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SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 01, 2016 | Dec. 02, 2016 | Oct. 31, 2016 | Dec. 07, 2016 | Apr. 30, 2016
Common Shares and Limited Partnership Units [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividends Payable, Date Declared |  |  | Dec. 07, 2016 |  |
Record Date |  |  | Jan. 03, 2017 |  |
Payment Date |  |  | Jan. 17, 2017 |  |
Series B Preferred Stock [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividends Payable, Date Declared |  |  | Dec. 07, 2016 |  |
Record Date |  |  | Dec. 23, 2016 |  |
Payment Date |  |  | Jan. 02, 2017 |  |
Shares outstanding (in shares) |  |  | 4,600,000 |  | 4,600,000
Series A Preferred Stock [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Distribution rate percentage (in hundredths) | 8.25% |  |  |  |
Shares outstanding (in shares) |  |  | 1,150,000 |  | 1,150,000
Subsequent Event [Member] | Common Shares and Limited Partnership Units [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly amount per share or unit (in dollars per share) |  |  |  | $ 0.1300 |
Subsequent Event [Member] | Series B Preferred Stock [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly amount per share or unit (in dollars per share) |  |  |  | $ 0.4968 |
Subsequent Event [Member] | Series A Preferred Stock [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares redeemed |  | 1,150,000 |  |  |
Redemption price (in dollars per share) |  | $ 25.00 |  |  |
Redemption date |  | Dec. 02, 2016 |  |  |
Aggregate redemption price |  | $ 29,164 |  |  |
Shares outstanding (in shares) |  | 0 |  |  |

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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The redemption (or callable) amount of currently redeemable preferred stock. Includes amounts representing dividends not currently declared or paid but which will be payable under the redemption features or for which ultimate payment is solely within the control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644 + Details
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