v3.25.2
Net Interest Expense - Summary of Net Interest Expense (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Interest income:        
Cash and short-term investments $ 5,575 $ 7,085 $ 11,261 $ 15,277
Mortgage-backed securities 54,761 58,418 112,995 118,189
Loans acquired for sale 35,917 14,958 69,152 26,904
Loans held for investment 50,694 13,457 84,373 25,573
Deposits securing CRT arrangements 11,401 15,383 23,076 31,079
Placement fees relating to custodial funds 37,736 41,530 69,765 76,970
Other 397 1,004 1,950 1,402
Interest income 196,481 151,835 372,572 295,394
Interest expense:        
Assets sold under agreements to repurchase 84,336 77,364 165,484 157,921
Mortgage loan participation purchase and sale agreements 168 219 320 465
Notes payable secured by credit risk transfer and mortgage servicing assets 53,804 67,466 109,059 132,455
Asset-backed financings 46,449 11,402 75,164 24,080
Interest shortfall on repayments of loans serviced for Agency securitizations 2,455 1,805 3,884 3,098
Interest on loan impound deposits 1,460 1,652 2,914 2,999
Other 490 304 861 1,037
Interest expense, total 205,149 171,841 387,286 343,368
Net interest income (expense) (8,668) (20,006) (14,714) (47,974)
Unsecured Senior Notes [Member]        
Interest expense:        
Total interest expense $ 15,987 $ 11,629 $ 29,600 $ 21,313