Quarterly report [Sections 13 or 15(d)]

Financing - Narrative (Details)

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Financing - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
May 13, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]          
Percent of equity of the amount at risk under repurchase agreements   10.00% 10.00%    
Revolving credit facilities   $ 916,871 $ 919,371    
Mortgage servicing rights, at fair value   2,380,983 2,421,910 $ 2,959,773 $ 2,994,271
Servicing advances   83,500 103,500    
Warehouse lines of credit   12,694 9,406    
Mortgage loans held-for-sale, at fair value   18,536 13,630    
Senior notes   111,200 111,055    
Convertible senior notes   0 261,810    
Asset Pledged as Collateral          
Debt Instrument [Line Items]          
Mortgage servicing rights, at fair value   $ 2,400,000 $ 2,400,000    
Revolving credit facility          
Debt Instrument [Line Items]          
Weighted average borrowing rate   6.68% 6.77%    
Weighted average remaining maturity   1 year 6 months 1 year 9 months 18 days    
Revolving credit facility | Asset Pledged as Collateral          
Debt Instrument [Line Items]          
Mortgage servicing rights, at fair value   $ 1,400,000 $ 1,500,000    
Servicing advances   $ 80,000 $ 100,100    
Warehouse Lines of Credit          
Debt Instrument [Line Items]          
Weighted average remaining maturities   90 days      
Weighted average remaining maturities   60 days      
Weighted average borrowing rate   5.67% 6.00%    
Weighted average remaining maturities   86 days 80 days    
Cash held in restricted accounts as collateral   $ 400 $ 400    
Warehouse Lines of Credit | Asset Pledged as Collateral          
Debt Instrument [Line Items]          
Mortgage loans held-for-sale, at fair value   12,800 9,600    
Senior Notes          
Debt Instrument [Line Items]          
Aggregate principal amount $ 115,000        
Secured financing interest rate per annum 9.375%        
Redemption price 100.00%        
Net proceeds $ 110,600        
Senior notes   $ 111,200 $ 111,100    
Senior Notes Overallotment Option          
Debt Instrument [Line Items]          
Aggregate principal amount $ 15,000        
Convertible Senior Notes          
Debt Instrument [Line Items]          
Secured financing interest rate per annum   6.25%