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Loans and Investments - Schedule of Loan Modifications (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 4,118,117 |
Deferred interest | 29,170 |
UPB of loan modifications made during 2024 | $ 3,970,000 |
Financing receivable, modified in period, percentage of total investment portfolio | 35.00% |
Financing receivable, specific reserve | $ 44,300 |
UPB of loan modifications made during 2023 | 351,800 |
Payment Deferrals With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 2,386,145 |
Weighted average pay rate | 5.99% |
Deferred rate | 2.06% |
Financing receivable modified, weighted average term increase from modification | 14 months 12 days |
Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 984,372 |
Financing receivable modified, weighted average term increase from modification | 11 months 21 days |
Rate Reductions With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 173,109 |
Financing receivable modified, weighted average term increase from modification | 23 months 18 days |
Weighted average interest rate reduction | 0.62% |
Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 574,491 |
Pay Rate Increase From Time-To-Time |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 379,000 |
Specific Reserve |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 413,400 |
Payment Deferrals With Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
Weighted average pay rate | 5.92% |
Deferred rate | 2.16% |
Financing receivable modified, weighted average term increase from modification | 14 months 18 days |
Financing receivable, modified in period, percentage of total investment portfolio | 3.00% |
Multifamily |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 4,005,560 |
Deferred interest | 28,600 |
Multifamily | Payment Deferrals With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 2,312,067 |
Multifamily | Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 984,372 |
Multifamily | Rate Reductions With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 134,630 |
Multifamily | Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 574,491 |
Multifamily | Payment Deferrals With Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
Deferred interest | 9,945 | $ 2,300
UPB of loan modifications, borrowers experiencing financial difficulty during 2023 | 398,461 |
Single-Family Rental |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 112,557 |
Deferred interest | 570 |
Single-Family Rental | Payment Deferrals With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 74,078 |
Single-Family Rental | Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 0 |
Single-Family Rental | Rate Reductions With/Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | 38,479 |
Single-Family Rental | Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty during 2024 | $ 0 |

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