v3.26.1
Related Party Transactions - Mortgage Loan Servicing (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 01, 2025
Sep. 30, 2025
Jan. 01, 2025
Sep. 12, 2016
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Summary of mortgage loan servicing fees earned                
Owned servicing         $ 515,293,000 $ 485,022,000 $ 1,026,453,000 $ 951,761,000
Loan Servicing Agreement                
Transactions with Affiliates                
Base servicing fees per month for REO       $ 75        
Base servicing fees per month for fixed-rate non-distressed loans subserviced $ 7 $ 7.5            
Base servicing fees per month for adjustable rate non-distressed loans subserviced $ 8 $ 8.5            
Minimum | Loan Servicing Agreement                
Transactions with Affiliates                
Servicing fees amount per month for severely delinquent loans     $ 18          
Maximum | Loan Servicing Agreement                
Transactions with Affiliates                
Servicing fees amount per month for severely delinquent loans     $ 80          
Related Party | Loans acquired for sale at fair value | PennyMac Mortgage Investment Trust                
Summary of mortgage loan servicing fees earned                
Base and supplemental         17,499,000 19,151,000 35,123,000 38,354,000
Activity-based         2,141,000 2,494,000 4,240,000 5,020,000
Owned servicing         $ 19,640,000 $ 21,645,000 $ 39,363,000 $ 43,374,000