v3.26.1
Mortgage Servicing Rights and Mortgage Servicing Liabilities - Activity in MSRs at Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Change in fair value due to:        
Total change in fair value $ 204,507 $ 247,170 $ 376,500 $ 678,126
Mortgage servicing rights        
Activity in MSRs carried at fair value        
Balance at beginning of period 10,149,036 8,963,889 9,598,941 8,744,528
MSRs resulting from loan sales 648,681 814,538 1,368,267 1,464,887
Sale adjustments (sales) of MSRs Non-affiliates     6,428  
Sale adjustments (sales) of MSRs to PennyMac Mortgage Investment Trust (6,370)   (10,292)  
Additions 642,311 814,538 1,364,403 1,464,887
Change in fair value due to:        
Changes in inputs used in valuation model 118,281 15,950 301,328 (189,539)
Other changes in fair value (322,834) (263,128) (677,878) (488,627)
Total change in fair value (204,553) (247,178) (376,550) (678,166)
Balance at end of period 10,586,794 9,531,249 10,586,794 9,531,249
Unpaid principal balance of underlying loans at end of period 488,083,247 $ 463,132,127 488,083,247 $ 463,132,127
Asset Pledged as Collateral without Right | Mortgage servicing rights        
Activity in MSRs carried at fair value        
Balance at beginning of period     9,367,851  
Change in fair value due to:        
Balance at end of period $ 10,306,189   $ 10,306,189