Mortgage and Other Indebtedness (Details) (USD $) | 3 Months Ended | 1 Months Ended | 12 Months Ended | | | |
Mar. 31, 2015 | Jan. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Nov. 30, 2013 | Oct. 31, 2014 |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 4.94% | | 4.93% | | | |
Long-term debt | 4,667,270,000 | | | | | |
Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 5.50% | | 5.50% | | | |
Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 1.68% | | 1.69% | | | |
Wells Fargo Bank | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Line of credit, extension fee (percent) | 0.20% | | | | | |
Senior Unsecured Notes | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, face amount | | | | 450,000,000 | | |
Notice required to redeem debt, term | 30 days | | | | | |
Debt instrument, redemption price, percentage | 100.00% | | | | | |
Senior Unsecured Notes | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | | | | 5.25% | 5.25% | |
Senior Unsecured Notes | Fixed Rate Operating Loans | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Unamortized debt discount | 4,137,000 | | 4,230,000 | | | |
Senior Unsecured Notes | Minimum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Secured debt to total assets (as a percent) | 40.00% | | | | | |
Senior Unsecured Notes | Minimum | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, increase in variable interest rate | 0.25% | | | | | |
Senior Unsecured Notes | Maximum | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, increase in variable interest rate | 1.00% | | | | | |
Non-recourse loans on operating properties | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, debt default threshold, minimum loan amount | 50,000,000 | | | | | |
Non-recourse loans on operating properties | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 5.62% | | 5.62% | | | |
Non-recourse loans on operating properties | Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 2.30% | | 2.29% | | | |
5.250% Senior Notes Due 2023 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Long-term debt, percentage bearing fixed interest, amount | 445,863,000 | | 445,770,000 | | | |
Debt instrument, redemption price, percentage | 100.00% | | | | | |
5.250% Senior Notes Due 2023 | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 5.25% | | 5.25% | | | |
5.250% Senior Notes Due 2023 | Minimum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Secured debt to total assets (as a percent) | 40.00% | | | | | |
5.250% Senior Notes Due 2023 | Maximum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Secured debt to total assets (as a percent) | 45.00% | | | | | |
Senior Notes Due 2024 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Long-term debt, percentage bearing fixed interest, amount | 299,928,000 | | 299,925,000 | | | |
Debt instrument, redemption price, percentage | 100.00% | | | | | |
Senior Notes Due 2024 | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 4.60% | | 4.60% | | | 4.60% |
Other | Fixed Rate Interest | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 3.50% | | 3.50% | | | |
Recourse term loans on operating properties | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, debt default threshold, minimum loan amount | 150,000,000 | | | | | |
Recourse term loans on operating properties | Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 2.93% | | 2.91% | | | |
Construction loan | Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 2.68% | | 2.66% | | | |
Unsecured lines of credit | Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 1.57% | | 1.56% | | | |
Unsecured term loans | Variable Rate Interest Member | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 1.68% | | 1.71% | | | |
Unsecured lines of credit | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Number of unsecured term loans | 2 | | | | | |
Loan agreement, basis spread on variable rate | 1.40% | | | | | |
Unsecured lines of credit | Minimum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Loan agreement, basis spread on variable rate | 1.00% | | | | | |
Unsecured lines of credit | Maximum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Loan agreement, basis spread on variable rate | 1.75% | | | | | |
Annual facility Fee (percent) | 0.35% | | | | | |
Wells Fargo Bank | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Letter of credit, outstanding | 800,000 | | | | | |
Unsecured Term Loan 3 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Loan agreement, basis spread on variable rate | 1.50% | | | | | |
Unsecured Term Loan 2 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Loan agreement, basis spread on variable rate | | 1.55% | 1.90% | | | |
Required | Senior Unsecured Notes | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Secured debt to total assets (as a percent) | 45.00% | | | | | |
Total debt to total asset value (as a percent) | 60.00% | | | | | |
Total Unencumbered Assets to Unsecured Debt (as a percent) | 150.00% | | | | | |
Consolidated income available for debt service to annual debt service charge (as a percent) | 150.00% | | | | | |
Required | Unsecured Credit Facility and Term Loan | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Total debt to total asset value (as a percent) | 60.00% | | | | | |
Total Unencumbered Assets to Unsecured Debt (as a percent) | 160.00% | | | | | |
Unencumbered NOI to unsecured interest expense (as a percent) | 175.00% | | | | | |
EBITDA to fixed charges (debt service) (as a percent) | 150.00% | | | | | |
Actual | Senior Unsecured Notes | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Secured debt to total assets (as a percent) | 37.00% | | | | | |
Total debt to total asset value (as a percent) | 53.60% | | | | | |
Total Unencumbered Assets to Unsecured Debt (as a percent) | 238.10% | | | | | |
Consolidated income available for debt service to annual debt service charge (as a percent) | 320.00% | | | | | |
Actual | Unsecured Credit Facility and Term Loan | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Total debt to total asset value (as a percent) | 49.20% | | | | | |
Total Unencumbered Assets to Unsecured Debt (as a percent) | 260.00% | | | | | |
Unencumbered NOI to unsecured interest expense (as a percent) | 420.00% | | | | | |
EBITDA to fixed charges (debt service) (as a percent) | 220.00% | | | | | |
Interest Rate Swap | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Number of unsecured term loans | | | 4 | | | |
Derivative, Number of Instruments Held | 4 | | 4 | | | |
Derivative, Notional Amount | 104,492,000 | | 105,584,000 | | | |
CBL & Associates Properties, Inc. | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Long-term debt, percentage bearing fixed interest, amount | 3,984,876,000 | | 4,004,064,000 | | | |
Mortgage and other indebtedness amount carrying value | 684,835,000 | | 696,396,000 | | | |
Long-term debt | 4,669,711,000 | | 4,700,460,000 | | | |
CBL & Associates Properties, Inc. | Non-recourse loans on operating properties | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Long-term debt, percentage bearing fixed interest, amount | 3,234,029,000 | | 3,252,730,000 | | | |
Mortgage and other indebtedness amount carrying value | 17,051,000 | | 17,121,000 | | | |
CBL & Associates Properties, Inc. | Other | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Long-term debt, percentage bearing fixed interest, amount | 5,056,000 | | 5,639,000 | | | |
CBL & Associates Properties, Inc. | Recourse term loans on operating properties | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 9,279,000 | | 7,638,000 | | | |
CBL & Associates Properties, Inc. | Construction loan | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 1,440,000 | | 454,000 | | | |
CBL & Associates Properties, Inc. | Unsecured lines of credit | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 207,065,000 | | 221,183,000 | | | |
CBL & Associates Properties, Inc. | Unsecured term loans | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 450,000,000 | | 450,000,000 | | | |
Treasury Rate | 5.250% Senior Notes Due 2023 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Derivative, basis spread on variable rate | 0.40% | | | | | |
Treasury Rate | Senior Notes Due 2024 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Derivative, basis spread on variable rate | 0.35% | | | | | |
Senior Notes Due 2024 | Unsecured lines of credit | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Unamortized debt discount | 72,000 | | 75,000 | | | |
Debt instrument, face amount | | | 300,000,000 | | | |
Unsecured term loans | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Debt instrument, face amount | 400,000,000 | | | | | |
Interest rate at period end | 1.68% | | | | | |
Unsecured lines of credit | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Number of unsecured term loans | 3 | | | | | |
Mortgage and other indebtedness amount carrying value | 214,088,000 | | | | | |
Annual facility Fee (percent) | 0.30% | | | | | |
Total Capacity, line of credit | 1,300,000,000 | | | | | |
Unsecured lines of credit | Minimum | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Annual facility Fee (percent) | 0.15% | | | | | |
Unsecured Line of Credit 1 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 43,398,000 | | | | | |
Total Capacity, line of credit | 600,000,000 | | | | | |
First Tennessee | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 9,313,000 | | | | | |
Total Capacity, line of credit | 100,000,000 | | | | | |
Unsecured Line of Credit 2 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Mortgage and other indebtedness amount carrying value | 161,377,000 | | | | | |
Total Capacity, line of credit | 600,000,000 | | | | | |
Wells Fargo Bank | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Total Capacity, line of credit | 50,000,000 | | | | | |
Letter of credit, outstanding | 6,110,000 | | | | | |
Unsecured Term Loan 2 | | | | | | |
Debt Instrument [Line Items] | | | | | | |
Weighted Average Interest Rate (percent) | 1.72% | | | | | |
Debt instrument, face amount | 50,000,000 | | | | | |
Total Capacity, line of credit | 20,000,000 | | | | | |
Letter of credit, outstanding | 113,000 | | | | | |