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RELATED PARTY TRANSACTIONS (UNITED DOMINION REALTY, L.P.) (Tables) | 3 Months Ended
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Mar. 31, 2020
United Dominion Realty L.P. |
Related Party Transaction [Line Items] |
Schedule of Notes payable due to General Partner | The following table summarizes the Operating Partnership’s Notes payable due to the General Partner as of March 31, 2020 and December 31, 2019 (dollars in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Interest rate at | ​ | Balance Outstanding
​ |  | March 31, | ​ | March 31, |  | December 31,
​ | ​ | 2020 | ​ | 2020 | ​ | 2019
Note due August 2021 |  | 5.34 | % | ​ | $ | 5,500 | ​ | $ | 5,500
Note due December 2023 |  | 5.18 | % | ​ |  | 83,196 | ​ |  | 83,196
Note due April 2026 |  | 4.12 | % | ​ |  | 184,638 | ​ |  | 184,638
Note due November 2028 | ​ | 4.69 | % | ​ | ​ | 133,205 | ​ | ​ | 133,205
Note due December 2028 (a) | ​ | 3.28 | % | ​ | ​ | 229,199 | ​ | ​ | 230,694
Total notes payable due to the General Partner |  |  | ​ | ​ | $ | 635,738 | ​ | $ | 637,233
(a) | There is no limit on the total commitments under this unsecured revolving note. Interest is incurred on the unpaid principal balance at a variable interest rate equivalent to the General Partner’s weighted average interest rate on borrowings, or 3.28% as of March 31, 2020. The note matures on December 1, 2028. To the extent there is an outstanding principal balance on the revolving note payable, the General Partner, at its discretion, can demand payment at any time prior to the stated maturity date of the note.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. + References No definition available. + Details
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