CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash	$ 340,069	$ 532,716
Short-term investment at fair value	6,873	15,217
Loans held for sale at fair value (includes $9,135,577 and $11,457,678 pledged to creditors)	9,742,483	11,616,400
Derivative assets	333,695	711,238
Servicing advances, net (includes valuation allowance of $120,940 and $181,433; $232,107 and $413,484 pledged to creditors)	702,160	579,528
Mortgage servicing rights at fair value (includes $3,856,791 and $2,577,964 pledged to creditors)	3,878,078	2,581,174
Operating lease right-of-use assets	89,040	74,934
Loans eligible for repurchase	3,026,207	14,625,447
Other (includes $45,294 and $166,418 pledged to creditors)	616,616	692,169
Total assets	18,776,612	31,597,795
LIABILITIES
Assets sold under agreements to repurchase	7,292,735	9,654,797
Mortgage loans participation purchase and sale agreements	479,845	521,477
Obligations under capital lease	3,489	11,864
Notes payable secured by mortgage servicing assets	1,297,622	1,295,840
Unsecured senior notes	1,776,219	645,820
Derivative liabilities	22,606	42,638
Mortgage servicing liabilities at fair value	2,816	45,324
Accounts payable and accrued expenses	359,413	308,398
Operating lease liabilities	110,003	94,193
Income taxes payable	685,262	622,700
Liability for loans eligible for repurchase	3,026,207	14,625,447
Liability for losses under representations and warranties	43,521	32,688
Total liabilities	15,358,287	28,208,407
Commitments and contingencies - Note 16
STOCKHOLDERS' EQUITY
Additional paid-in capital	125,396	1,047,052
Retained earnings	3,292,923	2,342,329
Total stockholders' equity	3,418,325	3,389,388
Total liabilities and stockholders' equity	18,776,612	31,597,795
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock - authorized 200,000,000 shares of $0.0001 par value; issued and outstanding, 56,867,202 and 70,905,532 shares respectively	6	7
PennyMac Mortgage Investment Trust
ASSETS
Assets purchased from PennyMac Mortgage Investment Trust under agreements to resell pledged to creditors		80,862
Investment in PennyMac Mortgage Investment Trust at fair value	1,300	1,105
Receivable from PennyMac Investment Trust	40,091	87,005
LIABILITIES
Excess servicing spread financing payable to PennyMac Mortgage Investment Trust at fair value		131,750
Payable to PennyMac Mortgage Investment Trust	228,019	140,306
Private National Mortgage Acceptance Company [Member]
LIABILITIES
Payable to exchanged Private National Mortgage Acceptance Company, LLC unitholders under tax receivable agreement	$ 30,530	$ 35,165