v3.26.3
Transactions with Related Parties - Summary of Transfer Cash to Fund Loan Servicing Advances (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Servicing advances $ 62,281 $ 96,830
Other assets-Real estate acquired in settlement of loans 2,013 1,421
PennyMac Loan Services, LLC [Member]    
Related Party Transaction [Line Items]    
Servicing advances 62,281 96,830
Other assets-Real estate acquired in settlement of loans 783 655
Servicing advances and real estate acquired $ 63,064 $ 97,485