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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands | 3 Months Ended
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Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019
Proceeds from issuance of common stock, issuance costs |  |  | $ 9,315 |  | $ 5,568 |
Dividends paid, per share (in dollars per share) | $ 0.16 | $ 0.16 | $ 0.16 | $ 0.64 | $ 0.16 | $ 0.16
Allocated costs and taxes |  |  |  |  | $ 8,338 |

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