Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Apr. 01, 2021	Jun. 30, 2020
Document And Entity Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Registrant Name	CBL & ASSOCIATES PROPERTIES, INC.
Entity Central Index Key	0000910612
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 46,454,718
Entity Common Stock, Shares Outstanding		196,458,778
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity File Number	1-12494
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	62-1545718
Entity Address, Address Line One	2030 Hamilton Place Blvd.
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Chattanooga
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37421
City Area Code	423
Local Phone Number	855.0001
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference [Text Block]	Portions of CBL & Associates Properties, Inc.’s Proxy Statement for the 2021 Annual Meeting of Stockholders are incorporated by reference in Part III.
CBL & Associates Limited Partnership
Document And Entity Information [Line Items]
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Entity Registrant Name	CBL & ASSOCIATES LIMITED PARTNERSHIP
Entity Central Index Key	0000915140
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity File Number	333-182515-01
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	62-1542285
Entity Address, Address Line One	2030 Hamilton Place Blvd.
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Chattanooga
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37421
City Area Code	423
Local Phone Number	855.0001
Common Stock, $0.01 par value
Document And Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CBLAQ
7.375% Series D Cumulative Redeemable Preferred Stock, $0.01 par value
Document And Entity Information [Line Items]
Title of 12(b) Security	7.375% Series D Cumulative Redeemable Preferred Stock, $0.01 par value (represented by depositary shares each representing a 1/10th fractional share)
Trading Symbol	CBLDQ
6.625% Series E Cumulative Redeemable Preferred Stock, $0.01 par value
Document And Entity Information [Line Items]
Title of 12(b) Security	6.625% Series E Cumulative Redeemable Preferred Stock, $0.01 par value (represented by depositary shares each representing a 1/10th fractional share)
Trading Symbol	CBLEQ