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LOANS - Investment Loan Activity (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2023 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward] |  |
Beginning balance January 1, 2023 | $ 1,809,832 | [1],[2]
Ending balance June 30, 2023 | 1,154,320 | [2]
Transfer of residential loans to securitization vehicles, carrying value, noncash | 2,500,000 |
Residential |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward] |  |
Beginning balance January 1, 2023 | 1,809,832 |
Purchases / originations | 1,934,157 |
Sales and transfers | (2,544,578) |
Principal payments | (58,070) |
Gains / (losses) | 16,751 |
(Amortization) / accretion | (3,772) |
Ending balance June 30, 2023 | $ 1,154,320 |
[1] | (1)Derived from the audited consolidated financial statements at December 31, 2022.
[2] | (4)Includes $1.1 million and $1.3 million of residential mortgage loans held for sale at June 30, 2023 and December 31, 2022, respectively.

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- Definition Amount of decrease in 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, from collection of principal. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Footnote 6 -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(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
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- Definition Amount of increase in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, from new investment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
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