Investments in Securities - Schedule of Available-for-sale Securities in an Unrealized Gain or Loss Position (Details) - Agency Securities - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Debt and Equity Securities, FV-NI [Line Items] | ||
| Principal Amount | $ 14,729,346 | $ 12,957,039 |
| Amortized Cost | 14,598,037 | 12,806,504 |
| Gross Unrealized Loss | (220,575) | (370,044) |
| Gross Unrealized Gain | 64,915 | 2,954 |
| Fair Value | $ 14,442,377 | $ 12,439,414 |
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- Definition Debt Securities, Trading, Accumulated Gross Unrealized Gain, Before Tax No definition available.
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- Definition Debt Securities, Trading, Accumulated Gross Unrealized Loss, Before Tax No definition available.
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- Definition Debt Securities, Trading, Principal Amount No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amortized cost of investments in debt securities classified as trading. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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