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Securities, at Fair Value - Composition of Agency MBS Portfolio (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value | [1] | $ 863,289 | $ 746,090
$5.00% Coupon |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Coupon rate (in percent) |  | 5.00% | 5.00%
Current Face |  | $ 73,941 | $ 76,360
Weighted Average Purchase Price (in percent) |  | 100.20% | 100.20%
Weighted Average Market Price (in percent) |  | 96.90% | 99.10%
Fair Value |  | $ 71,671 | $ 75,650
Weighted Average Loan Age (Months) |  | 15 months | 9 months
CPR (in percent) |  | 7.50% | 2.40%
5.50% Coupon |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Coupon rate (in percent) |  | 5.50% | 5.50%
Current Face |  | $ 267,221 | $ 277,885
Weighted Average Purchase Price (in percent) |  | 100.40% | 100.40%
Weighted Average Market Price (in percent) |  | 98.90% | 100.70%
Fair Value |  | $ 264,251 | $ 279,851
Weighted Average Loan Age (Months) |  | 17 months | 11 months
CPR (in percent) |  | 8.60% | 5.20%
6.00% Coupon |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Coupon rate (in percent) |  | 6.00% | 6.00%
Current Face |  | $ 332,320 | $ 177,842
Weighted Average Purchase Price (in percent) |  | 100.10% | 100.00%
Weighted Average Market Price (in percent) |  | 100.60% | 101.70%
Fair Value |  | $ 334,221 | $ 180,841
Weighted Average Loan Age (Months) |  | 8 months | 7 months
CPR (in percent) |  | 10.60% | 4.20%
6.50% Coupon |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Coupon rate (in percent) |  | 6.50% | 6.50%
Current Face |  | $ 30,473 | $ 22,213
Weighted Average Purchase Price (in percent) |  | 100.40% | 100.10%
Weighted Average Market Price (in percent) |  | 102.30% | 102.70%
Fair Value |  | $ 31,170 | $ 22,802
Weighted Average Loan Age (Months) |  | 9 months | 4 months
CPR (in percent) |  | 11.30% | 1.40%
Agency MBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Current Face |  | $ 703,955 | $ 554,300
Weighted Average Purchase Price (in percent) |  | 100.30% | 100.30%
Weighted Average Market Price (in percent) |  | 99.60% | 100.90%
Fair Value |  | $ 701,313 | $ 559,144
Weighted Average Loan Age (Months) |  | 12 months | 9 months
CPR (in percent) |  | 9.60% | 4.30%
[1] | See Note 6 for information regarding the Company’s pledged assets.

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