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Preferred Shares Of Beneficial Interest (Tables)
12 Months Ended
Dec. 31, 2014
Equity [Abstract]  
Preferred Dividends Declared Per Share
The following table discloses the cumulative redeemable preferred dividends declared per share:
 
 
Year Ended December 31,
 
 
2014
 
2013
 
2012
Series of Preferred Shares:
 
 
 
 
 
 
Series D
 
$

 
$
13.08

 
$
50.63

Series E
 

 

 
162.16

Series F
 
162.50

 
160.24

 
162.50