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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) $ / shares shares
Series C Preferred Stock |  |
Preferred Stock, dividend rate | 6.50% |
Series B Preferred Stock |  |
Preferred Stock, dividend rate | 7.50% |
Preferred Stock | Series C Preferred Stock |  |
Preferred Stock, dividend rate | 6.50% | 6.50%
Preferred Stock, liquidation preference per share (in dollars per share) | $ 25.00 | $ 25.00
Preferred Stock | Series B Preferred Stock |  |
Preferred Stock, dividend rate | 7.50% | 7.50%
Preferred Stock, liquidation preference per share (in dollars per share) | $ 25.00 | $ 25.00
Common Stock |  |
Adjustments related to tax withholding for share-based compensation | $ | $ 799 | $ 2,700
Shares paid for tax withholding for share based compensation (in shares) | shares | 213,123 | 337,026

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