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VARIABLE INTEREST ENTITIES - Narrative (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 28, 2021 USD ($) | Mar. 31, 2025 USD ($) loan | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) loan | Jan. 11, 2019 USD ($)
Variable Interest Entity [Line Items] |  |  |  |  |
Loans held for investment ($182,370 and $551,955 related to consolidated VIEs, respectively) |  | $ 1,355,264 |  | $ 1,656,688 |
Credit risk, financial instrument, maximum exposure |  | 95,200 |  |  |
ACRE Commercial Mortgage 2021-FL4 Ltd. and ACRE Commercial Mortgage 2021-FL4 LLC | Preferred Stock |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Sale of common stock | $ 64,300 |  |  |  |
Wholly Owned Subsidiary To Parent Company | ACRE Commercial Mortgage 2021-FL4 Ltd. and ACRE Commercial Mortgage 2021-FL4 LLC | Preferred Stock |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Sale of common stock |  | 64,300 |  |  |
2019 FL3 CLO Securitization | Wells Fargo Facility | Notes payable |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Long-term debt |  |  |  |  | $ 504,100
2019 FL3 CLO Securitization | Wells Fargo Facility | Collateralized Loan Obligations |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Long-term debt |  |  |  |  | $ 52,900
Offered Notes | Holdco |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Principal amount of certificates retained by wholly owned subsidiary of the entity |  | 58,500 |  |  |
Offered Certificates | Parent Company |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Preferred equity fully funded amount |  | 52,900 |  |  |
Secured funding agreements | Parent Company |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Loans held for investment ($182,370 and $551,955 related to consolidated VIEs, respectively) |  | 111,400 |  |  |
Floating Rate Notes, Weighted Average Coupon Rate, LIBOR Plus 1.85% |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Number of properties collateralized for mortgage loan | loan |  |  |  | 12 |
Receivables related to repayments of outstanding principal |  |  |  | $ 365,200 |
Secured, Floating Rate Notes | ACRE Commercial Mortgage 2021-FL4 Ltd. and ACRE Commercial Mortgage 2021-FL4 LLC |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Aggregate principal amount | $ 603,000 |  |  |  |
Secured, Floating Rate Notes | Wholly Owned Subsidiary To Parent Company | ACRE Commercial Mortgage 2021-FL3 Ltd. and ACRE Commercial Mortgage 2021-FL3 LLC |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Repayments of debt |  | 303,900 | $ 31,200 |  |
Secured, Floating Rate Notes | Wholly Owned Subsidiary To Parent Company | ACRE Commercial Mortgage 2021-FL4 Ltd. and ACRE Commercial Mortgage 2021-FL4 LLC |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Repayments of debt |  | 135 | $ 97,100 |  |
Aggregate principal amount |  | 62,500 |  |  |
Collateral amount |  | $ 126,800 |  |  |
FL4 Mortgage Assets |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Number of properties collateralized for mortgage loan | loan |  | 4 |  | 4 |
Receivables related to repayments of outstanding principal |  | $ 182,400 |  | $ 186,800 |
Assumption of real estate owned |  | 57,500 |  |  |
Receivables related to repayments of outstanding principal on mortgage assets |  |  |  | $ 58,800 |
SOFR Plus 8.95% Due Dec 2025 | Residential/Condo | Senior Mortgage Loans | NY |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Loans held for investment ($182,370 and $551,955 related to consolidated VIEs, respectively) |  | $ 105,700 |  |  |

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