CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
ASSETS
Cash	$ 1,558,679	$ 340,069
Short-term investment at fair value	36,098	6,873
Loans held for sale at fair value (includes $4,012,264 and $9,135,577 pledged to creditors)	4,149,726	9,742,483
Derivative assets	164,160	333,695
Servicing advances, net (includes valuation allowance of $63,713 and $120,940; $253,370 and $232,107 pledged to creditors)	455,083	702,160
Mortgage servicing rights at fair value (includes $5,604,447 and $3,856,791 pledged to creditors)	5,661,672	3,878,078
Operating lease right-of-use assets	72,138	89,040
Investment in PennyMac Mortgage Investment Trust at fair value	884	1,300
Receivable from PennyMac Mortgage Investment Trust	32,306	40,091
Loans eligible for repurchase	3,757,538	3,026,207
Other (includes $9,886 and $45,294 pledged to creditors)	473,527	616,616
Total assets	16,361,811	18,776,612
LIABILITIES
Assets sold under agreements to repurchase	3,487,335	7,292,735
Mortgage loans participation purchase and sale agreements	367,473	479,845
Notes payable secured by mortgage servicing assets	1,793,972	1,297,622
Unsecured senior notes	1,778,988	1,776,219
Obligations under capital lease		3,489
Derivative liabilities	125,487	22,606
Mortgage servicing liabilities at fair value	2,214	2,816
Accounts payable and accrued expenses	358,187	359,413
Operating lease liabilities	92,380	110,003
Payable to PennyMac Mortgage Investment Trust	87,978	228,019
Payable to exchanged Private National Mortgage Acceptance Company, LLC unitholders under tax receivable agreement	26,675	30,530
Income taxes payable	964,307	685,262
Liability for loans eligible for repurchase	3,757,538	3,026,207
Liability for losses under representations and warranties	37,187	43,521
Total liabilities	12,879,721	15,358,287
Commitments and contingencies - Note 16
STOCKHOLDERS' EQUITY
Additional paid-in capital		125,396
Retained earnings	3,482,085	3,292,923
Total stockholders' equity	3,482,090	3,418,325
Total liabilities and stockholders' equity	16,361,811	18,776,612
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock - authorized 200,000,000 shares of $0.0001 par value; issued and outstanding, 51,011,021 and 56,867,202 shares respectively	$ 5	$ 6