CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net gains on loans held for sale at fair value:
From non-affiliates	$ 266,366	$ 58,753
Net gains on loans held for sale at fair value	344,282	84,776
Loan origination fees from non-affiliates	53,591	21,687
Loan origination fees	57,571	23,930
Loan servicing fees
From non-affiliates and affiliates	198,653	166,790
Other	28,755	22,017
Loan servicing fees	241,929	199,377
Amortization, impairment and change in fair value of mortgage servicing rights and mortgage servicing liabilities	1,357	(122,857)
Change in fair value of excess servicing spread payable to PennyMac Mortgage Investment Trust	15,879	(118,806)
Net loan servicing fees	257,808	80,571
Interest income:
From non-affiliates	71,346	56,537
Interest income	72,564	58,333
Interest expense:
To non-affiliates	59,538	34,477
Interest expense	61,512	37,543
Net interest income	11,052	20,790
Management fees, net:
Management fees	9,055	7,248
Result of real estate acquired in settlement of loans	(707)	274
Other	1,681	2,350
Total net revenue	721,825	247,705
Expenses
Compensation	168,436	106,600
Loan origination	46,004	14,497
Servicing	42,166	30,293
Technology	19,107	15,966
Professional services	13,404	5,881
Occupancy and equipment	8,038	6,776
Other	9,940	7,401
Total expenses	307,095	187,414
Income before provision for income taxes	414,730	60,291
Provision for income taxes	108,487	14,156
Net income attributable to PennyMac Financial Services, Inc. common stockholders	$ 306,243	$ 46,135
Earnings per share
Basic (in dollars per share)	$ 3.89	$ 0.59
Diluted (in dollars per share)	$ 3.73	$ 0.58
Weighted-average shares outstanding
Basic (in shares)	78,689	77,653
Diluted (in shares)	82,008	79,286
Dividend declared per share (in dollars per share)	$ 0.12
PMT
Net gains on loans held for sale at fair value:
From PennyMac Mortgage Investment Trust	$ 77,916	$ 26,023
Loan origination fees from PennyMac Mortgage Investment Trust	3,980	2,243
Fulfillment fees from PennyMac Mortgage Investment Trust	41,940	27,574
Loan servicing fees
From non-affiliates and affiliates	14,521	10,570
Changes in fair value included in income	14,522	4,051
Interest income:
From PennyMac Mortgage Investment Trust	1,218	1,796
Interest expense:
To PennyMac Mortgage Investment Trust	1,974	3,066
Management fees, net:
Management fees	9,055	7,248
Change in fair value of investment in and dividends received from affiliate	$ (857)	$ 192