RESIDENTIAL MORTGAGE LOANS - Schedule of Residential Mortgage Loans Outstanding by Loan Type (Details) $ in Thousands	6 Months Ended
Jun. 30, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Weighted Average Life (Years)	4 years
Investments of Consolidated CFEs
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 3,577,247
Carrying Value	$ 3,347,246	$ 3,038,587
Loan Count \| loan	10,411
Weighted Average Yield	5.50%
Weighted Average Life (Years)	25 years 10 months 24 days
Residential mortgage loans, HFI, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 421,507
Carrying Value	$ 368,866	379,044
Loan Count \| loan	7,823
Weighted Average Yield	8.50%
Weighted Average Life (Years)	5 years 2 months 12 days
Total residential mortgage loans, HFS
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 83,301
Carrying Value	$ 72,894	78,877
Loan Count \| loan	2,037
Weighted Average Yield	7.50%
Weighted Average Life (Years)	5 years 1 month 6 days
Acquired performing loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 61,427
Carrying Value	$ 53,951	57,038
Loan Count \| loan	1,790
Weighted Average Yield	8.00%
Weighted Average Life (Years)	5 years 6 months
Acquired performing loans \| Ginnie Mae
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unpaid principal balance of underlying loans	$ 217,200
Acquired non-performing loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	21,874
Carrying Value	$ 18,943	21,839
Loan Count \| loan	247
Weighted Average Yield	6.10%
Weighted Average Life (Years)	3 years 10 months 24 days
Acquired non-performing loans \| Ginnie Mae
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unpaid principal balance of underlying loans	$ 192,600
Total residential mortgage loans, HFS, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	3,807,723
Carrying Value	$ 3,837,929	2,461,865
Loan Count \| loan	14,043
Weighted Average Yield	6.70%
Weighted Average Life (Years)	24 years 9 months 18 days
Acquired performing loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 850,561
Carrying Value	$ 834,383	400,603
Loan Count \| loan	3,041
Weighted Average Yield	5.80%
Weighted Average Life (Years)	11 years 2 months 12 days
Acquired non-performing loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 233,580
Carrying Value	$ 214,071	204,950
Loan Count \| loan	1,130
Weighted Average Yield	3.70%
Weighted Average Life (Years)	23 years
Originated loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Outstanding Face Amount	$ 2,723,582
Carrying Value	$ 2,789,475	$ 1,856,312
Loan Count \| loan	9,872
Weighted Average Yield	7.20%
Weighted Average Life (Years)	29 years 2 months 12 days

Mortgage Loans On Real Estate, Carrying Amount Of Mortgages, Including Interest

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- Definition

The unpaid principal balance of underlying loans.

+ References

No definition available.

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Weighted average expected timing of the receipt of expected cash flows for this investment.

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The weighted average of the yield.

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No definition available.

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- Definition

Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Paragraph Column F
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column F))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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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
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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Number of mortgage loans within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Paragraph Column G
-Footnote 3
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Paragraph Column A
-Footnote 3
-Publisher SEC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column G)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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