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Consolidated Statements of Changes in Shareholders' Equity - Unaudited (Parenthetical) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Special dividend (shares) |  |  | 0.15389 |
Series C Preferred Stock |  |  |  |
Preferred stock, dividends, per share, cash paid (usd per share) | $ 0.350359 | $ 0.4375 | $ 0.69514 | $ 0.8750
Series D Preferred Stock |  |  |  |
Preferred stock, dividends, per share, cash paid (usd per share) | 0.336942 | 0.40625 | 0.743192 | 0.81250
Series E Preferred Stock |  |  |  |
Preferred stock, dividends, per share, cash paid (usd per share) | 0.403125 | 0.403125 | 0.806250 | 0.806250
Series F Preferred Stock |  |  |  |
Preferred stock, dividends, per share, cash paid (usd per share) | $ 0.375 | $ 0.375 | $ 0.750 | $ 0.750

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