Parent Company Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash	$ 238,482	$ 938,371	$ 1,328,536
Investment in subsidiaries	944	1,121
Receivable from PennyMac Mortgage Investment Trust	30,206	29,262
Total assets	26,086,887	18,844,563	$ 16,822,584
LIABILITIES AND STOCKHOLDERS' EQUITY
Unsecured senior notes	3,164,032	2,519,651
Accounts payable and accrued expenses	354,414	449,896
Income taxes payable	1,131,000	1,042,886
Total liabilities	22,257,236	15,305,960
Total liabilities and stockholders' equity	26,086,887	18,844,563
PennyMac Financial Services, Inc. | Parent Company
ASSETS
Cash	2,994	8,639
Investment in subsidiaries	4,809,214	4,488,039
Due from subsidiaries	3,012,578	2,322,854
Total assets	7,824,786	6,819,532
LIABILITIES AND STOCKHOLDERS' EQUITY
Unsecured senior notes	3,164,032	2,519,651
Accounts payable and accrued expenses	34,274	29,636
Payables to subsidiaries		187
Income taxes payable	796,829	731,455
Total liabilities	3,995,135	3,280,929
Stockholders' equity	3,829,651	3,538,603
Total liabilities and stockholders' equity	$ 7,824,786	$ 6,819,532