v3.26.1
Use of Special Purpose Entities and Variable Interest Entities - Narrative (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
entity
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Variable Interest Entity [Line Items]      
Number of SPE liquidated | entity 3    
Primary beneficiary, maximum loss exposure, amount $ 12,200    
Total residential whole loans 8,800,000   $ 8,800,000
Asset-backed Securities, Securitized Loans and Receivables      
Variable Interest Entity [Line Items]      
Proceeds from issuance of debt 10,088,396   10,061,131
Residential whole loans transferred to consolidated VIEs 7,400,000   7,600,000
Securitized debt 6,300,000   6,300,000
Asset-backed Securities, Securitized Loans and Receivables | Other Assets      
Variable Interest Entity [Line Items]      
Real estate owned at fair value 54,900   $ 52,400
Asset-backed Securities, Securitized Loans and Receivables | Senior Bonds      
Variable Interest Entity [Line Items]      
Proceeds from issuance of debt 710,900 $ 283,400  
Proceed from debt net of offering expenses and underwriting discount 710,200 $ 283,400  
Repayments of debt $ 470,100