Quarterly report [Sections 13 or 15(d)]

Revolving Credit Facilities - Narrative (Details)

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Revolving Credit Facilities - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Line of Credit Facility [Line Items]        
Revolving credit facilities $ 933,171 $ 1,020,171    
Weighted average borrowing rate 7.45% 7.56%    
Weighted average remaining maturity 1 year 3 months 18 days 1 year 7 months 6 days    
Mortgage servicing rights, at fair value $ 2,959,773 $ 2,994,271 $ 3,084,879 $ 3,052,016
Servicing advances 111,000 141,600    
Asset Pledged as Collateral        
Line of Credit Facility [Line Items]        
Mortgage servicing rights, at fair value 3,000,000 3,000,000    
Line of Credit | Asset Pledged as Collateral        
Line of Credit Facility [Line Items]        
Mortgage servicing rights, at fair value 1,600,000 1,600,000    
Servicing advances $ 112,900 $ 118,700