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FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Schedule of Fair Values, Assets and Liabilities Measured on Recurring Basis | The following tables present the estimated fair values of financial instruments and MSR measured at fair value on a recurring basis. There were no transfers between levels of the fair value hierarchy during the periods presented.
December 31, 2022
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets | (dollars in thousands)
Securities |  |  |  |  |  |  |
Agency mortgage-backed securities | $ | — |  |  | $ | 62,274,895 |  |  | $ | — |  |  | $ | 62,274,895 |
Credit risk transfer securities | — |  |  | 997,557 |  |  | — |  |  | 997,557 |
Non-Agency mortgage-backed securities | — |  |  | 1,991,146 |  |  | — |  |  | 1,991,146 |
Commercial mortgage-backed securities | — |  |  | 526,309 |  |  | — |  |  | 526,309 |
Loans |  |  |  |  |  |  |
Residential mortgage loans | — |  |  | 1,809,832 |  |  | — |  |  | 1,809,832 |
Mortgage servicing rights | — |  |  | — |  |  | 1,748,209 |  |  | 1,748,209 |
Assets transferred or pledged to securitization vehicles | — |  |  | 9,121,912 |  |  | — |  |  | 9,121,912 |
Derivative assets |  |  |  |  |  |  |
Interest rate swaps | — |  |  | 33,006 |  |  | — |  |  | 33,006 |
Other derivatives | 33,179 |  |  | 275,879 |  |  | — |  |  | 309,058 |
Total assets | $ | 33,179 |  |  | $ | 77,030,536 |  |  | $ | 1,748,209 |  |  | $ | 78,811,924 |
Liabilities |  |  |  |  |  |  |
Debt issued by securitization vehicles | $ | — |  |  | $ | 7,744,160 |  |  | $ | — |  |  | $ | 7,744,160 |
Participations issued | — |  |  | 800,849 |  |  | — |  |  | 800,849 |
Derivative liabilities |  |  |  |  |  |  |
Interest rate swaps | — |  |  | 108,724 |  |  | — |  |  | 108,724 |
Other derivatives | 11,919 |  |  | 83,529 |  |  | — |  |  | 95,448 |
Total liabilities | $ | 11,919 |  |  | $ | 8,737,262 |  |  | $ | — |  |  | $ | 8,749,181 |
December 31, 2021
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets | (dollars in thousands)
Securities |  |  |  |  |  |  |
Agency mortgage-backed securities | $ | — |  |  | $ | 60,525,605 |  |  | $ | — |  |  | $ | 60,525,605 |
Credit risk transfer securities | — |  |  | 936,228 |  |  | — |  |  | 936,228 |
Non-Agency mortgage-backed securities | — |  |  | 1,663,336 |  |  | — |  |  | 1,663,336 |
Commercial mortgage-backed securities | — |  |  | 530,505 |  |  | — |  |  | 530,505 |
Loans |  |  |  |  |  |  |
Residential mortgage loans | — |  |  | 2,272,072 |  |  | — |  |  | 2,272,072 |
Residential mortgage loan warehouse facility | — |  |  | 980 |  |  | — |  |  | 980 |
Mortgage servicing rights | — |  |  | — |  |  | 544,562 |  |  | 544,562 |
Interests in MSR | — |  |  | — |  |  | 69,316 |  |  | 69,316 |
Assets transferred or pledged to securitization vehicles | — |  |  | 6,086,308 |  |  | — |  |  | 6,086,308 |
Derivative assets |  |  |  |  |  |  |
Other derivatives | 9,028 |  |  | 161,342 |  |  | — |  |  | 170,370 |
Total assets | $ | 9,028 |  |  | $ | 72,176,376 |  |  | $ | 613,878 |  |  | $ | 72,799,282 |
Liabilities |  |  |  |  |  |  |
Debt issued by securitization vehicles | $ | — |  |  | $ | 5,155,633 |  |  | $ | — |  |  | $ | 5,155,633 |
Participations issued | — |  |  | 1,049,066 |  |  | — |  |  | 1,049,066 |
Derivative liabilities |  |  |  |  |  |  |
Interest rate swaps | — |  |  | 747,036 |  |  | — |  |  | 747,036 |
Other derivatives | 129,134 |  |  | 5,367 |  |  | — |  |  | 134,501 |
Total liabilities | $ | 129,134 |  |  | $ | 6,957,102 |  |  | $ | — |  |  | $ | 7,086,236 |
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Level 3 MSRs | The table below presents information about the significant unobservable inputs used for recurring fair value measurements for Level 3 MSR and Interests in MSR. The table does not give effect to the Company’s risk management practices that might offset risks inherent in these Level 3 investments.
| December 31, 2022
| Unobservable Input (1) / Range (Weighted Average) (2)
| Discount rate |  | Prepayment rate |  | Delinquency rate |  | Cost to service
MSR held directly | 8.4% - 10.7% (9.7%) |  | 4.8% - 8.1% (5.4%) |  | 0.2% - 4.5% (1.3%) |  | $86 - $118 ($95)
| December 31, 2021
| Unobservable Input (1) / Range (Weighted Average) (2)
| Discount rate |  | Prepayment rate |  | Delinquency rate |  | Cost to service
MSR held directly | 3.3% - 11.1% (7.0%) |  | 7.3% - 15.9% (9.4%) |  | 0.2% - 2.5% (1.2%) |  | $90 - $103 ($96)
Interests in MSR | 8.4% - 8.4% (8.4%) |  | 5.0% - 14.4% (9.1%) |  | 0.0% - 0.2% (0.1%) |  | $78 - $84 ($81)
(1) Represents rates, estimates and assumptions that the Company believes would be used by market participants when valuing these assets. (2) Weighted average discount rate computed based on the fair value of MSR, weighted average prepayment rate, delinquency rate and cost to service based on unpaid principal balances of loans underlying the MSR.
Schedule of Estimated Fair Value for All Financial Assets and Liabilities | The following table summarizes the estimated fair values for financial assets and liabilities that are not carried at fair value at December 31, 2022 and 2021.
|  |  | December 31, 2022 |  | December 31, 2021
|  |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Financial assets |  |  | (dollars in thousands)
Loans |  |  |  |  |  |  |  |  |
Corporate debt, held for investment |  |  | $— |  | $— |  | $1,968,991 |  | $1,986,379
Financial liabilities |  |  |  |  |  |  |  |  |
Repurchase agreements |  |  | $59,512,597 |  | $59,512,597 |  | $54,769,643 |  | $54,769,643
Other secured financing |  |  | 250,000 |  | 250,000 |  | 903,255 |  | 903,255

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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