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Loans and Investments - Schedule of Loan Modifications (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | $ 949,830
Weighted average pay rate after modification | 4.27% | 4.52%
Deferred rate after modification | 2.59% | 3.38%
UPB of loan modifications made during the current year | $ 479,300 |
Financing receivable, modified in period, percentage of total investment portfolio | 4.00% | 8.00%
Financing receivable, specific reserve | $ 1,000 | $ 5,200
Weighted average pay rate before modification | 5.32% | 6.82%
Total UPB of modified loans that had been previously modified | $ 308,100 | $ 370,900
Deferred rate before modification | 2.29% | 1.09%
UPB of loan modifications made in prior year |  | $ 949,800
Payment Deferral, With Or Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | $ 849,365
Weighted average pay rate after modification | 4.62% | 5.18%
Deferred rate after modification | 2.80% | 2.56%
Contractual Interest Rate Reduction, With Or Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
Weighted average pay rate after modification | 5.26% |
Deferred rate after modification | 1.08% |
Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | $ 100,465
Extended Maturity, 23.5 Months |  |
Financing Receivable, Modified [Line Items] |  |
Financing receivable modified, weighted average term increase from modification | 23 months 15 days |
Payment Deferral And Pay Rate Increase From Time-To-Time |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | $ 65,100 | $ 470,300
Extended Maturity, 18.7 Months |  |
Financing Receivable, Modified [Line Items] |  |
Financing receivable modified, weighted average term increase from modification | 18 months 21 days | 19 months 18 days
Specific Reserve |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | $ 33,000 | $ 25,500
Multifamily |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | 478,800 | 933,340
Multifamily | Payment Deferral, With Or Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | 166,786 | 849,365
Multifamily | Contractual Interest Rate Reduction, With Or Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | 196,594 |
Multifamily | Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty | $ 115,420 | 83,975
Multifamily | Extended Maturity, 18.7 Months |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | 108,700
Single-Family Rental |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | 16,490
Single-Family Rental | Payment Deferral, With Or Without Term Extensions |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | 0
Single-Family Rental | Other |  |
Financing Receivable, Modified [Line Items] |  |
UPB of loan modifications, borrowers experiencing financial difficulty |  | $ 16,490

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