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Unconsolidated Affiliates and Noncontrolling Interests - Loan Repayment (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Sep. 30, 2018 | Apr. 30, 2018
Schedule of Equity Method Investments [Line Items] |  |  |
Net proceeds from fixed-rate loan |  | $ 155,000 |
CoolSprings Galleria |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Interest rate (as a percent) |  | 6.98% | 4.839%
Repayments of debt | $ 97,732 |  |

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- Definition The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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