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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Stockholders' Equity Note [Abstract] |
Schedule of cash dividends declared on Series B preferred stock | The following table presents cash dividends declared by the Company on its Series B Preferred Stock from January 1, 2018 through December 31, 2020:
Year |  | Declaration Date |  | Record Date |  | Payment Date |  | Dividend Per Share
2020 |  | November 18, 2020 |  | December 4, 2020 |  | December 31, 2020 |  | $0.46875
|  | August 12, 2020 |  | September 8, 2020 |  | September 30, 2020 |  | 0.46875
|  | July 1, 2020 |  | July 15, 2020 |  | July 31, 2020 |  | 0.93750
2019 |  | November 15, 2019 |  | December 2, 2019 |  | December 31, 2019 |  | $0.46875
|  | August 9, 2019 |  | August 30, 2019 |  | September 30, 2019 |  | 0.46875
|  | May 20, 2019 |  | June 3, 2019 |  | June 28, 2019 |  | 0.46875
|  | February 15, 2019 |  | March 4, 2019 |  | March 29, 2019 |  | 0.46875
2018 |  | November 26, 2018 |  | December 7, 2018 |  | December 28, 2018 |  | $0.46875
|  | August 20, 2018 |  | September 7, 2018 |  | September 28, 2018 |  | 0.46875
|  | May 17, 2018 |  | June 4, 2018 |  | June 29, 2018 |  | 0.46875
|  | February 20, 2018 |  | March 2, 2018 |  | March 30, 2018 |  | 0.46875
Schedule of cash dividends declared on common stock | The following table presents cash dividends declared by the Company on its common stock from January 1, 2018 through December 31, 2020:
Year |  | Declaration Date |  | Record Date |  | Payment Date |  | Dividend Per Share |
2020 |  | December 17, 2020 |  | December 30, 2020 |  | January 29, 2021 |  | $0.075 | (1)
|  | August 6, 2020 |  | September 30, 2020 |  | October 30, 2020 |  | 0.05 |
2019 |  | December 12, 2019 |  | December 30, 2019 |  | January 31, 2020 |  | $0.20 |
|  | September 12, 2019 |  | September 30, 2019 |  | October 31, 2019 |  | 0.20 |
|  | June 12, 2019 |  | July 1, 2019 |  | July 31, 2019 |  | 0.20 |
|  | March 6, 2019 |  | March 29, 2019 |  | April 30, 2019 |  | 0.20 |
2018 |  | December 12, 2018 |  | December 28, 2018 |  | January 31, 2019 |  | $0.20 |
|  | September 13, 2018 |  | October 1, 2018 |  | October 31, 2018 |  | 0.20 |
|  | June 7, 2018 |  | June 29, 2018 |  | July 31, 2018 |  | 0.20 |
|  | March 7, 2018 |  | March 29, 2018 |  | April 30, 2018 |  | 0.20 |
(1) At December 31, 2020, we had accrued dividends and dividend equivalents payable of $34.0 million related to the common stock dividend declared on December 17, 2020. This dividend will be considered taxable income to the recipient in 2021. For more information see the Company’s 2020 Dividend Tax Information on its website.
Public Offering of Common Stock | The table below presents information with respect to shares of the Company’s common stock issued through public offerings during the year ended December 31, 2018.
Share Issue Date |  | Shares Issued |  | Gross Proceeds Per Share |  | Gross Proceeds |
(In Thousands, Except Per Share Amounts) |  |  |  |  |  |  |
August 7, 2018 |  | 50,875 |  | (1) |  | $ | 7.78 |  |  | $ | 395,807 |  | (1)
(1)Includes approximately 875,000 shares issued on September 5, 2018 pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company incurred approximately $6.4 million of underwriting discounts and related expenses in connection with this equity offering.
Schedule of changes in balances in each component of the entity's AOCI | The following table presents changes in the balances of each component of the Company’s AOCI for the years ended December 31, 2020, 2019 and 2018:
|  | For the Year Ended December 31,
|  | 2020 |  | 2019 |  | 2018
(In Thousands) |  | Net Unrealized Gain/(Loss) on AFS Securities |  | Net Gain/(Loss) on Swaps |  | Net Unrealized Gain/(Loss) on Financing Agreements (3) |  | Total AOCI |  | Net Unrealized Gain/(Loss) on AFS Securities |  | Net Gain/(Loss) on Swaps |  | Total AOCI |  | Net Unrealized Gain/(Loss) on AFS Securities |  | Net Gain/(Loss) on Swaps |  | Total AOCI
Balance at beginning of period |  | $ | 392,722 |  |  | $ | (22,675) |  |  | $ | — |  |  | $ | 370,047 |  |  | $ | 417,167 |  |  | $ | 3,121 |  |  | $ | 420,288 |  |  | $ | 620,648 |  |  | $ | (11,424) |  |  | $ | 609,224 |
OCI before reclassifications |  | 420,281 |  |  | (50,127) |  |  | (2,314) |  |  | 367,840 |  |  | 20,335 |  |  | (23,342) |  |  | (3,007) |  |  | (150,642) |  |  | 14,545 |  |  | (136,097) |
Amounts reclassified from AOCI (1) |  | (733,396) |  |  | 72,802 |  |  | — |  |  | (660,594) |  |  | (44,780) |  |  | (2,454) |  |  | (47,234) |  |  | (52,839) |  |  | — |  |  | (52,839) |
Net OCI during period (2) |  | (313,115) |  |  | 22,675 |  |  | (2,314) |  |  | (292,754) |  |  | (24,445) |  |  | (25,796) |  |  | (50,241) |  |  | (203,481) |  |  | 14,545 |  |  | (188,936) |
Balance at end of period |  | $ | 79,607 |  |  | $ | — |  |  | $ | (2,314) |  |  | $ | 77,293 |  |  | $ | 392,722 |  |  | $ | (22,675) |  |  | $ | 370,047 |  |  | $ | 417,167 |  |  | $ | 3,121 |  |  | $ | 420,288 |
(1) See separate table below for details about these reclassifications. (2) For further information regarding changes in OCI, see the Company’s consolidated statements of comprehensive income/(loss). (3) Net Unrealized Gain/(Loss) on Financing Agreements at Fair Value due to changes in instrument-specific credit risk.
Information about the significant amounts reclassified out of the entity's AOCI | The following table presents information about the significant amounts reclassified out of the Company’s AOCI for the years ended December 31, 2020, 2019, and 2018:
|  | For the Year Ended December 31, |  |
|  | 2020 |  | 2019 |  | 2018 |  |
Details about AOCI Components |  | Amounts Reclassified from AOCI |  | Affected Line Item in the Statement Where Net Income is Presented
(In Thousands) |  |  |  |  |  |  |  |
AFS Securities: |  |  |  |  |  |  |  |
Realized gain on sale of securities |  | $ | (389,127) |  |  | $ | (44,600) |  |  | $ | (51,580) |  |  | Net realized (loss)/gain on sales of residential mortgage securities and residential whole loans
Impairment recognized in earnings |  | (344,269) |  |  | (180) |  |  | (1,259) |  |  | Other, net
Total AFS Securities |  | $ | (733,396) |  |  | $ | (44,780) |  |  | $ | (52,839) |  |  |
Swaps designated as cash flow hedges: |  |  |  |  |  |  |  |
Reclassification adjustment for losses related to hedging instruments included in net income |  | 72,802 |  |  | (2,454) |  |  | — |  |  | Other, net
Total Swaps designated as cash flow hedges |  | $ | 72,802 |  |  | $ | (2,454) |  |  | $ | — |  |  |
Total reclassifications for period |  | $ | (660,594) |  |  | $ | (47,234) |  |  | $ | (52,839) |  |  |

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