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Derivative Financial Instruments - Aggregate Fair Value and Notional Amount of Derivative Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Derivative [Line Items] |  |
Fair Value | $ (2,694) | $ (19,616)
Notional Amount | 2,235,635 | 2,628,677
TBAs |  |
Derivative [Line Items] |  |
Notional Amount |  | 1,790,000
Interest rate futures |  |
Derivative [Line Items] |  |
Notional Amount | 1,230,000 | 142,000
Derivative Liabilities |  |
Derivative [Line Items] |  |
Fair Value | (5,849) | (33,828)
Notional Amount | 1,169,175 | 1,977,483
Derivative Liabilities | TBAs |  |
Derivative [Line Items] |  |
Fair Value | (5) | (27,020)
Notional Amount | 7,000 | 1,405,000
Derivative Liabilities | Interest rate futures |  |
Derivative [Line Items] |  |
Fair Value | (2,422) | (3,394)
Notional Amount | 445,000 | 141,500
Derivative Liabilities | Loan purchase commitments |  |
Derivative [Line Items] |  |
Fair Value | (3,422) | (3,414)
Notional Amount | 717,175 | 430,983
Derivative Assets |  |
Derivative [Line Items] |  |
Fair Value | 3,155 | 14,212
Notional Amount | 1,066,460 | 651,194
Derivative Assets | Interest rate swaps |  |
Derivative [Line Items] |  |
Fair Value | 0 | 1,742
Notional Amount | 0 | 50,000
Derivative Assets | TBAs |  |
Derivative [Line Items] |  |
Fair Value | 0 | 952
Notional Amount | 0 | 385,000
Derivative Assets | Interest rate futures |  |
Derivative [Line Items] |  |
Fair Value | 1,840 | 0
Notional Amount | 782,000 | 0
Derivative Assets | Loan purchase commitments |  |
Derivative [Line Items] |  |
Fair Value | 1,315 | 11,518
Notional Amount | $ 284,460 | $ 216,194

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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
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