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Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Cash dividends declared |  |
Common stock, dividend per share (in dollars per share) | $ 0.43 | $ 0.39
Series B Preferred Stock [Member] |  |
Cash dividends declared |  |
Preferred stock, dividend per share (in dollars per share) | 14.09 |
Series C Preferred Stock [Member] |  |
Cash dividends declared |  |
Preferred stock, dividend per share (in dollars per share) | $ 24.50 | $ 24.50

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