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SUBSEQUENT EVENTS (Tables) | 12 Months Ended
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Apr. 30, 2015
SUBSEQUENT EVENTS [Abstract] |
Common and Preferred Share Distributions | On June 2, 2015, the Company’s Board of Trustees declared the following distributions:
Class of shares/units |  | Quarterly Amount per Share or Unit |  | Record Date | Payment Date
Common shares and limited partnership units |  | $ | 0.1300 |  | June 15, 2015 | July 1, 2015
Preferred shares: |  |  |  |  |  |
Series A |  | $ | 0.5156 |  | June 15, 2015 | June 30, 2015
Series B |  | $ | 0.4968 |  | June 15, 2015 | June 30, 2015

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- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
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