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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands | Total | Series C Preferred Stock | Series B Preferred Stock | Preferred Stock Series C Preferred Stock | Preferred Stock Series B Preferred Stock | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Deficit Series C Preferred Stock | Accumulated Deficit Series B Preferred Stock | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Preferred stock, shares outstanding, beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  | 11,000,000 | 8,000,000 |  |  |  |  |  |  |
Common stock, shares outstanding, beginning balance (in shares) at Dec. 31, 2020 |  |  |  |  |  |  | 112,929,000 |  |  |  |  |  |
Beginning balance at Dec. 31, 2020 |  | $ 2,524,802 |  |  | $ 110 | $ 80 | $ 1,129 |  | $ 3,851,517 | $ (1,405,327) |  |  | $ 77,293
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | 328,870 |  |  |  |  |  |  |  | 328,870 |  |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  |  | 288,000 |  |  |  |  |  |
Issuance of common stock, net of expenses |  | $ 1,832 |  |  |  |  | $ 3 |  | 1,829 |  |  |  |
Repurchase of shares of common stock (in shares) |  | (5,025,374) |  |  |  |  | (5,079,000) | [1] |  |  |  |  |
Repurchase of shares of common stock | [1] | $ (86,393) |  |  |  |  | $ (50) |  | (86,343) |  |  |  |
Equity based compensation expense |  | 9,038 |  |  |  |  |  |  | 9,038 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (837) |  |  |  |  |  |  | (559) | (278) |  |  |
Dividends declared on common stock |  | (169,275) |  |  |  |  |  |  |  | (169,275) |  |  |
Dividends declared on preferred stock |  | (32,875) | $ (17,875) | $ (15,000) |  |  |  |  |  |  | $ (17,875) | $ (15,000) |
Dividends attributable to dividend equivalents |  | (599) |  |  |  |  |  |  |  | (599) |  |  |
Change in unrealized losses on securities, net |  | (32,774) |  |  |  |  |  |  |  |  |  |  | (32,774)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | 1,059 |  |  |  |  |  |  |  |  |  |  | 1,059
Preferred stock, shares outstanding, ending balance (in shares) at Dec. 31, 2021 |  |  |  |  | 11,000,000 | 8,000,000 |  |  |  |  |  |  |
Common stock, shares outstanding, ending balance (in shares) at Dec. 31, 2021 |  |  |  |  |  |  | 108,138,000 |  |  |  |  |  |
Ending balance at Dec. 31, 2021 |  | 2,542,848 |  |  | $ 110 | $ 80 | $ 1,082 |  | 3,775,482 | (1,279,484) |  |  | 45,578
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | (231,581) |  |  |  |  |  |  |  | (231,581) |  |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  |  | 197,000 |  |  |  |  |  |
Issuance of common stock, net of expenses |  | $ 1,098 |  |  |  |  | $ 1 |  | 1,097 |  |  |  |
Repurchase of shares of common stock (in shares) |  | (6,476,746) |  |  |  |  | (6,533,000) | [1] |  |  |  |  |
Repurchase of shares of common stock | [1] | $ (103,253) |  |  |  |  | $ (65) |  | (103,188) |  |  |  |
Equity based compensation expense |  | 11,335 |  |  |  |  |  |  | 11,335 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (2,432) |  |  |  |  |  |  | (435) | (1,997) |  |  |
Dividends declared on common stock |  | (171,426) |  |  |  |  |  |  |  | (171,426) |  |  |
Dividends declared on preferred stock |  | (32,875) | $ (17,875) | $ (15,000) |  |  |  |  |  |  | (17,875) | (15,000) |
Dividends attributable to dividend equivalents |  | (628) |  |  |  |  |  |  |  | (628) |  |  |
Change in unrealized losses on securities, net |  | (25,492) |  |  |  |  |  |  |  |  |  |  | (25,492)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | $ 1,255 |  |  |  |  |  |  |  |  |  |  | 1,255
Preferred stock, shares outstanding, ending balance (in shares) at Dec. 31, 2022 |  |  | 11,000,000 | 8,000,000 | 11,000,000 | 8,000,000 |  |  |  |  |  |  |
Common stock, shares outstanding, ending balance (in shares) at Dec. 31, 2022 |  | 101,802,000 |  |  |  |  | 101,802,000 |  |  |  |  |  |
Ending balance at Dec. 31, 2022 |  | $ 1,988,849 |  |  | $ 110 | $ 80 | $ 1,018 |  | 3,684,291 | (1,717,991) |  |  | 21,341
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) |  | 80,164 |  |  |  |  |  |  |  | 80,164 |  |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  |  | 172,000 |  |  |  |  |  |
Issuance of common stock, net of expenses |  | $ (6) |  |  |  |  | $ 1 |  | (7) |  |  |  |
Repurchase of shares of common stock (in shares) |  | 0 |  |  |  |  | (58,000) | [1] |  |  |  |  |
Repurchase of shares of common stock | [1] | $ (600) |  |  |  |  |  |  | (600) |  |  |  |
Equity based compensation expense |  | 14,526 |  |  |  |  |  |  | 14,526 |  |  |  |
Change in accrued dividends attributable to stock-based awards |  | (3,376) |  |  |  |  |  |  | 557 | (3,933) |  |  |
Dividends declared on common stock |  | (142,681) |  |  |  |  |  |  |  | (142,681) |  |  |
Dividends declared on preferred stock |  | (32,875) | $ (17,875) | $ (15,000) |  |  |  |  |  |  | $ (17,875) | $ (15,000) |
Dividends attributable to dividend equivalents |  | (443) |  |  |  |  |  |  |  | (443) |  |  |
Change in unrealized losses on securities, net |  | (3,643) |  |  |  |  |  |  |  |  |  |  | (3,643)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk |  | $ 0 |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares outstanding, ending balance (in shares) at Dec. 31, 2023 |  |  | 11,000,000 | 8,000,000 | 11,000,000 | 8,000,000 |  |  |  |  |  |  |
Common stock, shares outstanding, ending balance (in shares) at Dec. 31, 2023 |  | 101,916,000 |  |  |  |  | 101,916,000 |  |  |  |  |  |
Ending balance at Dec. 31, 2023 |  | $ 1,899,915 |  |  | $ 110 | $ 80 | $ 1,019 |  | $ 3,698,767 | $ (1,817,759) |  |  | $ 17,698
[1] | For the year ended December 31, 2023, includes approximately $600,000 (58,505 shares) surrendered for tax purposes related to equity-based compensation awards. For the year ended December 31, 2022, includes approximately $1.0 million (56,690 shares) surrendered for tax purposes related to equity-based compensation awards. For the year ended December 31, 2021, includes approximately $799,000 (53,281 shares) surrendered for tax purposes related to equity-based compensation awards.

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