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Non-Controlling Interests, Common Shares and Common Shares in Treasury and Preferred Shares (Tables) | 12 Months Ended
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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 |

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