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Repurchase Agreements and Warehouse Facilities - Schedule of Borrowings Under Financing Arrangements and Associated Assets Pledged as Collateral (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Outstanding Repurchase Agreements or Warehouse Facilities | $ 6,100,691 | $ 3,516,611
Carrying Value of Repurchase Agreements and Warehouse Facilities | 6,481,072 | 4,012,225
Fair Value of Collateral Pledged | $ 4,256,683 | $ 3,841,738
Weighted Average Months to Maturity | 41 days | 26 days
Single Family |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Fair Value of Collateral Pledged | $ 118,500 | $ 134,600
Residential Loans and Real Estate Owned |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Carrying Value of Repurchase Agreements and Warehouse Facilities | 217,612 | 428,399
Fair Value of Collateral Pledged | 252,900 |
Residential Loans Held for Sale |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Carrying Value of Repurchase Agreements and Warehouse Facilities | 97,290 | 0
Fair Value of Collateral Pledged | 102,800 |
Residential Loans |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Fair Value of Collateral Pledged |  | 524,600
Residential loans |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Maximum Aggregate Uncommitted Principal or Line Amount | 3,225,000 | 2,775,000
Outstanding Repurchase Agreements or Warehouse Facilities | 380,692 | 496,410
Net Deferred Finance Costs | (311) | (796)
Carrying Value of Repurchase Agreements and Warehouse Facilities | 380,381 | 495,614
Fair Value of Collateral Pledged | $ 474,220 | $ 659,183
Weighted Average Rate | 6.37% | 6.70%
Weighted Average Months to Maturity | 5 years 6 months 21 days | 9 years 7 months 20 days

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- Definition The total amount of repossession that is available under the repurchase agreement. + References No definition available. + Details
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- Definition Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(ii)(A)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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- Definition Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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- Definition Amount, including accrued interest, to be repaid to counterparty to repurchase agreement when carrying amount or market value if higher, of security or other asset sold under repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481444/860-30-45-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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