v3.26.1
Residential Whole Loans - Interest Income Components (Details) - Residential whole loans - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income $ 143,091 $ 151,310
Non-QM loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 81,539 65,264
Business purpose loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 43,516 68,169
Business purpose loans | Single-family rental loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 19,513 22,397
Business purpose loans | Single-family transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 15,554 25,818
Business purpose loans | Multifamily transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 8,449 19,954
Legacy RPL/NPL loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 17,573 17,379
Other loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 463 498
Held at Carrying Value    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 16,169 20,742
Held at Carrying Value | Non-QM loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 8,185 10,086
Held at Carrying Value | Business purpose loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 1,575 3,614
Held at Carrying Value | Business purpose loans | Single-family rental loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 1,635 1,900
Held at Carrying Value | Business purpose loans | Single-family transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income   1,714
Interest income, reversals (60)  
Held at Carrying Value | Business purpose loans | Multifamily transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 0 0
Held at Carrying Value | Legacy RPL/NPL loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 6,409 7,042
Held at Carrying Value | Other loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 0 0
Held at Fair Value    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 126,922 130,568
Held at Fair Value | Non-QM loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 73,354 55,178
Held at Fair Value | Business purpose loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 41,941 64,555
Held at Fair Value | Business purpose loans | Single-family rental loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 17,878 20,497
Held at Fair Value | Business purpose loans | Single-family transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 15,614 24,104
Held at Fair Value | Business purpose loans | Multifamily transitional loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 8,449 19,954
Held at Fair Value | Legacy RPL/NPL loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income 11,164 10,337
Held at Fair Value | Other loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest income $ 463 $ 498