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Use of Special Purpose Entities (SPE) and Variable Interest Entities (VIE) - Schedule of Assets and Liabilities of Consolidated Real Estate VIE's (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cash and cash equivalents |  | $ 177,072 | $ 167,422 | $ 226,939 |
Assets of disposal group held for sale |  | 113,406 | 118,613 |  |
Other assets |  | 354,971 | 437,874 |  |
Total Assets | [1] | 10,004,055 | 9,217,282 |  |
Liabilities of disposal group held for sale |  | 91,153 | 97,065 |  |
Other liabilities |  | 172,757 | 147,612 |  |
Total Liabilities | [1] | 8,585,743 | 7,806,148 |  |
Non-controlling interest in Consolidated VIEs |  | 2,984 | 4,055 |  |
Consolidated SLST |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Carrying Value |  | 2,429,141 | 2,135,680 |  |
Residential loan securitizations at amortized cost, net |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Carrying Value |  | 757,673 | 842,764 |  |
VIE, Primary Beneficiary |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Real estate, net held in Consolidated VIEs |  | 617,305 | 623,407 |  |
Total Assets |  | 4,222,979 | 3,988,584 |  |
Total Liabilities |  | 3,679,092 | 3,477,211 |  |
Redeemable non-controlling interest in Consolidated VIEs |  | 13,382 | 12,359 | $ 20,128 | $ 28,061
VIE, Primary Beneficiary | Financing And Other VIEs |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cash and cash equivalents |  | 3,929 | 4,151 |  |
Residential loans, at fair value |  | 3,467,706 | 3,209,472 |  |
Real estate, net held in Consolidated VIEs |  | 477,189 | 481,161 |  |
Assets of disposal group held for sale |  | 113,406 | 118,613 |  |
Other assets |  | 160,749 | 175,187 |  |
Total Assets |  | 4,222,979 | 3,988,584 |  |
Carrying Value |  | 3,186,814 | 2,978,444 |  |
Mortgages payable on real estate, net in Consolidated VIEs |  | 365,455 | 366,606 |  |
Liabilities of disposal group held for sale |  | 91,153 | 97,065 |  |
Other liabilities |  | 35,670 | 35,096 |  |
Total Liabilities |  | 3,679,092 | 3,477,211 |  |
Redeemable non-controlling interest in Consolidated VIEs |  | 13,382 | 12,359 |  |
Non-controlling interest in Consolidated VIEs |  | 2,859 | 3,930 |  |
Net investment |  | 527,646 | 495,084 |  |
VIE, Primary Beneficiary | Financing VIEs |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cash and cash equivalents |  | 0 | 0 |  |
Residential loans, at fair value |  | 2,508,456 | 2,243,800 |  |
Real estate, net held in Consolidated VIEs |  | 0 | 0 |  |
Assets of disposal group held for sale |  | 0 | 0 |  |
Other assets |  | 144,394 | 154,426 |  |
Total Assets |  | 2,652,850 | 2,398,226 |  |
Carrying Value |  | 2,381,541 | 2,166,853 |  |
Mortgages payable on real estate, net in Consolidated VIEs |  | 0 | 0 |  |
Liabilities of disposal group held for sale |  | 0 | 0 |  |
Other liabilities |  | 21,158 | 16,162 |  |
Total Liabilities |  | 2,402,699 | 2,183,015 |  |
Redeemable non-controlling interest in Consolidated VIEs |  | 0 | 0 |  |
Non-controlling interest in Consolidated VIEs |  | 0 | 0 |  |
Net investment |  | 250,151 | 215,211 |  |
VIE, Primary Beneficiary | Consolidated SLST |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cash and cash equivalents |  | 0 | 0 |  |
Residential loans, at fair value |  | 959,250 | 965,672 |  |
Real estate, net held in Consolidated VIEs |  | 0 | 0 |  |
Assets of disposal group held for sale |  | 0 | 0 |  |
Other assets |  | 3,932 | 4,065 |  |
Total Assets |  | 963,182 | 969,737 |  |
Carrying Value |  | 805,273 | 811,591 |  |
Mortgages payable on real estate, net in Consolidated VIEs |  | 0 | 0 |  |
Liabilities of disposal group held for sale |  | 0 | 0 |  |
Other liabilities |  | 8,543 | 8,313 |  |
Total Liabilities |  | 813,816 | 819,904 |  |
Redeemable non-controlling interest in Consolidated VIEs |  | 0 | 0 |  |
Non-controlling interest in Consolidated VIEs |  | 0 | 0 |  |
Net investment |  | 149,366 | 149,833 |  |
VIE, Primary Beneficiary | Consolidated Real Estate |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cash and cash equivalents |  | 3,929 | 4,151 |  |
Residential loans, at fair value |  | 0 | 0 |  |
Real estate, net held in Consolidated VIEs |  | 477,189 | 481,161 |  |
Assets of disposal group held for sale |  | 113,406 | 118,613 |  |
Other assets |  | 12,423 | 16,696 |  |
Total Assets |  | 606,947 | 620,621 |  |
Carrying Value |  | 0 | 0 |  |
Mortgages payable on real estate, net in Consolidated VIEs |  | 365,455 | 366,606 |  |
Liabilities of disposal group held for sale |  | 91,153 | 97,065 |  |
Other liabilities |  | 5,969 | 10,621 |  |
Total Liabilities |  | 462,577 | 474,292 |  |
Redeemable non-controlling interest in Consolidated VIEs |  | 13,382 | 12,359 |  |
Non-controlling interest in Consolidated VIEs |  | 2,859 | 3,930 |  |
Net investment |  | 128,129 | 130,040 |  |
VIE, Primary Beneficiary | Consolidated SLST |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Carrying Value |  | 2,429,141 | 842,764 |  |
VIE, Primary Beneficiary | Residential loan securitizations at amortized cost, net |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Carrying Value |  | $ 757,673 | $ 2,135,680 |  |
[1] | Our condensed consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs") as the Company is the primary beneficiary of these VIEs. As of March 31, 2025 and December 31, 2024, assets of consolidated VIEs totaled $4,222,979 and $3,988,584, respectively, and the liabilities of consolidated VIEs totaled $3,679,092 and $3,477,211, respectively. See Note 7 for further discussion.

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