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Variable Interest Entities, Contingent Liabilities and Consolidated Joint Ventures - MCB Real Estate, LLC (Details) - Consolidated JV | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 USD ($) item | Dec. 31, 2017 USD ($) item | Jan. 30, 2018
Consolidated VIEs Carrying Amount of Assets and Liabilities |  |  |
Number of joint ventures with controlling interest | 5 |  |
Sale of real estate | Retail Property, Fort Bend, Texas | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |
Consolidated VIEs Carrying Amount of Assets and Liabilities |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) |  | 85.00% | 85.00%
MCB Real Estate LLC And Its Affiliates |  |  |
Consolidated VIEs Carrying Amount of Assets and Liabilities |  |  |
Number of joint ventures with controlling interest | 4 | 4 |
Investment in consolidated joint ventures | $ | $ 9,859,000 | $ 9,705,000 |

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- Details
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