v3.26.1
Transactions with Related Parties - Summary of Transfer Cash to Fund Loan Servicing Advances (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Servicing advances $ 79,200 $ 96,830
Other assets-Real estate acquired in settlement of loans 1,365 1,421
PennyMac Loan Services, LLC [Member]    
Related Party Transaction [Line Items]    
Servicing advances 79,200 96,830
Other assets-Real estate acquired in settlement of loans 681 655
Servicing advances and real estate acquired $ 79,881 $ 97,485