CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Cash	$ 489,799	$ 340,069
Short-term investment at fair value	78,006	6,873
Loans held for sale at fair value (includes $5,015,645 and $9,135,577 pledged to creditors)	5,119,234	9,742,483
Derivative assets	225,071	333,695
Servicing advances, net (includes valuation allowance of $88,755 and $120,940; $230,395 and $232,107 pledged to creditors)	616,874	702,160
Mortgage servicing rights at fair value (includes $4,662,515 and $3,856,791 pledged to creditors)	4,707,039	3,878,078
Operating lease right-of-use assets	85,262	89,040
Investment in PennyMac Mortgage Investment Trust at fair value	1,267	1,300
Receivable from PennyMac Mortgage Investment Trust	27,722	40,091
Loans eligible for repurchase	2,721,574	3,026,207
Other (includes $43,803 and $45,294 pledged to creditors)	546,054	616,616
Total assets	14,617,902	18,776,612
LIABILITIES
Assets sold under agreements to repurchase	3,333,444	7,292,735
Mortgage loans participation purchase and sale agreements	494,396	479,845
Obligations under capital lease	1,396	3,489
Notes payable secured by mortgage servicing assets	1,298,067	1,297,622
Unsecured senior notes	1,777,132	1,776,219
Derivative liabilities	90,837	22,606
Mortgage servicing liabilities at fair value	2,564	2,816
Accounts payable and accrued expenses	371,908	359,413
Operating lease liabilities	106,316	110,003
Payable to PennyMac Mortgage Investment Trust	159,468	228,019
Payable to exchanged Private National Mortgage Acceptance Company, LLC unitholders under tax receivable agreement	30,530	30,530
Income taxes payable	745,873	685,262
Liability for loans eligible for repurchase	2,721,574	3,026,207
Liability for losses under representations and warranties	42,794	43,521
Total liabilities	11,176,299	15,358,287
Commitments and contingencies - Note 16
STOCKHOLDERS' EQUITY
Additional paid-in capital		125,396
Retained earnings	3,441,597	3,292,923
Total stockholders' equity	3,441,603	3,418,325
Total liabilities and stockholders' equity	14,617,902	18,776,612
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock - authorized 200,000,000 shares of $0.0001 par value; issued and outstanding, 0 and 56,867,202 shares respectively	$ 6	$ 6