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REVERSE MORTGAGE LOANS HELD FOR INVESTMENT AND HMBS-RELATED BORROWINGS - Schedule of Gain on Reverse Mortgage Loans Held for Investment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Gain on new originations	$ 1,882	$ 0	$ 3,166	$ 0
Gain on tail securitizations	435	0	757	0
Net interest income	25	0	48	0
Change in fair value of reverse mortgage loans held for investment	(208)	2,306	1,393	2,306
Fair value gain recognized in earnings	2,134	2,306	5,364	2,306
Loan fees and other(4)	963	282	1,749	282
Total	$ 3,097	$ 2,588	$ 7,113	$ 2,588

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Fair Value, Gain on New Originations

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Fair Value, Net Interest Income

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Net fair value gains on reverse loans and related HMBS obligations include the contractual interest income earned on reverse loans, including those not yet securitized or no longer in securitization pools, net of interest expense on HMBS related obligations, and the change in fair value of these assets and liabilities. Included in the change in fair value are gains due to loan originations that include tails.

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Loan Fees and Other

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-30

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