elect to not evaluate whether lease-related relief that lessors provide to mitigate the economic effects of COVID-19 on lessees is a lease modification under Topic 842, "Leases." Instead, an entity that elects not to evaluate whether a concession directly related to COVID-19 is a modification, can account for the concession as though enforceable rights and obligations for those concessions existed (regardless of whether these enforceable rights and obligations for the concessions explicitly exist in the contract). Both lessees and lessors may make this election. For all concessions that did not result in a substantial increase in the rights of the lessor or the obligations of the lessees, the Company elected to adopt this optional relief in the second quarter of 2020, resulting in abatements granted in the period being recognized as negative variable revenue during the period of abatement. Concessions in the form of rent deferrals were effectively accounted for as if the lease was unchanged, though in all cases receivables were evaluated under the collectibility guidance in Topic 842. In March 2020, the FASB issued ASU 2020-04 "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." ASU 2020-04 provides temporary optional expedients and exceptions to GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from the London Inter-Bank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate ("SOFR"). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. If elected, an entity would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities electing relief would need to apply it consistently for all eligible modified contracts accounted for under a particular codification topic or industry subtopic. Additionally, entities can elect various optional expedients that would allow them to continue to apply hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. Entities electing relief related to hedging relationships can generally elect to apply the optional expedients on a hedge-by-hedge basis. The guidance is effective upon issuance and can be applied to modifications of existing contracts made after January 1, 2020 and can be applied to eligible hedging relationships existing as of or entered into after the same date. The relief is temporary and cannot be applied to contract modifications that occur after December 31, 2022 or hedging relationships entered into or evaluated after that date. However, certain optional expedients can be applied to hedging relationships evaluated in periods after December 31, 2022. As of December 31, 2020, we had approximately $812.0 million (excluding net debt issuance costs of $15.5 million) of our aggregate consolidated indebtedness that was indexed to LIBOR. In addition, as of December 31, 2020, we had approximately $640.3 million of consolidated indebtedness swapped to LIBOR plus a fixed spread under hedging relationships. The Company continues to evaluate the impact of the guidance and may apply other elections as applicable as additional changes in the market occur. Deferred Costs and Other Assets Deferred costs and other assets include the following as of December 31, 2020 and 2019: 2020 2019 Deferred leasing costs and corporate improvements, net $ 38,690 $ 53,729 In-place lease intangibles, net 19,173 27,538 Acquired above market lease intangibles, net 9,232 13,419 Mortgage and other escrow deposits 37,614 34,054 Seller financing receivable (1) — 55,000 Prepaids, notes receivable and other assets, net 25,015 21,294 $ 129,724 $ 205,034 (1) During the year ended December 31, 2019, the Company provided a $55.0 million bridge financing to certain counterparties as part of the our other indebtedness (see Note 6 - "Indebtedness" for further details) which was settled in 2020. Deferred Leasing Costs and Corporate Improvements Our deferred leasing costs consist of internal salaries and related benefits prior to the adoption of ASU 2016-02 and fees paid to third party brokers. We record amortization of deferred leasing costs on a straight-line basis over the terms of the related leases. Details of deferred leasing costs and corporate improvements as of December 31, 2020 and 2019 are as follows: 2020 2019 Deferred leasing costs $ 98,443 $ 121,363 Corporate improvements 6,099 6,099 Accumulated amortization (65,852) (73,733) Deferred lease costs and corporate improvements, net $ 38,690 $ 53,729 Amortization of deferred leasing costs is a component of depreciation and amortization expense. The accompanying consolidated statements of operations include amortization expense of $18.2 million, $24.5 million, and $27.9 million for the years ended December 31, 2020, 2019 and 2018, respectively. Revenue Recognition Rental Income We receive rental income from the leasing of retail and other space under operating leases, as we retain substantially all of the risks and benefits of ownership of the investment properties. The majority of these leases contain extension options, typically at the lessee's election, and/or early termination provisions. Further, our leases do not contain any provisions that would allow the lessee to purchase the underlying assets throughout the lease term. In most cases, consideration received typically includes either a fixed minimum rent or percentage rent component, reimbursement of a fixed portion of our property operating expenses, including utility, security, janitorial, landscaping, food court and other administrative expenses included in common area maintenance, or CAM, and reimbursement of lessor costs such as real estate taxes and insurance, computed based upon a formula in accordance with the lease terms. When not reimbursed by the fixed CAM component, CAM expense reimbursements and lessor costs are based on the tenant's proportionate share of the allocable operating expenses and CAM capital expenditures for the property. We accrue reimbursements from tenants for recoverable portions of all these expenses as revenue in the period the applicable expenditures are incurred. We recognize differences between estimated recoveries and the final billed amounts in the subsequent year. Additionally, a large number of our tenants are also required to pay overage rents based on sales during the applicable lease year over a base amount stated in the lease agreement. We recognize overage rents only when each tenant's sales exceed the applicable sales threshold as defined in their lease. We also collect lease termination income from tenants to allow for the tenant to vacate their space prior to their scheduled lease termination date. We recognize lease termination income in the period when a termination agreement is signed, collectability is assured, and we are no longer obligated to provide space to the tenant. In the event that a tenant is in bankruptcy when the termination agreement is signed, termination fee income is deferred and recognized when, and if, it is received. We record an adjustment to rental income in the period there is a change in our assessment of whether the collectibility of operating lease payments is probable. In making this estimation, we evaluate information that includes the age of billed receivables, collection history, lease concessions granted by the Company and tenants' financial condition to assess the probability of collection. We have elected the practical expedient in ASU 2016-02 to not separate non-lease components from lease components as our underlying leases qualify as operating leases and the timing and pattern of transfer of the lease and non-lease components are the same. We note that the predominant component of our leases is the lease component and thus account for the combined lease and non-lease (CAM) component of the non-cancelable lease term on a straight-line basis in accordance with ASC 842. Rental income also includes accretion related to above-market and below-market lease intangibles related to the acquisition of operating properties. We amortize any tenant inducements as a reduction of rental income utilizing the straight-line method over the term of the related lease or occupancy term of the tenant, if shorter. The following table summarizes our rental income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Operating lease payments, fixed $ 478,589 $ 539,458 $ 592,481 Operating lease payments, variable 94,440 90,922 91,784 Amortization of straight-line rent, inducements, and rent abatements (17,538) 4,409 3,022 Net amortization/accretion of above and below-market leases 8,925 6,382 8,971 Change in estimate of collectibility of rental income (57,734) (7,538) (5,826) Total rental income $ 506,682 $ 633,633 $ 690,432 Included in the amounts presented for the year ended December 31, 2020 are rent abatements $24.1 million and a change in our estimate of collectibility of rental income of $52.4 million, including the change in estimate of collectibility of accrued (straight-line) rent, in response to the COVID-19 pandemic. We record a change in estimate of collectibility of rental income on a lease-by-lease basis in the period there is a change in our assessment of whether the collectibility of operating lease payments is probable. Accounts are written off when they are deemed to be no longer collectible. The following table provides a rollforward of activity during the years ended December 31, 2020, 2019 and 2018 is as follows: For the Year Ended December 31, 2020 2019 2018 Balance, beginning of year $ 12,911 $ 10,131 $ 7,867 Change in estimate of collectibility of rental income 57,734 7,538 5,826 Accounts written off, net of recoveries, and other (9,223) (4,758) (3,562) Balance, end of year $ 61,422 $ 12,911 $ 10,131 Future payments to be received under non-cancelable operating leases for each of the next five years and thereafter, excluding variable payments of tenant reimbursements, percentage or overage rents, and lease termination payments as of December 31, 2020 are as follows: 2021 $ 414,919 2022 357,630 2023 296,072 2024 233,409 2025 178,281 Thereafter 543,439 $ 2,023,750 Other Income The following table summarizes our other income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Ancillary $ 6,561 $ 11,016 $ 10,275 Fee related 7,544 11,682 9,527 Miscellaneous 3,631 5,153 7,245 Total other income $ 17,736 $ 27,851 $ 27,047 Ancillary: We seek to monetize our common areas through robust ancillary programs. These programs include destination holiday experiences, customer service programs, sponsored children's play areas and local events, and static and digital media initiatives. We enter into agreements with unrelated third parties under these programs and charge a negotiated fee in exchange for providing the unrelated third party access to the common area as defined under the respective agreements. We recognize the fee as revenue as we satisfy our performance obligations, which typically occurs over one year. Fee related: We collect fee income primarily from our unconsolidated joint ventures in exchange for providing management, leasing, and development services. Management fees are charged as a percentage of revenues (as defined in the applicable management agreements) and are recognized as revenue as we render such services. Leasing fees are charged on a fixed amount per square foot signed or a percentage of net rent negotiated within the underlying lease and are recognized upon lease execution. Development fees are charged on a contractual percentage of hard costs to develop the respective asset and are recognized as we satisfy our obligation to provide the development services. Miscellaneous: Miscellaneous income primarily relates to insurance proceeds received from property insurance claims and excess franchise tax refunds received for a previously-owned property. We recognize these items upon cash receipt. Income and Other Taxes WPG Inc. has elected to be taxed as a REIT under Sections 856 through 860 of the Code and applicable Treasury regulations relating to REIT qualification. In order to maintain REIT status, the regulations require the entity to distribute at least 90% of taxable income, exclusive of net capital gains, to its owners and meet certain other asset and income tests as well as other requirements. WPG Inc. intends to continue to adhere to these requirements and maintain its REIT status and that of its REIT subsidiaries. As a REIT, WPG Inc. will generally not be liable for federal corporate income taxes as long as it continues to distribute at least of 100% of its taxable income. Thus, we made no provision for federal income taxes on WPG Inc. in the accompanying consolidated financial statements. If WPG Inc. fails to qualify as a REIT, it will be subject to tax at regular corporate rates for the years in which it failed to qualify. If WPG Inc. loses its REIT status it could not elect to be taxed as a REIT for four years unless its failure to qualify was due to reasonable cause and certain other conditions were satisfied. We have also elected taxable REIT subsidiary ("TRS") status for some of WPG Inc.'s subsidiaries. This enables us to provide services that would otherwise be considered impermissible for REITs and participate in activities that do not qualify as "rents from real property." For the years ended December 31, 2020, 2019 and 2018, we recorded federal income tax (benefits) provisions of $(1,874), $(79), and $525, respectively, related to the taxable income generated by the TRS entities, which is included in income and other taxes in the accompanying consolidated statements of operations and comprehensive (loss) income. For these entities, deferred tax assets and liabilities are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted tax rates to be in effect when the temporary differences reverse. As of December 31, 2020, the Company had a deferred tax liability of $1,100. As of December 31, 2019, the Company had a deferred tax asset of $410 as a result of federal and state net operating loss carryovers. A valuation allowance for deferred tax assets is provided if we believe all or some portion of the deferred tax asset may not be realized. An increase or decrease in the valuation allowance that results from the change in circumstances that causes a change in our judgment about the realizability of the related deferred tax asset is included in income. As of December 31, 2020 and 2019, the TRS valuation allowance for federal and state net operating loss carryovers was $0 and $410, respectively. As of December 31, 2020 and 2019, the TRS had no net deferred tax assets related to net operating loss carryovers. We are also subject to certain other taxes, including state and local taxes and franchise taxes, which are included in income and other taxes in the accompanying consolidated statements of operations and comprehensive (loss) income. For federal income tax purposes, the cash distributions paid to WPG Inc.'s common and preferred shareholders may be characterized as ordinary income, return of capital (generally non-taxable) or capital gains. Tax law permits certain characterization of distributions which could result in differences between cash basis and tax basis distribution amounts. The following characterizes distributions paid per common and preferred share on a tax basis for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 $ % $ % $ % Common shares Ordinary income $ 1.1250 100.00 % $ 4.5009 50.01 % $ 9.0000 100.00 % Capital gain — — % 4.4991 49.99 — — % $ 1.1250 100.00 % $ 9.0000 100.00 % $ 9.0000 100.00 % Series H Preferred Shares Ordinary income $ 1.8752 100.00 % $ 0.9378 50.01 % $ 1.8752 100.00 % Capital gain — — % 0.9374 49.99 — — % $ 1.8752 100.00 % $ 1.8752 100.00 % $ 1.8752 100.00 % Series I Preferred Shares Ordinary income $ 1.7188 100.00 % $ 0.8596 50.01 % $ 1.7188 100.00 % Capital gain — — % 0.8592 49.99 — — % $ 1.7188 100.00 % $ 1.7188 100.00 % $ 1.7188 100.00 % The capital gains characterized in the aforementioned table for the year ended December 31, 2019 have been designated as capital gain dividends pursuant to §857(b)(3)(B) of the Code. Noncontrolling Interests for WPG Inc. Details of the carrying amount of WPG Inc.'s noncontrolling interests are as follows as of December 31, 2020 and 2019: 2020 2019 Limited partners' interests in WPG L.P. $ 60,351 $ 109,193 Noncontrolling interests in properties 997 1,033 Total noncontrolling interests $ 61,348 $ 110,226 Net income attributable to noncontrolling interests (which includes limited partners' interests in WPG L.P. and noncontrolling interests in consolidated properties) is a component of consolidated net income of WPG Inc. Redeemable Noncontrolling Interests for WPG Inc. At December 31, 2020 and 2019, redeemable noncontrolling interests represented the outstanding 130,592 units of WPG L.P. 7.3% Series I-1 Preferred Units (the "Series I-1 Preferred Units"). Dividends accrue quarterly at an annual rate of 7.3% per share. The unaffiliated third parties have, at their option, the right to have their equity purchased by the Company subject to the satisfaction of certain conditions.

Investment in Real Estate

Investment in Real Estate	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Investment in Real Estate	Investment in Real Estate Summary Investment properties consisted of the following as of December 31, 2020 and 2019: 2020 2019 Land $ 801,056 $ 823,887 Buildings and improvements 4,966,739 4,974,330 Total land, buildings and improvements 5,767,795 5,798,217 Furniture, fixtures and equipment 106,006 104,189 Investment properties at cost 5,873,801 5,902,406 Less: accumulated depreciation 2,539,745 2,397,736 Investment properties at cost, net $ 3,334,056 $ 3,504,670 Construction in progress included above $ 185,275 $ 115,280 Real Estate Acquisitions and Dispositions We acquire interests in properties to generate both current income and long-term appreciation in value. We acquire interests in individual properties or portfolios of retail real estate companies that meet our investment criteria and dispose of properties which no longer meet our strategic criteria. Unless otherwise noted below, gains and losses on these transactions are included in gain on sale of interests in properties, net in the accompanying consolidated statements of operations and comprehensive (loss) income. No acquisition activity occurred during the years ended December 31, 2020 and 2019. Acquisition activity for the year ended December 31, 2018 and disposition activity for the years ended December 31, 2020, 2019 and 2018 is highlighted as follows: 2018 Acquisitions On April 11, 2018, we acquired, through a sale-leaseback transaction, four Sears department stores and adjacent Sears Auto Centers at Longview Mall, located in Longview, Texas; Polaris Fashion Place®, located in Columbus, Ohio; Southern Hills Mall, located in Sioux City, Iowa; and Town Center at Aurora®, located in Aurora, Colorado. The purchase price was approximately $28.5 million and was funded by a combination of $13.4 million from our Facility (as defined in Note 6 - "Indebtedness"), $9.7 million from the first tranche of the Four Corners transaction, as discussed below, and $5.4 million from O'Connor Mall Partners, L.P. ("O'Connor") related to their pro-rata share of the joint venture that owns Polaris Fashion Place® (see Note 5 - "Investment in Unconsolidated Entities, at Equity"). On April 24, 2018, the Company closed on the acquisition of Southgate Mall, located in Missoula, Montana, for $58.0 million, which was funded from our Facility (as defined in Note 6 - "Indebtedness"). The following table summarizes the fair value allocation for the acquisitions, which was finalized during the three months ended June 30, 2018: Investment properties $ 72,647 Investment in and advances to unconsolidated entities, at equity 5,543 Deferred costs and other assets 10,311 Accounts payable, accrued expenses, intangibles, and deferred revenue (8,393) Net cash paid for acquisitions $ 80,108 Intangibles of $10.3 million, which relate primarily to above-market leases and lease in place values, are included in “Deferred costs and other assets” as of the respective acquisition dates. The initial weighted average useful life of the intangible assets was 11.5 years. Intangibles of $4.9 million, which relate primarily to below-market leases, are included in “Accounts payable, accrued expense, intangibles, and deferred revenue” as of the respective acquisition dates. The initial weighted average useful life of the intangible liabilities was 9.6 years. We capitalized $0.6 million of transaction costs as the transactions were accounted for as asset acquisitions. 2020 Dispositions On March 13, 2020, Seminole Towne Center, located in Sanford, Florida, was transitioned to the lender pursuant to the terms within a deed-in-lieu of foreclosure agreement. This property was held in an unconsolidated joint venture and all operational involvement between us and the related property ceased in connection with this transition (see Note 5 - "Investment in Unconsolidated Entities, at Equity" for additional details). On January 31, 2020, we completed the sale of Dekalb Plaza, located in King of Prussia, Pennsylvania, to an unaffiliated private real estate investor for a purchase price of $13.6 million. The net proceeds of $13.4 million was used to fund ongoing redevelopment efforts and general corporate purposes. On January 14, 2020, we completed the sale of Matteson Plaza, located in Matteson, Illinois, to an unaffiliated private real estate investor for a purchase price of $1.1 million. The net proceeds of $0.4 million was used for general corporate purposes. We were party to two separate purchase and sale agreements to sell certain outparcels to FCPT Acquisitions, LLC ("Four Corners"). The following table summarizes the key terms of each of the closings that occurred during the year ended December 31, 2020: Sales Date Parcels Sold Purchase Price Sales Proceeds February 13, 2020 2 $ 1,961 $ 1,945 September 17, 2020 1 2,072 2,063 October 29, 2020 1 1,158 1,155 November 13, 2020 1 1,899 1,814 November 20, 2020 1 1,811 1,697 6 $ 8,901 $ 8,674 Based upon the closings above and amendments executed as of December 31, 2020, there are no remaining parcels from the first purchase and sale agreement and the Company has approximately $19.1 million from the second purchase and sale agreement to close, subject to due diligence and closing conditions. Additionally, during the year ended December 31, 2020, the Company sold certain undeveloped land parcels and developed outparcels for an aggregate purchase price of approximately $4.3 million, receiving net proceeds of approximately $3.5 million. The net proceeds from the disposition activities were generally used to fund ongoing redevelopment efforts and for general corporate purposes. In connection with the 2020 disposition activities, the Company recorded a net gain of $31.9 million, which is included in gain on disposition of interests in properties, net in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2020. 2019 Dispositions On December 19, 2019, we completed the sale of Charles Towne Square, located in Charleston, South Carolina, to an unaffiliated private real estate investor for a purchase price of $5.0 million. The net proceeds of $4.6 million were used to fund ongoing redevelopment efforts and general corporate purposes. The following table summarizes the key terms of each of the closings with Four Corners that occurred during the year ended December 31, 2019: Sales Date Parcels Sold Purchase Price Sales Proceeds January 18, 2019 8 $ 9,435 $ 9,364 February 11, 2019 1 2,766 2,720 April 3, 2019 1 2,048 2,016 June 28, 2019 3 3,050 3,031 August 1, 2019 1 1,210 1,199 August 29, 2019 1 3,397 3,394 September 16, 2019 1 3,205 3,118 September 27, 2019 2 4,412 4,377 October 18, 2019 2 3,011 2,989 December 30, 2019 5 8,560 8,495 25 $ 41,094 $ 40,703 Additionally, during the year ended December 31, 2019, the Company sold certain undeveloped land parcels and developed outparcels for an aggregate purchase price of approximately $8.8 million, receiving net proceeds of approximately $8.2 million. The net proceeds from the disposition activities were generally used to fund ongoing redevelopment efforts and for general corporate purposes. In connection with the 2019 dispositions, the Company recorded a net gain of $38.4 million which is included in gain on disposition of interests in properties, net in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2019. On December 18, 2019, West Ridge Mall and Plaza (collectively "West Ridge"), located in Topeka, Kansas, were transitioned to the lender (see Note 6 - "Indebtedness" for further discussion). On July 1, 2019, Towne West Square, located in Wichita, Kansas, was transitioned to the lender (see Note 6 - "Indebtedness" for further discussion). 2018 Dispositions The following table summarizes the key terms of each of the closings with Four Corners that occurred during the year ended December 31, 2018: Sales Date Parcels Sold Purchase Price Sales Proceeds January 12, 2018 10 $ 13,692 $ 13,506 June 29, 2018 5 9,503 9,423 July 27, 2018 2 4,607 4,530 October 31, 2018 2 1,718 1,714 November 16, 2018 1 3,195 3,166 20 $ 32,715 $ 32,339 The net proceeds were used to fund a portion of the acquisition of the Sears parcels on April 11, 2018, as discussed above, to fund ongoing redevelopment efforts and for general corporate purposes. In connection with the 2018 dispositions, the Company recorded a net gain of $24.6 million which is included in gain on disposition of interests in properties, net in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2018. On October 23, 2018, Rushmore Mall, located in Rapid City, South Dakota, was transitioned to the lender (see Note 6 - "Indebtedness" for further discussion). Intangible Assets and Liabilities Associated with Acquisitions Intangible assets and liabilities, which were recorded at the respective acquisition dates, are associated with the Company's acquisitions of properties at fair value. The gross intangibles recorded as of their respective acquisition date are comprised of an asset for acquired above-market leases in which the Company is the lessor, a liability for acquired below-market leases in which the Company is the lessor, and an asset for in-place leases. The following table denotes the gross carrying values of the respective intangibles as of December 31, 2020 and 2019: Balance as of Intangible Asset/Liability December 31, 2020 December 31, 2019 Above-market leases - Company is lessor $ 27,471 $ 46,745 Below-market leases - Company is lessor $ 78,356 $ 108,345 In-place leases $ 74,903 $ 103,043 The intangibles related to above and below-market leases in which the Company is the lessor are amortized to minimum rents on a straight-line basis over the estimated life of the lease, with amortization as a net increase to minimum rents in the amounts of $8,925, $6,382, and $8,971 for the years ended December 31, 2020, 2019 and 2018, respectively. In-place leases are amortized to depreciation and amortization expense over the life of the leases to which they pertain, with such amortization of $8,362, $11,409, and $14,780 for the years ended December 31, 2020, 2019 and 2018, respectively. The table below identifies the types of intangible assets and liabilities, their location on the consolidated balance sheets, their weighted average amortization period, and their book value, which is net of accumulated amortization, as of December 31, 2020 and 2019: Balance as of Intangible Location on the Weighted Average Remaining Amortization (in years) December 31, 2020 December 31, 2019 Above-market leases - Company is lessor Deferred costs and other assets 7.6 $ 9,232 $ 13,419 Below-market leases - Company is lessor Accounts payable, accrued expenses, intangibles and deferred revenues 13.0 $ 41,773 $ 54,885 In-place leases Deferred costs and other assets 13.8 $ 19,173 $ 27,538 The future net amortization of intangibles as an increase (decrease) to net income as of December 31, 2020 is as follows: Above/Below-Market Leases-Lessor In-place Leases Total Net Intangible Amortization 2021 $ 3,263 $ (2,957) $ 306 2022 3,240 (2,482) 758 2023 2,774 (2,006) 768 2024 2,870 (1,559) 1,311 2025 2,666 (1,165) 1,501 Thereafter 17,728 (9,004) 8,724 $ 32,541 $ (19,173) $ 13,368 Impairment During the fourth quarter of 2020, we recorded an impairment charge of approximately $109.0 million related to one enclosed retail property and one open air property based on the total estimated fair value of $48.1 million and the related carrying value. The impairment charge was attributed to declines in the estimated undiscounted cash flows which resulted in the carrying value not being recoverable. The fair value was based on the respective discounted future cash flows, using a discount rate of 14.5% and a terminal capitalization rate of 14.0% for the one enclosed retail property and a discount rate of 11.8% and a terminal capitalization rate of 11.3% for the open air property, respectively, which were determined using management's assessment of the property operating performance and general market conditions (Level 3 inputs). During the third quarter of 2020, we recorded an additional impairment charge of approximately $1.1 million related to a single tenant outparcel located in Topeka, Kansas (the "Topeka Property"). The impairment charge was attributed to a change in facts and circumstances when we decided to hold the asset for a shorter period, which resulted in the carrying value not being recoverable from the projected cash flows. The fair value was based on an executed purchase and sale agreement with an unaffiliated real estate investor, which was sold on December 9, 2020 (Level 1 input). During the second quarter of 2020, we recorded an impairment charge of approximately $23.8 million related to two enclosed retail properties based on the total estimated fair value of $12.6 million and the related carrying value. The impairment charge was attributed to declines in the estimated undiscounted cash flows which resulted in the carrying value not being recoverable. The fair value of each property was based on the respective discounted future cash flows of each property, using a discount rate range of 18.8% to 19.3% and a terminal capitalization rate range of 16.8% to 17.3%, which were determined using management's assessment of the property operating performance and general market conditions (Level 3 inputs). During the first quarter of 2020, we recorded an impairment charge of approximately $1.3 million related to vacant land at Georgesville Square, located in Columbus, Ohio and the Topeka Property. The impairment charges in both instances were due to changes in facts and circumstances when we decided to hold the assets for a shorter period which resulted in the carrying value not being recoverable from the projected cash flows. In the case of the vacant land at Georgesville Square, which was sold during the second quarter of 2020, the fair value was based on the sales price (Level 1 input). In the case of the Topeka Property, the fair value was based on general market conditions (Level 3 inputs). During the fourth quarter of 2019, the mortgage loan secured by Charlottesville Fashion Square, located in Charlottesville, Virginia was transferred to the special servicer (see Note 6 - "Indebtedness" for further details). As part of our quarterly assessment and in connection with the preparation of the financial statements included in this report, we considered this a triggering event and further shortened the estimated hold period, which resulted in the carrying value not being recoverable from the estimated undiscounted cash flows. The fair value of the property was based on the respective discounted estimated future cash flows, using a discount rate of 18.5% and a terminal capitalization rate of 15.5%, which were determined using management's assessment of the property operating performance and general market conditions (Level 3 inputs). We compared the estimated fair value of $19.8 million to the related carrying value of $26.1 million, which resulted in the recording of an impairment charge of approximately $6.3 million in the consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2019.

Investment in Unconsolidated En

Investment in Unconsolidated Entities, at Equity	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investment in Unconsolidated Entities, at Equity	Investment in Unconsolidated Entities, at Equity The Company's investment activity in unconsolidated real estate entities for the years ended December 31, 2020 and 2019 consisted of investments in the following joint ventures: • The O'Connor Joint Venture I This investment consists of a 51% noncontrolling interest held by the Company in a portfolio of five enclosed retail properties and related outparcels, consisting of the following: The Mall at Johnson City located in Johnson City, Tennessee; Pearlridge Center located in Aiea, Hawaii; Polaris Fashion Place®; Scottsdale Quarter® located in Scottsdale, Arizona; and Town Center Plaza (which consists of Town Center Plaza and the adjacent Town Center Crossing) located in Leawood, Kansas. We retain management, leasing, and development responsibilities for the O'Connor Joint Venture I. On December 20, 2019, the O'Connor Joint Venture I closed on the extension of the mortgage loan secured by The Mall at Johnson City. The extension was effective May 6, 2020 and extended the maturity of the mortgage loan to May 6, 2023, with an additional two one-year extension options available to the joint venture. The extension required a $5.0 million principal prepayment on May 6, 2020, in addition to funding certain reserve accounts of $10.0 million for future redevelopment and property improvements. On June 11, 2020, and in response to the COVID-19 pandemic, the O'Connor Joint Venture I executed a standstill agreement with the lender that extended the effective date of the extension to December 1, 2020, at which time the O'Connor Joint Venture I extended the maturity of the mortgage loan pursuant to the terms and payment requirements noted above. On April 11, 2018, the O'Connor Joint Venture I closed on the acquisition of the Sears department store located at Polaris Fashion Place® in connection with our acquisition of additional Sears department stores (see Note 4 - "Investment in Real Estate"). • The O'Connor Joint Venture II This investment consists of a 51% noncontrolling interest held by the Company in a portfolio of seven of the Company's retail properties and certain related outparcels, consisting of the following: The Arboretum, located in Austin, Texas; Arbor Hills, located in Ann Arbor, Michigan; Classen Curve and The Triangle at Classen Curve, each located in Oklahoma City, Oklahoma and Nichols Hills Plaza, located in Nichols Hills, Oklahoma (the "Oklahoma City Properties"); Gateway Centers, located in Austin, Texas; Malibu Lumber Yard, located in Malibu, California; Palms Crossing I and II, located in McAllen, Texas; and The Shops at Arbor Walk, located in Austin, Texas. We retain management, leasing, and development responsibilities for the properties included in the O'Connor Joint Venture II. • The Seminole Joint Venture This investment consisted of a 45% non-controlling interest held by the Company in Seminole Towne Center, an approximate 1.1 million square foot (unaudited) enclosed regional retail property located in the Orlando, Florida area. The Company had no effective financial interest in this property due to preferences. On March 13, 2020, the property held through this venture was transitioned to the lender pursuant to the terms within a deed-in-lieu of foreclosure agreement and all involvement between us and the related property ceased in connection with this transition. We recorded a gain of $15.4 million related to our cash distributions and losses in the Seminole Joint Venture, which is included in gain on disposition of interests in properties, net in the accompanying consolidated statements of operations and comprehensive loss for the year then ended. • Other Joint Venture The Company also holds an indirect 12.5% ownership interest in certain real estate through a joint venture with an unaffiliated third party. We do not have management, leasing and development responsibilities for this joint venture. Advances to the joint ventures totaled $0.3 million and $0.5 million as of December 31, 2020 and 2019, respectively, which are included in investment in and advances to unconsolidated entities, at equity in the accompanying consolidated balance sheets. Management deems this balance to be collectible and anticipates repayment within one year. The following table presents the combined statements of operations for our joint ventures for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Total revenues $ 211,468 $ 262,463 $ 262,410 Operating expenses 97,872 110,399 106,402 Depreciation and amortization 91,075 101,953 97,810 Operating income 22,521 50,111 58,198 Gain (loss) on sale of interests in property and unconsolidated entities, net 2,039 (1,288) 583 Gain on extinguishment of debt, net 15,698 — — Interest expense, taxes, and other, net (49,027) (61,523) (52,477) Net (loss) income from the Company's unconsolidated real estate entities $ (8,769) $ (12,700) $ 6,304 Our share of (loss) income from the Company's unconsolidated real estate entities $ (14,693) $ (1,499) $ 541 The following table presents the combined balance sheets of our joint ventures as of December 31, 2020 and 2019: December 31, 2020 2019 Assets: Investment properties at cost, net $ 1,829,481 $ 1,905,336 Construction in progress 50,794 38,280 Cash and cash equivalents 41,273 43,137 Tenant receivables and accrued revenue, net 45,877 31,238 Deferred costs and other assets (1) 295,121 301,133 Total assets $ 2,262,546 $ 2,319,124 Liabilities and Members’ Equity: Mortgage notes payable $ 1,214,679 $ 1,282,307 Accounts payable, accrued expenses, intangibles, and deferred revenues (2) 293,336 297,163 Total liabilities 1,508,015 1,579,470 Members’ equity 754,531 739,654 Total liabilities and members’ equity $ 2,262,546 $ 2,319,124 Our share of members’ equity, net $ 396,370 $ 384,332 Our share of members’ equity, net $ 396,370 $ 384,332 Advances and excess investment 19,969 17,339 Net investment in and advances to unconsolidated entities, at equity (3) $ 416,339 $ 401,671 (1) Includes value of acquired in-place leases and acquired above-market leases with a net book value of $68,028 and $79,457 as of December 31, 2020 and 2019, respectively. Additionally, includes ROU assets of $173,304 and $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2020 and 2019, respectively . (2) Includes the net book value of below market leases of $35,882 and $45,757 as of December 31, 2020 and 2019, respectively. Additionally, includes lease liabilities of $173,304 and $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2020 and 2019, respectively. (3) Includes $416,339 and $417,092 of investment in and advances to unconsolidated entities, at equity as of December 31, 2020 and 2019, respectively, and $0 and $15,421 of cash distributions and losses in unconsolidated entities, at equity as of December 31, 2020 and 2019, respectively. In response to the COVID-19 pandemic, the Company, on behalf of the O'Connor Joint Venture I and O'Connor Joint Venture II, executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Arbor Hills Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Arboretum, The Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Classen Curve & The Triangle at Classen Curve Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Gateway Centers Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Mall at Johnson City, The Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms ongoing Nichols Hills Plaza Interest and principal Interest and principal 3 months ended July 2020 Due at maturity (Jan. 1, 2023) Repayment terms satisfied Polaris Fashion Place Interest and principal Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Town Center Crossing Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Town Center Plaza Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Scottsdale Quarter (Blocks K & M) Interest only Interest 3 months ended July 2020 Commenced August 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied 1 Maturity dates noted include any applicable extension options available to the borrower.

Indebtedness

Indebtedness	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Indebtedness	Indebtedness Mortgage Debt Total mortgage indebtedness at December 31, 2020 and 2019 was as follows: 2020 2019 Face amount of mortgage loans $ 1,104,375 $ 1,117,242 Fair value adjustments, net 1,685 3,463 Debt issuance cost, net (4,407) (5,097) Carrying value of mortgage loans $ 1,101,653 $ 1,115,608 The mortgage debt had weighted average interest and maturity of 4.68% and 3.6 years at December 31, 2020 and 4.61% and 4.5 years at December 31, 2019. A roll forward of mortgage indebtedness from December 31, 2019 to December 31, 2020 is summarized as follows: Balance at December 31, 2019 $ 1,115,608 Debt amortization payments (12,867) Issuance costs incurred upon debt modifications (744) Amortization of fair value and other adjustments (1,778) Amortization of debt issuance costs 1,434 Balance at December 31, 2020 $ 1,101,653 In response to the COVID-19 pandemic, the Company executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Forest Plaza, Lakeline Plaza, Muncie Towne Plaza, and White Oaks Plaza Interest only Interest 6 months ended October 2020 6 months commenced November 2020 Repayment terms ongoing Southgate Mall Interest only Interest 3 months ended July 2020 Due at maturity (Sept. 27, 2023) Repayment terms satisfied Town Center at Aurora Interest and principal Interest and principal 6 months ended October 2020 Commenced November 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied Westminster Mall Interest and principal Interest and principal 3 months ended August 2020, paid from escrows Not applicable Repayment terms satisfied Canyon View Marketplace Interest and principal Interest and principal 3 months ended July 2020 6 months commenced August 2020 Repayment terms satisfied Grand Central Mall Interest and principal Interest and principal 3 months ended August 2020 12 months commenced September 2020, but outstanding payments due at maturity (July 6, 2021) Repayment terms ongoing Lincolnwood Town Center Interest and principal Interest and principal 6 months ended October 2020 12 months commenced November 2020, but outstanding payments due at maturity (April 1, 2021) Repayment terms ongoing 1 Maturity dates noted include any applicable extension options available to the borrower. 2020 Activity In connection with the forbearance agreement executed on the mortgage note payable secured by Grand Central Mall, located in Parkersburg, West Virginia, the maturity date of the mortgage note payable was extended one year to July 6, 2021. On April 3, 2020, the Company exercised the third of three options to extend the maturity of the $65.0 million term loan secured by Weberstown Mall, located in Stockton, California, for one year. The extended maturity date is June 8, 2021. On February 14, 2020, the Company exercised the second of two options to extend the maturity of the $51.0 million mortgage note payable secured by Town Center at Aurora, located in Aurora, Colorado, for one year. The extended maturity is April 1, 2021. Additionally, as part of the aforementioned forbearance agreement, the Company was granted an additional one year extension option, which would extend the maturity to April 1, 2022. The extension option is subject to continued compliance with the terms of the mortgage agreement. 2019 Activity On December 18, 2019, the $49.5 million mortgage on West Ridge, was canceled upon the lender foreclosure (see "Covenants" section below for additional details). On September 16, 2019, an affiliate of WPG Inc. repaid its existing $47.2 million, 7.50% fixed rate cross-defaulted and cross-collateralized pool of mortgages that encumbered Forest Plaza, located in Rockford, Illinois; Lakeline Plaza, located in Cedar Park, Texas; Muncie Towne Plaza, located in Muncie, Indiana; and White Oaks Plaza, located in Springfield, Illinois, which was scheduled to mature on October 16, 2019. Simultaneously, the Company closed on a new $117.0 million, 3.67% fixed rate cross-defaulted and cross-collateralized pool of mortgages encumbering the same properties. The new loan requires monthly interest-only payments and will mature on October 1, 2029. On July 1, 2019, the $45.2 million mortgage on Towne West Square was canceled upon the lender foreclosure (see "Covenants" section below for additional details). On April 16, 2019, an affiliate of WPG Inc. closed on a $180.0 million non-recourse mortgage note payable with a ten-year term and a fixed rate of 4.86% secured by Waterford Lakes Town Center, located in Orlando, Florida. The mortgage note payable requires monthly principal and interest payments and will mature on May 6, 2029. The net proceeds were primarily used to reduce corporate debt. On April 8, 2019, the Company exercised the second of three options to extend the maturity date of the $65.0 million term loan secured by Weberstown Mall for one year. On April 1, 2019, the Company exercised the first of two options to extend the maturity of the $52.0 million mortgage note payable on Town Center at Aurora ® for one year. Corporate Debt On February 15, 2021, we deferred the semi-annual interest payment on the Senior Notes. See Note 12 - "Subsequent Events" and Note 2 - "Basis of Presentation and Principles for Consolidation" for additional details. On August 13, 2020, the Company entered into amendments to our Facility (as defined below), December 2015 Term Loan (as defined below), and the $65.0 million term loan secured by Weberstown Mall. The amendments, totaling $1.4 billion of consolidated indebtedness, provide certain covenant relief through the third quarter of 2021 in exchange for partial collateralization of certain unencumbered consolidated properties, which can be released starting in the third quarter of 2021 if certain financial conditions are met. The partial collateralization has resulted in temporary security of approximately $1.0 billion of debt that was previously unsecured. The stated interest rates, depending on total leverage levels, ranges from LIBOR plus 2.00% to 2.60%, with a LIBOR floor of 0.50%. Prior to the amendments, the stated interest rates, depending on total leverage levels, ranged from LIBOR plus 1.80% to 2.35%, with no LIBOR floor. The amendments were accounted for as debt modifications, and the Company capitalized approximately $13.0 million of issuance costs, which are being amortized to interest expense over the respective remaining debt term. On June 22, 2020, in order to accelerate repayment and bolster liquidity, the Company accepted the terms of a reduced payoff of the $55.0 million bridge financing provided in connection with the failed sale and leaseback noted below. In exchange for settling the bridge financing, the Company received $30.0 million in cash and the buyer/lessor reduced monthly payments that we owe under the leases totaling approximately $15.7 million over 27 months, commencing July 1, 2020. The present value of the reduced rent payments was reclassified from note receivable to other indebtedness, which is presented net of the accretion adjustment in the table below, and the Company recorded an impairment on the note receivable of approximately $11.2 million in connection with the extinguishment. The proceeds were used for general corporate purposes. On February 28, 2020, the Company redeemed the Exchange Notes in advance of the April 1, 2020 maturity date. The repayment was funded utilizing borrowings on the Revolver. During the year ended December 31, 2019, the Company retired $29.1 million outstanding principal on the Senior Notes due 2024 and recognized a gain of approximately $1.2 million, which is recorded in gain on extinguishment of debt, net in the accompanying consolidated statements of operations and comprehensive (loss) income for the period then ended. The following table identifies our total unsecured debt outstanding at December 31, 2020 and December 31, 2019: December 31, December 31, Notes payable: Face amount - the Exchange Notes (1) $ — $ 250,000 Face amount - Senior Notes due 2024 (2) 720,900 720,900 Debt discount, net (6,338) (7,864) Debt issuance costs, net (4,086) (5,470) Total carrying value of notes payable $ 710,476 $ 957,566 Term loans: (7) Face amount - Term Loan (3)(4) $ 350,000 $ 350,000 Face amount - December 2015 Term Loan (5) 340,000 340,000 Debt issuance costs, net (8,437) (3,358) Total carrying value of term loans $ 681,563 $ 686,642 Revolving credit facility: (3)(6) Face amount $ 647,000 $ 207,000 Debt issuance costs, net (7,024) (2,855) Total carrying value of revolving credit facility $ 639,976 $ 204,145 Other indebtedness: (8) Anticipated settlement amount $ 109,285 $ 109,285 Debt issuance costs, net (1,509) (1,561) Future accretion, net (19,969) (10,123) Total carrying value of other indebtedness $ 87,807 $ 97,601 (1) The Exchange Notes were issued at a 0.028% discount and bore interest at 3.850% per annum. (2) The Senior Notes due 2024 were issued at a 1.533% discount, bore interest at 5.950% per annum through August 14, 2019, at which time the interest rate increased to 6.450% per annum. The Senior Notes due 2024 mature on August 15, 2024. (3) The revolving credit facility, or "Revolver" and term loan, or "Term Loan" are collectively known as the "Facility." (4) The Term Loan bears interest at the greater of one-month LIBOR or 0.50% plus 2.60% per annum and will mature on December 30, 2022. We have interest rate swap agreements totaling $250.0 million, which effectively fix the interest rate on a portion of the Term Loan at 5.71% per annum through June 30, 2021. At December 31, 2020, the applicable interest rate on the unhedged portion of the Term Loan was 0.50% plus 2.60% or 3.10%. (5) The December 2015 Term Loan bears interest at the greater of one-month LIBOR or 0.50% plus 2.60% per annum and will mature on January 10, 2023. We have interest rate swap agreements totaling $340.0 million, which effectively fix the interest rate at 4.67% per annum through maturity. (6) The Revolver provides borrowings on a revolving basis up to $650.0 million, bears interest at the greater of one-month LIBOR or 0.50% plus 2.25% and will initially mature on December 30, 2021, subject to two six month extensions available at our option subject to compliance with terms of the Facility and payment of a customary extension fee. At December 31, 2020, we had an aggregate available borrowing capacity of $3.0 million under the Revolver. At December 31, 2020, the applicable interest rate on the Revolver was 0.50% plus 2.25%, or 2.75%. The interest rate on the Revolver could vary in the future based upon changes to the Company's credit ratings and leveraged levels. (7) While we have interest rate swap agreements in place that fix the LIBOR portion of the rates as noted above, the spread over LIBOR could vary in the future based upon changes to the Company's credit ratings and leveraged levels. (8) Represents the financial liability associated with our October 2019 failed sale and leaseback of land at Edison Mall, located in Fort Myers, Florida; Great Lakes Mall, located in Mentor, Ohio; Irving Mall, located in Irving, Texas; and Jefferson Valley Mall, located in Yorktown Heights, New York (collectively, the "Properties"). The master ground lease has a 99-year term and includes fixed annual payments at an initial annualized rate of 7.4%, with annual rent escalators over the aforementioned term. The anticipated settlement amount represents the year 30 repurchase option price of $109.3 million to reacquire the fee interest in the land at the Properties, to which the carrying value of the financial liability is being accreted to, through interest expense, during the repurchase period. Expense is being recognized utilizing an effective interest rate of 8.52% during the repurchase period. The following table presents the borrowings and paydowns on the Revolver during the years ended December 31, 2020 and December 31, 2019: 2020 2019 Beginning Balance $ 207,000 $ 290,000 Borrowings 471,000 267,000 Paydowns (31,000) (350,000) Ending Balance $ 647,000 $ 207,000 During 2020, borrowings under the Revolver were primarily used to redeem the Exchange Notes, for ongoing redevelopment efforts and to bolster liquidity as a result of the COVID-19 pandemic. Paydowns of outstanding borrowings were primarily funded using proceeds from property dispositions (see Note 4 - "Investment in Real Estate") and cash flow from operations. During 2019, borrowings under the Revolver were primarily used for ongoing redevelopment efforts and general corporate purposes. Paydowns of outstanding borrowings were funded using proceeds from property dispositions (see Note 4 - "Investment in Real Estate"), new mortgage activity as discussed above and cash flow from operations. Covenants Our corporate debt agreements contain financial and other covenants. If we were to fail to comply with these covenants, after the expiration of the applicable cure periods, the debt maturity could be accelerated or other remedies could be sought by the lender including adjustments to the applicable interest rate. As of December 31, 2020, the Company was in compliance with all applicable covenants of its corporate debt (see Note 12 - "Subsequent Events" for additional details). The total balance of mortgages was approximately $1.1 billion as of December 31, 2020. At December 31, 2020, certain of our consolidated subsidiaries were the borrowers under 20 non-recourse loans and two full-recourse loans secured by mortgages encumbering 24 properties, including one separate pool of cross-defaulted and cross-collateralized mortgages encumbering a total of four properties. Under these cross-default provisions, a default under any mortgage included in the cross-defaulted pool may constitute a default under all mortgages within that pool and may lead to acceleration of the indebtedness due on each property within the pool. Certain of our secured debt instruments contain financial and other non-financial covenants which are specific to the properties which serve as collateral for that debt. Our existing non-recourse mortgage loans generally prohibit our subsidiaries that are borrowers thereunder from incurring additional indebtedness, subject to certain customary and limited exceptions. In addition, certain of these instruments limit the ability of the applicable borrower's parent entity from incurring mezzanine indebtedness unless certain conditions are satisfied, including compliance with maximum loan to value ratio and minimum debt service coverage ratio tests. Further, under certain of these existing agreements, if certain cash flow levels in respect of the applicable mortgaged property (as described in the applicable agreement) are not maintained for at least two consecutive quarters, the lender could accelerate the debt and enforce its right against its collateral. If the borrower fails to comply with these covenants, the lender could accelerate the debt and enforce its right against their collateral. On May 26, 2020, we received a notice of default letter, dated May 14, 2020, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $40.9 million mortgage loan secured by Port Charlotte Town Center, located in Port Charlotte, Florida. The notice was issued by the special servicer because the borrower elected to not pay the May 2020 mortgage payment due to disruption caused by COVID-19. The borrower has initiated discussions with the special servicer regarding this non-recourse loan and is considering various options. No further default notice has been issued by the special servicer to the borrower regarding this obligation. On May 22, 2020, we received a notice of default letter, dated May 21, 2020, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $47.3 million mortgage loan secured by Lincolnwood Town Center, located in Lincolnwood, Illinois. The notice was issued by the special servicer because the borrower elected to not pay the May 2020 mortgage payment due to disruption caused by COVID-19. On September 14, 2020, the borrower executed a forbearance agreement, effective May 1, 2020, which deferred required debt service payments from May 2020 through October 2020. The Company continues to manage and lease the property (see Note 12 - "Subsequent Events" for additional details). On February 21, 2020, we received a letter, dated that same date, from the lender notifying the borrower, a consolidated subsidiary of WPG L.P., that the $33.1 million mortgage loan secured by Muncie Mall, located in Muncie, Indiana, was transferred to special servicing because the borrower notified the lender that future projected cash flows will be insufficient to ensure future compliance with the mortgage loan due to the loss of certain tenants. The borrower has initiated discussions with the special servicer regarding this non-recourse loan and is considering various options. On April 14, 2020, the Company received notification that a receiver had been appointed to manage and lease the property. An affiliate of the Company continues to hold title to the property. On November 5, 2019, we received a letter, dated October 30, 2019, from the lender notifying the borrower, a consolidated subsidiary of WPG L.P., that the $45.1 million mortgage loan secured by Charlottesville Fashion Square was transferred to special servicing because the borrower notified the lender that future projected cash flows will be insufficient to ensure future compliance with the mortgage loan due to the loss of certain tenants. The borrower has initiated discussions with the special servicer regarding this non-recourse loan and is considering various options. On March 17, 2020, we received notification that a receiver had been appointed to manage, insure, and lease the property. An affiliate of the Company still holds title to the property. In addition and in response to the COVID-19 pandemic, separate borrowers, each a consolidated subsidiary of WPG L.P., elected to not make monthly debt service payments beginning in April 2020 on the $17.2 million mortgage loan secured by Anderson Mall, located in Anderson, South Carolina, and the $36.1 million mortgage loan secured by Oak Court Mall & Offices, located in Memphis, Tennessee. The borrowers continue to have discussions with the special servicers of each non-recourse loan and are considering various options (see Note 12 - "Subsequent Events" for additional details). On November 19, 2018, we received a notice of default letter, dated November 15, 2018, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $49.5 million mortgage loan secured by West Ridge. The notice was issued by the special servicer because the borrower did not make certain reserve payments or deposits as required by the loan agreement for the aforementioned loan. On December 18, 2019, an affiliate of the Company transitioned the property to the lender. On May 29, 2018, we received a notice of default letter, dated May 25, 2018, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $94.0 million mortgage loan secured by Rushmore Mall. The notice was issued by the special servicer because the borrower notified the lender that there were insufficient funds to ensure future compliance with the mortgage loan due to the loss of certain tenants. On October 23, 2018, an affiliate of the Company transitioned the property to the lender. On April 11, 2018, we received a notice of default letter, dated April 6, 2018, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $45.2 million mortgage loan secured by Towne West Square. The notice was issued by the special servicer because the borrower did not make certain reserve payments or deposits as required by the loan agreement for the aforementioned loan. On July 1, 2019, an affiliate of the Company transitioned the property to the lender. At December 31, 2020, management believes the applicable borrowers under our other non-recourse mortgage loans were in compliance with all covenants where non-compliance could individually, or giving effect to applicable cross-default provisions in the aggregate, have a material adverse effect on our financial condition, results of operations or cash flows. A Chapter 11 filing could trigger secured mortgage defaults on various mortgages. The Company has assessed each of the defaulted properties, for which the Company still holds title, for impairment indicators as part of our quarterly assessment. Refer to Note 4 - "Investment in Real Estate" for further details. Gain on Extinguishment of Debt, Net During the year ended December 31, 2019, the Company recognized a net gain of $62.5 million related to the $94.7 million mortgage debt cancellation and ownership transfer of West Ridge and Towne West Square, which is included in gain on extinguishment of debt, net in the consolidated statements of operations and comprehensive (loss) income for the year then ended. During the year ended December 31, 2018, the Company recognized a net gain of $51.4 million related to the $94.0 million mortgage debt cancellation and ownership transfer of Rushmore, which is included in gain on extinguishment of debt, net in the consolidated statements of operations and comprehensive (loss) income for the year then ended. Debt Maturity and Cash Paid for Interest Scheduled principal repayments on indebtedness (including extension options) as of December 31, 2020 are as follows: 2021 $ 308,729 2022 1,180,870 2023 406,414 2024 985,474 2025 3,417 Thereafter 386,656 Total principal maturities 3,271,560 Note discount (6,338) Fair value adjustments, net 1,685 Debt issuance costs, net (25,463) Future accretion of other indebtedness, net (19,969) Total mortgages and corporate indebtedness $ 3,221,475 Cash paid for interest for the years ended December 31, 2020, 2019 and 2018 was $143,615, $149,775 and $141,641, respectively. Fair Value of Debt The carrying values of our variable-rate loans approximate their fair values. We estimate the fair values of fixed-rate mortgages and fixed-rate corporate debt (including variable-rate corporate debt swapped to fixed-rate and our other indebtedness, as discussed above) using cash flows discounted at current borrowing rates or Level 2 inputs. We estimate the fair values of consolidated fixed-rate unsecured notes payable using Level 1 quoted market prices, or, if no quoted market prices are available, we use quoted market prices for securities with similar terms and maturities or Level 2 inputs. The book value and fair value of these financial instruments along with the related discount rate assumptions as of December 31, 2020 and 2019 are summarized as follows: 2020 2019 Book value of fixed- rate mortgages (1) $ 1,039,375 $ 1,052,242 Fair value of fixed-rate mortgages $ 1,057,727 $ 1,062,205 Weighted average discount rates assumed in calculation of fair value for fixed-rate mortgages 3.79 % 4.24 % Book value of fixed-rate corporate debt (1) $ 1,420,185 $ 1,660,062 Fair value of fixed-rate corporate debt $ 1,203,079 $ 1,673,105 Weighted average discount rates assumed in calculation of fair value for fixed-rate corporate debt 10.22 % 6.03 % (1) Excludes deferred financing fees and applicable debt discounts.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its debt funding and through the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future uncertain cash amounts, the value of which are determined by interest rates. The Company's derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company's known or expected cash payments related to the Company's borrowings. Cash Flow Hedges of Interest Rate Risk The Company's objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps or caps as part of its interest rate risk management strategy. Interest rate swaps involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company may also enter into forward starting swaps or treasury lock agreements to set the effective interest rate on a planned fixed-rate financing. In a forward starting swap or treasury lock agreement that the Company cash settles in anticipation of a fixed rate financing or refinancing, the Company will receive or pay an amount equal to the present value of future cash flow payments based on the difference between the contract rate and market rate on the settlement date. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in other comprehensive income ("OCI") or other comprehensive loss (“OCL”) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Net realized gains or losses resulting from derivatives that were settled in conjunction with planned fixed-rate financings or refinancings continue to be included in accumulated other comprehensive income ("AOCI") during the term of the hedged debt transaction. Amounts reported in AOCI relate to derivatives that will be reclassified to interest expense as interest payments are made on the Company's variable-rate debt. Realized gains or losses on settled derivative instruments included in AOCI are recognized as an adjustment to income over the term of the hedged debt transaction. During the next twelve months, the Company estimates that an additional $9.0 million will be reclassified as an increase to interest expense. On March 29, 2019, the Company entered into one two-year swap, totaling $52.0 million with an effective date of April 1, 2019, pursuant to the terms of the extension option executed on the mortgage note payable loan at Town Center at Aurora ® . As of December 31, 2020, the Company had 11 outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk with a current notional value of $640.3 million. The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the consolidated balance sheet as of December 31, 2020 and 2019: Derivatives designated as hedging instruments: Balance Sheet December 31, 2020 December 31, 2019 Interest rate products Liability Derivatives Accounts payable, accrued expenses, intangibles and deferred revenues $ 14,380 $ 6,592 There were no asset derivative instruments at December 31, 2020 and 2019. The liability derivative instruments were reported at their fair value $14,380 and $6,592 at December 31, 2020 and 2019, respectively, with a corresponding adjustment to OCL for the unrealized gains and losses (net of noncontrolling interest allocation). Over time, the unrealized gains and losses held in AOCL will be reclassified to earnings. This reclassification will correlate with the recognition of the hedged interest payments in earnings. The table below presents the effect of the Company's derivative financial instruments on the consolidated statements of operations and comprehensive (loss) income for the years ended December 31, 2020, 2019 and 2018: Derivatives in Cash Flow Hedging Relationships Location of Gain or (Loss) Recognized in Income on Derivatives For the Year Ended December 31, 2020 2019 2018 Amount of (Loss) or Gain Recognized in OCL on Derivative Interest expense $ (17,832) $ (13,363) $ 1,054 Amount of Loss or (Gain) Reclassified from AOCL into Income Interest expense $ 10,015 $ (739) $ (2,338) The table below presents the effect of the Company's derivative financial instruments on the consolidated statements of operations for the years ended December 31, 2020, 2019 and 2018: Effect of Cash Flow Hedges on Consolidated Statements of Operations For the year ended December 31, 2020 2019 2018 Total interest expense presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded $ (156,752) $ (153,382) $ (141,987) Amount of loss or (gain) reclassified from accumulated other comprehensive loss into interest expense $ 10,015 $ (739) $ (2,338) Credit Risk-Related Contingent Features The Company has agreements with each of its derivative counterparties that contain a provision that if the Company either defaults or is capable of being declared in default on any of its consolidated indebtedness, then the Company could also be declared in default on its derivative obligations. The Company has agreements with its derivative counterparties that incorporate the loan covenant provisions of the Company's indebtedness with a lender affiliate of the derivative counterparty. Failure to comply with the loan covenant provisions would result in the Company being in default on any derivative instrument obligations covered by the agreement. As of December 31, 2020, the fair value of derivatives in a net liability position, plus accrued interest but excluding any adjustment for nonperformance risk, related to these agreements was $14,380. As of December 31, 2020, the Company has not posted any collateral related to these agreements. The Company is not in default with any of these provisions as of December 31, 2020. If the Company had breached any of these provisions at December 31, 2020, it would have been required to settle its obligation under these agreements at their termination value of $14,380. Fair Value Considerations Currently, the Company uses interest rate swaps and caps to manage its interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves, foreign exchange rates, and implied volatilities. Based on these inputs the Company has determined that its interest rate swap and cap valuations are classified within Level 2 of the fair value hierarchy. To comply with the provisions of Topic 820, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty's nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of December 31, 2020 and 2019, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy. The tables below presents the Company’s net assets and (liabilities) measured at fair value as of December 31, 2020 and 2019 aggregated by the level in the fair value hierarchy within which those measurements fall: Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (Level 3) Balance at December 31, 2020 Derivative instruments, net $ — $ (14,380) $ — $ (14,380) Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (Level 3) Balance at December 31, 2019 Derivative instruments, net $ — $ (6,592) $ — $ (6,592)

Equity

Equity	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Equity	Equity Preferred Stock Series H Cumulative Redeemable Preferred Stock On January 15, 2015, WPG Inc. issued 4,000,000 shares of 7.5% Series H Cumulative Redeemable Preferred Stock (the "Series H Preferred Shares"). Dividends accrue quarterly at an annual rate of 7.5% per share. WPG Inc. can redeem this series, in whole or in part, at a redemption price of $25.00 per share, plus accumulated and unpaid dividends. WPG L.P. issued to WPG Inc. a like number of preferred units as consideration for the Series H Preferred Shares and can redeem this series, in whole or in part, when WPG Inc. can redeem the Series H Preferred Shares at like terms. All shares remain issued and outstanding as of December 31, 2020 and 2019. Series I Cumulative Redeemable Preferred Stock On January 15, 2015, WPG Inc. issued 3,800,000 shares of 6.875% Series I Cumulative Redeemable Preferred Stock (the "Series I Preferred Shares"). Dividends accrue quarterly at an annual rate of 6.875% per share. WPG Inc. can redeem this series, in whole or in part, at a redemption price of $25.00 per share, plus accumulated and unpaid dividends. WPG L.P. issued to WPG Inc. a like number of preferred units as consideration for the Series I Preferred Shares and can redeem this series, in whole or in part, when WPG Inc. can redeem the Series I Preferred Shares at like terms. All shares remain issued and outstanding as of December 31, 2020 and 2019. Reverse-Stock Split On December 17, 2020, WPG Inc.'s common shareholders approved an amendment to the Company's Amended and Restated Articles of Incorporation that effectuated a one-for-nine reverse stock split of WPG Inc.’s common shares (the "Split"). As a result of the Split, the number of outstanding common shares of the Company was reduced from approximately 187.4 million to approximately 21.0 million. In addition, all outstanding WPG L.P. common operating units and all outstanding equity awards under the Company's equity plans were also adjusted by the same conversion ratio relating to the Split. The implementation of the Split increased the per share trading price of WPG Inc.’s common shares and satisfied the continued listing criteria set forth in Section 802.01C of the Listed Company Manual of the NYSE and cured the noncompliance notification received by WPG Inc. on April 28, 2020, for which we received notification from the NYSE on January 4, 2021 that the Company was no longer in violation. Unless otherwise noted, all common share/unit and per share/unit information contained herein has been restated to reflect the Split as if it had occurred as of the beginning of the earliest period presented. Exchange Rights Subject to the terms of the limited partnership agreement of WPG L.P., limited partners in WPG L.P. have, at their option, the right to exchange all or any portion of their units for shares of WPG Inc. common stock on a one‑for‑one basis or cash, as determined by WPG Inc. Therefore, the common units held by limited partners are considered by WPG Inc. to be share equivalents and classified as noncontrolling interests within permanent equity, and classified by WPG L.P. as permanent equity. The amount of cash to be paid if the exchange right is exercised and the cash option is selected will be based on the market value of WPG Inc.'s common stock as determined pursuant to the terms of the WPG L.P. Partnership Agreement. During the year ended December 31, 2020, WPG Inc. issued 2,631 shares of common stock to certain limited partners of WPG L.P. in exchange for an equal number of units pursuant to the WPG L.P. Partnership Agreement. This transaction increased WPG Inc.’s ownership interest in WPG L.P. There were no similar transactions during the years ended December 31, 2019 and 2018. At December 31, 2020, WPG Inc. had reserved 3,828,590 shares of common stock for possible issuance upon the exchange of units held by limited partners. The holders of the Series I-1 Preferred Units have, at their option, the right to have their units purchased by WPG L.P. subject to the satisfaction of certain conditions. Therefore, the Series I-1 Preferred Units are classified as redeemable noncontrolling interests outside of permanent equity. Share Based Compensation On May 28, 2014, the WPG Inc. Board of Directors (the "Board") adopted the Washington Prime Group, L.P. 2014 Stock Incentive Plan (the "2014 Plan"), which permitted the Company to grant awards to current and prospective directors, officers, employees and consultants of the Company or any affiliate. An aggregate of 1,111,112 shares of common stock were reserved for issuance, with a maximum number of awards to be granted to a participant in any calendar year of 55,556 shares/units. On May 16, 2019, the common shareholders of WPG Inc. approved the Washington Prime Group, L.P. 2019 Stock Incentive Plan (the "2019 Plan"), which replaced the 2014 Plan with respect to the issuance of new awards. The Board and its Compensation Committee (the "Committee") previously approved and adopted the 2019 Plan, subject to WPG Inc. common shareholder approval, during the Board and Committee's regular meetings in February 2019. An aggregate of 810,000 shares of common stock are reserved for issuance, excluding carryover shares from the 2014 Plan. Awards may be in the form of stock options, stock appreciation rights, restricted stock, restricted stock units ("RSUs") or other stock-based awards in WPG Inc., long term incentive units ("LTIP units" or "LTIPs") or performance units in WPG L.P. The 2019 Plan terminates on May 16, 2029. Long Term Incentive Awards Annual Long-Term Incentive Awards During the years ended December 31, 2020, 2019 and 2018, the Company approved the terms and conditions of the 2020, 2019, and 2018 annual awards (the "2020 Annual Long-Term Incentive Awards," "2019 Annual Long-Term Incentive Awards," and "2018 Annual Long-Term Incentive Awards," respectively) for certain executive officers and employees of the Company. Under the terms of the awards program, each participant is provided the opportunity to receive (i) time-based RSUs and (ii) performance-based stock units ("PSUs"). RSUs represent a contingent right to receive one WPG Inc. common share for each vested RSU. RSUs will vest in one-third installments on each annual anniversary of the respective Grant Date (as referenced below), subject to the participant's continued employment with the Company through each vesting date and the participant's continued compliance with certain applicable covenants. During the service period, dividend equivalents will be paid with respect to the RSUs corresponding to the amount of any dividends paid by WPG Inc. to WPG Inc.'s common shareholders for the applicable dividend payment dates. Compensation expense is recognized on a straight-line basis over the three years vesting term, except in instances that result in accelerated vesting due to severance arrangements. With respect to PSUs awarded in connection with the annual awards, actual PSUs earned may range from 0%-150% of the PSUs allocated to the award recipient, based on the WPG Inc.'s total shareholder return ("TSR") compared to a peer group based on companies with similar assets and revenue over a three-year performance period that commenced on the respective Grant Date (as referenced below). During the performance period, dividend equivalents corresponding to the amount of any regular cash dividends paid by WPG Inc. to WPG Inc.’s common shareholders for the applicable dividend payment dates will accrue and be deemed reinvested in additional PSUs, which will be settled in common shares at the same time and only to the extent that the underlying PSU is earned and settled in common shares. Payout of the PSUs is also subject to the participant’s continued employment with the Company through the end of the performance period. The PSUs were valued through the use of a Monte Carlo model and the related compensation expense is recognized over the three-year performance period, except in instances that result in accelerated amortization due to severance arrangements. The following table summarizes the issuance of the 2020 Annual Long-Term Incentive Awards, 2019 Annual Long-Term Incentive Awards, and 2018 Annual Long-Term Incentive Awards, respectively: 2020 Annual Long-Term Incentive Awards 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards Grant Date February 25, 2020 February 20, 2019 February 20, 2018 RSUs issued 152,610 63,581 65,223 Grant date fair value per unit $21.69 $51.93 $54.90 PSUs issued 152,610 63,581 65,223 Grant date fair value per unit $15.66 $44.82 $43.92 The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: 2020 Annual Long-Term Incentive Awards 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards Risk free rate 1.16% 2.45% 2.39% Volatility 41.63% 26.53% 24.70% During the year ended December 31, 2020, the performance period related to PSUs awarded in conjunction with the 2017 annual awards ended. There was no payout as the Company's TSR rank did not exceed the minimum required threshold for payout and 29,204 PSUs were forfeited. Other Compensation Arrangements On August 2, 2019, in connection with the execution of an amended and restated employment agreement, the Committee granted Mr. Louis G. Conforti, the Company's Chief Executive Officer and Director, a retention award of 55,556 RSUs, with a grant date fair value of $1.8 million, and 55,556 PSUs, at target with a grant date fair value of $1.2 million, for his continued service through August 2, 2024. RSUs represent a contingent right to receive one WPG Inc. common share for each vested RSU. Dividend equivalents corresponding to the amount of any regular cash dividends paid by WPG Inc. to WPG Inc.’s common shareholders for the applicable dividend payment dates will accrue and be deemed reinvested in additional RSUs, which themselves will accrue dividend equivalents, and will be paid out if and when the underlying RSU vests. The RSUs will vest in one-third installments on August 2, 2022, 2023, and 2024, subject to Mr. Conforti's continued employment through such applicable date. Compensation expense is recognized on a straight-line basis over the five year vesting term. Actual PSUs earned may range from 0%-200% of the PSUs awarded based on WPG Inc.'s annualized TSR over a three year performance period that commenced on August 2, 2019, provided Mr. Conforti's continued employment through the vesting date. Dividend equivalents corresponding to the amount of any regular cash dividends paid by WPG Inc. to WPG Inc.’s common shareholders for the applicable dividend payment dates will accrue and be deemed reinvested in additional PSUs, which themselves will accrue dividend equivalents, and will be earned when and if the underlying PSU vests. Earned PSUs, if any, vest in one-third installments on August 2, 2022, 2023, and 2024. The PSUs were valued through the use of a Monte Carlo model and the related compensation expense is recognized over the five years term on a graded-vesting basis based on the applicable vesting period of the PSUs. The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: August 2, 2019 PSU Grant Risk free rate 1.66% Volatility 37.27% WPG Performance-Based Stock Unit Awards The WPG PSUs primarily relate to the performance-based component of the annual long-term incentive awards issued to certain executive officers and employees of the Company, in addition to awards issued under employment agreements (see "Annual Long-Term Incentive Awards" and "Other Compensation Arrangements" sections above for additional details). A summary of the status of the WPG PSUs at December 31, 2020 and changes during the year are presented below: Activity for the Year Ended December 31, 2020 PSUs Weighted Outstanding unvested at beginning of year 195,263 $ 41.40 PSUs granted 152,610 $ 15.66 PSUs forfeited (29,204) $ 69.48 Outstanding unvested at end of year 318,669 $ 26.50 WPG RSU Awards The Company issues RSUs to certain executive officers, employees, and non-employee directors of the Board. During the years ended December 31, 2020, 2019 and 2018, the Company issued 289,415, 156,303, and 90,273 RSUs, respectively. Of the 289,415 RSUs issued in 2020, 152,610 RSUs with a fair value of $3.3 million relates to the annual long-term incentive award issuances that occurred in February 2020 (see "Annual Long-Term Incentive Awards" section above). Of the 156,303 RSUs issued in 2019, 55,556 RSUs with a fair value of $1.8 million relates to Mr. Conforti's August 2, 2019 special grant and 63,581 RSUs with a fair value of $3.3 million relates to the annual long-term incentive award issuances that occurred in February 2019 (see "Annual Long-Term Incentive Awards" section above). Of the 90,273 RSUs issued in 2018, 65,223 RSUs with a fair value of $3.6 million relates to the annual long-term incentive award issuances that occurred in February 2018 (see "Annual Long-Term Incentive Awards" section above). The RSUs are service-based awards and the related fair value is expensed over the applicable service periods, except in instances that result in accelerated vesting due to severance arrangements. The amount of compensation related to the unvested RSUs that we expect to recognize in future periods is $5.6 million over a weighted average period of 1.7 years. A summary of the status of the WPG RSUs at December 31, 2020 and changes during the year are presented below: Activity for the Year Ended December 31, 2020 RSUs Weighted Outstanding unvested at beginning of year 209,146 $ 47.86 RSUs granted 289,415 $ 14.36 RSUs vested (85,211) $ 55.28 RSUs forfeited (21,354) $ 9.85 Outstanding unvested at end of year 391,996 $ 23.59 The weighted average grant date fair value per share of RSUs granted during the years ended December 31, 2020, 2019 and 2018 was $14.36, $42.21, and $56.52, respectively. The total fair value of the RSUs vested during the years ended December 31, 2020, 2019 and 2018 was $4,711, $8,254, and $3,320, respectively. Stock Options Options granted under the Company's Plan generally vest over a three years period, with options exercisable at a rate of 33.3% per annum beginning with the first anniversary of the grant date. These options were valued using the Black-Scholes pricing model and the expense associated with these options are amortized over the requisite vesting period. There were no options granted during the years ended December 31, 2020, 2019 and 2018. A summary of the status of the Company's option plans at December 31, 2020 and changes during the year are listed below: Activity for the Year Ended December 31, 2020 Stock Options Weighted Outstanding at beginning of year 66,941 $ 18.18 Options forfeited/expired (3,498) $ 44.28 Outstanding at end of year 63,443 $ 16.74 The following table summarizes information regarding the options outstanding at December 31, 2020: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $107.73 3,393 0.3 $107.73 3,393 0.3 $107.73 $114.03 5,388 1.4 $114.03 5,388 1.4 $114.03 $149.04 10,249 2.4 $149.04 10,249 2.4 $149.04 $117.90 6,852 3.3 $117.90 6,852 3.3 $117.90 $128.52 21,715 4.4 $128.52 21,715 4.4 $128.52 $89.55 15,846 5.4 $89.55 15,846 5.4 $89.55 63,443 3.7 $118.61 63,443 3.7 $118.61 As of December 31, 2020, all outstanding options are exercisable. The aggregate intrinsic value of these options is $0. During the year ended December 31, 2020, no options were exercised and no options vested. The aggregate intrinsic value of options that exercised and the aggregate fair value of options that vested during the year ended December 31, 2019 was $1 and $32, respectively. The aggregate intrinsic value of options that exercised and the aggregate fair value of options that vested during the year ended December 31, 2018 was $0 and $154, respectively. Share Award Related Compensation Expense During the years ended December 31, 2020, 2019 and 2018, the Company recorded share award related compensation expense pertaining to the award and option plans noted above of $7.3 million, $7.8 million, and $8.3 million in general and administrative and property operating expense within the consolidated statements of operations and comprehensive (loss) income. In certain instances, employment agreements and stock compensation programs provide for accelerated vesting when executives are terminated without cause. Additionally, the Committee may, in its discretion, accelerate the vesting for retiring Board members. Distributions During the years ended December 31, 2020 and 2019, the Board declared common share/unit dividends of $1.125 and $9.000 per common share/unit, respectively.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation We are involved from time-to-time in various legal proceedings that arise in the ordinary course of our business, including, but not limited to commercial disputes, environmental matters, and litigation in connection with transactions including acquisitions and divestitures. We believe that such litigation, claims and administrative proceedings will not have a material adverse impact on our financial position or our results of operations. Additionally, we may in the near future seek to implement a Restructuring pursuant to a plan of reorganization to be filed in cases commenced under chapter 11 of the Bankruptcy Code. We record a liability when a loss is considered probable and the amount can be reasonably estimated. Concentration of Credit Risk All operations are within the United States and no customer or tenant accounts for 5% or more of our consolidated revenues. Lease Commitments As of December 31, 2020, a total of four consolidated properties are subject to ground leases. The termination dates of these ground leases range from 2026 to 2076. These ground leases generally require us to make fixed annual rental payments, or a fixed annual rental plus a percentage rent component based upon the revenues or total sales of the property. Some of these leases also include escalation clauses and renewal options. We incurred ground lease expense, which is included in ground rent in the accompanying consolidated statements of operations and comprehensive (loss) income, for the years ended December 31, 2020, 2019 and 2018 of $778, $837 and $789, respectively, of which $20, $20 and $50 related to straight-line rent expense, respectively. Additionally, the Company has two material office leases and one material garage lease. The termination dates of these leases range from 2023 to 2026. These leases generally require us to make fixed annual rental payments, plus our share of common-area maintenance expense and real estate taxes and insurance. We incurred lease expense, which is included in general and administrative expenses in the accompanying consolidated statements of operations and comprehensive (loss) income, for the years ended December 31, 2020, 2019 and 2018 of $2,578, $2,609, and $2,668, respectively. The discount rates utilized in calculating the lease liabilities represents our estimate of the Company's incremental borrowing rate over the terms that correspond to the leases. Future minimum lease payments due under these leases for each of the next five years and thereafter, excluding applicable extension options, as of December 31, 2020 are as follows: 2021 $ 2,069 2022 2,099 2023 1,427 2024 999 2025 1,008 Thereafter 19,370 Total lease payments 26,972 Less: Discount 15,728 Present value of lease liabilities $ 11,244 The weighted average remaining lease term for our consolidated operating leases was 20.5 years and the weighted average discount rate for determining the lease liabilities was 8.8% at December 31, 2020. We had no financing leases as of December 31, 2020.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Hannah Laikin During years ended December 31, 2020 and 2019, an affiliate of WPG L.P. employed Mrs. Hannah Laikin, the daughter-in-law of our Chairman of the Board, Robert J. Laikin, in a non-executive role as Director, Special Projects. Mrs. Laikin's compensation for the years ended December 31, 2020 and 2019 was approximately $0.2 million. Mrs. Laikin is not an executive officer of the Company or any of its affiliates, but she is included in the Company’s count of its full-time employees as of the December 31, 2020. Mrs. Laikin’s place of employment is the Company’s Indianapolis, Indiana corporate office in the Leasing Department. Mrs. Laikin has no direct reports and reports to the Company’s Chief Executive Officer. Mrs. Laikin is an at-will employee. Mrs. Laikin’s employment with the Company was approved by the Board’s Audit Committee after review of her relationship with our Chairman of the Board. Our Audit Committee does not expect this relationship to impair Mr. Laikin’s independence status because Mrs. Laikin is not an executive officer of the Company. Real Estate Brokerage Services During year ended December 31, 2020, WPG (via one of its affiliates) paid an unaffiliated real estate brokerage firm (the “Firm”) a total of $0.2 million (the “Payment”) in commissions for commercial leasing transactions involving certain of WPG’s enclosed retail properties. Mr. Cooper Laikin, the son of Robert J. Laikin, the incumbent Chairman of the Board, is employed as a broker for the Firm and received a percentage of the Payment as compensation for real estate and leasing brokerage services provided to WPG (or certain affiliates) during 2020 (or a prior year). Also, Mr. C. Laikin entered into a real estate brokerage transaction involving The Outlet Collection│Seattle, located in Auburn, Washington (the “Center”) in which Mr. C. Laikin was to receive a commission of $15. The transaction was not consummated in 2020 regarding the Center and no commission was paid during fiscal year 2020. Our Audit Committee has reviewed the aforementioned transactions as codified in the policies and procedures of our code of conduct.

(Loss) Earnings Per Common Shar

(Loss) Earnings Per Common Share/Unit	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
(Loss) Earnings Per Common Share/Unit	(Loss) Earnings Per Common Share/Unit WPG Inc. (Loss) Earnings Per Common Share We determine WPG Inc.'s basic (loss) earnings per common share based on the weighted average number of shares of common stock outstanding during the period and we consider any participating securities for purposes of applying the two-class method. We determine WPG Inc.'s diluted (loss) earnings per share based on the weighted average number of shares of common stock outstanding combined with the incremental weighted average shares that would have been outstanding assuming all potentially dilutive securities were converted into common shares at the earliest date possible. The following table sets forth the computation of WPG Inc.'s basic and diluted (loss) earnings per common share: For the Year Ended December 31, 2020 2019 2018 (Loss) Earnings Per Common Share, Basic: Net (loss) income attributable to common shareholders - basic $ (233,818) $ (9,758) $ 79,572 Weighted average shares outstanding - basic 21,173,364 20,938,381 20,855,149 (Loss) earnings per common share, basic $ (11.04) $ (0.47) $ 3.81 (Loss) Earnings Per Common Share, Diluted: Net (loss) income attributable to common shareholders - basic $ (233,818) $ (9,758) $ 79,572 Net (loss) income attributable to common unitholders (42,341) (1,799) 14,735 Net (loss) income attributable to common shareholders - diluted $ (276,159) $ (11,557) $ 94,307 Weighted average common shares outstanding - basic 21,173,364 20,938,381 20,855,149 Weighted average operating partnership units outstanding 3,834,258 3,858,890 3,855,975 Weighted average additional dilutive securities outstanding — — 67,075 Weighted average common shares outstanding - diluted 25,007,622 24,797,271 24,778,199 (Loss) earnings per common share, diluted $ (11.04) $ (0.47) $ 3.81 For the years ended December 31, 2020, 2019 and 2018, additional potentially dilutive securities include contingently-issuable outstanding stock options, restricted stock units, and performance based components of annual or special arrangement awards. For the year ended December 31, 2020, the potential dilutive effect of 63,443 contingently-issuable outstanding stock options, 66,857 restricted stock units, and 318,669 performance based components of annual or special arrangement awards were excluded as their inclusion would be anti-dilutive. For the year ended December 31, 2019, the potential dilutive effect of 66,941 contingently-issuable outstanding stock options, 63,453 restricted stock units, and 195,937 performance based components of annual or special arrangement awards were excluded as their inclusion would be anti-dilutive. We accrue distributions when they are declared. WPG L.P. (Loss) Earnings Per Common Unit We determine WPG L.P.'s basic (loss) earnings per common unit based on the weighted average number of common units outstanding during the period and we consider any participating securities for purposes of applying the two-class method. We determine WPG L.P.'s diluted (loss) earnings per unit based on the weighted average number of common units outstanding combined with the incremental weighted average units that would have been outstanding assuming all potentially dilutive securities were converted into common units at the earliest date possible. The following table sets forth the computation of WPG L.P.'s basic and diluted (loss) earnings per common unit: For the Year Ended December 31, 2020 2019 2018 (Loss) Earnings Per Common Unit, Basic and Diluted: Net (loss) income attributable to common unitholders - basic and diluted $ (276,159) $ (11,557) $ 94,307 Weighted average common units outstanding - basic 25,007,622 24,797,271 24,711,124 Weighted average additional dilutive securities outstanding — — 67,075 Weighted average shares outstanding - diluted 25,007,622 24,797,271 24,778,199 (Loss) earnings per common unit, basic and diluted $ (11.04) $ (0.47) $ 3.81 For the years ended December 31, 2020, 2019 and 2018, additional potentially dilutive securities include contingently-issuable outstanding stock options, restricted stock units, and performance based components of annual or special arrangement awards. For the year ended December 31, 2020, the potential dilutive effect of 63,443 contingently-issuable outstanding stock options, 66,857 restricted stock units, and 318,669 performance based components of annual or special arrangement awards were excluded as their inclusion would be anti-dilutive. For the year ended December 31, 2019, the potential dilutive effect of 66,941 contingently-issuable outstanding stock options, 63,453 restricted stock units, and 195,937 performance based components of annual or special arrangement awards were excluded as their inclusion would be anti-dilutive. We accrue distributions when they are declared.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On February 2, 2021, we received a notice of default letter, dated December 8, 2020, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $17.2 million mortgage loan secured by Anderson Mall. The notice was issued by the special servicer because the borrower elected to not make monthly debt service payments beginning in April 2020 in response to the COVID-19 pandemic. The borrower continues to have discussions with the special servicer of the non-recourse loan and is considering various options. On March 8, 2021, the Company received notification that a receiver had been appointed to manage and lease the property. An affiliate of the Company continues to hold title to the property. On February 9, 2021, we received a notice of default letter, dated that same day, from the special servicer to the borrower, a consolidated subsidiary of WPG L.P., concerning the $47.3 million mortgage loan secured by Lincolnwood Town Center. The notice was issued by the special servicer because the funds maintained in the cash management account were insufficient to pay the full January 2021 mortgage payment. The borrower has initiated discussions with the special servicer of the non-recourse loan and is considering various options. The Company continues to own, manage and lease the property. On February 15, 2021, we deferred the approximately $23.2 million semi-annual interest payment on the Senior Notes and commenced a 30-day grace period under the terms of the indentures governing said notes. The Company does not expect to make the interest payment on the last day of such grace period. The failure to make the interest payment will result in an event of default on March 17, 2021 under the indenture governing the Senior Notes, which will result in a cross default under the credit agreements governing our credit facilities. On March 16, 2021, we entered into the Forbearance Agreements with certain holders of our Senior Notes and the administrative agents of our corporate credit facilities, on behalf of the lenders under such facilities, pursuant to which, among other things, the forbearing parties agreed not to exercise any rights and remedies available to them under the indenture governing the Senior Notes or applicable credit agreement, as applicable, related to the missed interest payment during the Forbearance Periods. There are no assurances that we will be able to extend the Forbearance Periods or that our lenders or noteholders will not accelerate our indebtedness outstanding under the Senior Notes or our credit facilities after the expiration of the Forbearance Periods.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) Quarterly 2020 and 2019 data is summarized in the table below. Quarterly amounts may not sum to annual amounts due to rounding. First Second Third Fourth 2020 Total revenue $ 152,600 $ 98,764 $ 123,682 $ 149,372 Net income (loss) $ 7,560 $ (93,413) $ (48,061) $ (127,910) Washington Prime Group Inc.: Net income (loss) attributable to the Company $ 6,883 $ (78,542) $ (40,229) $ (107,898) Net income (loss) attributable to common shareholders $ 3,375 $ (82,050) $ (43,737) $ (111,406) Earnings (loss) per common share—basic and diluted $ 0.16 $ (3.88) $ (2.06) $ (5.24) Washington Prime Group, L.P.: Net income (loss) attributable to unitholders $ 7,560 $ (93,413) $ (48,061) $ (127,910) Net income (loss) attributable to common unitholders $ 3,992 $ (96,981) $ (51,629) $ (131,541) Earnings (loss) per common unit—basic and diluted $ 0.16 $ (3.88) $ (2.06) $ (5.24) 2019 Total revenue $ 168,823 $ 161,434 $ 161,204 $ 170,023 Net (loss) income $ (2,563) $ (16,880) $ (1,665) $ 23,868 Washington Prime Group Inc.: Net (loss) income attributable to the Company $ (1,667) $ (13,754) $ (913) $ 20,608 Net (loss) income attributable to common shareholders $ (5,175) $ (17,262) $ (4,421) $ 17,100 (Loss) earnings per common share—basic and diluted $ (0.25) $ (0.82) $ (0.21) $ 0.81 Washington Prime Group, L.P.: Net (loss) income attributable to unitholders $ (2,563) $ (16,880) $ (1,665) $ 23,868 Net (loss) income attributable to common unitholders $ (6,131) $ (20,448) $ (5,233) $ 20,255 (Loss) earnings per common unit—basic and diluted $ (0.25) $ (0.82) $ (0.21) $ 0.81

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Real Estate and Accumulated Depreciation	Initial Cost Cost Capitalized Gross Amounts At Name Location Encumbrances(3) Land Buildings and Land Buildings and Land Buildings and Total(1) Accumulated Date of Enclosed Retail Properties Anderson Mall Anderson, SC $ 17,156 $ 1,712 $ 15,227 $ (748) $ 13,791 $ 964 $ 29,018 $ 29,982 $ 26,050 1972 Ashland Town Center Ashland, KY 35,045 13,462 68,367 (396) 7,127 13,066 75,494 88,560 18,035 2015 Bowie Town Center(5) Bowie (Wash, D.C.), MD — 2,479 60,322 236 10,566 2,715 70,888 73,603 43,558 2001 Boynton Beach Mall Boynton Beach (Miami), FL — 22,240 78,804 6,977 34,555 29,217 113,359 142,576 81,003 1996 Brunswick Square East Brunswick (New York), NJ 68,259 8,436 55,838 — 35,539 8,436 91,377 99,813 62,862 1996 Charlottesville Fashion Square Charlottesville, VA 45,068 — 54,738 — 9,119 — 63,857 63,857 47,289 1997 Chautauqua Mall Lakewood, NY — 3,116 9,641 (2,171) 13,140 945 22,781 23,726 18,353 1996 Chesapeake Square Theater Chesapeake (VA Beach), VA — 628 9,536 — (738) 628 8,798 9,426 2,770 1996 Clay Terrace(5) Carmel (Indianapolis), IN — 39,030 115,207 43 15,526 39,073 130,733 169,806 31,112 2014 Cottonwood Mall Albuquerque, NM 93,281 10,122 69,958 5,042 26,132 15,164 96,090 111,254 55,375 1996 Dayton Mall Dayton, OH 77,711 10,899 160,723 (4,632) (86,215) 6,267 74,508 80,775 32,759 2015 Edison Mall(4) Fort Myers, FL — 11,529 107,350 — 36,168 11,529 143,518 155,047 89,104 1997 Grand Central Mall Parkersburg, WV 38,084 18,956 89,736 — 30,233 18,956 119,969 138,925 27,876 2015 Great Lakes Mall(4) Mentor (Cleveland), OH — 12,302 100,362 (121) 55,718 12,181 156,080 168,261 89,487 1996 Indian Mound Mall Newark, OH — 7,109 19,205 (5,294) (8,494) 1,815 10,711 12,526 6,807 2015 Irving Mall(4) Irving (Dallas), TX — 6,737 17,479 2,533 45,433 9,270 62,912 72,182 46,642 1971 Jefferson Valley Mall(4) Yorktown Heights (New York), NY — 4,868 30,304 — 69,414 4,868 99,718 104,586 54,352 1983 Lima Mall Lima, OH — 7,659 35,338 — 19,968 7,659 55,306 62,965 36,082 1996 Lincolnwood Town Center Lincolnwood (Chicago), IL 47,252 7,834 63,480 — 21,409 7,834 84,889 92,723 61,612 1990 Lindale Mall Cedar Rapids, IA — 14,106 58,286 (1,480) 14,989 12,626 73,275 85,901 30,168 1998 Longview Mall Longview, TX — 259 3,567 3,319 29,271 3,578 32,838 36,416 10,635 1978 Mall at Fairfield Commons, The Beavercreek, OH — 18,194 175,426 (687) 38,951 17,507 214,377 231,884 44,522 2015 Maplewood Mall St. Paul (Minneapolis), MN — 17,119 80,758 — 27,387 17,119 108,145 125,264 62,305 2002 Markland Mall Kokomo, IN — — 7,568 2,803 32,001 2,803 39,569 42,372 14,639 1968 Melbourne Square Melbourne, FL — 15,762 55,891 2,831 38,535 18,593 94,426 113,019 59,787 1996 Mesa Mall(5) Grand Junction, CO — 12,784 80,639 (1,717) 13,543 11,067 94,182 105,249 36,322 1998 Morgantown Mall Morgantown, WV — 10,219 77,599 — 12,370 10,219 89,969 100,188 19,734 2015 Muncie Mall Muncie, IN 33,071 172 5,776 48 29,184 220 34,960 35,180 25,916 1970 Initial Cost Cost Capitalized Gross Amounts At Name Location Encumbrances(3) Land Buildings and Land Buildings and Land Buildings and Total(1) Accumulated Date of New Towne Mall New Philadelphia, OH — 3,172 33,112 (2,063) (9,818) 1,109 23,294 24,403 12,107 2015 Northtown Mall(5) Blaine, MN — 18,603 57,341 (676) 8,572 17,927 65,913 83,840 18,160 2015 Northwoods Mall Peoria, IL — 1,185 12,779 3,021 55,184 4,206 67,963 72,169 43,808 1983 Oak Court Mall Memphis, TN 36,069 15,673 57,304 — 15,025 15,673 72,329 88,002 57,559 1997 Orange Park Mall(5) Orange Park (Jacksonville), FL — 12,998 65,121 (267) 49,679 12,731 114,800 127,531 77,975 1994 Outlet Collection ® | Seattle, The(5) Auburn (Seattle), WA — 38,751 107,094 — 24,507 38,751 131,601 170,352 30,629 2015 Paddock Mall(5) Ocala, FL — 11,198 39,727 — 24,775 11,198 64,502 75,700 39,918 1996 Port Charlotte Town Center Port Charlotte, FL 40,868 5,471 58,570 — 19,580 5,471 78,150 83,621 55,546 1996 Rolling Oaks Mall San Antonio, TX — 1,929 38,609 — 16,720 1,929 55,329 57,258 41,283 1988 Southern Hills Mall Sioux City, IA — 15,025 75,984 3,585 7,792 18,610 83,776 102,386 35,866 1998 Southern Park Mall Youngstown, OH — 16,982 77,767 (236) 45,011 16,746 122,778 139,524 76,394 1996 Southgate Mall Missoula, MT 35,395 17,040 35,896 — 5,755 17,040 41,651 58,691 5,073 2018 Sunland Park Mall El Paso, TX — 2,896 28,900 (524) 7,017 2,372 35,917 38,289 30,397 1988 Town Center at Aurora ® Aurora (Denver), CO 50,750 9,959 56,832 9,975 73,040 19,934 129,872 149,806 90,463 1998 Waterford Lakes Town Center Orlando, FL 175,876 8,679 72,836 — 31,412 8,679 104,248 112,927 65,700 1999 Weberstown Mall Stockton, CA 65,000 9,909 92,589 — 5,485 9,909 98,074 107,983 21,114 2015 Westminster Mall Westminster (Los Angeles), CA 75,110 43,464 84,709 (180) 44,403 43,284 129,112 172,396 76,629 1998 WestShore Plaza(5) Tampa, FL — 53,904 120,191 3,668 14,763 57,572 134,954 192,526 25,352 2015 Open Air Properties Bloomingdale Court(5) Bloomingdale (Chicago), IL — 8,422 26,184 (551) 18,239 7,871 44,423 52,294 32,828 1987 Bowie Town Center Strip(5) Bowie (Wash, D.C.), MD — 231 4,597 — 1,026 231 5,623 5,854 3,131 2001 Canyon View Marketplace Grand Junction, CO 5,020 1,370 9,570 — 770 1,370 10,340 11,710 1,737 2015 Chesapeake Center(5) Chesapeake (Virginia Beach), VA — 4,410 11,241 (40) 1,762 4,370 13,003 17,373 11,491 1996 Concord Mills Marketplace Concord (Charlotte), NC 16,000 8,036 21,167 — 1,104 8,036 22,271 30,307 7,572 2007 Countryside Plaza(5) Countryside (Chicago), IL — 332 8,507 2,554 12,551 2,886 21,058 23,944 14,971 1977 Dare Centre Kill Devil Hills, NC — — 5,702 — 3,012 — 8,714 8,714 5,074 2004 Empire East(5) Sioux Falls, SD — 3,350 10,552 — 5,907 3,350 16,459 19,809 4,830 1998 Fairfax Court Fairfax (Wash, D.C.), VA — 8,078 34,997 (647) 3,182 7,431 38,179 45,610 9,700 2014 Fairfield Town Center(5) Houston, TX — 4,745 5,044 3,940 64,993 8,685 70,037 78,722 8,223 2014 Forest Plaza Rockford, IL 30,250 4,132 16,818 453 18,811 4,585 35,629 40,214 19,710 1985 Gaitway Plaza(5) Ocala, FL — 5,445 26,687 — 4,394 5,445 31,081 36,526 8,304 2014 Greenwood Plus(5) Greenwood (Indianapolis), IN — 1,129 1,792 (57) 4,970 1,072 6,762 7,834 5,066 1979 Henderson Square(5) King of Prussia (Philadelphia), PA — 4,223 15,124 — 1,517 4,223 16,641 20,864 8,399 2003 Keystone Shoppes(5) Indianapolis, IN — — 4,232 2,118 5,479 2,118 9,711 11,829 4,993 1997 Lake Plaza(5) Waukegan (Chicago), IL — 2,487 6,420 (787) 1,891 1,700 8,311 10,011 6,464 1986 Lake View Plaza(5) Orland Park (Chicago), IL — 4,702 17,543 (89) 19,138 4,613 36,681 41,294 25,918 1986 Initial Cost Cost Capitalized Gross Amounts At Name Location Encumbrances(3) Land Buildings and Land Buildings and Land Buildings and Total(1) Accumulated Date of Lakeline Plaza Cedar Park (Austin), TX 49,710 5,822 30,875 — 16,011 5,822 46,886 52,708 27,795 1998 Lima Center Lima, OH — 1,781 5,151 — 10,125 1,781 15,276 17,057 11,674 1996 Lincoln Crossing(5) O'Fallon (St. Louis), IL — 674 2,192 — 9,792 674 11,984 12,658 5,090 1990 MacGregor Village Cary, NC — 502 8,891 — 12,035 502 20,926 21,428 6,220 2004 Mall of Georgia Crossing Buford (Atlanta), GA 21,131 9,506 32,892 — 5,118 9,506 38,010 47,516 22,501 1999 Markland Plaza(5) Kokomo, IN — 206 738 (5) 9,030 201 9,768 9,969 5,527 1974 Martinsville Plaza Martinsville, VA — — 584 — 3,183 — 3,767 3,767 746 1967 Muncie Towne Plaza Muncie, IN 10,550 267 10,509 86 4,459 353 14,968 15,321 9,419 1998 North Ridge Shopping Center Raleigh, NC 11,229 385 12,826 — 8,080 385 20,906 21,291 8,980 2004 Northwood Plaza(5) Fort Wayne, IN — 148 1,414 — 4,038 148 5,452 5,600 3,682 1974 Plaza at Buckland Hills, The(5) Manchester, CT — 17,355 43,900 (281) 10,279 17,074 54,179 71,253 10,823 2014 Richardson Square(5) Richardson (Dallas), TX — 6,285 — 990 14,763 7,275 14,763 22,038 7,279 1996 Rockaway Commons(5) Rockaway (New York), NJ — 5,149 26,435 (117) 17,204 5,032 43,639 48,671 23,560 1998 Rockaway Town Plaza(5) Rockaway (New York), NJ — — 18,698 2,225 5,592 2,225 24,290 26,515 11,792 2004 Royal Eagle Plaza Coral Springs (Miami), FL — 2,153 24,216 (152) 14,306 2,001 38,522 40,523 9,915 2014 Shops at North East Mall, The(5) Hurst (Dallas), TX — 12,541 28,177 402 8,558 12,943 36,735 49,678 26,261 1999 St. Charles Towne Plaza Waldorf (Wash, D.C.), MD — 8,216 18,993 (62) 10,990 8,154 29,983 38,137 20,143 1987 Tippecanoe Plaza Lafayette, IN — — 745 234 5,892 234 6,637 6,871 4,641 1974 University Center(5) Mishawaka, IN — 2,119 8,365 — 5,493 2,119 13,858 15,977 11,057 1996 University Town Plaza Pensacola, FL — 6,009 26,945 (579) 2,473 5,430 29,418 34,848 11,488 2013 Village Park Plaza(5) Carmel (Indianapolis), IN — 19,565 51,873 (1,845) 2,557 17,720 54,430 72,150 18,438 2014 Washington Plaza Indianapolis, IN — 263 1,833 — 3,329 263 5,162 5,425 4,588 1996 West Town Corners Altamonte Springs (Orlando), FL — 6,821 24,603 (174) 8,607 6,647 33,210 39,857 9,299 2014 Westland Park Plaza Orange Park (Jacksonville), FL — 5,576 8,775 — 579 5,576 9,354 14,930 3,049 2014 White Oaks Plaza Springfield, IL 26,490 3,169 14,267 63 10,899 3,232 25,166 28,398 15,504 1986 Whitehall Mall Whitehall, PA — 8,500 28,512 — 5,604 8,500 34,116 42,616 11,500 2014 Wolf Ranch(5) Georgetown (Austin), TX — 21,999 51,547 (186) 17,124 21,813 68,671 90,484 35,294 2005 Other Developments — — — — 15,730 — 15,730 15,730 — $ 1,104,375 $ 770,674 $ 3,532,619 $ 30,382 $ 1,434,120 $ 801,056 $ 4,966,739 $ 5,767,795 $ 2,453,805 (1) Reconciliation of Real Estate Properties: The changes in real estate assets (which excludes furniture, fixtures and equipment) for the years ended December 31, 2020, 2019 and 2018 are as follows: 2020 2019 2018 Balance, beginning of year $ 5,798,217 $ 5,817,153 $ 5,715,996 Acquisitions — 10,899 72,647 Improvements 172,897 178,669 143,123 Disposals* (203,319) (208,504) (114,613) Balance, end of year $ 5,767,795 $ 5,798,217 $ 5,817,153 *Primarily represents properties that have been sold and fully depreciated assets which have been disposed. Further, includes impairment charges of $135,151, $35,256, and $0 for the years ended December 31, 2020, 2019 and 2018, respectively. The following reconciles investment properties at cost per the consolidated balance sheet to the balance per Schedule III as of December 31, 2020: 2020 Investment properties at cost $ 5,873,801 Less: furniture, fixtures and equipment (106,006) Total cost per Schedule III $ 5,767,795 The unaudited aggregate cost for federal income tax purposes of real estate assets presented was $4,635,538 as of December 31, 2020. (2) Reconciliation of Accumulated Depreciation: The changes in accumulated depreciation and amortization for the years ended December 31, 2020, 2019 and 2018 are as follows: 2020 2019 2018 Balance, beginning of year $ 2,320,417 $ 2,212,476 $ 2,076,948 Depreciation expense 193,902 226,696 205,724 Disposals (60,514) (118,755) (70,196) Balance, end of year $ 2,453,805 $ 2,320,417 $ 2,212,476 The following reconciles accumulated depreciation per the consolidated balance sheet to the balance per Schedule III as of December 31, 2020: 2020 Accumulated depreciation $ 2,539,745 Less: furniture, fixtures and equipment (85,940) Total accumulated depreciation per Schedule III $ 2,453,805 Depreciation of our investment in buildings and improvements reflected in the consolidated statements of operations is generally calculated over the estimated original lives of the assets as noted below: • Buildings and Improvements—typically 10-40 years for the structure, 15 years for landscaping and parking lot, and 10 years for HVAC equipment. • Tenant Allowances and Improvements—shorter of lease term or useful life. (3) Encumbrances represent face amount of mortgage debt and exclude any fair value adjustments and debt issuance costs. (4) Land is subject to a ground lease. See Note 6 - "Indebtedness" for additional details. (5) Property is temporarily collateralized by certain corporate debt instruments. See Note 6 - "Indebtedness" for additional details.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments purchased with an original maturity of 90 days or less to be cash and cash equivalents. Cash equivalents are carried at cost, which approximates fair value. Cash equivalents generally consist of commercial paper, bankers' acceptances, repurchase agreements, and money market deposits or securities. Financial instruments that potentially subject us to concentrations of credit risk include our cash and cash equivalents and our tenant receivables. We place our cash and cash equivalents with institutions with high credit quality. However, at certain times, such cash and cash equivalents may be in excess of FDIC and SIPC insurance limits.
Investment Properties	Investment Properties We record investment properties at fair value when acquired. Investment properties include costs of acquisitions; development, predevelopment, and construction (including allocable salaries and related benefits); tenant allowances and improvements; and interest and real estate taxes incurred during construction. We capitalize improvements and replacements from repair and maintenance when the repair and maintenance extends the useful life, increases capacity, or improves the efficiency of the asset. All other repair and maintenance items are expensed as incurred. We capitalize interest on projects during periods of construction until the projects are ready for their intended purpose based on interest rates in place during the construction period. Capitalized interest for the years ended December 31, 2020, 2019 and 2018 was $7,163, $3,961 and $2,234, respectively. We record depreciation on buildings and improvements utilizing the straight-line method over an estimated original useful life, which is generally five three
Investments in Unconsolidated Entities	Investments in Unconsolidated Entities Joint ventures are common in the real estate industry. We use joint ventures to finance properties, develop new properties, and diversify our risk in a particular property or portfolio of properties. We held material unconsolidated joint venture ownership interests in 12 and 13 properties as of December 31, 2020 and 2019, respectively (see Note 5 - "Investment in Unconsolidated Entities, at Equity").
Fair Value Measurements	Fair Value Measurements The Company measures and discloses its fair value measurements in accordance with Accounting Standards Codification ("ASC") Topic 820 - “Fair Value Measurement” (“Topic 820”). Topic 820 guidance emphasizes that fair value is a market-based measurement, not an entity-specific measurement. Therefore, a fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, Topic 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity's own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). The fair value hierarchy, as defined by Topic 820, contains three levels of inputs that may be used to measure fair value as follows: • Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. • Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly such as interest rates, foreign exchange rates, and yield curves, that are observable at commonly quoted intervals. • Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity's own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. Note 6 - "Indebtedness" includes a discussion of the fair value of debt measured using Level 1 and Level 2 inputs. Note 4 - "Investment in Real Estate" includes a discussion of the fair value inputs used in our impairment analyses, using Level 3 inputs, primarily. Level 3 inputs include our estimations of net operating results of the property, capitalization rates and discount rates. The Company has derivatives that must be measured under the fair value standard (see Note 7 - "Derivative Financial Instruments"). The Company currently does not have any non-financial assets and non-financial liabilities that are required to be measured at fair value on a recurring basis.
Purchase Accounting Valuation	Purchase Accounting Valuation We record the total consideration of acquisitions, including transaction costs as permitted under ASU 2017-1, "Business Combinations (Topic 805): Clarifying the Definition of a Business," and any excess investment in unconsolidated entities to the various components of the acquisition based upon the fair value of each component which may be derived from various Level 2 and Level 3 inputs. Level 3 inputs include our estimations of net operating results of the property, capitalization rates and discount rates. Also, we may utilize third party valuation specialists. These components typically include buildings, land and intangibles related to in-place leases and we estimate: • the fair value of land and related improvements and buildings on an as-if-vacant basis; • the market value of in-place leases based upon our best estimate of current market rents and amortize the resulting market rent adjustment into revenues; • the value of costs to obtain tenants, including tenant allowances and improvements and leasing commissions; and • the value of revenue and recovery of costs foregone during a reasonable lease-up period, as if the space was vacant. The fair value of buildings is depreciated over the estimated remaining life of the acquired buildings or related improvements. We amortize tenant improvements, in-place lease assets and other lease-related intangibles over the remaining life of the underlying leases. We also estimate the value of other acquired intangible assets, if any, which are amortized over the remaining life of the underlying related intangibles.
Use of Estimates	Use of Estimates We prepared the accompanying consolidated financial statements in accordance with GAAP. This requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the reported period. Our actual results could differ from these estimates.
Segment Disclosure	Segment Disclosure Our primary business is the ownership, development and management of retail real estate. We have aggregated our operations, including enclosed retail properties and open air properties, into one reportable segment because they have similar economic characteristics and we provide similar products and services to similar types of, and in many cases, the same tenants.
New Accounting Pronouncements	New Accounting Pronouncements In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, "Financial Instruments - Credit Losses," which introduced new guidance for an approach based on expected losses to estimate credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides a simplified accounting model for purchased financial assets with credit deterioration since their origination. Instruments in scope include loans, held-to-maturity debt securities, and net investments in leases as well as reinsurance and trade receivables. In November 2018, the FASB issued ASU 2018-19, which clarifies that operating lease receivables are outside the scope of the new standard. We adopted this ASU on January 1, 2020, noting our seller-provided bridge financing associated with our other indebtedness (see Note 6 - "Indebtedness" for further details) and certain other miscellaneous accounts are in scope of ASU 2016-13. However, there was no impact to our consolidated financial statements at adoption. In April 2020, the FASB issued a question-and-answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of COVID-19. Under existing lease guidance, the Company would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated with the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A clarifies that entities may elect to not evaluate whether lease-related relief that lessors provide to mitigate the economic effects of COVID-19 on lessees is a lease modification under Topic 842, "Leases." Instead, an entity that elects not to evaluate whether a concession directly related to COVID-19 is a modification, can account for the concession as though enforceable rights and obligations for those concessions existed (regardless of whether these enforceable rights and obligations for the concessions explicitly exist in the contract). Both lessees and lessors may make this election. For all concessions that did not result in a substantial increase in the rights of the lessor or the obligations of the lessees, the Company elected to adopt this optional relief in the second quarter of 2020, resulting in abatements granted in the period being recognized as negative variable revenue during the period of abatement. Concessions in the form of rent deferrals were effectively accounted for as if the lease was unchanged, though in all cases receivables were evaluated under the collectibility guidance in Topic 842. In March 2020, the FASB issued ASU 2020-04 "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." ASU 2020-04 provides temporary optional expedients and exceptions to GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from the London Inter-Bank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate ("SOFR"). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. If elected, an entity would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities electing relief would need to apply it consistently for all eligible modified contracts accounted for under a particular codification topic or industry subtopic. Additionally, entities can elect various optional expedients that would allow them to continue to apply hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. Entities electing relief related to hedging relationships can generally elect to apply the optional expedients on a hedge-by-hedge basis.
Deferred Leasing Costs and Corporate Improvements	Deferred Leasing Costs and Corporate ImprovementsOur deferred leasing costs consist of internal salaries and related benefits prior to the adoption of ASU 2016-02 and fees paid to third party brokers. We record amortization of deferred leasing costs on a straight-line basis over the terms of the related leases.
Revenue Recognition	Revenue Recognition Rental Income We receive rental income from the leasing of retail and other space under operating leases, as we retain substantially all of the risks and benefits of ownership of the investment properties. The majority of these leases contain extension options, typically at the lessee's election, and/or early termination provisions. Further, our leases do not contain any provisions that would allow the lessee to purchase the underlying assets throughout the lease term. In most cases, consideration received typically includes either a fixed minimum rent or percentage rent component, reimbursement of a fixed portion of our property operating expenses, including utility, security, janitorial, landscaping, food court and other administrative expenses included in common area maintenance, or CAM, and reimbursement of lessor costs such as real estate taxes and insurance, computed based upon a formula in accordance with the lease terms. When not reimbursed by the fixed CAM component, CAM expense reimbursements and lessor costs are based on the tenant's proportionate share of the allocable operating expenses and CAM capital expenditures for the property. We accrue reimbursements from tenants for recoverable portions of all these expenses as revenue in the period the applicable expenditures are incurred. We recognize differences between estimated recoveries and the final billed amounts in the subsequent year. Additionally, a large number of our tenants are also required to pay overage rents based on sales during the applicable lease year over a base amount stated in the lease agreement. We recognize overage rents only when each tenant's sales exceed the applicable sales threshold as defined in their lease. We also collect lease termination income from tenants to allow for the tenant to vacate their space prior to their scheduled lease termination date. We recognize lease termination income in the period when a termination agreement is signed, collectability is assured, and we are no longer obligated to provide space to the tenant. In the event that a tenant is in bankruptcy when the termination agreement is signed, termination fee income is deferred and recognized when, and if, it is received. We record an adjustment to rental income in the period there is a change in our assessment of whether the collectibility of operating lease payments is probable. In making this estimation, we evaluate information that includes the age of billed receivables, collection history, lease concessions granted by the Company and tenants' financial condition to assess the probability of collection. We have elected the practical expedient in ASU 2016-02 to not separate non-lease components from lease components as our underlying leases qualify as operating leases and the timing and pattern of transfer of the lease and non-lease components are the same. We note that the predominant component of our leases is the lease component and thus account for the combined lease and non-lease (CAM) component of the non-cancelable lease term on a straight-line basis in accordance with ASC 842. Rental income also includes accretion related to above-market and below-market lease intangibles related to the acquisition of operating properties. We amortize any tenant inducements as a reduction of rental income utilizing the straight-line method over the term of the related lease or occupancy term of the tenant, if shorter. The following table summarizes our rental income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Operating lease payments, fixed $ 478,589 $ 539,458 $ 592,481 Operating lease payments, variable 94,440 90,922 91,784 Amortization of straight-line rent, inducements, and rent abatements (17,538) 4,409 3,022 Net amortization/accretion of above and below-market leases 8,925 6,382 8,971 Change in estimate of collectibility of rental income (57,734) (7,538) (5,826) Total rental income $ 506,682 $ 633,633 $ 690,432 Included in the amounts presented for the year ended December 31, 2020 are rent abatements $24.1 million and a change in our estimate of collectibility of rental income of $52.4 million, including the change in estimate of collectibility of accrued (straight-line) rent, in response to the COVID-19 pandemic. We record a change in estimate of collectibility of rental income on a lease-by-lease basis in the period there is a change in our assessment of whether the collectibility of operating lease payments is probable. Accounts are written off when they are deemed to be no longer collectible. The following table provides a rollforward of activity during the years ended December 31, 2020, 2019 and 2018 is as follows: For the Year Ended December 31, 2020 2019 2018 Balance, beginning of year $ 12,911 $ 10,131 $ 7,867 Change in estimate of collectibility of rental income 57,734 7,538 5,826 Accounts written off, net of recoveries, and other (9,223) (4,758) (3,562) Balance, end of year $ 61,422 $ 12,911 $ 10,131 Future payments to be received under non-cancelable operating leases for each of the next five years and thereafter, excluding variable payments of tenant reimbursements, percentage or overage rents, and lease termination payments as of December 31, 2020 are as follows: 2021 $ 414,919 2022 357,630 2023 296,072 2024 233,409 2025 178,281 Thereafter 543,439 $ 2,023,750 Other Income The following table summarizes our other income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Ancillary $ 6,561 $ 11,016 $ 10,275 Fee related 7,544 11,682 9,527 Miscellaneous 3,631 5,153 7,245 Total other income $ 17,736 $ 27,851 $ 27,047 Ancillary: We seek to monetize our common areas through robust ancillary programs. These programs include destination holiday experiences, customer service programs, sponsored children's play areas and local events, and static and digital media initiatives. We enter into agreements with unrelated third parties under these programs and charge a negotiated fee in exchange for providing the unrelated third party access to the common area as defined under the respective agreements. We recognize the fee as revenue as we satisfy our performance obligations, which typically occurs over one year. Fee related: We collect fee income primarily from our unconsolidated joint ventures in exchange for providing management, leasing, and development services. Management fees are charged as a percentage of revenues (as defined in the applicable management agreements) and are recognized as revenue as we render such services. Leasing fees are charged on a fixed amount per square foot signed or a percentage of net rent negotiated within the underlying lease and are recognized upon lease execution. Development fees are charged on a contractual percentage of hard costs to develop the respective asset and are recognized as we satisfy our obligation to provide the development services. Miscellaneous: Miscellaneous income primarily relates to insurance proceeds received from property insurance claims and excess franchise tax refunds received for a previously-owned property. We recognize these items upon cash receipt.
Income and Other Taxes	Income and Other Taxes WPG Inc. has elected to be taxed as a REIT under Sections 856 through 860 of the Code and applicable Treasury regulations relating to REIT qualification. In order to maintain REIT status, the regulations require the entity to distribute at least 90% of taxable income, exclusive of net capital gains, to its owners and meet certain other asset and income tests as well as other requirements. WPG Inc. intends to continue to adhere to these requirements and maintain its REIT status and that of its REIT subsidiaries. As a REIT, WPG Inc. will generally not be liable for federal corporate income taxes as long as it continues to distribute at least of 100% of its taxable income. Thus, we made no provision for federal income taxes on WPG Inc. in the accompanying consolidated financial statements. If WPG Inc. fails to qualify as a REIT, it will be subject to tax at regular corporate rates for the years in which it failed to qualify. If WPG Inc. loses its REIT status it could not elect to be taxed as a REIT for four years unless its failure to qualify was due to reasonable cause and certain other conditions were satisfied. We have also elected taxable REIT subsidiary ("TRS") status for some of WPG Inc.'s subsidiaries. This enables us to provide services that would otherwise be considered impermissible for REITs and participate in activities that do not qualify as "rents from real property." For the years ended December 31, 2020, 2019 and 2018, we recorded federal income tax (benefits) provisions of $(1,874), $(79), and $525, respectively, related to the taxable income generated by the TRS entities, which is included in income and other taxes in the accompanying consolidated statements of operations and comprehensive (loss) income. For these entities, deferred tax assets and liabilities are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted tax rates to be in effect when the temporary differences reverse. As of December 31, 2020, the Company had a deferred tax liability of $1,100. As of December 31, 2019, the Company had a deferred tax asset of $410 as a result of federal and state net operating loss carryovers. A valuation allowance for deferred tax assets is provided if we believe all or some portion of the deferred tax asset may not be realized. An increase or decrease in the valuation allowance that results from the change in circumstances that causes a change in our judgment about the realizability of the related deferred tax asset is included in income. As of December 31, 2020 and 2019, the TRS valuation allowance for federal and state net operating loss carryovers was $0 and $410, respectively. As of December 31, 2020 and 2019, the TRS had no net deferred tax assets related to net operating loss carryovers. We are also subject to certain other taxes, including state and local taxes and franchise taxes, which are included in income and other taxes in the accompanying consolidated statements of operations and comprehensive (loss) income. For federal income tax purposes, the cash distributions paid to WPG Inc.'s common and preferred shareholders may be characterized as ordinary income, return of capital (generally non-taxable) or capital gains. Tax law permits certain characterization of distributions which could result in differences between cash basis and tax basis distribution amounts.
Redeemable Noncontrolling Interests for WPG Inc.	Redeemable Noncontrolling Interests for WPG Inc. At December 31, 2020 and 2019, redeemable noncontrolling interests represented the outstanding 130,592 units of WPG L.P. 7.3% Series I-1 Preferred Units (the "Series I-1 Preferred Units"). Dividends accrue quarterly at an annual rate of 7.3% per share. The unaffiliated third parties have, at their option, the right to have their equity purchased by the Company subject to the satisfaction of certain conditions.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents	The following is a summary of our cash, cash equivalents and restricted cash total as presented in our statements of cash flows for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Cash and cash equivalents $ 92,618 $ 41,421 $ 42,542 Restricted cash 37,614 34,054 18,542 Total cash, cash equivalents and restricted cash $ 130,232 $ 75,475 $ 61,084
Schedule of Deferred Costs and Other Assets	Deferred costs and other assets include the following as of December 31, 2020 and 2019: 2020 2019 Deferred leasing costs and corporate improvements, net $ 38,690 $ 53,729 In-place lease intangibles, net 19,173 27,538 Acquired above market lease intangibles, net 9,232 13,419 Mortgage and other escrow deposits 37,614 34,054 Seller financing receivable (1) — 55,000 Prepaids, notes receivable and other assets, net 25,015 21,294 $ 129,724 $ 205,034 (1) During the year ended December 31, 2019, the Company provided a $55.0 million bridge financing to certain counterparties as part of the our other indebtedness (see Note 6 - "Indebtedness" for further details) which was settled in 2020.
Deferred Leasing Costs and Corporate Improvements	Details of deferred leasing costs and corporate improvements as of December 31, 2020 and 2019 are as follows: 2020 2019 Deferred leasing costs $ 98,443 $ 121,363 Corporate improvements 6,099 6,099 Accumulated amortization (65,852) (73,733) Deferred lease costs and corporate improvements, net $ 38,690 $ 53,729
Operating Lease, Lease Income	The following table summarizes our rental income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Operating lease payments, fixed $ 478,589 $ 539,458 $ 592,481 Operating lease payments, variable 94,440 90,922 91,784 Amortization of straight-line rent, inducements, and rent abatements (17,538) 4,409 3,022 Net amortization/accretion of above and below-market leases 8,925 6,382 8,971 Change in estimate of collectibility of rental income (57,734) (7,538) (5,826) Total rental income $ 506,682 $ 633,633 $ 690,432
Schedule of Collectability of Operating Lease Receivables	The following table provides a rollforward of activity during the years ended December 31, 2020, 2019 and 2018 is as follows: For the Year Ended December 31, 2020 2019 2018 Balance, beginning of year $ 12,911 $ 10,131 $ 7,867 Change in estimate of collectibility of rental income 57,734 7,538 5,826 Accounts written off, net of recoveries, and other (9,223) (4,758) (3,562) Balance, end of year $ 61,422 $ 12,911 $ 10,131
Lessor, Operating Lease, Payments to be Received, Maturity	Future payments to be received under non-cancelable operating leases for each of the next five years and thereafter, excluding variable payments of tenant reimbursements, percentage or overage rents, and lease termination payments as of December 31, 2020 are as follows: 2021 $ 414,919 2022 357,630 2023 296,072 2024 233,409 2025 178,281 Thereafter 543,439 $ 2,023,750
Disaggregated Income	The following table summarizes our other income for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Ancillary $ 6,561 $ 11,016 $ 10,275 Fee related 7,544 11,682 9,527 Miscellaneous 3,631 5,153 7,245 Total other income $ 17,736 $ 27,851 $ 27,047
Distributions Paid On a Tax Basis	The following characterizes distributions paid per common and preferred share on a tax basis for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 $ % $ % $ % Common shares Ordinary income $ 1.1250 100.00 % $ 4.5009 50.01 % $ 9.0000 100.00 % Capital gain — — % 4.4991 49.99 — — % $ 1.1250 100.00 % $ 9.0000 100.00 % $ 9.0000 100.00 % Series H Preferred Shares Ordinary income $ 1.8752 100.00 % $ 0.9378 50.01 % $ 1.8752 100.00 % Capital gain — — % 0.9374 49.99 — — % $ 1.8752 100.00 % $ 1.8752 100.00 % $ 1.8752 100.00 % Series I Preferred Shares Ordinary income $ 1.7188 100.00 % $ 0.8596 50.01 % $ 1.7188 100.00 % Capital gain — — % 0.8592 49.99 — — % $ 1.7188 100.00 % $ 1.7188 100.00 % $ 1.7188 100.00 %
Movement in Minority Interest Roll Forward	Details of the carrying amount of WPG Inc.'s noncontrolling interests are as follows as of December 31, 2020 and 2019: 2020 2019 Limited partners' interests in WPG L.P. $ 60,351 $ 109,193 Noncontrolling interests in properties 997 1,033 Total noncontrolling interests $ 61,348 $ 110,226

Investment in Real Estate (Tabl

Investment in Real Estate (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Schedule of Real Estate Properties	Investment properties consisted of the following as of December 31, 2020 and 2019: 2020 2019 Land $ 801,056 $ 823,887 Buildings and improvements 4,966,739 4,974,330 Total land, buildings and improvements 5,767,795 5,798,217 Furniture, fixtures and equipment 106,006 104,189 Investment properties at cost 5,873,801 5,902,406 Less: accumulated depreciation 2,539,745 2,397,736 Investment properties at cost, net $ 3,334,056 $ 3,504,670 Construction in progress included above $ 185,275 $ 115,280
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the fair value allocation for the acquisitions, which was finalized during the three months ended June 30, 2018: Investment properties $ 72,647 Investment in and advances to unconsolidated entities, at equity 5,543 Deferred costs and other assets 10,311 Accounts payable, accrued expenses, intangibles, and deferred revenue (8,393) Net cash paid for acquisitions $ 80,108
Schedule of Dispositions	The following table summarizes the key terms of each of the closings that occurred during the year ended December 31, 2020: Sales Date Parcels Sold Purchase Price Sales Proceeds February 13, 2020 2 $ 1,961 $ 1,945 September 17, 2020 1 2,072 2,063 October 29, 2020 1 1,158 1,155 November 13, 2020 1 1,899 1,814 November 20, 2020 1 1,811 1,697 6 $ 8,901 $ 8,674 The following table summarizes the key terms of each of the closings with Four Corners that occurred during the year ended December 31, 2019: Sales Date Parcels Sold Purchase Price Sales Proceeds January 18, 2019 8 $ 9,435 $ 9,364 February 11, 2019 1 2,766 2,720 April 3, 2019 1 2,048 2,016 June 28, 2019 3 3,050 3,031 August 1, 2019 1 1,210 1,199 August 29, 2019 1 3,397 3,394 September 16, 2019 1 3,205 3,118 September 27, 2019 2 4,412 4,377 October 18, 2019 2 3,011 2,989 December 30, 2019 5 8,560 8,495 25 $ 41,094 $ 40,703 The following table summarizes the key terms of each of the closings with Four Corners that occurred during the year ended December 31, 2018: Sales Date Parcels Sold Purchase Price Sales Proceeds January 12, 2018 10 $ 13,692 $ 13,506 June 29, 2018 5 9,503 9,423 July 27, 2018 2 4,607 4,530 October 31, 2018 2 1,718 1,714 November 16, 2018 1 3,195 3,166 20 $ 32,715 $ 32,339
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table denotes the gross carrying values of the respective intangibles as of December 31, 2020 and 2019: Balance as of Intangible Asset/Liability December 31, 2020 December 31, 2019 Above-market leases - Company is lessor $ 27,471 $ 46,745 Below-market leases - Company is lessor $ 78,356 $ 108,345 In-place leases $ 74,903 $ 103,043 The table below identifies the types of intangible assets and liabilities, their location on the consolidated balance sheets, their weighted average amortization period, and their book value, which is net of accumulated amortization, as of December 31, 2020 and 2019: Balance as of Intangible Location on the Weighted Average Remaining Amortization (in years) December 31, 2020 December 31, 2019 Above-market leases - Company is lessor Deferred costs and other assets 7.6 $ 9,232 $ 13,419 Below-market leases - Company is lessor Accounts payable, accrued expenses, intangibles and deferred revenues 13.0 $ 41,773 $ 54,885 In-place leases Deferred costs and other assets 13.8 $ 19,173 $ 27,538
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The future net amortization of intangibles as an increase (decrease) to net income as of December 31, 2020 is as follows: Above/Below-Market Leases-Lessor In-place Leases Total Net Intangible Amortization 2021 $ 3,263 $ (2,957) $ 306 2022 3,240 (2,482) 758 2023 2,774 (2,006) 768 2024 2,870 (1,559) 1,311 2025 2,666 (1,165) 1,501 Thereafter 17,728 (9,004) 8,724 $ 32,541 $ (19,173) $ 13,368

Investment in Unconsolidated _2

Investment in Unconsolidated Entities, at Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	The following table presents the combined statements of operations for our joint ventures for the years ended December 31, 2020, 2019 and 2018: For the Year Ended December 31, 2020 2019 2018 Total revenues $ 211,468 $ 262,463 $ 262,410 Operating expenses 97,872 110,399 106,402 Depreciation and amortization 91,075 101,953 97,810 Operating income 22,521 50,111 58,198 Gain (loss) on sale of interests in property and unconsolidated entities, net 2,039 (1,288) 583 Gain on extinguishment of debt, net 15,698 — — Interest expense, taxes, and other, net (49,027) (61,523) (52,477) Net (loss) income from the Company's unconsolidated real estate entities $ (8,769) $ (12,700) $ 6,304 Our share of (loss) income from the Company's unconsolidated real estate entities $ (14,693) $ (1,499) $ 541
Schedule of Combined Balance Sheets for Unconsolidated Venture Properties	The following table presents the combined balance sheets of our joint ventures as of December 31, 2020 and 2019: December 31, 2020 2019 Assets: Investment properties at cost, net $ 1,829,481 $ 1,905,336 Construction in progress 50,794 38,280 Cash and cash equivalents 41,273 43,137 Tenant receivables and accrued revenue, net 45,877 31,238 Deferred costs and other assets (1) 295,121 301,133 Total assets $ 2,262,546 $ 2,319,124 Liabilities and Members’ Equity: Mortgage notes payable $ 1,214,679 $ 1,282,307 Accounts payable, accrued expenses, intangibles, and deferred revenues (2) 293,336 297,163 Total liabilities 1,508,015 1,579,470 Members’ equity 754,531 739,654 Total liabilities and members’ equity $ 2,262,546 $ 2,319,124 Our share of members’ equity, net $ 396,370 $ 384,332 Our share of members’ equity, net $ 396,370 $ 384,332 Advances and excess investment 19,969 17,339 Net investment in and advances to unconsolidated entities, at equity (3) $ 416,339 $ 401,671 (1) Includes value of acquired in-place leases and acquired above-market leases with a net book value of $68,028 and $79,457 as of December 31, 2020 and 2019, respectively. Additionally, includes ROU assets of $173,304 and $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2020 and 2019, respectively . (2) Includes the net book value of below market leases of $35,882 and $45,757 as of December 31, 2020 and 2019, respectively. Additionally, includes lease liabilities of $173,304 and $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2020 and 2019, respectively. (3) Includes $416,339 and $417,092 of investment in and advances to unconsolidated entities, at equity as of December 31, 2020 and 2019, respectively, and $0 and $15,421 of cash distributions and losses in unconsolidated entities, at equity as of December 31, 2020 and 2019, respectively.
Schedule of Forbearance Agreements	In response to the COVID-19 pandemic, the Company, on behalf of the O'Connor Joint Venture I and O'Connor Joint Venture II, executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Arbor Hills Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Arboretum, The Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Classen Curve & The Triangle at Classen Curve Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Gateway Centers Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Mall at Johnson City, The Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms ongoing Nichols Hills Plaza Interest and principal Interest and principal 3 months ended July 2020 Due at maturity (Jan. 1, 2023) Repayment terms satisfied Polaris Fashion Place Interest and principal Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Town Center Crossing Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Town Center Plaza Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Scottsdale Quarter (Blocks K & M) Interest only Interest 3 months ended July 2020 Commenced August 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied 1 Maturity dates noted include any applicable extension options available to the borrower. In response to the COVID-19 pandemic, the Company executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Forest Plaza, Lakeline Plaza, Muncie Towne Plaza, and White Oaks Plaza Interest only Interest 6 months ended October 2020 6 months commenced November 2020 Repayment terms ongoing Southgate Mall Interest only Interest 3 months ended July 2020 Due at maturity (Sept. 27, 2023) Repayment terms satisfied Town Center at Aurora Interest and principal Interest and principal 6 months ended October 2020 Commenced November 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied Westminster Mall Interest and principal Interest and principal 3 months ended August 2020, paid from escrows Not applicable Repayment terms satisfied Canyon View Marketplace Interest and principal Interest and principal 3 months ended July 2020 6 months commenced August 2020 Repayment terms satisfied Grand Central Mall Interest and principal Interest and principal 3 months ended August 2020 12 months commenced September 2020, but outstanding payments due at maturity (July 6, 2021) Repayment terms ongoing Lincolnwood Town Center Interest and principal Interest and principal 6 months ended October 2020 12 months commenced November 2020, but outstanding payments due at maturity (April 1, 2021) Repayment terms ongoing 1 Maturity dates noted include any applicable extension options available to the borrower.

Indebtedness (Tables)

Indebtedness (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Total mortgage indebtedness at December 31, 2020 and 2019 was as follows: 2020 2019 Face amount of mortgage loans $ 1,104,375 $ 1,117,242 Fair value adjustments, net 1,685 3,463 Debt issuance cost, net (4,407) (5,097) Carrying value of mortgage loans $ 1,101,653 $ 1,115,608
Roll Forward of Mortgage Indebtedness	A roll forward of mortgage indebtedness from December 31, 2019 to December 31, 2020 is summarized as follows: Balance at December 31, 2019 $ 1,115,608 Debt amortization payments (12,867) Issuance costs incurred upon debt modifications (744) Amortization of fair value and other adjustments (1,778) Amortization of debt issuance costs 1,434 Balance at December 31, 2020 $ 1,101,653
Schedule of Forbearance Agreements	In response to the COVID-19 pandemic, the Company, on behalf of the O'Connor Joint Venture I and O'Connor Joint Venture II, executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Arbor Hills Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Arboretum, The Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Classen Curve & The Triangle at Classen Curve Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Gateway Centers Interest only Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Mall at Johnson City, The Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms ongoing Nichols Hills Plaza Interest and principal Interest and principal 3 months ended July 2020 Due at maturity (Jan. 1, 2023) Repayment terms satisfied Polaris Fashion Place Interest and principal Interest 3 months ended July 2020 5 months commenced August 2020 Repayment terms satisfied Town Center Crossing Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Town Center Plaza Interest and principal Interest and principal 3 months ended July 2020 12 months commenced August 2020 Repayment terms satisfied Scottsdale Quarter (Blocks K & M) Interest only Interest 3 months ended July 2020 Commenced August 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied 1 Maturity dates noted include any applicable extension options available to the borrower. In response to the COVID-19 pandemic, the Company executed the following forbearance agreements related to various mortgage notes outstanding during the year ended December 31, 2020: Property Monthly Service Terms Description of Relief Duration of Forbearance Repayment Terms 1 Status as of December 31, 2020 Forest Plaza, Lakeline Plaza, Muncie Towne Plaza, and White Oaks Plaza Interest only Interest 6 months ended October 2020 6 months commenced November 2020 Repayment terms ongoing Southgate Mall Interest only Interest 3 months ended July 2020 Due at maturity (Sept. 27, 2023) Repayment terms satisfied Town Center at Aurora Interest and principal Interest and principal 6 months ended October 2020 Commenced November 2020 with payments made from excess property cash flow until repaid in full Repayment terms satisfied Westminster Mall Interest and principal Interest and principal 3 months ended August 2020, paid from escrows Not applicable Repayment terms satisfied Canyon View Marketplace Interest and principal Interest and principal 3 months ended July 2020 6 months commenced August 2020 Repayment terms satisfied Grand Central Mall Interest and principal Interest and principal 3 months ended August 2020 12 months commenced September 2020, but outstanding payments due at maturity (July 6, 2021) Repayment terms ongoing Lincolnwood Town Center Interest and principal Interest and principal 6 months ended October 2020 12 months commenced November 2020, but outstanding payments due at maturity (April 1, 2021) Repayment terms ongoing 1 Maturity dates noted include any applicable extension options available to the borrower.
Schedule of Debt	The following table identifies our total unsecured debt outstanding at December 31, 2020 and December 31, 2019: December 31, December 31, Notes payable: Face amount - the Exchange Notes (1) $ — $ 250,000 Face amount - Senior Notes due 2024 (2) 720,900 720,900 Debt discount, net (6,338) (7,864) Debt issuance costs, net (4,086) (5,470) Total carrying value of notes payable $ 710,476 $ 957,566 Term loans: (7) Face amount - Term Loan (3)(4) $ 350,000 $ 350,000 Face amount - December 2015 Term Loan (5) 340,000 340,000 Debt issuance costs, net (8,437) (3,358) Total carrying value of term loans $ 681,563 $ 686,642 Revolving credit facility: (3)(6) Face amount $ 647,000 $ 207,000 Debt issuance costs, net (7,024) (2,855) Total carrying value of revolving credit facility $ 639,976 $ 204,145 Other indebtedness: (8) Anticipated settlement amount $ 109,285 $ 109,285 Debt issuance costs, net (1,509) (1,561) Future accretion, net (19,969) (10,123) Total carrying value of other indebtedness $ 87,807 $ 97,601 (1) The Exchange Notes were issued at a 0.028% discount and bore interest at 3.850% per annum. (2) The Senior Notes due 2024 were issued at a 1.533% discount, bore interest at 5.950% per annum through August 14, 2019, at which time the interest rate increased to 6.450% per annum. The Senior Notes due 2024 mature on August 15, 2024. (3) The revolving credit facility, or "Revolver" and term loan, or "Term Loan" are collectively known as the "Facility." (4) The Term Loan bears interest at the greater of one-month LIBOR or 0.50% plus 2.60% per annum and will mature on December 30, 2022. We have interest rate swap agreements totaling $250.0 million, which effectively fix the interest rate on a portion of the Term Loan at 5.71% per annum through June 30, 2021. At December 31, 2020, the applicable interest rate on the unhedged portion of the Term Loan was 0.50% plus 2.60% or 3.10%. (5) The December 2015 Term Loan bears interest at the greater of one-month LIBOR or 0.50% plus 2.60% per annum and will mature on January 10, 2023. We have interest rate swap agreements totaling $340.0 million, which effectively fix the interest rate at 4.67% per annum through maturity. (6) The Revolver provides borrowings on a revolving basis up to $650.0 million, bears interest at the greater of one-month LIBOR or 0.50% plus 2.25% and will initially mature on December 30, 2021, subject to two six month extensions available at our option subject to compliance with terms of the Facility and payment of a customary extension fee. At December 31, 2020, we had an aggregate available borrowing capacity of $3.0 million under the Revolver. At December 31, 2020, the applicable interest rate on the Revolver was 0.50% plus 2.25%, or 2.75%. The interest rate on the Revolver could vary in the future based upon changes to the Company's credit ratings and leveraged levels. (7) While we have interest rate swap agreements in place that fix the LIBOR portion of the rates as noted above, the spread over LIBOR could vary in the future based upon changes to the Company's credit ratings and leveraged levels. (8) Represents the financial liability associated with our October 2019 failed sale and leaseback of land at Edison Mall, located in Fort Myers, Florida; Great Lakes Mall, located in Mentor, Ohio; Irving Mall, located in Irving, Texas; and Jefferson Valley Mall, located in Yorktown Heights, New York (collectively, the "Properties"). The master ground lease has a 99-year term and includes fixed annual payments at an initial annualized rate of 7.4%, with annual rent escalators over the aforementioned term. The anticipated settlement amount represents the year 30 repurchase option price of $109.3 million to reacquire the fee interest in the land at the Properties, to which the carrying value of the financial liability is being accreted to, through interest expense, during the repurchase period. Expense is being recognized utilizing an effective interest rate of 8.52% during the repurchase period.
Schedule of Line of Credit Facilities	The following table presents the borrowings and paydowns on the Revolver during the years ended December 31, 2020 and December 31, 2019: 2020 2019 Beginning Balance $ 207,000 $ 290,000 Borrowings 471,000 267,000 Paydowns (31,000) (350,000) Ending Balance $ 647,000 $ 207,000
Schedule of Maturities of Long-term Debt	Scheduled principal repayments on indebtedness (including extension options) as of December 31, 2020 are as follows: 2021 $ 308,729 2022 1,180,870 2023 406,414 2024 985,474 2025 3,417 Thereafter 386,656 Total principal maturities 3,271,560 Note discount (6,338) Fair value adjustments, net 1,685 Debt issuance costs, net (25,463) Future accretion of other indebtedness, net (19,969) Total mortgages and corporate indebtedness $ 3,221,475
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The book value and fair value of these financial instruments along with the related discount rate assumptions as of December 31, 2020 and 2019 are summarized as follows: 2020 2019 Book value of fixed- rate mortgages (1) $ 1,039,375 $ 1,052,242 Fair value of fixed-rate mortgages $ 1,057,727 $ 1,062,205 Weighted average discount rates assumed in calculation of fair value for fixed-rate mortgages 3.79 % 4.24 % Book value of fixed-rate corporate debt (1) $ 1,420,185 $ 1,660,062 Fair value of fixed-rate corporate debt $ 1,203,079 $ 1,673,105 Weighted average discount rates assumed in calculation of fair value for fixed-rate corporate debt 10.22 % 6.03 % (1) Excludes deferred financing fees and applicable debt discounts.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location	The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the consolidated balance sheet as of December 31, 2020 and 2019: Derivatives designated as hedging instruments: Balance Sheet December 31, 2020 December 31, 2019 Interest rate products Liability Derivatives Accounts payable, accrued expenses, intangibles and deferred revenues $ 14,380 $ 6,592
Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss)	The table below presents the effect of the Company's derivative financial instruments on the consolidated statements of operations and comprehensive (loss) income for the years ended December 31, 2020, 2019 and 2018: Derivatives in Cash Flow Hedging Relationships Location of Gain or (Loss) Recognized in Income on Derivatives For the Year Ended December 31, 2020 2019 2018 Amount of (Loss) or Gain Recognized in OCL on Derivative Interest expense $ (17,832) $ (13,363) $ 1,054 Amount of Loss or (Gain) Reclassified from AOCL into Income Interest expense $ 10,015 $ (739) $ (2,338) The table below presents the effect of the Company's derivative financial instruments on the consolidated statements of operations for the years ended December 31, 2020, 2019 and 2018: Effect of Cash Flow Hedges on Consolidated Statements of Operations For the year ended December 31, 2020 2019 2018 Total interest expense presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded $ (156,752) $ (153,382) $ (141,987) Amount of loss or (gain) reclassified from accumulated other comprehensive loss into interest expense $ 10,015 $ (739) $ (2,338)
Fair Value Measurements, Recurring and Nonrecurring	The tables below presents the Company’s net assets and (liabilities) measured at fair value as of December 31, 2020 and 2019 aggregated by the level in the fair value hierarchy within which those measurements fall: Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (Level 3) Balance at December 31, 2020 Derivative instruments, net $ — $ (14,380) $ — $ (14,380) Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (Level 3) Balance at December 31, 2019 Derivative instruments, net $ — $ (6,592) $ — $ (6,592)

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following table summarizes the issuance of the 2020 Annual Long-Term Incentive Awards, 2019 Annual Long-Term Incentive Awards, and 2018 Annual Long-Term Incentive Awards, respectively: 2020 Annual Long-Term Incentive Awards 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards Grant Date February 25, 2020 February 20, 2019 February 20, 2018 RSUs issued 152,610 63,581 65,223 Grant date fair value per unit $21.69 $51.93 $54.90 PSUs issued 152,610 63,581 65,223 Grant date fair value per unit $15.66 $44.82 $43.92 The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: 2020 Annual Long-Term Incentive Awards 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards Risk free rate 1.16% 2.45% 2.39% Volatility 41.63% 26.53% 24.70% The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: August 2, 2019 PSU Grant Risk free rate 1.66% Volatility 37.27%
Schedule of Nonvested Performance-based Units Activity	A summary of the status of the WPG PSUs at December 31, 2020 and changes during the year are presented below: Activity for the Year Ended December 31, 2020 PSUs Weighted Outstanding unvested at beginning of year 195,263 $ 41.40 PSUs granted 152,610 $ 15.66 PSUs forfeited (29,204) $ 69.48 Outstanding unvested at end of year 318,669 $ 26.50
Schedule of Nonvested Restricted Stock Units Activity	A summary of the status of the WPG RSUs at December 31, 2020 and changes during the year are presented below: Activity for the Year Ended December 31, 2020 RSUs Weighted Outstanding unvested at beginning of year 209,146 $ 47.86 RSUs granted 289,415 $ 14.36 RSUs vested (85,211) $ 55.28 RSUs forfeited (21,354) $ 9.85 Outstanding unvested at end of year 391,996 $ 23.59
Share-based Compensation, Stock Options, Activity	A summary of the status of the Company's option plans at December 31, 2020 and changes during the year are listed below: Activity for the Year Ended December 31, 2020 Stock Options Weighted Outstanding at beginning of year 66,941 $ 18.18 Options forfeited/expired (3,498) $ 44.28 Outstanding at end of year 63,443 $ 16.74
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	The following table summarizes information regarding the options outstanding at December 31, 2020: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $107.73 3,393 0.3 $107.73 3,393 0.3 $107.73 $114.03 5,388 1.4 $114.03 5,388 1.4 $114.03 $149.04 10,249 2.4 $149.04 10,249 2.4 $149.04 $117.90 6,852 3.3 $117.90 6,852 3.3 $117.90 $128.52 21,715 4.4 $128.52 21,715 4.4 $128.52 $89.55 15,846 5.4 $89.55 15,846 5.4 $89.55 63,443 3.7 $118.61 63,443 3.7 $118.61

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments	Future minimum lease payments due under these leases for each of the next five years and thereafter, excluding applicable extension options, as of December 31, 2020 are as follows: 2021 $ 2,069 2022 2,099 2023 1,427 2024 999 2025 1,008 Thereafter 19,370 Total lease payments 26,972 Less: Discount 15,728 Present value of lease liabilities $ 11,244

(Loss) Earnings Per Common Sh_2

(Loss) Earnings Per Common Share/Unit (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of WPG Inc.'s basic and diluted (loss) earnings per common share: For the Year Ended December 31, 2020 2019 2018 (Loss) Earnings Per Common Share, Basic: Net (loss) income attributable to common shareholders - basic $ (233,818) $ (9,758) $ 79,572 Weighted average shares outstanding - basic 21,173,364 20,938,381 20,855,149 (Loss) earnings per common share, basic $ (11.04) $ (0.47) $ 3.81 (Loss) Earnings Per Common Share, Diluted: Net (loss) income attributable to common shareholders - basic $ (233,818) $ (9,758) $ 79,572 Net (loss) income attributable to common unitholders (42,341) (1,799) 14,735 Net (loss) income attributable to common shareholders - diluted $ (276,159) $ (11,557) $ 94,307 Weighted average common shares outstanding - basic 21,173,364 20,938,381 20,855,149 Weighted average operating partnership units outstanding 3,834,258 3,858,890 3,855,975 Weighted average additional dilutive securities outstanding — — 67,075 Weighted average common shares outstanding - diluted 25,007,622 24,797,271 24,778,199 (Loss) earnings per common share, diluted $ (11.04) $ (0.47) $ 3.81 The following table sets forth the computation of WPG L.P.'s basic and diluted (loss) earnings per common unit: For the Year Ended December 31, 2020 2019 2018 (Loss) Earnings Per Common Unit, Basic and Diluted: Net (loss) income attributable to common unitholders - basic and diluted $ (276,159) $ (11,557) $ 94,307 Weighted average common units outstanding - basic 25,007,622 24,797,271 24,711,124 Weighted average additional dilutive securities outstanding — — 67,075 Weighted average shares outstanding - diluted 25,007,622 24,797,271 24,778,199 (Loss) earnings per common unit, basic and diluted $ (11.04) $ (0.47) $ 3.81

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	Quarterly 2020 and 2019 data is summarized in the table below. Quarterly amounts may not sum to annual amounts due to rounding. First Second Third Fourth 2020 Total revenue $ 152,600 $ 98,764 $ 123,682 $ 149,372 Net income (loss) $ 7,560 $ (93,413) $ (48,061) $ (127,910) Washington Prime Group Inc.: Net income (loss) attributable to the Company $ 6,883 $ (78,542) $ (40,229) $ (107,898) Net income (loss) attributable to common shareholders $ 3,375 $ (82,050) $ (43,737) $ (111,406) Earnings (loss) per common share—basic and diluted $ 0.16 $ (3.88) $ (2.06) $ (5.24) Washington Prime Group, L.P.: Net income (loss) attributable to unitholders $ 7,560 $ (93,413) $ (48,061) $ (127,910) Net income (loss) attributable to common unitholders $ 3,992 $ (96,981) $ (51,629) $ (131,541) Earnings (loss) per common unit—basic and diluted $ 0.16 $ (3.88) $ (2.06) $ (5.24) 2019 Total revenue $ 168,823 $ 161,434 $ 161,204 $ 170,023 Net (loss) income $ (2,563) $ (16,880) $ (1,665) $ 23,868 Washington Prime Group Inc.: Net (loss) income attributable to the Company $ (1,667) $ (13,754) $ (913) $ 20,608 Net (loss) income attributable to common shareholders $ (5,175) $ (17,262) $ (4,421) $ 17,100 (Loss) earnings per common share—basic and diluted $ (0.25) $ (0.82) $ (0.21) $ 0.81 Washington Prime Group, L.P.: Net (loss) income attributable to unitholders $ (2,563) $ (16,880) $ (1,665) $ 23,868 Net (loss) income attributable to common unitholders $ (6,131) $ (20,448) $ (5,233) $ 20,255 (Loss) earnings per common unit—basic and diluted $ (0.25) $ (0.82) $ (0.21) $ 0.81

Organization (Details)

Organization (Details) ft² in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)ft²shopping_center	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Real Estate Properties [Line Items]
Severance costs	$ 0.1
Severance and Restructuring
Real Estate Properties [Line Items]
Severance costs		$ 1.9	$ 2
Non-cash Items
Real Estate Properties [Line Items]
Severance costs		$ 0.1	$ 0.5
Shopping Centers
Real Estate Properties [Line Items]
Number of real estate properties | shopping_center	101
Area of real estate property | ft²	53

Basis of Presentation and Pri_2

Basis of Presentation and Principles of Consolidation (Details) $ in Thousands	Feb. 15, 2021USD ($)	Dec. 31, 2020USD ($)variable_interest_entitypropertyshopping_center	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 15, 2021
Real Estate Properties [Line Items]
Rent abatement		$ 24,100
Change in estimate of collectibility of rental income		$ 57,734	$ 7,538	$ 5,826
Minimum threshold ownership interest for properties included in financial statement		100.00%
Number of VIEs | variable_interest_entity		1
Washington Prime Inc | Washington Prime Group, L.P.
Real Estate Properties [Line Items]
Noncontrolling interest, ownership percentage by parent		84.80%	84.50%
Washington Prime Inc | Washington Prime Group, L.P. | Weighted Average
Real Estate Properties [Line Items]
Noncontrolling interest, ownership percentage by parent		84.70%	84.40%	84.40%
Wholly Owned Properties
Real Estate Properties [Line Items]
Number of real estate properties | property		85
Partially Owned Properties
Real Estate Properties [Line Items]
Number of real estate properties | property		4
Corporate Joint Venture
Real Estate Properties [Line Items]
Number of real estate properties | property		12
Shopping Centers
Real Estate Properties [Line Items]
Number of real estate properties | shopping_center		101
COVID-19 Pandemic
Real Estate Properties [Line Items]
Change in estimate of collectibility of rental income		$ 52,400
Subsequent Event | Washington Prime Inc | Washington Prime Group, L.P.
Real Estate Properties [Line Items]
Noncontrolling interest, ownership percentage by parent					97.90%
Senior Notes due 2024 | Notes Payable | Subsequent Event
Real Estate Properties [Line Items]
Debt instrument, interest payment	$ 23,200
Debt instrument, grace period	30 days

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Summary of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Cash and cash equivalents	$ 92,618	$ 41,421	$ 42,542
Restricted cash	37,614	34,054	18,542
Total cash, cash equivalents and restricted cash	$ 130,232	$ 75,475	$ 61,084	$ 70,201

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Investment Properties (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)propertysegment	Dec. 31, 2019USD ($)property	Dec. 31, 2018USD ($)
Real Estate [Line Items]
Interest costs capitalized | $	$ 7,163	$ 3,961	$ 2,234
Number of reportable segments | segment	1
Unconsolidated Properties
Real Estate [Line Items]
Number of real estate properties | property	12	13
Building and Building Improvements | Minimum
Real Estate [Line Items]
Property, plant and equipment, useful life	5 years
Building and Building Improvements | Maximum
Real Estate [Line Items]
Property, plant and equipment, useful life	40 years
Equipment and Fixture | Minimum
Real Estate [Line Items]
Property, plant and equipment, useful life	3 years
Equipment and Fixture | Maximum
Real Estate [Line Items]
Property, plant and equipment, useful life	10 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - New Accounting Pronouncements (Narrative) (Details) - Accounting Standards Update 2020-04 $ in Millions	Dec. 31, 2020USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt indexed to LIBOR	$ 812
Debt issuance costs	15.5
Long-term debt swapped To LIBOR plus fixed spread	$ 640.3

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Deferred Costs and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 22, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Deferred leasing costs and corporate improvements, net	$ 38,690		$ 53,729
In-place lease intangibles, net	19,173		27,538
Acquired above market lease intangibles, net	9,232		13,419
Mortgage and other escrow deposits	37,614		34,054
Seller financing receivable	0		55,000
Prepaids, notes receivable and other assets, net	25,015		21,294
Deferred costs and other assets	$ 129,724		205,034
Bridge financing		$ 30,000	$ 55,000

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Deferred Leasing Costs and Corporate Improvements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Deferred leasing costs	$ 98,443	$ 121,363
Corporate improvements	6,099	6,099
Accumulated amortization	(65,852)	(73,733)
Deferred lease costs and corporate improvements, net	38,690	53,729
Amortization of deferred leasing fees	$ 18,200	$ 24,500	$ 27,900

Summary of Significant Accoun_9

Summary of Significant Accounting Policies - Rental Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Operating lease payments, fixed	$ 478,589	$ 539,458	$ 592,481
Operating lease payments, variable	94,440	90,922	91,784
Amortization of straight-line rent, inducements, and rent abatements	(17,538)	4,409	3,022
Net amortization/accretion of above and below-market leases	8,925	6,382	8,971
Change in estimate of collectibility of rental income	(57,734)	(7,538)	(5,826)
Total rental income	$ 506,682	$ 633,633	$ 690,432

Summary of Significant Accou_10

Summary of Significant Accounting Policies - Rental Income (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lessor, Lease, Description [Line Items]
Rent abatement	$ 24,100
Change in estimate of collectibility of rental income	57,734	$ 7,538	$ 5,826
COVID-19 Pandemic
Lessor, Lease, Description [Line Items]
Change in estimate of collectibility of rental income	$ 52,400

Summary of Significant Accou_11

Summary of Significant Accounting Policies - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Activity Relating to Collectibility of Operating Lease Payments [Roll Forward]
Balance, beginning of year	$ 12,911	$ 10,131	$ 7,867
Change in estimate of collectibility of rental income	57,734	7,538	5,826
Accounts written off, net of recoveries, and other	(9,223)	(4,758)	(3,562)
Balance, end of year	$ 61,422	$ 12,911	$ 10,131

Summary of Significant Accou_12

Summary of Significant Accounting Policies - Lessor, Operating Lease, Payments to be Received, Maturity (Details) $ in Thousands	Dec. 31, 2020USD ($)
Accounting Policies [Abstract]
2021	$ 414,919
2022	357,630
2023	296,072
2024	233,409
2025	178,281
Thereafter	543,439
Operating lease payments to be received	$ 2,023,750

Summary of Significant Accou_13

Summary of Significant Accounting Policies - Other Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total other income	$ 17,736	$ 27,851	$ 27,047
Ancillary
Disaggregation of Revenue [Line Items]
Total other income	6,561	11,016	10,275
Fee related
Disaggregation of Revenue [Line Items]
Total other income	7,544	11,682	9,527
Miscellaneous
Disaggregation of Revenue [Line Items]
Total other income	$ 3,631	$ 5,153	$ 7,245

Summary of Significant Accou_14

Summary of Significant Accounting Policies - Income and Other Taxes (Narrative) (Details) - Taxable Real Estate Investment Trust Subsidiaries - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Contingency [Line Items]
Deferred tax liability	$ 1,100,000
Deferred tax assets, operating loss carryforwards		$ 410,000
Operating loss carryforwards, valuation allowance	0	410,000
Deferred tax assets, net of valuation allowance	0	0
Income and Other Taxes
Income Tax Contingency [Line Items]
Federal income tax expense (benefit)	$ (1,874,000)	$ (79,000)	$ 525,000

Summary of Significant Accou_15

Summary of Significant Accounting Policies - Distributions Paid Per Common and Preferred Share On a Tax Basis (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Common Stock
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 1.1250	$ 4.5009	$ 9
Capital gain (in dollars per share)	0	4.4991	0
Distributions, per share (in dollars per share)	$ 1.1250	$ 9	$ 9
Distributions, per share, ordinary income, percentage	100.00%	50.01%	100.00%
Capital gain, percentage	0.00%	49.99%	0.00%
Distributions, per share, percentage	100.00%	100.00%	100.00%
Preferred Series H
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 1.8752	$ 0.9378	$ 1.8752
Capital gain (in dollars per share)	0	0.9374	0
Distributions, per share (in dollars per share)	$ 1.8752	$ 1.8752	$ 1.8752
Distributions, per share, ordinary income, percentage	100.00%	50.01%	100.00%
Capital gain, percentage	0.00%	49.99%	0.00%
Distributions, per share, percentage	100.00%	100.00%	100.00%
Preferred Series I
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 1.7188	$ 0.8596	$ 1.7188
Capital gain (in dollars per share)	0	0.8592	0
Distributions, per share (in dollars per share)	$ 1.7188	$ 1.7188	$ 1.7188
Distributions, per share, ordinary income, percentage	100.00%	50.01%	100.00%
Capital gain, percentage	0.00%	49.99%	0.00%
Distributions, per share, percentage	100.00%	100.00%	100.00%

Summary of Significant Accou_16

Summary of Significant Accounting Policies - Carrying Amount of WPG Incs.'s Noncontrolling Interests (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Limited partners' interests in WPG L.P.	$ 60,351	$ 109,193
Noncontrolling interests in properties	997	1,033
Total noncontrolling interests	$ 61,348	$ 110,226

Summary of Significant Accou_17

Summary of Significant Accounting Policies - Redeemable Noncontrolling Interests for WPG Inc. (Narrative) (Details) - Series I-1 Preferred Units - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Noncontrolling Interest [Line Items]
Preferred units, outstanding (in shares)	130,592	130,592
Preferred stock dividend rate	7.30%	7.30%

Investment in Real Estate - Inv

Investment in Real Estate - Investment Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Business Combinations [Abstract]
Land	$ 801,056	$ 823,887
Buildings and improvements	4,966,739	4,974,330
Total land, buildings and improvements	5,767,795	5,798,217
Furniture, fixtures and equipment	106,006	104,189
Investment properties at cost	5,873,801	5,902,406
Less: accumulated depreciation	2,539,745	2,397,736
Investment properties at cost, net	3,334,056	3,504,670
Construction in progress included above	$ 185,275	$ 115,280

Investment in Real Estate - 201

Investment in Real Estate - 2018 Acquisitions (Narrative) (Details) $ in Millions	Apr. 11, 2018USD ($)store	Jun. 30, 2018USD ($)	Apr. 24, 2018USD ($)
Business Acquisition [Line Items]
Below market lease, acquired		$ 4.9
Below market lease, weighted average useful life		9 years 7 months 6 days
Asset acquisition capitalized transaction costs		$ 0.6
Above Market Leases and Lease in Place
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		$ 10.3
Weighted average useful life		11 years 6 months
Sears Department Stores and Auto Centers
Business Acquisition [Line Items]
Stores acquired | store	4
Purchase price	$ 28.5
Proceeds from credit facility to fund asset acquisition	13.4
Proceeds from sale of real estate to fund asset acquisition	9.7
Proceeds from joint venture to fund asset acquisition	$ 5.4
Southgate Mall, Missoula, Montana
Business Acquisition [Line Items]
Purchase price			$ 58

Investment in Real Estate - Sum

Investment in Real Estate - Summary of Purchase Price Allocation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Combinations [Abstract]
Investment properties	$ 72,647
Investment in and advances to unconsolidated entities, at equity	5,543
Deferred costs and other assets	10,311
Accounts payable, accrued expenses, intangibles, and deferred revenue	(8,393)
Net cash paid for acquisitions	$ 80,108	$ 0	$ 0	$ 80,108

Investment in Real Estate - 202

Investment in Real Estate - 2020 Dispositions (Narrative) (Details)	Jan. 31, 2020USD ($)	Jan. 14, 2020USD ($)	Dec. 31, 2020USD ($)purchase_and_sale_agreement	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition of interests in properties, net			$ 31,945,000	$ 38,373,000	$ 24,602,000
Undeveloped Land Parcels and Developed Outparcels
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales Proceeds			3,500,000	8,200,000
Aggregate sales price			$ 4,300,000	$ 8,800,000
Four Corners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of purchase and sale agreements | purchase_and_sale_agreement			2
Real estate deal amount remaining to close, first purchase agreement			$ 0
Real estate deal amount remaining to close, second purchase agreement			$ 19,100,000
Disposed of by Sale, Not Discontinued Operations | DeKalb Plaza
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 13,600,000
Sales Proceeds	$ 13,400,000
Disposed of by Sale, Not Discontinued Operations | Matteson Plaza
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received		$ 1,100,000
Sales Proceeds		$ 400,000

Investment in Real Estate - Key

Investment in Real Estate - Key Terms of Each of the Closings (Details) - Restaurant Outparcels $ in Thousands	Nov. 20, 2020USD ($)outparcel	Nov. 13, 2020USD ($)outparcel	Oct. 29, 2020USD ($)outparcel	Sep. 17, 2020USD ($)outparcel	Feb. 13, 2020USD ($)outparcel	Dec. 30, 2019USD ($)outparcel	Oct. 18, 2019USD ($)outparcel	Sep. 27, 2019USD ($)outparcel	Sep. 16, 2019USD ($)outparcel	Aug. 29, 2019USD ($)outparcel	Aug. 01, 2019USD ($)outparcel	Jun. 28, 2019USD ($)outparcel	Apr. 03, 2019USD ($)outparcel	Feb. 11, 2019USD ($)outparcel	Jan. 18, 2019USD ($)outparcel	Nov. 16, 2018USD ($)outparcel	Oct. 31, 2018USD ($)outparcel	Jul. 27, 2018USD ($)outparcel	Jun. 29, 2018USD ($)outparcel	Jan. 12, 2018USD ($)outparcel	Dec. 31, 2020USD ($)outparcel	Dec. 31, 2019USD ($)outparcel	Dec. 31, 2018USD ($)outparcel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Parcels Sold | outparcel	1	1	1	1	2	5	2	2	1	1	1	3	1	1	8	1	2	2	5	10	6	25	20
Purchase Price	$ 1,811	$ 1,899	$ 1,158	$ 2,072	$ 1,961	$ 8,560	$ 3,011	$ 4,412	$ 3,205	$ 3,397	$ 1,210	$ 3,050	$ 2,048	$ 2,766	$ 9,435	$ 3,195	$ 1,718	$ 4,607	$ 9,503	$ 13,692	$ 8,901	$ 41,094	$ 32,715
Sales Proceeds	$ 1,697	$ 1,814	$ 1,155	$ 2,063	$ 1,945	$ 8,495	$ 2,989	$ 4,377	$ 3,118	$ 3,394	$ 1,199	$ 3,031	$ 2,016	$ 2,720	$ 9,364	$ 3,166	$ 1,714	$ 4,530	$ 9,423	$ 13,506	$ 8,674	$ 40,703	$ 32,339

Investment in Real Estate - 2_2

Investment in Real Estate - 2019 Dispositions (Narrative) (Details) - USD ($) $ in Thousands	Dec. 19, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition of interests in properties, net		$ 31,945	$ 38,373	$ 24,602
Four Corners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition of assets			38,400
Undeveloped Land Parcels and Developed Outparcels
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales Proceeds		3,500	8,200
Aggregate sales price		$ 4,300	$ 8,800
Charles Towne Square
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 5,000
Sales Proceeds	$ 4,600

Investment in Real Estate - 2_3

Investment in Real Estate - 2018 Dispositions (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Combinations [Abstract]
Gain on disposition of interests in properties, net	$ 31,945	$ 38,373	$ 24,602

Investment in Real Estate - Int

Investment in Real Estate - Intangible Assets and Liabilities Associated with Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Above-market leases - Company is lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	$ 27,471	$ 46,745
Below-market leases - Company is lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	78,356	108,345
In-place leases
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	74,903	103,043
Amortization of intangible assets	8,362	11,409	$ 14,780
Above/Below-Market Leases-Lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization as a net increase to minimum rents in the amounts	$ 8,925	$ 6,382	$ 8,971

Investment in Real Estate - I_2

Investment in Real Estate - Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Above-market leases - Company is lessor | Deferred costs and other assets
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization (in years)	7 years 7 months 6 days
Intangible Asset/Liability	$ 9,232	$ 13,419
Below-market leases - Company is lessor | Accounts payable, accrued expenses, intangibles and deferred revenues
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization (in years)	13 years
Intangible Asset/Liability	$ 41,773	54,885
In-place leases | Deferred costs and other assets
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization (in years)	13 years 9 months 18 days
Intangible Asset/Liability	$ 19,173	$ 27,538

Investment in Real Estate - Net

Investment in Real Estate - Net Amortization of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total Net Intangible Amortization, 2021	$ 306
Total Net Intangible Amortization, 2022	758
Total Net Intangible Amortization, 2023	768
Total Net Intangible Amortization, 2024	1,311
Total Net Intangible Amortization, 2025	1,501
Total Net Intangible Amortization, Thereafter	8,724
In-place Leases	(17,538)	$ 4,409	$ 3,022
Total Net Intangible Amortization	13,368
Above/Below-Market Leases-Lessor
Finite-Lived Intangible Assets [Line Items]
Above/Below-Market Leases-Lessor, 2021	3,263
Above/Below-Market Leases-Lessor, 2022	3,240
Above/Below-Market Leases-Lessor, 2023	2,774
Above/Below-Market Leases-Lessor, 2024	2,870
Above/Below-Market Leases-Lessor, 2025	2,666
Above/Below-Market Leases-Lessor, Thereafter	17,728
Above/Below-Market Leases-Lessor	32,541
In-place leases
Finite-Lived Intangible Assets [Line Items]
In-place Leases, 2021	(2,957)
In-place Leases, 2022	(2,482)
In-place Leases, 2023	(2,006)
In-place Leases, 2024	(1,559)
In-place Leases, 2025	(1,165)
In-place Leases, Thereafter	(9,004)
In-place Leases	$ (19,173)

Investment in Real Estate - Imp

Investment in Real Estate - Impairment (Narrative) (Details) $ in Thousands	3 Months Ended						12 Months Ended
	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Impairment of real estate							$ 135,151	$ 35,256	$ 0
One Enclosed Retail Properties and One Open Air Property
Business Acquisition [Line Items]
Asset impairment charges	$ 109,000					$ 28,900
Fair value of properties	$ 48,100					$ 21,000	$ 48,100
One Enclosed Retail Properties and One Open Air Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Business Acquisition [Line Items]
Measurement input						0.185
One Enclosed Retail Properties and One Open Air Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate
Business Acquisition [Line Items]
Measurement input						0.155
One Enclosed Retail Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Business Acquisition [Line Items]
Measurement input	0.145						0.145
One Enclosed Retail Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate
Business Acquisition [Line Items]
Measurement input	0.140						0.140
Open Air Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Business Acquisition [Line Items]
Measurement input	0.118						0.118
Open Air Property | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate
Business Acquisition [Line Items]
Measurement input	0.113						0.113
Single Tenant Outparcel in Topeka, Kansas
Business Acquisition [Line Items]
Asset impairment charges		$ 1,100
Two Enclosed Retail Properties
Business Acquisition [Line Items]
Asset impairment charges			$ 23,800
Fair value of properties			$ 12,600
Two Enclosed Retail Properties | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate | Minimum
Business Acquisition [Line Items]
Measurement input			0.188
Two Enclosed Retail Properties | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate | Maximum
Business Acquisition [Line Items]
Measurement input			0.193
Two Enclosed Retail Properties | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate | Minimum
Business Acquisition [Line Items]
Measurement input			0.168
Two Enclosed Retail Properties | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate | Maximum
Business Acquisition [Line Items]
Measurement input			0.173
Georgesville Square and Single Tenant Outparcel in Topeka
Business Acquisition [Line Items]
Asset impairment charges				$ 1,300
Charlottesville Fashion Square
Business Acquisition [Line Items]
Real estate property fair value					$ 19,800			19,800
Real estate property carrying value					26,100			$ 26,100
Impairment of real estate					$ 6,300
Charlottesville Fashion Square | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Business Acquisition [Line Items]
Measurement input					0.185			0.185
Charlottesville Fashion Square | Valuation Technique, Discounted Cash Flow | Measurement Input, Cap Rate
Business Acquisition [Line Items]
Measurement input					0.155			0.155

Investment in Unconsolidated _3

Investment in Unconsolidated Entities, at Equity - (Narrative) (Details) - Equity Method Investment ft² in Millions, $ in Millions	May 06, 2020USD ($)extension	Mar. 13, 2020USD ($)	Dec. 31, 2020USD ($)ft²property	Dec. 31, 2019USD ($)	Dec. 31, 2017property
Schedule of Equity Method Investments [Line Items]
Advances and excess investment			$ 0.3	$ 0.5
Advances to affiliate, anticipated repayment term			1 year
O'Connor Joint Venture II
Schedule of Equity Method Investments [Line Items]
Ownership percentage					51.00%
Number of real estate properties | property					7
The Seminole Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage			45.00%
Effective financial interest			0.00%
Gain related to cash distributions and losses in joint venture		$ 15.4
The Seminole Joint Venture | Seminole Town Center
Schedule of Equity Method Investments [Line Items]
Area of real estate property | ft²			1.1
Other Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage			12.50%
O'Connor Mall Partners LP | O'Connor Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage			51.00%
Number of real estate properties | property			5
Debt instrument number of extension options | extension	2
Debt instrument period of extension option	1 year
Principal prepayment of mortgage loan on extension	$ 5
Funding of reserve accounts	$ 10

Investment in Unconsolidated _4

Investment in Unconsolidated Entities, at Equity - Combined Statements of Operations for the Unconsolidated Joint Venture Properties (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Total revenues	$ 149,372	$ 123,682	$ 98,764	$ 152,600	$ 170,023	$ 161,204	$ 161,434	$ 168,823	$ 524,418	$ 661,484	$ 717,479
Operating expenses									636,603	604,580	541,843
Depreciation and amortization									229,064	271,320	257,796
Gain (loss) on sale of interests in property and unconsolidated entities, net									31,945	38,373	24,602
Gain on extinguishment of debt, net									0	63,660	51,395
Net (loss) income	$ (127,910)	$ (48,061)	$ (93,413)	$ 7,560	$ 23,868	$ (1,665)	$ (16,880)	$ (2,563)	(261,824)	2,760	108,655
Our share of (loss) income from the Company's unconsolidated real estate entities									(14,693)	(1,499)	541
Equity Method Investment
Schedule of Equity Method Investments [Line Items]
Total revenues									211,468	262,463	262,410
Operating expenses									97,872	110,399	106,402
Depreciation and amortization									91,075	101,953	97,810
Operating income									22,521	50,111	58,198
Gain (loss) on sale of interests in property and unconsolidated entities, net									2,039	(1,288)	583
Gain on extinguishment of debt, net									15,698	0	0
Interest expense, taxes, and other, net									(49,027)	(61,523)	(52,477)
Net (loss) income									$ (8,769)	$ (12,700)	$ 6,304

Investment in Unconsolidated _5

Investment in Unconsolidated Entities, at Equity - Combined Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Investment properties at cost, net	$ 3,334,056	$ 3,504,670
Cash and cash equivalents	92,618	41,421	$ 42,542
Tenant receivables and accrued revenue, net	132,610	82,762
Deferred costs and other assets	129,724	205,034
Total assets	4,105,347	4,250,979
Liabilities and Members’ Equity:
Mortgage notes payable	1,101,653	1,115,608
Accounts payable, accrued expenses, intangibles, and deferred revenues	276,086	260,904
Total liabilities	3,500,884	3,341,139
Members’ equity	61,348	110,226
Total liabilities, redeemable noncontrolling interests and equity	4,105,347	4,250,979
Our share of members’ equity, net	416,339	417,092
Operating lease, liability	11,244
Cash distributions and losses in unconsolidated entities, at equity	0	15,421
Equity Method Investment
Liabilities and Members’ Equity:
Our share of members’ equity, net	416,339	417,092
Acquired in place and above market leases	68,028	79,457
Below market lease, net	35,882	45,757
Cash distributions and losses in unconsolidated entities, at equity	0	15,421
O'Connor Joint Venture I, O'Connor Joint Venture II, the Seminole Joint Venture, and Other Interests
Liabilities and Members’ Equity:
Net investment in and advances to unconsolidated entities, at equity	416,339	401,671
O'Connor Joint Venture I, O'Connor Joint Venture II, the Seminole Joint Venture, and Other Interests | Equity Method Investment
ASSETS:
Investment properties at cost, net	1,829,481	1,905,336
Construction in progress	50,794	38,280
Cash and cash equivalents	41,273	43,137
Tenant receivables and accrued revenue, net	45,877	31,238
Deferred costs and other assets	295,121	301,133
Total assets	2,262,546	2,319,124
Liabilities and Members’ Equity:
Mortgage notes payable	1,214,679	1,282,307
Accounts payable, accrued expenses, intangibles, and deferred revenues	293,336	297,163
Total liabilities	1,508,015	1,579,470
Members’ equity	754,531	739,654
Total liabilities, redeemable noncontrolling interests and equity	2,262,546	2,319,124
Our share of members’ equity, net	396,370	384,332
Advances and excess investment	19,969	17,339
Operating lease, right-of-use asset	173,304	172,991
Operating lease, liability	$ 173,304	$ 172,991

Investment in Unconsolidated _6

Investment in Unconsolidated Entities, at Equity - Forbearance Agreements of Debt Related to Various Mortgage Notes Outstanding (Details) - Mortgages	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 years 7 months 6 days	4 years 6 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Arbor Hills
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	12 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Arboretum, The
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	5 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Classen Curve & The Triangle at Classen Curve
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	5 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Gateway Centers
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	5 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Mall at Johnson City, The
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	12 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Nichols Hills Plaza
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Polaris Fashion Place
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	5 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Town Center Crossing
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	12 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Town Center Plaza
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	12 months
Forbearance | O'Connor Joint Venture I and O'Connor Joint Venture II | Scottsdale Quarter (Blocks K & M)
Schedule of Equity Method Investments [Line Items]
Debt instrument, term	3 months

Indebtedness - Mortgage Debt (D

Indebtedness - Mortgage Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Aug. 13, 2020
Debt Instrument [Line Items]
Face amount of mortgage loans	$ 3,271,560
Fair value adjustments, net	(6,338)
Debt issuance cost, net	$ (25,463)		$ (13,000)
Weighted average interest rate	4.68%	4.61%
Mortgages
Debt Instrument [Line Items]
Face amount of mortgage loans	$ 1,104,375	$ 1,117,242
Fair value adjustments, net	1,685	3,463
Debt issuance cost, net	(4,407)	(5,097)
Carrying value of mortgage loans	$ 1,101,653	$ 1,115,608
Debt instrument term	3 years 7 months 6 days	4 years 6 months

Indebtedness - Roll Forward of

Indebtedness - Roll Forward of Mortgage Indebtedness (Details) - Mortgages $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Mortgage Debt [Roll Forward]
Balance at December 31, 2019	$ 1,115,608
Debt amortization payments	(12,867)
Issuance costs incurred upon debt modifications	(744)
Amortization of fair value and other adjustments	(1,778)
Amortization of debt issuance costs	1,434
Balance at December 31, 2020	$ 1,101,653

Indebtedness - Forbearance Agre

Indebtedness - Forbearance Agreements on Various Mortgage Notes Outstanding (Details) - Mortgages	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt instrument, term	3 years 7 months 6 days	4 years 6 months
Forbearance | Forest Plaza, Lakeline Plaza, Muncie Towne Plaza, and White Oaks Plaza
Debt Instrument [Line Items]
Debt instrument, term	6 months
Debt instrument, repayment term	6 months
Forbearance | Southgate Mall
Debt Instrument [Line Items]
Debt instrument, term	3 months
Forbearance | Town Center at Aurora
Debt Instrument [Line Items]
Debt instrument, term	6 months
Forbearance | Westminster Mall
Debt Instrument [Line Items]
Debt instrument, term	3 months
Forbearance | Canyon View Marketplace
Debt Instrument [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	6 months
Forbearance | Grand Central Mall
Debt Instrument [Line Items]
Debt instrument, term	3 months
Debt instrument, repayment term	12 months
Forbearance | Lincolnwood Town Center
Debt Instrument [Line Items]
Debt instrument, term	6 months
Debt instrument, repayment term	12 months

Indebtedness - 2020 Activity (N

Indebtedness - 2020 Activity (Narrative) (Details)	Apr. 03, 2020extension	Feb. 14, 2020USD ($)extension	Apr. 08, 2019USD ($)extension	Apr. 01, 2019USD ($)extension	Feb. 25, 2021	Aug. 13, 2020USD ($)
Weberstown Mall
Debt Instrument [Line Items]
Debt instrument period of extension option	1 year
Debt instrument number of extension options | extension	3		3
Debt face amount | $			$ 65,000,000			$ 65,000,000
Town Center at Aurora
Debt Instrument [Line Items]
Debt instrument period of extension option		1 year
Debt instrument number of extension options | extension		2		2
Debt face amount | $		$ 51,000,000		$ 52,000,000
Additional of extension option		1 year
Grand Central Mall | Forbearance | Mortgages | Subsequent Event
Debt Instrument [Line Items]
Debt instrument period of extension option					1 year

Indebtedness - 2019 Activity (N

Indebtedness - 2019 Activity (Narrative) (Details)	Apr. 03, 2020extension	Feb. 14, 2020USD ($)extension	Sep. 16, 2019USD ($)	Apr. 16, 2019USD ($)	Apr. 08, 2019USD ($)extension	Apr. 01, 2019USD ($)extension	Aug. 13, 2020USD ($)	Dec. 18, 2019USD ($)	Jul. 01, 2019USD ($)	Nov. 19, 2018USD ($)	Apr. 11, 2018USD ($)
Affiliate
Debt Instrument [Line Items]
Repayments of debt			$ 47,200,000
Stated interest rate			7.50%
West Ridge Mall
Debt Instrument [Line Items]
Default amount								$ 49,500,000		$ 49,500,000
Fixed Rate Cross Collateralized Pool | Affiliate
Debt Instrument [Line Items]
Stated interest rate			3.67%
Debt face amount			$ 117,000,000
Towne West Square
Debt Instrument [Line Items]
Default amount									$ 45,200,000		$ 45,200,000
Waterford Lakes Town Center | Affiliate
Debt Instrument [Line Items]
Stated interest rate				4.86%
Debt face amount				$ 180,000,000
Debt instrument term				10 years
Weberstown Mall
Debt Instrument [Line Items]
Debt face amount					$ 65,000,000		$ 65,000,000
Debt instrument number of extension options | extension	3				3
Debt instrument term					1 year
Town Center at Aurora
Debt Instrument [Line Items]
Debt face amount		$ 51,000,000				$ 52,000,000
Debt instrument number of extension options | extension		2				2
Debt instrument term						1 year

Indebtedness - Corporate Debt (

Indebtedness - Corporate Debt (Narrative) (Details) - USD ($)	Aug. 13, 2020	Jun. 22, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Apr. 08, 2019
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Debt issuance costs	$ 13,000,000		$ 25,463,000
Bridge financing		$ 30,000,000		$ 55,000,000
Debt instrument payment method		$ 15,700,000
Debt instrument payment terms		27 months
Impairment on the note receivable		$ 11,200,000
Gain on extinguishment of debt, net			$ 0	63,660,000	$ 51,395,000
Minimum
Debt Instrument [Line Items]
Basis spread rate	1.80%
Maximum
Debt Instrument [Line Items]
Basis spread rate	2.35%
Weberstown Mall
Debt Instrument [Line Items]
Debt face amount	$ 65,000,000					$ 65,000,000
Weberstown Mall | Secured Debt
Debt Instrument [Line Items]
Debt face amount	65,000,000
Amended Credit Facility and Term Loans
Debt Instrument [Line Items]
Debt face amount	$ 1,400,000,000
Amended Credit Facility and Term Loans | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Amended Credit Facility and Term Loans | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread rate	2.00%
Amended Credit Facility and Term Loans | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread rate	2.60%
Amended Credit Facility and Term Loans | Secured Debt
Debt Instrument [Line Items]
Debt face amount	$ 1,000,000,000
Bridge Loan
Debt Instrument [Line Items]
Debt face amount		$ 55,000,000
Senior Notes due 2024
Debt Instrument [Line Items]
Repayments of debt				29,100,000
Gain on extinguishment of debt, net				$ 1,200,000

Indebtedness - Unsecured Debt O

Indebtedness - Unsecured Debt Outstanding (Details)	12 Months Ended
	Dec. 31, 2020USD ($)extension	Dec. 31, 2019USD ($)	Aug. 13, 2020USD ($)
Debt Instrument [Line Items]
Face amount	$ 3,271,560,000
Debt discount, net	(6,338,000)
Debt issuance cost, net	$ (25,463,000)		$ (13,000,000)
Interest rate effective percentage	8.52%
Ground lease term	99 years
Ground lease, fixed payments, annualized rate	7.40%
Year for option to repurchase	30 years
Ground lease repurchase fee interest	$ 109,300,000
After August 14, 2019
Debt Instrument [Line Items]
Stated interest rate	6.45%
Revolving credit facility
Debt Instrument [Line Items]
Face amount	$ 647,000,000	$ 207,000,000
Debt issuance cost, net	(7,024,000)	(2,855,000)
Total mortgages and corporate indebtedness	$ 639,976,000	204,145,000
Basis spread rate	2.25%
Interest rate effective percentage	2.75%
Line of credit, maximum borrowing capacity	$ 650,000,000
Number of extension options | extension	2
Debt instrument period of extension option	6 months
Remaining borrowing capacity	$ 3,000,000
LIBOR | Revolving credit facility
Debt Instrument [Line Items]
Basis spread rate	0.50%
Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread rate	0.50%
December 2015 Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread rate	0.50%
Notes Payable
Debt Instrument [Line Items]
Debt discount, net	$ (6,338,000)	(7,864,000)
Debt issuance cost, net	(4,086,000)	(5,470,000)
Total mortgages and corporate indebtedness	710,476,000	957,566,000
Notes Payable | Exchange Notes
Debt Instrument [Line Items]
Face amount	$ 0	250,000,000
Discount rate	0.028%
Stated interest rate	3.85%
Notes Payable | Senior Notes due 2024
Debt Instrument [Line Items]
Face amount	$ 720,900,000	720,900,000
Discount rate	1.533%
Notes Payable | Senior Notes due 2024 | Through August 14, 2019
Debt Instrument [Line Items]
Stated interest rate	5.95%
Unsecured term loans
Debt Instrument [Line Items]
Debt issuance cost, net	$ (8,437,000)	(3,358,000)
Total mortgages and corporate indebtedness	681,563,000	686,642,000
Unsecured term loans | Term Loan
Debt Instrument [Line Items]
Face amount	350,000,000	350,000,000
Notional amount	$ 250,000,000
Derivative fixed interest rate	5.71%
Interest rate effective percentage	3.10%
Unsecured term loans | Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread rate	2.60%
Unsecured term loans | December 2015 Term Loan
Debt Instrument [Line Items]
Face amount	$ 340,000,000	340,000,000
Notional amount	$ 340,000,000
Derivative fixed interest rate	4.67%
Unsecured term loans | December 2015 Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread rate	2.60%
Other indebtedness
Debt Instrument [Line Items]
Face amount	$ 109,285,000	109,285,000
Debt issuance cost, net	(1,509,000)	(1,561,000)
Future accretion, net	(19,969,000)	(10,123,000)
Total mortgages and corporate indebtedness	$ 87,807,000	$ 97,601,000

Indebtedness - Borrowing and Pa

Indebtedness - Borrowing and Paydowns on Revolver (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt [Roll Forward]
Paydowns	$ (293,867)	$ (444,639)	$ (588,182)
Ending Balance	3,271,560
Revolving credit facility
Debt [Roll Forward]
Beginning Balance	207,000
Ending Balance	647,000	207,000
Revolving credit facility | Facility
Debt [Roll Forward]
Beginning Balance	207,000	290,000
Borrowings	471,000	267,000
Paydowns	(31,000)	(350,000)
Ending Balance	$ 647,000	$ 207,000	$ 290,000

Indebtedness - Covenants (Narra

Indebtedness - Covenants (Narrative) (Details)

12 Months Ended

Dec. 31, 2020USD ($)loanpropertypoolquarter

May 26, 2020USD ($)

May 22, 2020USD ($)

Apr. 20, 2020USD ($)

Feb. 21, 2020USD ($)

Dec. 31, 2019USD ($)

Dec. 18, 2019USD ($)

Nov. 05, 2019USD ($)

Jul. 01, 2019USD ($)

Nov. 19, 2018USD ($)

May 29, 2018USD ($)

Apr. 11, 2018USD ($)

Mortgage Loan Secured Port Charlotte Town Center

Debt Instrument [Line Items]

Default amount

$ 40,900,000

Lincolnwood Town Center

Debt Instrument [Line Items]

Default amount

$ 47,300,000

Mortgage Loan Secured By Muncie Mall

Debt Instrument [Line Items]

Default amount

$ 33,100,000

Mortgage Loan Secured by Charlottesville Fashion Square

Debt Instrument [Line Items]

Default amount

$ 45,100,000

Anderson Mall

Debt Instrument [Line Items]

Default amount

$ 17,200,000

Oak Court Mall & Offices

Debt Instrument [Line Items]

Default amount

$ 36,100,000

Mortgage Loan Secured by West Ridge

Debt Instrument [Line Items]

Default amount

$ 49,500,000

$ 49,500,000

Mortgage Loan Secured by Rushmore Mall

Debt Instrument [Line Items]

Default amount

$ 94,000,000

Mortgage Loan Secured by Towne West Square

Debt Instrument [Line Items]

Default amount

$ 45,200,000

$ 45,200,000

Mortgages

Debt Instrument [Line Items]

Mortgage notes payable

$ 1,101,653,000

$ 1,115,608,000

Secured Debt

Debt Instrument [Line Items]

Number of loans | loan

20

Number full-recourse loans | loan

2

Collateral properties | property

24

Separate pool of cross-defaulted and cross-collateralized mortgages | pool

1

Properties encumbered | property

4

Consecutive quarters for which cash levels should attain the benchmark | quarter

2

Indebtedness - Gain on Extingui

Indebtedness - Gain on Extinguishment of Debt, Net (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt, net	$ 0	$ 63,660	$ 51,395
West Ridge and Towne West Square
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt, net		62,500
Debt forgiveness		$ 94,700
Rushmore Mall
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt, net			51,400
Debt forgiveness			$ 94,000

Indebtedness - Principal Repaym

Indebtedness - Principal Repayments on Indebtedness (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 13, 2020
Debt Instrument [Line Items]
2021	$ 308,729
2022	1,180,870
2023	406,414
2024	985,474
2025	3,417
Thereafter	386,656
Total principal maturities	3,271,560
Note discount	(6,338)
Fair value adjustments, net	1,685
Debt issuance cost, net	(25,463)			$ (13,000)
Future accretion of other indebtedness, net	(19,969)
Interest paid	143,615	$ 149,775	$ 141,641
Mortgages and Unsecured Debt
Debt Instrument [Line Items]
Total mortgages and corporate indebtedness	$ 3,221,475

Indebtedness - Fair Value of De

Indebtedness - Fair Value of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fixed Rate Mortgages
Debt Instrument [Line Items]
Book value of fixed- rate	$ 1,039,375	$ 1,052,242
Fair value of fixed-rate	$ 1,057,727	$ 1,062,205
Fixed Rate Mortgages | Weighted Average
Debt Instrument [Line Items]
Weighted average discount rates assumed in calculation of fair value for fixed-rate	3.79%	4.24%
Fixed Rate Corporate Debt
Debt Instrument [Line Items]
Book value of fixed- rate	$ 1,420,185	$ 1,660,062
Fair value of fixed-rate	$ 1,203,079	$ 1,673,105
Fixed Rate Corporate Debt | Weighted Average
Debt Instrument [Line Items]
Weighted average discount rates assumed in calculation of fair value for fixed-rate	10.22%	6.03%

Derivative Financial Instrume_3

Derivative Financial Instruments - (Narrative) (Details)	Mar. 29, 2019USD ($)derivative	Dec. 31, 2020USD ($)derivative	Dec. 31, 2019USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge to be reclassified within 12 months		$ 9,000,000
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives entered into | derivative	1
Term of derivative	2 years
Notional amount	$ 52,000,000	$ 640,300,000
Number of derivatives held | derivative		11
Interest rate products | Deferred costs and other assets | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate derivative assets, at fair value		$ 0	$ 0
Interest rate products | Accounts Payable and Accrued Liabilities | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of interest rate derivatives		$ 14,380,000	$ 6,592,000

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Interest rate products | Designated as Hedging Instrument | Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 14,380	$ 6,592

Derivative Financial Instrume_5

Derivative Financial Instruments - Effect of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total interest expense presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded	$ (156,752)	$ (153,382)	$ (141,987)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total interest expense presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded	(156,752)	(153,382)	(141,987)
Interest rate products | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in OCL on Derivative	(17,832)	(13,363)	1,054
Interest rate products | Interest expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss or (Gain) Reclassified from AOCL into Income	$ 10,015	$ (739)	$ (2,338)

Derivative Financial Instrume_6

Derivative Financial Instruments - Liabilities Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative instruments, net	$ (14,380)	$ (6,592)
Quoted Prices in Active Markets for Identical Liabilities (Level 1)
Derivative [Line Items]
Derivative instruments, net	0	0
Significant Other Observable Inputs (Level 2)
Derivative [Line Items]
Derivative instruments, net	(14,380)	(6,592)
Significant Unobservable Inputs (Level 3)
Derivative [Line Items]
Derivative instruments, net	$ 0	$ 0

Equity - (Narrative) (Details)

Equity - (Narrative) (Details)

Dec. 17, 2020shares

Feb. 25, 2020$ / shares

Aug. 02, 2019USD ($)shares

Feb. 20, 2019$ / shares

Feb. 20, 2018$ / shares

Jan. 15, 2015$ / sharesshares

Feb. 28, 2019USD ($)shares

Feb. 28, 2018USD ($)shares

Dec. 31, 2020USD ($)$ / sharesshares

Dec. 31, 2019USD ($)$ / sharesshares

Dec. 31, 2018USD ($)$ / sharesshares

Dec. 16, 2020shares

May 28, 2014shares

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Common stock share split ratio

0.1111

Common stock, outstanding (in shares)

21,000,000

20,999,596

20,764,920

187,400,000

Capital shares reserved for future issuance (in shares)

3,828,590

Number of authorized shares (in shares)

810,000

Vesting period

5 years

Grants in period (in shares)

0

0

0

Common stock dividends declared (in dollars per share) | $ / shares

$ 1.125

$ 9

General and Administrative Expense

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Allocated share based compensation expense | $

$ 7,300,000

$ 7,800,000

$ 8,300,000

Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award requisite service period

3 years

PSUs forfeited (in shares)

21,354

Restricted stock awards (in shares)

63,581

289,415

156,303

90,273

Restricted stock awards, value | $

$ 3,300,000

Unvested RSUs not yet recognized | $

$ 5,600,000

Unvested RSUs not yet recognized weighted average period

1 year 8 months 12 days

Units granted (in dollars per share) | $ / shares

$ 14.36

$ 42.21

$ 56.52

Fair value of awards vested in period | $

$ 4,711,000

$ 8,254,000

$ 3,320,000

Restricted Stock Units (RSUs) | Chief Executive Officer

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Contingent right (in shares)

1

Value of shares granted | $

$ 1,800,000

Shares issued in period (in shares)

55,556

Restricted stock awards (in shares)

55,556

65,223

152,610

Restricted stock awards, value | $

$ 1,800,000

$ 3,600,000

$ 3,300,000

PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award requisite service period

3 years

PSUs | Chief Executive Officer

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Value of shares granted | $

$ 1,200,000

Shares issued in period (in shares)

55,556

Share-based Payment Arrangement, Option

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.30%

Vesting period

3 years

Exercises in period (in shares)

0

Options vested (in shares)

0

Aggregate intrinsic value | $

$ 0

1,000

0

Options, vested value | $

$ 32,000

$ 154,000

Share-based Payment Arrangement, Tranche One | Restricted Stock Units (RSUs) | Chief Executive Officer

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

Share-based Payment Arrangement, Tranche Two | Restricted Stock Units (RSUs) | Chief Executive Officer

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

Share-based Payment Arrangement, Tranche Three | Restricted Stock Units (RSUs) | Chief Executive Officer

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

Washington Prime Group, L.P. 2014 Stock Incentive Plan

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of authorized shares (in shares)

1,111,112

Number of shares annually available for grant per participant (in shares)

55,556

2020 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Contingent right (in shares)

1

Vesting period

3 years

Units granted (in dollars per share) | $ / shares

$ 21.69

2020 Annual Long-Term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Units granted (in dollars per share) | $ / shares

$ 15.66

2020 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche One | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2020 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Two | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2020 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Three | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2019 Annual Long-Term Incentive Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award requisite service period

3 years

2019 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Units granted (in dollars per share) | $ / shares

$ 51.93

2019 Annual Long-Term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Units granted (in dollars per share) | $ / shares

$ 44.82

2019 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche One | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2019 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Two | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2019 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Three | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2018 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Units granted (in dollars per share) | $ / shares

$ 54.90

2018 Annual Long-Term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Units granted (in dollars per share) | $ / shares

$ 43.92

2018 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche One | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2018 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Two | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2018 Annual Long-Term Incentive Awards | Share-based Payment Arrangement, Tranche Three | Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Vesting rights

33.33%

2017 Annual Long-term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Value of shares granted | $

$ 0

PSUs forfeited (in shares)

29,204

Common Stock

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Shares issued (in shares)

2,631

Maximum | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Range of awards earned based on goals

150.00%

Maximum | 2019 Annual Long-Term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Range of awards earned based on goals

200.00%

Minimum | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Range of awards earned based on goals

0.00%

Minimum | 2019 Annual Long-Term Incentive Awards | PSUs

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Range of awards earned based on goals

0.00%

Preferred Series H

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Preferred shares, shares issued (in shares)

4,000,000

4,000,000

4,000,000

Preferred stock dividend rate

7.50%

Redemption price (in dollars per share) | $ / shares

$ 25

Preferred Series I

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Preferred shares, shares issued (in shares)

3,800,000

3,800,000

3,800,000

Preferred stock dividend rate

6.875%

Redemption price (in dollars per share) | $ / shares

$ 25

Equity - Summary of Annual Long

Equity - Summary of Annual Long-term Incentive Awards (Details) - $ / shares	Feb. 25, 2020	Feb. 20, 2019	Feb. 20, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)				289,415
Grant date fair value (in dollars per share)				$ 14.36	$ 42.21	$ 56.52
Restricted Stock Units (RSUs) | 2020 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	152,610
Grant date fair value (in dollars per share)	$ 21.69
Restricted Stock Units (RSUs) | 2019 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)		63,581
Grant date fair value (in dollars per share)		$ 51.93
Restricted Stock Units (RSUs) | 2018 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			65,223
Grant date fair value (in dollars per share)			$ 54.90
PSUs | 2020 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	152,610
Grant date fair value (in dollars per share)	$ 15.66
PSUs | 2019 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)		63,581
Grant date fair value (in dollars per share)		$ 44.82
PSUs | 2018 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			65,223
Grant date fair value (in dollars per share)			$ 43.92

Equity - Assumptions Used to Va

Equity - Assumptions Used to Value Grants (Details) - PSUs	Aug. 02, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate	1.66%
Volatility	37.27%
2020 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate		1.16%
Volatility		41.63%
2019 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate			2.45%
Volatility			26.53%
2018 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate				2.39%
Volatility				24.70%

Equity - Performance Stock Unit

Equity - Performance Stock Unit Activity (Details) - PSUs	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, beginning (in shares) | shares	195,263
Units granted (in shares) | shares	152,610
Units forfeited (in shares) | shares	(29,204)
Outstanding, ending (in shares) | shares	318,669
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning, weighted average grant date fair value (in dollars per share) | $ / shares	$ 41.40
Units granted (in dollars per share) | $ / shares	15.66
Units forfeited (in dollars per share) | $ / shares	69.48
Outstanding, ending, weighted average grant date fair value (in dollars per share) | $ / shares	$ 26.50

Equity - Restricted Stock Unit

Equity - Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, beginning (in shares)	209,146
Units granted (in shares)	289,415
Units vested (in shares)	(85,211)
Units forfeited (in shares)	(21,354)
Outstanding, ending (in shares)	391,996	209,146
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning, weighted average grant date fair value (in dollars per share)	$ 47.86
Units granted (in dollars per share)	14.36	$ 42.21	$ 56.52
Units vested (in dollars per share)	55.28
Units forfeited (in dollars per share)	9.85
Outstanding, ending, weighted average grant date fair value (in dollars per share)	$ 23.59	$ 47.86

Equity - Stock Option Activity

Equity - Stock Option Activity (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares) | shares	66,941
Options forfeited/expired (in shares) | shares	(3,498)
Outstanding at end of year (in shares) | shares	63,443
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding at beginning of year (in dollars per share) | $ / shares	$ 18.18
Options forfeited/expired (in dollars per share) | $ / shares	44.28
Outstanding at end of year (in dollars per share) | $ / shares	$ 16.74

Equity - Summary of Options Out

Equity - Summary of Options Outstanding (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of Options Outstanding (in shares) | shares	63,443
Weighted Average Remaining Contractual Life	3 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 118.61
Number Exercisable (in shares) | shares	63,443
Weighted Average Remaining Contractual Life	3 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 118.61
$107.73
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 107.73
Number of Options Outstanding (in shares) | shares	3,393
Weighted Average Remaining Contractual Life	3 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 107.73
Number Exercisable (in shares) | shares	3,393
Weighted Average Remaining Contractual Life	3 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 107.73
$114.03
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 114.03
Number of Options Outstanding (in shares) | shares	5,388
Weighted Average Remaining Contractual Life	1 year 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 114.03
Number Exercisable (in shares) | shares	5,388
Weighted Average Remaining Contractual Life	1 year 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 114.03
$149.04
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 149.04
Number of Options Outstanding (in shares) | shares	10,249
Weighted Average Remaining Contractual Life	2 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 149.04
Number Exercisable (in shares) | shares	10,249
Weighted Average Remaining Contractual Life	2 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 149.04
$117.90
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 117.90
Number of Options Outstanding (in shares) | shares	6,852
Weighted Average Remaining Contractual Life	3 years 3 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 117.90
Number Exercisable (in shares) | shares	6,852
Weighted Average Remaining Contractual Life	3 years 3 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 117.90
$128.52
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 128.52
Number of Options Outstanding (in shares) | shares	21,715
Weighted Average Remaining Contractual Life	4 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 128.52
Number Exercisable (in shares) | shares	21,715
Weighted Average Remaining Contractual Life	4 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 128.52
$89.55
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 89.55
Number of Options Outstanding (in shares) | shares	15,846
Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 89.55
Number Exercisable (in shares) | shares	15,846
Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Weighted Average Exercise Price (in dollars per share)	$ 89.55

Commitments and Contingencies -

Commitments and Contingencies - Concentration Risk (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020
Customer Concentration Risk | Sales Revenue, Net
Concentration Risk [Line Items]
Concentration risk	5.00%

Commitments and Contingencies_2

Commitments and Contingencies - Lease Commitments (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)leasefinance_lease	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Lessee, Lease, Description [Line Items]
Number of ground leases | lease	4
Ground rent | $	$ 778	$ 837	$ 789
Number of material office leases | lease	2
Number of material garage leases | lease	1
Weighted average remaining lease term	20 years 6 months
Weighted average discount rate	8.80%
Number of finance leases held | finance_lease	0
General and Administrative Expense
Lessee, Lease, Description [Line Items]
Ground rent | $	$ 2,578	2,609	2,668
Ground Leases
Lessee, Lease, Description [Line Items]
Ground rent | $	$ 20	$ 20	$ 50

Commitments and Contingencies_3

Commitments and Contingencies - Lessee, Operating Lease, Liability, Maturity (Details) $ in Thousands	Dec. 31, 2020USD ($)
Commitments and Contingencies Disclosure [Abstract]
2021	$ 2,069
2022	2,099
2023	1,427
2024	999
2025	1,008
Thereafter	19,370
Total lease payments	26,972
Less: Discount	15,728
Present value of lease liabilities	$ 11,244

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Employee Compensation
Related Party Transaction [Line Items]
Related party transaction amount	$ 200	$ 200
Commissions for Commercial Leasing Transactions
Related Party Transaction [Line Items]
Related party transaction amount	200
Commissions Paid to Chairman of the Board's Son
Related Party Transaction [Line Items]
Related party transaction amount	0
Amount to be received	$ 15

(Loss) Earnings Per Common Sh_3

(Loss) Earnings Per Common Share/Unit - Basic and Diluted (Loss) Earnings Per Share Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
(Loss) Earnings Per Common Share, Basic:
Net (loss) income attributable to common shareholders - basic	$ (111,406)	$ (43,737)	$ (82,050)	$ 3,375	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ (233,818)	$ (9,758)	$ 79,572
Weighted average shares outstanding - basic ( in shares)									21,173,364	20,938,381	20,855,149
(Loss) earnings per common share, basic (in dollars per share)									$ (11.04)	$ (0.47)	$ 3.81
(Loss) Earnings Per Common Share, Diluted:
Net (loss) income attributable to common shareholders - basic	$ (111,406)	$ (43,737)	$ (82,050)	$ 3,375	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ (233,818)	$ (9,758)	$ 79,572
Net (loss) income attributable to common unitholders									(42,341)	(1,799)	14,735
Net (loss) income attributable to common shareholders - diluted									$ (276,159)	$ (11,557)	$ 94,307
Weighted average shares outstanding - basic ( in shares)									21,173,364	20,938,381	20,855,149
Weighted average operating partnership units outstanding (in shares)									3,834,258	3,858,890	3,855,975
Weighted average additional dilutive securities outstanding (in shares)									0	0	67,075
Weighted average common shares outstanding - diluted (in shares)									25,007,622	24,797,271	24,778,199
Earnings per common share, diluted (in dollars per share)									$ (11.04)	$ (0.47)	$ 3.81

(Loss) Earnings Per Common Sh_4

(Loss) Earnings Per Common Share/Unit - (Narrative) (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Contingently-Issuable Outstanding Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	63,443	66,941
Contingently-Issuable Outstanding Stock Options | Washington Prime Group, L.P.
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	63,443	66,941
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	66,857	63,453
Restricted Stock Units (RSUs) | Washington Prime Group, L.P.
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	66,857	63,453
Performance Based Components
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	318,669	195,937
Performance Based Components | Washington Prime Group, L.P.
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	318,669	195,937

(Loss) Earnings Per Common Sh_5

(Loss) Earnings Per Common Share/Unit - Earnings Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings (Loss) Per Common Unit, Basic & Diluted:
Weighted average common shares outstanding - diluted (in shares)									25,007,622	24,797,271	24,778,199
(Loss) earnings per common unit, basic and diluted (in dollars per share)	$ (5.24)	$ (2.06)	$ (3.88)	$ 0.16	$ 0.81	$ (0.21)	$ (0.82)	$ (0.25)	$ (11.04)	$ (0.47)	$ 3.81
Washington Prime Group, L.P.
Earnings (Loss) Per Common Unit, Basic & Diluted:
Net (loss) income attributable to common unitholders - basic and diluted									$ (276,159)	$ (11,557)	$ 94,307
Weighted average common units outstanding - basic (in shares)									25,007,622	24,797,271	24,711,124
Weighted average additional dilutive securities outstanding (in shares)									0	0	67,075
Weighted average common shares outstanding - diluted (in shares)									25,007,622	24,797,271	24,778,199
(Loss) earnings per common unit, basic and diluted (in dollars per share)	$ (5.24)	$ (2.06)	$ (3.88)	$ 0.16	$ 0.81	$ (0.21)	$ (0.82)	$ (0.25)	$ (11.04)	$ (0.47)	$ 3.81

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Millions	Mar. 15, 2021	Feb. 15, 2021	Dec. 31, 2020	Feb. 09, 2021	Feb. 02, 2021	May 22, 2020	Apr. 20, 2020	Dec. 31, 2019
Washington Prime Inc | Washington Prime Group, L.P.
Subsequent Event [Line Items]
Noncontrolling interest, ownership percentage by parent			84.80%					84.50%
Common Stock
Subsequent Event [Line Items]
Shares issued (in shares)			2,631
Anderson Mall
Subsequent Event [Line Items]
Default amount							$ 17.2
Lincolnwood Town Center
Subsequent Event [Line Items]
Default amount						$ 47.3
Subsequent Event | Washington Prime Inc | Washington Prime Group, L.P.
Subsequent Event [Line Items]
Noncontrolling interest, ownership percentage by parent	97.90%
Subsequent Event | Common Stock
Subsequent Event [Line Items]
Shares issued (in shares)	3,306,692
Subsequent Event | Anderson Mall
Subsequent Event [Line Items]
Default amount					$ 17.2
Subsequent Event | Lincolnwood Town Center
Subsequent Event [Line Items]
Default amount				$ 47.3
Subsequent Event | Senior Notes due 2024 | Notes Payable
Subsequent Event [Line Items]
Debt instrument, interest payment		$ 23.2
Debt instrument, grace period		30 days

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total revenue	$ 149,372	$ 123,682	$ 98,764	$ 152,600	$ 170,023	$ 161,204	$ 161,434	$ 168,823	$ 524,418	$ 661,484	$ 717,479
Net income (loss)	(127,910)	(48,061)	(93,413)	7,560	23,868	(1,665)	(16,880)	(2,563)	(261,824)	2,760	108,655
Net income (loss) attributable to the Company	(107,898)	(40,229)	(78,542)	6,883	20,608	(913)	(13,754)	(1,667)	(219,786)	4,274	93,604
Net income (loss) attributable to common shareholders	$ (111,406)	$ (43,737)	$ (82,050)	$ 3,375	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ (233,818)	$ (9,758)	$ 79,572
(Loss) earnings per common share/unit—basic and diluted (in dollars per share)	$ (5.24)	$ (2.06)	$ (3.88)	$ 0.16	$ 0.81	$ (0.21)	$ (0.82)	$ (0.25)	$ (11.04)	$ (0.47)	$ 3.81
Washington Prime Group, L.P.
Total revenue									$ 524,418	$ 661,484	$ 717,479
Net income (loss)									$ (261,824)	$ 2,760	$ 108,655
Net income (loss) attributable to common shareholders	$ (131,541)	$ (51,629)	$ (96,981)	$ 3,992	$ 20,255	$ (5,233)	$ (20,448)	$ (6,131)
(Loss) earnings per common share/unit—basic and diluted (in dollars per share)	$ (5.24)	$ (2.06)	$ (3.88)	$ 0.16	$ 0.81	$ (0.21)	$ (0.82)	$ (0.25)	$ (11.04)	$ (0.47)	$ 3.81
Net (loss) income attributable to unitholders	$ (127,910)	$ (48,061)	$ (93,413)	$ 7,560	$ 23,868	$ (1,665)	$ (16,880)	$ (2,563)	$ (261,887)	$ 2,715	$ 108,579

Schedule III - Real Estate an_2

Schedule III - Real Estate and Accumulated Depreciation - Real Estate (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 1,104,375
Initial Cost Land	770,674
Initial Cost Buildings and Improvements	3,532,619
Cost Capitalized Subsequent to Construction or Acquisition Land	30,382
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,434,120
Gross Amounts At Which Carried at Close of Period Land	801,056
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	4,966,739
Total cost per Schedule III	5,767,795	$ 5,798,217	$ 5,817,153	$ 5,715,996
Accumulated Depreciation	2,453,805	$ 2,320,417	$ 2,212,476	$ 2,076,948
Malls | Anderson Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	17,156
Initial Cost Land	1,712
Initial Cost Buildings and Improvements	15,227
Cost Capitalized Subsequent to Construction or Acquisition Land	(748)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	13,791
Gross Amounts At Which Carried at Close of Period Land	964
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	29,018
Total cost per Schedule III	29,982
Accumulated Depreciation	26,050
Malls | Ashland Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,045
Initial Cost Land	13,462
Initial Cost Buildings and Improvements	68,367
Cost Capitalized Subsequent to Construction or Acquisition Land	(396)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	7,127
Gross Amounts At Which Carried at Close of Period Land	13,066
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	75,494
Total cost per Schedule III	88,560
Accumulated Depreciation	18,035
Malls | Bowie Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	2,479
Initial Cost Buildings and Improvements	60,322
Cost Capitalized Subsequent to Construction or Acquisition Land	236
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	10,566
Gross Amounts At Which Carried at Close of Period Land	2,715
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	70,888
Total cost per Schedule III	73,603
Accumulated Depreciation	43,558
Malls | Boynton Beach Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	22,240
Initial Cost Buildings and Improvements	78,804
Cost Capitalized Subsequent to Construction or Acquisition Land	6,977
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	34,555
Gross Amounts At Which Carried at Close of Period Land	29,217
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	113,359
Total cost per Schedule III	142,576
Accumulated Depreciation	81,003
Malls | Brunswick Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	68,259
Initial Cost Land	8,436
Initial Cost Buildings and Improvements	55,838
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	35,539
Gross Amounts At Which Carried at Close of Period Land	8,436
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	91,377
Total cost per Schedule III	99,813
Accumulated Depreciation	62,862
Malls | Charlottesville Fashion Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	45,068
Initial Cost Land	0
Initial Cost Buildings and Improvements	54,738
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	9,119
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	63,857
Total cost per Schedule III	63,857
Accumulated Depreciation	47,289
Malls | Chautauqua Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	3,116
Initial Cost Buildings and Improvements	9,641
Cost Capitalized Subsequent to Construction or Acquisition Land	(2,171)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	13,140
Gross Amounts At Which Carried at Close of Period Land	945
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	22,781
Total cost per Schedule III	23,726
Accumulated Depreciation	18,353
Malls | Chesapeake Square Theater
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	628
Initial Cost Buildings and Improvements	9,536
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(738)
Gross Amounts At Which Carried at Close of Period Land	628
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	8,798
Total cost per Schedule III	9,426
Accumulated Depreciation	2,770
Malls | Clay Terrace
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	39,030
Initial Cost Buildings and Improvements	115,207
Cost Capitalized Subsequent to Construction or Acquisition Land	43
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	15,526
Gross Amounts At Which Carried at Close of Period Land	39,073
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	130,733
Total cost per Schedule III	169,806
Accumulated Depreciation	31,112
Malls | Cottonwood Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	93,281
Initial Cost Land	10,122
Initial Cost Buildings and Improvements	69,958
Cost Capitalized Subsequent to Construction or Acquisition Land	5,042
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	26,132
Gross Amounts At Which Carried at Close of Period Land	15,164
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	96,090
Total cost per Schedule III	111,254
Accumulated Depreciation	55,375
Malls | Dayton Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	77,711
Initial Cost Land	10,899
Initial Cost Buildings and Improvements	160,723
Cost Capitalized Subsequent to Construction or Acquisition Land	(4,632)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(86,215)
Gross Amounts At Which Carried at Close of Period Land	6,267
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	74,508
Total cost per Schedule III	80,775
Accumulated Depreciation	32,759
Malls | Edison Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	11,529
Initial Cost Buildings and Improvements	107,350
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	36,168
Gross Amounts At Which Carried at Close of Period Land	11,529
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	143,518
Total cost per Schedule III	155,047
Accumulated Depreciation	89,104
Malls | Grand Central Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	38,084
Initial Cost Land	18,956
Initial Cost Buildings and Improvements	89,736
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	30,233
Gross Amounts At Which Carried at Close of Period Land	18,956
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	119,969
Total cost per Schedule III	138,925
Accumulated Depreciation	27,876
Malls | Great Lakes Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	12,302
Initial Cost Buildings and Improvements	100,362
Cost Capitalized Subsequent to Construction or Acquisition Land	(121)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	55,718
Gross Amounts At Which Carried at Close of Period Land	12,181
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	156,080
Total cost per Schedule III	168,261
Accumulated Depreciation	89,487
Malls | Indian Mound Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	7,109
Initial Cost Buildings and Improvements	19,205
Cost Capitalized Subsequent to Construction or Acquisition Land	(5,294)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(8,494)
Gross Amounts At Which Carried at Close of Period Land	1,815
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	10,711
Total cost per Schedule III	12,526
Accumulated Depreciation	6,807
Malls | Irving Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	6,737
Initial Cost Buildings and Improvements	17,479
Cost Capitalized Subsequent to Construction or Acquisition Land	2,533
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	45,433
Gross Amounts At Which Carried at Close of Period Land	9,270
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	62,912
Total cost per Schedule III	72,182
Accumulated Depreciation	46,642
Malls | Jefferson Valley Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	4,868
Initial Cost Buildings and Improvements	30,304
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	69,414
Gross Amounts At Which Carried at Close of Period Land	4,868
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	99,718
Total cost per Schedule III	104,586
Accumulated Depreciation	54,352
Malls | Lima Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	7,659
Initial Cost Buildings and Improvements	35,338
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	19,968
Gross Amounts At Which Carried at Close of Period Land	7,659
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	55,306
Total cost per Schedule III	62,965
Accumulated Depreciation	36,082
Malls | Lincolnwood Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	47,252
Initial Cost Land	7,834
Initial Cost Buildings and Improvements	63,480
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	21,409
Gross Amounts At Which Carried at Close of Period Land	7,834
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	84,889
Total cost per Schedule III	92,723
Accumulated Depreciation	61,612
Malls | Lindale Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	14,106
Initial Cost Buildings and Improvements	58,286
Cost Capitalized Subsequent to Construction or Acquisition Land	(1,480)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	14,989
Gross Amounts At Which Carried at Close of Period Land	12,626
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	73,275
Total cost per Schedule III	85,901
Accumulated Depreciation	30,168
Malls | Longview Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	259
Initial Cost Buildings and Improvements	3,567
Cost Capitalized Subsequent to Construction or Acquisition Land	3,319
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	29,271
Gross Amounts At Which Carried at Close of Period Land	3,578
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	32,838
Total cost per Schedule III	36,416
Accumulated Depreciation	10,635
Malls | Mall at Fairfield Commons, The
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	18,194
Initial Cost Buildings and Improvements	175,426
Cost Capitalized Subsequent to Construction or Acquisition Land	(687)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	38,951
Gross Amounts At Which Carried at Close of Period Land	17,507
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	214,377
Total cost per Schedule III	231,884
Accumulated Depreciation	44,522
Malls | Maplewood Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	17,119
Initial Cost Buildings and Improvements	80,758
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	27,387
Gross Amounts At Which Carried at Close of Period Land	17,119
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	108,145
Total cost per Schedule III	125,264
Accumulated Depreciation	62,305
Malls | Markland Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	7,568
Cost Capitalized Subsequent to Construction or Acquisition Land	2,803
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	32,001
Gross Amounts At Which Carried at Close of Period Land	2,803
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	39,569
Total cost per Schedule III	42,372
Accumulated Depreciation	14,639
Malls | Melbourne Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	15,762
Initial Cost Buildings and Improvements	55,891
Cost Capitalized Subsequent to Construction or Acquisition Land	2,831
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	38,535
Gross Amounts At Which Carried at Close of Period Land	18,593
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	94,426
Total cost per Schedule III	113,019
Accumulated Depreciation	59,787
Malls | Mesa Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	12,784
Initial Cost Buildings and Improvements	80,639
Cost Capitalized Subsequent to Construction or Acquisition Land	(1,717)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	13,543
Gross Amounts At Which Carried at Close of Period Land	11,067
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	94,182
Total cost per Schedule III	105,249
Accumulated Depreciation	36,322
Malls | Morgantown Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	10,219
Initial Cost Buildings and Improvements	77,599
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	12,370
Gross Amounts At Which Carried at Close of Period Land	10,219
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	89,969
Total cost per Schedule III	100,188
Accumulated Depreciation	19,734
Malls | Muncie Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	33,071
Initial Cost Land	172
Initial Cost Buildings and Improvements	5,776
Cost Capitalized Subsequent to Construction or Acquisition Land	48
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	29,184
Gross Amounts At Which Carried at Close of Period Land	220
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	34,960
Total cost per Schedule III	35,180
Accumulated Depreciation	25,916
Malls | New Towne Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	3,172
Initial Cost Buildings and Improvements	33,112
Cost Capitalized Subsequent to Construction or Acquisition Land	(2,063)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(9,818)
Gross Amounts At Which Carried at Close of Period Land	1,109
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	23,294
Total cost per Schedule III	24,403
Accumulated Depreciation	12,107
Malls | Northtown Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	18,603
Initial Cost Buildings and Improvements	57,341
Cost Capitalized Subsequent to Construction or Acquisition Land	(676)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	8,572
Gross Amounts At Which Carried at Close of Period Land	17,927
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	65,913
Total cost per Schedule III	83,840
Accumulated Depreciation	18,160
Malls | Northwoods Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,185
Initial Cost Buildings and Improvements	12,779
Cost Capitalized Subsequent to Construction or Acquisition Land	3,021
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	55,184
Gross Amounts At Which Carried at Close of Period Land	4,206
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	67,963
Total cost per Schedule III	72,169
Accumulated Depreciation	43,808
Malls | Oak Court Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	36,069
Initial Cost Land	15,673
Initial Cost Buildings and Improvements	57,304
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	15,025
Gross Amounts At Which Carried at Close of Period Land	15,673
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	72,329
Total cost per Schedule III	88,002
Accumulated Depreciation	57,559
Malls | Orange Park Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	12,998
Initial Cost Buildings and Improvements	65,121
Cost Capitalized Subsequent to Construction or Acquisition Land	(267)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	49,679
Gross Amounts At Which Carried at Close of Period Land	12,731
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	114,800
Total cost per Schedule III	127,531
Accumulated Depreciation	77,975
Malls | The Outlet Collection - Seattle
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	38,751
Initial Cost Buildings and Improvements	107,094
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	24,507
Gross Amounts At Which Carried at Close of Period Land	38,751
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	131,601
Total cost per Schedule III	170,352
Accumulated Depreciation	30,629
Malls | Paddock Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	11,198
Initial Cost Buildings and Improvements	39,727
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	24,775
Gross Amounts At Which Carried at Close of Period Land	11,198
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	64,502
Total cost per Schedule III	75,700
Accumulated Depreciation	39,918
Malls | Port Charlotte Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	40,868
Initial Cost Land	5,471
Initial Cost Buildings and Improvements	58,570
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	19,580
Gross Amounts At Which Carried at Close of Period Land	5,471
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	78,150
Total cost per Schedule III	83,621
Accumulated Depreciation	55,546
Malls | Rolling Oaks Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,929
Initial Cost Buildings and Improvements	38,609
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	16,720
Gross Amounts At Which Carried at Close of Period Land	1,929
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	55,329
Total cost per Schedule III	57,258
Accumulated Depreciation	41,283
Malls | Southern Hills Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	15,025
Initial Cost Buildings and Improvements	75,984
Cost Capitalized Subsequent to Construction or Acquisition Land	3,585
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	7,792
Gross Amounts At Which Carried at Close of Period Land	18,610
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	83,776
Total cost per Schedule III	102,386
Accumulated Depreciation	35,866
Malls | Southern Park Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	16,982
Initial Cost Buildings and Improvements	77,767
Cost Capitalized Subsequent to Construction or Acquisition Land	(236)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	45,011
Gross Amounts At Which Carried at Close of Period Land	16,746
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	122,778
Total cost per Schedule III	139,524
Accumulated Depreciation	76,394
Malls | Southgate Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,395
Initial Cost Land	17,040
Initial Cost Buildings and Improvements	35,896
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,755
Gross Amounts At Which Carried at Close of Period Land	17,040
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	41,651
Total cost per Schedule III	58,691
Accumulated Depreciation	5,073
Malls | Sunland Park Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	2,896
Initial Cost Buildings and Improvements	28,900
Cost Capitalized Subsequent to Construction or Acquisition Land	(524)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	7,017
Gross Amounts At Which Carried at Close of Period Land	2,372
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	35,917
Total cost per Schedule III	38,289
Accumulated Depreciation	30,397
Malls | Town Center at Aurora
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	50,750
Initial Cost Land	9,959
Initial Cost Buildings and Improvements	56,832
Cost Capitalized Subsequent to Construction or Acquisition Land	9,975
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	73,040
Gross Amounts At Which Carried at Close of Period Land	19,934
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	129,872
Total cost per Schedule III	149,806
Accumulated Depreciation	90,463
Malls | Waterford Lakes Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	175,876
Initial Cost Land	8,679
Initial Cost Buildings and Improvements	72,836
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	31,412
Gross Amounts At Which Carried at Close of Period Land	8,679
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	104,248
Total cost per Schedule III	112,927
Accumulated Depreciation	65,700
Malls | Weberstown Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	65,000
Initial Cost Land	9,909
Initial Cost Buildings and Improvements	92,589
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,485
Gross Amounts At Which Carried at Close of Period Land	9,909
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	98,074
Total cost per Schedule III	107,983
Accumulated Depreciation	21,114
Malls | Westminster Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	75,110
Initial Cost Land	43,464
Initial Cost Buildings and Improvements	84,709
Cost Capitalized Subsequent to Construction or Acquisition Land	(180)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	44,403
Gross Amounts At Which Carried at Close of Period Land	43,284
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	129,112
Total cost per Schedule III	172,396
Accumulated Depreciation	76,629
Malls | WestShore Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	53,904
Initial Cost Buildings and Improvements	120,191
Cost Capitalized Subsequent to Construction or Acquisition Land	3,668
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	14,763
Gross Amounts At Which Carried at Close of Period Land	57,572
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	134,954
Total cost per Schedule III	192,526
Accumulated Depreciation	25,352
Open Air Properties | Bloomingdale Court
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	8,422
Initial Cost Buildings and Improvements	26,184
Cost Capitalized Subsequent to Construction or Acquisition Land	(551)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	18,239
Gross Amounts At Which Carried at Close of Period Land	7,871
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	44,423
Total cost per Schedule III	52,294
Accumulated Depreciation	32,828
Open Air Properties | Bowie Town Center Strip
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	231
Initial Cost Buildings and Improvements	4,597
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,026
Gross Amounts At Which Carried at Close of Period Land	231
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	5,623
Total cost per Schedule III	5,854
Accumulated Depreciation	3,131
Open Air Properties | Canyon View Marketplace
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,020
Initial Cost Land	1,370
Initial Cost Buildings and Improvements	9,570
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	770
Gross Amounts At Which Carried at Close of Period Land	1,370
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	10,340
Total cost per Schedule III	11,710
Accumulated Depreciation	1,737
Open Air Properties | Chesapeake Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	4,410
Initial Cost Buildings and Improvements	11,241
Cost Capitalized Subsequent to Construction or Acquisition Land	(40)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,762
Gross Amounts At Which Carried at Close of Period Land	4,370
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	13,003
Total cost per Schedule III	17,373
Accumulated Depreciation	11,491
Open Air Properties | Concord Mills Marketplace
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	16,000
Initial Cost Land	8,036
Initial Cost Buildings and Improvements	21,167
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,104
Gross Amounts At Which Carried at Close of Period Land	8,036
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	22,271
Total cost per Schedule III	30,307
Accumulated Depreciation	7,572
Open Air Properties | Countryside Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	332
Initial Cost Buildings and Improvements	8,507
Cost Capitalized Subsequent to Construction or Acquisition Land	2,554
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	12,551
Gross Amounts At Which Carried at Close of Period Land	2,886
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	21,058
Total cost per Schedule III	23,944
Accumulated Depreciation	14,971
Open Air Properties | Dare Centre
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	5,702
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	3,012
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	8,714
Total cost per Schedule III	8,714
Accumulated Depreciation	5,074
Open Air Properties | Empire East
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	3,350
Initial Cost Buildings and Improvements	10,552
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,907
Gross Amounts At Which Carried at Close of Period Land	3,350
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	16,459
Total cost per Schedule III	19,809
Accumulated Depreciation	4,830
Open Air Properties | Fairfax Court
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	8,078
Initial Cost Buildings and Improvements	34,997
Cost Capitalized Subsequent to Construction or Acquisition Land	(647)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	3,182
Gross Amounts At Which Carried at Close of Period Land	7,431
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	38,179
Total cost per Schedule III	45,610
Accumulated Depreciation	9,700
Open Air Properties | Fairfield Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	4,745
Initial Cost Buildings and Improvements	5,044
Cost Capitalized Subsequent to Construction or Acquisition Land	3,940
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	64,993
Gross Amounts At Which Carried at Close of Period Land	8,685
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	70,037
Total cost per Schedule III	78,722
Accumulated Depreciation	8,223
Open Air Properties | Forest Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	30,250
Initial Cost Land	4,132
Initial Cost Buildings and Improvements	16,818
Cost Capitalized Subsequent to Construction or Acquisition Land	453
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	18,811
Gross Amounts At Which Carried at Close of Period Land	4,585
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	35,629
Total cost per Schedule III	40,214
Accumulated Depreciation	19,710
Open Air Properties | Gaitway Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	5,445
Initial Cost Buildings and Improvements	26,687
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	4,394
Gross Amounts At Which Carried at Close of Period Land	5,445
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	31,081
Total cost per Schedule III	36,526
Accumulated Depreciation	8,304
Open Air Properties | Greenwood Plus
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,129
Initial Cost Buildings and Improvements	1,792
Cost Capitalized Subsequent to Construction or Acquisition Land	(57)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	4,970
Gross Amounts At Which Carried at Close of Period Land	1,072
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	6,762
Total cost per Schedule III	7,834
Accumulated Depreciation	5,066
Open Air Properties | Henderson Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	4,223
Initial Cost Buildings and Improvements	15,124
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,517
Gross Amounts At Which Carried at Close of Period Land	4,223
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	16,641
Total cost per Schedule III	20,864
Accumulated Depreciation	8,399
Open Air Properties | Keystone Shoppers
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	4,232
Cost Capitalized Subsequent to Construction or Acquisition Land	2,118
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,479
Gross Amounts At Which Carried at Close of Period Land	2,118
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,711
Total cost per Schedule III	11,829
Accumulated Depreciation	4,993
Open Air Properties | Lake Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	2,487
Initial Cost Buildings and Improvements	6,420
Cost Capitalized Subsequent to Construction or Acquisition Land	(787)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,891
Gross Amounts At Which Carried at Close of Period Land	1,700
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	8,311
Total cost per Schedule III	10,011
Accumulated Depreciation	6,464
Open Air Properties | Lake View Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	4,702
Initial Cost Buildings and Improvements	17,543
Cost Capitalized Subsequent to Construction or Acquisition Land	(89)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	19,138
Gross Amounts At Which Carried at Close of Period Land	4,613
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,681
Total cost per Schedule III	41,294
Accumulated Depreciation	25,918
Open Air Properties | Lakeline Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	49,710
Initial Cost Land	5,822
Initial Cost Buildings and Improvements	30,875
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	16,011
Gross Amounts At Which Carried at Close of Period Land	5,822
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	46,886
Total cost per Schedule III	52,708
Accumulated Depreciation	27,795
Open Air Properties | Lima Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,781
Initial Cost Buildings and Improvements	5,151
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	10,125
Gross Amounts At Which Carried at Close of Period Land	1,781
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	15,276
Total cost per Schedule III	17,057
Accumulated Depreciation	11,674
Open Air Properties | Lincoln Crossing
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	674
Initial Cost Buildings and Improvements	2,192
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	9,792
Gross Amounts At Which Carried at Close of Period Land	674
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	11,984
Total cost per Schedule III	12,658
Accumulated Depreciation	5,090
Open Air Properties | MacGregor Village
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	502
Initial Cost Buildings and Improvements	8,891
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	12,035
Gross Amounts At Which Carried at Close of Period Land	502
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	20,926
Total cost per Schedule III	21,428
Accumulated Depreciation	6,220
Open Air Properties | Mall of Georgia Crossing
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	21,131
Initial Cost Land	9,506
Initial Cost Buildings and Improvements	32,892
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,118
Gross Amounts At Which Carried at Close of Period Land	9,506
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	38,010
Total cost per Schedule III	47,516
Accumulated Depreciation	22,501
Open Air Properties | Markland Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	206
Initial Cost Buildings and Improvements	738
Cost Capitalized Subsequent to Construction or Acquisition Land	(5)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	9,030
Gross Amounts At Which Carried at Close of Period Land	201
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,768
Total cost per Schedule III	9,969
Accumulated Depreciation	5,527
Open Air Properties | Martinsville Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	584
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	3,183
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	3,767
Total cost per Schedule III	3,767
Accumulated Depreciation	746
Open Air Properties | Muncie Towne Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,550
Initial Cost Land	267
Initial Cost Buildings and Improvements	10,509
Cost Capitalized Subsequent to Construction or Acquisition Land	86
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	4,459
Gross Amounts At Which Carried at Close of Period Land	353
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	14,968
Total cost per Schedule III	15,321
Accumulated Depreciation	9,419
Open Air Properties | North Ridge Shopping Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	11,229
Initial Cost Land	385
Initial Cost Buildings and Improvements	12,826
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	8,080
Gross Amounts At Which Carried at Close of Period Land	385
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	20,906
Total cost per Schedule III	21,291
Accumulated Depreciation	8,980
Open Air Properties | Northwood Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	148
Initial Cost Buildings and Improvements	1,414
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	4,038
Gross Amounts At Which Carried at Close of Period Land	148
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	5,452
Total cost per Schedule III	5,600
Accumulated Depreciation	3,682
Open Air Properties | The Plaza at Buckland Hills
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	17,355
Initial Cost Buildings and Improvements	43,900
Cost Capitalized Subsequent to Construction or Acquisition Land	(281)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	10,279
Gross Amounts At Which Carried at Close of Period Land	17,074
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	54,179
Total cost per Schedule III	71,253
Accumulated Depreciation	10,823
Open Air Properties | Richardson Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	6,285
Initial Cost Buildings and Improvements	0
Cost Capitalized Subsequent to Construction or Acquisition Land	990
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	14,763
Gross Amounts At Which Carried at Close of Period Land	7,275
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	14,763
Total cost per Schedule III	22,038
Accumulated Depreciation	7,279
Open Air Properties | Rockaway Commons
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	5,149
Initial Cost Buildings and Improvements	26,435
Cost Capitalized Subsequent to Construction or Acquisition Land	(117)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	17,204
Gross Amounts At Which Carried at Close of Period Land	5,032
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	43,639
Total cost per Schedule III	48,671
Accumulated Depreciation	23,560
Open Air Properties | Rockaway Town Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	18,698
Cost Capitalized Subsequent to Construction or Acquisition Land	2,225
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,592
Gross Amounts At Which Carried at Close of Period Land	2,225
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	24,290
Total cost per Schedule III	26,515
Accumulated Depreciation	11,792
Open Air Properties | Royal Eagle Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	2,153
Initial Cost Buildings and Improvements	24,216
Cost Capitalized Subsequent to Construction or Acquisition Land	(152)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	14,306
Gross Amounts At Which Carried at Close of Period Land	2,001
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	38,522
Total cost per Schedule III	40,523
Accumulated Depreciation	9,915
Open Air Properties | The Shops at North East Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	12,541
Initial Cost Buildings and Improvements	28,177
Cost Capitalized Subsequent to Construction or Acquisition Land	402
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	8,558
Gross Amounts At Which Carried at Close of Period Land	12,943
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,735
Total cost per Schedule III	49,678
Accumulated Depreciation	26,261
Open Air Properties | St. Charles Towne Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	8,216
Initial Cost Buildings and Improvements	18,993
Cost Capitalized Subsequent to Construction or Acquisition Land	(62)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	10,990
Gross Amounts At Which Carried at Close of Period Land	8,154
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	29,983
Total cost per Schedule III	38,137
Accumulated Depreciation	20,143
Open Air Properties | Tippecanoe Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	745
Cost Capitalized Subsequent to Construction or Acquisition Land	234
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,892
Gross Amounts At Which Carried at Close of Period Land	234
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	6,637
Total cost per Schedule III	6,871
Accumulated Depreciation	4,641
Open Air Properties | University Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	2,119
Initial Cost Buildings and Improvements	8,365
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,493
Gross Amounts At Which Carried at Close of Period Land	2,119
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	13,858
Total cost per Schedule III	15,977
Accumulated Depreciation	11,057
Open Air Properties | University Town Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	6,009
Initial Cost Buildings and Improvements	26,945
Cost Capitalized Subsequent to Construction or Acquisition Land	(579)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	2,473
Gross Amounts At Which Carried at Close of Period Land	5,430
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	29,418
Total cost per Schedule III	34,848
Accumulated Depreciation	11,488
Open Air Properties | Village Park Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	19,565
Initial Cost Buildings and Improvements	51,873
Cost Capitalized Subsequent to Construction or Acquisition Land	(1,845)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	2,557
Gross Amounts At Which Carried at Close of Period Land	17,720
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	54,430
Total cost per Schedule III	72,150
Accumulated Depreciation	18,438
Open Air Properties | Washington Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	263
Initial Cost Buildings and Improvements	1,833
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	3,329
Gross Amounts At Which Carried at Close of Period Land	263
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	5,162
Total cost per Schedule III	5,425
Accumulated Depreciation	4,588
Open Air Properties | West Town Corners
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	6,821
Initial Cost Buildings and Improvements	24,603
Cost Capitalized Subsequent to Construction or Acquisition Land	(174)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	8,607
Gross Amounts At Which Carried at Close of Period Land	6,647
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	33,210
Total cost per Schedule III	39,857
Accumulated Depreciation	9,299
Open Air Properties | Westland Park Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	5,576
Initial Cost Buildings and Improvements	8,775
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	579
Gross Amounts At Which Carried at Close of Period Land	5,576
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,354
Total cost per Schedule III	14,930
Accumulated Depreciation	3,049
Open Air Properties | White Oaks Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	26,490
Initial Cost Land	3,169
Initial Cost Buildings and Improvements	14,267
Cost Capitalized Subsequent to Construction or Acquisition Land	63
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	10,899
Gross Amounts At Which Carried at Close of Period Land	3,232
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	25,166
Total cost per Schedule III	28,398
Accumulated Depreciation	15,504
Open Air Properties | Whitehall Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	8,500
Initial Cost Buildings and Improvements	28,512
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	5,604
Gross Amounts At Which Carried at Close of Period Land	8,500
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	34,116
Total cost per Schedule III	42,616
Accumulated Depreciation	11,500
Open Air Properties | Other Developments
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	21,999
Initial Cost Buildings and Improvements	51,547
Cost Capitalized Subsequent to Construction or Acquisition Land	(186)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	17,124
Gross Amounts At Which Carried at Close of Period Land	21,813
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	68,671
Total cost per Schedule III	90,484
Accumulated Depreciation	35,294
Developments in Progress | Other Developments
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	0
Initial Cost Buildings and Improvements	0
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	15,730
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	15,730
Total cost per Schedule III	15,730
Accumulated Depreciation	$ 0

Schedule III - Real Estate an_3

Schedule III - Real Estate and Accumulated Depreciation - Changes in Real Estate Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance, beginning of year	$ 5,798,217	$ 5,817,153	$ 5,715,996
Acquisitions	0	10,899	72,647
Improvements	172,897	178,669	143,123
Disposals	(203,319)	(208,504)	(114,613)
Balance, end of year	5,767,795	5,798,217	5,817,153
Impairment of real estate	$ 135,151	$ 35,256	$ 0

Schedule III - Real Estate an_4

Schedule III - Real Estate and Accumulated Depreciation - Reconciliation of Investment Properties at Cost (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Investment properties at cost	$ 5,873,801	$ 5,902,406
Total cost per Schedule III	5,767,795	$ 5,798,217	$ 5,817,153	$ 5,715,996
Aggregate cost for federal income tax purposes of real estate assets	4,635,538
Furniture Fixtures and Equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Investment properties at cost	$ 106,006

Schedule III - Real Estate an_5

Schedule III - Real Estate and Accumulated Depreciation - Changes in Accumulated Depreciation and Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance, beginning of year	$ 2,320,417	$ 2,212,476	$ 2,076,948
Depreciation expense	193,902	226,696	205,724
Disposals	(60,514)	(118,755)	(70,196)
Balance, end of year	$ 2,453,805	$ 2,320,417	$ 2,212,476

Schedule III - Real Estate an_6

Schedule III - Real Estate and Accumulated Depreciation - Reconciliation of Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Accumulated depreciation	$ 2,539,745	$ 2,397,736
Total accumulated depreciation per Schedule III	$ 2,453,805	$ 2,320,417	$ 2,212,476	$ 2,076,948
Land Improvements
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life used for depreciation	15 years
HVAC Equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life used for depreciation	10 years
Minimum | Building and Building Improvements
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life used for depreciation	10 years
Maximum | Building and Building Improvements
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life used for depreciation	40 years
Furniture Fixtures and Equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Accumulated depreciation	$ 85,940