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Equity - Dividends (Details) | 12 Months Ended
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Dec. 31, 2020
5.00% cumulative convertible preferred stock series 2005 B |
Class of Stock [Line Items] |
Preferred stock, dividend rate | 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%

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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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- Details
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