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Schedule IV - MORTGAGE NOTES RECEIVABLE ON REAL ESTATE (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Mortgage Loans on Real Estate [Line Items]
Monthly payment amount	$ 52cbl_MortgageLoansOnRealEstateMonthlyPaymentAmount
Balloon payment at maturity	5,411us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
Face amount of mortgages	11,938us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages
Federal income tax basis	9,323us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1
Principal amount of mortgage subject to delinquent principal or interest	0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans
Movement in Mortgage Loans on Real Estate [Roll Forward]
Beginning balance	19,120us-gaap_MortgageLoansOnRealEstate	19,383us-gaap_MortgageLoansOnRealEstate	34,239us-gaap_MortgageLoansOnRealEstate
Additions	360us-gaap_MortgageLoansOnRealEstateNewMortgageLoans	0us-gaap_MortgageLoansOnRealEstateNewMortgageLoans	0us-gaap_MortgageLoansOnRealEstateNewMortgageLoans
Non-cash transfer	0cbl_MortgageLoansOnRealEstateNonCashTransfer	0cbl_MortgageLoansOnRealEstateNonCashTransfer	(12,741)cbl_MortgageLoansOnRealEstateNonCashTransfer
Payments	(10,157)us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal	(263)us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal	(2,115)us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal
Ending balance	9,323us-gaap_MortgageLoansOnRealEstate	19,120us-gaap_MortgageLoansOnRealEstate	19,383us-gaap_MortgageLoansOnRealEstate
Other Mortgage, Type [Member]
Mortgage Loans on Real Estate [Line Items]
Minimum interest rate in range (percent)	2.67%us-gaap_MortgageLoansOnRealEstateMinimumInterestRateInRange / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Maximum interest rate in range (percent)	9.50%us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Monthly payment amount	20cbl_MortgageLoansOnRealEstateMonthlyPaymentAmount / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Balloon payment at maturity	3,340us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Face amount of mortgages	5,751us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Federal income tax basis	5,686us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Principal amount of mortgage subject to delinquent principal or interest	0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Basis spread on variable rate (percent)	2.00%us-gaap_LoansReceivableBasisSpreadOnVariableRateDuringPeriod / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Interest rate, current variable rate (percent)	5.25%cbl_MortgageLoansOnRealEstateInterestRateCurrentVariableRate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = cbl_OtherMortgageTypeMember
Columbia Place [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (percent)	5.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
Monthly payment amount	3cbl_MortgageLoansOnRealEstateMonthlyPaymentAmount / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
Balloon payment at maturity	360us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
Face amount of mortgages	360us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
Federal income tax basis	360us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
Principal amount of mortgage subject to delinquent principal or interest	0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_ColumbiaPlaceMember
One Park Place [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (percent)	5.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Monthly payment amount	21cbl_MortgageLoansOnRealEstateMonthlyPaymentAmount / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Balloon payment at maturity	0us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Face amount of mortgages	3,200us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Federal income tax basis	1,566us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Principal amount of mortgage subject to delinquent principal or interest	0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_OneParkPlaceMember
Village Square, Houghton Lake and Cadillac [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate (percent)	3.50%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
Monthly payment amount	8cbl_MortgageLoansOnRealEstateMonthlyPaymentAmount / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
Balloon payment at maturity	1,711us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
Face amount of mortgages	2,627us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
Federal income tax basis	1,711us-gaap_MortgageLoansOnRealEstateFederalIncomeTaxBasis1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
Principal amount of mortgage subject to delinquent principal or interest	$ 0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_VillageSquareHoughtonLakeAndCadillacMember
New Garden Crossing [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate (percent)	2.50%us-gaap_LoansReceivableBasisSpreadOnVariableRateDuringPeriod / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_FirstMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cbl_NewGardenCrossingMember

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Mortgage Loans on Real Estate, Interest Rate, Current Variable Rate

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Mortgage Loans on Real Estate, Monthly Payment Amount

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The percentage points added to the reference rate or index during the adjustment period to compute the variable [fully indexed] rate on the loans receivable realized during the reporting period. This may be an effective margin for the period depending on the specific terms of the underlying loan agreement (for example, an annual disclosure for a loan with a quarterly adjustment period).

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Total carrying amount of mortgage loans as of the balance sheet date.

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The amount of principal collected on mortgage loans on real estate during the reporting period.

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Amount of the contractual principal due at the origination of the mortgage loan (face amount).

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Amount of the federal income tax basis of mortgage loans on real estate.

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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The highest stated interest rate within the mortgage loans included in the loan grouping.

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