v3.26.1
Net Interest Expense - Summary of Net Interest Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Interest income:    
Cash and short-term investments $ 4,976 $ 5,686
Mortgage-backed securities 56,249 58,234
Loans held for sale 39,563 33,235
Loans held for investment 133,759 33,679
Deposits securing CRT arrangements 8,892 11,675
Placement fees relating to custodial funds 31,448 32,029
Other 1,204 1,553
Interest income 276,091 176,091
Interest expense:    
Assets sold under agreements to repurchase 91,392 81,148
Mortgage loan participation purchase and sale agreements 31 152
Notes payable secured by credit risk transfer and mortgage servicing assets 41,260 55,255
Unsecured senior notes 20,274  
Asset-backed financings 120,540 28,715
Interest shortfall on repayments of loans serviced for Agency securitizations 4,430 1,429
Interest on loan impound deposits 1,696 1,454
Other 127 371
Interest expense, total 279,750 182,137
Net interest expense $ (3,659) (6,046)
Unsecured Senior Notes [Member]    
Interest expense:    
Unsecured senior notes   $ 13,613