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UNCONSOLIDATED AFFILIATES AND COST METHOD INVESTMENTS (Joint Ventures) (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2015 | Jun. 30, 2015 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2011 | Oct. 31, 2015
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage | 35.00% |  |  |  |  | 35.00% |  |  |
Gain on sales of real estate assets |  | $ 14,065 | $ 14,173 |  | $ 32,232 | $ 5,342 | $ 1,980 |  |
Ambassador Town Center JV, LLC |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage | 35.00% |  |  |  |  | 35.00% |  |  |
Contributions from CBL related to exercises of stock options | $ 14,800 |  |  |  |  |  |  |  |
CBL/T-C, LLC | CoolSprings Galleria, Oak Park Mall and West County Center Interest |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  | 50.00% |  |  | 50.00% |  |  | 50.00% |
Gain on sales of real estate assets |  |  |  |  |  |  |  | $ 54,327 |
Capital expenditures incurred but not yet paid |  |  |  |  |  |  |  | 26,439 |
Investments in unconsolidated affiliates |  |  |  |  |  |  |  | $ 116,397 |
CBL/T-C, LLC | Pearland Town Center, Pearland, TX |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  |  |  |  |  |  | 88.00% |  |
CBL/T-C, LLC | Pearland Town Center, Pearland, TX | TIAA-CREF |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Contributions from noncontrolling interests |  |  |  |  |  |  | $ 18,264 |  |
Preferred return percentage |  |  |  | 8.00% |  |  |  |  |
Pearland Town Center, Pearland, TX |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Business acquisition, ownership percentage acquired |  |  |  | 12.00% |  |  | 12.00% |  |
Contributions from CBL related to exercises of stock options |  |  |  | $ 17,948 |  |  |  |  |
Parent Company |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage | 65.00% | 50.00% |  |  | 50.00% | 65.00% |  |  |
Parent Company | Ambassador Town Center JV, LLC |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  | 65.00% |  |  | 65.00% |  |  |  |
Contributions from CBL related to exercises of stock options | $ 13,320 |  |  |  |  |  |  |  |
Parent Company | CBL/T-C, LLC |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Joint venture, ownership percentage |  | 50.00% |  |  | 50.00% |  |  |  | 50.00%

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