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STOCKHOLDERS' EQUITY - Common Stock Dividend (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  |  |  |  | 3 Months Ended
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Sep. 14, 2021 | Jun. 10, 2021 | Mar. 12, 2021 | Sep. 09, 2020 | Jun. 10, 2020 | Mar. 13, 2020 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020
Common Stock Dividend |  |  |  |  |  |  |  |  |  |  |  |
Total Dividend | $ 9,398 | $ 9,330 | $ 9,329 | $ 9,198 | $ 9,068 | $ 9,037 |  |  |  |  |  |
Dividend Paid, Cash % | 100.00% | 100.00% | 100.00% | 75.00% | 50.00% | 100.00% |  |  |  |  |  |
Dividend Paid, Stock % |  |  |  | 25.00% | 50.00% |  |  |  |  |  |  |
Cash Issued | $ 9,398 | $ 9,330 | $ 9,329 | $ 6,901 | $ 4,537 | $ 9,037 |  |  |  |  |  |
Stock Issued |  |  |  | 141 | 263 |  |  |  |  |  |  |
Dividend per share |  |  |  |  |  |  | $ 0.45 | $ 0.45 | $ 0.45 | $ 0.45 | $ 0.45 | $ 0.45
Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Dividend |  |  |  |  |  |  |  |  |  |  |  |
Share Price |  |  |  | $ 16.27 | $ 17.22 |  |  |  |  |  |  |

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