CBL & Associates Properties (CBL) 10-Q 9 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Nov. 02, 2018
Entity Information [Line Items]
Entity Registrant Name	CBL & ASSOCIATES PROPERTIES INC
Entity Central Index Key	910,612
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Emerging Growth Company	false
Small Business	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)		172,669,152
CBL & Associates Limited Partnership
Entity Information [Line Items]
Entity Registrant Name	CBL & Associates Limited Partnership
Entity Central Index Key	915,140
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2018		Dec. 31, 2017
Real estate assets:
Land	[1]	$ 818,436		$ 813,390
Buildings and improvements	[1]	6,544,019		6,723,194
Real estate investment property, at cost	[1]	7,362,455		7,536,584
Accumulated depreciation	[1]	(2,514,904)		(2,465,095)
Real estate investment property, net, before developments in progress	[1]	4,847,551		5,071,489
Held for sale	[1]	14,807		0
Developments in progress	[1]	73,530		85,346
Net investment in real estate assets	[1]	4,935,888		5,156,835
Cash and cash equivalents		20,695	[2]	32,627	[1]
Receivables:
Tenant, net of allowance for doubtful accounts of $2,214 and $2,011 in 2018 and 2017, respectively	[1]	77,095		83,552
Other, net of allowance for doubtful accounts of $838 in 2017	[1]	7,109		7,570
Mortgage and other notes receivable	[1]	8,171		8,945
Investments in unconsolidated affiliates	[1]	275,884		249,192
Intangible lease assets and other assets	[1]	166,177		166,087
Total assets	[1]	5,491,019		5,704,808
LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY
Mortgage and other indebtedness, net		4,115,808		4,230,845
Accounts payable and accrued liabilities		247,490		228,650
Total liabilities	[1]	4,363,298		4,459,495
Commitments and contingencies (Note 7 and Note 11)
Redeemable noncontrolling interests		6,228		8,835
Preferred stock, $.01 par value, 15,000,000 shares authorized:
Common stock, $.01 par value, 350,000,000 shares authorized, 172,663,873 and 171,088,778 issued and outstanding in 2018 and 2017, respectively		1,727		1,711
Partners' capital:
Additional paid-in capital		1,967,882		1,974,537
Dividends in excess of cumulative earnings		(927,416)		(836,269)
Total shareholders' equity		1,042,218		1,140,004
Noncontrolling interests		79,275		96,474
Total equity		1,121,493		1,236,478
Total liabilities, redeemable noncontrolling interests and equity		5,491,019		5,704,808
CBL & Associates Limited Partnership
Real estate assets:
Land	[3]	818,436		813,390
Buildings and improvements	[3]	6,544,019		6,723,194
Real estate investment property, at cost	[3]	7,362,455		7,536,584
Accumulated depreciation	[3]	(2,514,904)		(2,465,095)
Real estate investment property, net, before developments in progress	[3]	4,847,551		5,071,489
Held for sale	[1]	14,807		0
Developments in progress	[3]	73,530		85,346
Net investment in real estate assets	[3]	4,935,888		5,156,835
Cash and cash equivalents		20,695		32,627	[3]
Receivables:
Tenant, net of allowance for doubtful accounts of $2,214 and $2,011 in 2018 and 2017, respectively	[3]	77,095		83,552
Other, net of allowance for doubtful accounts of $838 in 2017	[3]	7,061		7,520
Mortgage and other notes receivable	[3]	8,171		8,945
Investments in unconsolidated affiliates	[3]	276,418		249,722
Intangible lease assets and other assets	[3]	166,057		165,967
Total assets	[3]	5,491,385		5,705,168
LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY
Mortgage and other indebtedness, net		4,115,808		4,230,845
Accounts payable and accrued liabilities		247,607		228,720
Total liabilities	[3]	4,363,415		4,459,565
Commitments and contingencies (Note 7 and Note 11)
Redeemable noncontrolling interests		6,228		8,835
Partners' capital:
Preferred units		565,212		565,212
General partner		5,540		6,735
Limited partners		539,191		655,120
Total partners' capital		1,109,943		1,227,067
Noncontrolling interests		11,799		9,701
Total capital		1,121,742		1,236,768
Total liabilities, redeemable noncontrolling interests and equity		5,491,385		5,705,168
Series D Preferred Stock
Preferred stock, $.01 par value, 15,000,000 shares authorized:
Preferred stock outstanding		18		18
Series E Preferred Stock
Preferred stock, $.01 par value, 15,000,000 shares authorized:
Preferred stock outstanding		$ 7		$ 7
[1]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.
[2]	Included in intangible lease assets and other assets in the condensed consolidated balance sheets.
[3]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can only be used to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Operating Partnership. See Note 6.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Tenant receivables allowance for doubtful accounts	$ 2,214	$ 2,011
Other receivables allowance for doubtful accounts		$ 838
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock authorized (shares)	15,000,000	15,000,000
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock authorized (shares)	350,000,000	350,000,000
Common stock issued (shares)	172,663,873	171,088,778
Common stock outstanding (shares)	172,663,873	171,088,778
Series D Preferred Stock
Preferred stock outstanding (shares)	1,815,000	1,815,000
Dividend rate of preferred stock (as a percent)	7.375%	7.375%
Series E Preferred Stock
Preferred stock outstanding (shares)	690,000	690,000
Dividend rate of preferred stock (as a percent)	6.625%	6.625%
CBL & Associates Limited Partnership
Tenant receivables allowance for doubtful accounts	$ 2,214	$ 2,011
Other receivables allowance for doubtful accounts	0	$ 838
Assets related to consolidated variable interest entities	621,616
Liabilities related to consolidated variable interest entities	$ 414,923

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUES:
Minimum rents	$ 142,248	$ 150,836	$ 441,097	$ 468,195
Percentage rents	2,429	3,000	6,610	7,127
Other rents	2,347	3,790	6,898	11,171
Tenant reimbursements	55,374	63,055	172,601	192,577
Management, development and leasing fees	2,658	2,718	8,022	8,747
Other	1,822	1,251	6,448	4,079
Total revenues	206,878	224,650	641,676	691,896
OPERATING EXPENSES:
Property operating	30,004	31,295	92,357	96,250
Depreciation and amortization	71,945	71,732	217,261	225,461
Real estate taxes	19,433	21,573	61,737	62,343
Maintenance and repairs	11,475	11,254	36,713	36,322
General and administrative	16,051	13,568	47,845	45,402
Loss on impairment	14,600	24,935	84,644	71,401
Other	38	132	377	5,151
Total operating expenses	163,546	174,489	540,934	542,330
Income from operations	43,332	50,161	100,742	149,566
Interest and other income (loss)	283	(200)	714	1,235
Interest expense	(55,194)	(53,913)	(163,164)	(165,179)
Gain on extinguishment of debt	0	6,452	0	30,927
Gain (loss) on investments	0	(354)	387	(6,197)
Income tax benefit (provision)	(1,034)	1,064	1,846	4,784
Equity in earnings of unconsolidated affiliates	1,762	4,706	9,869	16,404
Income (loss) from continuing operations before gain on sales of real estate assets	(10,851)	7,916	(49,606)	31,540
Gain on sales of real estate assets	7,880	1,383	15,998	86,904
Net income (loss)	(2,971)	9,299	(33,608)	118,444
Net (income) loss attributable to noncontrolling interests in:
Operating Partnership	1,628	81	8,978	(8,702)
Other consolidated subsidiaries/Net (income) loss attributable to noncontrolling interests	(24)	(415)	369	(25,266)
Net income (loss) attributable to the Company/Operating Partnership	(1,367)	8,965	(24,261)	84,476
Preferred dividends/distributions to preferred unitholders	(11,223)	(11,223)	(33,669)	(33,669)
Net income (loss) attributable to common shareholders/unitholders	$ (12,590)	$ (2,258)	$ (57,930)	$ 50,807
Basic and diluted per share data attributable to common shareholders:
Net income (loss) attributable to common shareholders/unitholders (USD per share)	$ (0.07)	$ (0.01)	$ (0.34)	$ 0.30
Weighted-average common and potential dilutive common shares/units outstanding (shares)	172,665	171,096	172,426	171,060
Dividends declared per common share/unit (USD per share)	$ 0.2	$ 0.265	$ 0.6	$ 0.795
CBL & Associates Limited Partnership
REVENUES:
Minimum rents	$ 142,248	$ 150,836	$ 441,097	$ 468,195
Percentage rents	2,429	3,000	6,610	7,127
Other rents	2,347	3,790	6,898	11,171
Tenant reimbursements	55,374	63,055	172,601	192,577
Management, development and leasing fees	2,658	2,718	8,022	8,747
Other	1,822	1,251	6,448	4,079
Total revenues	206,878	224,650	641,676	691,896
OPERATING EXPENSES:
Property operating	30,004	31,295	92,357	96,250
Depreciation and amortization	71,945	71,732	217,261	225,461
Real estate taxes	19,433	21,573	61,737	62,343
Maintenance and repairs	11,475	11,254	36,713	36,322
General and administrative	16,051	13,568	47,845	45,402
Loss on impairment	14,600	24,935	84,644	71,401
Other	38	132	377	5,151
Total operating expenses	163,546	174,489	540,934	542,330
Income from operations	43,332	50,161	100,742	149,566
Interest and other income (loss)	283	(200)	714	1,235
Interest expense	(55,194)	(53,913)	(163,164)	(165,179)
Gain on extinguishment of debt	0	6,452	0	30,927
Gain (loss) on investments	0	(354)	387	(6,197)
Income tax benefit (provision)	(1,034)	1,064	1,846	4,784
Equity in earnings of unconsolidated affiliates	1,762	4,706	9,869	16,404
Income (loss) from continuing operations before gain on sales of real estate assets	(10,851)	7,916	(49,606)	31,540
Gain on sales of real estate assets	7,880	1,383	15,998	86,904
Net income (loss)	(2,971)	9,299	(33,608)	118,444
Net (income) loss attributable to noncontrolling interests in:
Other consolidated subsidiaries/Net (income) loss attributable to noncontrolling interests	(24)	(415)	369	(25,266)
Net income (loss) attributable to the Company/Operating Partnership	(2,995)	8,884	(33,239)	93,178
Preferred dividends/distributions to preferred unitholders	(11,223)	(11,223)	(33,669)	(33,669)
Net income (loss) attributable to common shareholders/unitholders	$ (14,218)	$ (2,339)	$ (66,908)	$ 59,509
Basic and diluted per share data attributable to common shareholders:
Net income (loss) attributable to common shareholders/unitholders (USD per share)	$ (0.07)	$ (0.01)	$ (0.34)	$ 0.30
Weighted-average common and potential dilutive common shares/units outstanding (shares)	199,432	199,321	199,630	199,325
Dividends declared per common share/unit (USD per share)	$ 0.209	$ 0.273	$ 0.627	$ 0.819

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Equity/Capital - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Dividends in Excess of Cumulative Earnings	Total Shareholders' Equity/Partners' Capital	Noncontrolling Interests	Redeemable Noncontrolling Interests	CBL & Associates Limited Partnership	CBL & Associates Limited PartnershipTotal Shareholders' Equity/Partners' Capital	CBL & Associates Limited PartnershipPreferred Units	CBL & Associates Limited PartnershipCommon Units	CBL & Associates Limited PartnershipGeneral Partner	CBL & Associates Limited PartnershipLimited Partners	CBL & Associates Limited PartnershipNoncontrolling Interests	CBL & Associates Limited PartnershipRedeemable Common Units
Beginning balance of redeemable noncontrolling partnership interests at Dec. 31, 2016								$ 17,996								$ 17,996
Redeemable Noncontrolling Interests
Net income (loss)								481								481
Distributions declared - common units	$ (136,021)				$ (136,021)	$ (136,021)			$ (159,724)	$ (159,724)			$ (1,600)	$ (158,124)		(3,429)
Adjustment for noncontrolling interests	(2,222)			$ (5,635)		(5,635)	$ 3,413	2,224
Allocation of partners' capital									(2,259)	(2,259)			(68)	(2,191)		2,224
Adjustment to record redeemable interests at redemption value	4,195			3,629		3,629	566	(4,196)	4,195	4,195			43	4,152		(4,196)
Distributions to noncontrolling interests	(48,477)						(48,477)	(3,429)	(24,774)						$ (24,774)
Ending balance of redeemable noncontrolling partnership interests at Sep. 30, 2017								13,076								13,076
Beginning balance at Dec. 31, 2016	1,340,852	$ 25	$ 1,708	1,969,059	(742,078)	1,228,714	112,138
Beginning balance of units (shares) at Dec. 31, 2016											25,050,000	199,085,000
Beginning balance at Dec. 31, 2016									1,341,179	1,329,076	$ 565,212		7,781	756,083	12,103
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	117,963				84,476	84,476	33,487		117,963	92,697	33,669		607	58,421	25,266
Dividends/Distributions declared - common stock/units	(136,021)				(136,021)	(136,021)			(159,724)	(159,724)			(1,600)	(158,124)		(3,429)
Dividends/Distributions declared - preferred stock/units	(33,669)				(33,669)	(33,669)			(33,669)	(33,669)	$ (33,669)
Issuance of common stock and restricted common stock	$ 474		3	471		474
Issuances of common units (shares)	342,008											342,000
Issuances of common units									474	474				474
Redemptions of Operating Partnership common units	$ (593)						(593)
Redemptions of common units (shares)												(73,000)
Redemptions of common units									(593)	(593)				(593)
Cancellation of restricted common stock/units (shares)	(37,758)											(38,000)
Cancellation of restricted common stock/units	$ (327)			(327)		(327)			(327)	(327)				(327)
Performance stock units	1,115			1,115		1,115			1,115	1,115			11	1,104
Amortization of deferred compensation	3,135			3,135		3,135			3,135	3,135			32	3,103
Allocation of partners' capital									(2,259)	(2,259)			(68)	(2,191)		2,224
Adjustment for noncontrolling interests	(2,222)			(5,635)		(5,635)	3,413	2,224
Adjustment to record redeemable noncontrolling interests at redemption value	4,195			3,629		3,629	566	(4,196)	4,195	4,195			43	4,152		(4,196)
Deconsolidation of investment	(2,232)						(2,232)		(2,232)						(2,232)
Contributions from noncontrolling interests	263						263		263						263
Distributions to noncontrolling interests	(48,477)						(48,477)	(3,429)	(24,774)						(24,774)
Ending balance at Sep. 30, 2017	1,244,456	25	1,711	1,971,447	(827,292)	1,145,891	98,565
Ending balance of units (shares) at Sep. 30, 2017											25,050,000	199,316,000
Ending balance at Sep. 30, 2017									1,244,746	1,234,120	$ 565,212		6,806	662,102	10,626
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of accounting change | Accounting Standards Update 2016-16	11,433				11,433	11,433			11,433	11,433			117	11,316
Cumulative effect of accounting change | Accounting Standard Update 2014-09 and Accounting Standard Update 2017-05	58,947				58,947	58,947			58,947	58,947			605	58,342
Beginning balance of redeemable noncontrolling partnership interests at Dec. 31, 2017	8,835							8,835	8,835							8,835
Redeemable Noncontrolling Interests
Net income (loss)								(515)								(515)
Distributions declared - common units	(103,597)				(103,597)	(103,597)			(121,643)	(121,643)			(1,207)	(120,436)		(3,429)
Adjustment for noncontrolling interests	(3,033)			(15,329)		(15,329)	12,296	3,033
Allocation of partners' capital									(3,075)	(3,075)			(81)	(2,994)		3,033
Adjustment to record redeemable interests at redemption value	1,696			1,474		1,474	222	(1,696)	1,696	1,696			17	1,679		(1,696)
Distributions to noncontrolling interests	(23,439)						(23,439)	(3,429)	(5,392)						(5,392)
Ending balance of redeemable noncontrolling partnership interests at Sep. 30, 2018	6,228							6,228	6,228							6,228
Beginning balance at Dec. 31, 2017	1,236,478	25	1,711	1,974,537	(836,269)	1,140,004	96,474
Beginning balance of units (shares) at Dec. 31, 2017											25,050,000	199,297,000
Beginning balance at Dec. 31, 2017									1,236,768	1,227,067	$ 565,212		6,735	655,120	9,701
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(33,093)				(24,261)	(24,261)	(8,832)		(33,093)	(32,724)	33,669		(682)	(65,711)	(369)
Dividends/Distributions declared - common stock/units	(103,597)				(103,597)	(103,597)			(121,643)	(121,643)			(1,207)	(120,436)		(3,429)
Dividends/Distributions declared - preferred stock/units	(33,669)				(33,669)	(33,669)			(33,669)	(33,669)	$ (33,669)
Issuance of common stock and restricted common stock	817		7	810		817
Conversion of 915,338 Operating Partnership common units into shares of common stock	$ 0		9	3,050		3,059	(3,059)
Issuances of common units (shares)	716,290											715,000
Issuances of common units									817	817				817
Redemptions of Operating Partnership common units	$ (2,246)						(2,246)
Redemptions of common units (shares)												(527,000)
Redemptions of common units									(2,246)	(2,246)				(2,246)
Cancellation of restricted common stock/units (shares)	(56,533)											(57,000)
Cancellation of restricted common stock/units	$ (249)			(249)		(249)			(249)	(249)				(249)
Performance stock units	993			993		993			993	993			10	983
Forfeiture of performance stock units	(250)			(250)		(250)			(250)	(250)			(3)	(247)
Amortization of deferred compensation	2,846			2,846		2,846			2,846	2,846			29	2,817
Allocation of partners' capital									(3,075)	(3,075)			(81)	(2,994)		3,033
Adjustment for noncontrolling interests	(3,033)			(15,329)		(15,329)	12,296	3,033
Adjustment to record redeemable noncontrolling interests at redemption value	1,696			1,474		1,474	222	(1,696)	1,696	1,696			17	1,679		$ (1,696)
Contributions from noncontrolling interests	7,859						7,859		7,859						7,859
Distributions to noncontrolling interests	(23,439)						(23,439)	$ (3,429)	(5,392)						(5,392)
Ending balance at Sep. 30, 2018	$ 1,121,493	$ 25	$ 1,727	$ 1,967,882	$ (927,416)	$ 1,042,218	$ 79,275
Ending balance of units (shares) at Sep. 30, 2018											25,050,000	199,428,000
Ending balance at Sep. 30, 2018									$ 1,121,742	$ 1,109,943	$ 565,212		$ 5,540	$ 539,191	$ 11,799

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Equity/Capital (Parenthetical)	9 Months Ended
	Sep. 30, 2018shares
Statement of Stockholders' Equity [Abstract]
Issuances of common and restricted stock, shares (shares)	716,290
Cancellation of restricted common stock/units (shares)	56,533
Stock converted (shares)	915,338

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended			9 Months Ended			12 Months Ended
		Sep. 30, 2018		Sep. 30, 2017	Sep. 30, 2018		Sep. 30, 2017	Dec. 31, 2017		Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)		$ (2,971)		$ 9,299	$ (33,608)		$ 118,444
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization					217,261		225,461
Net amortization of deferred financing costs, debt premiums and discounts					5,451		2,904
Net amortization of intangible lease assets and liabilities					198		(1,235)
Gain on sales of real estate assets					(15,998)		(86,904)
(Gain) loss on investments		0		354	(387)		6,197
Write-off of development projects					377		5,151
Share-based compensation expense					4,310		4,569
Loss on impairment		14,600		24,935	84,644		71,401	$ 67,532
Gain on extinguishment of debt					0		(30,927)
Equity in earnings of unconsolidated affiliates		(1,762)		(4,706)	(9,869)		(16,404)
Distributions of earnings from unconsolidated affiliates					12,574		16,361
Provision for doubtful accounts					3,273		3,353
Change in deferred tax accounts					(2,706)		2,911
Changes in:
Tenant and other receivables					3,493		(4,893)
Other assets					(4,640)		(12,368)
Accounts payable and accrued liabilities					16,034		32,929
Net cash provided by operating activities					280,407		336,950
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to real estate assets					(107,981)		(149,302)
Acquisitions of real estate assets					(3,301)		(79,799)
Proceeds from sales of real estate assets					70,419		201,291
Proceeds from disposal of investment					0		9,000
Additions to mortgage and other notes receivable					0		(4,118)
Payments received on mortgage and other notes receivable					775		3,443
Additional investments in and advances to unconsolidated affiliates					(2,243)		(17,199)
Distributions in excess of equity in earnings of unconsolidated affiliates					33,909		15,743
Changes in other assets					(5,903)		(14,471)
Net cash used in investing activities					(14,325)		(35,412)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from mortgage and other indebtedness					530,679		1,097,006
Principal payments on mortgage and other indebtedness					(649,904)		(1,159,144)
Additions to deferred financing costs					(238)		(5,003)
Prepayment fees on extinguishment of debt					0		(8,871)
Proceeds from issuances of common stock					117		150
Purchases of noncontrolling interests in the Operating Partnership					(2,246)		(593)
Contributions from noncontrolling interests					7,859		263
Payment of tax withholdings for restricted stock awards					(271)		(322)
Distributions to noncontrolling interests					(27,156)		(51,925)
Dividends paid to holders of preferred stock					(33,669)		(33,669)
Dividends paid to common shareholders					(103,280)		(135,941)
Net cash used in financing activities					(278,109)		(298,049)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH					(12,027)		3,489
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period					68,172		65,069	65,069
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period		56,145		68,558	56,145		68,558	68,172
Reconciliation from condensed consolidated statements of cash flows to condensed consolidated balance sheets:
Cash and cash equivalents		20,695	[1]	31,351	20,695	[1]	31,351	32,627	[2]
Restricted cash
Restricted cash										$ 4,681	$ 944
Mortgage escrows										30,769	36,263
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period		56,145		68,558	68,172		65,069	65,069		56,145	68,558
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized					136,301		150,816
CBL & Associates Limited Partnership
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)		(2,971)		9,299	(33,608)		118,444
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization					217,261		225,461
Net amortization of deferred financing costs, debt premiums and discounts					5,451		2,904
Net amortization of intangible lease assets and liabilities					198		(1,235)
Gain on sales of real estate assets					(15,998)		(86,904)
(Gain) loss on investments		0		354	(387)		6,197
Write-off of development projects					377		5,151
Share-based compensation expense					4,310		4,569
Loss on impairment		14,600		24,935	84,644		71,401
Gain on extinguishment of debt					0		(30,927)
Equity in earnings of unconsolidated affiliates		(1,762)		(4,706)	(9,869)		(16,404)
Distributions of earnings from unconsolidated affiliates					12,569		16,362
Provision for doubtful accounts					3,273		3,353
Change in deferred tax accounts					(2,706)		2,911
Changes in:
Tenant and other receivables					3,493		(4,893)
Other assets					(4,640)		(12,368)
Accounts payable and accrued liabilities					16,039		32,935
Net cash provided by operating activities					280,407		336,957
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to real estate assets					(107,981)		(149,302)
Acquisitions of real estate assets					(3,301)		(79,799)
Proceeds from sales of real estate assets					70,419		201,291
Proceeds from disposal of investment					0		9,000
Additions to mortgage and other notes receivable					0		(4,118)
Payments received on mortgage and other notes receivable					775		3,443
Additional investments in and advances to unconsolidated affiliates					(2,243)		(17,199)
Distributions in excess of equity in earnings of unconsolidated affiliates					33,909		15,743
Changes in other assets					(5,903)		(14,471)
Net cash used in investing activities					(14,325)		(35,412)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from mortgage and other indebtedness					530,679		1,097,006
Principal payments on mortgage and other indebtedness					(649,904)		(1,159,144)
Additions to deferred financing costs					(238)		(5,003)
Prepayment fees on extinguishment of debt					0		(8,871)
Proceeds from issuances of common stock					117		150
Redemptions of common units					(2,246)		(593)
Contributions from noncontrolling interests					7,859		263
Payment of tax withholdings for restricted stock awards					(271)		(322)
Distributions to noncontrolling interests					(8,821)		(28,203)
Dividends paid to holders of preferred stock					(33,669)		(33,669)
Dividends paid to common shareholders					(121,615)		(159,663)
Net cash used in financing activities					(278,109)		(298,049)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH					(12,027)		3,496
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period					68,172		65,061	65,061
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period		56,145		68,557	56,145		68,557	68,172
Reconciliation from condensed consolidated statements of cash flows to condensed consolidated balance sheets:
Cash and cash equivalents		20,695		31,350	20,695		31,350	32,627	[3]
Restricted cash
Restricted cash	[4]									4,681	944
Mortgage escrows	[4]									30,769	36,263
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period		$ 56,145		$ 68,557	68,172		65,061	$ 65,061		$ 56,145	$ 68,557
SUPPLEMENTAL INFORMATION:
Cash paid for interest, net of amounts capitalized					$ 136,301		$ 150,816
[1]	Included in intangible lease assets and other assets in the condensed consolidated balance sheets.
[2]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.
[3]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can only be used to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Operating Partnership. See Note 6.
[4]	Included in intangible lease assets and other assets in the condensed consolidated balance sheets.

Organization and Basis of Prese

Organization and Basis of Presentation	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Unless stated otherwise or the context otherwise requires, references to the "Company" mean CBL & Associates Properties, Inc. and its subsidiaries. References to the "Operating Partnership" mean CBL & Associates Limited Partnership and its subsidiaries. CBL & Associates Properties, Inc. (“CBL”), a Delaware corporation, is a self-managed, self-administered, fully-integrated real estate investment trust (“REIT”) that is engaged in the ownership, development, acquisition, leasing, management and operation of regional shopping malls, open-air and mixed-use centers, outlet centers, associated centers, community centers and office properties. Its properties are located in 26 states, but are primarily in the southeastern and midwestern United States. CBL conducts substantially all of its business through CBL & Associates Limited Partnership (the “Operating Partnership”), which is a variable interest entity ("VIE"). The Operating Partnership consolidates the financial statements of all entities in which it has a controlling financial interest or where it is the primary beneficiary of a VIE. As of September 30, 2018 , the Operating Partnership owned interests in the following properties: Other Properties Malls (1) Associated Centers Community Centers Office Buildings/Other Total Consolidated properties 59 20 3 5 (2) 87 Unconsolidated properties (3) 8 3 4 1 16 Total 67 23 7 6 103 (1) Category consists of regional malls, open-air centers and outlet centers (including one mixed-use center). (2) Includes CBL's two corporate office buildings. (3) The Operating Partnership accounts for these investments using the equity method because one or more of the other partners have substantive participating rights. At September 30, 2018 , the Operating Partnership had interests in the following properties under development: Consolidated Properties Unconsolidated Properties Malls All Other Malls All Other Development — — — 2 Redevelopments 8 — 1 — CBL is the 100% owner of two qualified REIT subsidiaries, CBL Holdings I, Inc. and CBL Holdings II, Inc. At September 30, 2018 , CBL Holdings I, Inc., the sole general partner of the Operating Partnership, owned a 1.0% general partner interest in the Operating Partnership and CBL Holdings II, Inc. owned an 85.6% limited partner interest for a combined interest held by CBL of 86.6% . The noncontrolling interest in the Operating Partnership is held by CBL & Associates, Inc., its shareholders and affiliates and certain senior officers of the Company (collectively "CBL's Predecessor"), all of which contributed their interests in certain real estate properties and joint ventures to the Operating Partnership in exchange for a limited partner interest when the Operating Partnership was formed in November 1993, and by various third parties. At September 30, 2018 , CBL’s Predecessor owned a 9.1% limited partner interest and third parties owned a 4.3% limited partner interest in the Operating Partnership. CBL's Predecessor also owned 4.0 million shares of CBL’s common stock at September 30, 2018 , for a total combined effective interest of 11.1% in the Operating Partnership. The Operating Partnership conducts the Company’s property management and development activities through its wholly owned subsidiary, CBL & Associates Management, Inc. (the “Management Company”), to comply with certain requirements of the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”). The accompanying condensed consolidated financial statements are unaudited; however, they have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the disclosures required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting solely of normal recurring matters) necessary for a fair presentation of the financial statements for these interim periods have been included. All intercompany transactions have been eliminated. The results for the interim period ended September 30, 2018 are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2017 . Reclassifications Certain reclassifications have been made to amounts in the Company's prior-year financial statements to conform to the current period presentation. The Company reclassified certain amounts related to restricted cash in its condensed consolidated statements of cash flows for the nine months ended September 30, 2017 upon the adoption of the Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU") 2016-18, Restricted Cash ("ASU 2016-18") in the fourth quarter of 2017, which required the change in restricted cash to be reported with cash and cash equivalents when reconciling beginning and ending amounts on the condensed consolidated statements of cash flows. The guidance was applied retrospectively to the prior period presented. As a result, restricted cash reductions of $1,261 , previously included in cash flows from investing activities, were reclassified to cash flows from financing activities to reflect $7,650 of principal payments on mortgage and other indebtedness and the remaining $8,911 difference was reclassified to the beginning-of-period and end-of-period total amounts on the condensed consolidated statement of cash flows for the nine months ended September 30, 2017.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Guidance Adopted Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2014-09, Revenue from Contracts with Customers , and related subsequent amendments January 1, 2018 - Modified Retrospective (applied to contracts not completed as of the implementation date) The objective of this guidance is to enable financial statement users to better understand and analyze revenue by replacing transaction and industry-specific guidance with a more principles-based approach to revenue recognition. The core principle is that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that the entity expects to be entitled to in exchange for those goods or services. The guidance also requires additional disclosure about the nature, timing and uncertainty of revenue and cash flows arising from customer contracts. The Company expects the adoption of the new guidance to be immaterial to its net income on an ongoing basis as the majority of the Company’s revenues relate to leasing. See Note 3 for further details and the cumulative adjustment recorded. ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory January 1, 2018 - Modified Retrospective The guidance requires an entity to recognize the income tax consequences of intercompany sales or transfers of assets, other than inventory, when the sale or transfer occurs. The Company recorded a cumulative effect adjustment of $11,433 to retained earnings as of January 1, 2018 related to certain 2017 asset sales from several of the Company's consolidated subsidiaries to the Management Company. ASU 2017-05, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets January 1, 2018 - Modified Retrospective This guidance applies to the partial sale or transfer of nonfinancial assets, including real estate assets, to unconsolidated joint ventures and requires 100% of the gain to be recognized for nonfinancial assets transferred to an unconsolidated joint venture and any noncontrolling interest received in such nonfinancial assets to be measured at fair value. See Note 3 for further details including the impact of adoption and the cumulative adjustment recorded. Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2017-09, Scope of Modification Accounting January 1, 2018 - Prospective The guidance clarifies the types of changes to the terms or conditions of a share-based payment award to which an entity would be required to apply modification accounting. The guidance did not have a material impact on the Company's condensed consolidated financial statements. Accounting Guidance Not Yet Effective Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2016-02, Leases , and related subsequent amendments January 1, 2019 - Modified Retrospective (electing optional transition method to apply at adoption date and record cumulative-effect adjustment as of January 1, 2019) The objective of the leasing guidance is to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to recognize a right-of-use asset and corresponding lease liability on the balance sheet for all leases with terms greater than 12 months. The guidance applied by a lessor is substantially similar to existing GAAP and the Company expects substantially all leases will continue to be classified as operating leases under the new guidance. The Company expects to expense certain deferred lease costs due to the narrowed definition of indirect costs that may be capitalized. Of the $1,456 in deferred lease costs recorded in 2017, approximately $183 related to legal costs which would not be capitalized under the new guidance. The Company completed an inventory of its leases in which it is a lessee and expects to record right-of-use assets and corresponding lease liabilities for ground leases. The Company has 10 ground lease arrangements in which it is the lessee for land. As of September 30, 2018, these ground leases have future contractual payments of approximately $14,767 with maturity dates ranging from February 2022 to July 2089. Practical expedients and accounting policy elections: The Company plans to elect a package of practical expedients pursuant to which it will not reassess contracts to determine if they contain leases, will not reassess lease classification and will not reassess capitalization of initial direct costs related to expired or existing leases as of the adoption date. The Company also plans to use the land easements practical expedient and apply the short-term lease policy election to leases 12 months or less at inception. The Company expects to adopt the practical expedient which allows lessors to combine lease and non-lease components if certain conditions are met. The majority of the Company's revenues will continue to be classified as leasing revenues. The Company is assessing the potential impact the guidance may have on its condensed consolidated financial statements and related disclosures. ASU 2016-13, Measurement of Credit Losses on Financial Instruments January 1, 2020 - Modified Retrospective The guidance replaces the current incurred loss impairment model, which reflects credit events, with a current expected credit loss model, which recognizes an allowance for credit losses based on an entity's estimate of contractual cash flows not expected to be collected. The Company is evaluating the impact that this update may have on its condensed consolidated financial statements and related disclosures. Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract January 1, 2020 - Prospective The guidance addresses diversity in practice in accounting for the costs of implementation activities in a cloud computing arrangement that is a service contract. Under the guidance, the Company is to follow Subtopic 350-40 on internal-use software to determine which implementation costs to capitalize and which to expense. The guidance also requires an entity to expense capitalized implementation costs over the term of the hosting arrangement and include that expense in the same line item as the fees associated with the service element of the arrangement. The Company does not expect the adoption of this guidance will have a material impact on its condensed consolidated financial statements or disclosures.

Revenues

Revenues	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Adoption of ASU 2014-09, and all related subsequent amendments, and ASU 2017-05 The Company adopted ASC 606 (which includes ASU 2014-09 and all related subsequent amendments) on January 1, 2018 and applied the guidance to contracts that were not complete as of January 1, 2018. The cumulative effect of adopting ASC 606 included an opening adjustment of $196 to retained earnings as of January 1, 2018 in the accounts noted below. Historical amounts for prior periods were not adjusted and will continue to be reported using the guidance in ASC 605, Revenue Recognition . Sales of real estate assets are accounted for under ASC 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets , which provides for revenue recognition based on the transfer of control. There should be no change in revenue recognition for sales in which the Company has no continuing involvement. ASU 2017-05 addresses revenue recognition related to property sales in which the Company has continuing involvement and may require full gain recognition. In its adoption of ASU 2017-05, the Company identified one unconsolidated affiliate, CBL/T-C, LLC, in which the Company recorded a partial sale of real estate assets in 2011, and recorded a cumulative effect adjustment that represents a gain of $57,850 as of January 1, 2018. Additionally, in conjunction with the transfer of land in the formation of a new joint venture in 2017, the Company recorded $901 related to this transaction as a cumulative effect adjustment as of January 1, 2018. See Note 2 for additional information about these accounting standards. Contract Balances A summary of the Company's contract assets activity during the nine months ended September 30, 2018 is presented below: Contract Assets Balance as of January 1, 2018 (1) $ 460 Tenant openings (375 ) Executed leases 525 Balance as of September 30, 2018 $ 610 (1) In conjunction with the initial entry to record contract assets, $166 was also recorded in investments in unconsolidated affiliates in the condensed consolidated balance sheets to eliminate the Company's portion related to two unconsolidated affiliates. There was no change to the $98 contract liability, recorded on January 1, 2018, during the nine months ended September 30, 2018. The Company has the following contract balances as of September 30, 2018 : As of September 30, 2018 Expected Settlement Period Description Financial Statement Line Item 2018 2019 2020 2023 Contract assets (1) Management, development and leasing fees $ 610 $ (213 ) $ (389 ) (4 ) $ (4 ) Contract liability (2) Other rents 98 (49 ) (49 ) — — (1) Represents leasing fees recognized as revenue in the period in which the lease is executed. Under third party and unconsolidated affiliates' contracts, the remaining 50% of the commissions are paid when the tenant opens. The tenant typically opens within a year, unless the project is in development. (2) Relates to a contract in which the Company received advance payments in the initial year of the multi-year contract. Revenues Sales taxes are excluded from revenues. The following table presents the Company's revenues disaggregated by revenue source: Three Months Ended Nine Months Ended September 30, 2018 Leasing revenues (1) $ 200,731 $ 621,016 Revenues from contracts with customers (ASC 606): Operating expense reimbursements (2) 1,682 6,062 Management, development and leasing fees (3) 2,658 8,022 Marketing revenues (4) 1,124 3,374 5,464 17,458 Other revenues 683 3,202 Total revenues $ 206,878 $ 641,676 (1) Revenues from leases are accounted for in accordance with ASC 840, Leases . (2) Includes $1,621 in the Malls segment and $61 in the All Other segment for the three months ended September 30, 2018 . Includes $5,660 in the Malls segment and $402 in the All Other segment for the nine months ended September 30, 2018 . See description below. (3) Included in All Other segment. (4) Includes $1,119 in the Malls segment and $5 in the All Other segment for the three months ended September 30, 2018 . Includes $3,362 in the Malls segment and $12 in the All Other segment for the nine months ended September 30, 2018 . See Note 9 for information on the Company's segments. Leasing Revenues The majority of the Company’s revenues are earned through the lease of space at its properties. Lease revenues include minimum rent, percentage rent, other rents and reimbursements from tenants for real estate taxes, insurance, common area maintenance ("CAM") and other operating expenses as provided in the lease agreements. Minimum rental revenue from operating leases is recognized on a straight-line basis over the initial terms of the related leases. Certain tenants are required to pay percentage rent if their sales volumes exceed thresholds specified in their lease agreements. Percentage rent is recognized as revenue when the thresholds are achieved and the amounts become determinable. The Company receives reimbursements from tenants for real estate taxes, insurance, CAM and other recoverable operating expenses as provided in the lease agreements. Tenant reimbursements are recognized when earned in accordance with the tenant lease agreements. Tenant reimbursements related to certain capital expenditures are billed to tenants over periods of 5 to 15 years and are recognized as revenue in accordance with the underlying lease terms. Revenue from Contracts with Customers Operating expense reimbursements Under operating and other agreements with third parties which own anchor or outparcel buildings at the Company's properties and pay no rent, the Company receives reimbursements for certain operating expenses such as utilities, ring road and parking lot maintenance, landscaping and other fees. These arrangements are primarily either set at a fixed rate with rate increases typically every five years or are on a variable (pro rata) basis, typically as a percentage of costs allocated based on square footage or sales. The majority of these contracts have an initial term and one or more extension options, which cumulatively approximate 50 or more years as historically the initial term and any extension options are reasonably certain of being executed by the third party. The standalone selling price of each performance obligation is determined based on the terms of the contract, which typically assign a price to each performance obligation that directly relates to the value the customer receives for the services being provided. Revenue is recognized as services are transferred to the customer. Variable consideration is based on historical experience and is generally recognized over time using the cost-to-cost method of measurement because it most accurately depicts the Company's performance in satisfying the performance obligation. The cumulative catch-up method is used to recognize any adjustments in variable consideration estimates. Under this method, any adjustment is recognized in the period it is identified. Management, development and leasing fees The Company earns revenue from contracts with third parties and unconsolidated affiliates for property management, leasing, development and other services. These contracts are accounted for on a month-to-month basis if the agreement does not contain substantive penalties for termination. The majority of the Company's contracts with customers are accounted for on a month-to-month basis. The standalone selling price of each performance obligation is determined based on the terms of the contract, which typically assign a price to each performance obligation that directly relates to the value the customer receives for the services being provided. These contracts generally are for the following: • Management fees - Management fees are charged as a percentage of revenues (as defined in the contract) and recognized as revenue over time as services are provided. • Leasing fees - Leasing fees are charged for newly executed leases and lease renewals and are recognized as revenue upon lease execution, when the performance obligation is completed. In cases for which the agreement specifies 50% of the leasing commission will be paid upon lease execution with the remainder paid when the tenant opens, the Company estimates the amount of variable consideration it expects to receive by evaluating the likelihood of tenant openings using the most likely amount method and records the amount as an unbilled receivable (contract asset). • Development fees - Development fees may be either set as a fixed rate in a separate agreement or be a variable rate based on a percentage of work costs. Variable consideration related to development fees is generally recognized over time using the cost-to-cost method of measurement because it most accurately depicts the Company's performance in satisfying the performance obligation. Contract estimates are based on various assumptions including the cost and availability of materials, anticipated performance and the complexity of the work to be performed. The cumulative catch-up method is used to recognize any adjustments in variable consideration estimates. Under this method, any adjustment is recognized in the period it is identified. Development and leasing fees received from an unconsolidated affiliate are recognized as revenue only to the extent of the third-party partner’s ownership interest. The Company's share of such fees are recorded as a reduction to the Company’s investment in the unconsolidated affiliate. Marketing revenues The Company earns marketing revenues from advertising and sponsorship agreements. These fees may be for tangible items in which the Company provides advertising services and creates signs and other promotional materials for the tenant or may be arrangements in which the customer sponsors a play area or event and receives specified brand recognition and other benefits over a set period of time. Revenue related to advertising services is recognized as goods and services are provided to the customer. Sponsorship revenue is recognized on a straight-line basis over the time period specified in the contract. Performance obligations A performance obligation is a promise in a contract to transfer a distinct good or service to a customer. If the contract does not specify the revenue by performance obligation, the Company allocates the transaction price to each performance obligation based on its relative standalone selling price. Such prices are generally determined using prices charged to customers or using the Company’s expected cost plus margin. Revenue is recognized as the Company’s performance obligations are satisfied over time, as services are provided, or at a point in time, such as leasing a space to earn a commission. Open performance obligations are those in which the Company has not fully or has partially provided the applicable good or services to the customer as specified in the contract. If consideration is received in advance of the Company’s performance, including amounts which are refundable, recognition of revenue is deferred until the performance obligation is satisfied or amounts are no longer refundable. Practical Expedients The Company does not disclose the value of open performance obligations for (1) contracts with an original expected duration of one year or less and (2) contracts for which the Company recognizes revenue at the amount to which the Company has the right to invoice, which primarily relate to services performed for certain operating expense reimbursements and management, leasing and development activities, as described above. Performance obligations related to pro rata operating expense reimbursements for certain noncancellable contracts are disclosed below. Outstanding Performance Obligations The Company has outstanding performance obligations related to certain noncancellable contracts with customers for which it will receive pro rata operating expense reimbursements for providing certain maintenance and other services as described above. As of September 30, 2018 , the Company expects to recognize these amounts as revenue over the following periods: Performance obligation Less than 5 years 5-20 years Over 20 years Total Pro rata operating expense reimbursements $ 981 $ 4,899 $ 33,581 $ 39,461 The Company evaluates its performance obligations each period and makes adjustments to reflect any known additions or cancellations. Performance obligations related to variable consideration which is based on sales is constrained.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company has categorized its financial assets and financial liabilities that are recorded at fair value into a hierarchy in accordance with ASC 820, Fair Value Measurements and Disclosure , ("ASC 820") based on whether the inputs to valuation techniques are observable or unobservable. The fair value hierarchy contains three levels of inputs that may be used to measure fair value as follows: Level 1 – Inputs represent quoted prices in active markets for identical assets and liabilities as of the measurement date. Level 2 – Inputs, other than those included in Level 1, represent observable measurements for similar instruments in active markets, or identical or similar instruments in markets that are not active, and observable measurements or market data for instruments with substantially the full term of the asset or liability. Level 3 – Inputs represent unobservable measurements, supported by little, if any, market activity, and require considerable assumptions that are significant to the fair value of the asset or liability. Market valuations must often be determined using discounted cash flow methodologies, pricing models or similar techniques based on the Company’s assumptions and best judgment. The asset or liability's fair value within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Under ASC 820, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability in an orderly transaction at the measurement date and under current market conditions. Valuation techniques used maximize the use of observable inputs and minimize the use of unobservable inputs and consider assumptions such as inherent risk, transfer restrictions and risk of nonperformance. Fair Value Measurements on a Recurring Basis The carrying values of cash and cash equivalents, receivables, accounts payable and accrued liabilities are reasonable estimates of their fair values because of the short-term nature of these financial instruments. Based on the interest rates for similar financial instruments, the carrying value of mortgage and other notes receivable is a reasonable estimate of fair value. The estimated fair value of mortgage and other indebtedness was $3,905,211 and $4,199,357 at September 30, 2018 and December 31, 2017 , respectively. The fair value was calculated using Level 2 inputs by discounting future cash flows for mortgage and other indebtedness using estimated market rates at which similar loans would be made currently. Fair Value Measurements on a Nonrecurring Basis The Company measures the fair value of certain long-lived assets on a nonrecurring basis, through quarterly impairment testing or when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. The Company considers both quantitative and qualitative factors in its impairment analysis of long-lived assets. Significant quantitative factors include historical and forecasted information for each property such as net operating income ("NOI"), occupancy statistics and sales levels. Significant qualitative factors used include market conditions, age and condition of the property and tenant mix. Due to the significant unobservable estimates and assumptions used in the valuation of long-lived assets that experience impairment, the Company classifies such long-lived assets under Level 3 in the fair value hierarchy. Level 3 inputs primarily consist of sales and market data, independent valuations and discounted cash flow models. Long-lived Assets Measured at Fair Value in 2018 The following table sets forth information regarding the Company's assets that are measured at fair value on a nonrecurring basis and related impairment charges for the nine months ended September 30, 2018 : Fair Value Measurements at Reporting Date Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Loss on Impairment Long-lived assets $ 42,100 $ — $ — $ 42,100 $ 84,644 During the nine months ended September 30, 2018 , the Company recognized an impairment of real estate of $84,644 related to two malls and undeveloped land: Impairment Date Property Location Segment Classification Loss on Impairment Fair Value March Janesville Mall (1) Janesville, WI Malls $ 18,061 $ — June Cary Towne Center (2) Cary, NC Malls 51,985 34,000 September Vacant land (3) D'Iberville, MS All Other 14,598 8,100 $ 84,644 $ 42,100 (1) The Company adjusted the book value of the mall to its estimated fair value based upon a net sales price of $17,640 in a signed contract with a third party buyer, adjusted to reflect estimated disposition costs. The mall was classified as held for sale as of June 30, 2018 until its sale in in July 2018. See Note 5 for additional information. (2) In June 2018, the Company was notified by IKEA that, as a result of a shift in its corporate strategy, it was terminating the contract to purchase land at the mall upon which it would develop and open a store. Under the terms of the interest-only non-recourse loan secured by the mall, the loan matured on the date the IKEA contract terminated if that date was prior to the scheduled maturity date of March 5, 2019. The Company engaged in conversations with the lender regarding a potential restructure of the loan. Based on the results of these conversations, the Company concluded that an impairment was required because it was unlikely to recover the asset's net carrying value through future cash flows. Management determined the fair value of Cary Towne Center using a discounted cash flow methodology. The discounted cash flow used assumptions including a 10 -year holding period, a capitalization rate of 12.0% and a discount rate of 13% . See Note 7 for information related to the mortgage loan. (3) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of land to its estimated value of $8,100 . The Company evaluated comparable land parcel transactions and determined that $8,100 was the land's estimated fair value. Long-lived Assets Measured at Fair Value in 2017 The following table sets forth information regarding the Company's assets, which are included in the Company's condensed consolidated balance sheets as of September 30, 2018 , that were measured at fair value on a nonrecurring basis and related impairment charges for the year ended December 31, 2017: Fair Value Measurements at Reporting Date Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Long-lived assets $ 81,350 $ — $ — $ 81,350 During the year ended December 31, 2017 , the Company wrote down the book value of the following properties: Impairment Date Property Location Segment Classification Loss on Impairment Fair Value June Acadiana Mall (1) Lafayette, LA Malls $ 43,007 $ 67,300 September Hickory Point Mall (2) Forsyth, IL Malls 24,525 14,050 $ 67,532 $ 81,350 (1) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of the mall to its estimated fair value of $67,300 . Management determined the fair value of Acadiana Mall using a discounted cash flow methodology. The discounted cash flow used assumptions including a holding period of 10 years, with a sale at the end of the holding period, a capitalization rate of 15.5% and a discount rate of 15.75% . The mall has experienced declining tenant sales and cash flows as a result of the downturn of the economy in its market area and was also impacted by an anchor's announcement in the second quarter 2017 that it would close its store later in 2017. The loan secured by Acadiana Mall matured in April 2017 and is in default. See Note 7 for additional information related to the mortgage loan. (2) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of the mall to its estimated fair value of $14,050 . Management determined the fair value of Hickory Point Mall using a discounted cash flow methodology. The discounted cash flow used assumptions including a holding period of 10 years, with a sale at the end of the holding period, a capitalization rate of 18.0% and a discount rate of 19.0% .

Dispositions and Held for Sale

Dispositions and Held for Sale	9 Months Ended
	Sep. 30, 2018
Business Combinations, Discontinued Operations and Disposal Groups [Abstract] [Abstract]
Dispositions and Held for Sale	Dispositions and Held for Sale The Company evaluates its disposals utilizing the guidance in ASU 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity . Based on its analysis, the Company determined that the dispositions described below do not meet the criteria for classification as discontinued operations and are not considered to be significant disposals based on its quantitative and qualitative evaluation. Thus, the results of operations of the properties described below, as well as any related gains or losses, are included in net income for all periods presented, as applicable. 2018 Dispositions Net proceeds realized from the 2018 dispositions listed below were used to reduce the outstanding balances on the Company's credit facilities unless otherwise noted. The following is a summary of the Company's 2018 dispositions: Sales Price Sales Date Property Property Type Location Gross Net Gain March Gulf Coast Town Center - Phase III All Other Ft. Myers, FL $ 9,000 $ 8,769 $ 2,236 July Janesville Mall (1) Malls Janesville, WI 18,000 17,783 — September Statesboro Crossing (2) All Other Statesboro, GA 21,500 10,532 3,215 September Prior sales adjustment Malls — — 92 $ 48,500 $ 37,084 $ 5,543 (1) The Company recognized a loss on impairment of $18,061 in 2018 when it adjusted the book value of the mall to its estimated fair value based upon a contract with a third party buyer, adjusted to reflect estimated disposition costs. See Note 4 . The mall was classified as held for sale as of June 30, 2018 until its sale in July 2018. (2) In conjunction with the sale of this 50/50 consolidated joint venture, the loan secured by the community center was retired. See Note 7 for more information. The Company received 100% of the net proceeds from the sale in accordance with the terms of the joint venture agreement. The Company also realized a gain of $10,455 primarily related to the sale of 10 outparcels and proceeds from several outparcels sold through eminent domain proceedings during the nine months ended September 30, 2018. 2018 Held for Sale Parkway Plaza was classified as held for sale at September 30, 2018 and the $14,807 on the condensed consolidated balance sheets represents the Company's related net investment in real estate assets at September 30, 2018, which approximates 0.3% of the Company's total assets as of September 30, 2018 . There are no other material assets or liabilities associated with this community center. The community center was sold subsequent to September 30, 2018 . See Note 14 for additional information.

Unconsolidated Affiliates and N

Unconsolidated Affiliates and Noncontrolling Interests	9 Months Ended
	Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Unconsolidated Affiliates and Noncontrolling Interests	Unconsolidated Affiliates and Noncontrolling Interests Unconsolidated Affiliates Although the Company had majority ownership of certain joint ventures during 2018 and 2017 , it evaluated the investments and concluded that the other partners or owners in these joint ventures had substantive participating rights, such as approvals of: • the pro forma for the development and construction of the project and any material deviations or modifications thereto; • the site plan and any material deviations or modifications thereto; • the conceptual design of the project and the initial plans and specifications for the project and any material deviations or modifications thereto; • any acquisition/construction loans or any permanent financings/refinancings; • the annual operating budgets and any material deviations or modifications thereto; • the initial leasing plan and leasing parameters and any material deviations or modifications thereto; and • any material acquisitions or dispositions with respect to the project. As a result of the joint control over these joint ventures, the Company accounts for these investments using the equity method of accounting. At September 30, 2018 , the Company had investments in 19 entities, which are accounted for using the equity method of accounting. The Company's ownership interest in these unconsolidated affiliates ranges from 10.0% to 65.0% . Of these entities, 14 are owned in 50/50 joint ventures. 2018 Activity - Unconsolidated Affiliates G&I VIII CBL Triangle LLC In September 2018, G&I VIII CBL Triangle LLC recognized an impairment of $89,826 to write down Triangle Town Center's net book value of $123,453 to its estimated fair value of approximately $33,600 . Management determined the fair value using a discounted cash flow methodology. The discounted cash flow used assumptions including a holding period of 10 years, with a sale at the end of the holding period, a capitalization rate of 15% and a discount rate of 15% . The mall has experienced declining tenant sales over the past few years and is facing challenges from store closures. The Company recorded $1,022 as its share of the loss on impairment recognized by the unconsolidated joint venture, which reduced the carrying value of the Company's investment in the joint venture to zero as of September 30, 2018. Self Storage at Mid Rivers, LLC In April 2018, the Company entered into a 50/50 joint venture, Self Storage at Mid Rivers, LLC, to develop a self-storage facility adjacent to Mid Rivers Mall. The Company recorded a $387 gain on investment related to land which it contributed to the joint venture. The unconsolidated affiliate is a VIE. See additional information in Variable Interest Entities below. In conjunction with the formation of the joint venture, the unconsolidated affiliate closed on a construction loan. See details below under 2018 Financings . Condensed Combined Financial Statements - Unconsolidated Affiliates Condensed combined financial statement information of the unconsolidated affiliates is as follows: September 30, December 31, ASSETS Investment in real estate assets $ 2,025,289 $ 2,089,262 Accumulated depreciation (658,163 ) (618,922 ) 1,367,126 1,470,340 Developments in progress 68,768 36,765 Net investment in real estate assets 1,435,894 1,507,105 Other assets 186,912 201,114 Total assets $ 1,622,806 $ 1,708,219 LIABILITIES Mortgage and other indebtedness, net $ 1,322,144 $ 1,248,817 Other liabilities 42,986 41,291 Total liabilities 1,365,130 1,290,108 OWNERS' EQUITY The Company 183,392 216,292 Other investors 74,284 201,819 Total owners' equity 257,676 418,111 Total liabilities and owners' equity $ 1,622,806 $ 1,708,219 Total for the Three Months 2018 2017 Total revenues $ 54,579 $ 57,395 Net income (loss) (1) $ (85,136 ) $ 7,868 (1) The Company's share of net income (loss) is $1,762 and $4,706 for the three months ended September 30, 2018 and 2017 , respectively. Total for the Nine Months 2018 2017 Total revenues $ 166,843 $ 175,250 Net income (loss) (1) $ (72,585 ) $ 24,980 (1) The Company's share of net income (loss) is $9,869 and $16,404 for the nine months ended September 30, 2018 and 2017 , respectively. Financings - Unconsolidated Affiliates All of the debt on the properties owned by the unconsolidated affiliates is non-recourse, except for debt secured by Ambassador Infrastructure, Hammock Landing, The Pavilion at Port Orange, The Shoppes at Eagle Point and the self-storage developments adjacent to EastGate Mall and Mid Rivers Mall. See Note 11 for a description of guarantees the Operating Partnership has issued related to these unconsolidated affiliates. 2018 Financings The Company's unconsolidated affiliates had the following loan activity in 2018: Date Property Stated Maturity Date Amount Financed or Extended April CoolSprings Galleria (1) 4.839% May 2028 $ 155,000 April Self-storage development - Mid Rivers Mall (2) LIBOR + 2.75% April 2023 5,987 May Hammock Landing - Phase I LIBOR + 2.25% February 2021 (3) 41,997 May Hammock Landing - Phase II LIBOR + 2.25% February 2021 (3) 16,217 May The Pavilion at Port Orange LIBOR + 2.25% February 2021 (3) 56,738 (1) CBL/T-C, LLC, a 50/50 joint venture, closed on a non-recourse loan. Proceeds from the loan were used to retire a $97,732 loan, which was due to mature in June 2018. See 2018 Loan Repayment below for more information. The Company's share of excess proceeds were used to reduce outstanding balances on its credit facilities. (2) Self Storage at Mid Rivers, LLC, a 50/50 joint venture, closed on a construction loan with a total borrowing capacity of up to $5,987 for the development of a climate controlled self-storage facility adjacent to Mid Rivers Mall in St. Peters, MO. The Operating Partnership has guaranteed 100% of the loan. See Note 11 for more information. (3) The loans were amended to extend the maturity dates to February 2021. Each loan has two one -year extension options for an outside maturity date of February 2023. The interest rate increased from a variable rate of LIBOR plus 2.0% . The Operating Partnership's guaranty also increased to 50% . 2018 Loan Repayment The loan, secured by the related unconsolidated property, was retired in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid April CoolSprings Galleria (1) 6.98% June 2018 $ 97,732 (1) The loan secured by the property was retired using a portion of the net proceeds from a $155,000 fixed-rate loan. See 2018 Financings above for more information. Noncontrolling Interests Noncontrolling interests consist of the following: As of September 30, 2018 December 31, 2017 Noncontrolling interests: Operating Partnership $ 67,476 $ 86,773 Other consolidated subsidiaries 11,799 9,701 $ 79,275 $ 96,474 Common Unit Activity In the second quarter of 2018, the Operating Partnership elected to pay cash of $2,246 to two holders of 526,510 common units of limited partnership interest in the Operating Partnership upon the exercise of their conversion rights. In the first quarter of 2018, the Company issued 915,338 shares of common stock to a holder of 915,338 common units of limited partnership interest in the Operating Partnership in connection with the exercise of the holder's contractual exchange rights. Variable Interest Entities In accordance with the guidance in ASU 2015-02, Amendments to the Consolidation Analysis , and ASU 2016-17, Interests Held Through Related Parties That Are under Common Control, the Operating Partnership and certain of its subsidiaries are deemed to have the characteristics of a VIE primarily because the limited partners of these entities do not collectively possess substantive kick-out or participating rights. The Company consolidates the Operating Partnership, which is a VIE, for which the Company is the primary beneficiary. The Company, through the Operating Partnership, consolidates all VIEs for which it is the primary beneficiary. Generally, a VIE is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership is considered a VIE when the majority of the limited partners unrelated to the general partner possess neither the right to remove the general partner without cause, nor certain rights to participate in the decisions that most significantly affect the financial results of the partnership. In determining whether the Company is the primary beneficiary of a VIE, the Company considers qualitative and quantitative factors, including, but not limited to: which activities most significantly impact the VIE’s economic performance and which party controls such activities; the amount and characteristics of the Company's investment; the obligation or likelihood for the Company or other investors to provide financial support; and the similarity with and significance to the Company's business activities and the business activities of the other investors. Consolidated VIEs As of September 30, 2018 , the Company had investments in 19 consolidated VIEs with ownership interests ranging from 50% to 95% . While the Company sold Statesboro Crossing in September 2018 (see Note 5 for additional information), Statesboro Crossing, LLC retained three outparcels which were not part of the sale and the consolidated joint venture is still classified as a VIE as of September 30, 2018. Jarnigan Road II, LLC was wholly-owned by Jarnigan Road LP. During the second quarter of 2018, its ownership was restructured such that it became a wholly-owned subsidiary of the Management Company and is now a separate reportable VIE. Unconsolidated VIEs The table below lists the Company's unconsolidated VIEs as of September 30, 2018 : Investment in Real Estate Joint Ventures and Partnerships Maximum Risk of Loss Ambassador Infrastructure, LLC (1) $ — $ 10,605 EastGate Storage, LLC (1) 1,215 6,500 G&I VIII CBL Triangle LLC (2) — — Self Storage at Mid Rivers, LLC (1) 1,061 5,987 Shoppes at Eagle Point, LLC (1) 17,519 36,400 (1) The debt is guaranteed by the Operating Partnership at 100% . See Note 11 for more information. (2) In conjunction with a loss on impairment recorded in September 2018, as described above, the Company wrote down its investment in the unconsolidated 90/10 joint venture to zero. The maximum risk of loss is limited to the basis, which is zero.

Mortgage and Other Indebtedness

Mortgage and Other Indebtedness, Net	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Mortgage and Other Indebtedness, Net	1.75x 2.6 x EBITDA to fixed charges (debt service) > 1.5x 2.3 x (1) The debt covenant limits the total amount of unsecured indebtedness the Company may have outstanding, which varies over time based on the ratio. Based on the Company’s outstanding unsecured indebtedness as of September 30, 2018 , the total amount available to the Company on its lines of credit was $697,627 . Therefore, the Company had additional availability of $491,436 based on the outstanding balances of the lines of credit as of September 30, 2018 . The agreements for the unsecured credit facilities and unsecured term loans described above contain default provisions customary for transactions of this nature (with applicable customary grace periods). Additionally, any default in the payment of any recourse indebtedness greater than or equal to $50,000 or any non-recourse indebtedness greater than $150,000 (for the Company's ownership share) of CBL, the Operating Partnership or any Subsidiary, as defined, will constitute an event of default under the agreements to the credit facilities. The credit facilities also restrict the Company's ability to enter into any transaction that could result in certain changes in its ownership or structure as described under the heading “Change of Control/Change in Management” in the agreements for the credit facilities. Senior Unsecured Notes The following presents the Company's compliance with key covenant ratios, as defined, of the Notes as of September 30, 2018 : Ratio Required Actual Total debt to total assets < 60% 52% Secured debt to total assets < 40% (1) 24% Total unencumbered assets to unsecured debt > 150% 215% Consolidated income available for debt service to annual debt service charge > 1.5x 2.7x (1) Secured debt to total assets must be less than 45% for the 2023 Notes and the 2024 Notes until January 1, 2020. The agreements for the Notes described above contain default provisions customary for transactions of this nature (with applicable customary grace periods). Additionally, any default in the payment of any recourse indebtedness greater than or equal to $50,000 of the Operating Partnership will constitute an event of default under the Notes. Mortgages on Operating Properties 2018 Financings The following table presents the loan, secured by the related consolidated property, that was entered into in 2018: Date Property Stated Interest Rate Maturity Date Amount Financed September The Outlet Shoppes at El Paso (1) 5.10% October 2028 $ 75,000 (1) The Company owns the property in a 75/25 consolidated joint venture. A portion of the proceeds from the non-recourse loan was used to retire a recourse loan secured by Phase II of The Outlet Shoppes at El Paso as described below. In August 2018, the Company exercised an option to extend the $27,446 loan secured by Hickory Point Mall to December 2019. Subsequent to September 30, 2018 , the Company closed on a construction loan for the redevelopment of the former Sears store at Brookfield Square. See Note 14 for more information. 2018 Loan Repayments The Company repaid the following loans, secured by the related consolidated properties, in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid (1) January Kirkwood Mall 5.75% April 2018 $ 37,295 August Statesboro Crossing (2) 4.24% June 2019 10,753 September The Outlet Shoppes at El Paso - Phase II (3) 4.73% December 2018 6,525 $ 54,573 (1) The Company retired the loans with borrowings from its credit facilities unless otherwise noted. (2) The loan was retired in conjunction with the sale of the property that secured the loan. See Note 5 for more information. (3) In July 2018, the loan secured by the property was extended from July 2018 to December 2018. It was subsequently retired when the joint venture closed on a new loan in September 2018 as described above. Other On June 4, 2018, t he Company was notified by IKEA that, as a result of a shift in its corporate strategy, it was terminating the contract to purchase land at Cary Towne Center, upon which it would develop and open a store. In accordance with the terms of the $43,716 interest-only non-recourse loan that is secured by the mall, the loan matured on the date of the IKEA contract termination and is in default as of September 30, 2018 . In August 2018, the Company and the lender executed a forbearance agreement. See Note 4 for information on the loss on impairment of real estate that the Company recorded in June 2018. Scheduled Principal Payments As of September 30, 2018 , the scheduled principal amortization and balloon payments of the Company’s consolidated debt, excluding extensions available at the Company’s option, on all mortgage and other indebtedness, including construction loans and lines of credit, are as follows: 2018 $ 411,284 2019 309,346 2020 661,816 2021 499,321 2022 432,546 Thereafter 1,706,132 4,020,445 Unamortized discounts (11,304 ) Unamortized deferred financing costs (15,476 ) Principal balance of loan secured by Lender Mall in foreclosure (1) 122,143 Total mortgage and other indebtedness, net $ 4,115,808 (1) Represents the principal balance of the non-recourse loan, secured by Acadiana Mall, which is in default. The loan matured in 2017. Of the $411,284 of scheduled principal payments in 2018, $43,716 relates to the principal balance of the operating property loan secured by Cary Towne Center, $350,000 represents the principal balance of one unsecured term loan and $17,568 relates to scheduled principal amortization. In August 2018, the Company entered into a forbearance agreement with the lender on the loan secured by Cary Towne Center, which is in default. Subsequent to September 30, 2018 , the unsecured term loan was extended. See Note 14 for more information. The Company is in the process of refinancing the $350,000 unsecured term loan that matures in October 2019. The refinancing will also include the $300,000 unsecured term loan, the $45,000 unsecured term loan and the three unsecured lines of credit with an aggregate capacity of $1,100,000 . The unsecured term loans and lines of credit will be converted from unsecured to secured facilities. The Company has agreed with Wells Fargo, as lead lender, on a pool of properties that will serve as collateral for the new secured term loans and secured lines of credit. The due diligence on these properties is ongoing and is expected to be completed by January 2019. Until due diligence is complete, the number and specific properties comprising the collateral pool may change. Wells Fargo will secure commitments from additional banks as participants in the new facilities; however, the composition of the lenders and the amount that each will hold will be subject to the final approval of each lender. As of the date of the filing of these financial statements, management has obtained the approval of the Board of Directors and has agreed to a non-binding term sheet with Wells Fargo that includes a longer-term maturity. It is expected that the refinancing will close in January 2019. In the unlikely event the secured facility is not closed, management intends to utilize availability under the existing unsecured lines of credit to retire the $350,000 unsecured term loan that matures in October 2019. The $300,000 and the $45,000 term loans have a final maturity of July 2022 and June 2022, respectively, and the combined $1,100,000 lines of credit have a final maturity of October 2020. The Company’s mortgage and other indebtedness had a weighted-average maturity of 3.9 years as of September 30, 2018 and 4.4 years as of December 31, 2017 ." id="sjs-B4">Mortgage and Other Indebtedness, Net Debt of the Company CBL has no indebtedness. Either the Operating Partnership or one of its consolidated subsidiaries, that it has a direct or indirect ownership interest in, is the borrower on all of the Company's debt. CBL is a limited guarantor of the Senior Unsecured Notes (the "Notes"), as described below, for losses suffered solely by reason of fraud or willful misrepresentation by the Operating Partnership or its affiliates. The Company also provides a similar limited guarantee of the Operating Partnership's obligations with respect to its unsecured credit facilities and three unsecured term loans as of September 30, 2018 . Debt of the Operating Partnership Net mortgage and other indebtedness consisted of the following: September 30, 2018 December 31, 2017 Amount Weighted- Average Interest Rate (1) Amount Weighted- Average Interest Rate (1) Fixed-rate debt: Non-recourse loans on operating properties $ 1,797,080 5.33% $ 1,796,203 5.33% Senior unsecured notes due 2023 (2) 447,309 5.25% 446,976 5.25% Senior unsecured notes due 2024 (3) 299,951 4.60% 299,946 4.60% Senior unsecured notes due 2026 (4) 616,436 5.95% 615,848 5.95% Total fixed-rate debt 3,160,776 5.37% 3,158,973 5.37% Variable-rate debt: Non-recourse loan on operating property (5) — —% 10,836 3.37% Recourse loans on operating properties 74,150 4.73% 101,187 4.00% Unsecured lines of credit 201,358 3.65% 93,787 2.56% Unsecured term loans 695,000 3.96% 885,000 2.81% Total variable-rate debt 970,508 3.95% 1,090,810 2.90% Total fixed-rate and variable-rate debt 4,131,284 5.04% 4,249,783 4.74% Unamortized deferred financing costs (15,476 ) (18,938 ) Total mortgage and other indebtedness, net $ 4,115,808 $ 4,230,845 (1) Weighted-average interest rate includes the effect of debt premiums and discounts, but excludes amortization of deferred financing costs. (2) The balance is net of an unamortized discount of $2,691 and $3,024 as of September 30, 2018 and December 31, 2017 , respectively. (3) The balance is net of an unamortized discount of $49 and $54 as of September 30, 2018 and December 31, 2017 , respectively. (4) The balance is net of an unamortized discount of $8,564 and $9,152 as of September 30, 2018 and December 31, 2017 , respectively. (5) The loan was retired in conjunction with the sale of the property in September 2018. See Mortgages on Operating Properties section below. Senior Unsecured Notes Description Issued (1) Amount Interest Rate (2) Maturity Date (3) 2023 Notes November 2013 $ 450,000 5.25% December 2023 2024 Notes October 2014 300,000 4.60% October 2024 2026 Notes December 2016 / September 2017 625,000 5.95% December 2026 (1) Issued by the Operating Partnership. CBL is a limited guarantor of the Operating Partnership's obligations under the Notes as described above. (2) Interest is payable semiannually in arrears. The interest rate for the 2024 Notes and the 2023 Notes is subject to an increase ranging from 0.25% to 1.00% from time to time if, on or after January 1, 2016 and prior to January 1, 2020, the ratio of secured debt to total assets of the Company, as defined, is greater than 40% but less than 45% . The required ratio of secured debt to total assets for the 2026 Notes is 40% or less. As of September 30, 2018 , this ratio was 24% as shown below. (3) The Notes are redeemable at the Operating Partnership's election, in whole or in part from time to time, on not less than 30 days and not more than 60 days' notice to the holders of the Notes to be redeemed. The 2026 Notes, the 2024 Notes and the 2023 Notes may be redeemed prior to September 15, 2026, July 15, 2024, and September 1, 2023, respectively, for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed, plus accrued and unpaid interest to, but not including, the redemption date and a make-whole premium calculated in accordance with the indenture. On or after the respective dates noted above, the Notes are redeemable for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed plus accrued and unpaid interest. If redeemed prior to the respective dates noted above, each issuance of Notes is redeemable at the treasury rate plus 0.50% , 0.35% and 0.40% for the 2026 Notes, the 2024 Notes and the 2023 Notes, respectively. Unsecured Lines of Credit The Company has three unsecured credit facilities that are used for retirement of secured loans, repayment of term loans, working capital, construction and acquisition purposes, as well as issuances of letters of credit. Each facility bears interest at LIBOR plus a spread of 0.875% to 1.550% based on the credit ratings for the Operating Partnership's senior unsecured long-term indebtedness. In August 2018, Standard & Poor's ("S&P") lowered its rating from BBB- to BB+, which caused the Company's interest rates to increase in September 2018. As of September 30, 2018, the Operating Partnership's interest rate is LIBOR plus 1.550% , based on the credit ratings of its unsecured long-term indebtedness of Ba1 from Moody's Investors Service ("Moody's"), BB+ from S&P and BB+ from Fitch Ratings ("Fitch"). Additionally, the Company pays an annual facility fee that ranges from 0.125% to 0.300% of the total capacity of each facility based on the credit ratings described above. As of September 30, 2018 , the annual facility fee was 0.30% . The three unsecured lines of credit had a weighted-average interest rate of 3.65% at September 30, 2018. The following summarizes certain information about the Company's unsecured lines of credit as of September 30, 2018: Total Capacity Total Outstanding Maturity Date Extended Maturity Date Wells Fargo - Facility A $ 500,000 (1) $ — October 2019 October 2020 (2) First Tennessee 100,000 (3) 47,695 October 2019 October 2020 (4) Wells Fargo - Facility B 500,000 (1) 153,663 (5) October 2020 $ 1,100,000 (6) $ 201,358 (1) Up to $30,000 of the capacity on this facility can be used for letters of credit. (2) The extension option is at the Company's election, subject to continued compliance with the terms of the facility, and has a one-time extension fee of 0.15% of the commitment amount of the credit facility. (3) Up to $20,000 of the capacity on this facility can be used for letters of credit. (4) The extension option on the facility is at the Company's election, subject to continued compliance with the terms of the facility, and has a one-time extension fee of 0.20% of the commitment amount of the credit facility. (5) There was $4,833 outstanding on this facility as of September 30, 2018 for letters of credit. (6) See debt covenant section below for limitation on excess capacity. Unsecured Term Loans The following summarizes certain information about the Company's unsecured term loans as of September 30, 2018: Total Outstanding Interest Rate Spread Interest Rate Maturity Date Extended Maturity Date Wells Fargo - $350,000 term loan $ 350,000 LIBOR + 1.75% 3.85% October 2018 October 2019 (1) Wells Fargo - $300,000 term loan 300,000 LIBOR + 2.00% 4.10% July 2020 July 2022 (2) First Tennessee - $45,000 term loan 45,000 LIBOR + 1.65% 3.75% June 2021 June 2022 $ 695,000 (1) Subsequent to September 30, 2018 , the Company exercised the extension option. See Note 14 . (2) The loan has two one -year extension options, the second of which is at the lender's discretion. Financial Covenants and Restrictions The agreements for the unsecured lines of credit, the Notes and unsecured term loans contain, among other restrictions, certain financial covenants including the maintenance of certain financial coverage ratios, minimum unencumbered asset and interest ratios, maximum secured indebtedness ratios, maximum total indebtedness ratios and limitations on cash flow distributions. The Company believes that it was in compliance with all financial covenants and restrictions at September 30, 2018 . Unsecured Lines of Credit and Unsecured Term Loans The following presents the Company's compliance with key covenant ratios, as defined, of the credit facilities and term loans as of September 30, 2018 : Ratio Required Actual Debt to total asset value < 60% 53 % Unsecured indebtedness to unencumbered asset value < 60% 49 % (1) Unencumbered NOI to unsecured interest expense > 1.75x 2.6 x EBITDA to fixed charges (debt service) > 1.5x 2.3 x (1) The debt covenant limits the total amount of unsecured indebtedness the Company may have outstanding, which varies over time based on the ratio. Based on the Company’s outstanding unsecured indebtedness as of September 30, 2018 , the total amount available to the Company on its lines of credit was $697,627 . Therefore, the Company had additional availability of $491,436 based on the outstanding balances of the lines of credit as of September 30, 2018 . The agreements for the unsecured credit facilities and unsecured term loans described above contain default provisions customary for transactions of this nature (with applicable customary grace periods). Additionally, any default in the payment of any recourse indebtedness greater than or equal to $50,000 or any non-recourse indebtedness greater than $150,000 (for the Company's ownership share) of CBL, the Operating Partnership or any Subsidiary, as defined, will constitute an event of default under the agreements to the credit facilities. The credit facilities also restrict the Company's ability to enter into any transaction that could result in certain changes in its ownership or structure as described under the heading “Change of Control/Change in Management” in the agreements for the credit facilities. Senior Unsecured Notes The following presents the Company's compliance with key covenant ratios, as defined, of the Notes as of September 30, 2018 : Ratio Required Actual Total debt to total assets < 60% 52% Secured debt to total assets < 40% (1) 24% Total unencumbered assets to unsecured debt > 150% 215% Consolidated income available for debt service to annual debt service charge > 1.5x 2.7x (1) Secured debt to total assets must be less than 45% for the 2023 Notes and the 2024 Notes until January 1, 2020. The agreements for the Notes described above contain default provisions customary for transactions of this nature (with applicable customary grace periods). Additionally, any default in the payment of any recourse indebtedness greater than or equal to $50,000 of the Operating Partnership will constitute an event of default under the Notes. Mortgages on Operating Properties 2018 Financings The following table presents the loan, secured by the related consolidated property, that was entered into in 2018: Date Property Stated Interest Rate Maturity Date Amount Financed September The Outlet Shoppes at El Paso (1) 5.10% October 2028 $ 75,000 (1) The Company owns the property in a 75/25 consolidated joint venture. A portion of the proceeds from the non-recourse loan was used to retire a recourse loan secured by Phase II of The Outlet Shoppes at El Paso as described below. In August 2018, the Company exercised an option to extend the $27,446 loan secured by Hickory Point Mall to December 2019. Subsequent to September 30, 2018 , the Company closed on a construction loan for the redevelopment of the former Sears store at Brookfield Square. See Note 14 for more information. 2018 Loan Repayments The Company repaid the following loans, secured by the related consolidated properties, in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid (1) January Kirkwood Mall 5.75% April 2018 $ 37,295 August Statesboro Crossing (2) 4.24% June 2019 10,753 September The Outlet Shoppes at El Paso - Phase II (3) 4.73% December 2018 6,525 $ 54,573 (1) The Company retired the loans with borrowings from its credit facilities unless otherwise noted. (2) The loan was retired in conjunction with the sale of the property that secured the loan. See Note 5 for more information. (3) In July 2018, the loan secured by the property was extended from July 2018 to December 2018. It was subsequently retired when the joint venture closed on a new loan in September 2018 as described above. Other On June 4, 2018, t he Company was notified by IKEA that, as a result of a shift in its corporate strategy, it was terminating the contract to purchase land at Cary Towne Center, upon which it would develop and open a store. In accordance with the terms of the $43,716 interest-only non-recourse loan that is secured by the mall, the loan matured on the date of the IKEA contract termination and is in default as of September 30, 2018 . In August 2018, the Company and the lender executed a forbearance agreement. See Note 4 for information on the loss on impairment of real estate that the Company recorded in June 2018. Scheduled Principal Payments As of September 30, 2018 , the scheduled principal amortization and balloon payments of the Company’s consolidated debt, excluding extensions available at the Company’s option, on all mortgage and other indebtedness, including construction loans and lines of credit, are as follows: 2018 $ 411,284 2019 309,346 2020 661,816 2021 499,321 2022 432,546 Thereafter 1,706,132 4,020,445 Unamortized discounts (11,304 ) Unamortized deferred financing costs (15,476 ) Principal balance of loan secured by Lender Mall in foreclosure (1) 122,143 Total mortgage and other indebtedness, net $ 4,115,808 (1) Represents the principal balance of the non-recourse loan, secured by Acadiana Mall, which is in default. The loan matured in 2017. Of the $411,284 of scheduled principal payments in 2018, $43,716 relates to the principal balance of the operating property loan secured by Cary Towne Center, $350,000 represents the principal balance of one unsecured term loan and $17,568 relates to scheduled principal amortization. In August 2018, the Company entered into a forbearance agreement with the lender on the loan secured by Cary Towne Center, which is in default. Subsequent to September 30, 2018 , the unsecured term loan was extended. See Note 14 for more information. The Company is in the process of refinancing the $350,000 unsecured term loan that matures in October 2019. The refinancing will also include the $300,000 unsecured term loan, the $45,000 unsecured term loan and the three unsecured lines of credit with an aggregate capacity of $1,100,000 . The unsecured term loans and lines of credit will be converted from unsecured to secured facilities. The Company has agreed with Wells Fargo, as lead lender, on a pool of properties that will serve as collateral for the new secured term loans and secured lines of credit. The due diligence on these properties is ongoing and is expected to be completed by January 2019. Until due diligence is complete, the number and specific properties comprising the collateral pool may change. Wells Fargo will secure commitments from additional banks as participants in the new facilities; however, the composition of the lenders and the amount that each will hold will be subject to the final approval of each lender. As of the date of the filing of these financial statements, management has obtained the approval of the Board of Directors and has agreed to a non-binding term sheet with Wells Fargo that includes a longer-term maturity. It is expected that the refinancing will close in January 2019. In the unlikely event the secured facility is not closed, management intends to utilize availability under the existing unsecured lines of credit to retire the $350,000 unsecured term loan that matures in October 2019. The $300,000 and the $45,000 term loans have a final maturity of July 2022 and June 2022, respectively, and the combined $1,100,000 lines of credit have a final maturity of October 2020. The Company’s mortgage and other indebtedness had a weighted-average maturity of 3.9 years as of September 30, 2018 and 4.4 years as of December 31, 2017 .

Mortgage and Other Notes Receiv

Mortgage and Other Notes Receivable	9 Months Ended
	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Mortgage and Other Notes Receivable	Mortgage and Other Notes Receivable Each of the Company’s mortgage notes receivable is collateralized by either a first mortgage, a second mortgage, or by an assignment of 100% of the partnership interests that own the real estate assets. Other notes receivable include amounts due from tenants or government-sponsored districts and unsecured notes received from third parties as whole or partial consideration for property or investments. Mortgage and other notes receivable consist of the following: As of September 30, 2018 As of December 31, 2017 Maturity Date Interest Rate Balance Interest Rate Balance Mortgages: Columbia Place Outparcel Feb 2022 5.00% $ 288 5.00% $ 302 One Park Place May 2022 5.00% 837 5.00% 1,010 Village Square (1) Sep 2018 4.00% 1,554 4.00% 1,596 Other (2) Dec 2016 - Jan 2047 4.73% - 9.50% 2,510 4.07% - 9.50% 2,510 5,189 5,418 Other Notes Receivable: ERMC Sep 2021 4.00% 2,354 4.00% 2,855 Southwest Theaters LLC Apr 2026 5.00% 628 5.00% 672 2,982 3,527 $ 8,171 $ 8,945 (1) The note was amended to extend the maturity date and restructure the monthly payment amount subsequent to September 30, 2018. See Note 14 for more information. (2) The $1,100 note with D'Iberville Promenade, LLC, with a maturity date of December 2016, is in default.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Segment Information	Segment Information The Company measures performance and allocates resources according to property type, which is determined based on certain criteria such as type of tenants, capital requirements, economic risks, leasing terms, and short and long-term returns on capital. Rental income and tenant reimbursements from tenant leases provide the majority of revenues from all segments. The Company's segment information for the three and nine months ended September 30, 2017 has been retrospectively revised from previously reported amounts to reflect a change in our reportable segments. The Company no longer separately presents quantitatively and qualitatively insignificant reportable segments. Malls represents the Company's only reportable segment and the All Other category is not significant. Information on the Company’s segments is presented as follows: Three Months Ended September 30, 2018 Malls All Other (1) Total Revenues (2) $ 188,440 $ 18,438 $ 206,878 Property operating expenses (3) (57,243 ) (3,669 ) (60,912 ) Interest expense (24,665 ) (30,529 ) (55,194 ) Other expense — (38 ) (38 ) Gain on sales of real estate assets 92 7,788 7,880 Segment profit (loss) $ 106,624 $ (8,010 ) 98,614 Depreciation and amortization expense (71,945 ) General and administrative expense (16,051 ) Interest and other income 283 Loss on impairment (14,600 ) Income tax provision (1,034 ) Equity in earnings of unconsolidated affiliates 1,762 Net loss $ (2,971 ) Capital expenditures (4) $ 38,512 $ 2,671 $ 41,183 Three Months Ended September 30, 2017 Malls All Other (1) Total Revenues (2) $ 205,020 $ 19,630 $ 224,650 Property operating expenses (3) (59,602 ) (4,520 ) (64,122 ) Interest expense (28,922 ) (24,991 ) (53,913 ) Other expense — (132 ) (132 ) Gain (loss) on sales of real estate assets (1,994 ) 3,377 1,383 Segment profit (loss) $ 114,502 $ (6,636 ) 107,866 Depreciation and amortization expense (71,732 ) General and administrative expense (13,568 ) Interest and other income (loss) (200 ) Gain on extinguishment of debt 6,452 Loss on impairment (24,935 ) Loss on investment (354 ) Income tax benefit 1,064 Equity in earnings of unconsolidated affiliates 4,706 Net income $ 9,299 Capital expenditures (4) $ 47,246 $ 1,035 $ 48,281 Nine Months Ended September 30, 2018 Malls All Other (1) Total Revenues (2) $ 585,097 $ 56,579 $ 641,676 Property operating expenses (3) (179,012 ) (11,795 ) (190,807 ) Interest expense (76,401 ) (86,763 ) (163,164 ) Other expense (84 ) (293 ) (377 ) Gain on sales of real estate assets 92 15,906 15,998 Segment profit (loss) $ 329,692 $ (26,366 ) 303,326 Depreciation and amortization expense (217,261 ) General and administrative expense (47,845 ) Nine Months Ended September 30, 2018 Malls All Other (1) Total Interest and other income 714 Loss on impairment (84,644 ) Gain on investment 387 Income tax benefit 1,846 Equity in earnings of unconsolidated affiliates 9,869 Net loss $ (33,608 ) Capital expenditures (4) $ 105,593 $ 10,063 $ 115,656 Nine Months Ended September 30, 2017 Malls All Other (1) Total Revenues (2) $ 632,830 $ 59,066 $ 691,896 Property operating expenses (3) (182,926 ) (11,989 ) (194,915 ) Interest expense (93,481 ) (71,698 ) (165,179 ) Other expense — (5,151 ) (5,151 ) Gain on sales of real estate assets 75,434 11,470 86,904 Segment profit (loss) $ 431,857 $ (18,302 ) 413,555 Depreciation and amortization expense (225,461 ) General and administrative expense (45,402 ) Interest and other income 1,235 Gain on extinguishment of debt 30,927 Loss on impairment (71,401 ) Loss on investment (6,197 ) Income tax benefit 4,784 Equity in earnings of unconsolidated affiliates 16,404 Net income $ 118,444 Capital expenditures (4) $ 126,290 $ 5,588 $ 131,878 Total Assets Malls All Other (1) Total September 30, 2018 $ 4,979,583 $ 511,436 $ 5,491,019 December 31, 2017 $ 5,152,789 $ 552,019 $ 5,704,808 (1) The All Other category includes associated centers, community centers, mortgage and other notes receivable, office buildings, self-storage facilities and the Management Company. (2) Management, development and leasing fees are included in the All Other category. See Note 3 for information on the Company's revenues disaggregated by revenue source for each of the above segments. (3) Property operating expenses include property operating, real estate taxes and maintenance and repairs. (4) Amounts include acquisitions of real estate assets and investments in unconsolidated affiliates. Developments in progress are included in the All Other category.

Earnings per Share and Earnings

Earnings per Share and Earnings per Unit	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Earnings per Share and Earnings per Unit	Earnings per Share and Earnings per Unit Earnings per Share of the Company Basic earnings per share (“EPS”) is computed by dividing net income (loss) attributable to common shareholders by the weighted-average number of common shares outstanding for the period. Diluted EPS assumes the issuance of common stock for all potential dilutive common shares outstanding. The limited partners’ rights to convert their noncontrolling interests in the Operating Partnership into shares of common stock are not dilutive. Due to a net loss for the nine month period ended September 30, 2018 , the computation of diluted EPS does not include contingently issuable shares due to their anti-dilutive nature. Had the Company reported net income for the nine months ended September 30, 2018 , the denominator for diluted EPS would have been 172,563,094 , including 137,094 contingently issuable shares related to performance stock unit ("PSU") awards. Earnings per Unit of the Operating Partnership Basic earnings per unit (“EPU”) is computed by dividing net income (loss) attributable to common unitholders by the weighted-average number of common units outstanding for the period. Diluted EPU assumes the issuance of common units for all potential dilutive common units outstanding. Due to a net loss for the nine month period ended September 30, 2018 , the computation of diluted EPU does not include contingently issuable units due to their anti-dilutive nature. Had the Operating Partnership reported net income for the nine months ended September 30, 2018 , the denominator for diluted EPU would have been 199,767,094 , including 137,094 contingently issuable units related to PSU awards.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Litigation The Company is currently involved in certain litigation that arises in the ordinary course of business, most of which is expected to be covered by liability insurance. Management makes assumptions and estimates concerning the likelihood and amount of any potential loss relating to these matters using the latest information available. The Company records a liability for litigation if an unfavorable outcome is probable and the amount of loss or range of loss can be reasonably estimated. If an unfavorable outcome is probable and a reasonable estimate of the loss is a range, the Company accrues the best estimate within the range. If no amount within the range is a better estimate than any other amount, the Company accrues the minimum amount within the range. If an unfavorable outcome is probable but the amount of the loss cannot be reasonably estimated, the Company discloses the nature of the litigation and indicates that an estimate of the loss or range of loss cannot be made. If an unfavorable outcome is reasonably possible and the estimated loss is material, the Company discloses the nature and estimate of the possible loss of the litigation. Based on current expectations, such matters, both individually and in the aggregate, are not expected to have a material adverse effect on the liquidity, results of operations, business or financial condition of the Company. Environmental Contingencies The Company evaluates potential loss contingencies related to environmental matters using the same criteria described above related to litigation matters. Based on current information, an unfavorable outcome concerning such environmental matters, both individually and in the aggregate, is considered to be reasonably possible. However, the Company believes its maximum potential exposure to loss would not be material to its results of operations or financial condition. The Company has a master insurance policy that provides coverage through 2022 for certain environmental claims up to $10,000 per occurrence and up to $50,000 in the aggregate, subject to deductibles and certain exclusions. At certain locations, individual policies are in place. Guarantees The Operating Partnership may guarantee the debt of a joint venture primarily because it allows the joint venture to obtain funding at a lower cost than could be obtained otherwise. This results in a higher return for the joint venture on its investment, and a higher return on the Operating Partnership’s investment in the joint venture. The Operating Partnership may receive a fee from the joint venture for providing the guaranty. Additionally, when the Operating Partnership issues a guaranty, the terms of the joint venture agreement typically provide that the Operating Partnership may receive indemnification from the joint venture partner or have the ability to increase its ownership interest. The guarantees expire upon repayment of the debt, unless noted otherwise. The following table represents the Operating Partnership's guarantees of unconsolidated affiliates' debt as reflected in the accompanying condensed consolidated balance sheets as of September 30, 2018 and December 31, 2017: As of September 30, 2018 Obligation Recorded to Unconsolidated Company's Outstanding Percentage Maximum Debt (1) 9/30/2018 12/31/2017 West Melbourne I, LLC - Phase I (2) 50% $ 41,737 50 % (3) $ 20,869 Feb-2021 (3) $ 209 $ 86 West Melbourne I, LLC - Phase II (2) 50% 16,097 50 % (3) 8,049 Feb-2021 (3) 80 33 Port Orange I, LLC 50% 56,366 50 % (3) 28,183 Feb-2021 (3) 282 116 Ambassador Infrastructure, LLC 65% 10,605 100 % 10,605 Aug-2020 106 177 Shoppes at Eagle Point, LLC 50% 32,679 100 % (4) 36,400 Oct-2020 (5) 364 364 EastGate Storage, LLC 50% 4,162 100 % (6) 6,500 Dec-2022 65 65 Self Storage at Mid Rivers, LLC (7) 50% 2,021 100 % 5,987 Apr-2023 60 — Total guaranty liability $ 1,166 $ 841 (1) Excludes any extension options. (2) The loan is secured by Hammock Landing - Phase I and Hammock Landing - Phase II, respectively. (3) The loan was amended in May 2018 to extend the maturity date and increase the guaranty from 20%. The loan has two one-year extension options for an outside maturity date of February 2023. See Note 6 for more information. (4) The guaranty will be reduced to 35% once construction is complete. (5) The loan has one two -year extension option, at the joint venture's election, for an outside maturity date of October 2022. (6) Once construction is complete, the guaranty will be reduced to 50% . The guaranty will be further reduced to 25% once certain debt and operational metrics are met. (7) The Company received a 1% fee for the guaranty when the loan was issued in April 2018. The guaranty will be reduced to 50% once construction is complete. The guaranty will be further reduced to 25% once certain debt and operational metrics are met. See Note 6 for additional information. The Company has guaranteed the lease performance of York Town Center, LP ("YTC"), an unconsolidated affiliate in which the Company owns a 50% interest, under the terms of an agreement with a third party that owns property as part of York Town Center. Under the terms of that agreement, YTC is obligated to cause performance of the third party’s obligations as landlord under its lease with its sole tenant, including, but not limited to, provisions such as co-tenancy and exclusivity requirements. Should YTC fail to cause performance, then the tenant under the third party landlord’s lease may pursue certain remedies ranging from rights to terminate its lease to receiving reductions in rent. The Company has guaranteed YTC’s performance under this agreement up to a maximum of $22,000 , which decreases by $800 annually until the guaranteed amount is reduced to $10,000 . The guaranty expires on December 31, 2020. The maximum guaranteed obligation was $13,200 as of September 30, 2018 . The Company entered into an agreement with its joint venture partner under which the joint venture partner has agreed to reimburse the Company 50% of any amounts it is obligated to fund under the guaranty. The Company did not include an obligation for this guaranty because it determined that the fair value of the guaranty was not material as of September 30, 2018 and December 31, 2017. Performance Bonds The Company has issued various bonds that it would have to satisfy in the event of non-performance. The total amount outstanding on these bonds was $17,309 and $16,998 at September 30, 2018 and December 31, 2017 , respectively.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2018
Share-based Compensation [Abstract]
Share-Based Compensation	Share-Based Compensation As of September 30, 2018 , the Company has outstanding awards under the CBL & Associates Properties, Inc. 2012 Stock Incentive Plan ("the 2012 Plan"), which was approved by the Company's shareholders in May 2012. The 2012 Plan permits the Company to issue stock options and common stock to selected officers, employees and non-employee directors of the Company up to a total of 10,400,000 shares. As the primary operating subsidiary of the Company, the Operating Partnership participates in and bears the compensation expense associated with the Company's share-based compensation plan. Restricted Stock Awards The Company may make restricted stock awards to independent directors, officers and its employees under the 2012 Plan. These awards are generally granted based on the performance of the Company and its employees. None of these awards have performance requirements other than a service condition of continued employment, unless otherwise provided. Compensation expense is recognized on a straight-line basis over the requisite service period. Share-based compensation expense related to the restricted stock awards was $787 and $812 for the three months ended September 30, 2018 and 2017 , respectively, and $3,263 and $3,175 for the nine months ended September 30, 2018 and 2017 , respectively. Share-based compensation cost capitalized as part of real estate assets was $36 and $94 for the three months ended September 30, 2018 and 2017 , respectively, and $260 and $308 for the nine months ended September 30, 2018 and 2017 , respectively. A summary of the status of the Company’s nonvested restricted stock awards as of September 30, 2018 , and changes during the nine months ended September 30, 2018 , is presented below: Shares Weighted-Average Grant Date Fair Value Nonvested at January 1, 2018 642,359 $ 13.23 Granted 693,064 $ 4.55 Vested (413,032 ) $ 9.64 Forfeited (8,852 ) $ 9.36 Nonvested at September 30, 2018 913,539 $ 8.30 As of September 30, 2018 , there was $5,443 of total unrecognized compensation cost related to nonvested stock awards granted under the plans, which is expected to be recognized over a weighted-average period of 2.6 years. Long-Term Incentive Program In 2015, the Company adopted a long-term incentive program ("LTIP") for its named executive officers, which consists of PSU awards and annual restricted stock awards, that may be issued under the 2012 Plan. The number of shares related to the PSU awards that each named executive officer may receive upon the conclusion of a three -year performance period is determined based on the Company's achievement of specified levels of long-term total stockholder return ("TSR") performance relative to the National Association of Real Estate Investment Trusts ("NAREIT") Retail Index, provided that at least a "Threshold" level must be attained for any shares to be earned. Beginning with the 2018 PSUs, two-thirds of the quantitative portion of the award over the performance period will be based on the achievement of TSR relative to the NAREIT Retail Index while the remaining one-third will be based on the achievement of absolute TSR metrics. To maintain compliance with the 200,000 share annual equity grant limit under the 2012 Plan, beginning with the 2018 PSU grant, to the extent that a grant of PSUs could result in the issuance of a number of shares of common stock at the conclusion of the performance period that, when coupled with the number of shares of time-vesting restricted stock granted in the same year the PSUs were granted, would exceed the annual limit, any such excess will be converted to a cash bonus award with a value equivalent to the number of shares of common stock constituting such excess times the average of the high and low trading prices reported for CBL's common stock on the date such shares would otherwise have been issuable. Any such portion of the value of the 2018 PSUs earned payable as a cash bonus will be subject to the same vesting provisions as the issuance of common stock pursuant to the PSUs and is not expected to be significant. In addition, to the extent any cash is to be paid, the cash will be paid first relative to the vesting schedule, ahead of the issuance of shares of common stock with respect to the balance of PSUs earned. Annual Restricted Stock Awards Under the LTIP, annual restricted stock awards consist of shares of time-vested restricted stock awarded based on a qualitative evaluation of the performance of the Company and the named executive officer during the fiscal year. Annual restricted stock awards under the LTIP, which are included in the totals reflected in the preceding table, vest 20% on the date of grant with the remainder vesting in four equal annual installments. Performance Stock Units A summary of the status of the Company’s PSU activity as of September 30, 2018 , and changes during the nine months ended September 30, 2018 , is presented below: PSUs Weighted-Average Grant Date Fair Value Outstanding at January 1, 2018 560,371 $ 5.91 2018 PSUs granted 741,977 $ 2.63 Forfeited (138,899 ) $ 4.22 Outstanding at September 30, 2018 (1) 1,163,449 $ 4.55 (1) None of the PSUs outstanding at September 30, 2018 were vested. Shares earned pursuant to the PSU awards vest 60% at the conclusion of the performance period while the remaining 40% of the PSU award vests 20% on each of the first two anniversaries thereafter. Compensation cost is recognized on a tranche-by-tranche basis using the accelerated attribution method. The resulting expense, for awards classified as equity, is recorded regardless of whether any PSU awards are earned as long as the required service period is met. The fair value of the potential cash component related to the 2018 PSUs is measured at each reporting period, using the same methodology as was used at the initial grant date, and classified as a liability on the condensed consolidated balance sheet as of September 30, 2018 with an adjustment to compensation expense. If the performance criterion is not satisfied at the end of the performance period for the 2018 PSUs, previously recognized compensation expense related to the liability-classified awards would be reversed as there would be no value at the settlement date. Share-based compensation expense related to the PSUs was $178 and $386 for the three months ended September 30, 2018 and 2017 , respectively, and $1,130 and $1,115 for the nine months ended September 30, 2018 and 2017 , respectively. Unrecognized compensation costs related to the PSUs was $3,141 as of September 30, 2018, which is expected to be recognized over a weighted-average period of 3.7 years. The following table summarizes the assumptions used in the Monte Carlo simulation pricing model related to the PSUs: 2018 PSUs 2017 PSUs 2016 PSUs Grant date February 12, 2018 February 7, 2017 February 10, 2016 Fair value per share on valuation date (1) $ 4.76 $ 6.86 $ 4.98 Risk-free interest rate (2) 2.36 % 1.53 % 0.92 % Expected share price volatility (3) 42.02 % 32.85 % 30.95 % (1) The value of the PSU awards is estimated on the date of grant using a Monte Carlo simulation model. The valuation consists of computing the fair value using CBL's simulated stock price as well as TSR over a three -year performance period. The award is modeled as a contingent claim in that the expected return on the underlying shares is risk-free and the rate of discounting the payoff of the award is also risk-free. The weighted-average fair value per share related to the 2018 PSUs classified as equity consists of 240,164 shares at a fair value of $3.13 (which relate to relative TSR) and 120,064 shares at a fair value of $1.63 per share (which relate to absolute TSR). The weighted-average fair value per share related to the 2017 PSUs consists of 115,082 shares at a fair value of $5.62 per share and 162,294 shares at a fair value of $7.74 per share. (2) The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury securities in effect as of the valuation date, which is the respective grant date listed above. (3) The computation of expected volatility was based on a blend of the historical volatility of CBL's shares of common stock based on annualized daily total continuous returns over a three -year period and implied volatility data based on the trailing month average of daily implied volatilities implied by stock call option contracts that were both closest to the terms shown and closest to the money.

Noncash Investing and Financing

Noncash Investing and Financing Activities	9 Months Ended
	Sep. 30, 2018
Supplemental Cash Flow Information [Abstract]
Noncash Investing and Financing Activities	Noncash Investing and Financing Activities The Company’s noncash investing and financing activities were as follows: Nine Months Ended 2018 2017 Accrued dividends and distributions payable $ 41,657 $ 54,375 Additions to real estate assets accrued but not yet paid 22,428 12,204 Conversion of Operating Partnership units for common stock (1) 3,059 — Deconsolidation upon contribution/assignment of interests in joint venture: (1) Decrease in real estate assets (587 ) (9,131 ) Increase in investment in unconsolidated affiliates 974 — Decrease in mortgage and other indebtedness — 2,466 Decrease in operating assets and liabilities — 1,286 Decrease in noncontrolling interest and joint venture interest — 2,232 Transfer of real estate assets in settlement of mortgage debt obligation: Decrease in real estate assets — (149,722 ) Decrease in mortgage and other indebtedness — 189,642 Decrease in operating assets and liabilities — (122 ) (1) See Note 6 for more information.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In October 2018, the Company closed on the sale of Parkway Plaza, located in Fort Oglethorpe, GA. The community center sold for a gross sales price of $16,500 . Net proceeds were used to reduce outstanding balances on the Company's unsecured lines of credit. In October 2018, the Company exercised its option to extend the $350,000 unsecured term loan to October 2019. The $1,554 mortgage note receivable secured by Village Square was amended in October 2018 to extend the maturity date to December 2018 and restructure the monthly payment amount. In October 2018, the Company closed on a $29,400 construction loan. The three -year loan bears interest at a variable rate of LIBOR plus 290 basis points. The loan has a one -year extension option for an outside maturity of October 2022. Funds from the loan will be used in the redevelopment of the former Sears location at Brookfield Square in Brookfield, WI.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Consolidation of Variable Interest Entity	CBL conducts substantially all of its business through CBL & Associates Limited Partnership (the “Operating Partnership”), which is a variable interest entity ("VIE"). The Operating Partnership consolidates the financial statements of all entities in which it has a controlling financial interest or where it is the primary beneficiary of a VIE.
Basis of Presentation	The accompanying condensed consolidated financial statements are unaudited; however, they have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the disclosures required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting solely of normal recurring matters) necessary for a fair presentation of the financial statements for these interim periods have been included. All intercompany transactions have been eliminated. The results for the interim period ended September 30, 2018 are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2017 .
Recent Accounting Pronouncements	Accounting Guidance Adopted Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2014-09, Revenue from Contracts with Customers , and related subsequent amendments January 1, 2018 - Modified Retrospective (applied to contracts not completed as of the implementation date) The objective of this guidance is to enable financial statement users to better understand and analyze revenue by replacing transaction and industry-specific guidance with a more principles-based approach to revenue recognition. The core principle is that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that the entity expects to be entitled to in exchange for those goods or services. The guidance also requires additional disclosure about the nature, timing and uncertainty of revenue and cash flows arising from customer contracts. The Company expects the adoption of the new guidance to be immaterial to its net income on an ongoing basis as the majority of the Company’s revenues relate to leasing. See Note 3 for further details and the cumulative adjustment recorded. ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory January 1, 2018 - Modified Retrospective The guidance requires an entity to recognize the income tax consequences of intercompany sales or transfers of assets, other than inventory, when the sale or transfer occurs. The Company recorded a cumulative effect adjustment of $11,433 to retained earnings as of January 1, 2018 related to certain 2017 asset sales from several of the Company's consolidated subsidiaries to the Management Company. ASU 2017-05, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets January 1, 2018 - Modified Retrospective This guidance applies to the partial sale or transfer of nonfinancial assets, including real estate assets, to unconsolidated joint ventures and requires 100% of the gain to be recognized for nonfinancial assets transferred to an unconsolidated joint venture and any noncontrolling interest received in such nonfinancial assets to be measured at fair value. See Note 3 for further details including the impact of adoption and the cumulative adjustment recorded. Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2017-09, Scope of Modification Accounting January 1, 2018 - Prospective The guidance clarifies the types of changes to the terms or conditions of a share-based payment award to which an entity would be required to apply modification accounting. The guidance did not have a material impact on the Company's condensed consolidated financial statements. Accounting Guidance Not Yet Effective Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2016-02, Leases , and related subsequent amendments January 1, 2019 - Modified Retrospective (electing optional transition method to apply at adoption date and record cumulative-effect adjustment as of January 1, 2019) The objective of the leasing guidance is to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to recognize a right-of-use asset and corresponding lease liability on the balance sheet for all leases with terms greater than 12 months. The guidance applied by a lessor is substantially similar to existing GAAP and the Company expects substantially all leases will continue to be classified as operating leases under the new guidance. The Company expects to expense certain deferred lease costs due to the narrowed definition of indirect costs that may be capitalized. Of the $1,456 in deferred lease costs recorded in 2017, approximately $183 related to legal costs which would not be capitalized under the new guidance. The Company completed an inventory of its leases in which it is a lessee and expects to record right-of-use assets and corresponding lease liabilities for ground leases. The Company has 10 ground lease arrangements in which it is the lessee for land. As of September 30, 2018, these ground leases have future contractual payments of approximately $14,767 with maturity dates ranging from February 2022 to July 2089. Practical expedients and accounting policy elections: The Company plans to elect a package of practical expedients pursuant to which it will not reassess contracts to determine if they contain leases, will not reassess lease classification and will not reassess capitalization of initial direct costs related to expired or existing leases as of the adoption date. The Company also plans to use the land easements practical expedient and apply the short-term lease policy election to leases 12 months or less at inception. The Company expects to adopt the practical expedient which allows lessors to combine lease and non-lease components if certain conditions are met. The majority of the Company's revenues will continue to be classified as leasing revenues. The Company is assessing the potential impact the guidance may have on its condensed consolidated financial statements and related disclosures. ASU 2016-13, Measurement of Credit Losses on Financial Instruments January 1, 2020 - Modified Retrospective The guidance replaces the current incurred loss impairment model, which reflects credit events, with a current expected credit loss model, which recognizes an allowance for credit losses based on an entity's estimate of contractual cash flows not expected to be collected. The Company is evaluating the impact that this update may have on its condensed consolidated financial statements and related disclosures. Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract January 1, 2020 - Prospective The guidance addresses diversity in practice in accounting for the costs of implementation activities in a cloud computing arrangement that is a service contract. Under the guidance, the Company is to follow Subtopic 350-40 on internal-use software to determine which implementation costs to capitalize and which to expense. The guidance also requires an entity to expense capitalized implementation costs over the term of the hosting arrangement and include that expense in the same line item as the fees associated with the service element of the arrangement. The Company does not expect the adoption of this guidance will have a material impact on its condensed consolidated financial statements or disclosures.
Fair Value Measurements	The Company has categorized its financial assets and financial liabilities that are recorded at fair value into a hierarchy in accordance with ASC 820, Fair Value Measurements and Disclosure , ("ASC 820") based on whether the inputs to valuation techniques are observable or unobservable. The fair value hierarchy contains three levels of inputs that may be used to measure fair value as follows: Level 1 – Inputs represent quoted prices in active markets for identical assets and liabilities as of the measurement date. Level 2 – Inputs, other than those included in Level 1, represent observable measurements for similar instruments in active markets, or identical or similar instruments in markets that are not active, and observable measurements or market data for instruments with substantially the full term of the asset or liability. Level 3 – Inputs represent unobservable measurements, supported by little, if any, market activity, and require considerable assumptions that are significant to the fair value of the asset or liability. Market valuations must often be determined using discounted cash flow methodologies, pricing models or similar techniques based on the Company’s assumptions and best judgment. The asset or liability's fair value within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Under ASC 820, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability in an orderly transaction at the measurement date and under current market conditions. Valuation techniques used maximize the use of observable inputs and minimize the use of unobservable inputs and consider assumptions such as inherent risk, transfer restrictions and risk of nonperformance.
Contingencies	The Company is currently involved in certain litigation that arises in the ordinary course of business, most of which is expected to be covered by liability insurance. Management makes assumptions and estimates concerning the likelihood and amount of any potential loss relating to these matters using the latest information available. The Company records a liability for litigation if an unfavorable outcome is probable and the amount of loss or range of loss can be reasonably estimated. If an unfavorable outcome is probable and a reasonable estimate of the loss is a range, the Company accrues the best estimate within the range. If no amount within the range is a better estimate than any other amount, the Company accrues the minimum amount within the range. If an unfavorable outcome is probable but the amount of the loss cannot be reasonably estimated, the Company discloses the nature of the litigation and indicates that an estimate of the loss or range of loss cannot be made. If an unfavorable outcome is reasonably possible and the estimated loss is material, the Company discloses the nature and estimate of the possible loss of the litigation. Based on current expectations, such matters, both individually and in the aggregate, are not expected to have a material adverse effect on the liquidity, results of operations, business or financial condition of the Company.

Organization and Basis of Pre_2

Organization and Basis of Presentation (Tables)	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Properties Owned by Operating Partnership	As of September 30, 2018 , the Operating Partnership owned interests in the following properties: Other Properties Malls (1) Associated Centers Community Centers Office Buildings/Other Total Consolidated properties 59 20 3 5 (2) 87 Unconsolidated properties (3) 8 3 4 1 16 Total 67 23 7 6 103 (1) Category consists of regional malls, open-air centers and outlet centers (including one mixed-use center). (2) Includes CBL's two corporate office buildings. (3) The Operating Partnership accounts for these investments using the equity method because one or more of the other partners have substantive participating rights.
Schedule of Properties under Development	At September 30, 2018 , the Operating Partnership had interests in the following properties under development: Consolidated Properties Unconsolidated Properties Malls All Other Malls All Other Development — — — 2 Redevelopments 8 — 1 —

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Tables)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Accounting Guidance Adopted Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2014-09, Revenue from Contracts with Customers , and related subsequent amendments January 1, 2018 - Modified Retrospective (applied to contracts not completed as of the implementation date) The objective of this guidance is to enable financial statement users to better understand and analyze revenue by replacing transaction and industry-specific guidance with a more principles-based approach to revenue recognition. The core principle is that an entity should recognize revenue to depict the transfer of goods or services to customers in an amount that the entity expects to be entitled to in exchange for those goods or services. The guidance also requires additional disclosure about the nature, timing and uncertainty of revenue and cash flows arising from customer contracts. The Company expects the adoption of the new guidance to be immaterial to its net income on an ongoing basis as the majority of the Company’s revenues relate to leasing. See Note 3 for further details and the cumulative adjustment recorded. ASU 2016-16, Intra-Entity Transfers of Assets Other Than Inventory January 1, 2018 - Modified Retrospective The guidance requires an entity to recognize the income tax consequences of intercompany sales or transfers of assets, other than inventory, when the sale or transfer occurs. The Company recorded a cumulative effect adjustment of $11,433 to retained earnings as of January 1, 2018 related to certain 2017 asset sales from several of the Company's consolidated subsidiaries to the Management Company. ASU 2017-05, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets January 1, 2018 - Modified Retrospective This guidance applies to the partial sale or transfer of nonfinancial assets, including real estate assets, to unconsolidated joint ventures and requires 100% of the gain to be recognized for nonfinancial assets transferred to an unconsolidated joint venture and any noncontrolling interest received in such nonfinancial assets to be measured at fair value. See Note 3 for further details including the impact of adoption and the cumulative adjustment recorded. Description Date Adopted & Application Method Financial Statement Effect and Other Information ASU 2017-09, Scope of Modification Accounting January 1, 2018 - Prospective The guidance clarifies the types of changes to the terms or conditions of a share-based payment award to which an entity would be required to apply modification accounting. The guidance did not have a material impact on the Company's condensed consolidated financial statements. Accounting Guidance Not Yet Effective Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2016-02, Leases , and related subsequent amendments January 1, 2019 - Modified Retrospective (electing optional transition method to apply at adoption date and record cumulative-effect adjustment as of January 1, 2019) The objective of the leasing guidance is to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to recognize a right-of-use asset and corresponding lease liability on the balance sheet for all leases with terms greater than 12 months. The guidance applied by a lessor is substantially similar to existing GAAP and the Company expects substantially all leases will continue to be classified as operating leases under the new guidance. The Company expects to expense certain deferred lease costs due to the narrowed definition of indirect costs that may be capitalized. Of the $1,456 in deferred lease costs recorded in 2017, approximately $183 related to legal costs which would not be capitalized under the new guidance. The Company completed an inventory of its leases in which it is a lessee and expects to record right-of-use assets and corresponding lease liabilities for ground leases. The Company has 10 ground lease arrangements in which it is the lessee for land. As of September 30, 2018, these ground leases have future contractual payments of approximately $14,767 with maturity dates ranging from February 2022 to July 2089. Practical expedients and accounting policy elections: The Company plans to elect a package of practical expedients pursuant to which it will not reassess contracts to determine if they contain leases, will not reassess lease classification and will not reassess capitalization of initial direct costs related to expired or existing leases as of the adoption date. The Company also plans to use the land easements practical expedient and apply the short-term lease policy election to leases 12 months or less at inception. The Company expects to adopt the practical expedient which allows lessors to combine lease and non-lease components if certain conditions are met. The majority of the Company's revenues will continue to be classified as leasing revenues. The Company is assessing the potential impact the guidance may have on its condensed consolidated financial statements and related disclosures. ASU 2016-13, Measurement of Credit Losses on Financial Instruments January 1, 2020 - Modified Retrospective The guidance replaces the current incurred loss impairment model, which reflects credit events, with a current expected credit loss model, which recognizes an allowance for credit losses based on an entity's estimate of contractual cash flows not expected to be collected. The Company is evaluating the impact that this update may have on its condensed consolidated financial statements and related disclosures. Description Expected Adoption Date & Application Method Financial Statement Effect and Other Information ASU 2018-15, Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract January 1, 2020 - Prospective The guidance addresses diversity in practice in accounting for the costs of implementation activities in a cloud computing arrangement that is a service contract. Under the guidance, the Company is to follow Subtopic 350-40 on internal-use software to determine which implementation costs to capitalize and which to expense. The guidance also requires an entity to expense capitalized implementation costs over the term of the hosting arrangement and include that expense in the same line item as the fees associated with the service element of the arrangement. The Company does not expect the adoption of this guidance will have a material impact on its condensed consolidated financial statements or disclosures.

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Schedule of Contract Assets and Liabilities	A summary of the Company's contract assets activity during the nine months ended September 30, 2018 is presented below: Contract Assets Balance as of January 1, 2018 (1) $ 460 Tenant openings (375 ) Executed leases 525 Balance as of September 30, 2018 $ 610 (1) In conjunction with the initial entry to record contract assets, $166 was also recorded in investments in unconsolidated affiliates in the condensed consolidated balance sheets to eliminate the Company's portion related to two unconsolidated affiliates. The Company has the following contract balances as of September 30, 2018 : As of September 30, 2018 Expected Settlement Period Description Financial Statement Line Item 2018 2019 2020 2023 Contract assets (1) Management, development and leasing fees $ 610 $ (213 ) $ (389 ) (4 ) $ (4 ) Contract liability (2) Other rents 98 (49 ) (49 ) — — (1) Represents leasing fees recognized as revenue in the period in which the lease is executed. Under third party and unconsolidated affiliates' contracts, the remaining 50% of the commissions are paid when the tenant opens. The tenant typically opens within a year, unless the project is in development. (2) Relates to a contract in which the Company received advance payments in the initial year of the multi-year contract.
Schedule of Disaggregation of Revenue	The following table presents the Company's revenues disaggregated by revenue source: Three Months Ended Nine Months Ended September 30, 2018 Leasing revenues (1) $ 200,731 $ 621,016 Revenues from contracts with customers (ASC 606): Operating expense reimbursements (2) 1,682 6,062 Management, development and leasing fees (3) 2,658 8,022 Marketing revenues (4) 1,124 3,374 5,464 17,458 Other revenues 683 3,202 Total revenues $ 206,878 $ 641,676 (1) Revenues from leases are accounted for in accordance with ASC 840, Leases . (2) Includes $1,621 in the Malls segment and $61 in the All Other segment for the three months ended September 30, 2018 . Includes $5,660 in the Malls segment and $402 in the All Other segment for the nine months ended September 30, 2018 . See description below. (3) Included in All Other segment. (4) Includes $1,119 in the Malls segment and $5 in the All Other segment for the three months ended September 30, 2018 . Includes $3,362 in the Malls segment and $12 in the All Other segment for the nine months ended September 30, 2018 .
Schedule of Expected Recognition of Remaining Performance Obligation	he Company has outstanding performance obligations related to certain noncancellable contracts with customers for which it will receive pro rata operating expense reimbursements for providing certain maintenance and other services as described above. As of September 30, 2018 , the Company expects to recognize these amounts as revenue over the following periods: Performance obligation Less than 5 years 5-20 years Over 20 years Total Pro rata operating expense reimbursements $ 981 $ 4,899 $ 33,581 $ 39,461

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Assets Measured on a Nonrecurring Basis	The following table sets forth information regarding the Company's assets, which are included in the Company's condensed consolidated balance sheets as of September 30, 2018 , that were measured at fair value on a nonrecurring basis and related impairment charges for the year ended December 31, 2017: Fair Value Measurements at Reporting Date Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Long-lived assets $ 81,350 $ — $ — $ 81,350 The following table sets forth information regarding the Company's assets that are measured at fair value on a nonrecurring basis and related impairment charges for the nine months ended September 30, 2018 : Fair Value Measurements at Reporting Date Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Loss on Impairment Long-lived assets $ 42,100 $ — $ — $ 42,100 $ 84,644
Schedule of Impairment on Real Estate Properties	During the year ended December 31, 2017 , the Company wrote down the book value of the following properties: Impairment Date Property Location Segment Classification Loss on Impairment Fair Value June Acadiana Mall (1) Lafayette, LA Malls $ 43,007 $ 67,300 September Hickory Point Mall (2) Forsyth, IL Malls 24,525 14,050 $ 67,532 $ 81,350 (1) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of the mall to its estimated fair value of $67,300 . Management determined the fair value of Acadiana Mall using a discounted cash flow methodology. The discounted cash flow used assumptions including a holding period of 10 years, with a sale at the end of the holding period, a capitalization rate of 15.5% and a discount rate of 15.75% . The mall has experienced declining tenant sales and cash flows as a result of the downturn of the economy in its market area and was also impacted by an anchor's announcement in the second quarter 2017 that it would close its store later in 2017. The loan secured by Acadiana Mall matured in April 2017 and is in default. See Note 7 for additional information related to the mortgage loan. (2) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of the mall to its estimated fair value of $14,050 . Management determined the fair value of Hickory Point Mall using a discounted cash flow methodology. The discounted cash flow used assumptions including a holding period of 10 years, with a sale at the end of the holding period, a capitalization rate of 18.0% and a discount rate of 19.0% . During the nine months ended September 30, 2018 , the Company recognized an impairment of real estate of $84,644 related to two malls and undeveloped land: Impairment Date Property Location Segment Classification Loss on Impairment Fair Value March Janesville Mall (1) Janesville, WI Malls $ 18,061 $ — June Cary Towne Center (2) Cary, NC Malls 51,985 34,000 September Vacant land (3) D'Iberville, MS All Other 14,598 8,100 $ 84,644 $ 42,100 (1) The Company adjusted the book value of the mall to its estimated fair value based upon a net sales price of $17,640 in a signed contract with a third party buyer, adjusted to reflect estimated disposition costs. The mall was classified as held for sale as of June 30, 2018 until its sale in in July 2018. See Note 5 for additional information. (2) In June 2018, the Company was notified by IKEA that, as a result of a shift in its corporate strategy, it was terminating the contract to purchase land at the mall upon which it would develop and open a store. Under the terms of the interest-only non-recourse loan secured by the mall, the loan matured on the date the IKEA contract terminated if that date was prior to the scheduled maturity date of March 5, 2019. The Company engaged in conversations with the lender regarding a potential restructure of the loan. Based on the results of these conversations, the Company concluded that an impairment was required because it was unlikely to recover the asset's net carrying value through future cash flows. Management determined the fair value of Cary Towne Center using a discounted cash flow methodology. The discounted cash flow used assumptions including a 10 -year holding period, a capitalization rate of 12.0% and a discount rate of 13% . See Note 7 for information related to the mortgage loan. (3) In accordance with the Company's quarterly impairment review process, the Company wrote down the book value of land to its estimated value of $8,100 . The Company evaluated comparable land parcel transactions and determined that $8,100 was the land's estimated fair value.

Dispositions and Held for Sale

Dispositions and Held for Sale (Tables)	9 Months Ended
	Sep. 30, 2018
Business Combinations, Discontinued Operations and Disposal Groups [Abstract] [Abstract]
Schedule of Dispositions	The following is a summary of the Company's 2018 dispositions: Sales Price Sales Date Property Property Type Location Gross Net Gain March Gulf Coast Town Center - Phase III All Other Ft. Myers, FL $ 9,000 $ 8,769 $ 2,236 July Janesville Mall (1) Malls Janesville, WI 18,000 17,783 — September Statesboro Crossing (2) All Other Statesboro, GA 21,500 10,532 3,215 September Prior sales adjustment Malls — — 92 $ 48,500 $ 37,084 $ 5,543 (1) The Company recognized a loss on impairment of $18,061 in 2018 when it adjusted the book value of the mall to its estimated fair value based upon a contract with a third party buyer, adjusted to reflect estimated disposition costs. See Note 4 . The mall was classified as held for sale as of June 30, 2018 until its sale in July 2018. (2) In conjunction with the sale of this 50/50 consolidated joint venture, the loan secured by the community center was retired. See Note 7 for more information. The Company received 100% of the net proceeds from the sale in accordance with the terms of the joint venture agreement.

Unconsolidated Affiliates and_2

Unconsolidated Affiliates and Noncontrolling Interests (Tables)	9 Months Ended
	Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Condensed Combined Financial Statements of Unconsolidated Affiliates	The Company's unconsolidated affiliates had the following loan activity in 2018: Date Property Stated Maturity Date Amount Financed or Extended April CoolSprings Galleria (1) 4.839% May 2028 $ 155,000 April Self-storage development - Mid Rivers Mall (2) LIBOR + 2.75% April 2023 5,987 May Hammock Landing - Phase I LIBOR + 2.25% February 2021 (3) 41,997 May Hammock Landing - Phase II LIBOR + 2.25% February 2021 (3) 16,217 May The Pavilion at Port Orange LIBOR + 2.25% February 2021 (3) 56,738 (1) CBL/T-C, LLC, a 50/50 joint venture, closed on a non-recourse loan. Proceeds from the loan were used to retire a $97,732 loan, which was due to mature in June 2018. See 2018 Loan Repayment below for more information. The Company's share of excess proceeds were used to reduce outstanding balances on its credit facilities. (2) Self Storage at Mid Rivers, LLC, a 50/50 joint venture, closed on a construction loan with a total borrowing capacity of up to $5,987 for the development of a climate controlled self-storage facility adjacent to Mid Rivers Mall in St. Peters, MO. The Operating Partnership has guaranteed 100% of the loan. See Note 11 for more information. (3) The loans were amended to extend the maturity dates to February 2021. Each loan has two one -year extension options for an outside maturity date of February 2023. The interest rate increased from a variable rate of LIBOR plus 2.0% . The Operating Partnership's guaranty also increased to 50% . Condensed combined financial statement information of the unconsolidated affiliates is as follows: September 30, December 31, ASSETS Investment in real estate assets $ 2,025,289 $ 2,089,262 Accumulated depreciation (658,163 ) (618,922 ) 1,367,126 1,470,340 Developments in progress 68,768 36,765 Net investment in real estate assets 1,435,894 1,507,105 Other assets 186,912 201,114 Total assets $ 1,622,806 $ 1,708,219 LIABILITIES Mortgage and other indebtedness, net $ 1,322,144 $ 1,248,817 Other liabilities 42,986 41,291 Total liabilities 1,365,130 1,290,108 OWNERS' EQUITY The Company 183,392 216,292 Other investors 74,284 201,819 Total owners' equity 257,676 418,111 Total liabilities and owners' equity $ 1,622,806 $ 1,708,219 Total for the Three Months 2018 2017 Total revenues $ 54,579 $ 57,395 Net income (loss) (1) $ (85,136 ) $ 7,868 (1) The Company's share of net income (loss) is $1,762 and $4,706 for the three months ended September 30, 2018 and 2017 , respectively. Total for the Nine Months 2018 2017 Total revenues $ 166,843 $ 175,250 Net income (loss) (1) $ (72,585 ) $ 24,980 (1) The Company's share of net income (loss) is $9,869 and $16,404 for the nine months ended September 30, 2018 and 2017 , respectively.
Schedule of Repayments of Loans	The loan, secured by the related unconsolidated property, was retired in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid April CoolSprings Galleria (1) 6.98% June 2018 $ 97,732 (1) The loan secured by the property was retired using a portion of the net proceeds from a $155,000 fixed-rate loan. See 2018 Financings above for more information. Net mortgage and other indebtedness consisted of the following: September 30, 2018 December 31, 2017 Amount Weighted- Average Interest Rate (1) Amount Weighted- Average Interest Rate (1) Fixed-rate debt: Non-recourse loans on operating properties $ 1,797,080 5.33% $ 1,796,203 5.33% Senior unsecured notes due 2023 (2) 447,309 5.25% 446,976 5.25% Senior unsecured notes due 2024 (3) 299,951 4.60% 299,946 4.60% Senior unsecured notes due 2026 (4) 616,436 5.95% 615,848 5.95% Total fixed-rate debt 3,160,776 5.37% 3,158,973 5.37% Variable-rate debt: Non-recourse loan on operating property (5) — —% 10,836 3.37% Recourse loans on operating properties 74,150 4.73% 101,187 4.00% Unsecured lines of credit 201,358 3.65% 93,787 2.56% Unsecured term loans 695,000 3.96% 885,000 2.81% Total variable-rate debt 970,508 3.95% 1,090,810 2.90% Total fixed-rate and variable-rate debt 4,131,284 5.04% 4,249,783 4.74% Unamortized deferred financing costs (15,476 ) (18,938 ) Total mortgage and other indebtedness, net $ 4,115,808 $ 4,230,845 (1) Weighted-average interest rate includes the effect of debt premiums and discounts, but excludes amortization of deferred financing costs. (2) The balance is net of an unamortized discount of $2,691 and $3,024 as of September 30, 2018 and December 31, 2017 , respectively. (3) The balance is net of an unamortized discount of $49 and $54 as of September 30, 2018 and December 31, 2017 , respectively. (4) The balance is net of an unamortized discount of $8,564 and $9,152 as of September 30, 2018 and December 31, 2017 , respectively. (5) The loan was retired in conjunction with the sale of the property in September 2018. See Mortgages on Operating Properties section below. Description Issued (1) Amount Interest Rate (2) Maturity Date (3) 2023 Notes November 2013 $ 450,000 5.25% December 2023 2024 Notes October 2014 300,000 4.60% October 2024 2026 Notes December 2016 / September 2017 625,000 5.95% December 2026 (1) Issued by the Operating Partnership. CBL is a limited guarantor of the Operating Partnership's obligations under the Notes as described above. (2) Interest is payable semiannually in arrears. The interest rate for the 2024 Notes and the 2023 Notes is subject to an increase ranging from 0.25% to 1.00% from time to time if, on or after January 1, 2016 and prior to January 1, 2020, the ratio of secured debt to total assets of the Company, as defined, is greater than 40% but less than 45% . The required ratio of secured debt to total assets for the 2026 Notes is 40% or less. As of September 30, 2018 , this ratio was 24% as shown below. (3) The Notes are redeemable at the Operating Partnership's election, in whole or in part from time to time, on not less than 30 days and not more than 60 days' notice to the holders of the Notes to be redeemed. The 2026 Notes, the 2024 Notes and the 2023 Notes may be redeemed prior to September 15, 2026, July 15, 2024, and September 1, 2023, respectively, for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed, plus accrued and unpaid interest to, but not including, the redemption date and a make-whole premium calculated in accordance with the indenture. On or after the respective dates noted above, the Notes are redeemable for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed plus accrued and unpaid interest. If redeemed prior to the respective dates noted above, each issuance of Notes is redeemable at the treasury rate plus 0.50% , 0.35% and 0.40% for the 2026 Notes, the 2024 Notes and the 2023 Notes, respectively. The following summarizes certain information about the Company's unsecured term loans as of September 30, 2018: Total Outstanding Interest Rate Spread Interest Rate Maturity Date Extended Maturity Date Wells Fargo - $350,000 term loan $ 350,000 LIBOR + 1.75% 3.85% October 2018 October 2019 (1) Wells Fargo - $300,000 term loan 300,000 LIBOR + 2.00% 4.10% July 2020 July 2022 (2) First Tennessee - $45,000 term loan 45,000 LIBOR + 1.65% 3.75% June 2021 June 2022 $ 695,000 (1) Subsequent to September 30, 2018 , the Company exercised the extension option. See Note 14 . (2) The loan has two one -year extension options, the second of which is at the lender's discretion.
Schedule of Limited Partners' Capital Account by Class	Noncontrolling interests consist of the following: As of September 30, 2018 December 31, 2017 Noncontrolling interests: Operating Partnership $ 67,476 $ 86,773 Other consolidated subsidiaries 11,799 9,701 $ 79,275 $ 96,474
Schedule of Variable Interest Entities	The table below lists the Company's unconsolidated VIEs as of September 30, 2018 : Investment in Real Estate Joint Ventures and Partnerships Maximum Risk of Loss Ambassador Infrastructure, LLC (1) $ — $ 10,605 EastGate Storage, LLC (1) 1,215 6,500 G&I VIII CBL Triangle LLC (2) — — Self Storage at Mid Rivers, LLC (1) 1,061 5,987 Shoppes at Eagle Point, LLC (1) 17,519 36,400 (1) The debt is guaranteed by the Operating Partnership at 100% . See Note 11 for more information. (2) In conjunction with a loss on impairment recorded in September 2018, as described above, the Company wrote down its investment in the unconsolidated 90/10 joint venture to zero. The maximum risk of loss is limited to the basis, which is zero.

Mortgage and Other Indebtedne_2

Mortgage and Other Indebtedness, Net (Tables)	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Schedule of Mortgage and Other Indebtedness	The loan, secured by the related unconsolidated property, was retired in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid April CoolSprings Galleria (1) 6.98% June 2018 $ 97,732 (1) The loan secured by the property was retired using a portion of the net proceeds from a $155,000 fixed-rate loan. See 2018 Financings above for more information. Net mortgage and other indebtedness consisted of the following: September 30, 2018 December 31, 2017 Amount Weighted- Average Interest Rate (1) Amount Weighted- Average Interest Rate (1) Fixed-rate debt: Non-recourse loans on operating properties $ 1,797,080 5.33% $ 1,796,203 5.33% Senior unsecured notes due 2023 (2) 447,309 5.25% 446,976 5.25% Senior unsecured notes due 2024 (3) 299,951 4.60% 299,946 4.60% Senior unsecured notes due 2026 (4) 616,436 5.95% 615,848 5.95% Total fixed-rate debt 3,160,776 5.37% 3,158,973 5.37% Variable-rate debt: Non-recourse loan on operating property (5) — —% 10,836 3.37% Recourse loans on operating properties 74,150 4.73% 101,187 4.00% Unsecured lines of credit 201,358 3.65% 93,787 2.56% Unsecured term loans 695,000 3.96% 885,000 2.81% Total variable-rate debt 970,508 3.95% 1,090,810 2.90% Total fixed-rate and variable-rate debt 4,131,284 5.04% 4,249,783 4.74% Unamortized deferred financing costs (15,476 ) (18,938 ) Total mortgage and other indebtedness, net $ 4,115,808 $ 4,230,845 (1) Weighted-average interest rate includes the effect of debt premiums and discounts, but excludes amortization of deferred financing costs. (2) The balance is net of an unamortized discount of $2,691 and $3,024 as of September 30, 2018 and December 31, 2017 , respectively. (3) The balance is net of an unamortized discount of $49 and $54 as of September 30, 2018 and December 31, 2017 , respectively. (4) The balance is net of an unamortized discount of $8,564 and $9,152 as of September 30, 2018 and December 31, 2017 , respectively. (5) The loan was retired in conjunction with the sale of the property in September 2018. See Mortgages on Operating Properties section below. Description Issued (1) Amount Interest Rate (2) Maturity Date (3) 2023 Notes November 2013 $ 450,000 5.25% December 2023 2024 Notes October 2014 300,000 4.60% October 2024 2026 Notes December 2016 / September 2017 625,000 5.95% December 2026 (1) Issued by the Operating Partnership. CBL is a limited guarantor of the Operating Partnership's obligations under the Notes as described above. (2) Interest is payable semiannually in arrears. The interest rate for the 2024 Notes and the 2023 Notes is subject to an increase ranging from 0.25% to 1.00% from time to time if, on or after January 1, 2016 and prior to January 1, 2020, the ratio of secured debt to total assets of the Company, as defined, is greater than 40% but less than 45% . The required ratio of secured debt to total assets for the 2026 Notes is 40% or less. As of September 30, 2018 , this ratio was 24% as shown below. (3) The Notes are redeemable at the Operating Partnership's election, in whole or in part from time to time, on not less than 30 days and not more than 60 days' notice to the holders of the Notes to be redeemed. The 2026 Notes, the 2024 Notes and the 2023 Notes may be redeemed prior to September 15, 2026, July 15, 2024, and September 1, 2023, respectively, for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed, plus accrued and unpaid interest to, but not including, the redemption date and a make-whole premium calculated in accordance with the indenture. On or after the respective dates noted above, the Notes are redeemable for cash at a redemption price equal to the aggregate principal amount of the Notes to be redeemed plus accrued and unpaid interest. If redeemed prior to the respective dates noted above, each issuance of Notes is redeemable at the treasury rate plus 0.50% , 0.35% and 0.40% for the 2026 Notes, the 2024 Notes and the 2023 Notes, respectively. The following summarizes certain information about the Company's unsecured term loans as of September 30, 2018: Total Outstanding Interest Rate Spread Interest Rate Maturity Date Extended Maturity Date Wells Fargo - $350,000 term loan $ 350,000 LIBOR + 1.75% 3.85% October 2018 October 2019 (1) Wells Fargo - $300,000 term loan 300,000 LIBOR + 2.00% 4.10% July 2020 July 2022 (2) First Tennessee - $45,000 term loan 45,000 LIBOR + 1.65% 3.75% June 2021 June 2022 $ 695,000 (1) Subsequent to September 30, 2018 , the Company exercised the extension option. See Note 14 . (2) The loan has two one -year extension options, the second of which is at the lender's discretion.
Schedule of Line of Credit Facilities	The following summarizes certain information about the Company's unsecured lines of credit as of September 30, 2018: Total Capacity Total Outstanding Maturity Date Extended Maturity Date Wells Fargo - Facility A $ 500,000 (1) $ — October 2019 October 2020 (2) First Tennessee 100,000 (3) 47,695 October 2019 October 2020 (4) Wells Fargo - Facility B 500,000 (1) 153,663 (5) October 2020 $ 1,100,000 (6) $ 201,358 (1) Up to $30,000 of the capacity on this facility can be used for letters of credit. (2) The extension option is at the Company's election, subject to continued compliance with the terms of the facility, and has a one-time extension fee of 0.15% of the commitment amount of the credit facility. (3) Up to $20,000 of the capacity on this facility can be used for letters of credit. (4) The extension option on the facility is at the Company's election, subject to continued compliance with the terms of the facility, and has a one-time extension fee of 0.20% of the commitment amount of the credit facility. (5) There was $4,833 outstanding on this facility as of September 30, 2018 for letters of credit. (6) See debt covenant section below for limitation on excess capacity.
Schedule of Covenant Compliance	The following presents the Company's compliance with key covenant ratios, as defined, of the Notes as of September 30, 2018 : Ratio Required Actual Total debt to total assets < 60% 52% Secured debt to total assets < 40% (1) 24% Total unencumbered assets to unsecured debt > 150% 215% Consolidated income available for debt service to annual debt service charge > 1.5x 2.7x (1) Secured debt to total assets must be less than 45% for the 2023 Notes and the 2024 Notes until January 1, 2020. The following presents the Company's compliance with key covenant ratios, as defined, of the credit facilities and term loans as of September 30, 2018 : Ratio Required Actual Debt to total asset value < 60% 53 % Unsecured indebtedness to unencumbered asset value < 60% 49 % (1) Unencumbered NOI to unsecured interest expense > 1.75x 2.6 x EBITDA to fixed charges (debt service) > 1.5x 2.3 x (1) The debt covenant limits the total amount of unsecured indebtedness the Company may have outstanding, which varies over time based on the ratio. Based on the Company’s outstanding unsecured indebtedness as of September 30, 2018 , the total amount available to the Company on its lines of credit was $697,627 . Therefore, the Company had additional availability of $491,436 based on the outstanding balances of the lines of credit as of September 30, 2018 .
Schedule of Fixed Rate Loans	The following table presents the loan, secured by the related consolidated property, that was entered into in 2018: Date Property Stated Interest Rate Maturity Date Amount Financed September The Outlet Shoppes at El Paso (1) 5.10% October 2028 $ 75,000 (1) The Company owns the property in a 75/25 consolidated joint venture. A portion of the proceeds from the non-recourse loan was used to retire a recourse loan secured by Phase II of The Outlet Shoppes at El Paso as described below. The Company repaid the following loans, secured by the related consolidated properties, in 2018: Date Property Interest Rate at Repayment Date Scheduled Maturity Date Principal Balance Repaid (1) January Kirkwood Mall 5.75% April 2018 $ 37,295 August Statesboro Crossing (2) 4.24% June 2019 10,753 September The Outlet Shoppes at El Paso - Phase II (3) 4.73% December 2018 6,525 $ 54,573 (1) The Company retired the loans with borrowings from its credit facilities unless otherwise noted. (2) The loan was retired in conjunction with the sale of the property that secured the loan. See Note 5 for more information. (3) In July 2018, the loan secured by the property was extended from July 2018 to December 2018. It was subsequently retired when the joint venture closed on a new loan in September 2018 as described above.
Schedule of Principal Repayments	As of September 30, 2018 , the scheduled principal amortization and balloon payments of the Company’s consolidated debt, excluding extensions available at the Company’s option, on all mortgage and other indebtedness, including construction loans and lines of credit, are as follows: 2018 $ 411,284 2019 309,346 2020 661,816 2021 499,321 2022 432,546 Thereafter 1,706,132 4,020,445 Unamortized discounts (11,304 ) Unamortized deferred financing costs (15,476 ) Principal balance of loan secured by Lender Mall in foreclosure (1) 122,143 Total mortgage and other indebtedness, net $ 4,115,808 (1) Represents the principal balance of the non-recourse loan, secured by Acadiana Mall, which is in default. The loan matured in 2017.

Mortgage and Other Notes Rece_2

Mortgage and Other Notes Receivable (Tables)	9 Months Ended
	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Schedule of Mortgage and Other Notes Receivable	Mortgage and other notes receivable consist of the following: As of September 30, 2018 As of December 31, 2017 Maturity Date Interest Rate Balance Interest Rate Balance Mortgages: Columbia Place Outparcel Feb 2022 5.00% $ 288 5.00% $ 302 One Park Place May 2022 5.00% 837 5.00% 1,010 Village Square (1) Sep 2018 4.00% 1,554 4.00% 1,596 Other (2) Dec 2016 - Jan 2047 4.73% - 9.50% 2,510 4.07% - 9.50% 2,510 5,189 5,418 Other Notes Receivable: ERMC Sep 2021 4.00% 2,354 4.00% 2,855 Southwest Theaters LLC Apr 2026 5.00% 628 5.00% 672 2,982 3,527 $ 8,171 $ 8,945 (1) The note was amended to extend the maturity date and restructure the monthly payment amount subsequent to September 30, 2018. See Note 14 for more information. (2) The $1,100 note with D'Iberville Promenade, LLC, with a maturity date of December 2016, is in default.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Schedule of Information on Reportable Segments	Information on the Company’s segments is presented as follows: Three Months Ended September 30, 2018 Malls All Other (1) Total Revenues (2) $ 188,440 $ 18,438 $ 206,878 Property operating expenses (3) (57,243 ) (3,669 ) (60,912 ) Interest expense (24,665 ) (30,529 ) (55,194 ) Other expense — (38 ) (38 ) Gain on sales of real estate assets 92 7,788 7,880 Segment profit (loss) $ 106,624 $ (8,010 ) 98,614 Depreciation and amortization expense (71,945 ) General and administrative expense (16,051 ) Interest and other income 283 Loss on impairment (14,600 ) Income tax provision (1,034 ) Equity in earnings of unconsolidated affiliates 1,762 Net loss $ (2,971 ) Capital expenditures (4) $ 38,512 $ 2,671 $ 41,183 Three Months Ended September 30, 2017 Malls All Other (1) Total Revenues (2) $ 205,020 $ 19,630 $ 224,650 Property operating expenses (3) (59,602 ) (4,520 ) (64,122 ) Interest expense (28,922 ) (24,991 ) (53,913 ) Other expense — (132 ) (132 ) Gain (loss) on sales of real estate assets (1,994 ) 3,377 1,383 Segment profit (loss) $ 114,502 $ (6,636 ) 107,866 Depreciation and amortization expense (71,732 ) General and administrative expense (13,568 ) Interest and other income (loss) (200 ) Gain on extinguishment of debt 6,452 Loss on impairment (24,935 ) Loss on investment (354 ) Income tax benefit 1,064 Equity in earnings of unconsolidated affiliates 4,706 Net income $ 9,299 Capital expenditures (4) $ 47,246 $ 1,035 $ 48,281 Nine Months Ended September 30, 2018 Malls All Other (1) Total Revenues (2) $ 585,097 $ 56,579 $ 641,676 Property operating expenses (3) (179,012 ) (11,795 ) (190,807 ) Interest expense (76,401 ) (86,763 ) (163,164 ) Other expense (84 ) (293 ) (377 ) Gain on sales of real estate assets 92 15,906 15,998 Segment profit (loss) $ 329,692 $ (26,366 ) 303,326 Depreciation and amortization expense (217,261 ) General and administrative expense (47,845 ) Nine Months Ended September 30, 2018 Malls All Other (1) Total Interest and other income 714 Loss on impairment (84,644 ) Gain on investment 387 Income tax benefit 1,846 Equity in earnings of unconsolidated affiliates 9,869 Net loss $ (33,608 ) Capital expenditures (4) $ 105,593 $ 10,063 $ 115,656 Nine Months Ended September 30, 2017 Malls All Other (1) Total Revenues (2) $ 632,830 $ 59,066 $ 691,896 Property operating expenses (3) (182,926 ) (11,989 ) (194,915 ) Interest expense (93,481 ) (71,698 ) (165,179 ) Other expense — (5,151 ) (5,151 ) Gain on sales of real estate assets 75,434 11,470 86,904 Segment profit (loss) $ 431,857 $ (18,302 ) 413,555 Depreciation and amortization expense (225,461 ) General and administrative expense (45,402 ) Interest and other income 1,235 Gain on extinguishment of debt 30,927 Loss on impairment (71,401 ) Loss on investment (6,197 ) Income tax benefit 4,784 Equity in earnings of unconsolidated affiliates 16,404 Net income $ 118,444 Capital expenditures (4) $ 126,290 $ 5,588 $ 131,878 Total Assets Malls All Other (1) Total September 30, 2018 $ 4,979,583 $ 511,436 $ 5,491,019 December 31, 2017 $ 5,152,789 $ 552,019 $ 5,704,808 (1) The All Other category includes associated centers, community centers, mortgage and other notes receivable, office buildings, self-storage facilities and the Management Company. (2) Management, development and leasing fees are included in the All Other category. See Note 3 for information on the Company's revenues disaggregated by revenue source for each of the above segments. (3) Property operating expenses include property operating, real estate taxes and maintenance and repairs. (4) Amounts include acquisitions of real estate assets and investments in unconsolidated affiliates. Developments in progress are included in the All Other category.

Contingencies (Tables)

Contingencies (Tables)	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Guarantees	The following table represents the Operating Partnership's guarantees of unconsolidated affiliates' debt as reflected in the accompanying condensed consolidated balance sheets as of September 30, 2018 and December 31, 2017: As of September 30, 2018 Obligation Recorded to Unconsolidated Company's Outstanding Percentage Maximum Debt (1) 9/30/2018 12/31/2017 West Melbourne I, LLC - Phase I (2) 50% $ 41,737 50 % (3) $ 20,869 Feb-2021 (3) $ 209 $ 86 West Melbourne I, LLC - Phase II (2) 50% 16,097 50 % (3) 8,049 Feb-2021 (3) 80 33 Port Orange I, LLC 50% 56,366 50 % (3) 28,183 Feb-2021 (3) 282 116 Ambassador Infrastructure, LLC 65% 10,605 100 % 10,605 Aug-2020 106 177 Shoppes at Eagle Point, LLC 50% 32,679 100 % (4) 36,400 Oct-2020 (5) 364 364 EastGate Storage, LLC 50% 4,162 100 % (6) 6,500 Dec-2022 65 65 Self Storage at Mid Rivers, LLC (7) 50% 2,021 100 % 5,987 Apr-2023 60 — Total guaranty liability $ 1,166 $ 841 (1) Excludes any extension options. (2) The loan is secured by Hammock Landing - Phase I and Hammock Landing - Phase II, respectively. (3) The loan was amended in May 2018 to extend the maturity date and increase the guaranty from 20%. The loan has two one-year extension options for an outside maturity date of February 2023. See Note 6 for more information. (4) The guaranty will be reduced to 35% once construction is complete. (5) The loan has one two -year extension option, at the joint venture's election, for an outside maturity date of October 2022. (6) Once construction is complete, the guaranty will be reduced to 50% . The guaranty will be further reduced to 25% once certain debt and operational metrics are met. (7) The Company received a 1% fee for the guaranty when the loan was issued in April 2018. The guaranty will be reduced to 50% once construction is complete. The guaranty will be further reduced to 25% once certain debt and operational metrics are met. See Note 6 for additional information.

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2018
Share-based Compensation [Abstract]
Schedule of Company Stock Award	A summary of the status of the Company’s nonvested restricted stock awards as of September 30, 2018 , and changes during the nine months ended September 30, 2018 , is presented below: Shares Weighted-Average Grant Date Fair Value Nonvested at January 1, 2018 642,359 $ 13.23 Granted 693,064 $ 4.55 Vested (413,032 ) $ 9.64 Forfeited (8,852 ) $ 9.36 Nonvested at September 30, 2018 913,539 $ 8.30 A summary of the status of the Company’s PSU activity as of September 30, 2018 , and changes during the nine months ended September 30, 2018 , is presented below: PSUs Weighted-Average Grant Date Fair Value Outstanding at January 1, 2018 560,371 $ 5.91 2018 PSUs granted 741,977 $ 2.63 Forfeited (138,899 ) $ 4.22 Outstanding at September 30, 2018 (1) 1,163,449 $ 4.55 (1) None of the PSUs outstanding at September 30, 2018 were vested.
Schedule of Assumptions Used in the Monte Carlo Simulation Pricing Model	The following table summarizes the assumptions used in the Monte Carlo simulation pricing model related to the PSUs: 2018 PSUs 2017 PSUs 2016 PSUs Grant date February 12, 2018 February 7, 2017 February 10, 2016 Fair value per share on valuation date (1) $ 4.76 $ 6.86 $ 4.98 Risk-free interest rate (2) 2.36 % 1.53 % 0.92 % Expected share price volatility (3) 42.02 % 32.85 % 30.95 % (1) The value of the PSU awards is estimated on the date of grant using a Monte Carlo simulation model. The valuation consists of computing the fair value using CBL's simulated stock price as well as TSR over a three -year performance period. The award is modeled as a contingent claim in that the expected return on the underlying shares is risk-free and the rate of discounting the payoff of the award is also risk-free. The weighted-average fair value per share related to the 2018 PSUs classified as equity consists of 240,164 shares at a fair value of $3.13 (which relate to relative TSR) and 120,064 shares at a fair value of $1.63 per share (which relate to absolute TSR). The weighted-average fair value per share related to the 2017 PSUs consists of 115,082 shares at a fair value of $5.62 per share and 162,294 shares at a fair value of $7.74 per share. (2) The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury securities in effect as of the valuation date, which is the respective grant date listed above. (3) The computation of expected volatility was based on a blend of the historical volatility of CBL's shares of common stock based on annualized daily total continuous returns over a three -year period and implied volatility data based on the trailing month average of daily implied volatilities implied by stock call option contracts that were both closest to the terms shown and closest to the money.

Noncash Investing and Financi_2

Noncash Investing and Financing Activities (Tables)	9 Months Ended
	Sep. 30, 2018
Supplemental Cash Flow Information [Abstract]
Schedule of Noncash Investing and Financing Activities	The Company’s noncash investing and financing activities were as follows: Nine Months Ended 2018 2017 Accrued dividends and distributions payable $ 41,657 $ 54,375 Additions to real estate assets accrued but not yet paid 22,428 12,204 Conversion of Operating Partnership units for common stock (1) 3,059 — Deconsolidation upon contribution/assignment of interests in joint venture: (1) Decrease in real estate assets (587 ) (9,131 ) Increase in investment in unconsolidated affiliates 974 — Decrease in mortgage and other indebtedness — 2,466 Decrease in operating assets and liabilities — 1,286 Decrease in noncontrolling interest and joint venture interest — 2,232 Transfer of real estate assets in settlement of mortgage debt obligation: Decrease in real estate assets — (149,722 ) Decrease in mortgage and other indebtedness — 189,642 Decrease in operating assets and liabilities — (122 ) (1) See Note 6 for more information.

Organization and Basis of Pre_3

Organization and Basis of Presentation - Narrative (Details) $ in Thousands, shares in Millions	9 Months Ended
	Sep. 30, 2018USD ($)statesubsidiaryshares	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of states in which entity operates | state	26
Net cash provided by (used in) investing activities	$ 14,325	$ 35,412
Net cash provided by (used in) financing activities	(278,109)	(298,049)
Principal payments on mortgage and other indebtedness	649,904	1,159,144
Cash, cash equivalents, restricted cash, and restricted cash equivalents	$ 56,145	68,558	$ 68,172	$ 65,069
CBL & Associates Limited Partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of subsidiaries owned by the company | subsidiary	2
Ownership of the sole general partner in partnership (as a percent)	1.00%
Limited partnership interest owned by CBL Holdings II, Inc. in the operating partnership (as a percent)	85.60%
Combined ownership by the subsidiaries in operating partnership (as a percent)	86.60%
Consolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Non-controlling limited partner interest ownership of CBL's Predecessor in the Operating Partnership (as a percent)	9.10%
Non-controlling limited partner interest of third parties in Operating partnership (as a percent)	4.30%
Common stock owned by CBL's Predecessor (shares) | shares	4
Total combined effective interest of CBL's Predecessor in Operating Partnership (as a percent)	11.10%
Accounting Standards Update 2016-18
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net cash provided by (used in) investing activities		1,261
Net cash provided by (used in) financing activities		(1,261)
Principal payments on mortgage and other indebtedness		7,650
Cash, cash equivalents, restricted cash, and restricted cash equivalents		$ (8,911)
CBL Holdings | Consolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest in qualified subsidiaries (as a percent)	100.00%

Organization and Basis of Pre_4

Organization and Basis of Presentation - Properties Owned by Operating Partnership (Details)	Sep. 30, 2018propertyassociated_centermixed_use_centermallcommunity_centeroffice_building
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Malls | mall	67
Associated Centers | associated_center	23
Community Centers | community_center	7
Office Buildings/Other	6
Total Properties | property	103
Consolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Malls | mall	59
Associated Centers | associated_center	20
Community Centers | community_center	3
Office Buildings/Other	5
Total Properties | property	87
Number of mixed-use centers owned | mixed_use_center	1
Consolidated Properties | CBL & Associates Limited Partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Office Buildings/Other	2
Unconsolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Malls | mall	8
Associated Centers | associated_center	3
Community Centers | community_center	4
Office Buildings/Other	1
Total Properties | property	16

Organization and Basis of Pre_5

Organization and Basis of Presentation - Interest Held in Properties (Details)	Sep. 30, 2018mallother_property
Consolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Development, Malls | mall	0
Redevelopments, Malls | mall	8
Development, All Other | other_property	0
Redevelopments, All Other | other_property	0
Unconsolidated Properties
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Development, Malls | mall	0
Redevelopments, Malls | mall	1
Development, All Other | other_property	2
Redevelopments, All Other | other_property	0

Recent Accounting Pronounceme_4

Recent Accounting Pronouncements - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)	Sep. 30, 2018USD ($)lease	Jan. 01, 2018USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of properties subject to ground leases | lease		10
Future contractual lease payments		$ 14,767
Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change	$ 11,433
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred lease costs	1,456
Legal costs	$ 183
Retained Earnings | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change			$ 11,433

Revenues - Narrative (Details)

Revenues - Narrative (Details) $ in Thousands	Jan. 01, 2018USD ($)affiliate	Sep. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Dividends in excess of cumulative earnings		$ (927,416)	$ (836,269)
Number of unconsolidated affiliates included in partial sale of real estate assets | affiliate	1
Tenant reimbursements period related to certain capital expenditure minimum		5 years
Tenant reimbursements period related to certain capital expenditure maximum		15 years
Lease commission recognized upon lease execution (as a percent)		50.00%
Accounting Standards Update 2017-05, Unconsolidated Affiliate Impact
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Effect of change on operating results	$ 57,850
Accounting Standards Update 2017-05, Joint Venture Impact
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Effect of change on operating results	901
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Dividends in excess of cumulative earnings	$ 196

Revenues - Contract Balances (D

Revenues - Contract Balances (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Contract Assets Activity [Roll Forward]
Balance at beginning of period	$ 460,000
Tenant openings	(375,000)
Executed leases	525,000
Balance at end of period	610,000
Investments in unconsolidated affiliates				$ 166,000
Increase (decrease) in contract with customer liability	0
Contract with Customer, Liability [Abstract]
Contract with customer - asset	$ 460,000	$ 610,000		$ 460,000
Contract with customer - asset - remainder of 2018		(213,000)
Contract with customer - asset - 2019		(389,000)
Contract with customer - asset - 2020		(4,000)
Contract with customer - asset - 2023		(4,000)
Contract with customer - liability		98,000	$ 98,000
Lease commission recognized upon tenant opening (as a percent)	50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (49,000)
Expected timing of satisfaction of remaining performance obligation		3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-02
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (981,000)
Expected timing of satisfaction of remaining performance obligation		5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (49,000)
Expected timing of satisfaction of remaining performance obligation		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ 0
Expected timing of satisfaction of remaining performance obligation		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ 0
Expected timing of satisfaction of remaining performance obligation		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (4,899,000)
Expected timing of satisfaction of remaining performance obligation		15 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2038-10-01
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (33,581,000)
Expected timing of satisfaction of remaining performance obligation		0 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2038-10-02
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer - liability		$ (39,461,000)
Expected timing of satisfaction of remaining performance obligation

Revenues - Disaggregation of Re

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Leasing revenues	$ 200,731		$ 621,016
Revenues from contracts with customers (ASC 606):	5,464		17,458
Other revenues	1,822	$ 1,251	6,448	$ 4,079
Total revenues	206,878	224,650	641,676	691,896
Malls
Disaggregation of Revenue [Line Items]
Total revenues	188,440	205,020	585,097	632,830
All Other
Disaggregation of Revenue [Line Items]
Total revenues	18,438	$ 19,630	56,579	$ 59,066
Operating expense reimbursements
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	1,682		6,062
Operating expense reimbursements | Malls
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	1,621		5,660
Operating expense reimbursements | All Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	61		402
Management, development and leasing fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	2,658		8,022
Marketing
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	1,124		3,374
Marketing | Malls
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	1,119		3,362
Marketing | All Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers (ASC 606):	5		12
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 683		$ 3,202

Revenues - Remaining Performanc

Revenues - Remaining Performance Obligations (Details) $ in Thousands	Sep. 30, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 49
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-02
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 981
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 49
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 4,899
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	15 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2038-10-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 33,581
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation	0 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2038-10-02
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 39,461
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction of remaining performance obligation

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair value of long-term debt	$ 3,905,211	$ 4,199,357

Fair Value Measurements - Asset

Fair Value Measurements - Assets Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets	$ 42,100		$ 42,100		$ 81,350
Total Loss on Impairment	14,600	$ 24,935	84,644	$ 71,401	67,532
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets	0		0		0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets	0		0		0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets	$ 42,100		$ 42,100		$ 81,350

Fair Value Measurements - Impai

Fair Value Measurements - Impairment of Real Estate Properties (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018USD ($)yr	Sep. 30, 2017USD ($)	Sep. 30, 2018USD ($)yrmall	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)yr
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment	$ 14,600	$ 24,935	$ 84,644	$ 71,401	$ 67,532
Number of malls with impairment | mall			2
Fair Value	42,100		$ 42,100		81,350
Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment			84,644
Fair Value	42,100		42,100
Outlet Mall and Outparcel Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment			84,644
Janesville Mall
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net sales price	17,640		17,640
Janesville Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment			18,061
Fair Value	0		0
Cary Towne Center | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment			51,985
Fair Value	34,000		34,000
Vacant land | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment			14,598
Fair Value	$ 8,100		$ 8,100
Acadiana Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment					43,007
Fair Value					67,300
Fair value of equity method investments					67,300
Hickory Point Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss on impairment					24,525
Fair Value					$ 14,050
Expected Term | Cary Towne Center | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input | yr	10		10
Expected Term | Acadiana Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input | yr					10
Expected Term | Hickory Point Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input | yr					10
Cap Rate | Cary Towne Center | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input	0.120		0.120
Cap Rate | Acadiana Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input					0.155
Cap Rate | Hickory Point Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input					0.180
Discount Rate | Cary Towne Center | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input	0.13		0.13
Discount Rate | Acadiana Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input					0.1575
Discount Rate | Hickory Point Mall | Malls
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input					0.190

Dispositions and Held for Sal_2

Dispositions and Held for Sale - Summary (Details) $ in Thousands		9 Months Ended
		Sep. 30, 2018USD ($)outparcel	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price, gross		$ 48,500
Sales price, net		37,084
Gain		5,543
Gain on sales of real estate assets		15,998	$ 86,904
Held for sale	[1]	$ 14,807		$ 0
Real estate held-for-sale relative to total assets (as a percent)		0.31188%
Outparcel Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sales of real estate assets		$ 10,455
Number of properties disposed | outparcel		10
Other | Gulf Coast Town Center - Phase III
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price, gross		$ 9,000
Sales price, net		8,769
Gain		2,236
Other | Statesboro Crossing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price, gross		21,500
Sales price, net		10,532
Gain		3,215
Malls | Janesville Mall
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price, gross		18,000
Sales price, net		17,783
Gain		0
Gain (loss) on impairments		(18,061)
Malls | Prior sales adjustment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price, gross		0
Sales price, net		0
Gain		$ 92
[1]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.

Unconsolidated Affiliates and_3

Unconsolidated Affiliates and Noncontrolling Interests - Narrative (Details)	1 Months Ended		3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2018USD ($)yrentity	Apr. 30, 2018USD ($)	Sep. 30, 2018USD ($)yrholderentityshares	Mar. 31, 2018shares	Sep. 30, 2017USD ($)	Sep. 30, 2018USD ($)yrentityshares	Sep. 30, 2017USD ($)shares	Dec. 31, 2017USD ($)	Sep. 29, 2018USD ($)
Schedule of Equity Method Investments [Line Items]
Number of equity method investment entities | entity	19		19			19
Number of joint ventures | entity	14		14			14
Loss on impairment			$ 14,600,000		$ 24,935,000	$ 84,644,000	$ 71,401,000	$ 67,532,000
Gain on investment related to land contributed to joint venture		$ 387,000
Cash paid upon conversion of common units			$ 2,246,000
Number of holders of common units | holder			2
Issuances of common units (shares) | shares						716,290	342,008
Number of variable interest entities | entity						19
Ownership in variable interest entity (as a percent)						50.00%
Minimum
Schedule of Equity Method Investments [Line Items]
Equity interest in real estate property (as a percent)	10.00%		10.00%			10.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Equity interest in real estate property (as a percent)	65.00%		65.00%			65.00%
Ownership in variable interest entity (as a percent)						95.00%
Unconsolidated Properties
Schedule of Equity Method Investments [Line Items]
Issuances of common units (shares) | shares			526,510	915,338
G&I VIII CBL Triangle LLC
Schedule of Equity Method Investments [Line Items]
Loss on impairment	$ 89,826,000					$ 1,022,000
Real estate investment	0		$ 0			0
Fair value of joint venture	$ 33,600,000		$ 33,600,000			$ 33,600,000			$ 123,453,000
Expected Term | G&I VIII CBL Triangle LLC
Schedule of Equity Method Investments [Line Items]
Fair value measurement input | yr	10		10			10
Cap Rate | G&I VIII CBL Triangle LLC
Schedule of Equity Method Investments [Line Items]
Fair value measurement input	0.15		0.15			0.15
Discount Rate | G&I VIII CBL Triangle LLC
Schedule of Equity Method Investments [Line Items]
Fair value measurement input	0.15		0.15			0.15

Unconsolidated Affiliates and_4

Unconsolidated Affiliates and Noncontrolling Interests - Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
ASSETS
Investment in real estate assets	$ 2,025,289		$ 2,025,289		$ 2,089,262
Accumulated depreciation	(658,163)		(658,163)		(618,922)
Real estate investment net, before development in process	1,367,126		1,367,126		1,470,340
Developments in progress	68,768		68,768		36,765
Net investment in real estate assets	1,435,894		1,435,894		1,507,105
Other assets	186,912		186,912		201,114
Total assets	1,622,806		1,622,806		1,708,219
LIABILITIES
Mortgage and other indebtedness, net	1,322,144		1,322,144		1,248,817
Other liabilities	42,986		42,986		41,291
Total liabilities	1,365,130		1,365,130		1,290,108
OWNERS' EQUITY
The Company	183,392		183,392		216,292
Other investors	74,284		74,284		201,819
Total owners' equity	257,676		257,676		418,111
Total liabilities and owners' equity	1,622,806		1,622,806		$ 1,708,219
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Total revenues	54,579	$ 57,395	166,843	$ 175,250
Net income	(85,136)	7,868	(72,585)	24,980
Parent Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net income	$ 1,762	$ 4,706	$ 9,869	$ 16,404

Unconsolidated Affiliates and_5

Unconsolidated Affiliates and Noncontrolling Interests - Loan Activity of Unconsolidated Affiliate (Details) $ in Thousands	1 Months Ended			9 Months Ended
	Jun. 30, 2018USD ($)	May 31, 2018USD ($)	Apr. 30, 2018USD ($)	Sep. 30, 2018extension_option
Schedule of Equity Method Investments [Line Items]
Number of extensions | extension_option				2
Length of extension				1 year
LIBOR
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)				2.00%
CoolSprings Galleria
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)			4.839%	6.98%
Amount Financed or Extended			$ 155,000
Repayments of debt	$ 97,732
Self Storage at Mid Rivers, LLC
Schedule of Equity Method Investments [Line Items]
Amount Financed or Extended			$ 5,987
Amount guaranteed by the operating partnership (as a percent)				100.00%
Self Storage at Mid Rivers, LLC | LIBOR
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)			2.75%
Hammock Landing - Phase I
Schedule of Equity Method Investments [Line Items]
Amount Financed or Extended		$ 41,997
Hammock Landing - Phase I | LIBOR
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)		2.25%
Hammock Landing - Phase II
Schedule of Equity Method Investments [Line Items]
Amount Financed or Extended		$ 16,217
Hammock Landing - Phase II | LIBOR
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)		2.25%
The Pavilion at Port Orange
Schedule of Equity Method Investments [Line Items]
Amount Financed or Extended		$ 56,738
Amount guaranteed by the operating partnership (as a percent)				50.00%
The Pavilion at Port Orange | LIBOR
Schedule of Equity Method Investments [Line Items]
Stated Interest Rate (as a percent)		2.25%

Unconsolidated Affiliates and_6

Unconsolidated Affiliates and Noncontrolling Interests - Loan Repayment (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jun. 30, 2018	Sep. 30, 2018	Apr. 30, 2018
Schedule of Equity Method Investments [Line Items]
Net proceeds from fixed-rate loan		$ 155,000
CoolSprings Galleria
Schedule of Equity Method Investments [Line Items]
Interest rate (as a percent)		6.98%	4.839%
Repayments of debt	$ 97,732

Unconsolidated Affiliates and_7

Unconsolidated Affiliates and Noncontrolling Interests - Noncontrolling Interests (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Operating Partnership
Schedule of Equity Method Investments [Line Items]
Noncontrolling interests	$ 67,476	$ 86,773
Other consolidated subsidiaries
Schedule of Equity Method Investments [Line Items]
Noncontrolling interests	11,799	9,701
Unconsolidated Properties
Schedule of Equity Method Investments [Line Items]
Noncontrolling interests	$ 79,275	$ 96,474

Unconsolidated Affiliates and_8

Unconsolidated Affiliates and Noncontrolling Interests - Variable Interest Entities (Details) $ in Thousands	Sep. 30, 2018USD ($)
Ambassador Infrastructure, LLC
Noncontrolling Interest [Line Items]
Investment in Real Estate Joint Ventures and Partnerships	$ 0
Maximum Risk of Loss	$ 10,605
Debt guaranteed (as a percent)	100.00%
EastGate Storage, LLC
Noncontrolling Interest [Line Items]
Investment in Real Estate Joint Ventures and Partnerships	$ 1,215
Maximum Risk of Loss	6,500
G&I VIII CBL Triangle LLC
Noncontrolling Interest [Line Items]
Investment in Real Estate Joint Ventures and Partnerships	0
Maximum Risk of Loss	0
Self Storage at Mid Rivers, LLC
Noncontrolling Interest [Line Items]
Investment in Real Estate Joint Ventures and Partnerships	1,061
Maximum Risk of Loss	5,987
Shoppes at Eagle Point, LLC
Noncontrolling Interest [Line Items]
Investment in Real Estate Joint Ventures and Partnerships	17,519
Maximum Risk of Loss	$ 36,400

Mortgage and Other Indebtedne_3

Mortgage and Other Indebtedness, Net - Narrative (Details)	1 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2018USD ($)	Sep. 30, 2018USD ($)extension_optionloancredit_line	Dec. 31, 2017	Jun. 04, 2018USD ($)
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		5.04%	4.74%
Principal maturities in 2018		$ 411,284,000
Principal maturities in 2020		$ 661,816,000
Weighted-average maturity period		3 years 10 months 10 days	4 years 4 months 24 days
Unsecured lines of credit
Debt Instrument [Line Items]
Number of unsecured term loans | credit_line		3
Variable rate (as a percent)		1.55%
Annual facility fee (as a percent)		0.30%
Aggregate capacity of the three unsecured lines of credit		$ 1,100,000,000
Unsecured lines of credit | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)		0.875%
Annual facility fee (as a percent)		0.125%
Unsecured lines of credit | Maximum
Debt Instrument [Line Items]
Variable rate (as a percent)		1.55%
Annual facility fee (as a percent)		0.30%
Unsecured Term Loan 2
Debt Instrument [Line Items]
Variable rate (as a percent)		1.75%
Face amount of debt instrument		$ 350,000,000
Interest rate (as a percent)		3.85%
Unsecured Term Loan 1
Debt Instrument [Line Items]
Variable rate (as a percent)		2.00%
Face amount of debt instrument		$ 300,000,000
Option extension term of debt instrument		1 year
Interest rate (as a percent)		4.10%
Number of extension options available | extension_option		2
Unsecured Term Loan 3
Debt Instrument [Line Items]
Variable rate (as a percent)		1.65%
Face amount of debt instrument		$ 45,000,000
Interest rate (as a percent)		3.75%
Operating property loan
Debt Instrument [Line Items]
Principal maturities in 2018		$ 43,716,000
Unsecured Term Loan
Debt Instrument [Line Items]
Number of unsecured term loans | loan		1
Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		5.37%	5.37%
Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		3.95%	2.90%
Unsecured Debt
Debt Instrument [Line Items]
Number of unsecured term loans | loan		3
Senior Notes Due 2026
Debt Instrument [Line Items]
Face amount of debt instrument		$ 625,000,000
Senior Notes Due 2026 | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		5.95%	5.95%
Senior Notes Due 2024
Debt Instrument [Line Items]
Face amount of debt instrument		$ 300,000,000
Senior Notes Due 2024 | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		4.60%	4.60%
Unsecured lines of credit | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		3.65%	2.56%
Non-recourse loans on operating properties
Debt Instrument [Line Items]
Face amount of debt instrument				$ 43,716,000
Default minimum of debt instrument		$ 50,000,000
Non-recourse loans on operating properties | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		5.33%	5.33%
Non-recourse loans on operating properties | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		0.00%	3.37%
Recourse loans on operating properties
Debt Instrument [Line Items]
Default minimum of debt instrument		$ 150,000,000
Recourse loans on operating properties | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)		4.73%	4.00%
Principal amortization
Debt Instrument [Line Items]
Principal maturities in 2018		$ 17,568,000
Cary Towne Center | Unsecured Term Loan
Debt Instrument [Line Items]
Principal maturities in 2018		$ 350,000,000
Hickory Point Mall
Debt Instrument [Line Items]
Amount financed	$ 27,446,000

Mortgage and Other Indebtedne_4

Mortgage and Other Indebtedness, Net - Mortgage and Other Indebtedness (Details)	9 Months Ended
	Sep. 30, 2018USD ($)extension_option	Jun. 04, 2018USD ($)	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Fixed-rate debt, Amount	$ 3,160,776,000		$ 3,158,973,000
Variable-rate debt, Amount	970,508,000		1,090,810,000
Total fixed-rate and variable-rate debt	$ 4,131,284,000		$ 4,249,783,000
Weighted-average interest rate (as a percent)	5.04%		4.74%
Unamortized deferred financing costs	$ (15,476,000)		$ (18,938,000)
Total mortgage and other indebtedness, net	$ 4,115,808,000		$ 4,230,845,000
Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.37%		5.37%
Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	3.95%		2.90%
Unsecured Term Loan
Debt Instrument [Line Items]
Face amount of debt instrument	$ 695,000,000
Variable-rate debt, Amount	$ 695,000,000		$ 885,000,000
Unsecured Term Loan | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	3.96%		2.81%
Non-recourse loans on operating properties
Debt Instrument [Line Items]
Face amount of debt instrument		$ 43,716,000
Fixed-rate debt, Amount	$ 1,797,080,000		$ 1,796,203,000
Variable-rate debt, Amount	$ 0		$ 10,836,000
Non-recourse loans on operating properties | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.33%		5.33%
Non-recourse loans on operating properties | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	0.00%		3.37%
Senior Notes Due 2023
Debt Instrument [Line Items]
Face amount of debt instrument	$ 450,000,000
Fixed-rate debt, Amount	447,309,000		$ 446,976,000
Unamortized debt discount	$ 2,691,000		$ 3,024,000
Senior Notes Due 2023 | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.25%		5.25%
Senior Notes Due 2024
Debt Instrument [Line Items]
Face amount of debt instrument	$ 300,000,000
Fixed-rate debt, Amount	299,951,000		$ 299,946,000
Unamortized debt discount	$ 49,000		$ 54,000
Senior Notes Due 2024 | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	4.60%		4.60%
Senior Notes Due 2026
Debt Instrument [Line Items]
Face amount of debt instrument	$ 625,000,000
Fixed-rate debt, Amount	616,436,000		$ 615,848,000
Unamortized debt discount	$ 8,564,000		$ 9,152,000
Senior Notes Due 2026 | Fixed Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.95%		5.95%
Recourse loans on operating properties
Debt Instrument [Line Items]
Variable-rate debt, Amount	$ 74,150,000		$ 101,187,000
Recourse loans on operating properties | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	4.73%		4.00%
Unsecured lines of credit
Debt Instrument [Line Items]
Variable-rate debt, Amount	$ 201,358,000		$ 93,787,000
Unsecured lines of credit | Variable Rate Interest
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	3.65%		2.56%
Unsecured Term Loan 2
Debt Instrument [Line Items]
Face amount of debt instrument	$ 350,000,000
Variable rate (as a percent)	1.75%
Interest rate (as a percent)	3.85%
Unsecured Term Loan 1
Debt Instrument [Line Items]
Face amount of debt instrument	$ 300,000,000
Variable rate (as a percent)	2.00%
Interest rate (as a percent)	4.10%
Number of extension options available | extension_option	2
Option extension term of debt instrument	1 year
Unsecured Term Loan 3
Debt Instrument [Line Items]
Face amount of debt instrument	$ 45,000,000
Variable rate (as a percent)	1.65%
Interest rate (as a percent)	3.75%

Mortgage and Other Indebtedne_5

Mortgage and Other Indebtedness, Net - Senior Unsecured Notes (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.04%	4.74%
Minimum
Debt Instrument [Line Items]
Notice required to redeem debt, term	30 days
Maximum
Debt Instrument [Line Items]
Notice required to redeem debt, term	60 days
Interest Rate
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.37%	5.37%
Senior Notes Due 2023
Debt Instrument [Line Items]
Amount	$ 450,000,000
Senior Notes Due 2023 | Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.40%
Senior Notes Due 2023 | Interest Rate
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.25%	5.25%
Senior Notes Due 2024
Debt Instrument [Line Items]
Amount	$ 300,000,000
Senior Notes Due 2024 | Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.35%
Senior Notes Due 2024 | Interest Rate
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	4.60%	4.60%
Senior Notes Due 2026
Debt Instrument [Line Items]
Amount	$ 625,000,000
Senior Notes Due 2026 | Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate	0.50%
Senior Notes Due 2026 | Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%
Senior Notes Due 2026 | Interest Rate
Debt Instrument [Line Items]
Weighted-average interest rate (as a percent)	5.95%	5.95%
Senior Notes Due 2023 and 2024 | Minimum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%
Senior Notes Due 2023 and 2024 | Maximum
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	45.00%
Senior Notes Due 2023 and 2024 | Interest Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate	0.25%
Senior Notes Due 2023 and 2024 | Interest Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate	1.00%
Senior Unsecured Notes | Actual
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	24.00%

Mortgage and Other Indebtedne_6

Mortgage and Other Indebtedness, Net - Unsecured Lines of Credit (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total Outstanding	$ 970,508,000	$ 1,090,810,000
Wells Fargo Bank
Debt Instrument [Line Items]
Extension fee rate (as a percent)	0.15%
Wells Fargo Bank | Letter of Credit
Debt Instrument [Line Items]
Total Capacity	$ 30,000,000
First Tennessee Bank
Debt Instrument [Line Items]
Total Capacity	20,000,000
Wells Fargo - Facility A
Debt Instrument [Line Items]
Total Capacity	500,000,000
Total Outstanding	0
First Tennessee
Debt Instrument [Line Items]
Total Capacity	100,000,000
Total Outstanding	$ 47,695,000
First Tennessee | Wells Fargo Bank
Debt Instrument [Line Items]
Extension fee rate (as a percent)	0.20%
Wells Fargo - Facility B
Debt Instrument [Line Items]
Total Capacity	$ 500,000,000
Total Outstanding	153,663,000
Wells Fargo - Facility B | Letter of Credit
Debt Instrument [Line Items]
Total Capacity	4,833,000
Unsecured lines of credit
Debt Instrument [Line Items]
Total Capacity	1,100,000,000
Total Outstanding	$ 201,358,000

Mortgage and Other Indebtedne_7

Mortgage and Other Indebtedness, Net - Compliance with Key Covenant Ratios of Credit Facilities and Term Loans (Details) - Unsecured Credit Facility and Term Loan $ in Thousands	Sep. 30, 2018USD ($)
Unsecured Term Loan 2
Debt Instrument [Line Items]
Remaining borrowing capacity of credit facility	$ 697,627
Current borrowing capacity of credit facility	$ 491,436
Required
Debt Instrument [Line Items]
Debt to total asset value (as a percent)	60.00%
Total unencumbered assets to unsecured debt (as a percent)	60.00%
Unencumbered NOI to unsecured interest expense (as a percent)	175.00%
EBITDA to fixed charges (debt service) (as a percent)	150.00%
Actual
Debt Instrument [Line Items]
Debt to total asset value (as a percent)	53.00%
Total unencumbered assets to unsecured debt (as a percent)	49.00%
Unencumbered NOI to unsecured interest expense (as a percent)	260.00%
EBITDA to fixed charges (debt service) (as a percent)	230.00%

Mortgage and Other Indebtedne_8

Mortgage and Other Indebtedness, Net - Compliance with Key Covenant Ratios of Notes (Details)	Sep. 30, 2018
Minimum | Senior Notes Due 2023 and 2024
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%
Minimum | Senior Notes Due 2026
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	40.00%
Maximum | Senior Notes Due 2023 and 2024
Debt Instrument [Line Items]
Secured debt to total assets (as a percent)	45.00%
Required | Senior Unsecured Notes
Debt Instrument [Line Items]
Total debt to total assets (as a percent)	60.00%
Secured debt to total assets (as a percent)	40.00%
Total unencumbered assets to unsecured debt (as a percent)	150.00%
Consolidated income available for debt service to annual debt service charge (as a percent)	150.00%
Actual | Senior Unsecured Notes
Debt Instrument [Line Items]
Total debt to total assets (as a percent)	52.00%
Secured debt to total assets (as a percent)	24.00%
Total unencumbered assets to unsecured debt (as a percent)	215.00%
Consolidated income available for debt service to annual debt service charge (as a percent)	270.00%

Mortgage and Other Indebtedne_9

Mortgage and Other Indebtedness, Net - Financings (Details) - The Outlet Shoppes At El Paso - USD ($) $ in Thousands	1 Months Ended
	Apr. 30, 2018	Sep. 30, 2018
Debt Instrument [Line Items]
Stated Interest Rate (as a percent)		5.10%
Amount Financed	$ 75,000

Mortgage and Other Indebtedn_10

Mortgage and Other Indebtedness, Net - Repaid Loans (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jan. 31, 2018	Sep. 30, 2018
Debt Instrument [Line Items]
Principal Balance Repaid		$ 54,573
Malls | Kirkwood Mall
Debt Instrument [Line Items]
Interest rate (as a percent)	5.75%
Principal Balance Repaid	$ 37,295
Malls | The Outlet Shoppes at El Paso - Phase II
Debt Instrument [Line Items]
Interest rate (as a percent)	4.73%
Principal Balance Repaid	$ 6,525
Other | Statesboro Crossing
Debt Instrument [Line Items]
Interest rate (as a percent)	4.24%
Principal Balance Repaid	$ 10,753

Mortgage and Other Indebtedn_11

Mortgage and Other Indebtedness, Net - Principal Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule of principal repayments [Abstract]
2,018	$ 411,284
2,019	309,346
2,020	661,816
2,021	499,321
2,022	432,546
Thereafter	1,706,132
Mortgage and other indebtedness	4,020,445
Unamortized discounts	(11,304)
Unamortized deferred financing costs	(15,476)	$ (18,938)
Total mortgage and other indebtedness, net	4,115,808	$ 4,230,845
Acadiana Mall | Mortgages
Schedule of principal repayments [Abstract]
Total mortgage and other indebtedness, net	$ 122,143

Mortgage and Other Notes Rece_3

Mortgage and Other Notes Receivable - Summary (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
		Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Assignment of the partnership interest (as a percent)		100.00%
Mortgage and Other Notes Receivable [Line Items]
Balance	[1]	$ 8,171	$ 8,945
Mortgages
Mortgage and Other Notes Receivable [Line Items]
Balance		$ 5,189	$ 5,418
Mortgages | Columbia Place Outparcel
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		5.00%	5.00%
Balance		$ 288	$ 302
Mortgages | One Park Place
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		5.00%	5.00%
Balance		$ 837	$ 1,010
Mortgages | Village Square
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		4.00%	4.00%
Balance		$ 1,554	$ 1,596
Mortgages | Other
Mortgage and Other Notes Receivable [Line Items]
Balance		$ 2,510	$ 2,510
Mortgages | Other | Minimum
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		4.73%	4.07%
Mortgages | Other | Maximum
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		9.50%	9.50%
Mortgages | The Promenade at Dlberville
Mortgage and Other Notes Receivable [Line Items]
Balance		$ 1,100
Other Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Balance		$ 2,982	$ 3,527
Other Notes Receivable | ERMC
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		4.00%	4.00%
Balance		$ 2,354	$ 2,855
Other Notes Receivable | Southwest Theaters LLC
Mortgage and Other Notes Receivable [Line Items]
Interest Rate (as a percent)		5.00%	5.00%
Balance		$ 628	$ 672
[1]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.

Segment Information - Summary (

Segment Information - Summary (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues		$ 206,878	$ 224,650	$ 641,676	$ 691,896
Property operating expenses		(60,912)	(64,122)	(190,807)	(194,915)
Interest expense		(55,194)	(53,913)	(163,164)	(165,179)
Other expense		(38)	(132)	(377)	(5,151)
Gain on sales of real estate assets		7,880	1,383	15,998	86,904
Segment profit (loss)		98,614	107,866	303,326	413,555
Depreciation and amortization expense		(71,945)	(71,732)	(217,261)	(225,461)
General and administrative expense		(16,051)	(13,568)	(47,845)	(45,402)
Interest and other income (loss)		283	(200)	714	1,235
Gain on extinguishment of debt		0	6,452	0	30,927
Loss on impairment		(14,600)	(24,935)	(84,644)	(71,401)	$ (67,532)
Gain (loss) on investments		0	(354)	387	(6,197)
Income tax benefit (provision)		(1,034)	1,064	1,846	4,784
Equity in earnings of unconsolidated affiliates		1,762	4,706	9,869	16,404
Net loss		(2,971)	9,299	(33,608)	118,444
Capital expenditures		41,183	48,281	115,656	131,878
Total Assets	[1]	5,491,019		5,491,019		5,704,808
Malls
Segment Reporting Information [Line Items]
Revenues		188,440	205,020	585,097	632,830
Property operating expenses		(57,243)	(59,602)	(179,012)	(182,926)
Interest expense		(24,665)	(28,922)	(76,401)	(93,481)
Other expense		0	0	(84)	0
Gain on sales of real estate assets		92	(1,994)	92	75,434
Segment profit (loss)		106,624	114,502	329,692	431,857
Capital expenditures		38,512	47,246	105,593	126,290
Total Assets		4,979,583		4,979,583		5,152,789
All Other
Segment Reporting Information [Line Items]
Revenues		18,438	19,630	56,579	59,066
Property operating expenses		(3,669)	(4,520)	(11,795)	(11,989)
Interest expense		(30,529)	(24,991)	(86,763)	(71,698)
Other expense		(38)	(132)	(293)	(5,151)
Gain on sales of real estate assets		7,788	3,377	15,906	11,470
Segment profit (loss)		(8,010)	(6,636)	(26,366)	(18,302)
Capital expenditures		2,671	$ 1,035	10,063	$ 5,588
Total Assets		$ 511,436		$ 511,436		$ 552,019
[1]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.

Earnings per Share and Earnin_2

Earnings per Share and Earnings per Unit - Narrative (Details)	9 Months Ended
	Sep. 30, 2018shares
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from the computation of EPS (shares)	172,563,094
CBL & Associates Limited Partnership
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from the computation of EPS (shares)	199,767,094
Performance Stock Units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Contingently issuable stock (shares)	137,094
Performance Stock Units | CBL & Associates Limited Partnership
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Contingently issuable stock (shares)	137,094

Contingencies - Environmental C

Contingencies - Environmental Contingencies (Details)	9 Months Ended
	Sep. 30, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Environmental liability insurance, maximum coverage per incident (up to)	$ 10,000,000
Environmental liability insurance, annual coverage limit (up to)	$ 50,000,000

Contingencies - Guarantees (Det

Contingencies - Guarantees (Details)	9 Months Ended
	Sep. 30, 2018USD ($)extension_option	Dec. 31, 2017USD ($)
Guarantor Obligations [Line Items]
Obligation Recorded to Reflect Guaranty	$ 1,166,000	$ 841,000
Total amount outstanding on bonds	$ 17,309,000	16,998,000
West Melbourne I, LLC - Phase I
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 41,737,000
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 20,869,000
Obligation Recorded to Reflect Guaranty	$ 209,000	86,000
West Melbourne I, LLC - Phase II
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 16,097,000
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 8,049,000
Obligation Recorded to Reflect Guaranty	$ 80,000	33,000
Port Orange I, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 56,366,000
Percentage Guaranteed by the Operating Partnership (as a percent)	50.00%
Maximum Guaranteed Amount	$ 28,183,000
Obligation Recorded to Reflect Guaranty	$ 282,000	116,000
Ambassador Infrastructure, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	65.00%
Outstanding Balance	$ 10,605,000
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 10,605,000
Obligation Recorded to Reflect Guaranty	$ 106,000	177,000
Shoppes at Eagle Point, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 32,679,000
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 36,400,000
Obligation Recorded to Reflect Guaranty	$ 364,000	364,000
Reduction of guarantor obligations once construction is complete (as a percent)	35.00%
Number of extension options available | extension_option	1
Option extension term of debt instrument	2 years
EastGate Storage, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 4,162,000
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 6,500,000
Obligation Recorded to Reflect Guaranty	$ 65,000	65,000
Reduction of guarantor obligations once construction is complete (as a percent)	50.00%
Reduction of guarantor obligations once certain debt and operational metrics are met (as a percent)	25.00%
Self Storage at Mid Rivers, LLC
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Outstanding Balance	$ 2,021,000
Percentage Guaranteed by the Operating Partnership (as a percent)	100.00%
Maximum Guaranteed Amount	$ 5,987,000
Obligation Recorded to Reflect Guaranty	$ 60,000	$ 0
Reduction of guarantor obligations once construction is complete (as a percent)	50.00%
Reduction of guarantor obligations once certain debt and operational metrics are met (as a percent)	25.00%
Guaranty fee (as a percent)	1.00%
York Town Center, LP
Guarantor Obligations [Line Items]
Company's Ownership Interest (as a percent)	50.00%
Maximum guaranteed amount of YTC's performance	$ 22,000,000
Annual reductions to guarantors obligations	800,000
Guaranteed minimum exposure amount	10,000,000
Maximum guaranteed obligation	$ 13,200,000
Reimburse obligations (as a percent)	50.00%

Share-Based Compensation - Summ

Share-Based Compensation - Summary (Details) $ / shares in Units, $ in Thousands	Feb. 12, 2018$ / sharesshares	Feb. 07, 2017$ / sharesshares	Feb. 10, 2016$ / shares	Sep. 30, 2018USD ($)$ / sharesshares	Sep. 30, 2017USD ($)	Sep. 30, 2018USD ($)installment$ / sharesshares	Sep. 30, 2017USD ($)	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under plan (shares)				10,400,000		10,400,000
Share-based compensation cost capitalized as part of real estate assets | $				$ 36	$ 94	$ 260	$ 308
Weighted-Average Grant Date Fair Value
Unrecognized compensation cost related to nonvested stock awards | $				$ 5,443		$ 5,443
Compensation cost to be recognized over a weighted-average period						2 years 6 months 25 days
Number of shares authorized to be granted annually (shares)				200,000		200,000
Vested at conclusion of performance period
Weighted-Average Grant Date Fair Value
Vesting rate (as a percent)						60.00%
Remaining percentage after performance period
Weighted-Average Grant Date Fair Value
Vesting rate (as a percent)						40.00%
Vested each year for the first two anniversaries after conclusion of performance period
Weighted-Average Grant Date Fair Value
Vesting rate (as a percent)						20.00%
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $				$ 787	812	$ 3,263	3,175
Shares
Nonvested, beginning of period (shares)						642,359
Granted (shares)						693,064
Vested (shares)						(413,032)
Forfeited (shares)						(8,852)
Nonvested, end of period (shares)				913,539		913,539
Weighted-Average Grant Date Fair Value
Weighted-average grant date fair value, nonvested, beginning of period (USD per share) | $ / shares						$ 13.23
Weighted-average grant date fair value, granted (USD per share) | $ / shares						4.55
Weighted-average grant date fair value, vested (USD per share) | $ / shares						9.64
Weighted-average grant date fair value, forfeited (USD per share) | $ / shares						9.36
Weighted-average grant date fair value, nonvested, end of period (USD per share) | $ / shares				$ 8.30		$ 8.30
Number of annual installment for awards to vest (installment) | installment						4
Restricted Stock Awards | Vested on date of grant
Weighted-Average Grant Date Fair Value
Vesting rate (as a percent)						20.00%
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $				$ 178	$ 386	$ 1,130	$ 1,115
Shares
Nonvested, beginning of period (shares)						560,371
Granted (shares)						741,977
Forfeited (shares)						(138,899)
Nonvested, end of period (shares)				1,163,449		1,163,449
Weighted-Average Grant Date Fair Value
Weighted-average grant date fair value, nonvested, beginning of period (USD per share) | $ / shares						$ 5.91
Weighted-average grant date fair value, granted (USD per share) | $ / shares						2.63
Weighted-average grant date fair value, forfeited (USD per share) | $ / shares						4.22
Weighted-average grant date fair value, nonvested, end of period (USD per share) | $ / shares	$ 4.76	$ 6.86	$ 4.98	$ 4.55		$ 4.55
Unrecognized compensation cost related to nonvested stock awards | $				$ 3,141		$ 3,141
Compensation cost to be recognized over a weighted-average period						3 years 7 months 40 days
Performance period						3 years		3 years
Risk-free interest rate (as a percent)	2.36%	1.53%	0.92%
Expected share price volatility (as a percent)	42.02%	32.85%	30.95%
Total stockholder return to the national association of real estate investment trusts retail index (as a percent)						66.67%
Absolute total stockholder return metrics (as a percent)						33.33%
Performance Stock Units | Chief Executive Officer
Shares
Granted (shares)	240,164	115,082
Weighted-Average Grant Date Fair Value
Weighted-average grant date fair value, nonvested, end of period (USD per share) | $ / shares	$ 3.13	$ 5.62
Performance Stock Units | Officer
Shares
Granted (shares)	120,064	162,294
Weighted-Average Grant Date Fair Value
Weighted-average grant date fair value, nonvested, end of period (USD per share) | $ / shares	$ 1.63	$ 7.74

Noncash Investing and Financi_3

Noncash Investing and Financing Activities - Summary (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Real Estate Investments, Net [Abstract]
Accrued dividends and distributions payable	$ 41,657	$ 54,375
Additions to real estate assets accrued but not yet paid	22,428	12,204
Conversion of Operating Partnership units for common stock	3,059	0
Deconsolidation upon contribution/assignment of interests in joint venture:
Decrease in noncontrolling interest and joint venture interest		2,232
Outlet Shoppes at Atlanta - Ridgewalk
Deconsolidation upon contribution/assignment of interests in joint venture:
Decrease in real estate assets	0	(149,722)
Decrease in mortgage and other indebtedness	0	189,642
Transfer of real estate assets in settlement of mortgage debt obligation:
Decrease in real estate assets	0	(149,722)
Decrease in mortgage and other indebtedness	0	189,642
Decrease in operating assets and liabilities	0	(122)
Corporate Joint Venture
Deconsolidation upon contribution/assignment of interests in joint venture:
Decrease in real estate assets	(587)	(9,131)
Increase in investment in unconsolidated affiliates	974	0
Decrease in mortgage and other indebtedness	0	2,466
Decrease in operating assets and liabilities	0	1,286
Decrease in noncontrolling interest and joint venture interest	0	2,232
Transfer of real estate assets in settlement of mortgage debt obligation:
Decrease in real estate assets	(587)	(9,131)
Decrease in mortgage and other indebtedness	$ 0	$ 2,466

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - USD ($)		1 Months Ended	9 Months Ended
		Oct. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Sales price, gross			$ 48,500,000
Mortgage and other notes receivable	[1]		8,171,000	$ 8,945,000
Unsecured Term Loan 2
Subsequent Event [Line Items]
Face amount of debt instrument			$ 350,000,000
Variable rate (as a percent)			1.75%
Other | Parkway Plaza | Subsequent Event
Subsequent Event [Line Items]
Sales price, gross		$ 16,500,000
Mortgages
Subsequent Event [Line Items]
Mortgage and other notes receivable			$ 5,189,000	5,418,000
Mortgages | Village Square
Subsequent Event [Line Items]
Mortgage and other notes receivable			$ 1,554,000	$ 1,596,000
Construction Loans | Subsequent Event
Subsequent Event [Line Items]
Face amount of debt instrument		$ 29,400,000
Term of debt instrument		3 years
Option extension term of debt instrument		1 year
LIBOR | Construction Loans | Subsequent Event
Subsequent Event [Line Items]
Variable rate (as a percent)		2.90%
[1]	As of September 30, 2018, includes $621,616 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $414,923 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 6.