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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands | Total | Series B Preferred Stock | Series C Preferred Stock | Preferred Stock Series B Preferred Stock | Preferred Stock Series C Preferred Stock | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Deficit Series B Preferred Stock | Accumulated Deficit Series C Preferred Stock | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2021 |  |  |  |  | 8,000 | 11,000 | 108,138 |  |  |  |  |
Beginning balance at Dec. 31, 2021 |  | $ 2,542,848 |  |  | $ 80 | $ 110 | $ 1,082 | $ 3,775,482 | $ (1,279,484) |  |  | $ 45,578
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | (82,906) |  |  |  |  |  |  | (82,906) |  |  |
Issuance of stock, net of expenses (in shares) |  |  |  |  |  |  | 150 |  |  |  |  |
Issuance of common stock, net of expenses |  | 486 |  |  |  |  | $ 1 | 485 |  |  |  |
Repurchase of shares of common stock (in shares) | [1] |  |  |  |  |  | (3,252) |  |  |  |  |
Repurchase of shares of common stock | [1] | (55,742) |  |  |  |  | $ (33) | (55,709) |  |  |  |
Equity based compensation expense |  | 2,642 |  |  |  |  |  | 2,642 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (76) |  |  |  |  |  | 74 | (150) |  |  |
Dividends declared on common stock |  | (46,215) |  |  |  |  |  |  | (46,215) |  |  |
Dividends declared on preferred stock |  |  | $ (3,750) | $ (4,469) |  |  |  |  |  | $ (3,750) | $ (4,469) |
Dividends attributable to dividend equivalents |  | (141) |  |  |  |  |  |  | (141) |  |  |
Change in unrealized gains on securities, net |  | (4,977) |  |  |  |  |  |  |  |  |  | (4,977)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 1,255 |  |  |  |  |  |  |  |  |  | 1,255
Balance (in shares) at Mar. 31, 2022 |  |  |  |  | 8,000 | 11,000 | 105,036 |  |  |  |  |
Ending balance at Mar. 31, 2022 |  | 2,348,955 |  |  | $ 80 | $ 110 | $ 1,050 | 3,722,974 | (1,417,115) |  |  | 41,856
Balance (in shares) at Dec. 31, 2021 |  |  |  |  | 8,000 | 11,000 | 108,138 |  |  |  |  |
Beginning balance at Dec. 31, 2021 |  | 2,542,848 |  |  | $ 80 | $ 110 | $ 1,082 | 3,775,482 | (1,279,484) |  |  | 45,578
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | (183,273) |  |  |  |  |  |  |  |  |  |
Dividends declared on preferred stock |  | (16,438) |  |  |  |  |  |  |  |  |  |
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 1,255 |  |  |  |  |  |  |  |  |  |
Balance (in shares) at Jun. 30, 2022 |  |  |  |  | 8,000 | 11,000 | 101,793 |  |  |  |  |
Ending balance at Jun. 30, 2022 |  | 2,146,388 |  |  | $ 80 | $ 110 | $ 1,018 | 3,679,078 | (1,570,817) |  |  | 36,919
Balance (in shares) at Mar. 31, 2022 |  |  |  |  | 8,000 | 11,000 | 105,036 |  |  |  |  |
Beginning balance at Mar. 31, 2022 |  | 2,348,955 |  |  | $ 80 | $ 110 | $ 1,050 | 3,722,974 | (1,417,115) |  |  | 41,856
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | (100,367) |  |  |  |  |  |  | (100,367) |  |  |
Issuance of stock, net of expenses (in shares) |  |  |  |  |  |  | 38 |  |  |  |  |
Issuance of common stock, net of expenses |  | 553 |  |  |  |  | $ 1 | 552 |  |  |  |
Repurchase of shares of common stock (in shares) | [1] |  |  |  |  |  | (3,281) |  |  |  |  |
Repurchase of shares of common stock | [1] | (47,512) |  |  |  |  | $ (33) | (47,479) |  |  |  |
Equity based compensation expense |  | 3,540 |  |  |  |  |  | 3,540 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (662) |  |  |  |  |  | (509) | (153) |  |  |
Dividends declared on common stock |  | (44,789) |  |  |  |  |  |  | (44,789) |  |  |
Dividends declared on preferred stock |  | (8,219) | (3,750) | (4,469) |  |  |  |  |  | (3,750) | (4,469) |
Dividends attributable to dividend equivalents |  | (174) |  |  |  |  |  |  | (174) |  |  |
Change in unrealized gains on securities, net |  | (4,937) |  |  |  |  |  |  |  |  |  | (4,937)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 0 |  |  |  |  |  |  |  |  |  |
Balance (in shares) at Jun. 30, 2022 |  |  |  |  | 8,000 | 11,000 | 101,793 |  |  |  |  |
Ending balance at Jun. 30, 2022 |  | 2,146,388 |  |  | $ 80 | $ 110 | $ 1,018 | 3,679,078 | (1,570,817) |  |  | 36,919
Balance (in shares) at Dec. 31, 2022 |  |  |  |  | 8,000 | 11,000 | 101,802 |  |  |  |  |
Beginning balance at Dec. 31, 2022 |  | 1,988,849 |  |  | $ 80 | $ 110 | $ 1,018 | 3,684,291 | (1,717,991) |  |  | 21,341
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | 72,784 |  |  |  |  |  |  | 72,784 |  |  |
Issuance of stock, net of expenses (in shares) |  |  |  |  |  |  | 168 |  |  |  |  |
Issuance of common stock, net of expenses |  | 18 |  |  |  |  | $ 1 | 17 |  |  |  |
Repurchase of shares of common stock (in shares) | [2] |  |  |  |  |  | (58) |  |  |  |  |
Repurchase of shares of common stock | [2] | (599) |  |  |  |  | $ 0 | (599) |  |  |  |
Equity based compensation expense |  | 3,019 |  |  |  |  |  | 3,019 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (375) |  |  |  |  |  | 557 | (932) |  |  |
Dividends declared on common stock |  | (35,669) |  |  |  |  |  |  | (35,669) |  |  |
Dividends declared on preferred stock |  |  | (3,750) | (4,469) |  |  |  |  |  | (3,750) | (4,469) |
Dividends attributable to dividend equivalents |  | (86) |  |  |  |  |  |  | (86) |  |  |
Change in unrealized gains on securities, net |  | (1,116) |  |  |  |  |  |  |  |  |  | (1,116)
Balance (in shares) at Mar. 31, 2023 |  |  |  |  | 8,000 | 11,000 | 101,912 |  |  |  |  |
Ending balance at Mar. 31, 2023 |  | 2,018,606 |  |  | $ 80 | $ 110 | $ 1,019 | 3,687,285 | (1,690,113) |  |  | 20,225
Balance (in shares) at Dec. 31, 2022 |  |  |  |  | 8,000 | 11,000 | 101,802 |  |  |  |  |
Beginning balance at Dec. 31, 2022 |  | 1,988,849 |  |  | $ 80 | $ 110 | $ 1,018 | 3,684,291 | (1,717,991) |  |  | 21,341
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | 46,856 |  |  |  |  |  |  |  |  |  |
Dividends declared on preferred stock |  | (16,437) |  |  |  |  |  |  |  |  |  |
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 0 |  |  |  |  |  |  |  |  |  |
Balance (in shares) at Jun. 30, 2023 |  |  |  |  | 8,000 | 11,000 | 101,916 |  |  |  |  |
Ending balance at Jun. 30, 2023 |  | 1,944,769 |  |  | $ 80 | $ 110 | $ 1,019 | 3,691,233 | (1,761,093) |  |  | 13,420
Balance (in shares) at Mar. 31, 2023 |  |  |  |  | 8,000 | 11,000 | 101,912 |  |  |  |  |
Beginning balance at Mar. 31, 2023 |  | 2,018,606 |  |  | $ 80 | $ 110 | $ 1,019 | 3,687,285 | (1,690,113) |  |  | 20,225
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | (25,928) |  |  |  |  |  |  | (25,928) |  |  |
Issuance of stock, net of expenses (in shares) |  |  |  |  |  |  | 4 |  |  |  |  |
Issuance of common stock, net of expenses |  | 16 |  |  |  |  | $ 0 | 16 |  |  |  |
Repurchase of shares of common stock (in shares) | [2] |  |  |  |  |  | 0 |  |  |  |  |
Repurchase of shares of common stock | [2] | 0 |  |  |  |  | $ 0 | 0 |  |  |  |
Equity based compensation expense |  | 3,932 |  |  |  |  |  | 3,932 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (1,044) |  |  |  |  |  | 0 | (1,044) |  |  |
Dividends declared on common stock |  | (35,671) |  |  |  |  |  |  | (35,671) |  |  |
Dividends declared on preferred stock |  | (8,218) | $ (3,750) | $ (4,469) |  |  |  |  |  | $ (3,750) | $ (4,469) |
Dividends attributable to dividend equivalents |  | (118) |  |  |  |  |  |  | (118) |  |  |
Change in unrealized gains on securities, net |  | (6,805) |  |  |  |  |  |  |  |  |  | (6,805)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 0 |  |  |  |  |  |  |  |  |  |
Balance (in shares) at Jun. 30, 2023 |  |  |  |  | 8,000 | 11,000 | 101,916 |  |  |  |  |
Ending balance at Jun. 30, 2023 |  | $ 1,944,769 |  |  | $ 80 | $ 110 | $ 1,019 | $ 3,691,233 | $ (1,761,093) |  |  | $ 13,420
[1] | For the six months ended June 30, 2022 includes approximately $1.0 million (56,690 shares) surrendered for tax purposes related to equity-based compensation awards.
[2] | For the six months ended June 30, 2023 includes approximately $600,000 (58,505 shares) surrendered for tax purposes related to equity-based compensation awards.

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