Washington Prime (WPGGQ) 10-K 27 Feb 20 2019 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2019	Feb. 26, 2020	Jun. 28, 2019
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
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	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 0.7
Entity Common Stock, Shares Outstanding (in shares)		186,884,276
Documents Incorporated by Reference	Portions of Washington Prime Group Inc.'s Proxy Statement in connection with its 2020 Annual Meeting of Stockholders are incorporated by reference in Part III.
Document Fiscal Year Focus	2019
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Entity Central Index Key	0001594686
Amendment Flag	false
Washington Prime Group, L.P.
Document Information [Line Items]
Entity Registrant Name	Washington Prime Group, L.P.
Entity Filer Category	Non-accelerated Filer
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001610911
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

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Investment properties at cost	$ 5,902,406	$ 5,914,705
Less: accumulated depreciation	2,397,736	2,283,764
Investment properties at cost, net	3,504,670	3,630,941
Cash and cash equivalents	41,421	42,542
Tenant receivables and accrued revenue, net	82,762	85,463
Investment in and advances to unconsolidated entities, at equity	417,092	433,207
Deferred costs and other assets	205,034	169,135
Total assets	4,250,979	4,361,288
LIABILITIES:
Mortgage notes payable	1,115,608	983,269
Notes payable	957,566	982,697
Unsecured term loans	686,642	685,509
Revolving credit facility	204,145	286,002
Other indebtedness	97,601	0
Accounts payable, accrued expenses, intangibles, and deferred revenues	260,904	253,862
Distributions payable	3,252	2,992
Cash distributions and losses in unconsolidated entities, at equity	15,421	15,421
Total liabilities	3,341,139	3,209,752
Redeemable noncontrolling interests	3,265	3,265
Stockholders' Equity:
Common stock, $0.0001 par value, 350,000,000 shares authorized; 186,884,276 and 186,074,461 issued and outstanding as of December 31, 2019 and 2018, respectively	19	19
Capital in excess of par value	1,254,771	1,247,639
Accumulated deficit	(655,492)	(456,924)
Accumulated other comprehensive (loss) income	(5,525)	6,400
Total stockholders' equity	796,349	999,710
Noncontrolling interests	110,226	148,561
Total equity	906,575	1,148,271
Partners' Equity:
Total liabilities, redeemable noncontrolling interests and equity	4,250,979	4,361,288
Series H Preferred Stock
Stockholders' Equity:
Cumulative redeemable preferred stock	104,251	104,251
Series I Cumulative Redeemable Preferred Stock, $0.0001 par value, 3,800,000 shares issued and outstanding as of December 31, 2019 and 2018
Stockholders' Equity:
Cumulative redeemable preferred stock	98,325	98,325
Washington Prime Group, L.P.
ASSETS:
Investment properties at cost	5,902,406	5,914,705
Less: accumulated depreciation	2,397,736	2,283,764
Investment properties at cost, net	3,504,670	3,630,941
Cash and cash equivalents	41,421	42,542
Tenant receivables and accrued revenue, net	82,762	85,463
Investment in and advances to unconsolidated entities, at equity	417,092	433,207
Deferred costs and other assets	205,034	169,135
Total assets	4,250,979	4,361,288
LIABILITIES:
Mortgage notes payable	1,115,608	983,269
Notes payable	957,566	982,697
Unsecured term loans	686,642	685,509
Revolving credit facility	204,145	286,002
Other indebtedness	97,601	0
Accounts payable, accrued expenses, intangibles, and deferred revenues	260,904	253,862
Distributions payable	3,252	2,992
Cash distributions and losses in unconsolidated entities, at equity	15,421	15,421
Total liabilities	3,341,139	3,209,752
Redeemable noncontrolling interests	3,265	3,265
Partners' Equity:
General Partners' Capital Account	796,349	999,710
Limited partners, 34,682,956 and 34,755,660 units issued and outstanding as of December 31, 2019 and 2018, respectively	109,193	147,493
Total partners' equity	905,542	1,147,203
Noncontrolling interests	1,033	1,068
Total equity	906,575	1,148,271
Total liabilities, redeemable noncontrolling interests and equity	4,250,979	4,361,288
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	$ 593,773	$ 797,134

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
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)	186,884,276	186,074,461
Common stock, outstanding (in shares)	186,884,276	186,074,461
Washington Prime Group, L.P.
Limited Partner, common equity, shares issued (in shares)	34,682,956	34,755,660
Limited Partner, common equity, shares outstanding (in shares)	34,682,956	34,755,660
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)	186,884,276	186,074,461
General Partner shares outstanding (in shares)	186,884,276	186,074,461
Series H Preferred Stock
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
Series I Preferred Stock
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, 2019	Dec. 31, 2018	Dec. 31, 2017
REVENUE:
Rental income	$ 633,633	$ 690,432	$ 732,215
Other income	27,851	27,047	20,839
Total revenues	661,484	717,479	753,054
EXPENSES:
Property operating	154,328	148,433	146,529
Depreciation and amortization	271,320	257,796	258,740
Real estate taxes	82,139	86,665	89,617
Advertising and promotion	9,513	9,070	9,107
General and administrative	51,187	39,090	34,892
Ground rent	837	789	2,438
Impairment loss	35,256	0	66,925
Total operating expenses	604,580	541,843	608,248
Interest expense, net	(153,382)	(141,987)	(126,541)
Gain on disposition of interests in properties, net	38,373	24,602	124,771
Gain on extinguishment of debt, net	63,660	51,395	90,579
Income and other taxes	(1,296)	(1,532)	(3,417)
(Loss) income from unconsolidated entities	(1,499)	541	1,395
Net income	2,760	108,655	231,593
Net (loss) income attributable to noncontrolling interests	(1,514)	15,051	34,530
NET INCOME ATTRIBUTABLE TO THE COMPANY	4,274	93,604	197,063
Less: Preferred share dividends	(14,032)	(14,032)	(14,032)
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ (9,758)	$ 79,572	$ 183,031
(LOSS) EARNINGS PER COMMON SHARE, BASIC AND DILUTED (in dollars per share)	$ (0.05)	$ 0.42	$ 0.98
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS:
Limited partners	$ (1,799)	$ 14,735	$ 34,222
COMPREHENSIVE (LOSS) INCOME:
Net income	2,760	108,655	231,593
Unrealized (loss) income on interest rate derivative instruments	(14,102)	(1,284)	2,401
Comprehensive (loss) income	(11,342)	107,371	233,994
Comprehensive (loss) income attributable to noncontrolling interests	(3,691)	14,871	34,927
Comprehensive (loss) income attributable to common shareholders	(7,651)	92,500	199,067
Washington Prime Group, L.P.
REVENUE:
Rental income	633,633	690,432	732,215
Other income	27,851	27,047	20,839
Total revenues	661,484	717,479	753,054
EXPENSES:
Property operating	154,328	148,433	146,529
Depreciation and amortization	271,320	257,796	258,740
Real estate taxes	82,139	86,665	89,617
Advertising and promotion	9,513	9,070	9,107
General and administrative	51,187	39,090	34,892
Ground rent	837	789	2,438
Impairment loss	35,256	0	66,925
Total operating expenses	604,580	541,843	608,248
Interest expense, net	(153,382)	(141,987)	(126,541)
Gain on disposition of interests in properties, net	38,373	24,602	124,771
Gain on extinguishment of debt, net	63,660	51,395	90,579
Income and other taxes	(1,296)	(1,532)	(3,417)
(Loss) income from unconsolidated entities	(1,499)	541	1,395
Net income	2,760	108,655	231,593
Net (loss) income attributable to noncontrolling interests	$ 45	$ 76	$ 68
(LOSS) EARNINGS PER COMMON SHARE, BASIC AND DILUTED (in dollars per share)	$ (0.05)	$ 0.42	$ 0.98
NET INCOME ATTRIBUTABLE TO UNITHOLDERS	$ 2,715	$ 108,579	$ 231,525
Less: Preferred unit distributions	(14,272)	(14,272)	(14,272)
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS	(11,557)	94,307	217,253
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS:
General partner	(9,758)	79,572	183,031
Limited partners	(1,799)	14,735	34,222
NET (LOSS) INCOME ATTRIBUTABLE TO COMMON UNITHOLDERS	(11,557)	94,307	217,253
COMPREHENSIVE (LOSS) INCOME:
Net income	2,760	108,655	231,593
Unrealized (loss) income on interest rate derivative instruments	(14,102)	(1,284)	2,401
Comprehensive (loss) income	(11,342)	107,371	233,994
Comprehensive (loss) income attributable to noncontrolling interests	45	76	68
Comprehensive (loss) income attributable to common shareholders	$ (11,387)	$ 107,295	$ 233,926

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,760	$ 108,655	$ 231,593
Adjustments to reconcile net 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	273,204	259,022	259,167
Gain on extinguishment of debt, net	(63,660)	(51,395)	(90,579)
Gain on disposition of interests in properties and outparcels, net	(38,373)	(24,602)	(125,063)
Impairment loss	35,256	0	66,925
Change in estimate of collectibility of rental income	7,538	5,826	5,068
Loss (income) from unconsolidated entities	1,499	(541)	(1,395)
Distributions of income from unconsolidated entities	3,045	8,619	1,873
Changes in assets and liabilities:
Tenant receivables and accrued revenue, net	(2,212)	327	2,309
Deferred costs and other assets	(4,542)	(23,087)	(21,209)
Accounts payable, accrued expenses, deferred revenues and other liabilities	(5,210)	4,421	(4,058)
Net cash provided by operating activities	209,305	287,245	324,631
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions, net of cash acquired	0	(80,108)	0
Capital expenditures, net	(176,737)	(153,850)	(147,329)
Net proceeds from disposition of interests in properties and outparcels	53,449	39,212	218,801
Investments in unconsolidated entities	(19,820)	(20,178)	(50,911)
Distributions of capital from unconsolidated entities	27,990	35,096	73,289
Net cash (used in) provided by investing activities	(115,118)	(179,828)	93,850
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interest holders in properties	(80)	(66)	(114)
Redemption of limited partner units/preferred shares	(276)	(28)	(251)
Net proceeds from issuance of common shares, including common stock plans	1	0	13
Purchase of redeemable noncontrolling interest	0	0	(6,830)
Distributions on common and preferred shares/units	(237,544)	(236,821)	(236,152)
Proceeds from issuance of debt, net of transaction costs	602,742	708,563	1,293,322
Repayments of debt	(444,639)	(588,182)	(1,486,781)
Net cash used in financing activities	(79,796)	(116,534)	(436,793)
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	14,391	(9,117)	(18,312)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of year	61,084	70,201	88,513
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of year	75,475	61,084	70,201
Washington Prime Group, L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	2,760	108,655	231,593
Adjustments to reconcile net 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	273,204	259,022	259,167
Gain on extinguishment of debt, net	(63,660)	(51,395)	(90,579)
Gain on disposition of interests in properties and outparcels, net	(38,373)	(24,602)	(125,063)
Impairment loss	35,256	0	66,925
Change in estimate of collectibility of rental income	7,538	5,826	5,068
Loss (income) from unconsolidated entities	1,499	(541)	(1,395)
Distributions of income from unconsolidated entities	3,045	8,619	1,873
Changes in assets and liabilities:
Tenant receivables and accrued revenue, net	(2,212)	327	2,309
Deferred costs and other assets	(4,542)	(23,087)	(21,209)
Accounts payable, accrued expenses, deferred revenues and other liabilities	(5,210)	4,421	(4,058)
Net cash provided by operating activities	209,305	287,245	324,631
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions, net of cash acquired	0	(80,108)	0
Capital expenditures, net	(176,737)	(153,850)	(147,329)
Net proceeds from disposition of interests in properties and outparcels	53,449	39,212	218,801
Investments in unconsolidated entities	(19,820)	(20,178)	(50,911)
Distributions of capital from unconsolidated entities	27,990	35,096	73,289
Net cash (used in) provided by investing activities	(115,118)	(179,828)	93,850
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interest holders in properties	(80)	(66)	(114)
Redemption of limited partner units/preferred shares	(276)	(28)	(251)
Net proceeds from issuance of common units, including equity-based compensation plans	1	0	13
Purchase of redeemable noncontrolling interest	0	0	(6,830)
Distributions to unitholders	(237,544)	(236,821)	(236,152)
Proceeds from issuance of debt, net of transaction costs	602,742	708,563	1,293,322
Repayments of debt	(444,639)	(588,182)	(1,486,781)
Net cash used in financing activities	(79,796)	(116,534)	(436,793)
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	14,391	(9,117)	(18,312)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of year	61,084	70,201
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of year	$ 75,475	$ 61,084	$ 70,201

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Preferred StockSeries H Preferred Stock	Preferred StockSeries I Preferred Stock	Common Stock	Capital in Excess of Par Value	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income	Non-Controlling Interests	Redeemable Non-Controlling Interests
Balance at Dec. 31, 2016	$ 1,262,811	$ 1,093,443	$ 104,251	$ 98,325	$ 19	$ 1,232,638	$ (346,706)	$ 4,916	$ 169,368	$ 10,660
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options	13	13				13
Redemption of limited partner units	(251)								(251)
Exchange of limited partner units		2,463				2,463			(2,463)
Other	(146)	(146)				(146)
Equity-based compensation	6,402	5,280				5,280			1,122
Adjustments to noncontrolling interests		(330)				(330)			330
Purchase of redeemable noncontrolling interest	565	565				565				(7,395)
Distributions on common shares/units ($1.00 per common share/unit)	(221,994)	(186,919)					(186,919)		(35,075)
Distributions declared on preferred shares	(14,032)	(14,032)					(14,032)
Other comprehensive income (loss)	2,401	2,004						2,004	397
Net income (loss), excluding $240 of distributions to preferred unitholders	231,353	197,063					197,063		34,290
Balance at Dec. 31, 2017	1,267,122	1,099,404	104,251	98,325	19	1,240,483	(350,594)	6,920	167,718	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		168				168			(168)
Distributions on common shares/units ($1.00 per common share/unit)	(222,615)	(187,792)					(187,792)		(34,823)
Distributions declared on preferred shares	(14,032)	(14,032)					(14,032)
Other comprehensive income (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	19	1,247,639	(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		(637)				(637)			637
Distributions on common shares/units ($1.00 per common share/unit)	(223,612)	(188,810)					(188,810)		(34,802)
Distributions declared on preferred shares	(14,032)	(14,032)					(14,032)
Other comprehensive income (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	$ 19	$ 1,254,771	$ (655,492)	$ (5,525)	$ 110,226	$ 3,265

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Distributions on common shares/units, per common share/unit (in dollars per share)	$ 1	$ 1	$ 1
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.Partners' Equity	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 Partner Preferred EquityPartners' Equity	Washington Prime Group, L.P.General Partner Common EquityPartners' Equity	Washington Prime Group, L.P.Limited PartnersPartners' Equity
Balance at Dec. 31, 2016		$ 1,262,811	$ 1,261,707	$ 1,104	$ 10,660	$ 1,093,443	$ 202,576	$ 890,867	$ 168,264
Increase (Decrease) in Partners' Capital [Roll Forward]
Exercise of stock options	$ 13	13	13			13		13
Redemption of limited partner units	(251)	(251)	(251)						(251)
Exchange of limited partner units						2,463		2,463	(2,463)
Other		(146)	(146)			(146)		(146)
Equity-based compensation		6,402	6,402			5,280		5,280	1,122
Adjustments to noncontrolling interests						(330)		(330)	330
Purchase of redeemable noncontrolling interest	565	565	565		(7,395)	565		565
Distributions to common unitholders, net		(221,994)	(221,880)	(114)		(186,919)		(186,919)	(34,961)
Distributions declared on preferred units		(14,032)	(14,032)		(240)	(14,032)	(14,032)
Other comprehensive income (loss)	2,401	2,401	2,401			2,004		2,004	397
Net income	231,353	231,353	231,285	68	240	197,063	14,032	183,031	34,222
Balance at Dec. 31, 2017		1,267,122	1,266,064	1,058	3,265	1,099,404	202,576	896,828	166,660
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						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 income (loss)	(1,284)	(1,284)	(1,284)			(1,104)		(1,104)	(180)
Net income	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
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						(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 income (loss)	(14,102)	(14,102)	(14,102)			(11,925)		(11,925)	(2,177)
Net income	$ 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

Organization

Organization	12 Months Ended
	Dec. 31, 2019
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, 2019 , our assets consisted of material interests in 104 shopping centers in the United States, consisting of open air properties and enclosed retail properties, comprised of approximately 56 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 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, 2019
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, 2019 and 2018 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. 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. During the year ended December 31, 2019 , we sold our interest in undeveloped land that was previously identified as a VIE. As of December 31, 2019 , we have one VIE which consists of our interest in WPG L.P. There have been no changes during the year ended December 31, 2019 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, 2019 , 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, 2019 , our assets consisted of material interests in 104 shopping centers. The consolidated financial statements as of that date reflect the consolidation of 87 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 13 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 84.4% , 84.4% and 84.3% for the years ended December 31, 2019, 2018 and 2017 , respectively. As of December 31, 2019 and 2018 , WPG Inc.'s ownership interest in WPG L.P. was 84.5% and, 84.4% 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, 2019
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, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Cash and cash equivalents $ 41,421 $ 42,542 $ 52,019 Restricted cash 34,054 18,542 18,182 Total cash, cash equivalents and restricted cash $ 75,475 $ 61,084 $ 70,201 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, 2019 and 2018 . 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, 2019, 2018 and 2017 was $3,961 , $2,234 and $1,521 , respectively. We record depreciation on buildings and improvements utilizing the straight-line method over an estimated original useful life, which is generally five to 40 years . We review depreciable lives of investment properties periodically and we make adjustments when necessary to reflect a shorter economic life. We amortize tenant allowances and tenant improvements utilizing the straight-line method over the term of the related lease or occupancy term of the tenant, if shorter. We record depreciation on equipment and fixtures utilizing the straight-line method over three to ten years . 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 13 properties as of December 31, 2019 and 2018 (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 Accounting Standards Update ("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 Adoption of New Standards In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, "Leases (Topic 842)." This new guidance, including related ASUs that were subsequently issued, was effective January 1, 2019 and required lessees to recognize a lease liability and right of use ("ROU") asset, measured as the present value of lease payments, for both operating and financing leases with a term greater than 12 months. Additionally, the new standard made targeted changes to lessor accounting. The new leases standard required a modified retrospective transition approach for all leases existing at, or entered into after, January 1, 2017, with an option to use certain transition relief which allowed an entity to account for the impact of the adoption ASU 2016-02 with a cumulative adjustment to retained earnings, if necessary, on January 1, 2019, rather than January 1, 2017, eliminating the need to restate amounts presented prior to January 1, 2019. The Company adopted the new standard on January 1, 2019 and applied the new guidance utilizing the optional transition method noted above. The Company elected to use the "package of practical expedients," which allowed the Company not to reassess under the new standard prior conclusions about lease identification, lease classification, and initial direct costs. The Company did not make any adjustments to the opening balance of retained earnings upon adoption of the new standard given the nature of the impacts and other transition practical expedients elected by the Company. Upon adoption, the Company recognized a lease liability and corresponding ROU asset of approximately $14.4 million for the four material ground leases, two material office leases, and one material garage lease with a term of more than 12 months, and were included in "Deferred costs and other assets" and "Accounts payable, accrued expenses, intangibles and deferred revenues" respectively. For leases with a term of 12 months or less, the Company made an accounting policy election by underlying asset to not recognize lease liabilities and ROU assets. Additionally, the Company excluded certain office equipment leases due to materiality. All of these leases were classified as operating leases under legacy GAAP and the current classification was carried forward under ASU 2016-02. See "Note 9 - Commitments and Contingencies" for additional details. From a lessor perspective, the new guidance remained mostly similar to legacy GAAP as the Company elected the practical expedient to not separate non-lease components from lease components. This election resulted in a change on the Company's consolidated statements of operations and comprehensive (loss) income as the Company no longer presents minimum rents, overage rents, and tenant reimbursements as separate line items because the Company now accounts for these line items as a single combined lease component, rental income, on the basis of the lease component being the predominant component of the contract. As such, non-lease components, including common-area ("CAM") revenues, are now combined with lease components and are recognized on a straight-line basis to the extent the non-lease components are fixed. Additionally, ASU 2016-02 required the Company to recognize a change, after the commencement date, in our assessment of the collectibility of amounts to be received for operating leases as an adjustment to rental income rather than as a provision for credit losses. This requirement resulted in a change on the Company's consolidated statements of operations and comprehensive (loss) income as the Company no longer presents provision for credit losses as a separate line item and the adjustment is now recorded as a reduction to rental income. ASU 2016-02 also introduced certain changes to the lease classification rules for lessors. Accordingly, some leases may be classified as sales-type leases in the future. This change is not expected to have a material impact on the Company's financial statements. Finally, ASU 2016-02 disallowed the capitalization of internal leasing costs and legal costs, unless said costs are incremental to obtaining the lease contract, resulting in an increase in the Company's general and administrative expenses. For the years ended December 31, 2018 and 2017, we capitalized approximately $17.7 million and $16.9 million of internal legal and leasing costs, respectively, that would no longer qualify for capitalization under the new standard. The Company elected to use the practical expedient in transition to not re-evaluate costs that were previously capitalized. New Standards Issued But Not Yet Adopted In August 2018, the FASB issued ASU 2018-13, "Fair Value Measurements (ASC 820): Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurements." ASU 2018-13 eliminates certain disclosure requirements for all entities, requires public entities to disclose certain new information, and modifies some disclosure requirements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. We are currently evaluating the impact this ASU will have, if any, on our financial statements and related disclosures. In June 2016, the 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. This standard will be effective for fiscal years beginning after December 15, 2019. Our seller-provided bridge financing associated with our October 10, 2019 closing of Perennial (see Note 6 - "Indebtedness" for further details) and certain other miscellaneous accounts will be in scope of ASU 2016-13, but we do not expect this will have a material impact on our financial statements. Reclassifications Reclassifications were made to conform prior periods to our presentation of the consolidated statements of operations and comprehensive (loss) income due to the impact of adopting ASU 2016-02. Amounts previously disclosed as minimum rent, tenant reimbursements, and overage rent during the years ended December 31, 2018 and 2017 are now included in rental income and are no longer be presented as separate line items. Additionally, termination income of $3.5 million , which was previously disclosed in other income for each of the years ended December 31, 2018 and 2017, and provision for credit losses of $5.8 million and $5.1 million , which was previously disclosed as a separate line item during the years ended December 31, 2018 and 2017, respectively, were also reclassified to rental income for comparability of prior periods to the current period. Deferred Costs and Other Assets Deferred costs and other assets include the following as of December 31, 2019 and 2018 : 2019 2018 Deferred leasing costs and corporate improvements, net $ 53,729 $ 74,260 In-place lease intangibles, net 27,538 38,453 Acquired above market lease intangibles, net 13,419 18,827 Mortgage and other escrow deposits 34,054 18,542 Seller financing receivable (1) 55,000 — Prepaids, notes receivable and other assets, net 21,294 19,053 $ 205,034 $ 169,135 (1) During the year ended December 31, 2019 , the Company provided a $55.0 million bridge financing to certain counterparties as part of the Perennial transaction, as defined in Note 6 - "Indebtedness." 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, 2019 and 2018 are as follows: 2019 2018 Deferred leasing costs $ 121,363 $ 142,903 Corporate improvements 6,099 6,072 Accumulated amortization (73,733 ) (74,715 ) Deferred lease costs and corporate improvements, net $ 53,729 $ 74,260 Amortization of deferred leasing costs is a component of depreciation and amortization expense. The accompanying consolidated statements of operations include amortization expense of $24.5 million , $27.9 million , and $25.9 million for the years ended December 31, 2019, 2018 and 2017 , 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 a fixed minimum 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 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. 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, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Operating lease payments, fixed $ 539,458 $ 592,481 $ 632,055 Operating lease payments, variable 90,922 91,784 96,096 Amortization of straight-line rent, inducements, and rent abatements 4,409 3,022 1,809 Net amortization/accretion of above and below-market leases 6,382 8,971 7,323 Change in estimate of collectibility of rental income (7,538 ) (5,826 ) (5,068 ) Total rental income $ 633,633 $ 690,432 $ 732,215 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, 2019, 2018 and 2017 is as follows: For the Year Ended December 31, 2019 2018 2017 Balance, beginning of year $ 10,131 $ 7,867 $ 8,578 Change in estimate of collectibility of rental income 7,538 5,826 5,068 Accounts deconsolidated upon joint venture formation (see Note 5) — — (1,271 ) Accounts written off, net of recoveries, and other (4,758 ) (3,562 ) (4,508 ) Balance, end of year $ 12,911 $ 10,131 $ 7,867 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, 2019 are as follows: 2020 $ 467,066 2021 392,633 2022 328,972 2023 267,483 2024 205,129 Thereafter 633,706 $ 2,294,989 Other Income The following table summarizes our other income for the years ended December 31, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Ancillary $ 11,016 $ 10,275 $ 9,848 Fee related 11,682 9,527 7,906 Miscellaneous 5,153 7,245 3,085 Total other income $ 27,851 $ 27,047 $ 20,839 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, 2019, 2018 and 2017 , we recorded federal income tax (benefits) provisions of $(79) , $525 , and $(87) , 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, 2019 and 2018 , the Company had a deferred tax asset of $410 and $110 , respectively, 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, 2019 and 2018 , the TRS valuation allowance for federal and state net operating loss carryovers was $410 and $110 , respectively. As of December 31, 2019 and 2018 , 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, 2019, 2018 and 2017 : 2019 2018 2017 $ % $ % $ % Common shares Ordinary income $ 0.5001 50.01 % $ 1.0000 100.00 % $ 0.4306 43.06 % Capital gain 0.4999 49.99 % — — 0.5694 56.94 % $ 1.0000 100.00 % $ 1.0000 100.00 % $ 1.0000 100.00 % Series H Preferred Shares Ordinary income $ 0.9378 50.01 % $ 1.8752 100.00 % $ 1.0093 43.06 % Capital gain 0.9374 49.99 % — — 1.3347 56.94 % $ 1.8752 100.00 % $ 1.8752 100.00 % $ 2.3440 100.00 % Series I Preferred Shares Ordinary income $ 0.8596 50.01 % $ 1.7188 100.00 % $ 0.9251 43.06 % Capital gain 0.8592 49.99 % — — 1.2234 56.94 % $ 1.7188 100.00 % $ 1.7188 100.00 % $ 2.1485 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, 2019 and 2018 : 2019 2018 Limited partners' interests in WPG L.P. $ 109,193 $ 147,493 Noncontrolling interests in properties 1,033 1,068 Total noncontrolling interests $ 110,226 $ 148,561 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, 2019 and 2018 , 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, 2019
Business Combinations [Abstract]
Investment in Real Estate	Investment in Real Estate Summary Investment properties consisted of the following as of December 31, 2019 and 2018 : 2019 2018 Land $ 823,887 $ 836,214 Buildings and improvements 4,974,330 4,980,939 Total land, buildings and improvements 5,798,217 5,817,153 Furniture, fixtures and equipment 104,189 97,552 Investment properties at cost 5,902,406 5,914,705 Less: accumulated depreciation 2,397,736 2,283,764 Investment properties at cost, net $ 3,504,670 $ 3,630,941 ​ ​ ​ Construction in progress included above $ 115,280 $ 35,068 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, 2019 and 2017. Acquisition activity for the year ended December 31, 2018 and disposition activity for the years ended December 31, 2019, 2018 and 2017 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. 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. We are 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, 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 Excluding any subsequent amendments thereto, the Company has approximately $4.6 million of outparcels from the first purchase and sale agreement and approximately $29.0 million from the second purchase and sale agreement remaining to close, subject to due diligence and closing conditions. 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 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). 2017 Dispositions On November 3, 2017, we completed the sale of Colonial Park Mall, located in Harrisburg, Pennsylvania, to an unaffiliated private real estate investor for a purchase price of $15.0 million . The net proceeds were used for general corporate purposes. On June 13, 2017, we sold 49% of our interest in Malibu Lumber Yard, located in Malibu, California, as part of the O'Connor Joint Venture II transaction (as defined below and as discussed in in Note 5 - "Investment in Unconsolidated Entities, at Equity"). On June 7, 2017, we completed the sale of Morgantown Commons, located in Morgantown, West Virginia, to an unaffiliated private real estate investor for a purchase price of approximately $6.7 million . The net proceeds were used for general corporate purposes. On May 16, 2017, we completed the sale of an 80,000 square foot (unaudited) vacant anchor parcel at Indian Mound Mall, located in Newark, Ohio, to an unaffiliated private real estate investor for a purchase price of approximately $0.8 million . The net proceeds were used for general corporate purposes. On May 12, 2017, we completed the transaction with regard to the ownership and operation of six of the Company's retail properties and certain related outparcels (the "O'Connor Joint Venture II" as discussed in Note 5 - "Investment in Unconsolidated Entities, at Equity"). On February 21, 2017, we completed the sale of Gulf View Square, located in Port Richey, Florida, and River Oaks Center, located in Chicago, Illinois, to unaffiliated private real estate investors for an aggregate purchase price of $42.0 million . The net proceeds from the transaction were used to reduce corporate debt. On January 10, 2017, we completed the sale of Virginia Center Commons, located in Glen Allen, Virginia, to an unaffiliated private real estate investor for a purchase price of $9.0 million . The net proceeds from the transaction were used to reduce corporate debt. In connection with the 2017 dispositions, the Company recorded a net gain of $124.8 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, 2017 . On October 3, 2017, Valle Vista Mall, located in Harlingen, Texas, 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, 2019 and 2018 : Balance as of Intangible Asset/Liability December 31, 2019 December 31, 2018 Above-market leases - Company is lessor $ 46,745 $ 48,373 Below-market leases - Company is lessor $ 108,345 $ 117,395 In-place leases $ 103,043 $ 109,379 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 $6,382 , $8,971 , and $7,323 for the years ended December 31, 2019, 2018 and 2017 , 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 $11,409 , $14,780 , and $18,457 for the years ended December 31, 2019, 2018 and 2017 , 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, 2019 and 2018 : Balance as of Intangible Location on the Weighted Average Remaining Amortization (in years) December 31, 2019 December 31, 2018 Above-market leases - Company is lessor Deferred costs and other assets 7.1 $ 13,419 $ 18,827 Below-market leases - Company is lessor Accounts payable, accrued expenses, intangibles and deferred revenues 12.3 $ 54,885 $ 66,651 In-place leases Deferred costs and other assets 12.0 $ 27,538 $ 38,453 The future net amortization of intangibles as an increase (decrease) to net income as of December 31, 2019 is as follows: Above/Below-Market Leases-Lessor In-place Leases Total Net Intangible Amortization 2020 $ 4,264 $ (6,944 ) $ (2,680 ) 2021 4,417 (3,351 ) 1,066 2022 4,015 (2,612 ) 1,403 2023 3,509 (2,116 ) 1,393 2024 3,395 (1,615 ) 1,780 Thereafter 21,866 (10,900 ) 10,966 $ 41,466 $ (27,538 ) $ 13,928 Impairment 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. During the third quarter of 2019, we recorded impairment charges related to Chautauqua Mall, located in Lakewood, New York, Matteson Plaza, located in Matteson, Illinois, and New Towne Mall, located in New Philadelphia, Ohio. In the case of Chautauqua Mall and New Towne Mall, 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 estimated future cash flows of each property, 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). As it relates to Matteson Plaza, the impairment charge was due to the 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 the executed purchase and sale agreement with an unaffiliated real estate investor (See Note 12 - "Subsequent Events"). We recorded an aggregate impairment charge for these three properties of approximately $28.9 million in the consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2019. During the fourth quarter of 2017, a major anchor tenant of Rushmore Mall informed us of their intention to close their store at the property. The impending closure was deemed a triggering event and, therefore, we evaluated this property in conjunction with our quarterly impairment review and preparation of our financial statements for the year ended December 31, 2017. We compared the estimated fair value of $37.5 million to the related carrying value of $75.0 million , which resulted in the recording of an impairment charge of approximately $37.5 million in the consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2017. On November 3, 2017, the Company completed the sale of Colonial Park Mall for $15.0 million . During the third quarter of 2017, we compared the fair value measurement of the property to its relative carrying value, which resulted in the recording of an impairment charge of approximately $20.9 million in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2017. The impairment charge was due to the 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. During the first quarter of 2017, the Company entered into a purchase and sale agreement to dispose of Morgantown Commons, which was sold in the second quarter of 2017. Earlier in 2017, we shortened the hold period used in assessing impairment for the asset, which resulted in the carrying value not being recoverable from the expected cash flows. The purchase offer represented the best available evidence of fair value for this property. We compared the fair value to the carrying value, which resulted in the recording of an impairment charge of approximately $8.5 million in the accompanying consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2017.

Investment in Unconsolidated En

Investment in Unconsolidated Entities, at Equity	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 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 is effective May 6, 2020 and will extend 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 requires 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 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 During the year ended December 31, 2017, we completed an additional joint venture transaction with O'Connor with respect to the ownership and operation of seven of the Company's retail properties and certain related outparcels, consisting of the following: The Arboretum, located in Austin, Texas; Arbor Hills; the Oklahoma City Properties, located in Oklahoma City, Oklahoma; Gateway Centers, located in Austin, Texas; Malibu Lumber Yard; Palms Crossing I and II, located in McAllen, Texas; and The Shops at Arbor Walk, located in Austin, Texas (the "O'Connor Joint Venture II"). The transaction valued the properties at $598.6 million before closing adjustments and debt assumptions, and we retained a non-controlling 51% interest. The transaction generated net proceeds to the Company of approximately $138.9 million , after taking into consideration costs associated with the transaction and the assumption of debt, which we used to reduce the Company's debt as well as for general corporate purposes. We deconsolidated the properties included in the O'Connor Joint Venture II and recorded a gain in connection with this partial sale of $126.1 million , which is included in gain on disposition of interests in properties, net in the accompanying consolidated statements of operations and comprehensive (loss) income. The gain was recorded pursuant to ASC 360-20 and calculated based upon proceeds received, less 49% of the book value of the deconsolidated net assets. Our retained 51% non-controlling equity method interest was valued at historical cost based upon the pro rata book value of the retained interest in the net assets. We retained management and leasing responsibilities for the properties included in the O'Connor Joint Venture II. In connection with the formation of this joint venture, we recorded transaction costs of approximately $6.4 million as part of our basis in this investment. • The Seminole Joint Venture This investment consists 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's effective financial interest in this property (after preferences) was approximately 0% for the year ended December 31, 2019 . We retain day to day management, leasing, and development responsibilities for the Seminole Joint Venture. • 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 $0.5 million and $5.3 million as of December 31, 2019 and 2018 , 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 the O'Connor Joint Venture I, Seminole Joint Venture, and our indirect 12.5% ownership interest are included below for all periods presented. The results for the O'Connor Joint Venture II are included below for the years ended December 31, 2019 and 2018, and from May 12, 2017 (the closing date of the venture), and in the case of Malibu Lumber Yard from June 13, 2017 (the date the property was contributed to the venture), through December 31, 2017. For the Year Ended December 31, 2019 2018 2017 Total revenues $ 262,463 $ 262,410 $ 234,314 Operating expenses 110,399 106,402 93,502 Depreciation and amortization 101,953 97,810 89,397 Operating income 50,111 58,198 51,415 (Loss) gain on sale of interests in property and unconsolidated entities, net (1,288 ) 583 1,585 Interest expense, taxes, and other, net (61,523 ) (52,477 ) (45,906 ) Net (loss) income from the Company's unconsolidated real estate entities $ (12,700 ) $ 6,304 $ 7,094 Our share of (loss) income from the Company's unconsolidated real estate entities $ (1,499 ) $ 541 $ 1,395 The following table presents the combined balance sheets for the unconsolidated joint venture properties for the periods indicated above during which the Company accounted for these investments as unconsolidated entities as of December 31, 2019 and 2018 : December 31, 2019 2018 Assets: Investment properties at cost, net $ 1,905,336 $ 1,964,699 Construction in progress 38,280 21,019 Cash and cash equivalents 43,137 43,169 Tenant receivables and accrued revenue, net 31,238 31,661 Deferred costs and other assets (1) 301,133 147,481 Total assets $ 2,319,124 $ 2,208,029 Liabilities and Members’ Equity: Mortgage notes payable $ 1,282,307 $ 1,292,801 Accounts payable, accrued expenses, intangibles, and deferred revenues (2) 297,163 137,073 Total liabilities 1,579,470 1,429,874 Members’ equity 739,654 778,155 Total liabilities and members’ equity $ 2,319,124 $ 2,208,029 Our share of members’ equity, net $ 384,332 $ 396,229 Our share of members’ equity, net $ 384,332 $ 396,229 Advances and excess investment 17,339 21,557 Net investment in and advances to unconsolidated entities, at equity (3) $ 401,671 $ 417,786 (1) Includes value of acquired in-place leases and acquired above-market leases with a net book value of $79,457 and $91,609 as of December 31, 2019 and 2018 , respectively. Additionally, includes ROU assets of $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2019 . (2) Includes the net book value of below market leases of $45,757 and $57,392 as of December 31, 2019 and 2018 , respectively. Additionally, includes lease liabilities of $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2019 . (3) Includes $417,092 and $433,207 of investment in and advances to unconsolidated entities, at equity as of December 31, 2019 and 2018 , respectively, and $15,421 and $15,421 of cash distributions and losses in unconsolidated entities, at equity as of December 31, 2019 and 2018 , respectively.

Indebtedness

Indebtedness	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Indebtedness	Indebtedness Mortgage Debt Total mortgage indebtedness at December 31, 2019 and 2018 was as follows: 2019 2018 Face amount of mortgage loans $ 1,117,242 $ 980,276 Fair value adjustments, net 3,463 5,764 Debt issuance cost, net (5,097 ) (2,771 ) Carrying value of mortgage loans $ 1,115,608 $ 983,269 The mortgage debt had weighted average interest and maturity of 4.61% and 4.5 years at December 31, 2019 and 5.00% and 3.5 years at December 31, 2018 . A roll forward of mortgage indebtedness from December 31, 2018 to December 31, 2019 is summarized as follows: Balance at December 31, 2018 $ 983,269 Debt amortization payments (18,115 ) Repayment of debt (47,175 ) Debt borrowings, net of issuance costs 293,416 Debt canceled upon lender foreclosures, net of debt issuance costs (94,633 ) Amortization of fair value and other adjustments (2,301 ) Amortization of debt issuance costs 1,147 Balance at December 31, 2019 $ 1,115,608 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, located in Stockton, California, for one year. The extended maturity date is June 8, 2020, subject to a one -year extension available at our option subject to compliance with the terms of the underlying loan agreement and payment of customary extension fees. 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 . The extended maturity date is April 1, 2020, subject to a one-year extension available at our option subject to compliance with the terms of the underlying loan agreement and payment of customary extension fees. Pursuant to the terms of the extension option, the Company entered into a derivative swap agreement to fix the interest rate of the note payable at one-month LIBOR plus 2.27% , or 4.92% per annum through both extension periods. 2018 Activity On October 23, 2018 , the $94.0 million mortgage on Rushmore Mall was canceled upon a deed-in-lieu of foreclosure agreement (see "Covenants" section below for additional details). On October 2, 2018 , an affiliate of WPG Inc. repaid the $8.3 million mortgage loan on Whitehall Mall, located in Whitehall, Pennsylvania. This repayment was funded by cash on hand. On September 27, 2018 , an affiliate of WPG Inc. closed on a $35.0 million full-recourse mortgage note payable with a three-year term and a fixed rate of 4.48% secured by Southgate Mall. The mortgage note payable requires interest only payments and will initially mature on September 27, 2021 , subject to two one-year extensions available at our option subject to compliance with the terms of the underlying loan agreement and payment of customary extension fees. The proceeds were used to reduce corporate debt and for ongoing redevelopment efforts. On June 8, 2018 , the Company exercised the first of three options to extend the maturity date of the $65.0 million term loan secured by Weberstown Mall for one year . On January 19, 2018 , an affiliate of WPG Inc. repaid the $86.5 million mortgage loan on The Outlet Collection ® | Seattle, located in Auburn, Washington. This repayment was funded by borrowings on the Revolver (as defined below). Unsecured Debt The following table identifies our total unsecured debt outstanding at December 31, 2019 and December 31, 2018 : December 31, December 31, Notes payable: Face amount - the Exchange Notes (1) $ 250,000 $ 250,000 Face amount - Senior Notes due 2024 (2) 720,900 750,000 Debt discount, net (7,864 ) (9,680 ) Debt issuance costs, net (5,470 ) (7,623 ) Total carrying value of notes payable $ 957,566 $ 982,697 Unsecured 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 (3,358 ) (4,491 ) Total carrying value of unsecured term loans $ 686,642 $ 685,509 Revolving credit facility: (3)(6) Face amount $ 207,000 $ 290,000 Debt issuance costs, net (2,855 ) (3,998 ) Total carrying value of revolving credit facility $ 204,145 $ 286,002 (1) The Exchange Notes were issued at a 0.028% discount, bear interest at 3.850% per annum and mature on April 1, 2020. (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 due to the credit downgrade. The Senior Notes due 2024 mature on August 15, 2024. (3) The unsecured revolving credit facility, or "Revolver" and unsecured term loan, or "Term Loan" are collectively known as the "Facility." (4) The Term Loan bears interest at one-month LIBOR plus 2.10% 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 4.86% per annum through June 30, 2021. At December 31, 2019 , the applicable interest rate on the unhedged portion of the Term Loan was one-month LIBOR plus 2.10% or 3.86% . (5) The December 2015 Term Loan bears interest at one-month LIBOR plus 2.35% 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 4.06% per annum through maturity. (6) The Revolver provides borrowings on a revolving basis up to $650.0 million at one-month LIBOR plus 1.80% 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, 2019 , we had an aggregate available borrowing capacity of $442.8 million under the Revolver, net of $0.2 million reserved for outstanding letters of credit. At December 31, 2019 , the applicable interest rate on the Revolver was one-month LIBOR plus 1.80% , or 3.56% . 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. During the year ended December 31, 2019 , Fitch Ratings, Moody's Investor Service, and S&P Global Ratings lowered their credit rating on WPG L.P.'s unsecured long-term indebtedness, which increased interest rates on our Facility ( 55 basis point increase effective May 2, 2019), December 2015 Term Loan ( 55 basis point increase effective February 15, 2019), and Senior Notes due 2024 ( 50 basis point increase effective August 15, 2019). 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. On January 22, 2018 , WPG L.P. amended the terms of the Facility to provide for borrowings of $1.0 billion . The Facility can be increased to $1.5 billion through currently uncommitted Facility commitments. Excluding the accordion feature, the Facility includes a $650.0 million Revolver and $350.0 million Term Loan. The $350.0 million Term Loan was fully funded at closing, and the Company used the proceeds to repay a $270.0 million outstanding term loan and to pay down the Revolver. The following table presents the borrowings and paydowns on the Revolver during the years ended December 31, 2019 and December 31, 2018 : 2019 2018 Beginning Balance $ 290,000 $ 155,000 Borrowings 267,000 332,000 Paydowns (350,000 ) (197,000 ) Ending Balance $ 207,000 $ 290,000 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. During 2018, borrowings under the Revolver were primarily used for 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. Other Indebtedness (Perennial) On October 10, 2019 , WPG L.P. closed on the sale and leaseback of four assets (collectively, the "Properties") pursuant to the purchase and sale agreement executed on July 24, 2019 between WPG L.P. and Mall Ground Portfolio, LLC, an affiliate of Perennial Investment & Advisors, LLC and Kawa Capital Partners, LLC ("the Ground Lessor"). The Properties are: 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. Under the agreement, the Ground Lessor acquired a fee interest in the land at the Properties for a price of approximately $98.9 million . Concurrently, WPG L.P. entered into a new 99 -year master ground lease for the leasehold interest at the Properties. The master ground lease includes fixed annual payments to the Ground Lessor at an initial annualized rate of 7.4% and contains annual rent escalators over the aforementioned term. The agreement includes an option for WPG L.P. to repurchase the fee interest in the land at $109.3 million in year 30 of the master ground lease. If WPG L.P. does not exercise this option, then the Ground Lessor will retain the fee interest in the land, and the fee interest in the improvements and development rights will transfer to the Ground Lessor at the end of the 99 -year ground lease term. WPG L.P. received approximately $42.3 million in proceeds upon closing, net of $55.0 million in bridge financing provided by WPG L.P. to the Ground Lessor and closing costs. The bridge financing has a maximum five -year balloon term, which can be pre-paid without penalty, and carries an interest rate of 4.0% . The bridge financing is included in "Deferred costs and other assets" on the accompanying consolidated balance sheet at December 31, 2019 . The net proceeds were generally used to fund ongoing redevelopment efforts and for general corporate purposes. WPG L.P. continues to own a fee interest in the improvements and development rights through the term of the aforementioned master ground lease and continues to manage, lease and develop the Properties and maintains full control over the leasehold interest and in the land and fee interest in the improvements and development rights at the respective Properties. For accounting purposes, the repurchase option precluded WPG L.P. from meeting the criteria for sales recognition. As such, the gross proceeds received have been accounted for as a financial liability, net of capitalized closing costs of $1.6 million , and subject to accretion over the relevant term. As of December 31, 2019 , the net financial liability was approximately $97.6 million , including $0.3 million of accretion. Expense is being recognized utilizing an effective interest rate of 8.56% during the repurchase period. During the year ended December 31, 2019 , we recognized expense of $1.9 million , which is included in interest expense, net in the accompanying consolidated statements of operations and comprehensive (loss) income. Covenants Our unsecured 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, 2019 , management believes the Company is in compliance with all covenants of its unsecured debt. The total balance of mortgages was approximately $1.1 billion as of December 31, 2019 . At December 31, 2019 , 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 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. The Company continues to manage and lease the property. 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 ("Rushmore"). 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 at Rushmore. 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. On March 30, 2017, the Company transferred the $40.0 million mortgage loan secured by Valle Vista Mall to the special servicer at the request of the borrower, a consolidated subsidiary of the Company. On May 18, 2017, we received a notice of default letter, dated that same date, from the special servicer because the borrower did not repay the loan in full by its May 10, 2017 maturity date. On October 3, 2017, an affiliate of WPG Inc. transitioned the property to the lender. On June 6, 2016, we received a notice of default letter, dated June 3, 2016, from the special servicer to the borrower of the $99.7 million mortgage loan secured by Southern Hills Mall. The letter was sent because the borrower, a consolidated subsidiary of the Company, did not repay the loan in full by its June 1, 2016 maturity date. On October 27, 2016, we received notification that a receiver has been appointed to manage and lease the property. On October 17, 2017, an affiliate of WPG Inc. completed a discounted payoff of the mortgage loan for $55.0 million and retained ownership and management of the property. On June 30, 2016, we received a notice, dated that same date, that the $87.3 million mortgage loan secured by Mesa Mall, located in Grand Junction, Colorado, had been transferred to the special servicer due to the payment default that occurred when the borrower, a consolidated subsidiary of the Company, did not repay the loan in full by its June 1, 2016 maturity date. On April 25, 2017, the Company completed a discounted payoff of the mortgage loan for $63.0 million and retained ownership and management of the property. At December 31, 2019 , 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. 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. During the year ended December 31, 2017, the Company recognized a net gain of $90.6 million based on the cancellation of mortgage debt of $108.9 million related to discounted payoff of the mortgage note payable secured by Southern Hills Mall, ownership transfer of Valle Vista Mall, and discounted payoff of the mortgage note payable secured by Mesa Mall, 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, 2019 are as follows: 2020 $ 346,176 2021 276,910 2022 690,649 2023 406,006 2024 984,553 Thereafter 390,133 Total principal maturities 3,094,427 Bond discount (7,864 ) Fair value adjustments, net 3,463 Debt issuance costs, net (18,341 ) Future accretion of other indebtedness (10,123 ) Total mortgages and corporate indebtedness $ 3,061,562 Cash paid for interest for the years ended December 31, 2019, 2018 and 2017 was $149,775 , $141,641 and $107,609 , 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 unsecured debt swapped to fixed-rate and our other indebtedness, as discussed in Note 6 - "Indebtedness") 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, 2019 and 2018 are summarized as follows: 2019 2018 Book value of fixed- rate mortgages (1) $ 1,052,242 $ 915,276 Fair value of fixed-rate mortgages $ 1,062,205 $ 928,129 Weighted average discount rates assumed in calculation of fair value for fixed-rate mortgages 4.24 % 4.57 % Book value of fixed-rate corporate debt (1) $ 1,660,062 $ 1,590,000 Fair value of fixed-rate corporate debt $ 1,673,105 $ 1,485,672 Weighted average discount rates assumed in calculation of fair value for fixed-rate corporate debt 6.03 % 5.62 % (1) Excludes deferred financing fees and applicable debt discounts.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2019
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 $3.5 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 ® . On May 9, 2018 , the Company entered into four three-year swaps, totaling $250.0 million with an effective date of June 29, 2018 , to replace two three-year swaps totaling $270.0 million , which matured on June 30, 2018 . As of December 31, 2019 , the Company had 11 outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk with a notional value of $641.3 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, 2019 and 2018 : Derivatives designated as hedging instruments: Balance Sheet December 31, 2019 December 31, 2018 Interest rate products Asset Derivatives Deferred costs and other assets $ — $ 9,306 Interest rate products Liability Derivatives Accounts payable, accrued expenses, intangibles and deferred revenues $ 6,592 $ 1,913 The asset derivative instruments were reported at their fair value of $0 and $9,306 in deferred costs and other assets at December 31, 2019 and 2018 , respectively, with a corresponding adjustment to OCI for the unrealized gains and losses (net of noncontrolling interest allocation). The liability derivative instruments were reported at their fair value $6,592 and $1,913 in accounts payable, accrued expenses, intangibles, and deferred revenues at December 31, 2019 and 2018 , 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 AOCI 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, 2019, 2018 and 2017 : Derivatives in Cash Flow Hedging Relationships Location of Gain or (Loss) Recognized in Income on Derivatives For the Year Ended December 31, 2019 2018 2017 Amount of Gain or (Loss) Recognized in OCI on Derivative $ (13,363 ) $ 1,054 $ 1,256 Amount of Gain or (Loss) Reclassified from AOCI into Income Interest expense $ (739 ) $ (2,338 ) $ 1,145 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, 2019, 2018 and 2017 : Effect of Cash Flow Hedges on Consolidated Statements of Operations For the year ended December 31, 2019 2018 2017 Total interest (expense) presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded $ (153,382 ) $ (141,987 ) $ (126,541 ) Amount of (gain) loss reclassified from accumulated other comprehensive (loss) income into interest expense $ (739 ) $ (2,338 ) $ 1,145 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, 2019 , 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 $6,592 . As of December 31, 2019 , the Company has not posted any collateral related to these agreements. The Company is not in default with any of these provisions. If the Company had breached any of these provisions at December 31, 2019 , it would have been required to settle its obligation under these agreements at their termination value of $6,592 . 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, 2019 and 2018 , 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, 2019 and 2018 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 3) Balance at December 31, 2019 Derivative instruments, net $ — $ (6,592 ) $ — $ (6,592 ) Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs 3) Balance at December 31, 2018 Derivative instruments, net $ — $ 7,393 $ — $ 7,393

Equity

Equity	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 . 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, 2019 and 2018 . 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, 2017, WPG Inc. issued 314,577 shares of common stock to a limited partner 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, 2019 , WPG Inc. had reserved 34,682,956 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 10,000,000 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 500,000 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 7,290,000 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 Time Vested LTIP Awards The Company has issued time-vested LTIP units ("Inducement LTIP Units") to certain executive officers and employees, pursuant to LTIP Unit Award Agreements between the Company and each of the grant recipients. These awards will vested and the related fair value was expensed over a four -year vesting period. During the years ended December 31, 2019, 2018 and 2017 , the Company did not grant any Inducement LTIP Units. As of December 31, 2019 , no Inducement LTIP Units were outstanding. A summary of the Inducement LTIP Units and changes during the year ended December 31, 2019 is listed below: Activity for the Year Ended December 31, 2019 Inducement LTIP Units Weighted Outstanding unvested at beginning of year 12,832 $ 17.53 Units granted — $ — Units vested (12,832 ) $ 17.53 Units forfeited — $ — Outstanding unvested at end of year — $ — During the year ended December 31, 2018, 25,036 LTIP Units, with a weighted average grant date fair value per share of $17.97 , vested. During the year ended December 31, 2017, 29,685 LTIP Units, with a weighted average grant date fair value per share of $18.33 , vested. Annual Long-Term Incentive Awards During the years ended December 31, 2019, 2018 and 2017 , the Company approved the terms and conditions of the 2019, 2018, and 2017 annual awards (the "2019 Annual Long-Term Incentive Awards," "2018 Annual Long-Term Incentive Awards," and "2017 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 2019 Annual Long-Term Incentive Awards, 2018 Annual Long-Term Incentive Awards, and 2017 Annual Long-Term Incentive Awards, respectively: 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards 2017 Annual Long-Term Incentive Awards Grant Date February 20, 2019 February 20, 2018 February 21, 2017 RSUs issued 572,163 587,000 358,198 Grant date fair value per unit $5.77 $6.10 $9.58 PSUs issued 572,163 587,000 358,198 Grant date fair value per unit $4.98 $4.88 $7.72 The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards 2017 Annual Long-Term Incentive Awards Risk free rate 2.45% 2.39% 1.49% Volatility 26.53% 24.70% 20.52% Dividend yield 17.33% 16.39% 10.44% During 2016, the Company approved the performance criteria and maximum dollar amount of the 2016 annual awards (the "2016 Annual Long-Term Incentive Awards"), that generally range from 30% - 100% of actual base salary, for certain executive officers and employees of the Company. The number of awards was determined by converting the cash value of the award to a number of RSUs (the "Allocated RSUs") based on the closing price of WPG Inc.'s common shares for the final 15 trading days of 2016. Eventual recipients were eligible to receive a percentage of the Allocated RSUs based on the Company's performance on its strategic goals detailed in the Company's 2016 cash bonus plan and the Company's relative TSR compared to a peer group based on companies with similar assets and revenue. Payout for 50% of the Allocated RSUs was based on the Company's performance on the strategic goals and the payout on the remaining 50% was based on the Company's TSR performance. Both the strategic goal component as well as the TSR performance were achieved at target, resulting in a 100% payout. During the year ended December 31, 2017, the Company awarded 324,237 Allocated RSUs, with a grant date fair value of $2.2 million , related to the 2016 Annual Long-Term Incentive Awards, which will vest in one-third installments on each of February 21, 2018, 2019 and 2020, subject to the participant's continued employment with the Company through each vesting date and the participant's continued compliance with certain applicable covenants, except in instances that result in accelerated vesting due to severance arrangements. The 2016 Annual Long-Term Incentive Awards that are based upon TSR were calculated using a Monte Carlo simulation model. The total amount of compensation to be recognized over the performance period, and the assumptions used to value the 2016 Annual Long-Term Incentive Awards are provided below: 2016 Fair value per share of Allocated RSUs/Units $ 3.81 Total amount to be recognized over the performance period $ 2,516 Risk free rate 0.44 % Volatility 31.40 % Dividend yield 10.05 % WPG Restricted Share Awards The WPG Restricted Shares related to unvested restricted shares held by certain executive employees. During the year ended December 31, 2019 , the remaining 9,033 of outstanding WPG Restricted Shares vested. There were no restricted shares granted during the years ended December 31, 2019, 2018 and 2017 . The total original fair value of the restricted shares vested during the years ended December 31, 2019, 2018 and 2017 was $33 , $391 , and $2,182 , respectively. 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 500,000 RSUs, with a grant date fair value of $1.8 million , and 500,000 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% Dividend yield 27.93% 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, 2019 and changes during the year are presented below: Activity for the Year Ended December 31, 2019 PSUs Weighted Outstanding unvested at beginning of year 883,601 $ 5.90 PSUs granted 1,072,163 $ 3.73 PSUs forfeited (198,561 ) $ 5.69 Outstanding unvested at end of year 1,757,203 $ 4.60 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, 2019, 2018 and 2017 , the Company issued 1,406,455 , 812,440 , and 843,435 RSUs, respectively. Of the 1,406,455 RSUs issued in 2019, 500,000 RSUs with a fair value of $1.8 million relates to Mr. Conforti's August 2, 2019 special grant and 572,163 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 812,440 RSUs issued in 2018, 587,000 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). Of the 843,435 RSUs issued in 2017, 682,435 RSUs with a fair value of $5.6 million relates to the annual long-term incentive award issuances that occurred in February 2017 (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 $6.3 million over a weighted average period of 2.3 years. A summary of the status of the WPG RSUs at December 31, 2019 and changes during the year are presented below: Activity for the Year Ended December 31, 2019 RSUs Weighted Outstanding unvested at beginning of year 1,569,313 $ 8.07 RSUs granted 1,406,455 $ 4.69 RSUs vested (948,072 ) $ 8.71 RSUs forfeited (145,282 ) $ 6.84 Outstanding unvested at end of year 1,882,414 $ 5.32 The weighted average grant date fair value per share of RSUs granted during the years ended December 31, 2019, 2018 and 2017 was $4.69 , $6.28 , and $8.07 , respectively. The total fair value of the RSUs vested during the years ended December 31, 2019, 2018 and 2017 was $8,254 , $3,320 , and $1,128 , 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, 2019, 2018 and 2017 . A summary of the status of the Company's option plans at December 31, 2019 and changes during the year are listed below: Activity for the Year Ended December 31, 2019 Stock Options Weighted Outstanding at beginning of year 679,741 $ 2.08 Options granted — $ — Options exercised (391 ) $ 14.46 Options forfeited/expired (78,061 ) $ 2.64 Outstanding at end of year 601,289 $ 2.02 The following table summarizes information regarding the options outstanding at December 31, 2019 : Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $5.76 13,583 0.2 $5.76 13,583 0.2 $5.76 $11.97 30,415 1.3 $11.97 30,415 1.3 $11.97 $12.67 48,373 2.4 $12.67 48,373 2.4 $12.67 $16.56 94,420 3.4 $16.56 94,420 3.4 $16.56 $13.10 61,498 4.3 $13.10 61,498 4.3 $13.10 $14.28 198,000 5.4 $14.28 198,000 5.4 $14.28 $9.95 155,000 6.4 $9.95 155,000 6.4 $9.95 601,289 4.6 $12.96 601,289 4.6 $12.96 The following table summarizes the aggregate intrinsic value of options that are: outstanding, exercisable and exercised. It also depicts the fair value of options that have vested. For the Year Ended December 31, 2019 Aggregate intrinsic value of options outstanding $ — Aggregate intrinsic value of options exercisable $ — Aggregate intrinsic value of options exercised $ 1 Aggregate fair value of options vested $ 32 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. The aggregate intrinsic value of options that exercised and the aggregate fair value of options that vested during the year ended December 31, 2017 was $12 and $187 , respectively. Share Award Related Compensation Expense During the years ended December 31, 2019, 2018 and 2017 , the Company recorded share award related compensation expense pertaining to the award and option plans noted above of $7.8 million , $8.3 million , and $6.4 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, 2019 and 2018 , the Board declared common share/unit dividends of $1.00 per common share/unit, respectively.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
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. 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, 2019 , 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, 2019, 2018 and 2017 of $837 , $789 and $2,438 , respectively, of which $20 , $50 and $100 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, 2019, 2018 and 2017 of $2,609 , $2,668 , and $2,397 , respectively. On January 1, 2019, we recorded a lease liability and corresponding ROU asset of approximately $14.4 million . The weighted average remaining lease term for our consolidated operating leases was 18.5 years and the weighted average discount rate for determining the lease liabilities was 8.7% at January 1, 2019. 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, 2019 are as follows: 2020 $ 2,049 2021 2,069 2022 2,099 2023 1,427 2024 999 Thereafter 20,378 Total lease payments 29,021 Less: Discount 16,107 Present value of lease liabilities $ 12,914 The weighted average remaining lease term for our consolidated operating leases was 19.2 years and the weighted average discount rate for determining the lease liabilities was 8.7% at December 31, 2019 . We had no financing leases as of December 31, 2019 .

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Hannah Laikin During year ended December 31, 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 year ended December 31, 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, 2019. Mrs. Laikin’s place of employment is the Company’s Indianapolis, Indiana corporate office in the Leasing Department. Ms. 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. Consulting Agreement with Mark S. Ordan Mr. Mark S. Ordan served as a member of the Board until May 18, 2017 at which time his term on the Board expired and he retired from service. During 2017, Mr. Ordan and the Company were parties to a consulting agreement in which Mr. Ordan provided consulting services to the Company for a fee. The agreement was terminated on May 28, 2017, and the Company paid Mr. Ordan approximately $0.2 million during 2017. The Company has no further payment obligations under the agreement.

(Loss) Earnings Per Common Shar

(Loss) Earnings Per Common Share/Unit	12 Months Ended
	Dec. 31, 2019
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, 2019 2018 2017 (Loss) Earnings Per Common Share, Basic: Net (loss) income attributable to common shareholders - basic $ (9,758 ) $ 79,572 $ 183,031 Weighted average shares outstanding - basic 188,445,434 187,696,339 186,829,385 (Loss) earnings per common share, basic $ (0.05 ) $ 0.42 $ 0.98 (Loss) Earnings Per Common Share, Diluted: Net (loss) income attributable to common shareholders - basic $ (9,758 ) $ 79,572 $ 183,031 Net (loss) income attributable to common unitholders (1,799 ) 14,735 34,222 Net (loss) income attributable to common shareholders - diluted $ (11,557 ) $ 94,307 $ 217,253 Weighted average common shares outstanding - basic 188,445,434 187,696,339 186,829,385 Weighted average operating partnership units outstanding 34,730,014 34,703,770 34,808,890 Weighted average additional dilutive securities outstanding — 603,674 337,508 Weighted average common shares outstanding - diluted 223,175,448 223,003,783 221,975,783 (Loss) earnings per common share, diluted $ (0.05 ) $ 0.42 $ 0.98 For the years ended December 31, 2019, 2018 and 2017 , 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, 2019, the potential dilutive effect of 601,289 contingently-issuable outstanding stock options, 571,074 restricted stock units, and 1,763,265 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, 2019 2018 2017 (Loss) Earnings Per Common Unit, Basic and Diluted: Net (loss) income attributable to common unitholders - basic and diluted $ (11,557 ) $ 94,307 $ 217,253 Weighted average common units outstanding - basic 223,175,448 222,400,109 221,638,275 Weighted average additional dilutive securities outstanding — 603,674 337,508 Weighted average shares outstanding - diluted 223,175,448 223,003,783 221,975,783 (Loss) earnings per common unit, basic and diluted $ (0.05 ) $ 0.42 $ 0.98 For the years ended December 31, 2019, 2018 and 2017 , 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, 2019, the potential dilutive effect of 601,289 contingently-issuable outstanding stock options, 571,074 restricted stock units, and 1,763,265 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, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 14, 2020, we completed the sale of Matteson Plaza 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. On January 24, 2020, we purchased an anchor parcel at Southgate Mall for a purchase price of $10.0 million , which was funded by borrowings on the Revolver. 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 February 25, 2020, the Board declared common share/unit dividends of $0.125 per common share/unit. The dividend is payable on March 16, 2020 to shareholders/unitholders of record on March 9, 2020.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) Quarterly 2019 and 2018 data is summarized in the table below. Quarterly amounts may not sum to annual amounts due to rounding. First Second Third Fourth 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 $ (0.03 ) $ (0.09 ) $ (0.02 ) $ 0.09 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 $ (0.03 ) $ (0.09 ) $ (0.02 ) $ 0.09 2018 Total revenue $ 176,994 $ 178,117 $ 179,419 $ 182,949 Net income $ 20,185 $ 15,519 $ 4,115 $ 68,836 Washington Prime Group Inc.: Net income attributable to the Company $ 17,524 $ 13,594 $ 3,971 $ 58,515 Net income attributable to common shareholders $ 14,016 $ 10,086 $ 463 $ 55,007 Earnings per common share—basic and diluted $ 0.07 $ 0.05 $ 0.00 $ 0.29 Washington Prime Group, L.P.: Net income attributable to unitholders $ 20,185 $ 15,519 $ 4,115 $ 68,836 Net income attributable to common unitholders $ 16,617 $ 11,951 $ 547 $ 65,192 Earnings per common unit—basic and diluted $ 0.07 $ 0.05 $ 0.00 $ 0.29

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Real Estate and Accumulated Depreciation	SCHEDULE III Washington Prime Group Inc. and Washington Prime Group, L.P. Real Estate and Accumulated Depreciation December 31, 2019 (dollars in thousands) 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 $ 17,307 $ 1,712 $ 15,227 $ 851 $ 20,033 $ 2,563 $ 35,260 $ 37,823 $ 25,221 1972 Ashland Town Center Ashland, KY 35,954 13,462 68,367 (396 ) 4,591 13,066 72,958 86,024 15,825 2015 Bowie Town Center Bowie (Wash, D.C.), MD — 2,479 60,322 236 10,245 2,715 70,567 73,282 41,583 2001 Boynton Beach Mall Boynton Beach (Miami), FL — 22,240 78,804 6,977 33,867 29,217 112,671 141,888 77,075 1996 Brunswick Square East Brunswick (New York), NJ 69,737 8,436 55,838 — 35,675 8,436 91,513 99,949 60,201 1996 Charlottesville Fashion Square Charlottesville, VA 45,146 — 54,738 — 10,617 — 65,355 65,355 45,883 1997 Chautauqua Mall Lakewood, NY — 3,116 9,641 (2,171 ) 13,455 945 23,096 24,041 18,336 1996 Chesapeake Square Theater Chesapeake (VA Beach), VA — 628 9,536 — (738 ) 628 8,798 9,426 2,466 1996 Clay Terrace Carmel (Indianapolis), IN — 39,030 115,207 43 11,686 39,073 126,893 165,966 26,861 2014 Cottonwood Mall Albuquerque, NM 95,283 10,122 69,958 5,042 25,803 15,164 95,761 110,925 52,330 1996 Dayton Mall Dayton, OH 79,092 10,899 160,723 3,607 12,092 14,506 172,815 187,321 27,557 2015 Edison Mall(4) Fort Myers, FL — 11,529 107,350 — 35,306 11,529 142,656 154,185 85,118 1997 Georgesville Square Columbus, OH — 720 — — — 720 — 720 — 2015 Grand Central Mall Parkersburg, WV 38,748 18,956 89,736 — 23,410 18,956 113,146 132,102 33,126 2015 Great Lakes Mall(4) Mentor (Cleveland), OH — 12,302 100,362 (121 ) 54,357 12,181 154,719 166,900 84,271 1996 Indian Mound Mall Newark, OH — 7,109 19,205 (252 ) 2,938 6,857 22,143 29,000 5,796 2015 Irving Mall(4) Irving (Dallas), TX — 6,737 17,479 2,533 45,472 9,270 62,951 72,221 44,971 1971 Jefferson Valley Mall(4) Yorktown Heights (New York), NY — 4,868 30,304 — 71,433 4,868 101,737 106,605 52,653 1983 Lima Mall Lima, OH — 7,659 35,338 — 16,805 7,659 52,143 59,802 34,495 1996 Lincolnwood Town Center Lincolnwood (Chicago), IL 47,524 7,834 63,480 — 20,627 7,834 84,107 91,941 58,657 1990 Lindale Mall Cedar Rapids, IA — 14,106 58,286 (1,243 ) 14,674 12,863 72,960 85,823 26,923 1998 Longview Mall Longview, TX — 259 3,567 3,319 22,454 3,578 26,021 29,599 9,567 1978 Mall at Fairfield Commons, The Beavercreek, OH — 18,194 175,426 (687 ) 33,947 17,507 209,373 226,880 37,854 2015 Maplewood Mall St. Paul (Minneapolis), MN — 17,119 80,758 — 27,121 17,119 107,879 124,998 57,521 2002 Markland Mall Kokomo, IN — — 7,568 2,883 30,399 2,883 37,967 40,850 13,690 1968 Melbourne Square Melbourne, FL — 15,762 55,891 3,650 38,206 19,412 94,097 113,509 56,346 1996 Mesa Mall Grand Junction, CO — 12,784 80,639 (1,717 ) 9,084 11,067 89,723 100,790 37,383 1998 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 Morgantown Mall Morgantown, WV — 10,219 77,599 — 3,017 10,219 80,616 90,835 17,211 2015 Muncie Mall Muncie, IN 33,132 172 5,776 48 29,111 220 34,887 35,107 24,981 1970 New Towne Mall New Philadelphia, OH — 3,172 33,112 (2,046 ) (9,517 ) 1,126 23,595 24,721 10,827 2015 Northtown Mall Blaine, MN — 18,603 57,341 — 7,864 18,603 65,205 83,808 16,094 2015 Northwoods Mall Peoria, IL — 1,185 12,779 3,021 55,438 4,206 68,217 72,423 41,792 1983 Oak Court Mall Memphis, TN 36,260 15,673 57,304 — 14,347 15,673 71,651 87,324 54,577 1997 Orange Park Mall Orange Park (Jacksonville), FL — 12,998 65,121 (267 ) 49,366 12,731 114,487 127,218 73,955 1994 Outlet Collection ® | Seattle, The Auburn (Seattle), WA — 38,751 107,094 — 17,496 38,751 124,590 163,341 26,508 2015 Paddock Mall Ocala, FL — 11,198 39,727 — 24,741 11,198 64,468 75,666 37,789 1996 Port Charlotte Town Center Port Charlotte, FL 41,207 5,471 58,570 — 19,099 5,471 77,669 83,140 53,247 1996 Rolling Oaks Mall San Antonio, TX — 1,929 38,609 — 17,074 1,929 55,683 57,612 40,334 1988 Southern Hills Mall Sioux City, IA — 15,025 75,984 3,825 7,149 18,850 83,133 101,983 31,943 1998 Southern Park Mall Youngstown, OH — 16,982 77,767 (236 ) 41,669 16,746 119,436 136,182 77,358 1996 Southgate Mall Missoula, MT 35,000 17,040 35,896 — 1,526 17,040 37,422 54,462 2,985 2018 Sunland Park Mall El Paso, TX — 2,896 28,900 (524 ) 7,129 2,372 36,029 38,401 29,627 1988 Town Center at Aurora ® Aurora (Denver), CO 51,250 9,959 56,832 9,975 60,151 19,934 116,983 136,917 86,012 1998 Waterford Lakes Town Center Orlando, FL 178,526 8,679 72,836 — 29,984 8,679 102,820 111,499 62,449 1999 Weberstown Mall Stockton, CA 65,000 9,909 92,589 — 5,164 9,909 97,753 107,662 18,306 2015 Westminster Mall Westminster (Los Angeles), CA 76,776 43,464 84,709 (180 ) 43,343 43,284 128,052 171,336 72,662 1998 WestShore Plaza Tampa, FL — 53,904 120,191 3,668 13,509 57,572 133,700 191,272 21,665 2015 Open Air Properties Bloomingdale Court Bloomingdale (Chicago), IL — 8,422 26,184 (551 ) 18,925 7,871 45,109 52,980 31,347 1987 Bowie Town Center Strip Bowie (Wash, D.C.), MD — 231 4,597 — 1,063 231 5,660 5,891 2,952 2001 Canyon View Marketplace Grand Junction, CO 5,120 1,370 9,570 — 120 1,370 9,690 11,060 1,379 2015 Chesapeake Center Chesapeake (Virginia Beach), VA — 4,410 11,241 — 1,639 4,410 12,880 17,290 10,830 1996 Concord Mills Marketplace Concord (Charlotte), NC 16,000 8,036 21,167 — 1,043 8,036 22,210 30,246 6,676 2007 Countryside Plaza Countryside (Chicago), IL — 332 8,507 2,554 12,403 2,886 20,910 23,796 14,182 1977 Dare Centre Kill Devil Hills, NC — — 5,702 — 2,700 — 8,402 8,402 4,632 2004 DeKalb Plaza King of Prussia (Philadelphia), PA — 1,955 3,405 — 1,512 1,955 4,917 6,872 2,928 2003 Empire East Sioux Falls, SD — 3,350 10,552 — 4,115 3,350 14,667 18,017 4,210 1998 Fairfax Court Fairfax (Wash, D.C.), VA — 8,078 34,997 (647 ) 2,124 7,431 37,121 44,552 8,348 2014 Fairfield Town Center Houston, TX — 4,745 5,044 3,371 46,115 8,116 51,159 59,275 5,921 2014 Forest Plaza Rockford, IL 30,250 4,132 16,818 453 13,099 4,585 29,917 34,502 19,004 1985 Gaitway Plaza Ocala, FL — 5,445 26,687 — 3,681 5,445 30,368 35,813 7,096 2014 Greenwood Plus Greenwood (Indianapolis), IN — 1,129 1,792 (57 ) 4,970 1,072 6,762 7,834 4,852 1979 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 Henderson Square King of Prussia (Philadelphia), PA — 4,223 15,124 — 1,277 4,223 16,401 20,624 7,793 2003 Keystone Shoppes Indianapolis, IN — — 4,232 2,118 5,630 2,118 9,862 11,980 4,671 1997 Lake Plaza Waukegan (Chicago), IL — 2,487 6,420 — 2,736 2,487 9,156 11,643 6,165 1986 Lake View Plaza Orland Park (Chicago), IL — 4,702 17,543 (89 ) 18,812 4,613 36,355 40,968 24,658 1986 Lakeline Plaza Cedar Park (Austin), TX 49,710 5,822 30,875 — 15,906 5,822 46,781 52,603 26,549 1998 Lima Center Lima, OH — 1,781 5,151 — 10,060 1,781 15,211 16,992 10,964 1996 Lincoln Crossing O'Fallon (St. Louis), IL — 674 2,192 — 9,792 674 11,984 12,658 4,348 1990 MacGregor Village Cary, NC — 502 8,891 — 11,374 502 20,265 20,767 5,246 2004 Mall of Georgia Crossing Buford (Atlanta), GA 21,680 9,506 32,892 — 3,396 9,506 36,288 45,794 21,447 1999 Markland Plaza Kokomo, IN — 206 738 — 8,374 206 9,112 9,318 5,245 1974 Martinsville Plaza Martinsville, VA — — 584 — 3,070 — 3,654 3,654 546 1967 Matteson Plaza Matteson (Chicago), IL — 1,771 9,737 (1,152 ) 202 619 9,939 10,558 9,939 1988 Muncie Towne Plaza Muncie, IN 10,550 267 10,509 86 3,931 353 14,440 14,793 8,940 1998 North Ridge Shopping Center Raleigh, NC 11,500 385 12,826 — 7,926 385 20,752 21,137 8,016 2004 Northwood Plaza Fort Wayne, IN — 148 1,414 — 3,955 148 5,369 5,517 3,389 1974 Plaza at Buckland Hills, The Manchester, CT — 17,355 43,900 (281 ) 8,901 17,074 52,801 69,875 8,844 2014 Richardson Square Richardson (Dallas), TX — 6,285 — 990 14,672 7,275 14,672 21,947 6,691 1996 Rockaway Commons Rockaway (New York), NJ — 5,149 26,435 (117 ) 16,960 5,032 43,395 48,427 21,855 1998 Rockaway Town Plaza Rockaway (New York), NJ — — 18,698 2,225 5,583 2,225 24,281 26,506 10,897 2004 Royal Eagle Plaza Coral Springs (Miami), FL — 2,153 24,216 (152 ) 11,955 2,001 36,171 38,172 8,019 2014 Shops at North East Mall, The Hurst (Dallas), TX — 12,541 28,177 402 7,989 12,943 36,166 49,109 25,566 1999 St. Charles Towne Plaza Waldorf (Wash, D.C.), MD — 8,216 18,993 (62 ) 10,907 8,154 29,900 38,054 19,065 1987 Tippecanoe Plaza Lafayette, IN — — 745 234 5,857 234 6,602 6,836 4,425 1974 University Center Mishawaka, IN — 2,119 8,365 — 5,178 2,119 13,543 15,662 10,795 1996 University Town Plaza Pensacola, FL — 6,009 26,945 (579 ) 773 5,430 27,718 33,148 10,173 2013 Village Park Plaza Carmel (Indianapolis), IN — 19,565 51,873 (935 ) 2,643 18,630 54,516 73,146 15,896 2014 Washington Plaza Indianapolis, IN — 263 1,833 — 3,329 263 5,162 5,425 4,403 1996 West Ridge Outlots Topeka, KS — 1,376 4,560 39 (2,845 ) 1,415 1,715 3,130 1,247 1988 West Town Corners Altamonte Springs (Orlando), FL — 6,821 24,603 (174 ) 8,355 6,647 32,958 39,605 7,705 2014 Westland Park Plaza Orange Park (Jacksonville), FL — 5,576 8,775 — 276 5,576 9,051 14,627 2,520 2014 White Oaks Plaza Springfield, IL 26,490 3,169 14,267 63 10,713 3,232 24,980 28,212 14,589 1986 Whitehall Mall Whitehall, PA — 8,500 28,512 — 5,037 8,500 33,549 42,049 9,728 2014 Wolf Ranch Georgetown (Austin), TX — 21,999 51,547 (186 ) 16,604 21,813 68,151 89,964 33,695 2005 Other Developments — — — — 9,953 — 9,953 9,953 — $ 1,117,242 $ 776,496 $ 3,550,321 $ 47,391 $ 1,424,009 $ 823,887 $ 4,974,330 $ 5,798,217 $ 2,320,417 (1) Reconciliation of Real Estate Properties: The changes in real estate assets (which excludes furniture, fixtures and equipment) for the years ended December 31, 2019, 2018 and 2017 are as follows: 2019 2018 2017 Balance, beginning of year $ 5,817,153 $ 5,715,996 $ 6,205,387 Acquisitions 10,899 72,647 14,366 Improvements 178,669 143,123 135,713 Disposals* (208,504 ) (114,613 ) (639,470 ) Balance, end of year $ 5,798,217 $ 5,817,153 $ 5,715,996 *Primarily represents properties that have been deconsolidated upon sale of controlling interest, sold properties and fully depreciated assets which have been disposed. Further, includes impairment charges of $35,256 , $0 , and $66,925 for the years ended December 31, 2019, 2018 and 2017 , respectively. The following reconciles investment properties at cost per the consolidated balance sheet to the balance per Schedule III as of December 31, 2019 : 2019 Investment properties at cost $ 5,902,406 Less: furniture, fixtures and equipment (104,189 ) Total cost per Schedule III $ 5,798,217 The unaudited aggregate cost for federal income tax purposes of real estate assets presented was $4,665,380 as of December 31, 2019 . (2) Reconciliation of Accumulated Depreciation: The changes in accumulated depreciation and amortization for the years ended December 31, 2019, 2018 and 2017 are as follows: 2019 2018 2017 Balance, beginning of year $ 2,212,476 $ 2,076,948 $ 2,063,107 Depreciation expense 226,696 205,724 205,078 Disposals (118,755 ) (70,196 ) (191,237 ) Balance, end of year $ 2,320,417 $ 2,212,476 $ 2,076,948 The following reconciles accumulated depreciation per the consolidated balance sheet to the balance per Schedule III as of December 31, 2019 : 2019 Accumulated depreciation $ 2,397,736 Less: furniture, fixtures and equipment (77,319 ) Total accumulated depreciation per Schedule III $ 2,320,417 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)

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
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, 2019, 2018 and 2017 was $3,961 , $2,234 and $1,521 , respectively. We record depreciation on buildings and improvements utilizing the straight-line method over an estimated original useful life, which is generally five to 40 years . We review depreciable lives of investment properties periodically and we make adjustments when necessary to reflect a shorter economic life. We amortize tenant allowances and tenant improvements utilizing the straight-line method over the term of the related lease or occupancy term of the tenant, if shorter. We record depreciation on equipment and fixtures utilizing the straight-line method over three to ten years .
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 13 properties as of December 31, 2019 and 2018 (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	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 Accounting Standards Update ("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 Adoption of New Standards In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, "Leases (Topic 842)." This new guidance, including related ASUs that were subsequently issued, was effective January 1, 2019 and required lessees to recognize a lease liability and right of use ("ROU") asset, measured as the present value of lease payments, for both operating and financing leases with a term greater than 12 months. Additionally, the new standard made targeted changes to lessor accounting. The new leases standard required a modified retrospective transition approach for all leases existing at, or entered into after, January 1, 2017, with an option to use certain transition relief which allowed an entity to account for the impact of the adoption ASU 2016-02 with a cumulative adjustment to retained earnings, if necessary, on January 1, 2019, rather than January 1, 2017, eliminating the need to restate amounts presented prior to January 1, 2019. The Company adopted the new standard on January 1, 2019 and applied the new guidance utilizing the optional transition method noted above. The Company elected to use the "package of practical expedients," which allowed the Company not to reassess under the new standard prior conclusions about lease identification, lease classification, and initial direct costs. The Company did not make any adjustments to the opening balance of retained earnings upon adoption of the new standard given the nature of the impacts and other transition practical expedients elected by the Company. Upon adoption, the Company recognized a lease liability and corresponding ROU asset of approximately $14.4 million for the four material ground leases, two material office leases, and one material garage lease with a term of more than 12 months, and were included in "Deferred costs and other assets" and "Accounts payable, accrued expenses, intangibles and deferred revenues" respectively. For leases with a term of 12 months or less, the Company made an accounting policy election by underlying asset to not recognize lease liabilities and ROU assets. Additionally, the Company excluded certain office equipment leases due to materiality. All of these leases were classified as operating leases under legacy GAAP and the current classification was carried forward under ASU 2016-02. See "Note 9 - Commitments and Contingencies" for additional details. From a lessor perspective, the new guidance remained mostly similar to legacy GAAP as the Company elected the practical expedient to not separate non-lease components from lease components. This election resulted in a change on the Company's consolidated statements of operations and comprehensive (loss) income as the Company no longer presents minimum rents, overage rents, and tenant reimbursements as separate line items because the Company now accounts for these line items as a single combined lease component, rental income, on the basis of the lease component being the predominant component of the contract. As such, non-lease components, including common-area ("CAM") revenues, are now combined with lease components and are recognized on a straight-line basis to the extent the non-lease components are fixed. Additionally, ASU 2016-02 required the Company to recognize a change, after the commencement date, in our assessment of the collectibility of amounts to be received for operating leases as an adjustment to rental income rather than as a provision for credit losses. This requirement resulted in a change on the Company's consolidated statements of operations and comprehensive (loss) income as the Company no longer presents provision for credit losses as a separate line item and the adjustment is now recorded as a reduction to rental income. ASU 2016-02 also introduced certain changes to the lease classification rules for lessors. Accordingly, some leases may be classified as sales-type leases in the future. This change is not expected to have a material impact on the Company's financial statements. Finally, ASU 2016-02 disallowed the capitalization of internal leasing costs and legal costs, unless said costs are incremental to obtaining the lease contract, resulting in an increase in the Company's general and administrative expenses. For the years ended December 31, 2018 and 2017, we capitalized approximately $17.7 million and $16.9 million of internal legal and leasing costs, respectively, that would no longer qualify for capitalization under the new standard. The Company elected to use the practical expedient in transition to not re-evaluate costs that were previously capitalized. New Standards Issued But Not Yet Adopted In August 2018, the FASB issued ASU 2018-13, "Fair Value Measurements (ASC 820): Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurements." ASU 2018-13 eliminates certain disclosure requirements for all entities, requires public entities to disclose certain new information, and modifies some disclosure requirements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted. We are currently evaluating the impact this ASU will have, if any, on our financial statements and related disclosures.
Reclassifications	Reclassifications
Deferred Leasing Costs and Corporate Improvements	Deferred Leasing Costs and Corporate Improvements
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 a fixed minimum 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 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. 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, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Operating lease payments, fixed $ 539,458 $ 592,481 $ 632,055 Operating lease payments, variable 90,922 91,784 96,096 Amortization of straight-line rent, inducements, and rent abatements 4,409 3,022 1,809 Net amortization/accretion of above and below-market leases 6,382 8,971 7,323 Change in estimate of collectibility of rental income (7,538 ) (5,826 ) (5,068 ) Total rental income $ 633,633 $ 690,432 $ 732,215 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, 2019, 2018 and 2017 is as follows: For the Year Ended December 31, 2019 2018 2017 Balance, beginning of year $ 10,131 $ 7,867 $ 8,578 Change in estimate of collectibility of rental income 7,538 5,826 5,068 Accounts deconsolidated upon joint venture formation (see Note 5) — — (1,271 ) Accounts written off, net of recoveries, and other (4,758 ) (3,562 ) (4,508 ) Balance, end of year $ 12,911 $ 10,131 $ 7,867 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, 2019 are as follows: 2020 $ 467,066 2021 392,633 2022 328,972 2023 267,483 2024 205,129 Thereafter 633,706 $ 2,294,989 Other Income The following table summarizes our other income for the years ended December 31, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Ancillary $ 11,016 $ 10,275 $ 9,848 Fee related 11,682 9,527 7,906 Miscellaneous 5,153 7,245 3,085 Total other income $ 27,851 $ 27,047 $ 20,839 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, 2019, 2018 and 2017 , we recorded federal income tax (benefits) provisions of $(79) , $525 , and $(87) , 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, 2019 and 2018 , the Company had a deferred tax asset of $410 and $110 , respectively, 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, 2019 and 2018 , the TRS valuation allowance for federal and state net operating loss carryovers was $410 and $110 , respectively. As of December 31, 2019 and 2018 , 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.
Noncontrolling Interests for WPG Inc. and Redeemable Noncontrolling Interests for WPG Inc.	Redeemable Noncontrolling Interests for WPG Inc. At December 31, 2019 and 2018 , 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, 2019
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, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Cash and cash equivalents $ 41,421 $ 42,542 $ 52,019 Restricted cash 34,054 18,542 18,182 Total cash, cash equivalents and restricted cash $ 75,475 $ 61,084 $ 70,201
Schedule of Deferred Costs and Other Assets	Deferred costs and other assets include the following as of December 31, 2019 and 2018 : 2019 2018 Deferred leasing costs and corporate improvements, net $ 53,729 $ 74,260 In-place lease intangibles, net 27,538 38,453 Acquired above market lease intangibles, net 13,419 18,827 Mortgage and other escrow deposits 34,054 18,542 Seller financing receivable (1) 55,000 — Prepaids, notes receivable and other assets, net 21,294 19,053 $ 205,034 $ 169,135 (1) During the year ended December 31, 2019 , the Company provided a $55.0 million bridge financing to certain counterparties as part of the Perennial transaction, as defined in Note 6 - "Indebtedness."
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure	Details of deferred leasing costs and corporate improvements as of December 31, 2019 and 2018 are as follows: 2019 2018 Deferred leasing costs $ 121,363 $ 142,903 Corporate improvements 6,099 6,072 Accumulated amortization (73,733 ) (74,715 ) Deferred lease costs and corporate improvements, net $ 53,729 $ 74,260
Operating Lease, Lease Income	The following table summarizes our rental income for the years ended December 31, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Operating lease payments, fixed $ 539,458 $ 592,481 $ 632,055 Operating lease payments, variable 90,922 91,784 96,096 Amortization of straight-line rent, inducements, and rent abatements 4,409 3,022 1,809 Net amortization/accretion of above and below-market leases 6,382 8,971 7,323 Change in estimate of collectibility of rental income (7,538 ) (5,826 ) (5,068 ) Total rental income $ 633,633 $ 690,432 $ 732,215
Schedule of Collectability of Operating Lease Receivables	The following table provides a rollforward of activity during the years ended December 31, 2019, 2018 and 2017 is as follows: For the Year Ended December 31, 2019 2018 2017 Balance, beginning of year $ 10,131 $ 7,867 $ 8,578 Change in estimate of collectibility of rental income 7,538 5,826 5,068 Accounts deconsolidated upon joint venture formation (see Note 5) — — (1,271 ) Accounts written off, net of recoveries, and other (4,758 ) (3,562 ) (4,508 ) Balance, end of year $ 12,911 $ 10,131 $ 7,867
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, 2019 are as follows: 2020 $ 467,066 2021 392,633 2022 328,972 2023 267,483 2024 205,129 Thereafter 633,706 $ 2,294,989
Disaggregated Income	The following table summarizes our other income for the years ended December 31, 2019, 2018 and 2017 : For the Year Ended December 31, 2019 2018 2017 Ancillary $ 11,016 $ 10,275 $ 9,848 Fee related 11,682 9,527 7,906 Miscellaneous 5,153 7,245 3,085 Total other income $ 27,851 $ 27,047 $ 20,839
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, 2019, 2018 and 2017 : 2019 2018 2017 $ % $ % $ % Common shares Ordinary income $ 0.5001 50.01 % $ 1.0000 100.00 % $ 0.4306 43.06 % Capital gain 0.4999 49.99 % — — 0.5694 56.94 % $ 1.0000 100.00 % $ 1.0000 100.00 % $ 1.0000 100.00 % Series H Preferred Shares Ordinary income $ 0.9378 50.01 % $ 1.8752 100.00 % $ 1.0093 43.06 % Capital gain 0.9374 49.99 % — — 1.3347 56.94 % $ 1.8752 100.00 % $ 1.8752 100.00 % $ 2.3440 100.00 % Series I Preferred Shares Ordinary income $ 0.8596 50.01 % $ 1.7188 100.00 % $ 0.9251 43.06 % Capital gain 0.8592 49.99 % — — 1.2234 56.94 % $ 1.7188 100.00 % $ 1.7188 100.00 % $ 2.1485 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, 2019 and 2018 : 2019 2018 Limited partners' interests in WPG L.P. $ 109,193 $ 147,493 Noncontrolling interests in properties 1,033 1,068 Total noncontrolling interests $ 110,226 $ 148,561

Investment in Real Estate (Tabl

Investment in Real Estate (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of Real Estate Properties	Investment properties consisted of the following as of December 31, 2019 and 2018 : 2019 2018 Land $ 823,887 $ 836,214 Buildings and improvements 4,974,330 4,980,939 Total land, buildings and improvements 5,798,217 5,817,153 Furniture, fixtures and equipment 104,189 97,552 Investment properties at cost 5,902,406 5,914,705 Less: accumulated depreciation 2,397,736 2,283,764 Investment properties at cost, net $ 3,504,670 $ 3,630,941 ​ ​ ​ Construction in progress included above $ 115,280 $ 35,068
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 with Four Corners that occurred during the 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, 2019 and 2018 : Balance as of Intangible Asset/Liability December 31, 2019 December 31, 2018 Above-market leases - Company is lessor $ 46,745 $ 48,373 Below-market leases - Company is lessor $ 108,345 $ 117,395 In-place leases $ 103,043 $ 109,379 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, 2019 and 2018 : Balance as of Intangible Location on the Weighted Average Remaining Amortization (in years) December 31, 2019 December 31, 2018 Above-market leases - Company is lessor Deferred costs and other assets 7.1 $ 13,419 $ 18,827 Below-market leases - Company is lessor Accounts payable, accrued expenses, intangibles and deferred revenues 12.3 $ 54,885 $ 66,651 In-place leases Deferred costs and other assets 12.0 $ 27,538 $ 38,453
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, 2019 is as follows: Above/Below-Market Leases-Lessor In-place Leases Total Net Intangible Amortization 2020 $ 4,264 $ (6,944 ) $ (2,680 ) 2021 4,417 (3,351 ) 1,066 2022 4,015 (2,612 ) 1,403 2023 3,509 (2,116 ) 1,393 2024 3,395 (1,615 ) 1,780 Thereafter 21,866 (10,900 ) 10,966 $ 41,466 $ (27,538 ) $ 13,928

Investment in Unconsolidated _2

Investment in Unconsolidated Entities, at Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	For the Year Ended December 31, 2019 2018 2017 Total revenues $ 262,463 $ 262,410 $ 234,314 Operating expenses 110,399 106,402 93,502 Depreciation and amortization 101,953 97,810 89,397 Operating income 50,111 58,198 51,415 (Loss) gain on sale of interests in property and unconsolidated entities, net (1,288 ) 583 1,585 Interest expense, taxes, and other, net (61,523 ) (52,477 ) (45,906 ) Net (loss) income from the Company's unconsolidated real estate entities $ (12,700 ) $ 6,304 $ 7,094 Our share of (loss) income from the Company's unconsolidated real estate entities $ (1,499 ) $ 541 $ 1,395
Schedule of Combined Balance Sheets for Unconsolidated Venture Properties	The following table presents the combined balance sheets for the unconsolidated joint venture properties for the periods indicated above during which the Company accounted for these investments as unconsolidated entities as of December 31, 2019 and 2018 : December 31, 2019 2018 Assets: Investment properties at cost, net $ 1,905,336 $ 1,964,699 Construction in progress 38,280 21,019 Cash and cash equivalents 43,137 43,169 Tenant receivables and accrued revenue, net 31,238 31,661 Deferred costs and other assets (1) 301,133 147,481 Total assets $ 2,319,124 $ 2,208,029 Liabilities and Members’ Equity: Mortgage notes payable $ 1,282,307 $ 1,292,801 Accounts payable, accrued expenses, intangibles, and deferred revenues (2) 297,163 137,073 Total liabilities 1,579,470 1,429,874 Members’ equity 739,654 778,155 Total liabilities and members’ equity $ 2,319,124 $ 2,208,029 Our share of members’ equity, net $ 384,332 $ 396,229 Our share of members’ equity, net $ 384,332 $ 396,229 Advances and excess investment 17,339 21,557 Net investment in and advances to unconsolidated entities, at equity (3) $ 401,671 $ 417,786 (1) Includes value of acquired in-place leases and acquired above-market leases with a net book value of $79,457 and $91,609 as of December 31, 2019 and 2018 , respectively. Additionally, includes ROU assets of $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2019 . (2) Includes the net book value of below market leases of $45,757 and $57,392 as of December 31, 2019 and 2018 , respectively. Additionally, includes lease liabilities of $172,991 related to ground leases for which our joint ventures are the lessees as of December 31, 2019 . (3) Includes $417,092 and $433,207 of investment in and advances to unconsolidated entities, at equity as of December 31, 2019 and 2018 , respectively, and $15,421 and $15,421 of cash distributions and losses in unconsolidated entities, at equity as of December 31, 2019 and 2018 , respectively.

Indebtedness (Tables)

Indebtedness (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Total mortgage indebtedness at December 31, 2019 and 2018 was as follows: 2019 2018 Face amount of mortgage loans $ 1,117,242 $ 980,276 Fair value adjustments, net 3,463 5,764 Debt issuance cost, net (5,097 ) (2,771 ) Carrying value of mortgage loans $ 1,115,608 $ 983,269
Roll Forward of Mortgage Indebtedness	A roll forward of mortgage indebtedness from December 31, 2018 to December 31, 2019 is summarized as follows: Balance at December 31, 2018 $ 983,269 Debt amortization payments (18,115 ) Repayment of debt (47,175 ) Debt borrowings, net of issuance costs 293,416 Debt canceled upon lender foreclosures, net of debt issuance costs (94,633 ) Amortization of fair value and other adjustments (2,301 ) Amortization of debt issuance costs 1,147 Balance at December 31, 2019 $ 1,115,608
Schedule of Debt	The following table identifies our total unsecured debt outstanding at December 31, 2019 and December 31, 2018 : December 31, December 31, Notes payable: Face amount - the Exchange Notes (1) $ 250,000 $ 250,000 Face amount - Senior Notes due 2024 (2) 720,900 750,000 Debt discount, net (7,864 ) (9,680 ) Debt issuance costs, net (5,470 ) (7,623 ) Total carrying value of notes payable $ 957,566 $ 982,697 Unsecured 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 (3,358 ) (4,491 ) Total carrying value of unsecured term loans $ 686,642 $ 685,509 Revolving credit facility: (3)(6) Face amount $ 207,000 $ 290,000 Debt issuance costs, net (2,855 ) (3,998 ) Total carrying value of revolving credit facility $ 204,145 $ 286,002 (1) The Exchange Notes were issued at a 0.028% discount, bear interest at 3.850% per annum and mature on April 1, 2020. (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 due to the credit downgrade. The Senior Notes due 2024 mature on August 15, 2024. (3) The unsecured revolving credit facility, or "Revolver" and unsecured term loan, or "Term Loan" are collectively known as the "Facility." (4) The Term Loan bears interest at one-month LIBOR plus 2.10% 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 4.86% per annum through June 30, 2021. At December 31, 2019 , the applicable interest rate on the unhedged portion of the Term Loan was one-month LIBOR plus 2.10% or 3.86% . (5) The December 2015 Term Loan bears interest at one-month LIBOR plus 2.35% 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 4.06% per annum through maturity. (6) The Revolver provides borrowings on a revolving basis up to $650.0 million at one-month LIBOR plus 1.80% 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, 2019 , we had an aggregate available borrowing capacity of $442.8 million under the Revolver, net of $0.2 million reserved for outstanding letters of credit. At December 31, 2019 , the applicable interest rate on the Revolver was one-month LIBOR plus 1.80% , or 3.56% . 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.
Schedule of Line of Credit Facilities	The following table presents the borrowings and paydowns on the Revolver during the years ended December 31, 2019 and December 31, 2018 : 2019 2018 Beginning Balance $ 290,000 $ 155,000 Borrowings 267,000 332,000 Paydowns (350,000 ) (197,000 ) Ending Balance $ 207,000 $ 290,000
Schedule of Maturities of Long-term Debt	Scheduled principal repayments on indebtedness (including extension options) as of December 31, 2019 are as follows: 2020 $ 346,176 2021 276,910 2022 690,649 2023 406,006 2024 984,553 Thereafter 390,133 Total principal maturities 3,094,427 Bond discount (7,864 ) Fair value adjustments, net 3,463 Debt issuance costs, net (18,341 ) Future accretion of other indebtedness (10,123 ) Total mortgages and corporate indebtedness $ 3,061,562
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, 2019 and 2018 are summarized as follows: 2019 2018 Book value of fixed- rate mortgages (1) $ 1,052,242 $ 915,276 Fair value of fixed-rate mortgages $ 1,062,205 $ 928,129 Weighted average discount rates assumed in calculation of fair value for fixed-rate mortgages 4.24 % 4.57 % Book value of fixed-rate corporate debt (1) $ 1,660,062 $ 1,590,000 Fair value of fixed-rate corporate debt $ 1,673,105 $ 1,485,672 Weighted average discount rates assumed in calculation of fair value for fixed-rate corporate debt 6.03 % 5.62 % (1) Excludes deferred financing fees and applicable debt discounts.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 : Derivatives designated as hedging instruments: Balance Sheet December 31, 2019 December 31, 2018 Interest rate products Asset Derivatives Deferred costs and other assets $ — $ 9,306 Interest rate products Liability Derivatives Accounts payable, accrued expenses, intangibles and deferred revenues $ 6,592 $ 1,913
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, 2019, 2018 and 2017 : Derivatives in Cash Flow Hedging Relationships Location of Gain or (Loss) Recognized in Income on Derivatives For the Year Ended December 31, 2019 2018 2017 Amount of Gain or (Loss) Recognized in OCI on Derivative $ (13,363 ) $ 1,054 $ 1,256 Amount of Gain or (Loss) Reclassified from AOCI into Income Interest expense $ (739 ) $ (2,338 ) $ 1,145 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, 2019, 2018 and 2017 : Effect of Cash Flow Hedges on Consolidated Statements of Operations For the year ended December 31, 2019 2018 2017 Total interest (expense) presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded $ (153,382 ) $ (141,987 ) $ (126,541 ) Amount of (gain) loss reclassified from accumulated other comprehensive (loss) income into interest expense $ (739 ) $ (2,338 ) $ 1,145
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, 2019 and 2018 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 3) Balance at December 31, 2019 Derivative instruments, net $ — $ (6,592 ) $ — $ (6,592 ) Quoted Prices in Active Markets for Identical Liabilities Significant Other Observable Inputs Significant Unobservable Inputs 3) Balance at December 31, 2018 Derivative instruments, net $ — $ 7,393 $ — $ 7,393

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Share Based Compensation Arrangement By Share Based Payment Award LTIP Units Earned and Aggregate Grant Date Fair Values Adjusted For Estimated Forfeitures	A summary of the Inducement LTIP Units and changes during the year ended December 31, 2019 is listed below: Activity for the Year Ended December 31, 2019 Inducement LTIP Units Weighted Outstanding unvested at beginning of year 12,832 $ 17.53 Units granted — $ — Units vested (12,832 ) $ 17.53 Units forfeited — $ — Outstanding unvested at end of year — $ —
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The total amount of compensation to be recognized over the performance period, and the assumptions used to value the 2016 Annual Long-Term Incentive Awards are provided below: 2016 Fair value per share of Allocated RSUs/Units $ 3.81 Total amount to be recognized over the performance period $ 2,516 Risk free rate 0.44 % Volatility 31.40 % Dividend yield 10.05 % The following table summarizes the assumptions used to value the PSUs under a Monte Carlo simulation model: 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards 2017 Annual Long-Term Incentive Awards Risk free rate 2.45% 2.39% 1.49% Volatility 26.53% 24.70% 20.52% Dividend yield 17.33% 16.39% 10.44% 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% Dividend yield 27.93% The following table summarizes the issuance of the 2019 Annual Long-Term Incentive Awards, 2018 Annual Long-Term Incentive Awards, and 2017 Annual Long-Term Incentive Awards, respectively: 2019 Annual Long-Term Incentive Awards 2018 Annual Long-Term Incentive Awards 2017 Annual Long-Term Incentive Awards Grant Date February 20, 2019 February 20, 2018 February 21, 2017 RSUs issued 572,163 587,000 358,198 Grant date fair value per unit $5.77 $6.10 $9.58 PSUs issued 572,163 587,000 358,198 Grant date fair value per unit $4.98 $4.88 $7.72
Schedule of Nonvested Performance-based Units Activity	A summary of the status of the WPG PSUs at December 31, 2019 and changes during the year are presented below: Activity for the Year Ended December 31, 2019 PSUs Weighted Outstanding unvested at beginning of year 883,601 $ 5.90 PSUs granted 1,072,163 $ 3.73 PSUs forfeited (198,561 ) $ 5.69 Outstanding unvested at end of year 1,757,203 $ 4.60
Schedule of Nonvested Restricted Stock Units Activity	A summary of the status of the WPG RSUs at December 31, 2019 and changes during the year are presented below: Activity for the Year Ended December 31, 2019 RSUs Weighted Outstanding unvested at beginning of year 1,569,313 $ 8.07 RSUs granted 1,406,455 $ 4.69 RSUs vested (948,072 ) $ 8.71 RSUs forfeited (145,282 ) $ 6.84 Outstanding unvested at end of year 1,882,414 $ 5.32
Share-based Compensation, Stock Options, Activity	A summary of the status of the Company's option plans at December 31, 2019 and changes during the year are listed below: Activity for the Year Ended December 31, 2019 Stock Options Weighted Outstanding at beginning of year 679,741 $ 2.08 Options granted — $ — Options exercised (391 ) $ 14.46 Options forfeited/expired (78,061 ) $ 2.64 Outstanding at end of year 601,289 $ 2.02
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, 2019 : Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $5.76 13,583 0.2 $5.76 13,583 0.2 $5.76 $11.97 30,415 1.3 $11.97 30,415 1.3 $11.97 $12.67 48,373 2.4 $12.67 48,373 2.4 $12.67 $16.56 94,420 3.4 $16.56 94,420 3.4 $16.56 $13.10 61,498 4.3 $13.10 61,498 4.3 $13.10 $14.28 198,000 5.4 $14.28 198,000 5.4 $14.28 $9.95 155,000 6.4 $9.95 155,000 6.4 $9.95 601,289 4.6 $12.96 601,289 4.6 $12.96
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value	The following table summarizes the aggregate intrinsic value of options that are: outstanding, exercisable and exercised. It also depicts the fair value of options that have vested. For the Year Ended December 31, 2019 Aggregate intrinsic value of options outstanding $ — Aggregate intrinsic value of options exercisable $ — Aggregate intrinsic value of options exercised $ 1 Aggregate fair value of options vested $ 32

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Lessee, Operating Lease, Liability, Maturity	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, 2019 are as follows: 2020 $ 2,049 2021 2,069 2022 2,099 2023 1,427 2024 999 Thereafter 20,378 Total lease payments 29,021 Less: Discount 16,107 Present value of lease liabilities $ 12,914

(Loss) Earnings Per Common Sh_2

(Loss) Earnings Per Common Share/Unit (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 2018 2017 (Loss) Earnings Per Common Share, Basic: Net (loss) income attributable to common shareholders - basic $ (9,758 ) $ 79,572 $ 183,031 Weighted average shares outstanding - basic 188,445,434 187,696,339 186,829,385 (Loss) earnings per common share, basic $ (0.05 ) $ 0.42 $ 0.98 (Loss) Earnings Per Common Share, Diluted: Net (loss) income attributable to common shareholders - basic $ (9,758 ) $ 79,572 $ 183,031 Net (loss) income attributable to common unitholders (1,799 ) 14,735 34,222 Net (loss) income attributable to common shareholders - diluted $ (11,557 ) $ 94,307 $ 217,253 Weighted average common shares outstanding - basic 188,445,434 187,696,339 186,829,385 Weighted average operating partnership units outstanding 34,730,014 34,703,770 34,808,890 Weighted average additional dilutive securities outstanding — 603,674 337,508 Weighted average common shares outstanding - diluted 223,175,448 223,003,783 221,975,783 (Loss) earnings per common share, diluted $ (0.05 ) $ 0.42 $ 0.98 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, 2019 2018 2017 (Loss) Earnings Per Common Unit, Basic and Diluted: Net (loss) income attributable to common unitholders - basic and diluted $ (11,557 ) $ 94,307 $ 217,253 Weighted average common units outstanding - basic 223,175,448 222,400,109 221,638,275 Weighted average additional dilutive securities outstanding — 603,674 337,508 Weighted average shares outstanding - diluted 223,175,448 223,003,783 221,975,783 (Loss) earnings per common unit, basic and diluted $ (0.05 ) $ 0.42 $ 0.98

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	Quarterly 2019 and 2018 data is summarized in the table below. Quarterly amounts may not sum to annual amounts due to rounding. First Second Third Fourth 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 $ (0.03 ) $ (0.09 ) $ (0.02 ) $ 0.09 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 $ (0.03 ) $ (0.09 ) $ (0.02 ) $ 0.09 2018 Total revenue $ 176,994 $ 178,117 $ 179,419 $ 182,949 Net income $ 20,185 $ 15,519 $ 4,115 $ 68,836 Washington Prime Group Inc.: Net income attributable to the Company $ 17,524 $ 13,594 $ 3,971 $ 58,515 Net income attributable to common shareholders $ 14,016 $ 10,086 $ 463 $ 55,007 Earnings per common share—basic and diluted $ 0.07 $ 0.05 $ 0.00 $ 0.29 Washington Prime Group, L.P.: Net income attributable to unitholders $ 20,185 $ 15,519 $ 4,115 $ 68,836 Net income attributable to common unitholders $ 16,617 $ 11,951 $ 547 $ 65,192 Earnings per common unit—basic and diluted $ 0.07 $ 0.05 $ 0.00 $ 0.29

Organization (Details)

Organization (Details) ft² in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)ft²shopping_center	Dec. 31, 2018USD ($)
Severance and Restructuring
Real Estate Properties [Line Items]
Severance costs	$ 1.9
Non-cash Items
Real Estate Properties [Line Items]
Severance costs	$ 0.1
Employee Severance
Real Estate Properties [Line Items]
Restructuring and related cost, expected cost		$ 2
Stock Compensation Benefits
Real Estate Properties [Line Items]
Restructuring and related cost, expected cost		$ 0.5
Shopping Centers
Real Estate Properties [Line Items]
Number of real estate properties | shopping_center	104
Area of real estate property | ft²	56

Basis of Presentation and Pri_2

Basis of Presentation and Principles of Consolidation (Details)	12 Months Ended
	Dec. 31, 2019variable_interest_entitypropertyshopping_center	Dec. 31, 2018	Dec. 31, 2017
Real Estate Properties [Line Items]
Minimum threshold ownership interest for properties included in financial statement	100.00%
Number of VIEs | variable_interest_entity	1
Washington Prime Group, L.P.
Real Estate Properties [Line Items]
Noncontrolling interest, ownership percentage by parent	84.50%	84.40%
Washington Prime Group, L.P. | Weighted Average
Real Estate Properties [Line Items]
Noncontrolling interest, ownership percentage by parent	84.40%	84.40%	84.30%
Wholly Owned Properties
Real Estate Properties [Line Items]
Number of real estate properties	87
Partially Owned Properties
Real Estate Properties [Line Items]
Number of real estate properties	4
Corporate Joint Venture
Real Estate Properties [Line Items]
Number of real estate properties	13
Shopping Centers
Real Estate Properties [Line Items]
Number of real estate properties | shopping_center	104

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Summary of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Cash and cash equivalents	$ 41,421	$ 42,542	$ 52,019
Restricted cash	34,054	18,542	18,182
Total cash, cash equivalents and restricted cash	$ 75,475	$ 61,084	$ 70,201	$ 88,513

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Narrative 1 (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)segmentproperty	Dec. 31, 2018USD ($)property	Dec. 31, 2017USD ($)
Real Estate [Line Items]
Interest costs capitalized | $	$ 3,961	$ 2,234	$ 1,521
Number of reportable segments | segment	1
Unconsolidated Properties
Real Estate [Line Items]
Number of real estate properties | property	13	13
Minimum | Building and Building Improvements
Real Estate [Line Items]
Property, plant and equipment, useful life	5 years
Minimum | Equipment and Fixture
Real Estate [Line Items]
Property, plant and equipment, useful life	3 years
Maximum | Building and Building Improvements
Real Estate [Line Items]
Property, plant and equipment, useful life	40 years
Maximum | Equipment and Fixture
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) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2019USD ($)lease	Oct. 10, 2019property	Jan. 01, 2019USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Present value of lease liabilities			$ 12,914		$ 14,400
Operating lease, right-of-use asset					$ 14,400
Number of ground leases			4	4
Number of properties subject to office leases | lease			2
Number of garage leases | lease			1
Legal Expenses
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred leasing cost	$ 17,700
Leasing Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred leasing cost		$ 16,900
Reclassifications | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Termination income reclassification	3,500	3,500
Provision of credit losses reclassification	$ 5,800	$ 5,100

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Deferred Costs and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Deferred leasing costs and corporate improvements, net	$ 53,729	$ 74,260
In-place lease intangibles, net	27,538	38,453
Acquired above market lease intangibles, net	13,419	18,827
Mortgage and other escrow deposits	34,054	18,542
Seller financing receivable	55,000
Prepaids, notes receivable and other assets, net	21,294	19,053
Deferred costs and other assets	205,034	$ 169,135
Bridge financing	$ 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, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Deferred leasing costs	$ 121,363	$ 142,903
Corporate improvements	6,099	6,072
Accumulated amortization	(73,733)	(74,715)
Deferred lease costs and corporate improvements, net	53,729	74,260
Amortization of deferred leasing fees	$ 24,500	$ 27,900	$ 25,900

Summary of Significant Accoun_9

Summary of Significant Accounting Policies - Rental Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Operating lease payments, fixed	$ 539,458	$ 592,481	$ 632,055
Operating lease payments, variable	90,922	91,784	96,096
Amortization of straight-line rent, inducements, and rent abatements	4,409	3,022	1,809
Net amortization/accretion of above and below-market leases	6,382	8,971	7,323
Change in estimate of collectibility of rental income	(7,538)	(5,826)	(5,068)
Total rental income	$ 633,633	$ 690,432	$ 732,215

Summary of Significant Accou_10

Summary of Significant Accounting Policies - Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Activity Relating to Collectibility of Operating Lease Payments [Roll Forward]
Balance, beginning of year	$ 10,131	$ 7,867	$ 8,578
Change in estimate of collectibility of rental income	7,538	5,826	5,068
Accounts deconsolidated upon joint venture formation (see Note 5)	0	0	(1,271)
Accounts written off, net of recoveries, and other	(4,758)	(3,562)	(4,508)
Balance, end of year	$ 12,911	$ 10,131	$ 7,867

Summary of Significant Accou_11

Summary of Significant Accounting Policies - Lessor, Operating Lease, Payments to be Received, Maturity (Details) $ in Thousands	Dec. 31, 2019USD ($)
Accounting Policies [Abstract]
2020	$ 467,066
2021	392,633
2022	328,972
2023	267,483
2024	205,129
Thereafter	633,706
Payments to be received	$ 2,294,989

Summary of Significant Accou_12

Summary of Significant Accounting Policies - Other Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Total other income	$ 27,851	$ 27,047	$ 20,839
Ancillary
Disaggregation of Revenue [Line Items]
Total other income	11,016	10,275	9,848
Fee related
Disaggregation of Revenue [Line Items]
Total other income	11,682	9,527	7,906
Miscellaneous
Disaggregation of Revenue [Line Items]
Total other income	$ 5,153	$ 7,245	$ 3,085

Summary of Significant Accou_13

Summary of Significant Accounting Policies - Income and Other Taxes Narrative (Details) - Taxable Real Estate Investment Trust Subsidiaries - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Deferred tax assets, operating loss carryforwards	$ 410,000	$ 110,000
Operating loss carryforwards, valuation allowance	410,000	110,000
Deferred tax assets, net of valuation allowance	0
Income and Other Taxes
Income Tax Contingency [Line Items]
Federal income tax expense (benefit)	$ (79,000)	$ 525,000	$ (87,000)

Summary of Significant Accou_14

Summary of Significant Accounting Policies - Distributions Paid Per Common and Preferred Share On a Tax Basis (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common Stock
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 0.5001	$ 1	$ 0.4306
Capital gain (in dollars per share)	0.4999	0	0.5694
Distributions, per share (in dollars per share)	$ 1	$ 1	$ 1
Distributions, per share, ordinary income, percentage	50.01%	100.00%	43.06%
Capital gain, percentage	49.99%	0.00%	56.94%
Distributions, per share, percentage	100.00%	100.00%	100.00%
Series H Preferred Stock
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 0.9378	$ 1.8752	$ 1.0093
Capital gain (in dollars per share)	0.9374	0	1.3347
Distributions, per share (in dollars per share)	$ 1.8752	$ 1.8752	$ 2.3440
Distributions, per share, ordinary income, percentage	50.01%	100.00%	43.06%
Capital gain, percentage	49.99%	0.00%	56.94%
Distributions, per share, percentage	100.00%	100.00%	100.00%
Series I Preferred Stock
Dividends Payable [Line Items]
Distributions, per share, ordinary income (in dollars per share)	$ 0.8596	$ 1.7188	$ 0.9251
Capital gain (in dollars per share)	0.8592	0	1.2234
Distributions, per share (in dollars per share)	$ 1.7188	$ 1.7188	$ 2.1485
Distributions, per share, ordinary income, percentage	50.01%	100.00%	43.06%
Capital gain, percentage	49.99%	0.00%	56.94%
Distributions, per share, percentage	100.00%	100.00%	100.00%

Summary of Significant Accou_15

Summary of Significant Accounting Policies - Carrying Amount of WPG Incs.'s Noncontrolling Interests (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Limited partners' interests in WPG L.P.	$ 109,193	$ 147,493
Noncontrolling interests in properties	1,033	1,068
Total noncontrolling interests	$ 110,226	$ 148,561

Summary of Significant Accou_16

Summary of Significant Accounting Policies - Redeemable Noncontrolling Interests for WPG Inc. (Details) - Series I-1 Preferred Units - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
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, 2019	Dec. 31, 2018
Business Combinations [Abstract]
Land	$ 823,887	$ 836,214
Buildings and improvements	4,974,330	4,980,939
Total land, buildings and improvements	5,798,217	5,817,153
Furniture, fixtures and equipment	104,189	97,552
Investment properties at cost	5,902,406	5,914,705
Less: accumulated depreciation	2,397,736	2,283,764
Investment properties at cost, net	3,504,670	3,630,941
Construction in progress included above	$ 115,280	$ 35,068

Investment in Real Estate - 201

Investment in Real Estate - 2018 Acquisitions (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
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
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

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Net cash paid for acquisitions		$ 0	$ 80,108	$ 0
Glimcher Realty Trust [Member]
Business Acquisition [Line Items]
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

Investment in Real Estate - 2_2

Investment in Real Estate - 2019 Dispositions (Details) $ in Thousands	Dec. 30, 2019USD ($)outparcel	Dec. 19, 2019USD ($)	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, 2019USD ($)outparcel	Dec. 31, 2018USD ($)outparcel	Dec. 31, 2017USD ($)	Dec. 31, 2020USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Real estate deal amount remaining to close																	$ 4,600
Gain on disposition of interests in properties, net																	38,373	$ 24,602	$ 124,771
Undeveloped Land Parcels and Developed Outparcels
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales Proceeds																	8,200
Aggregate sales price																	8,800
Four Corners | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Real estate deal amount remaining to close																				$ 29,000
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
Restaurant Outparcels
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales Proceeds	$ 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	$ 40,703	$ 32,339
Parcels Sold | outparcel	5		2	2	1	1	1	3	1	1	8	1	2	2	5	10	25	20
Purchase Price	$ 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	$ 41,094	$ 32,715

Investment in Real Estate - 2_3

Investment in Real Estate - 2018 Dispositions (Details) $ in Thousands	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 ($)outparcel	Dec. 31, 2019USD ($)outparcel	Dec. 31, 2018USD ($)outparcel	Dec. 31, 2017USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposition of interests in properties, net																$ 38,373	$ 24,602	$ 124,771
Restaurant Outparcels
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Parcels sold | outparcel	5	2	2	1	1	1	3	1	1	8	1	2	2	5	10	25	20
Purchase Price	$ 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	$ 41,094	$ 32,715
Sales Proceeds	$ 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	$ 40,703	$ 32,339

Investment in Real Estate - 2_4

Investment in Real Estate - 2017 Dispositions (Details) $ in Millions	Jun. 13, 2017	Dec. 31, 2017USD ($)property	Nov. 03, 2017USD ($)	Jun. 07, 2017USD ($)	May 16, 2017USD ($)ft²	May 12, 2017property	Feb. 21, 2017USD ($)	Jan. 10, 2017USD ($)
Colonial Park Mall
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received			$ 15
Malibu Lumber Yard
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of interest in property sold	49.00%
Morgantown Commons
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received				$ 6.7
Vacant Anchor Parcel in Indian Mound Mall
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received					$ 0.8
Area of real estate property | ft²					80,000
Gulf View Square and River Oaks Center
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received							$ 42
Virginia Center Commons
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received								$ 9
Morgantown Commons, Vacant Anchor Parcel at Indian Mound Mall, Gulf View Square, River Oaks Center, and Virginia Community Center Commons
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of assets		$ 124.8
O'Connor Joint Venture II
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties | property		7				6
Gain (loss) on disposition of assets		$ 126.1

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Above-market leases - Company is lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	$ 46,745	$ 48,373
Below-market leases - Company is lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	108,345	117,395
In-place leases
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Asset/Liability	103,043	109,379
Amortization of intangible assets	11,409	14,780	$ 18,457
Above/Below-Market Leases-Lessor
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization as a net increase to minimum rents in the amounts	$ 6,382	$ 8,971	$ 7,323

Investment in Real Estate - I_2

Investment in Real Estate - Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
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 1 month 6 days
Intangible Asset/Liability	$ 13,419	$ 18,827
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)	12 years 3 months 18 days
Intangible Asset/Liability	$ 54,885	66,651
In-place leases | Deferred costs and other assets
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization (in years)	12 years
Intangible Asset/Liability	$ 27,538	$ 38,453

Investment in Real Estate - Net

Investment in Real Estate - Net Amortization of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Total net intangible amortization, 2020	$ (2,680)
Total net intangible amortization, 2021	1,066
Total net intangible amortization, 2022	1,403
Total net intangible amortization, 2023	1,393
Total net intangible amortization, 2024	1,780
Total net intangible amortization, thereafter	10,966
Above/Below-Market Leases-Lessor	45,757	$ 57,392
In-place Leases	4,409	$ 3,022	$ 1,809
Total Net Intangible Amortization	13,928
Above/Below-Market Leases-Lessor
Finite-Lived Intangible Assets [Line Items]
Above/below-market leases, 2020	4,264
Above/below-market leases, 2021	4,417
Above/below-market leases, 2022	4,015
Above/below-market leases, 2023	3,509
Above/below-market leases, 2024	3,395
Above/below-market leases, thereafter	21,866
Above/Below-Market Leases-Lessor	41,466
In-place leases
Finite-Lived Intangible Assets [Line Items]
In-place leases, 2020	(6,944)
In-place leases, 2021	(3,351)
In-place leases, 2022	(2,612)
In-place leases, 2023	(2,116)
In-place leases, 2024	(1,615)
In-place leases, thereafter	(10,900)
In-place Leases	$ (27,538)

Investment in Real Estate - Imp

Investment in Real Estate - Impairment (Details) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2019USD ($)property	Sep. 30, 2019USD ($)	Dec. 31, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2019USD ($)property	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Nov. 03, 2017USD ($)	Jun. 07, 2017USD ($)
Business Acquisition [Line Items]
Impairment of real estate					$ 35,256	$ 0	$ 66,925
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
Chautauqua Mall
Business Acquisition [Line Items]
Number of real estate properties | property	3				3
Impairment of real estate		$ 28,900
Rushmore Mall
Business Acquisition [Line Items]
Real estate property fair value			$ 37,500				37,500
Real estate property carrying value			75,000				75,000
Impairment of real estate			$ 37,500
Colonial Park Mall
Business Acquisition [Line Items]
Impairment of real estate							$ 20,900
Consideration received								$ 15,000
Morgantown Commons
Business Acquisition [Line Items]
Impairment of real estate				$ 8,500
Consideration received									$ 6,700
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Charlottesville Fashion Square
Business Acquisition [Line Items]
Measurement input	0.185				0.185
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Chautauqua Mall
Business Acquisition [Line Items]
Measurement input		0.185
Measurement Input, Cap Rate | Valuation Technique, Discounted Cash Flow | Charlottesville Fashion Square
Business Acquisition [Line Items]
Measurement input	0.155				0.155
Measurement Input, Cap Rate | Valuation Technique, Discounted Cash Flow | Chautauqua Mall
Business Acquisition [Line Items]
Measurement input		0.155

Investment in Unconsolidated _3

Investment in Unconsolidated Entities, at Equity - Narrative (Details) ft² in Millions, $ in Millions	May 06, 2020USD ($)extension	Dec. 31, 2019USD ($)ft²property	Dec. 31, 2017USD ($)property	Dec. 31, 2018USD ($)	May 12, 2017property
Schedule of Equity Method Investments [Line Items]
Advances and excess investment		$ 0.5		$ 5.3
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		6
Adjusted purchase price before closing adjustments and debt assumption			$ 598.6
Proceeds from real estate and joint venture			138.9
Gain (loss) on disposition of assets			126.1
Formation of joint venture, transaction costs			$ 6.4
O'Connor Joint Venture II | O'Connor Mall Partners LP
Schedule of Equity Method Investments [Line Items]
Ownership percentage			49.00%
The Seminole Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage		45.00%
Effective financial interest		0.00%
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
Forecast | O'Connor Mall Partners LP | O'Connor Joint Venture
Schedule of Equity Method Investments [Line Items]
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	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Total revenues	$ 262,463	$ 262,410	$ 234,314
Operating expenses	110,399	106,402	93,502
Depreciation and amortization	101,953	97,810	89,397
Operating income	50,111	58,198	51,415
(Loss) gain on sale of interests in property and unconsolidated entities, net	(1,288)	583	1,585
Interest expense, taxes, and other, net	(61,523)	(52,477)	(45,906)
Net (loss) income from the Company's unconsolidated real estate entities	(12,700)	6,304	7,094
Our share of (loss) income from the Company's unconsolidated real estate entities	$ (1,499)	$ 541	$ 1,395

Investment in Unconsolidated _5

Investment in Unconsolidated Entities, at Equity - Combined Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Liabilities and Members’ Equity:
Our share of members’ equity, net	$ 417,092		$ 433,207
Advances and excess investment	500		5,300
Acquired in place and above market leases	79,457		91,609
Operating lease, right-of-use asset		$ 14,400
Below market lease, net	45,757		57,392
Operating lease, liability	12,914	$ 14,400
Cash distributions and losses in unconsolidated entities, at equity	15,421		15,421
O'Connor Joint Venture I, O'Connor Joint Venture II, the Seminole Joint Venture, and Other Interests
Assets:
Investment properties at cost, net	1,905,336		1,964,699
Construction in progress	38,280		21,019
Cash and cash equivalents	43,137		43,169
Tenant receivables and accrued revenue, net	31,238		31,661
Deferred costs and other assets	301,133		147,481
Total assets	2,319,124		2,208,029
Liabilities and Members’ Equity:
Mortgage notes payable	1,282,307		1,292,801
Accounts payable, accrued expenses, intangibles, and deferred revenues	297,163		137,073
Total liabilities	1,579,470		1,429,874
Members’ equity	739,654		778,155
Total liabilities and members’ equity	2,319,124		2,208,029
Our share of members’ equity, net	384,332		396,229
Advances and excess investment	17,339		21,557
Net investment in and advances to unconsolidated entities, at equity	401,671		$ 417,786
Operating lease, right-of-use asset	172,991
Operating lease, liability	$ 172,991

Indebtedness - Mortgage Debt (D

Indebtedness - Mortgage Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Face amount of mortgage loans	$ 3,094,427
Fair value adjustments, net	(7,864)
Debt issuance cost, net	$ (18,341)
Weighted average interest rate	4.61%	5.00%
Mortgages
Debt Instrument [Line Items]
Face amount of mortgage loans	$ 1,117,242	$ 980,276
Fair value adjustments, net	3,463	5,764
Debt issuance cost, net	(5,097)	(2,771)
Carrying value of mortgage loans	$ 1,115,608	$ 983,269
Debt instrument term	4 years 6 months	3 years 6 months

Indebtedness - Roll Forward of

Indebtedness - Roll Forward of Mortgage Indebtedness (Details) - Mortgages $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Mortgage Debt [Roll Forward]
Balance at December 31, 2018	$ 983,269
Debt amortization payments	(18,115)
Repayment of debt	(47,175)
Debt borrowings, net of issuance costs	293,416
Debt canceled upon lender foreclosures, net of debt issuance costs	(94,633)
Amortization of fair value and other adjustments	(2,301)
Amortization of debt issuance costs	1,147
Balance at December 31, 2019	$ 1,115,608

Indebtedness - Mortgage Narrati

Indebtedness - Mortgage Narrative (Details)

Sep. 16, 2019USD ($)

Apr. 08, 2019USD ($)extension_option

Apr. 01, 2019USD ($)extension_option

Oct. 02, 2018USD ($)

Sep. 27, 2018USD ($)extension

Jun. 08, 2018USD ($)extension_option

Jan. 19, 2018USD ($)

Dec. 31, 2019

Apr. 16, 2019USD ($)

Nov. 19, 2018USD ($)

Oct. 23, 2018USD ($)

May 29, 2018USD ($)

Apr. 11, 2018USD ($)

West Ridge Mall

Debt Instrument [Line Items]

Default amount

$ 49,500,000

Towne West Square

Debt Instrument [Line Items]

Default amount

$ 45,200,000

Weberstown Mall

Debt Instrument [Line Items]

Debt face amount

$ 65,000,000

$ 65,000,000

Debt instrument number of extension options | extension_option

3

3

Debt instrument period of extension option

1 year

1 year

Town Center

Debt Instrument [Line Items]

Stated interest rate

4.92%

Debt face amount

$ 52,000,000

Debt instrument number of extension options | extension_option

2

Debt instrument term

1 year

Basis spread rate

2.27%

Rushmore Mall

Debt Instrument [Line Items]

Default amount

$ 94,000,000

$ 94,000,000

Affiliate

Debt Instrument [Line Items]

Repayments of debt

$ 47,200,000

Stated interest rate

7.50%

Affiliate | Fixed Rate Cross Collateralized Pool

Debt Instrument [Line Items]

Stated interest rate

3.67%

Debt face amount

$ 117,000,000

Affiliate | Waterford Lakes Town Center

Debt Instrument [Line Items]

Stated interest rate

4.86%

Debt face amount

$ 180,000,000

Affiliate | Whitehall Mall

Debt Instrument [Line Items]

Repayments of debt

$ 8,300,000

Affiliate | Southgate Mall

Debt Instrument [Line Items]

Stated interest rate

4.48%

Debt face amount

$ 35,000,000

Debt instrument number of extension options | extension

2

Debt instrument period of extension option

1 year

Debt instrument term

3 years

Affiliate | The Outlet Collection Seattle

Debt Instrument [Line Items]

Repayments of debt

$ 86,500,000

Indebtedness - Unsecured Debt O

Indebtedness - Unsecured Debt Outstanding (Details)	12 Months Ended
	Dec. 31, 2019USD ($)extension	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Face amount	$ 3,094,427,000
Debt discount, net	(7,864,000)
Debt issuance cost, net	$ (18,341,000)
Interest rate effective percentage	8.56%
After August 14, 2019
Debt Instrument [Line Items]
Stated interest rate	6.45%
Senior Notes due 2024
Debt Instrument [Line Items]
Basis spread rate	0.50%
Term Loan
Debt Instrument [Line Items]
Basis spread rate	0.55%
December 2015 Term Loan
Debt Instrument [Line Items]
Basis spread rate	0.55%
Notes payable
Debt Instrument [Line Items]
Debt discount, net	$ (7,864,000)	$ (9,680,000)
Debt issuance cost, net	(5,470,000)	(7,623,000)
Carrying value of mortgage loans	957,566,000	982,697,000
Notes payable | Exchange Notes
Debt Instrument [Line Items]
Face amount	$ 250,000,000	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	750,000,000
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	$ (3,358,000)	(4,491,000)
Carrying value of mortgage loans	686,642,000	685,509,000
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	4.86%
Interest rate effective percentage	3.86%
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	4.06%
Revolving credit facility
Debt Instrument [Line Items]
Face amount	$ 207,000,000	290,000,000
Debt issuance cost, net	(2,855,000)	(3,998,000)
Carrying value of mortgage loans	204,145,000	$ 286,002,000
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	$ 442,800,000
Interest rate effective percentage	3.56%
Letter of Credit
Debt Instrument [Line Items]
Remaining borrowing capacity	$ 200,000
LIBOR | Unsecured term loans | Term Loan
Debt Instrument [Line Items]
Basis spread rate	2.10%
LIBOR | Unsecured term loans | December 2015 Term Loan
Debt Instrument [Line Items]
Basis spread rate	2.35%
LIBOR | Revolving credit facility
Debt Instrument [Line Items]
Basis spread rate	1.80%

Indebtedness - Unsecured Debt N

Indebtedness - Unsecured Debt Narrative (Details) - USD ($)	Jan. 22, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Gain on extinguishment of debt, net		$ 63,660,000	$ 51,395,000	$ 90,579,000
Term Loan
Debt Instrument [Line Items]
Basis spread rate		0.55%
December 2015 Term Loan
Debt Instrument [Line Items]
Basis spread rate		0.55%
Senior Notes due 2024
Debt Instrument [Line Items]
Basis spread rate		0.50%
Repayments of debt		$ 29,100,000
Gain on extinguishment of debt, net		1,200,000
Washington Prime Group, L.P.
Debt Instrument [Line Items]
Repayments of debt	$ 270,000,000
Gain on extinguishment of debt, net		63,660,000	$ 51,395,000	$ 90,579,000
Washington Prime Group, L.P. | Amended Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	1,000,000,000
Potential increase	1,500,000,000
Washington Prime Group, L.P. | Unsecured term loans | Amended Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 350,000,000
Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 650,000,000

Indebtedness - Borrowing and Pa

Indebtedness - Borrowing and Paydowns on Revolver (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt [Roll Forward]
Paydowns	$ (444,639)	$ (588,182)	$ (1,486,781)
Ending Balance	3,094,427
Revolving credit facility
Debt [Roll Forward]
Beginning Balance	290,000
Ending Balance	207,000	290,000
Revolving credit facility | Facility
Debt [Roll Forward]
Beginning Balance	290,000	155,000
Borrowings	267,000	332,000
Paydowns	(350,000)	(197,000)
Ending Balance	$ 207,000	$ 290,000	$ 155,000

Indebtedness - Other Indebtedne

Indebtedness - Other Indebtedness (Details) $ in Millions	Oct. 10, 2019USD ($)property	Dec. 31, 2019USD ($)lease
Debt Instrument [Line Items]
Number of ground leases	4	4
Sale leaseback related fees	$ 98.9
Ground lease term	99 years
Ground lease, fixed payments, annualized rate	7.40%
Ground lease repurchase fee interest	$ 109.3
Year for option to repurchase	30 years
Proceeds from sale of property	$ 42.3
Financial liabilities fair value disclosure		$ 1.6
Financial liability net		97.6
Accretion expense		$ 0.3
Interest rate effective percentage		8.56%
Interest expense		$ 1.9
Bridge Loan
Debt Instrument [Line Items]
Debt face amount	$ 55
Debt instrument term	5 years
Stated interest rate	4.00%

Indebtedness - Covenants (Detai

Indebtedness - Covenants (Details) $ in Thousands

Sep. 16, 2019USD ($)

Oct. 17, 2017USD ($)

Apr. 25, 2017USD ($)

Dec. 31, 2019USD ($)propertypoolloanquarter

Nov. 05, 2019USD ($)

Dec. 31, 2018USD ($)

Nov. 19, 2018USD ($)

Oct. 23, 2018USD ($)

May 29, 2018USD ($)

Apr. 11, 2018USD ($)

Mar. 30, 2017USD ($)

Jun. 30, 2016USD ($)

Jun. 06, 2016USD ($)

Mortgage Loan Secured by Charlottesville Fashion Square

Debt Instrument [Line Items]

Default amount

$ 45,100

Mortgage Loan Secured by West Ridge Mall

Debt Instrument [Line Items]

Default amount

$ 49,500

Mortgage Loan Secured by Rushmore Mall

Debt Instrument [Line Items]

Default amount

$ 94,000

$ 94,000

Mortgage Loan Secured by Towne West Square

Debt Instrument [Line Items]

Default amount

$ 45,200

Mortgage Loan Secured by Mesa Mall

Debt Instrument [Line Items]

Repayments of debt

$ 63,000

Consolidated Subsidiary of the Company | Mortgage Loan Secured by Valle Vista Mall

Debt Instrument [Line Items]

Default amount

$ 40,000

Consolidated Subsidiary of the Company | Mortgage Loan Secured by Southern Hills Mall

Debt Instrument [Line Items]

Default amount

$ 99,700

Consolidated Subsidiary of the Company | Mortgage Loan Secured by Mesa Mall

Debt Instrument [Line Items]

Default amount

$ 87,300

Affiliate

Debt Instrument [Line Items]

Repayments of debt

$ 47,200

Affiliate | Mortgage Loan Secured by Southern Hills Mall

Debt Instrument [Line Items]

Repayments of debt

$ 55,000

Mortgages

Debt Instrument [Line Items]

Mortgage notes payable

$ 1,115,608

$ 983,269

Repayments of debt

$ 47,175

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 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt, net	$ 63,660	$ 51,395	$ 90,579
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
Secured by Valle Vista, Southern Hills and Mesa Mall
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt, net			90,600
Debt forgiveness			$ 108,900

Indebtedness - Principal Repaym

Indebtedness - Principal Repayments on Indebtedness (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
2020	$ 346,176
2021	276,910
2022	690,649
2023	406,006
2024	984,553
Thereafter	390,133
Total principal maturities	3,094,427
Bond discount	(7,864)
Fair value adjustments, net	3,463
Debt issuance cost, net	(18,341)
Future accretion of other indebtedness	(10,123)
Interest paid	149,775	$ 141,641	$ 107,609
Mortgages and Unsecured Debt
Debt Instrument [Line Items]
Carrying value of mortgage loans	$ 3,061,562

Indebtedness - Fair Value of De

Indebtedness - Fair Value of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fixed Rate Mortgages
Debt Instrument [Line Items]
Book value of fixed- rate	$ 1,052,242	$ 915,276
Fair value of fixed-rate	1,062,205	928,129
Fixed Rate Corporate Debt
Debt Instrument [Line Items]
Book value of fixed- rate	1,660,062	1,590,000
Fair value of fixed-rate	$ 1,673,105	$ 1,485,672
Weighted Average | Fixed Rate Mortgages
Debt Instrument [Line Items]
Weighted average discount rates assumed in calculation of fair value for fixed-rate	4.24%	4.57%
Weighted Average | Fixed Rate Corporate Debt
Debt Instrument [Line Items]
Weighted average discount rates assumed in calculation of fair value for fixed-rate	6.03%	5.62%

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details)	Mar. 29, 2019USD ($)derivative	May 09, 2018USD ($)derivative	May 08, 2018USD ($)derivative	Dec. 31, 2019USD ($)derivative	Dec. 31, 2018USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge to be reclassified within 12 months				$ 3,500,000
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives entered into | derivative	1	4
Term of derivative	2 years	3 years
Notional amount	$ 52,000,000	$ 250,000,000	$ 270,000,000	$ 641,300,000
Derivatives replaced | derivative			2
Derivative replacement term			3 years
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	$ 9,306,000
Interest rate products | Accounts Payable and Accrued Liabilities | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of interest rate derivatives				$ 6,592,000	$ 1,913,000

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Financial Instruments (Details) - Interest rate products - Designated as Hedging Instrument - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred costs and other assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0	$ 9,306
Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 6,592	$ 1,913

Derivative Financial Instrume_5

Derivative Financial Instruments - Effect of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
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	$ (153,382)	$ (141,987)	$ (126,541)
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	(153,382)	(141,987)	(126,541)
Interest rate products | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative	(13,363)	1,054	1,256
Interest rate products | Interest expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from AOCI into Income	$ (739)	$ (2,338)	$ 1,145

Derivative Financial Instrume_6

Derivative Financial Instruments - Liabilities Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative instruments, net	$ (6,592)	$ 7,393
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	(6,592)	7,393
Significant Unobservable Inputs (Level 3)
Derivative [Line Items]
Derivative instruments, net	$ 0	$ 0

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands

Aug. 02, 2019

Feb. 20, 2019

Feb. 20, 2018

Feb. 21, 2017

Jan. 15, 2015

Feb. 28, 2019

Feb. 28, 2018

Feb. 28, 2017

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

May 28, 2014

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

Capital shares reserved for future issuance (in shares)

34,682,956

Number of authorized shares (in shares)

7,290,000

Vesting period

5 years

Restricted stock awards (in shares)

0

0

0

Grants in period (in shares)

0

0

0

Aggregate intrinsic value of options exercised

$ 1

Aggregate fair value of options vested

$ 32

Common stock dividends declared (usd per share)

$ 1

$ 1

General and Administrative Expense

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

Allocated share based compensation expense

$ 7,800

$ 8,300

$ 6,400

Inducement LTIP Units

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

Common unit, outstanding (in shares)

0

12,832

Units vested (in shares)

12,832

25,036

29,685

Units vested (in dollars per share)

$ 17.53

$ 17.97

$ 18.33

Units granted (in shares)

0

0

0

Units granted (in dollars per share)

$ 0

Restricted Stock Units (RSUs)

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

Common unit, outstanding (in shares)

1,882,414

1,569,313

Units vested (in shares)

948,072

Units vested (in dollars per share)

$ 8.71

Units granted (in shares)

1,406,455

Restricted stock awards (in shares)

1,406,455

812,440

843,435

Fair value of awards vested in period

$ 8,254

$ 3,320

$ 1,128

Unvested RSUs not yet recognized

$ 6,300

Unvested RSUs not yet recognized weighted average period

2 years 3 months 18 days

Units granted (in dollars per share)

$ 4.69

$ 6.28

$ 8.07

Restricted Stock Units (RSUs) | Chief Executive Officer

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

Contingent right (in shares)

1

Restricted stock awards (in shares)

500,000

572,163

587,000

682,435

Shares issued in period (in shares)

500,000

Value of shares granted

$ 1,800

Restricted stock awards, value

$ 1,800

$ 3,300

$ 3,600

$ 5,600

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

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

Vesting rights

33.33%

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

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

Vesting rights

33.33%

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

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

Vesting rights

33.33%

PSUs | Chief Executive Officer

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

Shares issued in period (in shares)

500,000

Value of shares granted

$ 1,200

PSUs | Minimum

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

Range of awards earned based on goals

0.00%

PSUs | Maximum

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

Range of awards earned based on goals

150.00%

Restricted Stock

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

Units vested (in shares)

9,033

Fair value of awards vested in period

$ 33

$ 391

$ 2,182

Share-based Payment Arrangement, Option

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

Vesting period

3 years

Vesting rights

33.30%

Aggregate intrinsic value of options exercised

0

12

Aggregate fair value of options vested

$ 154

$ 187

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)

10,000,000

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

500,000

Washington Prime Group, L.P. 2014 Stock Incentive Plan | Inducement LTIP Units

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

Vesting period

4 years

Common unit, outstanding (in shares)

0

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

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

Vesting period

3 years

Contingent right (in shares)

1

Units granted (in shares)

572,163

Units granted (in dollars per share)

$ 5.77

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

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

Vesting rights

33.33%

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

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

Vesting rights

33.33%

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

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

Vesting rights

33.33%

2019 Annual Long-Term Incentive Awards | PSUs

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

Units granted (in shares)

572,163

Units granted (in dollars per share)

$ 4.98

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

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

Units granted (in shares)

587,000

Units granted (in dollars per share)

$ 6.10

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

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 Payment Arrangement, Tranche Two

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 Payment Arrangement, Tranche Three

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

Vesting rights

33.33%

2018 Annual Long-Term Incentive Awards | PSUs

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

Units granted (in shares)

587,000

Units granted (in dollars per share)

$ 4.88

2018 Annual Long-Term Incentive Awards | PSUs | Minimum

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

Range of awards earned based on goals

0.00%

2018 Annual Long-Term Incentive Awards | PSUs | Maximum

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

Range of awards earned based on goals

200.00%

2017 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs)

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

Units granted (in shares)

358,198

Units granted (in dollars per share)

$ 9.58

2017 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche One

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

Vesting rights

33.33%

2017 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche Two

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

Vesting rights

33.33%

2017 Annual Long-Term Incentive Awards | Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Tranche Three

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]

Units granted (in shares)

358,198

Units granted (in dollars per share)

$ 7.72

The 2016 Annual Long-term Incentive Awards | Restricted Stock Units (RSUs)

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

Units granted (in shares)

324,237

Grant date fair value

$ 2,200

The 2016 Annual Long-term Incentive Awards | Long Term Incentive Plan Units

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

Minimum employee subscription rate

30.00%

Maximum employee subscription rate

100.00%

Base salary range

15 days

Payout for allocated RSUs was based on the Company's performance on the strategic goals

50.00%

Performance LTIP Units available to be earned with respect to each performance period based on achievement of absolute TSR goals

50.00%

Payout for TSR performance were achieved at target

100.00%

Common Stock

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

Shares issued (in shares)

314,577

Series H Cumulative Redeemable Preferred Stock, $0.0001 par value, 4,000,000 shares issued and outstanding as of December 31, 2019 and 2018

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 (usd per share)

$ 25

Series I Cumulative Redeemable Preferred Stock, $0.0001 par value, 3,800,000 shares issued and outstanding as of December 31, 2019 and 2018

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 (usd per share)

$ 25

Equity - Inducement LTIP Units

Equity - Inducement LTIP Units (Details) - Inducement LTIP Units - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance outstanding (in shares)	12,832
Units granted (in shares)	0	0	0
Units vested (in shares)	(12,832)	(25,036)	(29,685)
Units forfeited (in shares)	0
Balance outstanding (in shares)	0	12,832
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding weighted average grant date fair value (in dollars per share)	$ 17.53
Units granted (in dollars per share)	0
Units vested (in dollars per share)	17.53	$ 17.97	$ 18.33
Units forfeited (in dollars per share)	0
Outstanding weighted average grant date fair value (in dollars per share)	$ 0	$ 17.53

Equity - Summary of Annual Long

Equity - Summary of Annual Long-term Incentive Awards (Details) - $ / shares	Feb. 20, 2019	Feb. 20, 2018	Feb. 21, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)				1,406,455
Grant date fair value (in dollars per share)				$ 4.69	$ 6.28	$ 8.07
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)	572,163
Grant date fair value (in dollars per share)	$ 5.77
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)		587,000
Grant date fair value (in dollars per share)		$ 6.10
Restricted Stock Units (RSUs) | 2017 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			358,198
Grant date fair value (in dollars per share)			$ 9.58
PSUs | 2019 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	572,163
Grant date fair value (in dollars per share)	$ 4.98
PSUs | 2018 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)		587,000
Grant date fair value (in dollars per share)		$ 4.88
PSUs | 2017 Annual Long-Term Incentive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			358,198
Grant date fair value (in dollars per share)			$ 7.72

Equity - Assumptions Used to Va

Equity - Assumptions Used to Value Grants (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 02, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate	1.66%
Volatility	37.27%
Dividend yield	27.93%
Annual LTIP Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share of Awards (in dollars per share)					$ 3.81
Total amount to be recognized over the performance period					$ 2,516
Risk free rate					0.44%
Volatility					31.40%
Dividend yield					10.05%
2019 Annual Long-Term Incentive Awards | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate		2.45%
Volatility		26.53%
Dividend yield		17.33%
2018 Annual Long-Term Incentive Awards | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate			2.39%
Volatility			24.70%
Dividend yield			16.39%
2017 Annual Long-Term Incentive Awards | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free rate				1.49%
Volatility				20.52%
Dividend yield				10.44%

Equity - Performance Stock Unit

Equity - Performance Stock Unit Activity (Details) - PSUs	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance outstanding (in shares) | shares	883,601
Units granted (in shares) | shares	1,072,163
Units forfeited (in shares) | shares	(198,561)
Balance outstanding (in shares) | shares	1,757,203
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.90
Units granted (in dollars per share) | $ / shares	3.73
Units forfeited (in dollars per share) | $ / shares	5.69
Outstanding weighted average grant date fair value (in dollars per share) | $ / shares	$ 4.60

Equity - Restricted Stock Unit

Equity - Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance outstanding (in shares)	1,569,313
Units granted (in shares)	1,406,455
Units vested (in shares)	(948,072)
Units forfeited (in shares)	(145,282)
Balance outstanding (in shares)	1,882,414	1,569,313
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding weighted average grant date fair value (in dollars per share)	$ 8.07
Units granted (in dollars per share)	4.69	$ 6.28	$ 8.07
Units vested (in dollars per share)	8.71
Units forfeited (in dollars per share)	6.84
Outstanding weighted average grant date fair value (in dollars per share)	$ 5.32	$ 8.07

Equity - Stock Option Activity

Equity - Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of year (in shares)	679,741
Grants in period (in shares)	0	0	0
Options exercised (in shares)	(391)
Options forfeited/expired (in shares)	(78,061)
Outstanding at end of year (in shares)	601,289	679,741
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)	$ 2.08
Grants in period, weighted average grant date fair value (usd per share)	0
Options exercised (in dollars per share)	14.46
Options forfeited/expired (in dollars per share)	2.64
Outstanding at end of year (in dollars per share)	$ 2.02	$ 2.08

Equity - Summary of Options Out

Equity - Summary of Options Outstanding (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of Options Outstanding (in shares) | shares	601,289
Weighted Average Remaining Contractual Life	4 years 7 months 6 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 12.96
Number of Options Exercisable (in shares) | shares	601,289
Weighted Average Remaining Contractual Life	4 years 7 months 6 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 12.96
$5.76
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 5.76
Number of Options Outstanding (in shares) | shares	13,583
Weighted Average Remaining Contractual Life	2 months 12 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 5.76
Number of Options Exercisable (in shares) | shares	13,583
Weighted Average Remaining Contractual Life	2 months 12 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 5.76
$11.97
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 11.97
Number of Options Outstanding (in shares) | shares	30,415
Weighted Average Remaining Contractual Life	1 year 3 months 18 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 11.97
Number of Options Exercisable (in shares) | shares	30,415
Weighted Average Remaining Contractual Life	1 year 3 months 18 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 11.97
$12.67
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 12.67
Number of Options Outstanding (in shares) | shares	48,373
Weighted Average Remaining Contractual Life	2 years 4 months 24 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 12.67
Number of Options Exercisable (in shares) | shares	48,373
Weighted Average Remaining Contractual Life	2 years 4 months 24 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 12.67
$16.56
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 16.56
Number of Options Outstanding (in shares) | shares	94,420
Weighted Average Remaining Contractual Life	3 years 4 months 24 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 16.56
Number of Options Exercisable (in shares) | shares	94,420
Weighted Average Remaining Contractual Life	3 years 4 months 24 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 16.56
$13.10
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 13.10
Number of Options Outstanding (in shares) | shares	61,498
Weighted Average Remaining Contractual Life	4 years 3 months 18 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 13.10
Number of Options Exercisable (in shares) | shares	61,498
Weighted Average Remaining Contractual Life	4 years 3 months 18 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 13.10
$14.28
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 14.28
Number of Options Outstanding (in shares) | shares	198,000
Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 14.28
Number of Options Exercisable (in shares) | shares	198,000
Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 14.28
$9.95
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of Exercise Prices (in dollars per share)	$ 9.95
Number of Options Outstanding (in shares) | shares	155,000
Weighted Average Remaining Contractual Life	6 years 4 months 24 days
Options Outstanding Weighted Average Exercise Price (in dollars per share)	$ 9.95
Number of Options Exercisable (in shares) | shares	155,000
Weighted Average Remaining Contractual Life	6 years 4 months 24 days
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 9.95

Equity - Aggregate Intrinsic Va

Equity - Aggregate Intrinsic Value (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Equity [Abstract]
Aggregate intrinsic value of options outstanding	$ 0
Aggregate intrinsic value of options exercisable	0
Aggregate intrinsic value of options exercised	1
Aggregate fair value of options vested	$ 32

Commitments and Contingencies -

Commitments and Contingencies - Concentration Risk (Details)	12 Months Ended
	Dec. 31, 2019
Customer Concentration Risk | Sales Revenue, Net
Concentration Risk [Line Items]
Concentration risk	5.00%

Commitments and Contingencies_2

Commitments and Contingencies - Lease Commitments (Details)	12 Months Ended
	Dec. 31, 2019USD ($)lease	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Oct. 10, 2019property	Jan. 01, 2019USD ($)
Lessee, Lease, Description [Line Items]
Number of ground leases	4			4
Ground rent	$ 837,000	$ 789,000	$ 2,438,000
Number of material office leases | lease	2
Number of material garage leases | lease	1
Operating lease, liability	$ 12,914,000				$ 14,400,000
Operating lease, right-of-use asset					$ 14,400,000
Weighted average remaining lease term	19 years 2 months 12 days				18 years 6 months
Weighted average discount rate	8.70%				8.70%
Finance lease, liability	0
General and Administrative Expense
Lessee, Lease, Description [Line Items]
Ground rent	$ 2,609,000	2,668,000	2,397,000
Ground Leases
Lessee, Lease, Description [Line Items]
Ground rent	$ 20,000	$ 50,000	$ 100,000

Commitments and Contingencies_3

Commitments and Contingencies - Lessee, Operating Lease, Liability, Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Commitments and Contingencies Disclosure [Abstract]
2020	$ 2,049
2021	2,069
2022	2,099
2023	1,427
2024	999
Thereafter	20,378
Total lease payments	29,021
Less: Discount	16,107
Present value of lease liabilities	$ 12,914	$ 14,400

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017
Employee Compensation
Related Party Transaction [Line Items]
Related party transaction amount	$ 0.2
Former Member of Board | Consulting Agreement
Related Party Transaction [Line Items]
Related party transaction amount		$ 0.2

(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, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings (Loss) Per Common Share, Basic:
Net (loss) income attributable to common shareholders - basic	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ 55,007	$ 463	$ 10,086	$ 14,016	$ (9,758)	$ 79,572	$ 183,031
Weighted average shares outstanding - basic ( in shares)									188,445,434	187,696,339	186,829,385
(Loss) earnings per common share, basic (in dollars per share)									$ (0.05)	$ 0.42	$ 0.98
Earnings (Loss) Per Common Share, Diluted:
Net (loss) income attributable to common shareholders - basic	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ 55,007	$ 463	$ 10,086	$ 14,016	$ (9,758)	$ 79,572	$ 183,031
Net (loss) income attributable to common unitholders									(1,799)	14,735	34,222
Net (loss) income attributable to common shareholders - diluted									$ (11,557)	$ 94,307	$ 217,253
Weighted average shares outstanding - basic ( in shares)									188,445,434	187,696,339	186,829,385
Weighted average operating partnership units outstanding (in shares)									34,730,014	34,703,770	34,808,890
Weighted average additional dilutive securities outstanding (in shares)									0	603,674	337,508
Weighted average common shares outstanding - diluted (in shares)									223,175,448	223,003,783	221,975,783
Earnings per common share, diluted (in dollars per share)									$ (0.05)	$ 0.42	$ 0.98

(Loss) Earnings Per Common Sh_4

(Loss) Earnings Per Common Share/Unit - Earnings Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings (Loss) Per Common Unit, Basic & Diluted:
Weighted average common shares outstanding - diluted (in shares)									223,175,448	223,003,783	221,975,783
(Loss) earnings per common unit, basic and diluted (usd per unit)	$ 0.09	$ (0.02)	$ (0.09)	$ (0.03)	$ 0.29	$ 0	$ 0.05	$ 0.07	$ (0.05)	$ 0.42	$ 0.98
Washington Prime Group, L.P.
Earnings (Loss) Per Common Unit, Basic & Diluted:
Net income attributable to common shareholders - basic									$ (11,557)	$ 94,307	$ 217,253
Weighted average common units outstanding - basic (shares)									223,175,448	222,400,109	221,638,275
Weighted average additional dilutive securities outstanding (shares)									0	603,674	337,508
Weighted average common shares outstanding - diluted (in shares)									223,175,448	223,003,783	221,975,783
(Loss) earnings per common unit, basic and diluted (usd per unit)	$ 0.09	$ (0.02)	$ (0.09)	$ (0.03)	$ 0.29	$ 0	$ 0.05	$ 0.07	$ (0.05)	$ 0.42	$ 0.98

Earnings (Loss) Per Common Shar

Earnings (Loss) Per Common Share/Unit (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019shares
Contingently-Issuable Outstanding Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	601,289
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	571,074
Performance Based Components
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	1,763,265
Washington Prime Group, L.P. | Contingently-Issuable Outstanding Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	601,289
Washington Prime Group, L.P. | Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	571,074
Washington Prime Group, L.P. | Performance Based Components
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded (shares)	1,763,265

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 25, 2020	Jan. 31, 2020	Jan. 14, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 24, 2020
Subsequent Event [Line Items]
Common stock dividends declared (usd per share)				$ 1	$ 1
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends declared (usd per share)	$ 0.125
Disposed of by Sale, Not Discontinued Operations | Matteson Plaza | Subsequent Event
Subsequent Event [Line Items]
Proceeds from sale of real estate			$ 1.1
Sales Proceeds			$ 0.4
Disposed of by Sale, Not Discontinued Operations | Southgate Mall, Missoula, Montana | Subsequent Event
Subsequent Event [Line Items]
Proceeds from sale of real estate						$ 10
Disposed of by Sale, Not Discontinued Operations | DeKalb Plaza | Subsequent Event
Subsequent Event [Line Items]
Proceeds from sale of real estate		$ 13.6
Sales Proceeds		$ 13.4

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total revenue	$ 170,023	$ 161,204	$ 161,434	$ 168,823	$ 182,949	$ 179,419	$ 178,117	$ 176,994	$ 661,484	$ 717,479	$ 753,054
Net (loss) income	23,868	(1,665)	(16,880)	(2,563)	68,836	4,115	15,519	20,185	2,760	108,655	231,593
Net (loss) income attributable to the Company	20,608	(913)	(13,754)	(1,667)	58,515	3,971	13,594	17,524	4,274	93,604	197,063
Net (loss) income attributable to common shareholders	$ 17,100	$ (4,421)	$ (17,262)	$ (5,175)	$ 55,007	$ 463	$ 10,086	$ 14,016	$ (9,758)	$ 79,572	$ 183,031
(Loss) earnings per common share/unit—basic and diluted (in dollars per share)	$ 0.09	$ (0.02)	$ (0.09)	$ (0.03)	$ 0.29	$ 0	$ 0.05	$ 0.07	$ (0.05)	$ 0.42	$ 0.98
Net (loss) income attributable to unitholders									$ (1,514)	$ 15,051	$ 34,530
Washington Prime Group, L.P.
Total revenue									661,484	717,479	753,054
Net (loss) income									$ 2,760	$ 108,655	$ 231,593
Net (loss) income attributable to common shareholders	$ 20,255	$ (5,233)	$ (20,448)	$ (6,131)	$ 65,192	$ 547	$ 11,951	$ 16,617
(Loss) earnings per common share/unit—basic and diluted (in dollars per share)	$ 0.09	$ (0.02)	$ (0.09)	$ (0.03)	$ 0.29	$ 0	$ 0.05	$ 0.07	$ (0.05)	$ 0.42	$ 0.98
Net (loss) income attributable to unitholders	$ 23,868	$ (1,665)	$ (16,880)	$ (2,563)	$ 68,836	$ 4,115	$ 15,519	$ 20,185	$ 45	$ 76	$ 68

Schedule III - Real Estate an_2

Schedule III - Real Estate and Accumulated Depreciation - Real Estate (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 1,117,242
Initial Cost Land	776,496
Initial Cost Buildings and Improvements	3,550,321
Cost Capitalized Subsequent to Construction or Acquisition Land	47,391
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,424,009
Gross Amounts At Which Carried at Close of Period Land	823,887
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	4,974,330
Total cost per Schedule III	5,798,217	$ 5,817,153	$ 5,715,996	$ 6,205,387
Accumulated Depreciation	2,320,417	$ 2,212,476	$ 2,076,948	$ 2,063,107
Malls | Anderson Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	17,307
Initial Cost Land	1,712
Initial Cost Buildings and Improvements	15,227
Cost Capitalized Subsequent to Construction or Acquisition Land	851
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	20,033
Gross Amounts At Which Carried at Close of Period Land	2,563
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	35,260
Total cost per Schedule III	37,823
Accumulated Depreciation	25,221
Malls | Ashland Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,954
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	4,591
Gross Amounts At Which Carried at Close of Period Land	13,066
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	72,958
Total cost per Schedule III	86,024
Accumulated Depreciation	15,825
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	10,245
Gross Amounts At Which Carried at Close of Period Land	2,715
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	70,567
Total cost per Schedule III	73,282
Accumulated Depreciation	41,583
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	33,867
Gross Amounts At Which Carried at Close of Period Land	29,217
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	112,671
Total cost per Schedule III	141,888
Accumulated Depreciation	77,075
Malls | Brunswick Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	69,737
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	35,675
Gross Amounts At Which Carried at Close of Period Land	8,436
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	91,513
Total cost per Schedule III	99,949
Accumulated Depreciation	60,201
Malls | Charlottesville Fashion Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	45,146
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	10,617
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	65,355
Total cost per Schedule III	65,355
Accumulated Depreciation	45,883
Malls | Chautaugua 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	13,455
Gross Amounts At Which Carried at Close of Period Land	945
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	23,096
Total cost per Schedule III	24,041
Accumulated Depreciation	18,336
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	2,466
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	11,686
Gross Amounts At Which Carried at Close of Period Land	39,073
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	126,893
Total cost per Schedule III	165,966
Accumulated Depreciation	26,861
Malls | Cottonwood Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	95,283
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	25,803
Gross Amounts At Which Carried at Close of Period Land	15,164
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	95,761
Total cost per Schedule III	110,925
Accumulated Depreciation	52,330
Malls | Dayton Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	79,092
Initial Cost Land	10,899
Initial Cost Buildings and Improvements	160,723
Cost Capitalized Subsequent to Construction or Acquisition Land	3,607
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	12,092
Gross Amounts At Which Carried at Close of Period Land	14,506
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	172,815
Total cost per Schedule III	187,321
Accumulated Depreciation	27,557
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	35,306
Gross Amounts At Which Carried at Close of Period Land	11,529
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	142,656
Total cost per Schedule III	154,185
Accumulated Depreciation	85,118
Malls | Georgesville Square
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	720
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	0
Gross Amounts At Which Carried at Close of Period Land	720
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	0
Total cost per Schedule III	720
Accumulated Depreciation	0
Malls | Grand Central Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	38,748
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	23,410
Gross Amounts At Which Carried at Close of Period Land	18,956
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	113,146
Total cost per Schedule III	132,102
Accumulated Depreciation	33,126
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	54,357
Gross Amounts At Which Carried at Close of Period Land	12,181
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	154,719
Total cost per Schedule III	166,900
Accumulated Depreciation	84,271
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	(252)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	2,938
Gross Amounts At Which Carried at Close of Period Land	6,857
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	22,143
Total cost per Schedule III	29,000
Accumulated Depreciation	5,796
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	45,472
Gross Amounts At Which Carried at Close of Period Land	9,270
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	62,951
Total cost per Schedule III	72,221
Accumulated Depreciation	44,971
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	71,433
Gross Amounts At Which Carried at Close of Period Land	4,868
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	101,737
Total cost per Schedule III	106,605
Accumulated Depreciation	52,653
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	16,805
Gross Amounts At Which Carried at Close of Period Land	7,659
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	52,143
Total cost per Schedule III	59,802
Accumulated Depreciation	34,495
Malls | Lincolnwood Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	47,524
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	20,627
Gross Amounts At Which Carried at Close of Period Land	7,834
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	84,107
Total cost per Schedule III	91,941
Accumulated Depreciation	58,657
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	(1,243)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	14,674
Gross Amounts At Which Carried at Close of Period Land	12,863
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	72,960
Total cost per Schedule III	85,823
Accumulated Depreciation	26,923
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	22,454
Gross Amounts At Which Carried at Close of Period Land	3,578
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	26,021
Total cost per Schedule III	29,599
Accumulated Depreciation	9,567
Malls | The Mall at Fairfield Commons
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	33,947
Gross Amounts At Which Carried at Close of Period Land	17,507
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	209,373
Total cost per Schedule III	226,880
Accumulated Depreciation	37,854
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	27,121
Gross Amounts At Which Carried at Close of Period Land	17,119
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	107,879
Total cost per Schedule III	124,998
Accumulated Depreciation	57,521
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	2,883
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	30,399
Gross Amounts At Which Carried at Close of Period Land	2,883
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	37,967
Total cost per Schedule III	40,850
Accumulated Depreciation	13,690
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	3,650
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	38,206
Gross Amounts At Which Carried at Close of Period Land	19,412
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	94,097
Total cost per Schedule III	113,509
Accumulated Depreciation	56,346
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	9,084
Gross Amounts At Which Carried at Close of Period Land	11,067
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	89,723
Total cost per Schedule III	100,790
Accumulated Depreciation	37,383
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	3,017
Gross Amounts At Which Carried at Close of Period Land	10,219
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	80,616
Total cost per Schedule III	90,835
Accumulated Depreciation	17,211
Malls | Muncie Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	33,132
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	29,111
Gross Amounts At Which Carried at Close of Period Land	220
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	34,887
Total cost per Schedule III	35,107
Accumulated Depreciation	24,981
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	(2,046)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(9,517)
Gross Amounts At Which Carried at Close of Period Land	1,126
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	23,595
Total cost per Schedule III	24,721
Accumulated Depreciation	10,827
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	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	7,864
Gross Amounts At Which Carried at Close of Period Land	18,603
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	65,205
Total cost per Schedule III	83,808
Accumulated Depreciation	16,094
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	55,438
Gross Amounts At Which Carried at Close of Period Land	4,206
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	68,217
Total cost per Schedule III	72,423
Accumulated Depreciation	41,792
Malls | Oak Court Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	36,260
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	14,347
Gross Amounts At Which Carried at Close of Period Land	15,673
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	71,651
Total cost per Schedule III	87,324
Accumulated Depreciation	54,577
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	49,366
Gross Amounts At Which Carried at Close of Period Land	12,731
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	114,487
Total cost per Schedule III	127,218
Accumulated Depreciation	73,955
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	17,496
Gross Amounts At Which Carried at Close of Period Land	38,751
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	124,590
Total cost per Schedule III	163,341
Accumulated Depreciation	26,508
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	24,741
Gross Amounts At Which Carried at Close of Period Land	11,198
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	64,468
Total cost per Schedule III	75,666
Accumulated Depreciation	37,789
Malls | Port Charlotte Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	41,207
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	19,099
Gross Amounts At Which Carried at Close of Period Land	5,471
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	77,669
Total cost per Schedule III	83,140
Accumulated Depreciation	53,247
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	17,074
Gross Amounts At Which Carried at Close of Period Land	1,929
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	55,683
Total cost per Schedule III	57,612
Accumulated Depreciation	40,334
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	3,825
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	7,149
Gross Amounts At Which Carried at Close of Period Land	18,850
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	83,133
Total cost per Schedule III	101,983
Accumulated Depreciation	31,943
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	41,669
Gross Amounts At Which Carried at Close of Period Land	16,746
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	119,436
Total cost per Schedule III	136,182
Accumulated Depreciation	77,358
Malls | Southgate Mall, Missoula, Montana
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,000
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	1,526
Gross Amounts At Which Carried at Close of Period Land	17,040
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	37,422
Total cost per Schedule III	54,462
Accumulated Depreciation	2,985
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	7,129
Gross Amounts At Which Carried at Close of Period Land	2,372
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,029
Total cost per Schedule III	38,401
Accumulated Depreciation	29,627
Malls | Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	51,250
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	60,151
Gross Amounts At Which Carried at Close of Period Land	19,934
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	116,983
Total cost per Schedule III	136,917
Accumulated Depreciation	86,012
Malls | Waterford Lakes Town Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	178,526
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	29,984
Gross Amounts At Which Carried at Close of Period Land	8,679
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	102,820
Total cost per Schedule III	111,499
Accumulated Depreciation	62,449
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	5,164
Gross Amounts At Which Carried at Close of Period Land	9,909
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	97,753
Total cost per Schedule III	107,662
Accumulated Depreciation	18,306
Malls | Westminster Mall
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	76,776
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	43,343
Gross Amounts At Which Carried at Close of Period Land	43,284
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	128,052
Total cost per Schedule III	171,336
Accumulated Depreciation	72,662
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	13,509
Gross Amounts At Which Carried at Close of Period Land	57,572
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	133,700
Total cost per Schedule III	191,272
Accumulated Depreciation	21,665
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	18,925
Gross Amounts At Which Carried at Close of Period Land	7,871
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	45,109
Total cost per Schedule III	52,980
Accumulated Depreciation	31,347
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	1,063
Gross Amounts At Which Carried at Close of Period Land	231
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	5,660
Total cost per Schedule III	5,891
Accumulated Depreciation	2,952
Open Air Properties | Canyon View Marketplace
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,120
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	120
Gross Amounts At Which Carried at Close of Period Land	1,370
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,690
Total cost per Schedule III	11,060
Accumulated Depreciation	1,379
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	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,639
Gross Amounts At Which Carried at Close of Period Land	4,410
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	12,880
Total cost per Schedule III	17,290
Accumulated Depreciation	10,830
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	1,043
Gross Amounts At Which Carried at Close of Period Land	8,036
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	22,210
Total cost per Schedule III	30,246
Accumulated Depreciation	6,676
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	12,403
Gross Amounts At Which Carried at Close of Period Land	2,886
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	20,910
Total cost per Schedule III	23,796
Accumulated Depreciation	14,182
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	2,700
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	8,402
Total cost per Schedule III	8,402
Accumulated Depreciation	4,632
Open Air Properties | DeKalb Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,955
Initial Cost Buildings and Improvements	3,405
Cost Capitalized Subsequent to Construction or Acquisition Land	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	1,512
Gross Amounts At Which Carried at Close of Period Land	1,955
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	4,917
Total cost per Schedule III	6,872
Accumulated Depreciation	2,928
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	4,115
Gross Amounts At Which Carried at Close of Period Land	3,350
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	14,667
Total cost per Schedule III	18,017
Accumulated Depreciation	4,210
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	2,124
Gross Amounts At Which Carried at Close of Period Land	7,431
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	37,121
Total cost per Schedule III	44,552
Accumulated Depreciation	8,348
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	3,371
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	46,115
Gross Amounts At Which Carried at Close of Period Land	8,116
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	51,159
Total cost per Schedule III	59,275
Accumulated Depreciation	5,921
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	13,099
Gross Amounts At Which Carried at Close of Period Land	4,585
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	29,917
Total cost per Schedule III	34,502
Accumulated Depreciation	19,004
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	3,681
Gross Amounts At Which Carried at Close of Period Land	5,445
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	30,368
Total cost per Schedule III	35,813
Accumulated Depreciation	7,096
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	4,852
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	1,277
Gross Amounts At Which Carried at Close of Period Land	4,223
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	16,401
Total cost per Schedule III	20,624
Accumulated Depreciation	7,793
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	5,630
Gross Amounts At Which Carried at Close of Period Land	2,118
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,862
Total cost per Schedule III	11,980
Accumulated Depreciation	4,671
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	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	2,736
Gross Amounts At Which Carried at Close of Period Land	2,487
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,156
Total cost per Schedule III	11,643
Accumulated Depreciation	6,165
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	18,812
Gross Amounts At Which Carried at Close of Period Land	4,613
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,355
Total cost per Schedule III	40,968
Accumulated Depreciation	24,658
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	15,906
Gross Amounts At Which Carried at Close of Period Land	5,822
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	46,781
Total cost per Schedule III	52,603
Accumulated Depreciation	26,549
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	10,060
Gross Amounts At Which Carried at Close of Period Land	1,781
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	15,211
Total cost per Schedule III	16,992
Accumulated Depreciation	10,964
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	4,348
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	11,374
Gross Amounts At Which Carried at Close of Period Land	502
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	20,265
Total cost per Schedule III	20,767
Accumulated Depreciation	5,246
Open Air Properties | Mall of Georgia Crossing
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	21,680
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	3,396
Gross Amounts At Which Carried at Close of Period Land	9,506
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,288
Total cost per Schedule III	45,794
Accumulated Depreciation	21,447
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	0
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	8,374
Gross Amounts At Which Carried at Close of Period Land	206
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,112
Total cost per Schedule III	9,318
Accumulated Depreciation	5,245
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	3,070
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	3,654
Total cost per Schedule III	3,654
Accumulated Depreciation	546
Open Air Properties | Matteson Plaza
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,771
Initial Cost Buildings and Improvements	9,737
Cost Capitalized Subsequent to Construction or Acquisition Land	(1,152)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	202
Gross Amounts At Which Carried at Close of Period Land	619
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,939
Total cost per Schedule III	10,558
Accumulated Depreciation	9,939
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	3,931
Gross Amounts At Which Carried at Close of Period Land	353
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	14,440
Total cost per Schedule III	14,793
Accumulated Depreciation	8,940
Open Air Properties | North Ridge Shopping Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	11,500
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	7,926
Gross Amounts At Which Carried at Close of Period Land	385
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	20,752
Total cost per Schedule III	21,137
Accumulated Depreciation	8,016
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	3,955
Gross Amounts At Which Carried at Close of Period Land	148
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	5,369
Total cost per Schedule III	5,517
Accumulated Depreciation	3,389
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	8,901
Gross Amounts At Which Carried at Close of Period Land	17,074
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	52,801
Total cost per Schedule III	69,875
Accumulated Depreciation	8,844
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	14,672
Gross Amounts At Which Carried at Close of Period Land	7,275
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	14,672
Total cost per Schedule III	21,947
Accumulated Depreciation	6,691
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	16,960
Gross Amounts At Which Carried at Close of Period Land	5,032
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	43,395
Total cost per Schedule III	48,427
Accumulated Depreciation	21,855
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	5,583
Gross Amounts At Which Carried at Close of Period Land	2,225
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	24,281
Total cost per Schedule III	26,506
Accumulated Depreciation	10,897
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	11,955
Gross Amounts At Which Carried at Close of Period Land	2,001
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,171
Total cost per Schedule III	38,172
Accumulated Depreciation	8,019
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	7,989
Gross Amounts At Which Carried at Close of Period Land	12,943
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	36,166
Total cost per Schedule III	49,109
Accumulated Depreciation	25,566
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	10,907
Gross Amounts At Which Carried at Close of Period Land	8,154
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	29,900
Total cost per Schedule III	38,054
Accumulated Depreciation	19,065
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	5,857
Gross Amounts At Which Carried at Close of Period Land	234
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	6,602
Total cost per Schedule III	6,836
Accumulated Depreciation	4,425
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	5,178
Gross Amounts At Which Carried at Close of Period Land	2,119
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	13,543
Total cost per Schedule III	15,662
Accumulated Depreciation	10,795
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	773
Gross Amounts At Which Carried at Close of Period Land	5,430
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	27,718
Total cost per Schedule III	33,148
Accumulated Depreciation	10,173
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	(935)
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	2,643
Gross Amounts At Which Carried at Close of Period Land	18,630
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	54,516
Total cost per Schedule III	73,146
Accumulated Depreciation	15,896
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	4,403
Open Air Properties | West Ridge Outlets
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost Land	1,376
Initial Cost Buildings and Improvements	4,560
Cost Capitalized Subsequent to Construction or Acquisition Land	39
Cost Capitalized Subsequent to Construction or Acquisition Buildings and Improvements	(2,845)
Gross Amounts At Which Carried at Close of Period Land	1,415
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	1,715
Total cost per Schedule III	3,130
Accumulated Depreciation	1,247
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	8,355
Gross Amounts At Which Carried at Close of Period Land	6,647
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	32,958
Total cost per Schedule III	39,605
Accumulated Depreciation	7,705
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	276
Gross Amounts At Which Carried at Close of Period Land	5,576
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,051
Total cost per Schedule III	14,627
Accumulated Depreciation	2,520
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	10,713
Gross Amounts At Which Carried at Close of Period Land	3,232
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	24,980
Total cost per Schedule III	28,212
Accumulated Depreciation	14,589
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	5,037
Gross Amounts At Which Carried at Close of Period Land	8,500
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	33,549
Total cost per Schedule III	42,049
Accumulated Depreciation	9,728
Open Air Properties | Wolf Ranch
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	16,604
Gross Amounts At Which Carried at Close of Period Land	21,813
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	68,151
Total cost per Schedule III	89,964
Accumulated Depreciation	33,695
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	9,953
Gross Amounts At Which Carried at Close of Period Land	0
Gross Amounts At Which Carried at Close of Period Buildings and Improvements	9,953
Total cost per Schedule III	9,953
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, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance, beginning of year	$ 5,817,153	$ 5,715,996	$ 6,205,387
Acquisitions	10,899	72,647	14,366
Improvements	178,669	143,123	135,713
Disposals	(208,504)	(114,613)	(639,470)
Balance, end of year	5,798,217	5,817,153	5,715,996
Impairment of real estate	$ 35,256	$ 0	$ 66,925

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, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Investment properties at cost	$ 5,902,406	$ 5,914,705
Total cost per Schedule III	5,798,217	$ 5,817,153	$ 5,715,996	$ 6,205,387
Aggregate cost for federal income tax purposes of real estate assets	4,665,380
Furniture Fixtures and Equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Investment properties at cost	$ 104,189

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, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance, beginning of year	$ 2,212,476	$ 2,076,948	$ 2,063,107
Depreciation expense	226,696	205,724	205,078
Disposals	(118,755)	(70,196)	(191,237)
Balance, end of year	$ 2,320,417	$ 2,212,476	$ 2,076,948

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, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Accumulated depreciation	$ 2,397,736	$ 2,283,764
Total accumulated depreciation per Schedule III	2,320,417	$ 2,212,476	$ 2,076,948	$ 2,063,107
Furniture Fixtures and Equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Accumulated depreciation	$ 77,319
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

Uncategorized Items - wpg201910

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 2,474,000
Washington Prime Group, L.P. [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2,474,000
Washington Prime Group, L.P. [Member] | Partners' Equity [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2,474,000
Washington Prime Group, L.P. [Member] | Partners' Equity [Member] | Limited Partner [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	389,000
Washington Prime Group, L.P. [Member] | Partners' Equity [Member] | General Partner [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2,085,000
Washington Prime Group, L.P. [Member] | Partners' Equity [Member] | General Partner Common Equity [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2,085,000
Additional Paid-in Capital [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(389,000)
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2,085,000
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	1,890,000
Noncontrolling Interest [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	389,000
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 584,000