Supplemental Cash Flow Information [Abstract] Noncash Investing and Financing Activities Cash Flow, Supplemental Disclosures [Text Block] Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Operating expense reimbursements Operating Expense Reimbursements [Member] Operating Expense Reimbursements [Member] Management, development and leasing fees Management, Development and Leasing Fees [Member] Management, Development and Leasing Fees [Member] Marketing revenues Marketing [Member] Marketing [Member] Other revenues Product and Service, Other [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Malls Malls [Member] A reportable segment. All Other Other Segments [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Rental revenues Operating Leases, Income Statement, Lease Revenue Revenues from contracts with customers (ASC 606): Revenue from Contract with Customer, Excluding Assessed Tax Other revenues Operating Leases, Income Statement, Other Operating Leases, Income Statement, Other Total revenues Revenues Debt Disclosure [Abstract] Schedule of Mortgage and Other Indebtedness Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Covenant Compliance Schedule of Covenant Compliance [Table Text Block] Schedule of Covenant Compliance [Table Text Block] Schedule of Fixed Rate Loans Schedule of Fixed Rate Loans [Table Text Block] Schedule of Fixed Rate Loans [Table Text Block] Schedule of Principal Repayments Schedule of Maturities of Long-term Debt [Table Text Block] Period between increases in fixed rate of arrangements Revenues From Contracts With Customers, Fixed Rate Agreements, Price Increase Period Revenues From Contracts With Customers, Fixed Rate Agreements, Price Increase Period Number of extension options (one or more) Revenue From Contracts With Customers, Operating Agreements, Number Of Extension Options Available Revenue From Contracts With Customers, Operating Agreements, Number Of Extension Options Available. Period of extension option (50 or more years) Revenue From Contract With Customer, Operating Agreements, Cumulative Term Revenue From Contract With Customer, Operating Agreements, Cumulative Term Lease commission recognized upon lease execution (as a percent) Revenue, Performance Obligation, Lease Commission Recognized Upon Lease Execution, Percentage Revenue, Performance Obligation, Lease Commission Recognized Upon Lease Execution, Percentage Leases [Abstract] Schedule of Components of Lease Revenue Operating Lease, Lease Income [Table Text Block] Schedule of Undiscounted Future Lease Payments to be Received Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block] Schedule of Future Minimum Rental Payments Receivable for Operating Leases Schedule of Future Minimum Rental Payments Receivable for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments Receivable for Operating Leases [Table Text Block] Schedule of Right-of-Use Asset and Lease Liability Activity Assets and Liabilities, Lessee [Table Text Block] Assets and Liabilities, Lessee [Table Text Block] Schedule of Lease Expense Lease, Cost [Table Text Block] Schedule of Undiscounted Future Lease Payments under Operating Leases Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Lease expense: Operating Leases, Rent Expense, Net [Abstract] Operating lease expense Operating Lease, Cost Variable lease expense Variable Lease, Cost Rent Expense Lease, Cost Organization, Consolidation and Presentation of Financial Statements [Abstract] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Consolidated Properties Parent [Member] Unconsolidated Properties Noncontrolling Interest [Member] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Redevelopments, Malls Number of Malls Under Redevelopment Number of Malls Under Redevelopment Redevelopments, All Other Number Of Other Properties Under Redevelopment Number Of Other Properties Under Redevelopment Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Long-lived assets Assets, Fair Value Disclosure Total Loss on Impairment Impairment of Real Estate Schedule of Contract Assets and Liabilities Contract with Customer, Asset and Liability [Table Text Block] Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Schedule of Expected Recognition of Remaining Performance Obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] CBL & Associates Limited Partnership CBL & Associates Limited Partnership [Member] CBL & Associates Limited Partnership [Member] Temporary Equity [Axis] Temporary Equity [Axis] Temporary Equity [Domain] Temporary Equity [Domain] -- None. No documentation exists for this element. -- Redeemable Noncontrolling Interests Redeemable Noncontrolling Partnership Interests [Member] -- None. No documentation exists for this element. -- Redeemable Common Units Redeemable Common Units [Member] Redeemable Common Units [Member] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Dividends in Excess of Cumulative Earnings Accumulated Distributions in Excess of Net Income [Member] Total Shareholders' Equity/Partners' Capital Noncontrolling Interests Partner Capital Components [Axis] Partner Capital Components [Axis] Partner Capital Components [Domain] Partner Capital Components [Domain] Preferred Units Preferred Units [Member] Preferred Units [Member] Common Units Common Units [Member] Common Units [Member] General Partner General Partner [Member] Limited Partners Limited Partner [Member] Statement [Line Items] Statement [Line Items] Redeemable Noncontrolling Interests Increase (Decrease) in Temporary Equity [Roll Forward] Beginning balance of redeemable noncontrolling partnership interests Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount Net income (loss) Temporary Equity, Net Income Distributions declared - common units Dividends, Common Stock Adjustment for noncontrolling interests Adjustments to Additional Paid-in Capital, Noncontrolling Interest, Other Adjustments to Additional Paid-in Capital, Noncontrolling Interest, Other Adjustment to record redeemable interests at redemption value Noncontrolling Interest, Change in Redemption Value Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Allocation of partners' capital Partners' Capital Account, Exchanges and Conversions Ending balance of redeemable noncontrolling partnership interests Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Beginning balance of units (shares) Partners' Capital Account, Units Beginning balance partners capital Partners' Capital, Including Portion Attributable to Noncontrolling Interest Net income (loss) Net Income (Loss) Excluding Amount Recognized In Temporary Equity Net Income (Loss) Excluding Amount Recognized In Temporary Equity Cumulative effect of accounting change Cumulative Effect of New Accounting Principle in Period of Adoption Dividends declared - common stock Dividends declared - preferred stock Dividends, Preferred Stock Issuances of shares of common stock and restricted common stock Stock Issued During Period, Value, Common Stock and Restricted Stock Award, Gross Stock Issued During Period, Value, Common Stock and Restricted Stock Award, Gross Conversion of Operating Partnership common units into shares of common stock Stock Issued During Period, Value, Conversion of Units Cancellation of restricted common stock Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Performance stock units Adjustments to Additional Paid in Capital, Share-based Compensation, Other Long-term Incentive Plans, Requisite Service Period Recognition Issuances of common units (shares) Stock Issued During Period, Shares, New Issues Issuances of common units Stock Issued During Period, Value, New Issues Amortization of deferred compensation Amortization Of Deferred Compensation Amortization Of Deferred Compensation Cancellation of restricted common stock/units (shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Allocation of partners' capital Adjustment for noncontrolling interests Adjustment to record redeemable noncontrolling interests at redemption value Contributions from noncontrolling interests Noncontrolling Interest, Increase from Subsidiary Equity Issuance Distributions to noncontrolling interests Ending balance Ending balance of units (shares) Ending balance partners capital Organization and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] CBL & Associates Properties, Inc. CBL & Associates Properties, Inc. [Member] CBL & Associates Properties, Inc. [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Non-recourse loans on operating properties Non-Recourse Loans on Operating Properties [Member] Non-Recourse Loans on Operating Properties Senior Unsecured Notes Due 2023 Senior Notes Due 2023 [Member] Senior Notes Due 2023 [Member] Senior Unsecured Notes Due 2024 Senior Notes Due 2024 [Member] Senior Notes Due 2024 [Member] Senior Unsecured Notes Due 2026 Senior Notes Due 2026 [Member] Senior Notes Due 2026 [Member] Recourse loans on operating properties Recourse Term Loans On Operating Properties [Member] Recourse term loans on operating properties. Construction Loans Construction Loans [Member] Secured line of credit Secured Line of Credit [Member] Secured Line of Credit [Member] Unsecured lines of credit Unsecured lines of credit [Member] Information pertaining to the unsecured lines of credit. Secured term loan Secured Term Loan [Member] Secured Term Loan [Member] Unsecured term loans Unsecured Term Loan [Member] Unsecured Term Loan [Member] Long Term Debt Interest Rate [Axis] Long Term Debt Interest Rate [Axis] Debt with a stated rate of interest. Long Term Debt Interest Rate [Domain] Long Term Debt Interest Rate [Domain] Debt with a fixed rate of interest. Fixed Rate Interest Fixed Rate Interest [Member] Fixed Rate Interest [Member] Variable Rate Interest Variable Rate Interest Member [Member] Variable Rate Interest [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Fixed rate debt, amount Long-term Debt, Percentage Bearing Fixed Interest, Amount Variable-rate debt Long-term Debt, Percentage Bearing Variable Interest, Amount Weighted-average interest rate (as a percent) Long-term Debt, Weighted Average Interest Rate, at Point in Time Total fixed-rate and variable-rate debt Long Term Debt, Net Excluding Deferred Financing Costs Long Term Debt, Net Excluding Deferred Financing Costs Unamortized deferred financing costs Debt Issuance Costs, Net Liabilities related to assets held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Total mortgage and other indebtedness, net Long-term Debt Unamortized Discount Debt Instrument, Unamortized Discount Issuance of common and restricted stock (shares) Cancellation of restricted common stock/units (shares/units) Stock converted (shares) Conversion of Stock, Shares Converted Dividends/distributions declared - common stock/unit (USD per share/unit) Common Stock, Dividends, Per Share, Declared Revenues Revenue from Contract with Customer [Text Block] Contract Assets Activity [Roll Forward] Other Real Estate [Roll Forward] Balance at beginning of period Contract with Customer, Asset, Net Tenant openings Contract with Customer, Asset, Increase (Decrease) for Tenant Openings Contract with Customer, Asset, Increase (Decrease) for Tenant Openings Executed leases Contract with Customer, Asset, Increase (Decrease) for Executed Leases Contract with Customer, Asset, Increase (Decrease) for Executed Leases Balance at end of period Change in Contract with Customer, Liability [Roll Forward] Change in Contract with Customer, Liability [Roll Forward] Change in Contract with Customer, Liability [Roll Forward] Contract liability Contract with Customer, Liability Completed performance obligation Contract with Customer, Liability, Revenue Recognized Contract obligation Contract with Customer, Liability, Contract Obligations Added during Period Contract with Customer, Liability, Contract Obligations Added during Period Contract liability Contract with Customer, Asset, Net [Abstract] Contract with Customer, Asset, Net [Abstract] Contract assets Expected Settlement Period Contract Asset, Expected Amortization [Abstract] Contract Asset, Expected Amortization [Abstract] 2019 Contract with Customer, Asset, Amortization Expense, Remainder of Fiscal Year Contract with Customer, Asset, Amortization Expense, Remainder of Fiscal Year 2020 Contract with Customer, Asset, Amortization Expense, Year Two Contract with Customer, Asset, Amortization Expense, Year Two 2021 Contract with Customer, Asset, Amortization Expense, Year Three Contract with Customer, Asset, Amortization Expense, Year Three 2022 Contract with Customer, Asset, Amortization Expense, Year Four Contract with Customer, Asset, Amortization Expense, Year Four 2023 Contract with Customer, Asset, Amortization Expense, Year Five Contract with Customer, Asset, Amortization Expense, Year Five Contract with Customer, Liability [Abstract] Contract with Customer, Liability [Abstract] Contract liability Expected Settlement Period Contract With Customer, Liability, Revenue Recognition [Abstract] Contract With Customer, Liability, Revenue Recognition [Abstract] 2019 Contract with Customer, Liability, Expected Revenue Recognized, Remainder Of Fiscal Year Contract with Customer, Liability, Expected Revenue Recognized, Remainder Of Fiscal Year 2020 Contract with Customer, Liability, Expected Revenue Recognized, Year Two Contract with Customer, Liability, Expected Revenue Recognized, Year Two 2021 Contract with Customer, Liability, Expected Revenue Recognized, Year Three Contract with Customer, Liability, Expected Revenue Recognized, Year Three 2022 Contract with Customer, Liability, Expected Revenue Recognized, Year Four Contract with Customer, Liability, Expected Revenue Recognized, Year Four 2023 Contract with Customer, Liability, Expected Revenue Recognized, Year Five Contract with Customer, Liability, Expected Revenue Recognized, Year Five Lease commission recognized upon tenant opening (as a percent) Revenue, Performance Obligation, Lease Commission Recognized Upon Tenant Opening, Percentage Revenue, Performance Obligation, Lease Commission Recognized Upon Tenant Opening, Percentage Accounting Policies [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] ROU Asset Right-of-Use Asset Activity [Roll Forward] Right-of-Use Asset Activity [Roll Forward] Balance as of January 1, 2019 Operating Lease, Right-of-Use Asset Cash reduction Increase (Decrease) in Operating Lease, Right-of-Use Asset, Cash Increase (Decrease) in Operating Lease, Right-of-Use Asset, Cash Noncash increase Increase (Decrease) in Operating Lease, Right-of-Use Asset Increase (Decrease) in Operating Lease, Right-of-Use Asset, Noncash Balance as of March 31, 2019 Lease Liability Lease Liability Activity [Roll Forward] Lease Liability Activity [Roll Forward] Balance as of January 1, 2019 Operating Lease, Liability Cash reduction Increase (Decrease) in Operating Lease, Liability, Cash Increase (Decrease) in Operating Lease, Liability, Cash Noncash increase Increase (Decrease) in Operating Lease, Liability, Noncash Increase (Decrease) in Operating Lease, Liability, Noncash Balance as of March 31, 2019 Operating Lease Payments to be Received after Adoption of ASC 842 Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract] 2019 Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year 2020 Lessor, Operating Lease, Payments to be Received, Two Years 2021 Lessor, Operating Lease, Payments to be Received, Three Years 2022 Lessor, Operating Lease, Payments to be Received, Four Years 2023 Lessor, Operating Lease, Payments to be Received, Five Years 2024 Lessor, Operating Lease, Payments to be Received, Six Years Lessor, Operating Lease, Payments to be Received, Six Years Thereafter Lessor, Operating Lease, Payments to be Received, Thereafter Total undiscounted lease payments Lessor, Operating Lease, Payments to be Received Operating Lease Payments Receivable before Adoption of ASC 842 Operating Leases, Future Minimum Payments Receivable [Abstract] 2019 Operating Leases, Future Minimum Payments Receivable, Current 2020 Operating Leases, Future Minimum Payments Receivable, in Two Years 2021 Operating Leases, Future Minimum Payments Receivable, in Three Years 2022 Operating Leases, Future Minimum Payments Receivable, in Four Years 2023 Operating Leases, Future Minimum Payments Receivable, in Five Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Total Operating Leases, Future Minimum Payments Receivable Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract] Schedule of Mortgage and Other Notes Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Environmental liability insurance, maximum coverage per incident (up to) Environmental Liability Insurance, Maximum Coverage Per Incident Environmental Liability Insurance, Maximum Coverage Per Incident Environmental liability insurance, annual coverage limit (up to) Environmental Liability Insurance, Annual Coverage Limit. Annual coverage limit provided by the insurance arrangement for environmental liability claims. Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Greenbrier Mall and Honey Creek Mall Greenbrier Mall and Honey Creek Mall [Member] Greenbrier Mall and Honey Creek Mall [Member] Outlet Mall and Outparcel Sale Outlet Mall and Outparcel Sale [Member] Outlet Mall and Outparcel Sale [Member] Fair value of long-term debt Long-term Debt, Fair Value Loss on impairment Number of malls with impairment Number of Malls with Impairment Number of Malls with Impairment Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Schedule of Guarantees Schedule of Loss Contingencies by Contingency [Table Text Block] Leases Lessee, Operating Leases [Text Block] Leases Lessor, Operating Leases [Text Block] Business Combinations, Discontinued Operations and Disposal Groups [Abstract] [Abstract] Business Combinations, Discontinued Operations and Disposal Groups [Abstract] [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Real Estate [Domain] Real Estate [Domain] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Acadania Mall Acadania Mall [Member] Acadania Mall [Member] Cary Towne Center Cary Towne Center [Member] Cary Towne Center [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Balance of Non-recourse Debt Debt Instrument, Face Amount Gain on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt Non-cash default interest expense Non-cash Default Interest Expense Non-cash Default Interest Expense Proceeds from sale of real estate Proceeds from Sale of Real Estate Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] West Melbourne I, LLC - Phase I West Melbourne I LLC - Phase I [Member] West Melbourne I LLC - Phase I [Member] West Melbourne I, LLC - Phase II West Melbourne I LLC - Phase II [Member] West Melbourne I LLC - Phase II [Member] Port Orange I, LLC Port Orange I LLC [Member] Joint venture investment accounted for using the equity method of accounting. Ambassador Infrastructure, LLC Ambassador Infrastructure, LLC [Member] Ambassador Infrastructure, LLC [Member] Shoppes at Eagle Point, LLC Shoppes At Eagle Point, LLC [Member] Shoppes At Eagle Point, LLC [Member] EastGate Storage, LLC EastGate Storage, LLC [Member] EastGate Storage, LLC [Member] Self Storage at Mid Rivers, LLC Self Storage at Mid Rivers, LLC [Member] Self Storage at Mid Rivers, LLC [Member] York Town Center Lp York Town Center Lp [Member] Joint venture investment accounted for using the equity method of accounting. Guarantor Obligations [Line Items] Guarantor Obligations [Line Items] Company's Ownership Interest (as a percent) Equity Method Investment, Ownership Percentage Outstanding Balance Long-term Construction Loan Percentage Guaranteed by the Operating Partnership (as a percent) Guarantor Obligations, Percentage Obligation of Construction Loan Percentage of third party construction loan guaranteed by the company. Maximum Guaranteed Amount Maximum guarantee obligation after loans partially paid down Company's maximum guaranteed amount after loans were partially paid down. Obligation Recorded to Reflect Guaranty Guarantees, Fair Value Disclosure Reduction of guarantor obligations once construction is complete (as a percent) Guarantor Obligations, Guaranty Reduction, Percentage, Once Construction Is Complete Guarantor Obligations, Guaranty Reduction, Percentage, Once Construction Is Complete Number of extension options available Option extension term of debt instrument Debt Instrument, Period of Extension Option Debt Instrument, Period of Extension Option Reduction of guarantor obligations once certain debt and operational metrics are met (as a percent) Guarantor Obligations, Guaranty Reduction Percentage, Once Certain Debt and Operational Metrics Are Met Guarantor Obligations, Guaranty Reduction Percentage, Once Certain Debt and Operational Metrics Are Met Guaranty fee (as a percent) Guarantor Obligations, Guaranty Fee, Percentage Guarantor Obligations, Guaranty Fee, Percentage Undiscounted maximum exposure Guarantor Obligations, Maximum Exposure, Undiscounted Annual reductions to guarantors obligations Annual Reductions To Guarantors Obligations The annual reduction amount to the Guarantor's Obligations. Guaranteed minimum exposure amount Guaranteed Minimum Exposure Amount Minimum potential amount of future payments (undiscounted) the company could be required to make under the guarantee or each group of similar guarantees after reductions. Guaranteed amount of the outstanding loan based on percentage Guaranteed Amount of the Outstanding Loan Based on Percentage Portion of the loan amount guaranteed by the company based on the guaranty percentage. Guarantor obligations recoverable Guarantor Obligations Recoverable Represents amount recoverable by guarantor from third parties for amounts paid under the guaranty. Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Expected Term Measurement Input, Expected Term [Member] Cap Rate Measurement Input, Cap Rate [Member] Discount Rate Measurement Input, Discount Rate [Member] Prior period adjustments Prior Sales Adjustment [Member] Prior Sales Adjustment [Member] Greenbrier Mall Greenbrier Mall [Member] Greenbrier Mall [Member] Honey Creek Mall Honey Creek Mall [Member] Honey Creek Mall [Member] Janesville Mall Janesville Mall [Member] Janesville Mall [Member] Loss on Impairment Fair Value Equity method investments at fair value Equity Method Investments, Fair Value Disclosure Holding period Other Real Estate Owned, Term Other Real Estate Owned, Term Fair value measurement input Other Real Estate Owned, Measurement Input Equity Method Investments and Joint Ventures [Abstract] Noncontrolling Interest [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] G&I VIII CBL Triangle LLC G&I VIII CBL Triangle LLC [Member] G&I VIII CBL Triangle LLC [Member] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Investment in Real Estate Joint Ventures and Partnerships Real Estate Investments, Joint Ventures Maximum Risk of Loss Real Estate Investment, Maximum Loss Real Estate Investment, Maximum Loss Debt guaranteed (as a percent) Debt Instrument, Percentage Guaranteed Debt Instrument, Percentage Guaranteed Equity interest in real estate property (as a percent) Ownership [Axis] Ownership [Axis] Ownership [Domain] Ownership [Domain] CBL Holdings CBL Holdings [Member] CBL Holdings [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] CBL & Associates Limited Partnership Subsidiaries [Member] Number of states in which entity operates Number of States in which Entity Operates Ownership interest in qualified subsidiaries (as a percent) Noncontrolling Interest, Ownership Percentage by Parent Number of wholly owned subsidiaries Number of Subsidiaries Owned Number of Subsidiaries Owned Ownership of the sole general partner in partnership (as a percent) Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited partnership interest owned by CBL Holdings II, Inc. in the operating partnership (as a percent) Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Combined ownership by the subsidiaries in operating partnership (as a percent) Combined ownership percentage by subsidiaries in operating partnership The number of units or percentage investment held by one or more general or limited partners of the LLC or LP. Non-controlling limited partner interest ownership of CBL's Predecessor in the Operating Partnership (as a percent) Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Non-controlling limited partner interest of third parties in Operating partnership (as a percent) Percentage of Noncontrolling limited partner interest owned in operating partnership by third parties The number of units or percentage investment held by the limited liability company or limited partnership in an operating partnership. Common stock owned by CBL's Predecessor (shares) Limited Partners' Capital Account, Units Issued Total combined effective interest of CBL's Predecessor in Operating Partnership (as a percent) Percentage of effective interest in operating partnership Percentage of effective interest in Operating Partnership. Operating expense reimbursements Operating Expense Reimbursements Operating Expense Reimbursements Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenues Property operating expenses Property operating expenses, by segment Property operating expenses, disclosed by reporting segment, for the reporting period which includes the balance sheet line items: Property Operating, Real Estate Taxes and Maintenance and Repairs. Interest expense Interest Expense Other expense Other General Expense Gain on sales of real estate assets Gains (Losses) on Sales of Investment Real Estate Segment profit (loss) Segment profit (loss) Profit or loss, disclosed by segment and presented for the reporting period. Depreciation and amortization expense Depreciation, Depletion and Amortization General and administrative expense General and Administrative Expense Litigation settlement Gain (Loss) Related to Litigation Settlement Interest and other income Investment Income, Net Gain on extinguishment of debt Loss on impairment Income tax benefit (provision) Income Tax Expense (Benefit) Equity in earnings of unconsolidated affiliates Income (Loss) from Equity Method Investments Net loss Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Capital expenditures Payments for Capital Improvements Total Assets Assets Share-based Compensation [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Awards Restricted Stock [Member] Performance Stock Units Performance Shares [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Vested on date of grant Share-based Compensation Award, Tranche Four [Member] Share-based Compensation Award, Tranche Four [Member] Vested at conclusion of performance period Share-based Compensation Award, Tranche One [Member] Remaining percentage after performance period Share-based Compensation Award, Tranche Two [Member] Vested each year for the first two anniversaries after conclusion of performance period Share-based Compensation Award, Tranche Three [Member] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Chief Executive Officer Chief Executive Officer [Member] Officer Officer [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of shares authorized under plan (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based compensation expense Allocated Share-based Compensation Expense Share-based compensation cost capitalized as part of real estate assets Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] Nonvested, beginning of period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Nonvested, end of period (shares) Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted-average grant date fair value, nonvested, beginning of period (USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-average grant date fair value, granted (USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value, vested (USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value, forfeited (USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Weighted-average grant date fair value, nonvested, end of period (USD per share) Unrecognized compensation cost related to nonvested stock awards Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Compensation cost to be recognized over a weighted-average period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Performance period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Number of shares authorized to be granted annually (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized to be Granted Annually Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized to be Granted Annually Vesting rate based on achievement of TSR relative to the NAREIT retail index (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Total Stockholder Return to the National Association of Real Estate Investment Trusts Retail Index, Percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Total Stockholder Return to the National Association of Real Estate Investment Trusts Retail Index, Percentage Vesting rate based on the achievement of absolute TSR metrics (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Absolute Total Stockholder Return Metrics, Percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Absolute Total Stockholder Return Metrics, Percentage Vesting rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Number of annual installment for awards to vest (installment) Share-based Compensation, Vesting, Number of Annual Installments Share-based Compensation, Vesting, Number of Annual Installments Stock classified as a liability due to the potential cash component (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Classified as Liabilities Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Classified as Liabilities Fair value per share on valuation date (USD per share) Risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected share price volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Contingencies Commitments and Contingencies Disclosure [Text Block] Condensed combined financial statement information - unconsolidated affiliates [Table] Schedule of Equity Method Investments [Table] Parent Company Parent Company [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] ASSETS Equity Method Investment, Summarized Financial Information, Assets [Abstract] Investment in real estate assets Equity Method Investment Real Estate Investment Property, at Cost Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) rental properties; and (6) other real estate investments that Equity Method Investment Real Estate Investment Property, at Cost Accumulated depreciation Equity Method Investment, Real Estate Investment Property, Accumulated Depreciation The cumulative amount of depreciation for real estate property held for investment purposes reported by an equity method investment of the entity. Real estate investment net, before development in process Equity Method Investment, Real Estate Investment Property Net, Before Development in Process The net book value of real estate property held for investment purposes EXCLUDING DEVELOPMENTS IN PROGRESS reported by an equity method investment of the entity. Developments in progress Equity Method Investment, Development in Process The current amount of expenditures for a real estate project that has not yet been completed reported by an equity method investment of the entity. Net investment in real estate assets Equity Method Investment, Real Estate Investment Property, Net Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments reported by an equity method investment of the entity. Other assets Equity Method Investment, Intangible Lease And Other Assets Sum of the carrying amounts of all intangible lease assets, as of the balance sheet date, net of accumulated amortization and miscellaneous other assets not included elsewhere in the Assets portion of the Balance Sheet reported by an equity method investment of the entity. Total assets Equity Method Investment, Summarized Financial Information, Assets LIABILITIES Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract] Mortgage and other indebtedness, net Equity Method Investment, Debt and Capital Lease Obligations Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations reported by an equity method investment of the entity. Other liabilities Equity Method Investment, Accounts Payable and Accrued Liabilities Equity Method Investment, Accounts Payable and Accrued Liabilities Total liabilities Equity Method Investment, Summarized Financial Information, Liabilities OWNERS' EQUITY Equity Method Investment Summarized Financial Information, Equity [Abstract] The Company Equity Method Investment, Summarized Financial Information, Equity Excluding Noncontrolling Interests Other investors Equity Method Investment, Summarized Financial Information, Noncontrolling Interest Total owners' equity Equity Method Investment Summarized Financial Information, Equity Total liabilities and owners' equity Equity Method Investment, Summarized Financial Information, Liabilities and Equity Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Total revenues Equity Method Investment, Summarized Financial Information, Revenue Net income (loss) Equity Method Investment, Summarized Financial Information, Net Income (Loss) Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Tenant reimbursements period related to certain capital expenditure minimum Tenant Reimbursements Period Related to Certain Capital Expenditure Minimum, in Years Tenant Reimbursements Period Related to Certain Capital Expenditure Minimum, in Years Tenant reimbursements period related to certain capital expenditure maximum Tenant Reimbursements Period Related to Certain Capital Expenditure Maximum, in Years Tenant Reimbursements Period Related to Certain Capital Expenditure Maximum, in Years Uncollectable operating lease receivables Uncollectable Operating Lease Receivables Uncollectable Operating Lease Receivables Number of ground leases Number of Properties Subject to Ground Leases Number of office leases Lessee Leasing Arrangements, Number of Office Building Leases Lessee Leasing Arrangements, Number of Office Building Leases Operating lease renewal term Lessee, Operating Lease, Renewal Term Weighted-average remaining term of operating leases Operating Lease, Weighted Average Remaining Lease Term Weighted-average discount rate of operating leases (as a percent) Operating Lease, Weighted Average Discount Rate, Percent Fixed lease payments Operating Lease, Lease Income, Lease Payments Variable lease payments Operating Lease, Variable Lease Income Total rental revenues Operating Lease, Lease Income Assignment of the partnership interest (as a percent) Percentage of assignment of the partnership interest Percentage of assignment of the partnership interest in the real estate. Mortgage and Other Notes Receivable [Table] Mortgage and Other Notes Receivable [Table] Mortgage and Other Notes Receivable [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Mortgages Mortgage Receivable [Member] Other Notes Receivable Notes Receivable [Member] Columbia Place Outparcel Columbia Place [Member] Columbia Place [Member] One Park Place One Park Place [Member] One Park Place [Member] Village Square Village Square, Houghton Lake and Cadillac [Member] Village Square, Houghton Lake and Cadillac [Member] Other Other Entities [Member] Other Entities [Member] ERMC ERMC [Member] ERMC [Member] Southwest Theaters LLC Southwest Theaters [Member] Southwest Theaters [Member] The Promenade at Dlberville The Promenade at Dlberville [Member] The Promenade at Dlberville [Member] Mortgage and Other Notes Receivable [Line Items] Mortgage and Other Notes Receivable [Line Items] Mortgage and Other Notes Receivable [Line Items] Interest Rate (as a percent) SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Interest Rate Balance Financing Receivable, Net Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Wave Lengths Hair Salons Of Florida Inc. Wave Lengths Hair Salons Of Florida Inc. [Member] Wave Lengths Hair Salons Of Florida Inc. [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Required amount reserved Litigation Settlement, Required Amount Reserved Litigation Settlement, Required Amount Reserved Amount awarded to other party Litigation Settlement, Amount Awarded to Other Party Period of settlement payments of monthly rent credits Period of Settlement Payments of Monthly Rent Credits Period of Settlement Payments of Monthly Rent Credits Attorney fees and associated costs Legal Fees Incentive award costs Incentive Fee Expense Class administration costs Class Administration Costs Class Administration Costs Loss contingency accrual Loss Contingency Accrual Litigation settlement expense Litigation Settlement, Expense Consolidation of Variable Interest Entity Consolidation, Variable Interest Entity, Policy [Policy Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Commitments and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Senior Unsecured Notes Due 2023 Senior Notes Due 2023 and 2024 Senior Notes Due 2023 and 2024 [Member] Senior Notes Due 2023 and 2024 [Member] Senior Unsecured Notes Senior Unsecured Notes [Member] Senior Unsecured Notes [Member] Interest Rate Debt Covenants Actual vs Required [Axis] Debt Covenants Actual vs Required [Axis] Debt Covenants Actual vs Required [Axis] Debt Covenants Actual vs Required [Domain] Debt Covenants Actual vs Required [Domain] [Domain] for Debt Covenants Actual vs Required [Axis] Actual Debt Covenant Ratios Actual [Member] Debt Covenant Ratios Actual [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Treasury Rate Treasury Rate [Member] Treasury Rate [Member] Amount Interest rate Increase in variable interest rate (as a percent) Debt Instrument, Interest Rate, Increase (Decrease) in Variable Rate Basis Debt Instrument, Interest Rate, Increase (Decrease) in Variable Rate Basis Secured debt to total assets (as a percent) Debt Instrument, Secured Debt To Total Assets Ratio Secured Debt to Total Assets Notice period required to redeem debt Notice Required to Redeem Debt, Term Notice Required to Redeem Debt, Term Basis spread on variable rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Unconsolidated Affiliates and Noncontrolling Interests Equity Method Investments and Joint Ventures Disclosure [Text Block] Earnings Per Share [Abstract] Earnings per Share and Earnings per Unit Earnings Per Share [Text Block] Acadiana Mall Acadiana Mall [Member] Acadiana Mall [Member] Mortgages Mortgages [Member] Interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Balance of Non-recourse Debt Debt Instrument, Debt Default, Amount Gain on extinguishment of debt Undiscounted Future Operating Lease Payments after Adoption of ASC 842 Operating Lease Liabilities, Payments Due [Abstract] 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five 2024 Lessee, Operating Lease, Liability, Payments, Due Year Six Lessee, Operating Lease, Liability, Payments, Due Year Six Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Six Lessee, Operating Lease, Liability, Payments, Due after Year Six Total undiscounted lease payments Lessee, Operating Lease, Liability, Payments, Due Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Lease Liability Future Minimum Payments Due under Operating Leases before Adoption of ASC 842 Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Future minimum payments due under operating leases Operating Leases, Future Minimum Payments Due Mortgage and Other Indebtedness, Net Debt Disclosure [Text Block] Schedule of Information on Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Company Stock Award Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] Schedule of Assumptions Used in the Monte Carlo Simulation Pricing Model Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block] Schedule of Equity Method Investments [Table] Bullseye, LLC Bullseye, LLC [Member] Bullseye, LLC [Member] Number of equity method investment entities Number of entities - equity method of accounting The total number of entities accounted for using the equity method of Accounting. Number of joint ventures Number of Joint Venture Entities Number of Joint Venture Entities Payments to acquire land Payments to Acquire Land Ownership in variable interest entity (as a percent) Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Number of variable interest entities Variable Interest Entity, Number of Entities Variable Interest Entity, Number of Entities Schedule of Noncash Investing and Financing Activities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Income Statement [Abstract] REVENUES: Revenues [Abstract] Management, development and leasing fees Other Other Income OPERATING EXPENSES: Operating Expenses [Abstract] Property operating Cost of Other Property Operating Expense Depreciation and amortization Real estate taxes Real Estate Tax Expense Maintenance and repairs Cost of Property Repairs and Maintenance General and administrative Loss on impairment Other Total operating expenses Operating Expenses OTHER INCOME (EXPENSES): Other Nonoperating Income (Expense) [Abstract] Interest and other income Gain on sales of real estate assets Equity in earnings of unconsolidated affiliates Total other income (expenses) Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Before Gain On Sale Of Real Estate Assets Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, before gain on sale of real estate assets Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net (income) loss attributable to noncontrolling interests in: Net Income (Loss) Attributable to Noncontrolling Interest [Abstract] Operating Partnership NetIncomeLossAttributableToNoncontrollingNoncontrollingInterestInOperatingPartnership Net Income Loss Attributable To Noncontrolling Interest In The Operating Partnership Other consolidated subsidiaries Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to the Company Net Income (Loss) Attributable to Parent Preferred dividends Net loss attributable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Basic and diluted per share data attributable to common shareholders: Earnings Per Share, Basic and Diluted [Abstract] Net loss attributable to common shareholders/ unitholders (USD per share) Earnings Per Share, Basic and Diluted Weighted-average common and potential dilutive common shares/units outstanding (shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Potentially dilutive securities excluded from the computation of EPS (shares) Potentially Dilutive Securities Excluded from Computation of Earnings Per Share, Amount Potentially Dilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities excluded from the computation of EPS (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Schedule of Properties Owned by Operating Partnership Schedule of Real Estate Properties [Table Text Block] Schedule of Properties under Development Properties Under Development [Table Text Block] Properties Under Development [Table Text Block] Statement of Financial Position [Abstract] CBL & Associates Limited Partnership Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series D Preferred Stock Series D Preferred Stock [Member] Series E Preferred Stock Series E Preferred Stock [Member] Tenant receivables allowance for doubtful accounts Allowance for Doubtful Accounts, Premiums and Other Receivables Other receivables allowance for doubtful accounts Allowance for Doubtful Other Receivables, Current Preferred stock, par value (USD per share) Preferred Stock, Par or Stated Value Per Share Preferred stock authorized (shares) Preferred Stock, Shares Authorized Dividend rate of preferred stock (as a percent) Preferred Stock, Dividend Rate, Percentage Preferred stock outstanding (shares) Preferred Stock, Shares Outstanding Common stock, par value (USD per share) Common Stock, Par or Stated Value Per Share Common stock authorized (shares) Common Stock, Shares Authorized Common stock issued (shares) Common Stock, Shares, Issued Common stock outstanding (shares) Common Stock, Shares, Outstanding Assets related to consolidated variable interest entities Variable Interest Entity, Consolidated, Carrying Amount, Assets Liabilities related to consolidated variable interest entities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Recent Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Subsequent Event [Table] Subsequent Event [Table] Volusia Mall Volusia Mall [Member] Volusia Mall [Member] The Shoppes at Hickory Point The Shoppes at Hickory Point [Member] The Shoppes at Hickory Point [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Monthly payment amount Mortgage Loans on Real Estate, Monthly Payment Amount Mortgage Loans on Real Estate, Monthly Payment Amount Real Estate Investments, Net [Abstract] Real Estate Investments, Net [Abstract] Accrued dividends and distributions payable Dividends Payable Additions to real estate assets accrued but not yet paid Additions to real estate assets accrued but not yet paid Future cash outflow to pay for real estate additions accrued but not yet paid. Conversion of Operating Partnership units for common stock Conversion of Stock, Amount Converted Lease liabilities arising from obtaining right-of-use assets SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] Decrease in real estate assets SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Period Increase (Decrease) Decrease in mortgage and other indebtedness SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure Decrease in operating assets and liabilities SEC Schedule, 12-29, Real Estate Companies, Decrease in Operating Assets and Liabilities SEC Schedule, 12-29, Real Estate Companies, Decrease in Operating Assets and Liabilities Decrease in intangible lease and other assets SEC Schedule, 12-29, Real Estate Companies, Decrease in Intangible Lease and Other Assets SEC Schedule, 12-29, Real Estate Companies, Decrease in Intangible Lease and Other Assets Schedule of Condensed Combined Financial Statements of Unconsolidated Affiliates Condensed combined financial statement information - unconsolidated affiliates [Table Text Block] Tabular disclosure of equity method investments in earnings of unconsolidated affiliates. Schedule of Limited Partners' Capital Account by Class Schedule of Limited Partners' Capital Account by Class [Table Text Block] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Malls Number Of Regional Malls Open Air Centers Owned Number of regional malls/open air centers in which interest is owned as of the balance sheet date. Associated Centers Number Of Associated Centers Owned Number of associated centers in which interest is owned as of the balance sheet date. Community Centers Number Of Community Centers Owned The number of community center properties in which interest is owned as of the balance sheet date Office Buildings/Other Number Of Office Buildings Owned The number of office buildings in which interest is owned as of the balance sheet date. Total Properties Number of Real Estate Properties Number of mixed-use centers owned Number of mixed-use centers owned Number of mixed-use centers owned Schedule of Assets Measured on a Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Schedule of Impairment on Real Estate Properties Schedule of Impairment on Real Estate Properties [Table Text Block] Schedule of Impairment on Real Estate Properties [Table Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Net amortization of deferred financing costs, debt premiums and discounts Amortization of Debt Issuance Costs and Discounts Net amortization of intangible lease assets and liabilities Amortization of above and below Market Leases Gain on sales of real estate assets Gains (Losses) on Sales of Other Real Estate Gain on insurance proceeds Gain (Loss) on Insurance Proceeds Gain (Loss) on Insurance Proceeds Write-off of development projects Noncash Project Abandonment Costs Share-based compensation expense Share-based Compensation Gain on extinguishment of debt Extinguishment of Debt, Gain (Loss), Net of Tax Equity in earnings of unconsolidated affiliates Distributions of earnings from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution Change in estimate of uncollectable rental revenues Provision for Doubtful Accounts Change in deferred tax accounts Deferred Income Tax Expense (Benefit) Changes in: Increase (Decrease) in Operating Capital [Abstract] Tenant and other receivables Increase (Decrease) in Accounts and Other Receivables Other assets Increase (Decrease) in Other Operating Assets Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Additions to real estate assets Payments to Acquire and Develop Real Estate Proceeds from sales of real estate assets Proceeds from Sale of Real Estate Held-for-investment Proceeds from insurance Proceeds from Insurance Settlement, Investing Activities Payments received on mortgage and other notes receivable Proceeds from Sale and Collection of Mortgage Notes Receivable Additional investments in and advances to unconsolidated affiliates Net Difference of Investment in Unconsolidated Affiliates and the Equity of Unconsolidated Affiliates Net Difference of Investment in Unconsolidated Affiliates and the Equity of Unconsolidated Affiliates Distributions in excess of equity in earnings of unconsolidated affiliates Distributions In Excess Of Equity In Earnings Of Unconsolidated Affiliates This element represents distributions from equity method investments that constitute a return of investment, which are classified as investing activities. Changes in other assets Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from mortgage and other indebtedness Proceeds from Notes Payable Principal payments on mortgage and other indebtedness Repayments of Notes Payable Additions to deferred financing costs Payments of Financing Costs Proceeds from issuances of common stock Proceeds from Issuance of Common Stock Contributions from noncontrolling interests Proceeds from Contributions from Affiliates Payment of tax withholdings for restricted stock awards Payments Related to Tax Withholding for Share-based Compensation Distributions to noncontrolling interests Payments of Distributions to Affiliates Dividends paid to holders of preferred stock Payments of Ordinary Dividends, Preferred Stock and Preference Stock Dividends paid to common shareholders Payments of Ordinary Dividends, Common Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period Reconciliation from condensed consolidated statements of cash flows to condensed consolidated balance sheets: Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash [Abstract] Restricted cash Restricted Cash Mortgage escrows Escrow Deposit CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period SUPPLEMENTAL INFORMATION: Cash paid for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Share-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Required Debt Covenant Requirement [Member] Debt Covenant Requirement [Member] Total debt to total assets (as a percent) Ratio of Total Debt to Total Assets Ratio of Total Debt to Total Assets Total unencumbered assets to unsecured debt (as a percent) Total Unencumbered Assets to Unsecured Debt Total Unencumbered Assets to Unsecured Debt Consolidated income available for debt service to annual debt service charge (as a percent) Income Available for Debt Service to Debt Service Charge Income Available for Debt Service to Debt Service Charge Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Expected timing of satisfaction of remaining performance obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Guarantor Subsidiaries Guarantor Subsidiaries [Member] LIBOR London Interbank Offered Rate (LIBOR) [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Secured Debt Secured Debt [Member] Line of Credit Line of Credit [Member] Revolving Credit Facility Revolving Credit Facility [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Unsecured Term Loan 1 Unsecured Term Loan 1 [Member] Unsecured Term Loan 1 [Member] Total Outstanding Number of debt instruments Debt Instrument, Number Of Instruments Debt Instrument, Number Of Instruments Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Annual facility fee (as a percent) Line of Credit Facility, Commitment Fee Percentage Quarterly installment payments on debt Quarterly Installment Payments on Debt Quarterly Installment Payments on Debt Number of malls securing the credit facility Number of Malls Securing Credit Facility, Collateral Number of Malls Securing Credit Facility, Collateral Number of associated centers securing the credit facility Number of Associated Centers Securing Credit Facility, Collateral Number of Associated Centers Securing Credit Facility, Collateral Number of malls not classified as collateral for the secured credit facility Number of Malls not Classified as Collateral Number of Malls not Classified as Collateral Number of associated centers not classified as collateral for the secured credit facility Number of Associated Centers not Classified as Collateral Number of Associated Centers not Classified as Collateral Number of mortgage notes receivable not classified as collateral for the secured credit facility Number of Mortgage Notes Receivable not Classified as Collateral Number of Mortgage Notes Receivable not Classified as Collateral Ownership interest in guarantor subsidiaries by Operating Partnership (as a percent) Ownership Interest in Guarantor Subsidiary by Operating Partnership, Percent Ownership Interest in Guarantor Subsidiary by Operating Partnership, Percent Default minimum of debt instrument Debt Instrument, Debt Default Threshold, Minimum Loan Amount Debt Instrument, Debt Default Threshold, Minimum Loan Amount Principal maturities for remainder of fiscal year Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year Weighted-average maturity period Debt Instrument, Weighted Average Remaining Term to Maturity Debt Instrument, Weighted Average Remaining Term to Maturity Schedule of Dispositions Disposal Groups, Including Discontinued Operations [Table Text Block] Dispositions and Held for Sale Acquisitions and Discontinued Operations [Text Block] Acquisitions and Discontinued Operations [Text Block] Mortgage and Other Notes Receivable Loans, Notes, Trade and Other Receivables Disclosure [Text Block] ASSETS Assets [Abstract] Real estate assets: Real Estate Investment Property, Net [Abstract] Land Land Buildings and improvements Investment Building and Building Improvements Real estate assets Real Estate Investment Property, at Cost Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Real estate investment property, net, before developments in progress Real Estate Investment Property Net, Before Development in Process The net book value of real estate property held for investment purposes EXCLUDING DEVELOPMENTS IN PROGRESS. Held for sale Real Estate Held-for-sale Developments in progress Development in Process Net investment in real estate assets Real Estate Investment Property, Net Cash and cash equivalents Receivables: Accounts and Notes Receivable, Net [Abstract] Tenant, net of allowance for doubtful accounts of $2,337 in 2018 Accounts Receivable, Net Other, net of allowance for doubtful accounts of $838 in 2018 Other Receivables Mortgage and other notes receivable Investments in unconsolidated affiliates Equity Method Investments Intangible lease assets and other assets Intangible Lease And Other Assets Sum of the carrying amounts of all intangible lease assets, as of the balance sheet date, net of accumulated amortization and miscellaneous other assets not included elsewhere in the Assets portion of the Balance Sheet. Total assets LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY Liabilities and Equity [Abstract] Mortgage and other indebtedness, net Debt and Capital Lease Obligations Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities Liabilities related to assets held for sale Disposal Group, Including Discontinued Operation, Liabilities Total liabilities Liabilities Commitments and contingencies (Note 8 and Note 12) Commitments and Contingencies Redeemable noncontrolling interests Shareholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, $.01 par value, 15,000,000 shares authorized: Partners' Capital, Number of Units, Par Value and Other Disclosures [Abstract] Preferred stock outstanding Preferred Stock, Value, Outstanding Common stock, $.01 par value, 350,000,000 shares authorized, 173,461,976 and 172,656,458 issued and outstanding in 2019 and 2018, respectively Common Stock, Value, Issued Partners' capital: Partners' Capital [Abstract] Preferred units Preferred Units, Preferred Partners' Capital Accounts General partner General Partners' Capital Account Limited partners Limited Partners' Capital Account Additional paid-in capital Additional Paid in Capital Dividends in excess of cumulative earnings Retained Earnings (Accumulated Deficit) Total shareholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total partners' capital Partners' Capital Noncontrolling interests Partners' Capital Attributable to Noncontrolling Interest Total capital Total liabilities, redeemable noncontrolling interests and equity Liabilities and Equity Malpractice loss contingency, letters of credit and surety bonds Malpractice Loss Contingency, Letters of Credit and Surety Bonds Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account, Class [Domain] Limited Partners' Capital Account, Class [Domain] Operating Partnership Third Party Interests [Member] -- None. No documentation exists for this element. -- Other consolidated subsidiaries Other Consolidated Subsidiaries [Member] Other Consolidated Subsidiaries [Member] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Emerging Growth Company Entity Emerging Growth Company Small Business Entity Small Business Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding 2019 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five 2024 Long-term Debt, Maturities, Repayments of Principal in Year Six Long-term Debt, Maturities, Repayments of Principal in Year Six Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Six Long-term Debt, Maturities, Repayments of Principal after Year Six Mortgage and other indebtedness Long-term Debt, Gross Unamortized discounts Debt Instrument, Unamortized Discount (Premium), Net Unamortized deferred financing costs Total mortgage and other indebtedness, net Condensed Financial Information Disclosure [Abstract] Condensed Financial Statements [Table] Condensed Financial Statements [Table] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Schedule of Guarantor Subsidiaries and Guarantor Properties Schedule of Guarantor Subsidiaries and Guarantor Properties [Table Text Block] Schedule of Guarantor Subsidiaries and Guarantor Properties [Table Text Block] Combined Guarantor Subsidiaries Condensed Financial Information of Parent Company Only Disclosure [Text Block] Number of extension options available (one or more) Condensed Income Statement [Table] Condensed Income Statement [Table] Condensed Income Statements, Captions [Line Items] Condensed Income Statements, Captions [Line Items] Schedule of Combined Balance Sheets - Guarantor Subsidiaries Condensed Balance Sheet [Table Text Block] Principal Amortization Principal Amortization [Member] Principal Amortization [Member] Rental revenues: Operating Leases, Lease Income [Abstract] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] CBL Management Affiliated Entity [Member] Management fee (as a percent) Property Management Fee, Percent Fee Management fee expense Management Fee Expense Amounts payable for management fees Due to Related Parties Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Above-market leases Above Market Leases [Member]