Condensed Consolidated Statements of Capital - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Beginning balance of redeemable noncontrolling partnership interests			$ (265)
Redeemable Noncontrolling Interests
Cancellation of shares of restricted common stock	$ (8)	$ (18)	(1)	$ (1)	$ (14)	$ (97)
Performance stock units	93	94	93	2,420	379	390
Amortization of deferred compensation	252	256	304	375	384	633
Distributions to noncontrolling interests		(343)	(11)	(11)	(94)	(731)
Contributions from noncontrolling interests	298				25	668
Ending balance of redeemable noncontrolling partnership interests	(871)
Total Shareholders' Equity
Redeemable Noncontrolling Interests
Cancellation of shares of restricted common stock	(8)	(18)	(1)	(1)	(14)	(97)
Performance stock units	93	94	93	2,420	379	390
Amortization of deferred compensation	252	256	304	375	384	633
Noncontrolling Interests
Redeemable Noncontrolling Interests
Distributions to noncontrolling interests		(343)	(11)	(11)	(94)	(731)
Contributions from noncontrolling interests	298				25	668
CBL & Associates Limited Partnership
Beginning balance, partners' capital	497,363	506,896	534,578	653,735	725,374	862,154
Beginning balance of redeemable noncontrolling partnership interests			(265)
Redeemable Noncontrolling Interests
Net income (loss)	(42,551)	(9,491)	(28,067)	(44,002)	(72,139)	(138,136)
Other comprehensive income (loss)	13	(27)	3	75	(64)	22
Issuances of common units					2	536
Cancellation of shares of restricted common stock	(8)	(17)	(1)		(14)	(97)
Performance stock units	104	95	91	2,419	379	390
Amortization of deferred compensation	252	257	303	379	384	633
Allocation of partners' capital	(12)	(7)		(92)	(118)	(65)
Distributions to noncontrolling interests		(343)	(11)	(12)	(94)	(731)
Contributions from noncontrolling interests	298				25	668
Ending balance, partners' capital	455,459	497,363	506,896	612,502	653,735	725,374
Ending balance of redeemable noncontrolling partnership interests	(871)
CBL & Associates Limited Partnership \| CBL & Associates Limited Partnership Redeemable Common Units
Beginning balance of redeemable noncontrolling partnership interests	(543)	(478)	(265)	525	1,062	2,160
Redeemable Noncontrolling Interests
Net income (loss)	(330)	(70)	(213)	(422)	(654)	(1,158)
Allocation of partners' capital	2	5		90	117	60
Ending balance of redeemable noncontrolling partnership interests	(871)	(543)	(478)	193	525	1,062
CBL & Associates Limited Partnership \| Accumulated Other Comprehensive Income (Loss)
Beginning balance, partners' capital	(6)	21	18	(42)	22
Redeemable Noncontrolling Interests
Other comprehensive income (loss)	13	(27)	3	75	(64)	22
Ending balance, partners' capital	7	(6)	21	33	(42)	22
CBL & Associates Limited Partnership \| Total Shareholders' Equity
Beginning balance, partners' capital	495,927	504,668	531,520	630,600	701,683	838,193
Redeemable Noncontrolling Interests
Net income (loss)	(42,475)	(9,042)	(27,248)	(43,065)	(71,652)	(137,929)
Other comprehensive income (loss)	13	(27)	3	75	(64)	22
Issuances of common units					2	536
Cancellation of shares of restricted common stock	(8)	(17)	(1)		(14)	(97)
Performance stock units	104	95	91	2,419	379	390
Amortization of deferred compensation	252	257	303	379	384	633
Allocation of partners' capital	(12)	(7)		(92)	(118)	(65)
Ending balance, partners' capital	453,801	495,927	504,668	590,316	630,600	701,683
CBL & Associates Limited Partnership \| Noncontrolling Interests
Beginning balance, partners' capital	1,436	2,228	3,058	23,135	23,691	23,961
Redeemable Noncontrolling Interests
Net income (loss)	(76)	(449)	(819)	(937)	(487)	(207)
Distributions to noncontrolling interests		(343)	(11)	(12)	(94)	(731)
Contributions from noncontrolling interests	298				25	668
Ending balance, partners' capital	1,658	1,436	2,228	22,186	23,135	23,691
CBL & Associates Limited Partnership \| General Partner
Beginning balance, partners' capital	(697)	(609)	(339)	658	1,372	2,765
Redeemable Noncontrolling Interests
Net income (loss)	(434)	(92)	(277)	(437)	(728)	(1,406)
Performance stock units	8	1	4	24	4	4
Amortization of deferred compensation	2	3	3	8	11	18
Allocation of partners' capital				(1)	(1)	(1)
Adjustment to record redeemable interests at redemption value						(8)
Ending balance, partners' capital	(1,121)	(697)	(609)	252	658	1,372
CBL & Associates Limited Partnership \| Limited Partner
Beginning balance, partners' capital	(68,582)	(59,956)	(33,371)	64,772	135,077	270,216
Redeemable Noncontrolling Interests
Net income (loss)	(42,041)	(8,950)	(26,971)	(42,628)	(70,924)	(136,523)
Issuances of common units					2	536
Cancellation of shares of restricted common stock	(8)	(17)	(1)		(14)	(97)
Performance stock units	96	94	87	2,395	375	386
Amortization of deferred compensation	250	254	300	371	373	615
Allocation of partners' capital	(12)	(7)		(91)	(117)	(64)
Adjustment to record redeemable interests at redemption value						8
Ending balance, partners' capital	(110,297)	(68,582)	(59,956)	24,819	64,772	135,077
CBL & Associates Limited Partnership \| Preferred Units
Beginning balance, partners' capital	$ 565,212	$ 565,212	$ 565,212	$ 565,212	$ 565,212	$ 565,212
Beginning balance, partners' capital units (shares)	25,050,000	25,050,000	25,050,000	25,050,000	25,050,000	25,050,000
Redeemable Noncontrolling Interests
Ending balance, partners' capital	$ 565,212	$ 565,212	$ 565,212	$ 565,212	$ 565,212	$ 565,212
Ending balance, partners' capital units (shares)	25,050,000	25,050,000	25,050,000	25,050,000	25,050,000	25,050,000
CBL & Associates Limited Partnership \| Common Units
Beginning balance, partners' capital units (shares)	201,563,000	201,577,000	201,688,000	201,691,000	201,706,000	200,189,000
Redeemable Noncontrolling Interests
Issuance of common units (shares)					6,000	1,633,000
Cancellation of restricted common units (shares)	(8,000)	(14,000)	(111,000)	(1,000)	(21,000)	(116,000)
Ending balance, partners' capital units (shares)	201,555,000	201,563,000	201,577,000	201,690,000	201,691,000	201,706,000

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