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v3.19.3.a.u2

Equity - Dividends (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2017
5.00% cumulative convertible preferred stock series 2005 B |  |
Class of Stock [Line Items] |  |
Preferred stock, dividend rate | 5.00% | 5.00%
4.50% cumulative convertible preferred stock |  |
Class of Stock [Line Items] |  |
Preferred stock, dividend rate | 4.50% |
5.75% cumulative convertible preferred stock |  |
Class of Stock [Line Items] |  |
Preferred stock, dividend rate | 5.75% | 5.75%

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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
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- Details
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