Debt Instrument, Covenant, Change in Share Price, Percent

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- Definition

Securities Sold under Agreements to Repurchase, Margin

+ References

No definition available.

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- Definition

Average rate paid on securities sold under agreements to repurchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1402
-Paragraph b
-Subparagraph (3)
-Publisher SEC

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

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-SubTopic 10
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-Subparagraph (a)
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-Subparagraph (SX 210.5-02(22)(b))
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-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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-Subparagraph (b)
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- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount at risk under repurchase agreements is defined as the excess of carrying amount (or market value, if higher than the carrying amount or if there is no carrying amount) of the securities or other assets sold under agreement to repurchase, including accrued interest plus any cash or other assets on deposit to secure the repurchase obligation, over the amount of the repurchase liability (adjusted for accrued interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (SX 210.4-08(m)(1)(iii))
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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

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- Definition

Weighted average maturity (weighted by amount of the agreement) of repurchase agreements with the counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

+ References

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- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Amount of right to receive cash collateral under master netting arrangements that have not been offset against securities sold under agreement to repurchase.

+ References

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- Definition

Fair value of securities pledged as collateral against securities sold under agreement to repurchase.

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Secured Financing Agreements - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Repurchase Agreement Counterparty [Line Items]
Secured Financing Agreements, Unpaid Principal/Notional	$ 3,228,748		$ 3,228,748		$ 2,432,115
Margin cash collateral pledged to repurchase agreement counterparties	$ 13,449		$ 13,449		$ 22,930
Securities sold under agreements to repurchase, haircut	7.50%		7.50%		7.50%
Decrease in share price (as a percent)			50.00%
Weighted average maturity			3 years
Securities sold under agreements to repurchase, weighted average borrowing rate			5.10%		5.10%
Gains (losses) on extinguishment of debt	$ 0	$ 0	$ 0	$ 6,348
Nomura
Repurchase Agreement Counterparty [Line Items]
Amount at risk	495,000		495,000		$ 433,000
Warehouse Agreement Borrowings
Repurchase Agreement Counterparty [Line Items]
Unused warehouse credit facilities	1,900,000		$ 1,900,000
Repurchase Agreements \| Nomura \| Stockholders' Equity, Total \| Credit Concentration Risk \| Asset Pledged as Collateral
Repurchase Agreement Counterparty [Line Items]
Concentration risk (as a percent)			18.00%		17.00%
Weighted average maturity			172 days		412 days
Minimum \| Warehouse Agreement Borrowings
Repurchase Agreement Counterparty [Line Items]
Maturity dates of credit facility			3 months
Maximum \| Warehouse Agreement Borrowings
Repurchase Agreement Counterparty [Line Items]
Maturity dates of credit facility			1 year
Not Subject to Additional Margin Requirements Upon Change in Fair Value of Collateral Pledged
Repurchase Agreement Counterparty [Line Items]
Secured Financing Agreements, Unpaid Principal/Notional	869,000		$ 869,000		$ 924,000
Not Subject to Additional Margin Requirements Until Drop in Fair Value of Collateral
Repurchase Agreement Counterparty [Line Items]
Secured Financing Agreements, Unpaid Principal/Notional	$ 519,000		$ 519,000		$ 546,000
Agency RMBS - Interest-only
Repurchase Agreement Counterparty [Line Items]
Securities sold under agreements to repurchase, haircut	5.40%		5.40%
Agency CMBS - Project loans
Repurchase Agreement Counterparty [Line Items]
Securities sold under agreements to repurchase, haircut	5.60%		5.60%		5.20%
Non-agency MBS and Loans held for investment
Repurchase Agreement Counterparty [Line Items]
Securities sold under agreements to repurchase, haircut	26.20%		26.20%		26.10%
Secured Financing Agreements, at fair value
Repurchase Agreement Counterparty [Line Items]
Secured Financing Agreements, Unpaid Principal/Notional	$ 345,107		$ 345,107		$ 362,215
Fair value of pledged collateral	399,000		399,000		401,000
Secured financing agreements	338,782		338,782		350,238
Gains (losses) on extinguishment of debt	$ 0		$ 0		$ (2,000)