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DIVIDENDS AND DISTRIBUTIONS PAYABLE	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Dividends and Distributions Payable	Dividends and Distributions Payable On November 10, 2015, the Board of Trustees declared a regular quarterly cash dividend of $0.25 per Common Share, which was paid on January 15, 2016 to holders of record as of December 31, 2015. In addition, on November 10, 2015, the Board of Trustees declared a special cash dividend of $0.25 per Common Share with the same record and payment date as the regular quarterly dividend. The special dividend is a result of the taxable capital gains for 2015 arising from property dispositions within the Funds.

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