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Unconsolidated Affiliates and Noncontrolling Interests (Unconsolidated Affiliates) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) entity | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) entity | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Number of entities - equity method of accounting | entity | 17 |  | 17 |  |
ASSETS |  |  |  |  |
Investment in real estate assets | $ 2,149,393 |  | $ 2,149,393 |  | $ 2,137,666
Accumulated depreciation | (595,825) |  | (595,825) |  | (564,612)
Real estate investment net, before development in process | 1,553,568 |  | 1,553,568 |  | 1,573,054
Developments in progress | 12,533 |  | 12,533 |  | 9,210
Net investment in real estate assets | 1,566,101 |  | 1,566,101 |  | 1,582,264
Other assets | 212,655 |  | 212,655 |  | 223,347
Total assets | 1,778,756 |  | 1,778,756 |  | 1,805,611
LIABILITIES |  |  |  |  |
Mortgage and other indebtedness, net | 1,256,445 |  | 1,256,445 |  | 1,266,046
Other liabilities | 43,314 |  | 43,314 |  | 46,160
Total liabilities | 1,299,759 |  | 1,299,759 |  | 1,312,206
OWNERS' EQUITY |  |  |  |  |
The Company | 222,817 |  | 222,817 |  | 228,313
Other investors | 256,180 |  | 256,180 |  | 265,092
Total owners' equity | 478,997 |  | 478,997 |  | 493,405
Total liabilities and owners' equity | 1,778,756 |  | 1,778,756 |  | $ 1,805,611
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] |  |  |  |  |
Total revenues | 58,156 | $ 62,854 | 117,855 | $ 127,058 |
Depreciation and amortization | (19,496) | (22,248) | (40,125) | (42,858) |
Interest income | 430 | 332 | 830 | 668 |
Interest expense | (13,146) | (14,181) | (25,984) | (27,670) |
Operating expenses | (16,639) | (18,333) | (35,387) | (38,405) |
Gain on extinguishment of debt | 0 | 63,294 | 0 | 63,294 |
Income from continuing operations before gain on sales of real estate assets | 9,305 | 71,718 | 17,189 | 82,087 |
Gain on sales of real estate assets | (6) | 60,377 | (77) | 141,336 |
Net income | $ 9,299 | 132,095 | $ 17,112 | 223,423 |
Ambassador Infrastructure, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 65.00% |  | 65.00% |  |
Ambassador Town Center JV, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 65.00% |  | 65.00% |  |
CBL/T-C, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
CBL-TRS Joint Venture, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
El Paso Outlet Outparcels, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Fremaux Town Center JV, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 65.00% |  | 65.00% |  |
G&I VIII CBL Triangle LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 10.00% |  | 10.00% |  |
Governor’s Square IB |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Governor’s Square Company |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 47.50% |  | 47.50% |  |
JG Gulf Coast Town Center LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Kentucky Oaks Mall Company |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Mall of South Carolina L.P. |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Mall of South Carolina Outparcel L.P. |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Port Orange I, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
River Ridge Mall JV, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 25.00% |  | 25.00% |  |
West Melbourne I, LLC |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
York Town Center, LP |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Percentage of equity interest in real estate property | 50.00% |  | 50.00% |  |
Parent Company |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] |  |  |  |  |
Net income | $ 6,325 | $ 64,349 | $ 11,698 | $ 96,739 |

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