Related Party Transactions - Amounts due from Affiliate (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Amounts due from affiliate
Total due from affiliate	$ 30,604	$ 30,206
Payable to affiliate
Other Liabilities, Total	86,174	122,317
Related Party | PennyMac Mortgage Investment Trust
Amounts due from affiliate
Correspondent production fees	10,528	11,122
Servicing fees	7,213	6,822
Management fees	6,869	7,149
Allocated expenses and expenses incurred on PMT's behalf	5,994	3,508
Fulfillment fees		1,605
Payable to affiliate
Amounts advanced by PMT	71,280	106,302
Other expenses	14,894	16,015
Affiliated entities | PennyMac Mortgage Investment Trust
Amounts due from affiliate
Total due from affiliate	30,604	30,206
Payable to affiliate
Other Liabilities, Total	$ 86,174	$ 122,317