Fair Value Measurements - Rollforward of Loans held for investment and held for sale and Securitized Debt Measured at Estimated Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Loans Held For Investment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	$ 1,649,540	$ 450,732	$ 1,306,072	$ 276,095
Originations	422,226	258,646	800,896	456,534
Loans liquidated	(77,798)	(13,464)	(139,550)	(21,485)
Acquisition	3,399		14,990
Principal paydowns	(7,732)	(1,764)	(13,801)	(2,796)
Total unrealized (loss) gain included in net income	17,285	3,108	36,757	9,767
Loans transfer (to held for sale) from held for investment	(34,059)		(31,578)	(20,857)
REO Transfer	(1,296)		(2,221)
Loans repurchased	118	8,072	118	8,072
Ending balance	1,971,683	705,330	1,971,683	705,330
Loans Held For Sale
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance		18,080	17,590
Originations				19,088
Loans liquidated	(33,895)	(17,385)	(48,429)	(39,945)
Principal paydowns	(2)		(31)
Total unrealized (loss) gain included in net income	(162)	$ (695)	(708)
Loans transfer (to held for sale) from held for investment	$ 34,059		$ 31,578	$ 20,857

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.

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Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).

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Amount of sales of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfers of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) into (out of) level 3 of the fair value hierarchy.

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