Related Party Transactions - Investing Activities (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Activity during the period:
Change in fair value of investment in and dividends received from PennyMac Mortgage Investment Trust	$ (105)	$ (40)	$ 80	$ (30)
Fair value of PennyMac Mortgage Investment Trust shares	965		965		$ 944
Related Party | PennyMac Mortgage Investment Trust
Transactions with Affiliates
Common shares of beneficial interest owned	965		965		$ 944
Activity during the period:
Change in fair value of investment in and dividends received from PennyMac Mortgage Investment Trust	$ (105)	$ (40)	$ 80	$ (30)
Common shares of beneficial interest owned	75		75		75