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Non-Controlling Interests, Common Shares and Common Shares in Treasury and Preferred Shares (Tables)
 12 Months Ended
Dec. 31, 2019
Common Shares [Member]  
Redeemable Noncontrolling Interest [Line Items]  
Common Share Dividends Declared Common share dividends declared were as follows:

 

 

For the Year Ended December 31,

 

 

 

2019

 

 

2018

 

 

2017

 

Common share dividends declared per share

 

$

0.80

 

 

$

1.16

 

 

$

1.52