Transactions with Related Parties - Amounts due from Affiliate (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Amounts due from affiliate
Total due from affiliate	$ 30,206	$ 29,262
Payable to affiliate
Other Liabilities, Total	122,317	208,210
Related Party | PennyMac Mortgage Investment Trust
Amounts due from affiliate
Correspondent production fees	11,122	8,288
Management fees	7,149	7,252
Servicing fees	6,822	6,809
Allocated expenses and expenses incurred on PMT's behalf	3,508	5,612
Fulfillment fees	1,605	1,301
Payable to affiliate
Amounts advanced by PMT	106,302	208,154
Other expenses	16,015	56
Affiliated entities | PennyMac Mortgage Investment Trust
Amounts due from affiliate
Total due from affiliate	30,206	29,262
Payable to affiliate
Other Liabilities, Total	$ 122,317	$ 208,210