Earnings per Share and Earnings per Unit - Narrative (Details) - shares	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Potentially dilutive securities excluded from the computation of EPS (shares)	0	0	0	0
Antidilutive securities excluded from the computation of EPS (shares)	0	0	0
Weighted Average Number of Shares Outstanding, Diluted (shares)		172,563,094
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements (shares)		137,094
CBL & Associates Limited Partnership \| Common Units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Potentially dilutive securities excluded from the computation of EPS (shares)	0		0	0
Antidilutive securities excluded from the computation of EPS (shares)	0	0	0
Weighted Average Number of Shares Outstanding, Diluted (shares)		199,767,094
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements (shares)		137,094

Potentially Dilutive Securities Excluded from Computation of Earnings Per Share, Amount

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 28A
-URI http://asc.fasb.org/extlink&oid=117326831&loc=d3e1500-109256

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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