Debt Instrument, Interest Rate, Increase (Decrease) in Variable Rate Basis

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Secured Debt to Total Assets

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Notice Required to Redeem Debt, Term

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	credit
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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.

+ References

No definition available.

+ Details

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeBasisSpreadOnVariableRate
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

Name:	us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_VariableRateAxis=cbl_TreasuryRateMember
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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=cbl_SeniorUnsecuredNotesMember
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- Details

Name:	cbl_DebtCovenantsActualVsRequiredAxis=cbl_DebtCovenantRatiosActualMember
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Mortgage and Other Indebtedness, Net (Schedule of Senior Unsecured Notes) (Details) - USD ($)		1 Months Ended	9 Months Ended
	Sep. 01, 2017	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Interest Rate		4.72%	4.72%		4.82%
Additional debt issued			$ 1,097,006,000	$ 614,671,000
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]
Interest Rate		5.37%	5.37%		5.48%
Senior Notes Due 2026
Debt Instrument [Line Items]
Amount		$ 625,000,000	$ 625,000,000
Additional debt issued	$ 225,000,000	$ 225,000,000
Net proceeds from sale of debt	$ 218,913,000
Senior Notes Due 2026 \| Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate		0.50%	0.50%
Senior Notes Due 2026 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets		40.00%	40.00%
Senior Notes Due 2026 \| Interest Rate
Debt Instrument [Line Items]
Interest Rate		5.95%	5.95%		5.95%
Senior Notes Due 2024
Debt Instrument [Line Items]
Amount		$ 300,000,000	$ 300,000,000
Senior Notes Due 2024 \| Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate		0.35%	0.35%
Senior Notes Due 2024 \| Interest Rate
Debt Instrument [Line Items]
Interest Rate		4.60%	4.60%		4.60%
Senior Notes Due 2023
Debt Instrument [Line Items]
Amount		$ 450,000,000	$ 450,000,000
Senior Notes Due 2023 \| Treasury Rate
Debt Instrument [Line Items]
Derivative, basis spread on variable rate		0.40%	0.40%
Senior Notes Due 2023 \| Interest Rate
Debt Instrument [Line Items]
Interest Rate		5.25%	5.25%		5.25%
Senior Notes Due 2023 and 2024 \| Minimum
Debt Instrument [Line Items]
Secured debt to total assets		40.00%	40.00%
Senior Notes Due 2023 and 2024 \| Maximum
Debt Instrument [Line Items]
Secured debt to total assets		45.00%	45.00%
Senior Notes Due 2023 and 2024 \| Interest Rate \| Minimum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate		0.25%	0.25%
Senior Notes Due 2023 and 2024 \| Interest Rate \| Maximum
Debt Instrument [Line Items]
Debt instrument, increase in variable interest rate		1.00%	1.00%
Senior Unsecured Notes \| Actual
Debt Instrument [Line Items]
Secured debt to total assets		24.00%	24.00%
Senior Unsecured Notes \| Interest Rate
Debt Instrument [Line Items]
Interest Rate		5.25%	5.25%