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Derivatives - Gain (loss) on Derivative Instruments , Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Derivative [Line Items] |  |  |  |
Gain on derivative instruments, net | $ 41,135 | $ 116,012 | $ 165,771 | $ 48,745
Put options on U.S. Treasury futures |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments | 0 | (1,211) | 0 | (5,468)
Interest rate swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments | (90) | 0 | (90) | 0
Short position | U.S. Treasury futures |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments | 64,210 | 171,219 | 204,021 | 64,846
Long position | TBA securities |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net | $ (22,985) | $ (53,996) | $ (38,160) | $ (10,633)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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- Definition Aggregate net gain and losses (whether realized or unrealized) on all derivative instruments held for trading purposes whether or not settled physically. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480463/815-10-45-9 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4F -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4F + Details
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- Definition Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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