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Equity and Redeemable Preferred Stock - Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Sep. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020
Class of Stock [Line Items] |  |  |
Preferred stock dividends | $ 17,082 |  | $ 6,440
Series A Mandatory Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Dividends per share (in usd per share) | $ 2.80 | $ 3.00 |
Preferred stock dividends | $ 6,900 |  | $ 6,440
Series B-1 Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Dividends per share (in usd per share) | $ 135.77 |  |
Preferred stock dividends | $ 9,704 |  |
Deemed dividends ($000) | $ 478 |  |

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- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in payment-in-kind (PIK). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
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