PennyMac Mortgage Investment Trust (PMT) 10-Q 5 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 04, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Trading Symbol	PMT
Entity Registrant Name	PennyMac Mortgage Investment Trust
Entity Central Index Key	1,464,423
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		67,655,441

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
ASSETS
Cash	$ 95,705	$ 58,108
Short-term investments	16,877	41,865
Mortgage-backed securities at fair value pledged to creditors	531,612	322,473
Mortgage loans acquired for sale at fair value (includes $1,441,956 and $1,268,455 pledged to creditors, respectively)	1,461,029	1,283,795
Mortgage loans at fair value	2,035,997	2,555,788
Excess servicing spread purchased from PennyMac Financial Services, Inc. at fair value pledged to secure note payable to PennyMac Financial Services, Inc.	294,551	412,425
Derivative assets	35,007	10,085
Real estate acquired in settlement of loans (includes $216,143 and $283,343 pledged to creditors, respectively)	299,458	341,846
Real estate held for investment	20,662	8,796
Mortgage servicing rights pledged to creditors (includes $57,977 and $66,584 carried at fair value, respectively)	471,458	459,741
Servicing advances	74,090	88,010
Deposits securing credit risk transfer agreements (includes $292,632 pledged to creditors at June 30, 2016)	338,812	147,000
Other	79,929	88,186
Total assets	5,767,562	5,826,924
LIABILITIES
Assets sold under agreements to repurchase	3,275,691	3,128,780
Mortgage loan participation and sale agreements	96,335	0
Federal Home Loan Bank advances	0	183,000
Notes payable	163,976	236,015
Asset-backed financing at fair value	325,939	247,690
Exchangeable senior notes	245,564	245,054
Interest-only security payable at fair value	1,663	0
Derivative liabilities	3,894	3,157
Accounts payable and accrued liabilities	75,587	64,474
Income taxes payable	26,774	33,505
Liability for losses under representations and warranties	19,258	20,171
Total liabilities	4,406,735	4,330,811
SHAREHOLDERS’ EQUITY
Common shares of beneficial interest—authorized, 500,000,000 common shares of $0.01 par value; issued and outstanding, 67,723,293 and 73,767,435 common shares	677	738
Additional paid-in capital	1,389,962	1,469,722
(Accumulated deficit) retained earnings	(29,812)	25,653
Total shareholders’ equity	1,360,827	1,496,113
Total liabilities and shareholders’ equity	5,767,562	5,826,924
Variable Interest Entities [Member]
ASSETS
Mortgage loans at fair value	427,091	455,394
Derivative assets	0	593
Deposits securing credit risk transfer agreements (includes $292,632 pledged to creditors at June 30, 2016)	338,812	147,000
Other assets - interest receivable	1,322	1,447
Total assets of Consolidated Variable Interest Entity	767,225	604,434
LIABILITIES
Asset-backed financing at fair value	325,939	247,690
Interest-only security payable at fair value	1,663	0
Derivative liabilities	199	0
Accounts payable and accrued liabilities—interest payable	925	724
SHAREHOLDERS’ EQUITY
Total liabilities of Consolidated Variable Interest Entity	328,726	248,414
PennyMac Financial Services, Inc. [Member]
ASSETS
Due from PennyMac Financial Services, Inc.	12,375	8,806
LIABILITIES
Notes payable	150,000	150,000
Due to PennyMac Financial Services, Inc.	$ 22,054	$ 18,965

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Mortgage loans acquired for sale at fair value, pledged to creditors	$ 1,441,956	$ 1,268,455
Mortgage loans at fair value, pledged to creditors	2,016,889	2,201,513
Mortgage servicing rights at fair value	57,977	$ 66,584
Deposits securing credit risk transfer agreements, pledged to creditors	$ 292,632
Common shares, authorized	500,000,000	500,000,000
Common shares, par value	$ 0.01	$ 0.01
Common shares, issued	67,723,293	73,767,435
Common shares, outstanding	67,723,293	73,767,435
Real Estate Acquired in Satisfaction of Debt [Member]
Real estate pledged to creditors	$ 216,143	$ 283,343

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net investment income
Interest income	$ 51,766	$ 45,333	$ 106,132	$ 86,018
Interest expense:
Interest expense	36,593	29,739	68,597	55,485
Net interest income	15,173	15,594	37,535	30,533
Net gain on mortgage loans acquired for sale	24,226	11,175	39,275	21,335
Mortgage loan origination fees	8,519	7,279	15,420	12,566
Net (loss) gain on investments	(15,487)	22,614	(19,385)	26,061
Net mortgage loan servicing fees	15,691	13,017	31,245	21,019
Results of real estate acquired in settlement of loans	(2,565)	(1,806)	(8,601)	(7,638)
Other	2,061	1,892	4,345	3,546
Net investment income	47,618	69,765	99,834	107,422
Expenses
Mortgage loan fulfillment fees	19,111	15,333	32,046	28,199
Mortgage loan servicing fees	16,427	12,136	27,880	22,806
Management fees	5,199	5,779	10,551	12,782
Mortgage loan collection and liquidation	4,290	3,182	6,504	4,627
Professional services	2,011	1,662	4,304	3,490
Compensation	2,224	1,389	3,513	4,198
Other	6,515	5,196	12,151	10,052
Total expenses	55,777	44,677	96,949	86,154
(Loss) income before benefit from income taxes	(8,159)	25,088	2,885	21,268
Benefit from income taxes	(2,892)	(2,983)	(6,344)	(14,311)
Net (loss) income	$ (5,267)	$ 28,071	$ 9,229	$ 35,579
(Loss) earnings per share
Basic	$ (0.08)	$ 0.37	$ 0.12	$ 0.46
Diluted	$ (0.08)	$ 0.36	$ 0.12	$ 0.46
Weighted-average shares outstanding
Basic	68,446	74,683	70,165	74,618
Diluted	68,446	83,480	70,165	74,997
Dividends declared per share	$ 0.47	$ 0.61	$ 0.94	$ 1.22
Nonaffiliates [Member]
Net investment income
Interest income	$ 46,053	$ 39,515	$ 93,404	$ 76,448
Interest expense:
Interest expense	34,371	29,206	64,773	54,952
Net (loss) gain on investments	337	14,025	14,066	23,719
PennyMac Financial Services, Inc. [Member]
Net investment income
Interest income	5,713	5,818	12,728	9,570
Interest expense:
Interest expense	2,222	533	3,824	533
Net (loss) gain on investments	$ (15,824)	$ 8,589	$ (33,451)	$ 2,342

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Shares [Member]	Additional Paid-in Capital [Member]	(Accumulated Deficit) Retained Earnings [Member]
Balance, Amount at Dec. 31, 2014	$ 1,578,172	$ 745	$ 1,479,699	$ 97,728
Balance, Shares at Dec. 31, 2014		74,510		0
Net income	35,579	$ 0	0	$ 35,579
Share-based compensation, Amount	3,685	$ 3	3,682	$ 0
Share-based compensation, Shares		302		0
Common share dividends	(92,147)	$ 0	0	$ (92,147)
Issuance of common shares, Amount	8	$ 0	8	$ 0
Issuance of common shares, Shares		0		0
Balance, Amount at Jun. 30, 2015	1,525,297	$ 748	1,483,389	$ 41,160
Balance, Shares at Jun. 30, 2015		74,812		0
Balance, Amount at Dec. 31, 2014	1,578,172	$ 745	1,479,699	$ 97,728
Balance, Shares at Dec. 31, 2014		74,510		0
Repurchase of common shares, Amount	(99,200)
Balance, Amount at Dec. 31, 2015	1,496,113	$ 738	1,469,722	$ 25,653
Balance, Shares at Dec. 31, 2015		73,767		0
Net income	9,229	$ 0	0	$ 9,229
Share-based compensation, Amount	3,013	$ 3	3,010	$ 0
Share-based compensation, Shares		298		0
Common share dividends	(64,694)	$ 0	0	$ (64,694)
Repurchase of common shares, Amount	(82,834)	$ (64)	(82,770)	$ 0
Repurchase of common shares, Shares		(6,342)		0
Balance, Amount at Jun. 30, 2016	$ 1,360,827	$ 677	$ 1,389,962	$ (29,812)
Balance, Shares at Jun. 30, 2016		67,723		0

Consolidated Statements of Cha6

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Common share dividends declared per share	$ 0.94	$ 1.22
(Accumulated Deficit) Retained Earnings [Member]
Common share dividends declared per share	$ 0.94	$ 1.22

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net income	$ 9,229	$ 35,579
Adjustments to reconcile net income to net cash used by operating activities:
Accrual of unearned discounts and amortization of premiums on mortgage-backed securities, mortgage loans at fair value, and asset-backed financing of a variable interest entity	(1,086)	(119)
Capitalization of interest on mortgage loans at fair value	(39,715)	(20,130)
Capitalization of interest on excess servicing spread	(12,728)	(9,570)
Amortization of debt issuance costs	6,472	5,401
Net gain on mortgage loans acquired for sale	(39,275)	(21,335)
Net loss (gain) on investments	19,385	(26,061)
Change in fair value, amortization and impairment of mortgage servicing rights	29,656	27,497
Results of real estate acquired in settlement of loans	8,601	7,638
Share-based compensation expense	3,013	3,685
Purchase of mortgage loans acquired for sale at fair value from nonaffiliates	(25,461,808)	(20,820,811)
Purchase of mortgage loans acquired for sale at fair value from PennyMac Financial Services, Inc.	(8,139)	(10,828)
Repurchase of mortgage loans subject to representation and warranties	(6,654)	(12,972)
Sale and repayment of mortgage loans acquired for sale at fair value to nonaffiliates	8,465,753	5,707,641
Sale of mortgage loans acquired for sale to PennyMac Financial Services, Inc.	16,790,189	13,523,345
Decrease (increase) in servicing advances	12,277	(8,870)
Increase in due from PennyMac Financial Services, Inc.	(2,688)	(2,541)
Decrease (increase) in other assets	39,774	(24,223)
Increase in accounts payable and accrued liabilities	14,084	8,440
Increase (decrease) in due to PennyMac Financial Services, Inc.	2,032	(7,469)
Decrease in income taxes payable	(6,731)	(14,710)
Net cash used in operating activities	(178,359)	(1,660,413)
Cash flows from investing activities
Net decrease in short-term investments	24,988	107,483
Purchase of mortgage-backed securities at fair value	(249,925)	(25,129)
Sale and repayment of mortgage-backed securities at fair value	49,141	39,744
Purchase of mortgage loans at fair value	0	(241,981)
Sale and repayment of mortgage loans at fair value	458,466	147,465
Purchase of excess servicing spread from PennyMac Financial Services, Inc.	0	(187,287)
Repayment of excess servicing spread by PennyMac Financial Services, Inc.	38,281	31,083
Sale of excess servicing spread to PennyMac Financial Services, Inc.	59,045	0
Net settlement of derivative financial instruments	(2,793)	(10,554)
Sale of real estate acquired in settlement of loans	135,573	128,097
Purchase of mortgage servicing rights	(2,602)	0
Sale of mortgage servicing rights	106	376
Deposit of cash securing credit risk transfer agreements	(192,737)	0
Distribution from credit risk transfer agreements	7,320	0
Increase in margin deposits and restricted cash	(16,769)	(36,003)
Purchase of Federal Home Loan Bank capital stock	(225)	0
Redemption of Federal Home Loan Bank capital stock	7,320	0
Net cash provided by (used in) investing activities	315,189	(46,706)
Cash flows from financing activities
Sale of assets under agreements to repurchase	27,426,511	22,834,050
Repurchase of assets sold under agreements to repurchase	(27,279,985)	(22,062,255)
Sale of mortgage loan participation certificates	3,166,373	2,440,045
Repayment of mortgage loan participation certificates	(3,070,038)	(2,389,653)
Issuance of credit risk transfer financing	0	649,120
Federal Home Loan Bank advances	28,000	138,400
Repayment of Federal Home Loan Bank advances	(211,000)	0
Issuance of asset-backed financing of a variable interest entity at fair value	99,499	0
Repayment of asset-backed financing of a variable interest entity at fair value	(30,479)	(11,331)
Payment of debt issuance costs	(5,512)	(5,176)
Issuance of common shares	0	8
Repurchase of common shares	(82,834)	0
Payment of contingent underwriting fees payable	0	(688)
Payment of dividends	(67,664)	(91,967)
Net cash (used in) provided by financing activities	(99,233)	1,745,431
Net increase in cash	37,597	38,312
Cash at beginning of period	58,108	76,386
Cash at end of period	95,705	114,698
Other Than Pennymac Financial Services Inc Note [Member]
Cash flows from financing activities
Advance under notes payable	69,282	192,352
Repayment under notes payable	(141,386)	0
PennyMac Financial Services, Inc. [Member]
Adjustments to reconcile net income to net cash used by operating activities:
Net loss (gain) on investments	33,451	(2,342)
Cash flows from investing activities
Purchase of excess servicing spread from PennyMac Financial Services, Inc.	0	(187,287)
Cash flows from financing activities
Advance under notes payable	0	71,072
Repayment under notes payable	$ 0	$ (18,546)

Organization and Basis of Prese

Organization and Basis of Presentation	6 Months Ended
	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Basis of Presentation	Note 1—Organization and Basis of Presentation PennyMac Mortgage Investment Trust (“PMT” or the “Company”) was organized in Maryland on May 18, 2009, and commenced operations on August 4, 2009, when it completed its initial offerings of common shares of beneficial interest (“common shares”). The Company is a specialty finance company, which, through its subsidiaries (all of which are wholly-owned), invests primarily in residential mortgage-related assets. The Company operates in two segments, correspondent production and investment activities: · The correspondent production segment represents the Company’s operations aimed at serving as an intermediary between mortgage lenders and the capital markets by purchasing, pooling and reselling newly originated prime credit quality mortgage loans either directly or in the form of mortgage-backed securities (“MBS”), using the services of PNMAC Capital Management, LLC (“PCM” or the “Manager”) and PennyMac Loan Services, LLC (“PLS”), both indirect controlled subsidiaries of PennyMac Financial Services, Inc. (“PFSI”). Most of the mortgage loans the Company has acquired in its correspondent production activities have been eligible for sale to government-sponsored entities such as the Federal National Mortgage Association (“Fannie Mae”) and the Federal Home Loan Mortgage Corporation (“Freddie Mac”) or through government agencies such as the Government National Mortgage Association (“Ginnie Mae”). Fannie Mae, Freddie Mac and Ginnie Mae are each referred to as an “Agency” and, collectively, as the “Agencies.” · The investment activities segment represents the Company’s investments in mortgage-related assets, which include MBS, distressed mortgage loans, excess servicing spread (“ESS”), credit risk transfer agreements (“CRT Agreements”), real estate acquired in settlement of loans (“REO”), real estate held for investment, mortgage servicing rights (“MSRs”), and small balance commercial real estate loans. The Company believes that it qualifies, and has elected to be taxed, as a real estate investment trust (“REIT”) under the Internal Revenue Code of 1986, as amended, beginning with its taxable period ended on December 31, 2009. To maintain its tax status as a REIT, the Company has to distribute at least 90% of its taxable income in the form of qualifying distributions to shareholders. The Company conducts substantially all of its operations and makes substantially all of its investments through its subsidiary, PennyMac Operating Partnership, L.P. (the “Operating Partnership”), and the Operating Partnership’s subsidiaries. A wholly-owned subsidiary of the Company is the sole general partner, and the Company is the sole limited partner, of the Operating Partnership. The accompanying consolidated financial statements have been prepared in compliance with accounting principles generally accepted in the United States (“GAAP”) as codified in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification The accompanying unaudited consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations that may be anticipated for the full year. Intercompany accounts and transactions have been eliminated. Preparation of financial statements in compliance with GAAP requires the Manager to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the reporting period. Actual results will likely differ from those estimates.

Concentration of Risks

Concentration of Risks	6 Months Ended
	Jun. 30, 2016
Risks And Uncertainties [Abstract]
Concentration of Risks	Note 2—Concentration of Risks As discussed in Note 1— Organization and Basis of Presentation Due to the nature of the Company’s investments, PMT is exposed, to a greater extent than traditional mortgage investors, to the risks that borrowers may be in economic distress and/or may have become unemployed, bankrupt or otherwise unable or unwilling to make payments when due, and to the effects of fluctuations in the residential real estate market on the performance of its investments. Factors influencing these risks include, but are not limited to: · changes in the overall economy, unemployment rates and residential real estate values in the markets where the properties securing the Company’s mortgage loans are located; · PCM’s ability to identify and PLS’ ability to execute optimal resolutions of certain mortgage loans; · the accuracy of valuation information obtained during the Company’s due diligence activities; · PCM’s ability to effectively model, and to develop appropriate model inputs that properly anticipate, future outcomes; · the level of government support for resolution of certain mortgage loans and the effect of current and future proposed and enacted legislative and regulatory changes on the Company’s ability to effect cures or resolutions to distressed mortgage loans; and · regulatory, judicial and legislative support of the foreclosure process, and the resulting effect on the Company’s ability to acquire and liquidate the real estate securing its portfolio of distressed mortgage loans in a timely manner or at all. Due to these uncertainties, there can be no assurance that risk management activities identified and executed on PMT’s behalf will prevent significant losses arising from the Company’s investments in real estate-related assets. A substantial portion of the distressed mortgage loans and REO purchased by the Company in prior years has been acquired from or through one or more subsidiaries of Citigroup Inc., as presented in the following summary: June 30, 2016 December 31, 2015 (in thousands) Mortgage loans at fair value $ 616,018 $ 855,691 REO 60,009 88,088 $ 676,027 $ 943,779 Total carrying value of mortgage loans at fair value and REO $ 2,335,455 $ 2,897,634

Transactions with Related Parti

Transactions with Related Parties	6 Months Ended
	Jun. 30, 2016
Related Party Transactions [Abstract]
Transactions with Related Parties	Note 3—Transactions with Related Parties Operating Activities Correspondent Production Activities Following is a summary of correspondent production activity between the Company and PLS: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Fulfillment fees earned by PLS $ 19,111 $ 15,333 $ 32,046 $ 28,199 Unpaid principal balance (“UPB”) of mortgage loans fulfilled by PLS $ 5,174,020 $ 3,579,078 $ 8,433,383 $ 6,469,210 Sourcing fees received from PLS included in Net gain on mortgage loans acquired for sale $ 2,824 $ 2,427 $ 4,773 $ 3,848 UPB of mortgage loans sold to PLS $ 9,409,399 $ 8,082,764 $ 15,905,121 $ 12,818,138 Purchases of mortgage loans acquired for sale at fair value from PLS $ 3,424 $ 2,423 $ 8,139 $ 10,828 Tax service fee paid to PLS included in Other $ 1,464 $ 1,113 $ 2,471 $ 2,002 Mortgage banking and warehouse services fees paid to PLS included in Mortgage loan servicing fees $ 1 $ — $ 2 $ — June 30, 2016 December 31, 2015 (in thousands) Mortgage loans included in Mortgage loans acquired for sale at fair value pending sale to PLS $ 619,008 $ 669,288 Mortgage Loan Servicing Activities Following is a summary of mortgage loan servicing fees earned by PLS and MSR recapture income earned from PLS: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Mortgage loan servicing fees: Mortgage loans acquired for sale at fair value: Base $ 79 $ 42 $ 135 $ 68 Activity-based 172 59 287 90 251 101 422 158 Mortgage loans at fair value: Distressed mortgage loans Base 2,908 4,183 6,267 8,215 Activity-based 8,518 3,093 11,967 5,987 11,426 7,276 18,234 14,202 Mortgage loans held in VIE: Base 51 27 92 57 Activity-based — — — — 51 27 92 57 MSRs: Base 4,583 4,627 8,927 8,253 Activity-based 116 105 205 136 4,699 4,732 9,132 8,389 $ 16,427 $ 12,136 $ 27,880 $ 22,806 MSR recapture income recognized included in Net mortgage loan servicing fees $ 311 $ — $ 440 $ — Average investment in: Mortgage loans acquired for sale at fair value $ 1,422,945 $ 1,014,883 $ 1,170,720 $ 887,660 Mortgage loans at fair value: Distressed mortgage loans $ 1,791,429 $ 2,295,807 $ 1,925,605 $ 2,303,080 Mortgage loans held in a VIE $ 437,542 $ 504,309 $ 446,013 $ 514,879 Average mortgage loan servicing portfolio $ 45,647,524 $ 35,742,835 $ 44,531,795 $ 35,215,677 Management Fees Following is a summary of the base management and performance incentive fees payable to PCM recorded by the Company: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Base management $ 5,199 $ 5,709 $ 10,551 $ 11,439 Performance incentive — 70 — 1,343 $ 5,199 $ 5,779 $ 10,551 $ 12,782 Expense Reimbursement and Amounts Payable to and Receivable from PFSI The Company reimburses PCM and its affiliates for other expenses, including common overhead expenses incurred on its behalf by PCM and its affiliates, in accordance with the terms of its management agreement as summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Reimbursement of: Common overhead incurred by PCM and its affiliates (1) $ 2,435 $ 2,702 $ 4,996 $ 5,431 Expenses (reimbursements) incurred on the Company’s behalf (169 ) 83 (114 ) 462 $ 2,266 $ 2,785 $ 4,882 $ 5,893 Payments and settlements during the year (2) $ 28,952 $ 24,114 $ 56,613 $ 46,866 (1) For the quarter ended June 30, 2015, in accordance with the terms of the Company’s management agreement, PCM provided the Company a discretionary waiver of $700,000 of overhead expenses that otherwise would have been allocable to the Company. On December 15, 2015, the Operating Partnership amended its management agreement to provide that the overhead costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four. (2) Payments and settlements include payments and netting settlements made pursuant to master netting agreements between the Company and PFSI for operating, investment and financing activities itemized in this Note. Amounts receivable and payable to PFSI are summarized below: June 30, 2016 December 31, 2015 (in thousands) Receivable from PFSI: MSR recapture receivable $ 605 $ 781 Other 11,770 8,025 $ 12,375 $ 8,806 Payable to PFSI: Servicing fees $ 9,154 $ 3,682 Management fees 5,200 5,670 Correspondent production fees 2,567 2,729 Interest on Note payable to PFSI 1,042 412 Conditional Reimbursement 900 900 Allocated expenses 847 390 Fulfillment fees 1,890 1,082 Expenses paid by PFSI on PMT’s behalf 454 4,100 $ 22,054 $ 18,965 Investing Activities On February 29, 2016, the Company and PLS terminated that certain master spread acquisition and MSR servicing agreement that the parties entered into effective February 1, 2013 (the “2/1/13 Spread Acquisition Agreement”) and all amendments thereto. In connection with the termination of the 2/1/13 Spread Acquisition Agreement, PLS reacquired from the Company all of its right, title and interest in and to all of the Fannie Mae ESS previously sold by PLS to the Company under the 2/1/13 Spread Acquisition Agreement and then subject to such 2/1/13 Spread Acquisition Agreement. On February 29, 2016, PLS also reacquired from the Company all of its right, title and interest in and to all of the Freddie Mac ESS previously sold to the Company by PLS. During the six months ended June 30, 2016, the amount of ESS sold by the Company to PLS under these reacquisitions was $59.0 million. Following is a summary of investing activities between the Company and PFSI: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) ESS: Purchases $ — $ 140,875 $ — $ 187,287 Received pursuant to a recapture agreement $ 1,690 $ 1,319 $ 3,601 $ 2,565 Repayments and sales $ 17,400 $ 18,352 $ 97,326 $ 31,083 Interest income $ 5,713 $ 5,818 $ 12,728 $ 9,570 Net loss included in Net (loss) gain on investments : Valuation changes $ (17,428 ) $ 7,133 $ (36,877 ) $ (403 ) Recapture income 1,604 1,456 3,426 2,745 $ (15,824 ) $ 8,589 $ (33,451 ) $ 2,342 Financing Activities PFSI held 75,000 of the Company’s common shares at both June 30, 2016 and December 31, 2015. Note Payable to PLS PLS is a party to a repurchase agreement between it and Credit Suisse First Boston Mortgage Capital LLC (“CSFB”) (the “MSR Repo”), pursuant to which PLS finances Ginnie Mae MSRs and servicing advance receivables and pledges to CSFB all of its rights and interests in any Ginnie Mae MSRs it owns or acquires, and a separate acknowledgement agreement with respect thereto, by and among Ginnie Mae, CSFB and PLS. In connection with the MSR Repo described above, the Company, through a wholly-owned subsidiary, entered into an underlying loan and security agreement with PLS, dated as of April 30, 2015, pursuant to which the Company may borrow up to $150 million from PLS for the purpose of financing its investment in ESS (the “Underlying LSA”). The principal amount of the borrowings under the Underlying LSA is based upon a percentage of the market value of the ESS pledged to PLS, subject to the $150 million sublimit described above. Pursuant to the Underlying LSA, the Company granted to PLS a security interest in all of its right, title and interest in, to and under the ESS pledged to secure the borrowings, and PLS, in turn, re-pledged such ESS to CSFB under the MSR Repo. The Company agreed with PLS in connection with the Underlying LSA that the Company is required to repay PLS the principal amount of borrowings plus accrued interest to the date of such repayment, and PLS, in turn, is required to repay CSFB the corresponding amount under the MSR Repo. Interest accrues on the Company’s note relating to the Underlying LSA at a rate based on CSFB’s cost of funds under the MSR Repo. The Company was also required to pay PLS a fee for the structuring of the Underlying LSA in an amount equal to the portion of the corresponding fee paid by PLS to CSFB under the MSR Repo and allocable to the $150 million relating to the ESS financing. As of June 30, 2016 and December 31, 2015, the outstanding borrowings on the Underlying LSA totaled $150 million. Conditional Reimbursement and Contingent Underwriting Fees In connection with its initial public offering of common shares on August 4, 2009 (“IPO”), the Company conditionally agreed to reimburse PCM up to $2.9 million for underwriting fees paid to the IPO underwriters by PCM on the Company’s behalf (the “Conditional Reimbursement”). Also in connection with its IPO, the Company agreed to pay the IPO underwriters up to $5.9 million in contingent underwriting fees. Following is a summary of financing activities between the Company and PFSI: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Note payable—Interest expense $ 2,222 $ 533 $ 3,824 $ 533 Conditional Reimbursements paid to PCM $ — $ 73 $ — $ 230

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Note 4—Earnings Per Share The Company grants restricted share units which entitle the recipients to receive dividend equivalents during the vesting period on a basis equivalent to the dividends paid to holders of common shares. Unvested share-based compensation awards containing non-forfeitable rights to receive dividends or dividend equivalents (collectively, “dividends”) are classified as “participating securities” and are included in the basic earnings per share calculation using the two-class method. Under the two-class method, all earnings (distributed and undistributed) are allocated to common shares and participating securities, based on their respective rights to receive dividends. Basic earnings per share is determined by dividing net income, reduced by income attributable to the participating securities, by the weighted-average common shares outstanding during the period. Diluted earnings per share is determined by dividing net income attributable to diluted shareholders, which adds back to net income the interest expense, net of applicable income taxes, on the Company’s exchangeable senior notes (the “Exchangeable Notes”), by the weighted-average common shares outstanding, assuming all potentially dilutive securities were issued. In periods in which the Company records a loss, potentially dilutive securities are excluded from the diluted loss per share calculation, as their effect on loss per share is anti-dilutive. The following table summarizes the basic and diluted earnings per share calculations: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands except per share amounts) Basic (loss) earnings per share: Net (loss) income $ (5,267 ) $ 28,071 $ 9,229 $ 35,579 Effect of participating securities—share-based compensation awards (307 ) (438 ) (718 ) (1,015 ) Net (loss) income attributable to common shareholders $ (5,574 ) $ 27,633 $ 8,511 $ 34,564 Diluted (loss) earnings per share: Net (loss) income attributable to common shareholders $ (5,574 ) $ 27,633 $ 8,511 $ 34,564 Effect of participating securities—share-based compensation awards — — — — Interest on Exchangeable Notes, net of income taxes — 2,121 — — Net (loss) income attributable to diluted shareholders $ (5,574 ) $ 29,754 $ 8,511 $ 34,564 Weighted-average basic shares outstanding 68,446 74,683 70,165 74,618 Potentially dilutive securities: Shares issuable under share-based compensation plan — 330 — — Shares issuable pursuant to exchange of the Exchangeable Notes — 8,467 — 379 Diluted weighted-average number of shares outstanding 68,446 83,480 70,165 74,997 Basic (loss) earnings per share $ (0.08 ) $ 0.37 $ 0.12 $ 0.46 Diluted (loss) earnings per share $ (0.08 ) $ 0.36 $ 0.12 $ 0.46 Dividends and undistributed earnings allocated to participating securities under the basic and diluted earnings per share calculations require specific shares to be included or excluded that may differ in certain circumstances. The following table summarizes the common shares excluded from the diluted earnings per share calculation for the periods as inclusion of such shares would have been antidilutive: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Shares issuable under share-based compensation awards 766 — 766 — Shares issuable pursuant to exchange of the Exchangeable Notes 8,467 — 8,467 8,467

Loan Sales and Variable Interes

Loan Sales and Variable Interest Entities	6 Months Ended
	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Loan Sales and Variable Interest Entities	Note 5—Loan Sales and Variable Interest Entities The Company is a variable interest holder in various special purpose entities that relate to its mortgage loan transfer and financing activities. These entities are classified as VIEs for accounting purposes. The Company has segregated its involvement with VIEs between those VIEs which the Company does not consolidate and those VIEs which the Company consolidates. Unconsolidated VIEs with Continuing Involvement The following table summarizes cash flows between the Company and transferees in transfers of mortgage loans that are accounted for as sales where the Company maintains continuing involvement with the mortgage loans, as well as UPB information at period end: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Cash flows: Proceeds from sales $ 5,231,974 $ 3,063,397 $ 8,465,753 $ 5,707,641 Mortgage loan servicing fees received (1) $ 29,179 $ 22,738 $ 56,755 $ 44,641 June 30, 2016 December 31, 2015 (in thousands) UPB of mortgage loans outstanding $ 47,087,431 $ 42,300,338 Delinquent mortgage loans: 30-89 days delinquent $ 192,175 $ 175,599 90 or more days delinquent: Not in foreclosure or bankruptcy 39,377 38,669 In foreclosure or bankruptcy 44,267 31,386 83,644 70,055 $ 275,819 $ 245,654 (1) Net of guarantee fees. Consolidated VIEs Credit Risk Transfer Agreements The Company, through its wholly-owned subsidiary, PennyMac Corp. (“PMC”), entered into CRT Agreements with Fannie Mae, pursuant to which PMC, through subsidiary trust entities, sells pools of mortgage loans into Fannie Mae-guaranteed securitizations while retaining a portion of the credit risk underlying such mortgage loans in exchange for a portion of the contractual guarantee fee normally charged by Fannie Mae. The mortgage loans subject to the CRT Agreements are transferred by PMC to subsidiary trust entities which sell the mortgage loans into Fannie Mae mortgage loan securitizations and issue the credit guarantees to Fannie Mae. Transfers of mortgage loans subject to CRT Agreements receive sale accounting treatment upon fulfillment of the criteria for sale recognition contained in the Transfers and Servicing The Manager has concluded that the Company’s subsidiary trust entities are VIEs and the Company is the primary beneficiary of the VIEs as it is the holder of the primary beneficial interests which absorb the variability of the trusts’ results of operations. Consolidation of the VIEs results in the inclusion on the Company’s consolidated balance sheet of the cash pledged to fulfill the guarantee obligation and a credit derivative comprised of the fair values of the credit guarantees and the Company’s right to the related guarantee fees. The pledged cash represents the Company’s maximum contractual exposure to claims under its credit guarantee, is the sole source of settlement of losses under the CRT Agreements and is included in Deposits securing credit risk transfer agreements Net (loss) gain on investments Following is a summary of the CRT Agreements: Quarter Ended June 30, 2016 Six Months Ended June 30, 2016 (in thousands) During the period: UPB of mortgage loans transferred and sold under CRT Agreements $ 3,162,746 $ 5,084,744 Deposits of cash securing CRT Agreements $ 126,031 $ 192,737 Gains (losses) recognized on CRT Agreements included in Net (loss) gain on investments Realized $ 3,859 $ 6,395 Resulting from valuation changes 3,905 (2,774 ) $ 7,764 $ 3,621 Payments made to settle losses $ — $ — June 30, 2016 December 31, 2015 (in thousands) UPB of mortgage loans subject to credit guarantee obligation $ 8,976,961 $ 4,546,265 Delinquency status (in UPB): Current—89 days delinquent $ 8,976,093 $ 4,546,265 90 or more days delinquent $ 868 $ — Carrying value of CRT Agreements: Net derivative included in Derivative assets $ — $ 593 Deposits securing credit risk transfer agreements $ 338,812 $ 147,000 Interest-only security payable at fair value $ 1,663 $ — Net derivative included in Derivative liabilities $ 199 $ — Jumbo Mortgage Loan Financing On September 30, 2013, the Company completed a securitization transaction in which PMT Loan Trust 2013-J1, a VIE, issued $537.0 million in UPB of certificates backed by fixed-rate prime jumbo mortgage loans, at a 3.9% weighted yield. The Company retained $366.8 million in fair value of such certificates. During the year ended December 31, 2015 and six months ended June 30, 2016, the Company sold an additional $111.0 million and $100.6 million in UPB of those certificates, respectively, which reduced the fair value of the certificates retained by the Company to $101.2 million as of June 30, 2016. The VIE is consolidated by the Company as the Manager determined that PMT is the primary beneficiary of the VIE as it had the power, through PLS, in its role as servicer of the mortgage loans, to direct the activities of the VIE that most significantly impact its economic performance and the retained subordinated and residual interest trust certificates expose the Company to losses that could potentially be significant to the VIE.

Netting of Financial Instrument

Netting of Financial Instruments	6 Months Ended
	Jun. 30, 2016
Offsetting [Abstract]
Netting of Financial Instruments	Note 6—Netting of Financial Instruments The Company uses derivative financial instruments to manage exposure to interest rate risk created by its MBS, interest rate lock commitments (“IRLCs”), mortgage loans acquired for sale at fair value, mortgage loans at fair value held in VIE, ESS and MSRs. All derivative financial instruments are recorded on the consolidated balance sheets at fair value. The Company has elected to net derivative asset and liability positions, and cash collateral obtained (or posted) from (or to) its counterparties when subject to a legally enforceable master netting arrangement. The derivative financial instruments that are not subject to master netting arrangements are IRLCs and the net derivatives related to CRT Agreements. As of June 30, 2016 and December 31, 2015, the Company did not enter into reverse repurchase agreements or securities lending transactions that are required to be disclosed in the following tables. Offsetting of Derivative Assets Following is a summary of net derivative assets. As discussed above, all derivatives with the exception of IRLCs and CRT Agreements are subject to master netting arrangements. June 30, 2016 December 31, 2015 Gross amounts of recognized assets Gross amounts offset in the consolidated balance sheet Net amounts of assets presented in the consolidated balance sheet Gross amounts of recognized assets Gross amounts offset in the consolidated balance sheet Net amounts of assets presented in the consolidated balance sheet (in thousands) Derivative assets Not subject to master netting arrangements: Interest rate lock commitments $ 16,803 $ — $ 16,803 $ 4,983 $ — $ 4,983 CRT Agreements — — — 593 — 593 16,803 — 16,803 5,576 — 5,576 Subject to master netting arrangements: MBS put options 593 — 593 93 — 93 Forward purchase contracts 35,768 — 35,768 2,444 — 2,444 Forward sale contracts 43 — 43 2,604 — 2,604 Put options on interest rate futures 453 — 453 1,512 — 1,512 Call options on interest rate futures 3,379 — 3,379 1,156 — 1,156 Netting — (22,032 ) (22,032 ) — (3,300 ) (3,300 ) 40,236 (22,032 ) 18,204 7,809 (3,300 ) 4,509 $ 57,039 $ (22,032 ) $ 35,007 $ 13,385 $ (3,300 ) $ 10,085 Derivative Assets and Collateral Held by Counterparty The following table summarizes by significant counterparty the amount of derivative asset positions after considering master netting arrangements and financial instruments or cash pledged that do not meet the accounting guidance qualifying for setoff accounting. June 30, 2016 December 31, 2015 Gross amounts not offset in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amount of assets presented in the consolidated balance sheet Financial instruments Cash collateral received Net amount Net amount of assets presented in the consolidated balance sheet Financial instruments Cash collateral received Net amount (in thousands) Interest rate lock commitments $ 16,803 $ — $ — $ 16,803 $ 4,983 $ — $ — $ 4,983 Fannie Mae Capital Markets 12,439 — — 12,439 — — — — Jefferies Group LLC 3,015 — — 3,015 541 — — 541 RJ O’Brien & Associates, LLC 867 — — 867 1,672 — — 1,672 Morgan Stanley Bank, N.A. 863 — — 863 464 — — 464 Royal Bank of Canada 397 — — 397 400 — — 400 Nomura Securities International, Inc. 274 — — 274 119 — — 119 Barclays Capital — — — — 796 — — 796 Ally Financial — — — — 209 — — 209 Other 349 — — 349 901 — — 901 $ 35,007 $ — $ — $ 35,007 $ 10,085 $ — $ — $ 10,085 Offsetting of Derivative Liabilities and Financial Liabilities Following is a summary of net derivative liabilities and assets sold under agreements to repurchase. As discussed above, all derivative liabilities with the exception of IRLCs and CRT Agreements are subject to master netting arrangements. Assets sold under agreements to repurchase do not qualify for setoff accounting. June 30, 2016 December 31, 2015 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheet Net amounts of liabilities presented in the consolidated balance sheet Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheet Net amounts of liabilities presented in the consolidated balance sheet (in thousands) Derivative liabilities Not subject to master netting arrangements: Interest rate lock commitments $ 45 $ — $ 45 $ 337 $ — $ 337 CRT Agreements 199 — 199 — — — 244 — 244 337 — 337 Subject to master netting arrangements: Forward purchase contracts 19 — 19 3,774 — 3,774 Forward sales contracts 35,466 — 35,466 2,680 — 2,680 Put options on interest rate futures 79 — 79 39 — 39 Call options on interest rate futures — — — 305 — 305 Netting — (31,914 ) (31,914 ) — (3,978 ) (3,978 ) 35,564 (31,914 ) 3,650 6,798 (3,978 ) 2,820 35,808 (31,914 ) 3,894 7,135 (3,978 ) 3,157 Assets sold under agreements to repurchase: UPB 3,276,854 — 3,276,854 3,130,328 — 3,130,328 Unamortized debt issuance costs (1,163 ) — (1,163 ) (1,548 ) — (1,548 ) 3,275,691 — 3,275,691 3,128,780 — 3,128,780 $ 3,311,499 $ (31,914 ) $ 3,279,585 $ 3,135,915 $ (3,978 ) $ 3,131,937 Derivative Liabilities, Financial Liabilities and Collateral Pledged by Counterparty The following table summarizes by significant counterparty the amount of derivative liabilities and assets sold under agreements to repurchase after considering master netting arrangements and financial instruments or cash pledged that do not meet the accounting guidance qualifying for setoff accounting. All assets sold under agreements to repurchase represent sufficient collateral or exceed the liability amount recorded on the consolidated balance sheet. June 30, 2016 December 31, 2015 Gross amounts not offset in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amount of liabilities presented in the consolidated balance sheet Financial instruments Cash collateral pledged Net amount Net amount of liabilities presented in the consolidated balance sheet Financial instruments Cash collateral pledged Net amount (in thousands) Interest rate lock commitments $ 45 $ — $ — $ 45 $ 337 $ — $ — $ 337 CRT Agreements 199 — — 199 — — — — Credit Suisse First Boston Mortgage Capital LLC 972,451 (972,003 ) — 448 893,947 (893,854 ) — 93 Bank of America, N.A. 677,186 (676,971 ) — 215 538,755 (538,515 ) — 240 Citibank 559,029 (558,346 ) — 683 817,089 (816,699 ) — 390 JPMorgan Chase & Co. 488,624 (488,624 ) — — 467,427 (467,145 ) — 282 Morgan Stanley Bank, N.A. 208,488 (208,488 ) — — 214,086 (214,086 ) — — Daiwa Capital Markets 207,908 (207,908 ) — — 165,480 (165,480 ) — — Wells Fargo, N.A. 66,458 (66,384 ) — 74 Barclays Capital 50,528 (50,528 ) — — 24,346 (24,346 ) — — BNP Paribas 47,602 (47,602 ) — — 10,203 (10,203 ) — — Bank of Oklahoma 646 — — 646 — — — — Raymond James and Associates 340 — — 340 — — — — Deutsche Bank 263 — — 263 — — — — Goldman Sachs 197 — — 197 819 — — 819 Fannie Mae Capital Markets — — — — 924 — — 924 Other 784 — — 784 72 — — 72 Unamortized debt issuance costs (1,163 ) 1,163 — — (1,548 ) 1,548 — — $ 3,279,585 $ (3,275,691 ) $ — $ 3,894 $ 3,131,937 $ (3,128,780 ) $ — $ 3,157

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value	Note 7—Fair Value The Company’s consolidated financial statements include assets and liabilities that are measured based on their fair values. Measurement at fair value may be on a recurring or nonrecurring basis depending on the accounting principles applicable to the specific asset or liability and whether the Manager has elected to carry the item at its fair value as discussed in the following paragraphs. The Company groups its assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the inputs used to determine fair value. These levels are: · Level 1—Quoted prices in active markets for identical financial statement items. · Level 2—Prices determined or determinable using other significant observable inputs. Observable inputs are inputs that other market participants would use in pricing a financial statement item and are developed based on market data obtained from sources independent of the Company. These may include quoted prices for similar financial statement items, interest rates, prepayment speeds, credit risk and other inputs. · Level 3—Prices determined using significant unobservable inputs. In situations where significant observable inputs are unavailable (for example, when there is little or no market activity for a financial statement item at the end of the period) unobservable inputs may be used. Unobservable inputs reflect the Company’s own judgments about the factors that market participants use in pricing a financial statement item, and are based on the best information available in the circumstances. As a result of the difficulty in observing certain significant valuation inputs affecting “Level 3” fair value financial statement items, the Manager is required to make judgments regarding these items’ fair values. Different persons in possession of the same facts may reasonably arrive at different conclusions as to the inputs to be applied in valuing these financial statement items and their fair values. Likewise, due to the general illiquidity of some of these financial statement items, subsequent transactions may be at values significantly different from those reported. Fair Value Accounting Elections The Manager identified all of the Company’s non-cash financial assets and MSRs relating to loans with initial interest rates of more than 4.5%, to be accounted for at fair value. The Manager has elected to account for these financial statement items at fair value so such changes in fair value will be reflected in income as they occur and more timely reflect the results of the Company’s performance. The Manager has also identified the Company’s CRT financing and asset-backed financing of a VIE to be accounted for at fair value to reflect the generally offsetting changes in fair value of these borrowings to changes in fair value of mortgage loans at fair value collateralizing these financings. For assets sold under agreements to repurchase and the Exchangeable Notes, the Manager has determined that historical cost accounting is more appropriate because under this method debt issuance costs are amortized over the term of the debt, thereby matching the debt issuance cost to the periods benefiting from the availability of the debt. Financial Statement Items Measured at Fair Value on a Recurring Basis Following is a summary of financial statement items that are measured at fair value on a recurring basis: June 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Assets: Short-term investments $ 16,877 $ — $ — $ 16,877 Mortgage-backed securities at fair value — 531,612 — 531,612 Mortgage loans acquired for sale at fair value — 1,461,029 — 1,461,029 Mortgage loans at fair value — 427,091 1,608,906 2,035,997 Excess servicing spread purchased from PFSI — — 294,551 294,551 Derivative assets: Interest rate lock commitments — — 16,803 16,803 MBS put options — 593 — 593 Forward purchase contracts — 35,768 — 35,768 Forward sales contracts — 43 — 43 Put options on interest rate futures 453 — — 453 Call options on interest rate futures 3,379 — — 3,379 Total derivative assets before netting 3,832 36,404 16,803 57,039 Netting — — — (22,032 ) Total derivative assets after netting 3,832 36,404 16,803 35,007 Mortgage servicing rights at fair value — — 57,977 57,977 $ 20,709 $ 2,456,136 $ 1,978,237 $ 4,433,050 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 325,939 $ — $ 325,939 Interest-only security payable at fair value — — 1,663 1,663 Derivative liabilities: Interest rate lock commitments — — 45 45 CRT Agreements — — 199 199 Put options on interest rate futures 79 — — 79 Forward purchase contracts — 19 — 19 Forward sales contracts — 35,466 — 35,466 Total derivative liabilities before netting 79 35,485 244 35,808 Netting — — — (31,914 ) Total derivative liabilities after netting 79 35,485 244 3,894 $ 79 $ 361,424 $ 1,907 $ 331,496 December 31, 2015 Level 1 Level 2 Level 3 Total (in thousands) Assets: Short-term investments $ 41,865 $ — $ — $ 41,865 Mortgage-backed securities at fair value — 322,473 — 322,473 Mortgage loans acquired for sale at fair value — 1,283,795 — 1,283,795 Mortgage loans at fair value — 455,394 2,100,394 2,555,788 Excess servicing spread purchased from PFSI — — 412,425 412,425 Derivative assets: Interest rate lock commitments — — 4,983 4,983 CRT Agreements — — 593 593 MBS put options — 93 — 93 Forward purchase contracts — 2,444 — 2,444 Forward sales contracts — 2,604 — 2,604 Put options on interest rate futures 1,512 — — 1,512 Call options on interest rate futures 1,156 — — 1,156 Total derivative assets 2,668 5,141 5,576 13,385 Netting — — — (3,300 ) Total derivative assets after netting 2,668 5,141 5,576 10,085 Mortgage servicing rights at fair value — — 66,584 66,584 $ 44,533 $ 2,066,803 $ 2,584,979 $ 4,693,015 Liabilities: Asset-backed financing of the VIE at fair value $ — $ 247,690 $ — $ 247,690 Derivative liabilities: Interest rate lock commitments — — 337 337 Put options on interest rate futures 39 — — 39 Call options on interest rate futures 305 — — 305 Forward purchase contracts — 3,774 — 3,774 Forward sales contracts — 2,680 — 2,680 Total derivative liabilities 344 6,454 337 7,135 Netting — — — (3,978 ) Total derivative liabilities after netting 344 6,454 337 3,157 $ 344 $ 254,144 $ 337 $ 250,847 The following is a summary of changes in items measured using Level 3 inputs on a recurring basis: Quarter ended June 30, 2016 Mortgage Excess Interest Mortgage Interest- only loans servicing rate lock CRT servicing security at fair value spread commitments (1) Agreements (1) rights payable Total (in thousands) Balance, March 31, 2016 $ 2,047,563 $ 321,976 $ 9,335 $ (4,218 ) $ 61,071 $ 675 $ 2,436,402 Purchases and issuances — — — — — 1,454 1,454 Repayments and sales (387,661 ) (17,400 ) — — — — (405,061 ) Capitalization of interest 16,421 5,713 — — — — 22,134 ESS received pursuant to a recapture agreement with PFSI — 1,690 — — — — 1,690 Interest rate lock commitments issued, net — — 17,036 — — — 17,036 Servicing received as proceeds from sales of mortgage loans — — — — 1,847 — 1,847 Proceeds from CRT Agreements — — — (3,859 ) — — (3,859 ) Changes in fair value included in income arising from: Changes in instrument- specific credit risk (22,287 ) — — — — — (22,287 ) Other factors 8,824 (17,428 ) 27,076 7,878 (4,941 ) (466 ) 20,943 (13,463 ) (17,428 ) 27,076 7,878 (4,941 ) (466 ) (1,344 ) Transfers of mortgage loans to REO and real estate held for investment (53,954 ) — — — — — (53,954 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (36,690 ) — — — (36,690 ) Balance, June 30, 2016 $ 1,608,906 $ 294,551 $ 16,757 $ (199 ) $ 57,977 $ 1,663 $ 1,979,655 Changes in fair value recognized during the period relating to assets still held at June 30, 2016 $ (5,335 ) $ (17,428 ) $ 16,757 $ 7,878 $ (4,941 ) (466 ) $ (3,535 ) (1) For the purpose of this table, the IRLC and CRT Agreement asset and liability positions are shown net. Quarter ended June 30, 2015 Mortgage Excess Interest Mortgage loans servicing rate lock servicing at fair value spread commitments (1) rights Total (in thousands) Balance, March 31, 2015 $ 2,343,382 $ 222,309 $ 8,214 $ 49,448 $ 2,623,353 Purchases — 140,874 — — 140,874 Repayments and sales (68,190 ) (18,352 ) — — (86,542 ) Capitalization of interest 9,922 — — — 9,922 Accrual of interest — 5,819 — — 5,819 ESS received pursuant to a recapture agreement with PFSI — 1,319 — — 1,319 Interest rate lock commitments issued, net — — 11,683 — 11,683 Servicing received as proceeds from sales of mortgage loans — — — 1,588 1,588 Changes in fair value included in income arising from: Changes in instrument-specific credit risk 7,489 — — — 7,489 Other factors 22,579 7,133 (23,411 ) 6,307 12,608 30,068 7,133 (23,411 ) 6,307 20,097 Transfers of mortgage loans to REO (68,238 ) — — — (68,238 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — 3,247 — 3,247 Balance, June 31, 2015 $ 2,246,944 $ 359,102 $ (267 ) $ 57,343 $ 2,663,122 Changes in fair value recognized during the period relating to assets still held at June 30, 2015 $ 32,807 $ 7,133 $ (267 ) $ 6,307 $ 45,980 (1) For the purpose of this table, the IRLC asset and liability positions are shown net. Six months ended June 30, 2016 Mortgage Excess Interest Mortgage Interest- only loans servicing rate lock CRT servicing security at fair value spread commitments (1) Agreements (1) rights payable Total (in thousands) Balance, December 31, 2015 $ 2,100,394 $ 412,425 $ 4,646 $ 593 $ 66,584 $ — $ 2,584,642 Purchases and issuances — — — 682 2,602 2,136 5,420 Repayments and sales (419,726 ) (97,326 ) — — — — (517,052 ) Capitalization of interest 39,715 12,728 — — — — 52,443 ESS received pursuant to a recapture agreement with PFSI — 3,601 — — — — 3,601 Interest rate lock commitments issued, net — — 27,733 — — — 27,733 Servicing received as proceeds from sales of mortgage loans — — — — 5,147 — 5,147 Proceeds from CRT Agreements — — — (6,395 ) — — (6,395 ) Changes in fair value included in income arising from: Changes in instrument- specific credit risk (19,004 ) — — — — — (19,004 ) Other factors 19,936 (36,877 ) 47,742 4,921 (16,356 ) (473 ) 18,893 932 (36,877 ) 47,742 4,921 (16,356 ) (473 ) (111 ) Transfers of mortgage loans to REO and real estate held for investment (112,409 ) — — — — — (112,409 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (63,364 ) — — — (63,364 ) Balance, June 30, 2016 $ 1,608,906 $ 294,551 $ 16,757 $ (199 ) $ 57,977 $ 1,663 $ 1,979,655 Changes in fair value recognized during the period relating to assets still held at June 30, 2016 $ 654 $ (29,667 ) $ 16,757 $ 4,921 $ (16,356 ) (473 ) $ (24,164 ) (1) For the purpose of this table, the IRLC and CRT Agreement asset and liability positions are shown net. Six months ended June 30, 2015 Mortgage Excess Interest Mortgage loans servicing rate lock servicing at fair value spread commitments (1) rights Total (in thousands) Balance, December 31, 2014 $ 2,199,583 $ 191,166 $ 5,661 $ 57,358 $ 2,453,768 Purchases 241,981 187,287 — — 429,268 Repayments and sales (114,070 ) (31,083 ) — — (145,153 ) Capitalization of interest 20,130 — — — 20,130 Accrual of interest — 9,570 — — 9,570 ESS received pursuant to a recapture agreement with PFSI — 2,565 — — 2,565 Interest rate lock commitments issued, net — — 31,083 — 31,083 Servicing received as proceeds from sales of mortgage loans — — — 3,495 3,495 Changes in fair value included in income arising from: Changes in instrument-specific credit risk 19,057 — — — 19,057 Other factors 28,196 (403 ) (23,399 ) (3,510 ) 884 47,253 (403 ) (23,399 ) (3,510 ) 19,941 Transfers of mortgage loans to REO (147,933 ) — — — (147,933 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (13,612 ) — (13,612 ) Balance, June 31, 2015 $ 2,246,944 $ 359,102 $ (267 ) $ 57,343 $ 2,663,122 Changes in fair value recognized during the period relating to assets still held at June 30, 2015 $ 54,574 $ (403 ) $ (267 ) $ (3,510 ) $ 50,394 (1) For the purpose of this table, the IRLC asset and liability positions are shown net. Following are the fair values and related principal amounts due upon maturity of mortgage loans accounted for under the fair value option (including mortgage loans acquired for sale, mortgage loans at fair value and mortgage loans held in a consolidated VIE): June 30, 2016 December 31, 2015 Fair value Principal amount due upon maturity Difference Fair value Principal amount due upon maturity Difference (in thousands) Mortgage loans acquired for sale at fair value: Current through 89 days delinquent $ 1,460,326 $ 1,388,201 $ 72,125 $ 1,283,275 $ 1,235,433 $ 47,842 90 or more days delinquent Not in foreclosure 415 461 (46 ) 304 333 (29 ) In foreclosure 288 338 (50 ) 216 253 (37 ) 703 799 (96 ) 520 586 (66 ) $ 1,461,029 $ 1,389,000 $ 72,029 $ 1,283,795 $ 1,236,019 $ 47,776 Mortgage loans at fair value: Mortgage loans held in a consolidated VIE Current through 89 days delinquent $ 427,091 $ 416,195 $ 10,896 $ 455,394 $ 454,935 $ 459 90 or more days delinquent Not in foreclosure — — — — — — In foreclosure — — — — — — — — — — — — 427,091 416,195 10,896 455,394 454,935 459 Other mortgage loans at fair value: Current through 89 days delinquent 656,762 873,422 (216,660 ) 877,438 1,134,560 (257,122 ) 90 or more days delinquent Not in foreclosure 363,328 510,475 (147,147 ) 459,060 640,343 (181,283 ) In foreclosure 588,816 803,754 (214,938 ) 763,896 1,062,205 (298,309 ) 952,144 1,314,229 (362,085 ) 1,222,956 1,702,548 (479,592 ) 1,608,906 2,187,651 (578,745 ) 2,100,394 2,837,108 (736,714 ) $ 2,035,997 $ 2,603,846 $ (567,849 ) $ 2,555,788 $ 3,292,043 $ (736,255 ) Following are the changes in fair value included in current period income by consolidated statement of operations line item for financial statement items accounted for under the fair value option: Quarter ended June 30, 2016 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (750 ) 4,332 — 3,582 Mortgage loans acquired for sale at fair value 47,003 — — — 47,003 Mortgage loans at fair value — 865 (13,511 ) — (12,646 ) ESS at fair value — — (17,428 ) — (17,428 ) MSRs at fair value — — — (4,941 ) (4,941 ) $ 47,003 $ 115 $ (26,607 ) $ (4,941 ) $ 15,570 Liabilities: Asset-backed financing of a VIE at fair value $ — $ (781 ) $ 890 $ — $ 109 $ — $ (781 ) $ 890 $ — $ 109 Quarter ended June 30, 2015 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (23 ) (6,702 ) — (6,725 ) Mortgage loans acquired for sale at fair value (5,017 ) — — — (5,017 ) Mortgage loans at fair value — (310 ) 17,991 — 17,681 ESS at fair value — — 8,589 — 8,589 MSRs at fair value — — — 6,306 6,306 $ (5,017 ) $ (333 ) $ 19,878 $ 6,306 $ 20,834 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 51 $ 3,991 $ — $ 4,042 $ — $ 51 $ 3,991 $ — $ 4,042 Six months ended June 30, 2016 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (738 ) 9,431 — 8,693 Mortgage loans acquired for sale at fair value 89,008 — — — 89,008 Mortgage loans at fair value — 2,094 9,279 — 11,373 ESS at fair value — — (36,877 ) — (36,877 ) MSRs at fair value — — — (16,356 ) (16,356 ) $ 89,008 $ 1,356 $ (18,167 ) $ (16,356 ) $ 55,841 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 536 $ (8,963 ) $ — $ (8,427 ) $ — $ 536 $ (8,963 ) $ — $ (8,427 ) Six months ended June 30, 2015 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — 63 (5,186 ) — (5,123 ) Mortgage loans acquired for sale at fair value 18,064 — — — 18,064 Mortgage loans at fair value — 179 36,977 — 37,156 ESS at fair value — — 2,342 — 2,342 MSRs at fair value — — — (3,510 ) (3,510 ) $ 18,064 $ 242 $ 34,133 $ (3,510 ) $ 48,929 Liabilities: Asset-backed financing of a VIE at fair value $ — $ (122 ) $ 3,222 $ — $ 3,100 $ — $ (122 ) $ 3,222 $ — $ 3,100 Financial Statement Items Measured at Fair Value on a Nonrecurring Basis Following is a summary of financial statement items that were re-measured at fair value on a nonrecurring basis during the periods presented: June 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Real estate acquired in settlement of loans $ — $ — $ 136,062 $ 136,062 MSRs at lower of amortized cost or fair value — — 332,354 332,354 $ — $ — $ 468,416 $ 468,416 December 31, 2015 Level 1 Level 2 Level 3 Total (in thousands) Real estate acquired in settlement of loans $ — $ — $ 173,662 $ 173,662 MSRs at lower of amortized cost or fair value — — 145,187 145,187 $ — $ — $ 318,849 $ 318,849 The following table summarizes the fair value changes recognized during the period on assets held at period end that were measured at fair value on a nonrecurring basis: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Real estate asset acquired in settlement of loans $ (5,836 ) $ (6,491 ) $ (11,106 ) $ (13,800 ) MSRs at lower of amortized cost or fair value (23,170 ) 7,082 (40,876 ) 703 $ (29,006 ) $ 591 $ (51,982 ) $ (13,097 ) Real Estate Acquired in Settlement of Loans The Company evaluates its REO for impairment with reference to the respective properties’ fair values less cost to sell on a nonrecurring basis. The initial carrying value of the REO is measured at cost as indicated by the purchase price in the case of purchased REO or as measured by the fair value of the mortgage loan immediately before REO acquisition in the case of acquisition in settlement of a loan. REO may be subsequently revalued due to the Company receiving greater access to the property, the property being held for an extended period or receiving indications that the property’s value may not be supported by developing market conditions. Any subsequent change in fair value to a level that is less than or equal to the property’s cost is recognized in Results of real estate acquired in settlement of loans Mortgage Servicing Rights at Lower of Amortized Cost or Fair Value The Company evaluates its MSRs at lower of amortized cost or fair value for impairment with reference to the asset’s fair value. For purposes of performing its MSR impairment evaluation, the Company stratifies its MSRs at lower of amortized cost or fair value based on the interest rates borne by the mortgage loans underlying the MSRs. Mortgage loans are grouped into pools with 50 basis point interest rate ranges for fixed-rate mortgage loans with interest rates between 3.0% and 4.5% and a single pool for mortgage loans with interest rates below 3.0%. MSRs relating to adjustable rate mortgage loans with initial interest rates of 4.5% or less are evaluated in a single pool. If the fair value of MSRs in any of the interest rate pools is below the amortized cost of the MSRs, those MSRs are impaired. When MSRs are impaired, the impairment is recognized in current-period results of operations and the carrying value of the MSRs is adjusted using a valuation allowance. If the fair value of the MSRs subsequently increases, the increase in fair value is recognized in current period results of operations only to the extent of the valuation allowance for the respective impairment stratum. The Manager periodically reviews the various impairment strata to determine whether the fair value of the impaired MSRs in a given stratum is likely to recover. When the Manager deems recovery of fair value to be unlikely in the foreseeable future, a write-down of the cost of the MSRs for that stratum to its estimated recoverable value is charged to the valuation allowance. Fair Value of Financial Instruments Carried at Amortized Cost The Company’s Cash The Manager has concluded that the fair values of Cash Assets sold under agreements to repurchase Mortgage loan participation and sale agreements Federal Home Loan Bank advances Notes payable Cash The Exchangeable Notes are carried at amortized cost. The fair value of the Exchangeable Notes at June 30, 2016 and December 31, 2015 was $236.1 million and $230.0 million, respectively. The fair value of the Exchangeable Notes is estimated using a broker indication of value. The Company has classified the Exchangeable Notes as “Level 3” fair value financial statement items as of June 30, 2016 due to the lack of current market activity. Valuation Techniques and Inputs Most of the Company’s assets, its Derivative liabilities Asset-backed financing of a VIE Interest-only security payable Due to the difficulty in estimating the fair values of “Level 3” fair value financial statement items, the Manager has assigned responsibility for estimating fair value of these items to specialized staff and subjects the valuation process to significant executive management oversight. The Manager’s Financial Analysis and Valuation group (the “FAV group”) is responsible for estimating the fair values of “Level 3” fair value financial statement items other than IRLCs and maintaining its valuation policies and procedures. With respect to the Company’s “Level 3” fair value financial statement items, the FAV group reports to PCM’s valuation committee, which oversees and approves the valuations. The FAV group monitors the models used for valuation of the Company’s non-IRLC “Level 3” fair value financial statement items, including the models’ performance versus actual results, and reports those results to PCM’s valuation committee. PCM’s valuation committee includes PFSI’s chief executive, financial, operating, risk, business development and asset/liability management officers. The FAV group is responsible for reporting to PCM’s valuation committee on a monthly basis on the changes in the valuation of the financial statement items, including major factors affecting the valuation and any changes in model methods and inputs. To assess the reasonableness of its valuations, the FAV group presents an analysis of the effect on the valuation of changes to the significant inputs to the models. The fair value of the Company’s IRLCs is developed by the Manager’s Capital Markets Risk Management staff and is reviewed by the Manager’s Capital Markets Operations group. The following is a description of the techniques and inputs used in estimating the fair values of “Level 2” and “Level 3” fair value financial statement items: Mortgage-Backed Securities The Company’s MBS include Agency and senior non-agency MBS. The Company categorizes its current holdings of MBS as “Level 2” fair value financial statement items. Fair value of these MBS is established based on quoted market prices for the Company’s MBS or similar securities. Changes in the fair value of MBS are included in Net (loss) gain on investments Mortgage Loans Fair value of mortgage loans is estimated based on whether the mortgage loans are saleable into active markets: · Mortgage loans that are saleable into active markets, comprised of the Company’s mortgage loans acquired for sale at fair value and mortgage loans at fair value held in a VIE, are categorized as “Level 2” fair value financial statement items. The fair values of mortgage loans acquired for sale at fair value are established using their quoted market or contracted price or market price equivalent. For the mortgage loans at fair value held in a VIE, the fair values of all of the individual securities issued by the securitization trust are used to derive a fair value for the mortgage loans. The Company obtains indications of fair value from nonaffiliated brokers based on comparable securities and validates the brokers’ indications of fair value using pricing models and inputs the Manager believes are similar to the models and inputs used by other market participants. · Mortgage loans that are not saleable into active markets, comprised of mortgage loans at fair value held outside the VIE are categorized as “Level 3” fair value financial statement items and their fair values are estimated using a discounted cash flow approach. Inputs to the discounted cash flow model include current interest rates, loan amount, payment status, property type, discount rates and forecasts of future interest rates, home prices, prepayment speeds, default speeds, loss severities and contracted selling price where applicable. The valuation process includes the computation by stratum of the mortgage loans’ fair values and a review for reasonableness of various measures such as weighted average life, projected prepayment and default speeds, and projected default and loss percentages. The FAV group computes the effect on the valuation of changes in inputs such as interest rates, home prices, and delinquency status to assess the reasonableness of changes in the mortgage loan valuation. Changes in fair value attributable to changes in instrument-specific credit risk are measured by the effect on fair value of the change in the respective mortgage loan’s delinquency status and performance history at period-end from the later of the beginning of the period or acquisition date. The significant unobservable inputs used in the fair value measurement of the Company’s mortgage loans at fair value are discount rate, home price projections, voluntary prepayment speeds and default speeds. Significant changes in any of those inputs in isolation could result in a significant change to the mortgage loans’ fair value measurement. Increases in home price projections are generally accompanied by an increase in voluntary prepayment speeds. Changes in the fair value of mortgage loans at fair value are included in Net (loss) gain on investments Following is a quantitative summary of key inputs used in the valuation of mortgage loans at fair value: Key inputs June 30, 2016 December 31, 2015 Discount rate Range 2.5% – 15.0% 2.5% – 15.0% Weighted average 6.7% 7.1% Twelve-month projected housing price index change Range 2.7% – 5.2% 1.5% – 5.1% Weighted average 4.0% 3.6% Prepayment speed (1) Range 0.1% – 13.7% 0.1% – 9.6% Weighted average 3.9% 3.7% Total prepayment speed (2) Range 0.7% – 25.4% 0.5% – 27.2% Weighted average 19.0% 19.6% (1) Prepayment speed is measured using Life Voluntary Conditional Prepayment Rate (“CPR”). (2) Total prepayment speed is measured using Life Total CPR. Excess Servicing Spread Purchased from PFSI The Company categorizes ESS as a “Level 3” fair value financial statement item. The Company uses a discounted cash flow approach to estimate the fair value of ESS. The key inputs used in the estimation of the fair value of ESS include prepayment speed and discount rate. Significant changes to those inputs in isolation may result in a significant change in the ESS fair value measurement. Changes in these key inputs are not necessarily directly related. ESS is generally subject to loss in fair value when interest rates decrease. Decreasing mortgage rates normally encourage increased mortgage refinancing activity. Increased refinancing activity reduces the life of the mortgage loans underlying the ESS, thereby reducing the cash flows expected to accrue to ESS. Reductions in the fair value of ESS affect results of operations primarily through change in fair value. Changes in the fair value of ESS are included in Net (loss) gain on investments Following are the key inputs used in determining the fair value of ESS: Key inputs June 30, 2016 December 31, 2015 UPB of underlying mortgage loans (in thousands) $ 36,151,940 $51,966,405 Average servicing fee rate (in basis points) 34 32 Average ESS rate (in basis points) 19 17 Pricing spread (1) Range 4.7% – 5.9% 4.8% - 6.5% Weighted average 5.5% 5.7% Life (in years) Range 1.6 - 8.9 1.4 - 9.0 Weighted average 6.2 6.9 Annual total prepayment speed (2) Range 6.8% – 37.3% 5.2% - 52.4% Weighted average 12.5% 9.6% (1) Pricing spread represents a margin that is applied to a reference interest rate’s forward rate curve to develop periodic discount rates. The Company applies a pricing spread to the United States Dollar London Interbank Offered Rate (“LIBOR”) curve for purposes of discounting cash flows relating to ESS. (2) Prepayment speed is measured using Life Total CPR. Derivative Financial Instruments Interest Rate Lock Commitments The Company categorizes IRLCs as a “Level 3” fair value financial statement item. The Company estimates the fair value of IRLCs based on quoted Agency MBS prices, its estimate of the fair value of the MSRs it expects to receive in the sale of the mortgage loans and the probability that the mortgage loan will be purchased under the commitment as a percentage of the commitments it has made (the “pull-through rate”). The significant unobservable inputs used in the fair value measurement of the Company’s IRLCs are the pull-through rate and the MSR component of the Company’s estimate of the fair value of the mortgage loans it has committed to purchase. Significant changes in the pull-through rate or the MSR component of the IRLCs, in isolation, may result in a significant change in fair value. The financial effects of changes in these inputs are generally inversely correlated as increasing interest rates have a positive effect on the fair value of the MSR component of IRLC value, but increase the pull-through rate for mortgage loan principal and interest payment cash flows that have decreased in fair value. Changes in fair value of IRLCs are included in Net gains on mortgage loans acquired for sale at fair value Following is a quantitative summary of key unobservable inputs used in the valuation of IRLCs: Key inputs June 30, 2016 December 31, 2015 Pull-through rate Range 74.9% – 100.0% 60.2% - 100.0% Weighted average 88.0% 92.4% MSR value expressed as: Servicing fee multiple Range 1.8 - 5.7 2.1 - 6.2 Weighted average 4.5 4.9 Percentage of UPB Range 0.0% – 1.4% 0.5% - 3.8% Weighted average 1.1% 1.2% Hedging Derivatives The Company estimates the fair value of commitments to sell mortgage loans based on quoted MBS prices. These derivative financial instruments are categorized by the Company as “Level 1” fair value financial statement items for those based on exchange traded market prices or as “Level 2” fair value financial statement items for those based on observable interest rate volatilities in the MBS market. Changes in the fair value of hedging derivatives are included in Net gains on mortgage loans acquired for sale at fair value Net (loss) gain on investments Net mortgage loan servicing fees Real Estate Acquired in Settlement of Loans REO is measured based on its fair value on a nonrecurring basis and is categorized as a “Level 3” fair value financial statement item. Fair value of REO is established by using a current estimate of fair value from a broker’s price opinion or a full appraisal, or the price given in a current contract of sale. REO fair values are reviewed by the Manager’s staff appraisers when the Company obtains multiple indications of fair value and there is a significant difference between the fair values received. PCM’s staff appraisers will attempt to resolve the difference between the indications of fair value. In circumstances where the appraisers are not able to generate adequate data to support a fair value conclusion, the staff appraisers will order an additional appraisal to determine the fair value. Changes in the fair value of REO are included in Results of real estate acquired in settlement of loans Mortgage Servicing Rights MSRs are categorized as “Level 3” fair value financial statement items. The Company uses a discounted cash flow approach to estimate the fair value of MSRs. The key inputs used in the estimation of the fair value of MSRs include the applicable pricing spread, prepayment and default rates of the underlying mortgage loans, and annual per-loan cost to service mortgage loans, all of which are unobservable. Significant changes to any of those inputs in isolation could result in a significant change in the MSR fair value measurement. Changes in these key inputs are not necessarily directly related. Changes in the fair value of MSRs are included in Net mortgage loan servicing fees MSRs are generally su

Mortgage Loans Acquired for Sal

Mortgage Loans Acquired for Sale at Fair Value	6 Months Ended
	Jun. 30, 2016
Mortgage Loans On Real Estate [Abstract]
Mortgage Loans Acquired for Sale at Fair Value	Note 8—Mortgage Loans Acquired for Sale at Fair Value Mortgage loans acquired for sale at fair value is comprised of recently originated mortgage loans purchased by the Company for resale. Following is a summary of the distribution of the Company’s mortgage loans acquired for sale at fair value: June 30, 2016 December 31, 2015 Loan type Fair value Unpaid principal balance Fair value Unpaid principal balance (in thousands) Conventional: Agency-eligible $ 816,248 $ 776,828 $ 540,947 $ 525,192 Jumbo 8,088 8,009 54,613 54,096 Held for sale to PLS — Government insured or guaranteed 619,008 585,919 669,288 637,666 Commercial real estate 12,132 12,263 14,590 14,461 Mortgage loans repurchased pursuant to representations and warranties 5,553 5,980 4,357 4,604 $ 1,461,029 $ 1,388,999 $ 1,283,795 $ 1,236,019 Mortgage loans pledged to secure: Assets sold under agreements to repurchase $ 1,341,459 $ 1,204,462 Mortgage loan participation and sale agreements $ 100,497 $ — Federal Home Loan Bank (“FHLB”) advances $ — $ 63,993 The Company is not approved by Ginnie Mae as an issuer of Ginnie Mae-guaranteed securities which are backed by government-insured or guaranteed mortgage loans. The Company transfers government-insured or guaranteed mortgage loans that it purchases from correspondent lenders to PLS, which is a Ginnie Mae-approved issuer, and earns a sourcing fee of three basis points on the UPB plus interest earned during the period it holds each such mortgage loan.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 9—Derivative Financial Instruments The Company enters into CRT Agreements whereby it retains a portion of the credit risk relating to mortgage loans it sells into Fannie Mae guaranteed securitizations in exchange for a portion of the contractual guarantee fee related to such securitizations. The fair values of the credit guarantees and the Company’s right to the related guarantee fee are accounted for as a derivative financial instrument. IRLCs are generated in the normal course of business when the Company commits to purchase mortgage loans acquired for sale. The Company’s remaining derivative financial instrument transactions are in support of its interest rate risk management activities. The Company engages in interest rate risk management activities in an effort to reduce the variability of earnings caused by changes in interest rates. To manage the price risk resulting from interest rate risk, the Company uses derivative financial instruments acquired with the intention of moderating the risk that changes in market interest rates will result in unfavorable changes in the fair value of the Company’s MBS, inventory of mortgage loans acquired for sale, mortgage loans held by VIE, ESS, IRLCs and MSRs. The Company records all derivative financial instruments at fair value and records changes in fair value in current period results of operations. The Company is exposed to price risk relative to the IRLCs it issues to correspondent lenders and to the mortgage loans it purchases as a result of issuing the IRLCs. The Company bears price risk from the time an IRLC is issued to a correspondent lender to the time the purchased mortgage loan is sold. The Company is exposed to loss if mortgage interest rates increase, because interest rate increases generally cause the fair value of the purchase commitment or mortgage loan acquired for sale to decrease. The Company had the following derivative assets and liabilities and related margin deposits recorded within Derivative assets Derivative liabilities June 30, 2016 December 31, 2015 Fair value Fair value Notional Derivative Derivative Notional Derivative Derivative Instrument amount assets liabilities amount assets liabilities (in thousands) Derivatives not designated as hedging instruments: Free-standing derivatives: Interest rate lock commitments 1,658,813 $ 16,803 $ 45 970,067 $ 4,983 $ 337 Used for hedging purposes: Forward sale contracts 4,347,526 43 35,466 2,450,642 2,604 2,680 Forward purchase contracts 4,190,349 35,768 19 2,469,550 2,444 3,774 MBS call options 1,525,000 593 — 375,000 93 — Swap futures 12,500 — — — — — Eurodollar future sales contracts 1,543,000 — — 1,755,000 — — Call options on interest rate futures 525,000 3,379 — 50,000 1,156 305 Put options on interest rate futures 425,000 453 79 1,600,000 1,512 39 CRT Agreements 8,976,961 — 199 4,546,265 593 — Total derivative instruments before netting 57,039 35,808 13,385 7,135 Netting (22,032 ) (31,914 ) (3,300 ) (3,978 ) $ 35,007 $ 3,894 $ 10,085 $ 3,157 Margin deposits with derivatives counterparties $ 9,882 $ 678 The following tables summarize the notional amount activity for derivatives arising from CRT Agreements and derivative contracts used to hedge the Company’s MBS, inventory of mortgage loans acquired for sale, mortgage loans at fair value held in a VIE, IRLCs and MSRs. Quarter ended June 30, 2016 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 3,466,697 21,138,542 (20,257,713 ) 4,347,526 Forward purchase contracts 2,981,134 15,361,702 (14,152,487 ) 4,190,349 MBS call options 425,000 1,975,000 (875,000 ) 1,525,000 Swap futures 12,500 12,500 (12,500 ) 12,500 Eurodollar future sale contracts 1,734,000 — (191,000 ) 1,543,000 Call options on interest rate futures 1,250,000 275,000 (1,000,000 ) 525,000 Put options on interest rate futures 1,525,000 550,000 (1,650,000 ) 425,000 CRT Agreements 5,931,409 3,162,746 (117,194 ) 8,976,961 Quarter ended June 30, 2015 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 2,958,492 14,047,534 (13,753,740 ) 3,252,286 Forward purchase contracts 2,132,616 9,885,504 (9,754,498 ) 2,263,622 MBS put option 190,000 587,500 (410,000 ) 367,500 MBS call option — 140,000 (100,000 ) 40,000 Eurodollar future sale contracts 6,355,000 185,000 (556,000 ) 5,984,000 Treasury future sale contracts 85,000 65,000 (110,000 ) 40,000 Call options on interest rate futures 1,165,000 1,635,000 (1,665,000 ) 1,135,000 Put options on interest rate futures 1,020,000 1,548,000 (1,295,000 ) 1,273,000 CRT Agreements — 740,153 — 740,153 Six months ended June 30, 2016 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 2,450,642 35,292,415 (33,395,531 ) 4,347,526 Forward purchase contracts 2,469,550 25,430,142 (23,709,343 ) 4,190,349 MBS call options 375,000 2,725,000 (1,575,000 ) 1,525,000 Swap futures — 25,000 (12,500 ) 12,500 Eurodollar future sale contracts 1,755,000 80,000 (292,000 ) 1,543,000 Call options on interest rate futures 50,000 1,575,000 (1,100,000 ) 525,000 Put options on interest rate futures 1,600,000 2,600,000 (3,775,000 ) 425,000 CRT Agreements 4,546,265 5,084,744 (654,048 ) 8,976,961 Six months ended June 30, 2015 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 1,601,283 23,877,061 (22,226,058 ) 3,252,286 Forward purchase contracts 1,100,700 16,933,180 (15,770,258 ) 2,263,622 MBS put option 340,000 992,500 (965,000 ) 367,500 MBS call option — 140,000 (100,000 ) 40,000 Eurodollar future sale contracts 7,426,000 285,000 (1,727,000 ) 5,984,000 Eurodollar future purchase contracts 800,000 — (800,000 ) — Treasury future sale contracts 85,000 161,500 (206,500 ) 40,000 Call options on interest rate futures 1,030,000 2,275,000 (2,170,000 ) 1,135,000 Put options on interest rate futures 275,000 2,668,000 (1,670,000 ) 1,273,000 CRT Agreements — 740,153 — 740,153 Following are the net gains (losses) recognized by the Company on derivative financial instruments and the consolidated statements of operations line items where such gains and losses are included: Quarter ended June 30, Six months ended June 30, Income statement line 2016 2015 2016 2015 (in thousands) Interest rate lock commitments Net gain on mortgage loans acquired for sale $ 44,112 $ (11,728 ) $ 75,475 $ 7,684 Hedged item: Interest rate lock commitments and mortgage loans acquired for sale Net gain on mortgage loans acquired for sale $ (29,210 ) $ 25,566 $ (59,882 ) $ 10,455 Mortgage servicing rights Net loan servicing fees $ 27,433 $ (16,270 ) $ 57,394 $ (5,193 ) Fixed-rate assets and LIBOR- indexed repurchase agreements Net gain on investments $ 862 $ (1,255 ) $ 698 $ (11,294 ) CRT agreements Net gain on investments $ 7,764 $ — $ 3,621 $ —

Mortgage Loans at Fair Value

Mortgage Loans at Fair Value	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Mortgage Loans at Fair Value	Note 10—Mortgage Loans at Fair Value Mortgage loans at fair value are comprised of mortgage loans that are not acquired for sale and, to the extent they are not held in a VIE securing an asset-backed financing, may be sold at a later date pursuant to a management determination that such a sale represents the most advantageous liquidation strategy for the identified mortgage loan. Following is a summary of the distribution of the Company’s mortgage loans at fair value: June 30, 2016 December 31, 2015 Loan type Fair value Unpaid principal balance Fair value Unpaid principal balance (in thousands) Distressed mortgage loans Nonperforming mortgage loans $ 952,144 $ 1,314,229 $ 1,222,956 $ 1,702,548 Performing mortgage loans: Fixed interest rate 313,064 413,063 417,658 535,610 Interest rate step-up 233,925 333,517 299,569 412,749 Adjustable-rate/hybrid 109,773 126,842 160,051 185,997 Balloon — — 160 204 656,762 873,422 877,438 1,134,560 Fixed interest rate jumbo mortgage loans held in a VIE 427,091 416,195 455,394 454,935 $ 2,035,997 $ 2,603,846 $ 2,555,788 $ 3,292,043 Mortgage loans at fair value pledged to secure: Assets sold under agreements to repurchase $ 1,589,798 $ 2,067,341 Asset-backed financing of a VIE at fair value and FHLB advances $ 427,091 $ 455,394 Following is a summary of certain concentrations of credit risk in the portfolio of distressed mortgage loans at fair value: Concentration June 30, 2016 December 31, 2015 (percentages are of fair value) Portion of mortgage loans originated between 2005 and 2007 71% 72% Percentage of fair value of mortgage loans with unpaid-principal balance-to-current-property-value in excess of 100% 42% 48% States contributing 5% or more of mortgage loans New York California New Jersey Florida Massachusetts California New York New Jersey Florida

Real Estate Acquired in Settlem

Real Estate Acquired in Settlement of Loans	6 Months Ended
	Jun. 30, 2016
Banking And Thrift [Abstract]
Real Estate Acquired in Settlement of Loans	Note 11—Real Estate Acquired in Settlement of Loans Following is a summary of financial information relating to REO: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance at beginning of period $ 327,212 $ 317,536 $ 341,846 $ 303,228 Transfers from mortgage loans at fair value and advances 53,558 71,961 114,052 158,078 Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment (8,082 ) (1,292 ) (12,266 ) (1,293 ) Results of REO: Valuation adjustments, net (7,283 ) (6,606 ) (17,928 ) (18,006 ) Gain on sale, net 4,718 4,800 9,327 10,368 (2,565 ) (1,806 ) (8,601 ) (7,638 ) Proceeds from sales (70,665 ) (62,121 ) (135,573 ) (128,097 ) Balance at end of period $ 299,458 $ 324,278 $ 299,458 $ 324,278 REO pledged to secure assets sold under agreements to repurchase $ 50,126 $ 55,420 REO held in a consolidated subsidiary whose stock is pledged to secure financings of such properties $ 166,017 $ 147,631

Mortgage Servicing Rights

Mortgage Servicing Rights	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Mortgage Servicing Rights	Note 12—Mortgage Servicing Rights Carried at Fair Value: Following is a summary of MSRs carried at fair value: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance at beginning of period $ 61,071 $ 49,448 $ 66,584 $ 57,358 Purchases — — 2,602 — MSRs resulting from mortgage loan sales 1,847 1,589 5,147 3,495 Changes in fair value: Due to changes in valuation inputs used in valuation model (1) (2,508 ) 8,088 (11,460 ) (107 ) Other changes in fair value (2) (2,433 ) (1,782 ) (4,896 ) (3,403 ) (4,941 ) 6,306 (16,356 ) (3,510 ) Balance at period end $ 57,977 $ 57,343 $ 57,977 $ 57,343 MSRs pledged to secure notes payable at period end $ 57,977 $ 57,343 (1) Principally reflects changes in pricing spread (discount rate) and prepayment speed inputs, primarily due to changes in market interest rates. (2) Represents changes due to realization of expected cash flows. Carried at Lower of Amortized Cost or Fair Value: Following is a summary of MSRs carried at lower of amortized cost or fair value: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Amortized Cost: Balance at beginning of period $ 422,676 $ 323,806 $ 404,101 $ 308,137 MSRs resulting from mortgage loan sales 58,262 30,587 91,124 56,141 Amortization (15,531 ) (9,988 ) (29,818 ) (19,580 ) Sales (106 ) — (106 ) (293 ) Balance at end of period 465,301 344,405 465,301 344,405 Valuation Allowance: Balance at beginning of period (28,650 ) (14,093 ) (10,944 ) (7,714 ) Additions (23,170 ) 7,082 (40,876 ) 703 Balance at end of period (51,820 ) (7,011 ) (51,820 ) (7,011 ) MSRs, net $ 413,481 $ 337,394 $ 413,481 $ 337,394 Fair value at beginning of period $ 405,635 $ 327,703 $ 424,154 $ 322,230 Fair value at period end $ 417,094 $ 362,908 MSRs pledged to secure notes payable at period end $ 413,481 $ 337,394 The following table summarizes the Company’s estimate of future amortization of its existing MSRs carried at amortized cost. This estimate was developed with the inputs used in the June 30, 2016 valuation of MSRs. The inputs underlying the following estimate will change as market conditions and portfolio composition and behavior change, causing both actual and projected amortization levels to change over time. Estimated MSR 12 months ended June 30, amortization (in thousands) 2017 $ 63,951 2018 54,865 2019 48,042 2020 42,175 2021 37,231 Thereafter 219,037 Total $ 465,301 Servicing fees relating to MSRs are recorded in Net mortgage loan servicing fees Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Contractually-specified servicing fees $ 29,991 $ 24,490 $ 57,770 $ 46,077

Assets Sold Under Agreements to

Assets Sold Under Agreements to Repurchase	6 Months Ended
	Jun. 30, 2016
Brokers And Dealers [Abstract]
Assets Sold Under Agreements to Repurchase	Note 13—Assets Sold Under Agreements to Repurchase Following is a summary of financial information relating to assets sold under agreements to repurchase: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average interest rate (1) 2.17 % 2.25 % 2.19 % 2.25 % Average balance $ 3,268,774 $ 3,172,806 $ 3,033,038 $ 3,061,923 Total interest expense $ 22,056 $ 20,208 $ 42,468 $ 39,120 Maximum daily amount outstanding $ 4,331,706 $ 3,511,918 $ 4,402,724 $ 3,842,167 (1) Excludes the effect of amortization of debt issuance costs of $2.2 million and $4.3 million for the quarter and six months ended June 30, 2016, respectively, and $2.2 million and $4.9 million for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value: Amount outstanding $ 3,276,854 $ 3,130,328 Unamortized debt issuance costs (1,163 ) (1,548 ) $ 3,275,691 $ 3,128,780 Weighted-average interest rate 2.26 % 2.33 % Available borrowing capacity: Committed $ 488,906 $ 231,913 Uncommitted 895,213 661,756 $ 1,384,119 $ 893,669 Margin deposits placed with counterparties included in Other $ 8,320 $ 7,268 Fair value of assets securing agreements to repurchase: Mortgage-backed securities $ 531,612 $ 313,753 Mortgage loans acquired for sale at fair value 1,341,459 1,204,462 Mortgage loans at fair value 1,589,798 2,067,341 Real estate acquired in settlement of loans 216,143 283,343 Restricted cash on credit risk transfer agreements 292,632 — $ 3,971,644 $ 3,868,899 Following is a summary of maturities of outstanding assets sold under agreements to repurchase by facility maturity date: Remaining Maturity at June 30, 2016 Contractual balance (in thousands) Within 30 days $ 340,352 Over 30 to 90 days 438,615 Over 90 days to 180 days 809,278 Over 180 days to 1 year 1,436,236 Over 1 year to 2 years 252,373 $ 3,276,854 Weighted average maturity (in months) 7 The Company is subject to margin calls during the period the agreements are outstanding and therefore may be required to repay a portion of the borrowings before the respective agreements mature if the fair value (as determined by the applicable lender) of the assets securing those agreements decreases. Margin deposits are included in Other The amount at risk (the fair value of the assets pledged plus the related margin deposit, less the amount advanced by the counterparty and interest payable) and maturity information relating to the Company’s assets sold under agreements to repurchase is summarized by counterparty below as of June 30, 2016: Mortgage loans acquired for sale, Mortgage loans and REO sold under agreements to repurchase Weighted-average Counterparty Amount repurchase agreement maturity Facility maturity (in thousands) Citibank, N.A. $ 327,363 August 6, 2016 October 20, 2016 Credit Suisse First Boston Mortgage Capital LLC $ 158,462 September 21, 2016 March 30, 2017 JPMorgan Chase & Co. $ 131,702 - January 26, 2017 Bank of America, N.A. $ 37,040 September 22, 2016 March 28, 2017 Morgan Stanley $ 14,924 August 22, 2016 December 16, 2016 Barclays Capital $ 3,879 September 13, 2016 September 13, 2016 Securities sold under agreements to repurchase Counterparty Amount at risk Weighted average maturity (in thousands) Bank of America, N.A. $ 10,415 August 10, 2016 Daiwa Capital Markets America Inc. $ 10,582 August 9, 2016 JPMorgan Chase & Co. $ 3,449 July 28, 2016 Wells Fargo, N.A. $ 3,070 July 17, 2016 CRT Agreements Counterparty Amount at risk Weighted average maturity (in thousands) JPMorgan Chase & Co. $ 38,630 July 22, 2016 Bank of America, N.A. $ 30,102 July 15, 2016 BNP Paribas Corporate & Institutional Banking $ 18,103 July 14, 2016 The following is a summary of the tangible net worth, as defined in the respective borrowing agreements, and minimum required amounts for the Company and certain of its subsidiaries at June 30, 2016 to comply with the debt covenants contained in the borrowing agreements: Tangible net worth as of June 30, 2016 Minimum Entity Balance required (in thousands) PennyMac Mortgage Investment Trust $ 1,360,827 $ 860,000 Operating Partnership $ 1,401,552 $ 700,000 PennyMac Holdings, LLC $ 784,290 $ 250,000 PennyMac Corp. $ 401,634 $ 150,000

Mortgage Loan Participation and

Mortgage Loan Participation and Sale Agreements	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Mortgage Loan Participation and Sale Agreements	Note 14—Mortgage Loan Participation and Sale Agreements Two of the borrowing facilities secured by mortgage loans acquired for sale are in the form of mortgage loan participation and sale agreements. Participation certificates, each of which represents an undivided beneficial ownership interest in a pool of mortgage loans that have been pooled with Fannie Mae or Freddie Mac, are sold to the lender pending the securitization of such mortgage loans and the sale of the resulting security. A commitment between the Company and a nonaffiliate to sell such security is also assigned to the lender at the time a participation certificate is sold. The purchase price paid by the lender for each participation certificate is based on the trade price of the security, plus an amount of interest expected to accrue on the security to its anticipated delivery date, minus a present value adjustment, any related hedging costs and a holdback amount that is based on a percentage of the purchase price and is not required to be paid to the Company until the settlement of the security and its delivery to the lender. Mortgage loan participation and sale agreements are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average interest rate (1) 1.69 % 1.43 % 1.68 % 1.43 % Average balance $ 70,701 $ 60,363 $ 69,649 $ 52,001 Total interest expense $ 333 $ 266 $ 661 $ 473 Maximum daily amount outstanding $ 96,335 $ 148,032 $ 97,672 $ 148,032 (1) Excludes the effect of amortization of debt issuance costs of $31,000 and $68,000 for the quarter and six months ended June 30, 2016, respectively, and $47,000 and $99,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 (dollars in Carrying value: Amount outstanding $ 96,335 Unamortized debt issuance costs — $ 96,335 Weighted-average interest rate 1.72 % Mortgage loans acquired for sale pledged to secure mortgage loan participation and sale agreements $ 100,497

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances	6 Months Ended
	Jun. 30, 2016
Banking And Thrift [Abstract]
Federal Home Loan Bank Advances	Note 15—Federal Home Loan Bank Advances In June 2015, the Company entered into a collateral, pledge, and security agreement with the Federal Home Loan Bank of Des Moines with no specified termination date. The Company was able to request advances up to a maximum of $400.0 million. On January 12, 2016, the Federal Housing Finance Agency (“FHFA”) issued a final rule establishing new requirements for membership in the Federal Home Loan Banks. The final rule excludes captive insurance companies such as the Company’s insurance subsidiary, Copper Insurance, LLC, from membership. For captive insurance companies that became members since the rule was proposed in 2014, including Copper Insurance, LLC, membership must be terminated within one year, and no additional advances may be made. Accordingly, the Company has repaid all of the advances outstanding as of June 30, 2016. The FHLB advances are summarized below: Six Months Ended June 30, 2016 (dollars During the period: Weighted-average interest rate 0.49 % Average balance $ 49,019 Total interest expense $ 122 Maximum daily amount outstanding $ 201,130 December 31, 2015 (dollars in thousands) Carrying value $ 183,000 Weighted-average interest rate 0.30 % Fair value of assets securing FHLB advances: Mortgage-backed securities $ 8,720 Mortgage loans acquired for sale at fair value 63,993 Mortgage loans at fair value 134,172 $ 206,885

Notes Payable

Notes Payable	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Notes Payable	Note 16—Notes Payable On March 31, 2015, the Company, through PMC, entered into a Loan and Security Agreement with Citibank, N.A., pursuant to which PMC may finance certain of its MSRs relating to mortgage loans pooled into Freddie Mac MBS in an aggregate loan amount not to exceed $125 million. The note matures on October 20, 2016. On September 14, 2015, the Company, through PMC, entered into a Loan and Security Agreement with Barclays Bank PLC (“Barclays”), pursuant to which PMC may finance certain of its MSRs relating to mortgage loans pooled into Fannie Mae MBS in an aggregate loan amount not to exceed $200 million. The note matures on September 13, 2016, subject to a wind down period of up to one year following such maturity date. Following is a summary of financial information relating to the notes payable: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars During the period: Weighted-average interest rate (1) 4.63 % 4.18 % 4.65 % 4.18 % Average balance $ 188,330 $ 104,797 $ 200,973 $ 52,981 Total interest expense $ 2,991 $ 994 $ 6,334 $ 994 Maximum daily amount outstanding $ 211,103 $ 192,352 $ 234,476 $ 192,352 (1) Excludes the effect of amortization of debt issuance costs of $788,000 and $1.6 million for the quarter and six months ended June 30, 2016, respectively, and $354,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value: Amount outstanding $ 164,003 $ 236,107 Unamortized debt issuance costs (27 ) (92 ) $ 163,976 $ 236,015 Weighted-average interest rate 4.32 % 4.53 % MSRs pledged to secure notes payable $ 471,458 $ 459,741

Asset-Backed Financing of a Var

Asset-Backed Financing of a Variable Interest Entity at Fair Value	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Asset-Backed Financing of a Variable Interest Entity at Fair Value	Note 17—Asset-Backed Financing of a Variable Interest Entity at Fair Value Following is a summary of financial information relating to the asset-backed financing of a VIE: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average fair value $ 334,233 $ 159,236 $ 325,112 $ 162,361 Interest expense $ 3,606 $ 1,301 $ 4,958 $ 2,885 Weighted-average effective interest rate 3.34 % 3.23 % 3.34 % 3.53 % June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value $ 325,939 $ 247,690 UPB $ 317,305 $ 248,284 Weighted-average interest rate 3.50 % 3.50 % The asset-backed financing of a VIE is a non-recourse liability and secured solely by the assets of a consolidated VIE and not by any other assets of the Company. The assets of the VIE are the only source of funds for repayment of the certificates.

Exchangeable Senior Notes

Exchangeable Senior Notes	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Exchangeable Senior Notes	Note 18—Exchangeable Senior Notes PMC issued in a private offering $250 million aggregate principal amount of the Exchangeable Notes due May 1, 2020. The Exchangeable Notes bear interest at a rate of 5.375% per year, payable semiannually. The Exchangeable Notes are exchangeable into common shares of the Company at a rate of 33.8667 common shares per $1,000 principal amount of the Exchangeable Notes as of June 30, 2016, which is an increase over the initial exchange rate of 33.5149. The increase in the calculated exchange rate was the result of quarterly cash dividends exceeding the quarterly dividend threshold amount of $0.57 per share in prior reporting periods, as provided in the related indenture. Following is financial information relating to the Exchangeable Notes: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) During the period: Weighted-average UPB $ 250,000 $ 250,000 $ 250,000 $ 250,000 Interest expense (1) $ 3,616 $ 3,601 $ 7,228 $ 7,198 (1) Total interest expense includes amortization of debt issuance costs of $257,000 and $509,000 for the quarter and six months ended June 30, 2016, respectively, and $242,000 and $481,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (in thousands) Carrying value: UPB $ 250,000 $ 250,000 Unamortized debt issuance costs (4,436 ) (4,946 ) $ 245,564 $ 245,054

Liability for Losses Under Repr

Liability for Losses Under Representations and Warranties	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Liability for Losses Under Representations and Warranties	Note 19—Liability for Losses Under Representations and Warranties Following is a summary of the Company’s liability for losses under representations and warranties: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance, beginning of period $ 18,712 $ 15,379 $ 20,171 $ 14,242 Provision for losses Pursuant to mortgage loan sales 650 1,419 1,221 2,344 Adjustment to previously recorded amount due to change in estimate — — (1,724 ) — Losses incurred (104 ) (84 ) (410 ) (102 ) Recoveries — — — 230 Balance, end of period $ 19,258 $ 16,714 $ 19,258 $ 16,714 UPB of mortgage loans subject to representations and warranties at period end $ 46,339,653 $ 37,431,575

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 20—Commitments and Contingencies Litigation From time to time, the Company may be involved in various proceedings, claims and legal actions arising in the ordinary course of business. As of June 30, 2016, the Company was not involved in any such proceedings, claims or legal actions that in management’s view would reasonably be likely to have a material adverse effect on the Company. Mortgage Loan Commitments The following table summarizes the Company’s outstanding contractual loan commitments: June 30, 2016 (in thousands) Commitments to purchase mortgage loans acquired for sale $ 1,658,813

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jun. 30, 2016
Equity [Abstract]
Shareholders' Equity	Note 21—Shareholders’ Equity Common Share Repurchases During August 2015, the Company’s board of trustees authorized a common share repurchase program under which the Company may repurchase up to $150 million of its outstanding common shares. During February 2016, the Company’s board of trustees approved an increase to its share repurchase program pursuant to which the Company is now authorized to repurchase up to $200 million of its common shares. During the quarter and six months ended June 30, 2016, the Company repurchased 1.2 million and 6.3 million common shares at a cost of $18.4 million and $82.8 million, respectively, for a cumulative total of 7.4 million common shares repurchased at a cost of $99.2 million under the program. The repurchased common shares were canceled upon settlement of the repurchase transactions and returned to the authorized but unissued share pool. Common Share Issuances The Company has entered into an ATM Equity Offering Sales Agreement SM At June 30, 2016, the Company had approximately $106.9 million of common shares available for issuance under its ATM Equity Offering Sales Agreement SM

Net Interest Income

Net Interest Income	6 Months Ended
	Jun. 30, 2016
Banking And Thrift Interest [Abstract]
Net Interest Income	Note 22—Net Interest Income Net interest income is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Interest income: From nonaffiliates: Short-term investments $ — $ 82 $ 377 $ 302 Mortgage-backed securities 2,756 2,505 5,468 5,139 Mortgage loans acquired for sale at fair value 13,596 10,315 22,860 17,416 Mortgage loans at fair value 23,042 22,171 52,228 43,725 Mortgage loans at fair value held by a VIE 4,951 4,429 10,480 9,842 Other 1,708 13 1,991 24 46,053 39,515 93,404 76,448 From PFSI: ESS purchased from PFSI, at fair value 5,713 5,818 12,728 9,570 51,766 45,333 106,132 86,018 Interest expense: To nonaffiliates: Assets sold under agreements to repurchase 22,056 20,208 42,468 39,120 Mortgage loan participation and sale agreements 333 266 661 473 FHLB advances — 2 122 2 Notes payable 2,991 994 6,334 994 Asset-backed financings of VIEs at fair value (1) 3,606 2,414 4,958 3,997 Exchangeable Notes 3,616 3,601 7,228 7,198 Interest shortfall on repayments of mortgage loans serviced for Agency securitizations 1,589 1,291 2,561 2,464 Placement fees on mortgage loan impound deposits 180 430 441 704 34,371 29,206 64,773 54,952 To PFSI—Note payable 2,222 533 3,824 533 36,593 29,739 68,597 55,485 Net interest income $ 15,173 $ 15,594 $ 37,535 $ 30,533 (1) The results for the quarter and six months ended June 30, 2015 include interest expense from Asset-backed financing of a VIE at fair value and CRT Agreements financing at fair value.

Net Gain on Mortgage Loans Acqu

Net Gain on Mortgage Loans Acquired for Sale	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Net Gain on Mortgage Loans Acquired for Sale	Note 23—Net Gain on Mortgage Loans Acquired for Sale Net gain on mortgage loans acquired for sale is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Cash loss: Mortgage loans $ (18,461 ) $ (51,218 ) $ (21,480 ) $ (58,762 ) Hedging activities (29,118 ) 18,713 (61,694 ) 6,186 (47,579 ) (32,505 ) (83,174 ) (52,576 ) Non cash gain: Receipt of MSRs in mortgage loan sale transactions 60,109 32,176 96,271 59,636 Provision for losses relating to representations and warranties provided in mortgage loan sales Pursuant to mortgage loans sales (650 ) (1,419 ) (1,221 ) (2,344 ) Adjustment to previously recorded amount due to change in estimate — — 1,724 — Change in fair value during the period of financial instruments held at period end: IRLCs 7,423 (8,481 ) 12,111 (5,927 ) Mortgage loans 5,015 14,551 11,752 18,277 Hedging derivatives (92 ) 6,853 1,812 4,269 12,346 12,923 25,675 16,619 $ 24,226 $ 11,175 $ 39,275 $ 21,335

Net (Loss) Gain on Investments

Net (Loss) Gain on Investments	6 Months Ended
	Jun. 30, 2016
Investments Debt And Equity Securities [Abstract]
Net (Loss) Gain on Investments	Note 24—Net (Loss) Gain on Investments Net (loss) gain on investments is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Net (loss) gain on investments: From non-affiliates: Mortgage-backed securities $ 4,332 $ (6,702 ) $ 9,431 $ (5,186 ) Mortgage loans at fair value (13,463 ) 30,068 932 47,254 Mortgage loans held in a VIE (48 ) (12,077 ) 8,347 (10,277 ) CRT Agreements 7,764 — 3,621 — Asset-backed financing of a VIE at fair value 890 3,991 (8,963 ) 3,222 Hedging derivatives 862 (1,255 ) 698 (11,294 ) 337 14,025 14,066 23,719 From PFSI—ESS (15,824 ) 8,589 (33,451 ) 2,342 $ (15,487 ) $ 22,614 $ (19,385 ) $ 26,061

Net Mortgage Loan Servicing Fee

Net Mortgage Loan Servicing Fees	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Net Mortgage Loan Servicing Fees	Note 25—Net Mortgage Loan Servicing Fees Net mortgage loan servicing fees are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Servicing fees (1) $ 31,578 $ 25,887 $ 60,450 $ 48,516 MSR recapture fee from PFSI 311 — 440 — Effect of MSRs: Carried at lower of amortized cost or fair value: Amortization (15,531 ) (9,988 ) (29,818 ) (19,580 ) Provision for impairment (23,170 ) 7,082 (40,876 ) 703 Gain on sale 11 — 11 83 Carried at fair value—change in fair value (4,941 ) 6,306 (16,356 ) (3,510 ) Gains on hedging derivatives 27,433 (16,270 ) 57,394 (5,193 ) (16,198 ) (12,870 ) (29,645 ) (27,497 ) Net mortgage loan servicing fees $ 15,691 $ 13,017 $ 31,245 $ 21,019 Average servicing portfolio $ 45,647,524 $ 35,742,835 $ 44,531,795 $ 35,215,677 (1) Includes contractually specified servicing and ancillary fees.

Share-Based Compensation Plans

Share-Based Compensation Plans	6 Months Ended
	Jun. 30, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation Plans	Note 26—Share-Based Compensation Plans As of June 30, 2016 and 2015, the Company had one share-based compensation plan. The Company recognized compensation expense of $2.0 million and $3.0 million for the quarter and six months ended June 30, 2016, respectively, and $1.1 million and $3.7 million for the quarter and six months ended June 30, 2015, respectively. The Company granted 330,076 restricted share units with a grant date fair value of $6.3 million during the quarter and six months ended June 30, 2016 and 294,684 restricted share units with a grant date fair value of $6.3 million during the quarter and six months ended June 30, 2015. The 2016 grant includes 112,079 performance-based awards. The Company had vestings of 222,533 and 298,581 restricted share units during the quarter and six months ended June 30, 2016, respectively, and 226,700 and 301,763 restricted share units during the quarter and six months ended June 30, 2015, respectively.

Other Expenses

Other Expenses	6 Months Ended
	Jun. 30, 2016
Other Income And Expenses [Abstract]
Other Expenses	Note 27—Other Expenses Other expenses are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Common overhead allocation from PFSI (1) $ 2,434 $ 2,546 $ 4,996 $ 4,937 Mortgage loan origination 1,557 1,176 2,678 2,129 Real estate held for investment 930 — 1,487 — Technology 332 311 766 603 Insurance 316 302 634 675 Other 946 861 1,590 1,708 $ 6,515 $ 5,196 $ 12,151 $ 10,052 (1) For the quarter ended June 30, 2015, in accordance with the terms of the Company’s management agreement, PCM provided the Company a discretionary waiver of $700,000 of overhead expenses that otherwise would have been allocable to the Company. On December 15, 2015, the Operating Partnership amended its management agreement to provide that the overhead costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Note 28—Income Taxes The Company’s effective tax rate was 35.4% and (219.8)% for the quarter and six months ended June 30, 2016 and (11.9)% and (67.3)% for the quarter and six months ended June 30, 2015, respectively. The Company’s taxable REIT subsidiary recognized tax benefits of $3.7 million and $6.1 million on losses of $9.3 million and $15.3 million while the Company reported a consolidated pretax loss of $8.2 million and pretax income of $2.9 million for the quarter and six months ended June 30, 2016, respectively. For the same periods in 2015, the taxable REIT subsidiary recognized tax benefits of $1.1 million and $12.9 million on losses of $2.6 million and $31.3 million while the Company reported a consolidated pretax income of $25.1 million and $21.3 million, respectively. The relative values between the tax benefit at the taxable REIT subsidiary and the Company’s consolidated pretax income drive the fluctuation in the effective tax rate. The primary difference between the Company’s effective tax rate and the statutory tax rate is due to non-taxable REIT income resulting from the dividends paid deduction. In general, cash dividends declared by the Company will be considered ordinary income to shareholders for income tax purposes. Some portion of the dividends may be characterized as capital gain distributions or a return of capital.

Segments and Related Informatio

Segments and Related Information	6 Months Ended
	Jun. 30, 2016
Segment Reporting [Abstract]
Segments and Related Information	Note 29—Segments and Related Information Financial highlights by operating segment are summarized below: Correspondent Investment Quarter ended June 30, 2016 production activities Total (in thousands) Net investment income: Interest income $ 13,415 $ 38,351 $ 51,766 Interest expense (7,951 ) (28,642 ) (36,593 ) 5,464 9,709 15,173 Net gain on mortgage loans acquired for sale 24,226 — 24,226 Net loss on investments — (15,487 ) (15,487 ) Net mortgage loan servicing fees — 15,691 15,691 Other income (loss) 8,535 (520 ) 8,015 38,225 9,393 47,618 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 19,710 21,027 40,737 Other 2,082 12,958 15,040 21,792 33,985 55,777 Pre-tax income (loss) $ 16,433 $ (24,592 ) $ (8,159 ) Total assets at period end $ 1,492,171 $ 4,275,391 $ 5,767,562 Correspondent Investment Quarter ended June 30, 2015 production activities Total (in thousands) Net investment income: Interest income $ 8,997 $ 36,336 $ 45,333 Interest expense (4,763 ) (24,976 ) (29,739 ) 4,234 11,360 15,594 Net gain on mortgage loans acquired for sale 11,175 — 11,175 Net gain on investments — 22,614 22,614 Net mortgage loan servicing fees — 13,017 13,017 Other income 7,352 13 7,365 22,761 47,004 69,765 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 15,785 17,463 33,248 Other 1,754 9,675 11,429 17,539 27,138 44,677 Pre-tax income $ 5,222 $ 19,866 $ 25,088 Total assets at period end $ 2,243,570 $ 4,433,804 $ 6,677,374 Correspondent Investment Six months ended June 30, 2016 production activities Total (in thousands) Net investment income: Interest income $ 22,439 $ 83,693 $ 106,132 Interest expense (13,070 ) (55,527 ) (68,597 ) 9,369 28,166 37,535 Net gain on mortgage loans acquired for sale 39,275 — 39,275 Net loss on investments — (19,385 ) (19,385 ) Net mortgage loan servicing fees — 31,245 31,245 Other income (loss) 15,373 (4,209 ) 11,164 64,017 35,817 99,834 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 33,064 37,413 70,477 Other 3,609 22,863 26,472 36,673 60,276 96,949 Pre-tax income (loss) $ 27,344 $ (24,459 ) $ 2,885 Total assets at period end $ 1,492,171 $ 4,275,391 $ 5,767,562 Correspondent Investment Six months ended June 30, 2015 production activities Total (in thousands) Net investment income: Interest income $ 16,109 $ 69,909 $ 86,018 Interest expense (8,583 ) (46,902 ) (55,485 ) 7,526 23,007 30,533 Net gain on mortgage loans acquired for sale 21,335 — 21,335 Net gain on investments — 26,061 26,061 Net mortgage loan servicing fees — 21,019 21,019 Other income (loss) 12,703 (4,229 ) 8,474 41,564 65,858 107,422 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 28,956 34,831 63,787 Other 2,938 19,429 22,367 31,894 54,260 86,154 Pre-tax income $ 9,670 $ 11,598 $ 21,268 Total assets at period end $ 2,243,570 $ 4,433,804 $ 6,677,374

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Jun. 30, 2016
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Note 30—Supplemental Cash Flow Information Six months ended June 30, 2016 2015 (in thousands) Cash paid for interest $ 76,198 $ 53,449 Income taxes paid, net $ 388 $ 401 Non-cash investing activities: Receipt of MSRs as proceeds from sales of mortgage loans $ 96,271 $ 59,636 Transfer of mortgage loans and advances to real estate acquired in settlement of loans $ 114,052 $ 158,078 Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment $ 12,266 $ 1,548 Receipt of ESS pursuant to recapture agreement with PFSI $ 3,601 $ 2,565 Non-cash financing activities: Transfer of mortgage loans at fair value financed under agreements to repurchase to REO financed under agreements to repurchase $ 15,191 $ 24,972 Dividends payable $ 32,082 $ 46,074

Regulatory Capital and Liquidit

Regulatory Capital and Liquidity Requirements	6 Months Ended
	Jun. 30, 2016
Mortgage Banking [Abstract]
Regulatory Capital and Liquidity Requirements	Note 31—Regulatory Capital and Liquidity Requirements PMC is a seller-servicer for Fannie Mae and Freddie Mac. The Company is required to comply with the following minimum capital and liquidity eligibility requirements to remain in good standing with each Agency: · A minimum net worth of a base of $2.5 million plus 25 basis points of UPB for total 1-4 unit residential mortgage loans serviced; · A tangible net worth/total assets ratio greater than or equal to 6%; and · Liquidity equal to or exceeding 3.5 basis points multiplied by the aggregate UPB of all mortgages secured by 1-4 unit residential properties serviced for Freddie Mac and Fannie Mae (“Agency Mortgage Servicing”) plus 200 basis points multiplied by the sum of nonperforming (90 or more days delinquent) Agency Mortgage Servicing that exceeds 6% of Agency Mortgage Servicing. Such Agencies’ capital and liquidity requirements, the calculations of which are defined by each entity, are summarized below: June 30, 2016 Net Worth (1) Tangible Net Worth / Total Assets Ratio (1) Liquidity (1) Agency Actual Required Actual Required Actual Required (in thousands) (in thousands) (in thousands) Fannie Mae $ 402,793 $ 120,219 13 % 6 % $ 67,636 $ 16,481 Freddie Mac $ 402,793 $ 120,219 13 % 6 % $ 67,636 $ 16,481 (1) Calculated in compliance with the respective Agency’s requirements. Noncompliance with the respective Agency’s capital and liquidity requirements can result in the respective Agency taking various remedial actions up to and including removing the Company’s ability to sell loans to and service loans on behalf of the respective Agency.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	6 Months Ended
	Jun. 30, 2016
Accounting Changes And Error Corrections Abstract
Recently Issued Accounting Pronouncements	Note 32—Recently Issued Accounting Pronouncements In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis On January 5, 2016, the FASB issued ASU 2016-01, Financial Instruments–Overall: Recognition and Measurement of Financial Assets and Financial Liabilities ASU 2016-01 requires that: · All equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) with readily determinable fair values will generally be measured at fair value through earnings. · When the fair value option has been elected for financial liabilities, changes in fair value due to instrument-specific credit risk will be recognized separately in other comprehensive income. The accumulated gains and losses due to these changes will be reclassified from accumulated other comprehensive income to earnings if the financial liability is settled before maturity. · For financial instruments measured at amortized cost, public business entities will be required to use the exit price when measuring the fair value of financial instruments for disclosure purposes. · Financial assets and financial liabilities shall be presented separately in the notes to the financial statements, grouped by measurement category (e.g., fair value, amortized cost, lower of cost or fair value) and form of financial asset (e.g., loans, securities). · Public business entities will no longer be required to disclose the methods and significant assumptions used to estimate the fair value of financial instruments carried at amortized cost. · Entities will have to assess the realizability of a deferred tax asset related to a debt security classified as available for sale in combination with the entity’s other deferred tax assets. The classification and measurement guidance will be effective for public business entities in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption of the provision to record fair value changes for financial liabilities under the fair value option resulting from instrument-specific credit risk in other comprehensive income is permitted and can be elected for all financial statements of fiscal years and interim periods that have not yet been issued or that have not yet been made available for issuance. The Company is currently assessing the potential effect that the adoption of ASU 2016-01 will have on its consolidated financial statements. In March of 2016, The FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting · Modifies the accounting for income taxes relating to share-based payments. All excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) will be recognized as income tax expense or benefit in the consolidated statement of operations. The tax effects of exercised or vested awards will be treated as discrete items in the reporting period in which they occur. An entity will recognize excess tax benefits regardless of whether the benefit reduces taxes payable in the current period. Under current GAAP, excess tax benefits are recognized in additional paid-in capital; tax deficiencies are recognized either as an offset to accumulated excess tax benefits, if any, or in the consolidated statement of operations in the period they reduce income taxes payable. · Changes the classification of excess tax benefits on the consolidated statement of cash flows. In the consolidated statement of cash flows, excess tax benefits will be classified along with other income tax cash flows as an operating activity. Under current GAAP, excess tax benefits are separated from other income tax cash flows and classified as a financing activity. · Changes the requirement to estimate the number of awards that are expected to vest. Under ASC 2016-09, an entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest as presently required or account for forfeitures when they occur. Under current GAAP, accruals of compensation cost are based on the number of awards that are expected to vest. · Changes the tax withholding requirements for share-based payment awards to qualify for equity accounting. The threshold to qualify for equity classification permits withholding up to the maximum statutory tax rates in the applicable jurisdictions. Under current GAAP, for an award to qualify for equity classification is that an entity cannot partially settle the award in cash in excess of the employer’s minimum statutory withholding requirements. · Establishes GAAP for the classification of employee taxes paid when an employer withholds shares for tax withholding purposes. Cash paid by an employer when directly withholding shares for tax- withholding purposes should be classified as a financing activity. This guidance establishes GAAP related to the classification of withholding taxes in the statement of cash flows as there is no such guidance under current GAAP. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any organization in any interim or annual period. The Company is currently assessing the potential effect that the adoption of ASU 2016-09 will have on its consolidated financial statements.

Organization and Basis of Pre40

Organization and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Segment Reporting	The Company operates in two segments, correspondent production and investment activities: · The correspondent production segment represents the Company’s operations aimed at serving as an intermediary between mortgage lenders and the capital markets by purchasing, pooling and reselling newly originated prime credit quality mortgage loans either directly or in the form of mortgage-backed securities (“MBS”), using the services of PNMAC Capital Management, LLC (“PCM” or the “Manager”) and PennyMac Loan Services, LLC (“PLS”), both indirect controlled subsidiaries of PennyMac Financial Services, Inc. (“PFSI”). Most of the mortgage loans the Company has acquired in its correspondent production activities have been eligible for sale to government-sponsored entities such as the Federal National Mortgage Association (“Fannie Mae”) and the Federal Home Loan Mortgage Corporation (“Freddie Mac”) or through government agencies such as the Government National Mortgage Association (“Ginnie Mae”). Fannie Mae, Freddie Mac and Ginnie Mae are each referred to as an “Agency” and, collectively, as the “Agencies.” · The investment activities segment represents the Company’s investments in mortgage-related assets, which include MBS, distressed mortgage loans, excess servicing spread (“ESS”), credit risk transfer agreements (“CRT Agreements”), real estate acquired in settlement of loans (“REO”), real estate held for investment, mortgage servicing rights (“MSRs”), and small balance commercial real estate loans.
Basis of Accounting	The Company conducts substantially all of its operations and makes substantially all of its investments through its subsidiary, PennyMac Operating Partnership, L.P. (the “Operating Partnership”), and the Operating Partnership’s subsidiaries. A wholly-owned subsidiary of the Company is the sole general partner, and the Company is the sole limited partner, of the Operating Partnership. The accompanying consolidated financial statements have been prepared in compliance with accounting principles generally accepted in the United States (“GAAP”) as codified in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification The accompanying unaudited consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations that may be anticipated for the full year. Intercompany accounts and transactions have been eliminated.
Concentration Risk	Due to the nature of the Company’s investments, PMT is exposed, to a greater extent than traditional mortgage investors, to the risks that borrowers may be in economic distress and/or may have become unemployed, bankrupt or otherwise unable or unwilling to make payments when due, and to the effects of fluctuations in the residential real estate market on the performance of its investments. Factors influencing these risks include, but are not limited to: · changes in the overall economy, unemployment rates and residential real estate values in the markets where the properties securing the Company’s mortgage loans are located; · PCM’s ability to identify and PLS’ ability to execute optimal resolutions of certain mortgage loans; · the accuracy of valuation information obtained during the Company’s due diligence activities; · PCM’s ability to effectively model, and to develop appropriate model inputs that properly anticipate, future outcomes; · the level of government support for resolution of certain mortgage loans and the effect of current and future proposed and enacted legislative and regulatory changes on the Company’s ability to effect cures or resolutions to distressed mortgage loans; and · regulatory, judicial and legislative support of the foreclosure process, and the resulting effect on the Company’s ability to acquire and liquidate the real estate securing its portfolio of distressed mortgage loans in a timely manner or at all. Due to these uncertainties, there can be no assurance that risk management activities identified and executed on PMT’s behalf will prevent significant losses arising from the Company’s investments in real estate-related assets.
Earnings Per Share	The Company grants restricted share units which entitle the recipients to receive dividend equivalents during the vesting period on a basis equivalent to the dividends paid to holders of common shares. Unvested share-based compensation awards containing non-forfeitable rights to receive dividends or dividend equivalents (collectively, “dividends”) are classified as “participating securities” and are included in the basic earnings per share calculation using the two-class method. Under the two-class method, all earnings (distributed and undistributed) are allocated to common shares and participating securities, based on their respective rights to receive dividends. Basic earnings per share is determined by dividing net income, reduced by income attributable to the participating securities, by the weighted-average common shares outstanding during the period. Diluted earnings per share is determined by dividing net income attributable to diluted shareholders, which adds back to net income the interest expense, net of applicable income taxes, on the Company’s exchangeable senior notes (the “Exchangeable Notes”), by the weighted-average common shares outstanding, assuming all potentially dilutive securities were issued. In periods in which the Company records a loss, potentially dilutive securities are excluded from the diluted loss per share calculation, as their effect on loss per share is anti-dilutive.
Fair Value Measurement	The Company’s consolidated financial statements include assets and liabilities that are measured based on their fair values. Measurement at fair value may be on a recurring or nonrecurring basis depending on the accounting principles applicable to the specific asset or liability and whether the Manager has elected to carry the item at its fair value as discussed in the following paragraphs. The Company groups its assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the inputs used to determine fair value. These levels are: · Level 1—Quoted prices in active markets for identical financial statement items. · Level 2—Prices determined or determinable using other significant observable inputs. Observable inputs are inputs that other market participants would use in pricing a financial statement item and are developed based on market data obtained from sources independent of the Company. These may include quoted prices for similar financial statement items, interest rates, prepayment speeds, credit risk and other inputs. · Level 3—Prices determined using significant unobservable inputs. In situations where significant observable inputs are unavailable (for example, when there is little or no market activity for a financial statement item at the end of the period) unobservable inputs may be used. Unobservable inputs reflect the Company’s own judgments about the factors that market participants use in pricing a financial statement item, and are based on the best information available in the circumstances. As a result of the difficulty in observing certain significant valuation inputs affecting “Level 3” fair value financial statement items, the Manager is required to make judgments regarding these items’ fair values. Different persons in possession of the same facts may reasonably arrive at different conclusions as to the inputs to be applied in valuing these financial statement items and their fair values. Likewise, due to the general illiquidity of some of these financial statement items, subsequent transactions may be at values significantly different from those reported. Fair Value Accounting Elections The Manager identified all of the Company’s non-cash financial assets and MSRs relating to loans with initial interest rates of more than 4.5%, to be accounted for at fair value. The Manager has elected to account for these financial statement items at fair value so such changes in fair value will be reflected in income as they occur and more timely reflect the results of the Company’s performance. The Manager has also identified the Company’s CRT financing and asset-backed financing of a VIE to be accounted for at fair value to reflect the generally offsetting changes in fair value of these borrowings to changes in fair value of mortgage loans at fair value collateralizing these financings. For assets sold under agreements to repurchase and the Exchangeable Notes, the Manager has determined that historical cost accounting is more appropriate because under this method debt issuance costs are amortized over the term of the debt, thereby matching the debt issuance cost to the periods benefiting from the availability of the debt.
Recently Issued Accounting Pronouncements	Note 32—Recently Issued Accounting Pronouncements In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis On January 5, 2016, the FASB issued ASU 2016-01, Financial Instruments–Overall: Recognition and Measurement of Financial Assets and Financial Liabilities ASU 2016-01 requires that: · All equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) with readily determinable fair values will generally be measured at fair value through earnings. · When the fair value option has been elected for financial liabilities, changes in fair value due to instrument-specific credit risk will be recognized separately in other comprehensive income. The accumulated gains and losses due to these changes will be reclassified from accumulated other comprehensive income to earnings if the financial liability is settled before maturity. · For financial instruments measured at amortized cost, public business entities will be required to use the exit price when measuring the fair value of financial instruments for disclosure purposes. · Financial assets and financial liabilities shall be presented separately in the notes to the financial statements, grouped by measurement category (e.g., fair value, amortized cost, lower of cost or fair value) and form of financial asset (e.g., loans, securities). · Public business entities will no longer be required to disclose the methods and significant assumptions used to estimate the fair value of financial instruments carried at amortized cost. · Entities will have to assess the realizability of a deferred tax asset related to a debt security classified as available for sale in combination with the entity’s other deferred tax assets. The classification and measurement guidance will be effective for public business entities in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption of the provision to record fair value changes for financial liabilities under the fair value option resulting from instrument-specific credit risk in other comprehensive income is permitted and can be elected for all financial statements of fiscal years and interim periods that have not yet been issued or that have not yet been made available for issuance. The Company is currently assessing the potential effect that the adoption of ASU 2016-01 will have on its consolidated financial statements. In March of 2016, The FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting · Modifies the accounting for income taxes relating to share-based payments. All excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) will be recognized as income tax expense or benefit in the consolidated statement of operations. The tax effects of exercised or vested awards will be treated as discrete items in the reporting period in which they occur. An entity will recognize excess tax benefits regardless of whether the benefit reduces taxes payable in the current period. Under current GAAP, excess tax benefits are recognized in additional paid-in capital; tax deficiencies are recognized either as an offset to accumulated excess tax benefits, if any, or in the consolidated statement of operations in the period they reduce income taxes payable. · Changes the classification of excess tax benefits on the consolidated statement of cash flows. In the consolidated statement of cash flows, excess tax benefits will be classified along with other income tax cash flows as an operating activity. Under current GAAP, excess tax benefits are separated from other income tax cash flows and classified as a financing activity. · Changes the requirement to estimate the number of awards that are expected to vest. Under ASC 2016-09, an entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest as presently required or account for forfeitures when they occur. Under current GAAP, accruals of compensation cost are based on the number of awards that are expected to vest. · Changes the tax withholding requirements for share-based payment awards to qualify for equity accounting. The threshold to qualify for equity classification permits withholding up to the maximum statutory tax rates in the applicable jurisdictions. Under current GAAP, for an award to qualify for equity classification is that an entity cannot partially settle the award in cash in excess of the employer’s minimum statutory withholding requirements. · Establishes GAAP for the classification of employee taxes paid when an employer withholds shares for tax withholding purposes. Cash paid by an employer when directly withholding shares for tax- withholding purposes should be classified as a financing activity. This guidance establishes GAAP related to the classification of withholding taxes in the statement of cash flows as there is no such guidance under current GAAP. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any organization in any interim or annual period. The Company is currently assessing the potential effect that the adoption of ASU 2016-09 will have on its consolidated financial statements.

Concentration of Risks (Tables)

Concentration of Risks (Tables)	6 Months Ended
	Jun. 30, 2016
Risks And Uncertainties [Abstract]
Summary of Holdings of Assets Purchased	A substantial portion of the distressed mortgage loans and REO purchased by the Company in prior years has been acquired from or through one or more subsidiaries of Citigroup Inc., as presented in the following summary: June 30, 2016 December 31, 2015 (in thousands) Mortgage loans at fair value $ 616,018 $ 855,691 REO 60,009 88,088 $ 676,027 $ 943,779 Total carrying value of mortgage loans at fair value and REO $ 2,335,455 $ 2,897,634

Transactions with Related Par42

Transactions with Related Parties (Tables)	6 Months Ended
	Jun. 30, 2016
Related Party Transactions [Abstract]
Summary of Correspondent Production Activity	Following is a summary of correspondent production activity between the Company and PLS: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Fulfillment fees earned by PLS $ 19,111 $ 15,333 $ 32,046 $ 28,199 Unpaid principal balance (“UPB”) of mortgage loans fulfilled by PLS $ 5,174,020 $ 3,579,078 $ 8,433,383 $ 6,469,210 Sourcing fees received from PLS included in Net gain on mortgage loans acquired for sale $ 2,824 $ 2,427 $ 4,773 $ 3,848 UPB of mortgage loans sold to PLS $ 9,409,399 $ 8,082,764 $ 15,905,121 $ 12,818,138 Purchases of mortgage loans acquired for sale at fair value from PLS $ 3,424 $ 2,423 $ 8,139 $ 10,828 Tax service fee paid to PLS included in Other $ 1,464 $ 1,113 $ 2,471 $ 2,002 Mortgage banking and warehouse services fees paid to PLS included in Mortgage loan servicing fees $ 1 $ — $ 2 $ — June 30, 2016 December 31, 2015 (in thousands) Mortgage loans included in Mortgage loans acquired for sale at fair value pending sale to PLS $ 619,008 $ 669,288
Summary of Mortgage Loan Servicing Fees Earned and Mortgage Servicing Rights Recaptured Income Earned	Following is a summary of mortgage loan servicing fees earned by PLS and MSR recapture income earned from PLS: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Mortgage loan servicing fees: Mortgage loans acquired for sale at fair value: Base $ 79 $ 42 $ 135 $ 68 Activity-based 172 59 287 90 251 101 422 158 Mortgage loans at fair value: Distressed mortgage loans Base 2,908 4,183 6,267 8,215 Activity-based 8,518 3,093 11,967 5,987 11,426 7,276 18,234 14,202 Mortgage loans held in VIE: Base 51 27 92 57 Activity-based — — — — 51 27 92 57 MSRs: Base 4,583 4,627 8,927 8,253 Activity-based 116 105 205 136 4,699 4,732 9,132 8,389 $ 16,427 $ 12,136 $ 27,880 $ 22,806 MSR recapture income recognized included in Net mortgage loan servicing fees $ 311 $ — $ 440 $ — Average investment in: Mortgage loans acquired for sale at fair value $ 1,422,945 $ 1,014,883 $ 1,170,720 $ 887,660 Mortgage loans at fair value: Distressed mortgage loans $ 1,791,429 $ 2,295,807 $ 1,925,605 $ 2,303,080 Mortgage loans held in a VIE $ 437,542 $ 504,309 $ 446,013 $ 514,879 Average mortgage loan servicing portfolio $ 45,647,524 $ 35,742,835 $ 44,531,795 $ 35,215,677
Summary of Base Management and Performance Incentive Fees Payable	Following is a summary of the base management and performance incentive fees payable to PCM recorded by the Company: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Base management $ 5,199 $ 5,709 $ 10,551 $ 11,439 Performance incentive — 70 — 1,343 $ 5,199 $ 5,779 $ 10,551 $ 12,782
Summary of Expenses	The Company reimburses PCM and its affiliates for other expenses, including common overhead expenses incurred on its behalf by PCM and its affiliates, in accordance with the terms of its management agreement as summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Reimbursement of: Common overhead incurred by PCM and its affiliates (1) $ 2,435 $ 2,702 $ 4,996 $ 5,431 Expenses (reimbursements) incurred on the Company’s behalf (169 ) 83 (114 ) 462 $ 2,266 $ 2,785 $ 4,882 $ 5,893 Payments and settlements during the year (2) $ 28,952 $ 24,114 $ 56,613 $ 46,866 (1) For the quarter ended June 30, 2015, in accordance with the terms of the Company’s management agreement, PCM provided the Company a discretionary waiver of $700,000 of overhead expenses that otherwise would have been allocable to the Company. On December 15, 2015, the Operating Partnership amended its management agreement to provide that the overhead costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four. (2) Payments and settlements include payments and netting settlements made pursuant to master netting agreements between the Company and PFSI for operating, investment and financing activities itemized in this Note.
Summary of Amounts Receivable and Payable to PFSI	Amounts receivable and payable to PFSI are summarized below: June 30, 2016 December 31, 2015 (in thousands) Receivable from PFSI: MSR recapture receivable $ 605 $ 781 Other 11,770 8,025 $ 12,375 $ 8,806 Payable to PFSI: Servicing fees $ 9,154 $ 3,682 Management fees 5,200 5,670 Correspondent production fees 2,567 2,729 Interest on Note payable to PFSI 1,042 412 Conditional Reimbursement 900 900 Allocated expenses 847 390 Fulfillment fees 1,890 1,082 Expenses paid by PFSI on PMT’s behalf 454 4,100 $ 22,054 $ 18,965
Summary of Investing Activity	Following is a summary of investing activities between the Company and PFSI: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) ESS: Purchases $ — $ 140,875 $ — $ 187,287 Received pursuant to a recapture agreement $ 1,690 $ 1,319 $ 3,601 $ 2,565 Repayments and sales $ 17,400 $ 18,352 $ 97,326 $ 31,083 Interest income $ 5,713 $ 5,818 $ 12,728 $ 9,570 Net loss included in Net (loss) gain on investments : Valuation changes $ (17,428 ) $ 7,133 $ (36,877 ) $ (403 ) Recapture income 1,604 1,456 3,426 2,745 $ (15,824 ) $ 8,589 $ (33,451 ) $ 2,342
Summary of Financing Activities	Following is a summary of financing activities between the Company and PFSI: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Note payable—Interest expense $ 2,222 $ 533 $ 3,824 $ 533 Conditional Reimbursements paid to PCM $ — $ 73 $ — $ 230

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Summary of Basic and Diluted Earnings per Share	The following table summarizes the basic and diluted earnings per share calculations: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands except per share amounts) Basic (loss) earnings per share: Net (loss) income $ (5,267 ) $ 28,071 $ 9,229 $ 35,579 Effect of participating securities—share-based compensation awards (307 ) (438 ) (718 ) (1,015 ) Net (loss) income attributable to common shareholders $ (5,574 ) $ 27,633 $ 8,511 $ 34,564 Diluted (loss) earnings per share: Net (loss) income attributable to common shareholders $ (5,574 ) $ 27,633 $ 8,511 $ 34,564 Effect of participating securities—share-based compensation awards — — — — Interest on Exchangeable Notes, net of income taxes — 2,121 — — Net (loss) income attributable to diluted shareholders $ (5,574 ) $ 29,754 $ 8,511 $ 34,564 Weighted-average basic shares outstanding 68,446 74,683 70,165 74,618 Potentially dilutive securities: Shares issuable under share-based compensation plan — 330 — — Shares issuable pursuant to exchange of the Exchangeable Notes — 8,467 — 379 Diluted weighted-average number of shares outstanding 68,446 83,480 70,165 74,997 Basic (loss) earnings per share $ (0.08 ) $ 0.37 $ 0.12 $ 0.46 Diluted (loss) earnings per share $ (0.08 ) $ 0.36 $ 0.12 $ 0.46
Summary of Common Shares Excluded from Computation of Diluted Earnings Per Share	Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Shares issuable under share-based compensation awards 766 — 766 — Shares issuable pursuant to exchange of the Exchangeable Notes 8,467 — 8,467 8,467

Loan Sales and Variable Inter44

Loan Sales and Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Summary of Cash Flows between Company and Transferees in Transfers Accounted for Sales	The following table summarizes cash flows between the Company and transferees in transfers of mortgage loans that are accounted for as sales where the Company maintains continuing involvement with the mortgage loans, as well as UPB information at period end: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Cash flows: Proceeds from sales $ 5,231,974 $ 3,063,397 $ 8,465,753 $ 5,707,641 Mortgage loan servicing fees received (1) $ 29,179 $ 22,738 $ 56,755 $ 44,641 June 30, 2016 December 31, 2015 (in thousands) UPB of mortgage loans outstanding $ 47,087,431 $ 42,300,338 Delinquent mortgage loans: 30-89 days delinquent $ 192,175 $ 175,599 90 or more days delinquent: Not in foreclosure or bankruptcy 39,377 38,669 In foreclosure or bankruptcy 44,267 31,386 83,644 70,055 $ 275,819 $ 245,654 (1) Net of guarantee fees.
Summary of Credit Risk Transfer Agreements	Following is a summary of the CRT Agreements: Quarter Ended June 30, 2016 Six Months Ended June 30, 2016 (in thousands) During the period: UPB of mortgage loans transferred and sold under CRT Agreements $ 3,162,746 $ 5,084,744 Deposits of cash securing CRT Agreements $ 126,031 $ 192,737 Gains (losses) recognized on CRT Agreements included in Net (loss) gain on investments Realized $ 3,859 $ 6,395 Resulting from valuation changes 3,905 (2,774 ) $ 7,764 $ 3,621 Payments made to settle losses $ — $ — June 30, 2016 December 31, 2015 (in thousands) UPB of mortgage loans subject to credit guarantee obligation $ 8,976,961 $ 4,546,265 Delinquency status (in UPB): Current—89 days delinquent $ 8,976,093 $ 4,546,265 90 or more days delinquent $ 868 $ — Carrying value of CRT Agreements: Net derivative included in Derivative assets $ — $ 593 Deposits securing credit risk transfer agreements $ 338,812 $ 147,000 Interest-only security payable at fair value $ 1,663 $ — Net derivative included in Derivative liabilities $ 199 $ —

Netting of Financial Instrume45

Netting of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Offsetting [Abstract]
Summary of Offsetting of Derivative Assets	Following is a summary of net derivative assets. As discussed above, all derivatives with the exception of IRLCs and CRT Agreements are subject to master netting arrangements. June 30, 2016 December 31, 2015 Gross amounts of recognized assets Gross amounts offset in the consolidated balance sheet Net amounts of assets presented in the consolidated balance sheet Gross amounts of recognized assets Gross amounts offset in the consolidated balance sheet Net amounts of assets presented in the consolidated balance sheet (in thousands) Derivative assets Not subject to master netting arrangements: Interest rate lock commitments $ 16,803 $ — $ 16,803 $ 4,983 $ — $ 4,983 CRT Agreements — — — 593 — 593 16,803 — 16,803 5,576 — 5,576 Subject to master netting arrangements: MBS put options 593 — 593 93 — 93 Forward purchase contracts 35,768 — 35,768 2,444 — 2,444 Forward sale contracts 43 — 43 2,604 — 2,604 Put options on interest rate futures 453 — 453 1,512 — 1,512 Call options on interest rate futures 3,379 — 3,379 1,156 — 1,156 Netting — (22,032 ) (22,032 ) — (3,300 ) (3,300 ) 40,236 (22,032 ) 18,204 7,809 (3,300 ) 4,509 $ 57,039 $ (22,032 ) $ 35,007 $ 13,385 $ (3,300 ) $ 10,085
Summary of Derivative Assets and Collateral Held by Counterparty	The following table summarizes by significant counterparty the amount of derivative asset positions after considering master netting arrangements and financial instruments or cash pledged that do not meet the accounting guidance qualifying for setoff accounting. June 30, 2016 December 31, 2015 Gross amounts not offset in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amount of assets presented in the consolidated balance sheet Financial instruments Cash collateral received Net amount Net amount of assets presented in the consolidated balance sheet Financial instruments Cash collateral received Net amount (in thousands) Interest rate lock commitments $ 16,803 $ — $ — $ 16,803 $ 4,983 $ — $ — $ 4,983 Fannie Mae Capital Markets 12,439 — — 12,439 — — — — Jefferies Group LLC 3,015 — — 3,015 541 — — 541 RJ O’Brien & Associates, LLC 867 — — 867 1,672 — — 1,672 Morgan Stanley Bank, N.A. 863 — — 863 464 — — 464 Royal Bank of Canada 397 — — 397 400 — — 400 Nomura Securities International, Inc. 274 — — 274 119 — — 119 Barclays Capital — — — — 796 — — 796 Ally Financial — — — — 209 — — 209 Other 349 — — 349 901 — — 901 $ 35,007 $ — $ — $ 35,007 $ 10,085 $ — $ — $ 10,085
Schedule of Offsetting of Derivative Liabilities and Financial Liabilities	Following is a summary of net derivative liabilities and assets sold under agreements to repurchase. As discussed above, all derivative liabilities with the exception of IRLCs and CRT Agreements are subject to master netting arrangements. Assets sold under agreements to repurchase do not qualify for setoff accounting. June 30, 2016 December 31, 2015 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheet Net amounts of liabilities presented in the consolidated balance sheet Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheet Net amounts of liabilities presented in the consolidated balance sheet (in thousands) Derivative liabilities Not subject to master netting arrangements: Interest rate lock commitments $ 45 $ — $ 45 $ 337 $ — $ 337 CRT Agreements 199 — 199 — — — 244 — 244 337 — 337 Subject to master netting arrangements: Forward purchase contracts 19 — 19 3,774 — 3,774 Forward sales contracts 35,466 — 35,466 2,680 — 2,680 Put options on interest rate futures 79 — 79 39 — 39 Call options on interest rate futures — — — 305 — 305 Netting — (31,914 ) (31,914 ) — (3,978 ) (3,978 ) 35,564 (31,914 ) 3,650 6,798 (3,978 ) 2,820 35,808 (31,914 ) 3,894 7,135 (3,978 ) 3,157 Assets sold under agreements to repurchase: UPB 3,276,854 — 3,276,854 3,130,328 — 3,130,328 Unamortized debt issuance costs (1,163 ) — (1,163 ) (1,548 ) — (1,548 ) 3,275,691 — 3,275,691 3,128,780 — 3,128,780 $ 3,311,499 $ (31,914 ) $ 3,279,585 $ 3,135,915 $ (3,978 ) $ 3,131,937
Summary of Derivative Liabilities, Financial Liabilities and Collateral Pledged by Counterparty	The following table summarizes by significant counterparty the amount of derivative liabilities and assets sold under agreements to repurchase after considering master netting arrangements and financial instruments or cash pledged that do not meet the accounting guidance qualifying for setoff accounting. All assets sold under agreements to repurchase represent sufficient collateral or exceed the liability amount recorded on the consolidated balance sheet. June 30, 2016 December 31, 2015 Gross amounts not offset in the consolidated balance sheet Gross amounts not offset in the consolidated balance sheet Net amount of liabilities presented in the consolidated balance sheet Financial instruments Cash collateral pledged Net amount Net amount of liabilities presented in the consolidated balance sheet Financial instruments Cash collateral pledged Net amount (in thousands) Interest rate lock commitments $ 45 $ — $ — $ 45 $ 337 $ — $ — $ 337 CRT Agreements 199 — — 199 — — — — Credit Suisse First Boston Mortgage Capital LLC 972,451 (972,003 ) — 448 893,947 (893,854 ) — 93 Bank of America, N.A. 677,186 (676,971 ) — 215 538,755 (538,515 ) — 240 Citibank 559,029 (558,346 ) — 683 817,089 (816,699 ) — 390 JPMorgan Chase & Co. 488,624 (488,624 ) — — 467,427 (467,145 ) — 282 Morgan Stanley Bank, N.A. 208,488 (208,488 ) — — 214,086 (214,086 ) — — Daiwa Capital Markets 207,908 (207,908 ) — — 165,480 (165,480 ) — — Wells Fargo, N.A. 66,458 (66,384 ) — 74 Barclays Capital 50,528 (50,528 ) — — 24,346 (24,346 ) — — BNP Paribas 47,602 (47,602 ) — — 10,203 (10,203 ) — — Bank of Oklahoma 646 — — 646 — — — — Raymond James and Associates 340 — — 340 — — — — Deutsche Bank 263 — — 263 — — — — Goldman Sachs 197 — — 197 819 — — 819 Fannie Mae Capital Markets — — — — 924 — — 924 Other 784 — — 784 72 — — 72 Unamortized debt issuance costs (1,163 ) 1,163 — — (1,548 ) 1,548 — — $ 3,279,585 $ (3,275,691 ) $ — $ 3,894 $ 3,131,937 $ (3,128,780 ) $ — $ 3,157

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Summary of Financial Statement Items Measured at Fair Value on Recurring Basis	Following is a summary of financial statement items that are measured at fair value on a recurring basis: June 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Assets: Short-term investments $ 16,877 $ — $ — $ 16,877 Mortgage-backed securities at fair value — 531,612 — 531,612 Mortgage loans acquired for sale at fair value — 1,461,029 — 1,461,029 Mortgage loans at fair value — 427,091 1,608,906 2,035,997 Excess servicing spread purchased from PFSI — — 294,551 294,551 Derivative assets: Interest rate lock commitments — — 16,803 16,803 MBS put options — 593 — 593 Forward purchase contracts — 35,768 — 35,768 Forward sales contracts — 43 — 43 Put options on interest rate futures 453 — — 453 Call options on interest rate futures 3,379 — — 3,379 Total derivative assets before netting 3,832 36,404 16,803 57,039 Netting — — — (22,032 ) Total derivative assets after netting 3,832 36,404 16,803 35,007 Mortgage servicing rights at fair value — — 57,977 57,977 $ 20,709 $ 2,456,136 $ 1,978,237 $ 4,433,050 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 325,939 $ — $ 325,939 Interest-only security payable at fair value — — 1,663 1,663 Derivative liabilities: Interest rate lock commitments — — 45 45 CRT Agreements — — 199 199 Put options on interest rate futures 79 — — 79 Forward purchase contracts — 19 — 19 Forward sales contracts — 35,466 — 35,466 Total derivative liabilities before netting 79 35,485 244 35,808 Netting — — — (31,914 ) Total derivative liabilities after netting 79 35,485 244 3,894 $ 79 $ 361,424 $ 1,907 $ 331,496 December 31, 2015 Level 1 Level 2 Level 3 Total (in thousands) Assets: Short-term investments $ 41,865 $ — $ — $ 41,865 Mortgage-backed securities at fair value — 322,473 — 322,473 Mortgage loans acquired for sale at fair value — 1,283,795 — 1,283,795 Mortgage loans at fair value — 455,394 2,100,394 2,555,788 Excess servicing spread purchased from PFSI — — 412,425 412,425 Derivative assets: Interest rate lock commitments — — 4,983 4,983 CRT Agreements — — 593 593 MBS put options — 93 — 93 Forward purchase contracts — 2,444 — 2,444 Forward sales contracts — 2,604 — 2,604 Put options on interest rate futures 1,512 — — 1,512 Call options on interest rate futures 1,156 — — 1,156 Total derivative assets 2,668 5,141 5,576 13,385 Netting — — — (3,300 ) Total derivative assets after netting 2,668 5,141 5,576 10,085 Mortgage servicing rights at fair value — — 66,584 66,584 $ 44,533 $ 2,066,803 $ 2,584,979 $ 4,693,015 Liabilities: Asset-backed financing of the VIE at fair value $ — $ 247,690 $ — $ 247,690 Derivative liabilities: Interest rate lock commitments — — 337 337 Put options on interest rate futures 39 — — 39 Call options on interest rate futures 305 — — 305 Forward purchase contracts — 3,774 — 3,774 Forward sales contracts — 2,680 — 2,680 Total derivative liabilities 344 6,454 337 7,135 Netting — — — (3,978 ) Total derivative liabilities after netting 344 6,454 337 3,157 $ 344 $ 254,144 $ 337 $ 250,847
Summary of Changes in Items Measured Using Level 3 Inputs on Recurring Basis	The following is a summary of changes in items measured using Level 3 inputs on a recurring basis: Quarter ended June 30, 2016 Mortgage Excess Interest Mortgage Interest- only loans servicing rate lock CRT servicing security at fair value spread commitments (1) Agreements (1) rights payable Total (in thousands) Balance, March 31, 2016 $ 2,047,563 $ 321,976 $ 9,335 $ (4,218 ) $ 61,071 $ 675 $ 2,436,402 Purchases and issuances — — — — — 1,454 1,454 Repayments and sales (387,661 ) (17,400 ) — — — — (405,061 ) Capitalization of interest 16,421 5,713 — — — — 22,134 ESS received pursuant to a recapture agreement with PFSI — 1,690 — — — — 1,690 Interest rate lock commitments issued, net — — 17,036 — — — 17,036 Servicing received as proceeds from sales of mortgage loans — — — — 1,847 — 1,847 Proceeds from CRT Agreements — — — (3,859 ) — — (3,859 ) Changes in fair value included in income arising from: Changes in instrument- specific credit risk (22,287 ) — — — — — (22,287 ) Other factors 8,824 (17,428 ) 27,076 7,878 (4,941 ) (466 ) 20,943 (13,463 ) (17,428 ) 27,076 7,878 (4,941 ) (466 ) (1,344 ) Transfers of mortgage loans to REO and real estate held for investment (53,954 ) — — — — — (53,954 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (36,690 ) — — — (36,690 ) Balance, June 30, 2016 $ 1,608,906 $ 294,551 $ 16,757 $ (199 ) $ 57,977 $ 1,663 $ 1,979,655 Changes in fair value recognized during the period relating to assets still held at June 30, 2016 $ (5,335 ) $ (17,428 ) $ 16,757 $ 7,878 $ (4,941 ) (466 ) $ (3,535 ) (1) For the purpose of this table, the IRLC and CRT Agreement asset and liability positions are shown net. Quarter ended June 30, 2015 Mortgage Excess Interest Mortgage loans servicing rate lock servicing at fair value spread commitments (1) rights Total (in thousands) Balance, March 31, 2015 $ 2,343,382 $ 222,309 $ 8,214 $ 49,448 $ 2,623,353 Purchases — 140,874 — — 140,874 Repayments and sales (68,190 ) (18,352 ) — — (86,542 ) Capitalization of interest 9,922 — — — 9,922 Accrual of interest — 5,819 — — 5,819 ESS received pursuant to a recapture agreement with PFSI — 1,319 — — 1,319 Interest rate lock commitments issued, net — — 11,683 — 11,683 Servicing received as proceeds from sales of mortgage loans — — — 1,588 1,588 Changes in fair value included in income arising from: Changes in instrument-specific credit risk 7,489 — — — 7,489 Other factors 22,579 7,133 (23,411 ) 6,307 12,608 30,068 7,133 (23,411 ) 6,307 20,097 Transfers of mortgage loans to REO (68,238 ) — — — (68,238 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — 3,247 — 3,247 Balance, June 31, 2015 $ 2,246,944 $ 359,102 $ (267 ) $ 57,343 $ 2,663,122 Changes in fair value recognized during the period relating to assets still held at June 30, 2015 $ 32,807 $ 7,133 $ (267 ) $ 6,307 $ 45,980 (1) For the purpose of this table, the IRLC asset and liability positions are shown net. Six months ended June 30, 2016 Mortgage Excess Interest Mortgage Interest- only loans servicing rate lock CRT servicing security at fair value spread commitments (1) Agreements (1) rights payable Total (in thousands) Balance, December 31, 2015 $ 2,100,394 $ 412,425 $ 4,646 $ 593 $ 66,584 $ — $ 2,584,642 Purchases and issuances — — — 682 2,602 2,136 5,420 Repayments and sales (419,726 ) (97,326 ) — — — — (517,052 ) Capitalization of interest 39,715 12,728 — — — — 52,443 ESS received pursuant to a recapture agreement with PFSI — 3,601 — — — — 3,601 Interest rate lock commitments issued, net — — 27,733 — — — 27,733 Servicing received as proceeds from sales of mortgage loans — — — — 5,147 — 5,147 Proceeds from CRT Agreements — — — (6,395 ) — — (6,395 ) Changes in fair value included in income arising from: Changes in instrument- specific credit risk (19,004 ) — — — — — (19,004 ) Other factors 19,936 (36,877 ) 47,742 4,921 (16,356 ) (473 ) 18,893 932 (36,877 ) 47,742 4,921 (16,356 ) (473 ) (111 ) Transfers of mortgage loans to REO and real estate held for investment (112,409 ) — — — — — (112,409 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (63,364 ) — — — (63,364 ) Balance, June 30, 2016 $ 1,608,906 $ 294,551 $ 16,757 $ (199 ) $ 57,977 $ 1,663 $ 1,979,655 Changes in fair value recognized during the period relating to assets still held at June 30, 2016 $ 654 $ (29,667 ) $ 16,757 $ 4,921 $ (16,356 ) (473 ) $ (24,164 ) (1) For the purpose of this table, the IRLC and CRT Agreement asset and liability positions are shown net. Six months ended June 30, 2015 Mortgage Excess Interest Mortgage loans servicing rate lock servicing at fair value spread commitments (1) rights Total (in thousands) Balance, December 31, 2014 $ 2,199,583 $ 191,166 $ 5,661 $ 57,358 $ 2,453,768 Purchases 241,981 187,287 — — 429,268 Repayments and sales (114,070 ) (31,083 ) — — (145,153 ) Capitalization of interest 20,130 — — — 20,130 Accrual of interest — 9,570 — — 9,570 ESS received pursuant to a recapture agreement with PFSI — 2,565 — — 2,565 Interest rate lock commitments issued, net — — 31,083 — 31,083 Servicing received as proceeds from sales of mortgage loans — — — 3,495 3,495 Changes in fair value included in income arising from: Changes in instrument-specific credit risk 19,057 — — — 19,057 Other factors 28,196 (403 ) (23,399 ) (3,510 ) 884 47,253 (403 ) (23,399 ) (3,510 ) 19,941 Transfers of mortgage loans to REO (147,933 ) — — — (147,933 ) Transfers of interest rate lock commitments to mortgage loans acquired for sale — — (13,612 ) — (13,612 ) Balance, June 31, 2015 $ 2,246,944 $ 359,102 $ (267 ) $ 57,343 $ 2,663,122 Changes in fair value recognized during the period relating to assets still held at June 30, 2015 $ 54,574 $ (403 ) $ (267 ) $ (3,510 ) $ 50,394
Fair Values and Related Principal Amounts Due upon Maturity of Mortgage Loans Accounted for Under Fair Value Option	Following are the fair values and related principal amounts due upon maturity of mortgage loans accounted for under the fair value option (including mortgage loans acquired for sale, mortgage loans at fair value and mortgage loans held in a consolidated VIE): June 30, 2016 December 31, 2015 Fair value Principal amount due upon maturity Difference Fair value Principal amount due upon maturity Difference (in thousands) Mortgage loans acquired for sale at fair value: Current through 89 days delinquent $ 1,460,326 $ 1,388,201 $ 72,125 $ 1,283,275 $ 1,235,433 $ 47,842 90 or more days delinquent Not in foreclosure 415 461 (46 ) 304 333 (29 ) In foreclosure 288 338 (50 ) 216 253 (37 ) 703 799 (96 ) 520 586 (66 ) $ 1,461,029 $ 1,389,000 $ 72,029 $ 1,283,795 $ 1,236,019 $ 47,776 Mortgage loans at fair value: Mortgage loans held in a consolidated VIE Current through 89 days delinquent $ 427,091 $ 416,195 $ 10,896 $ 455,394 $ 454,935 $ 459 90 or more days delinquent Not in foreclosure — — — — — — In foreclosure — — — — — — — — — — — — 427,091 416,195 10,896 455,394 454,935 459 Other mortgage loans at fair value: Current through 89 days delinquent 656,762 873,422 (216,660 ) 877,438 1,134,560 (257,122 ) 90 or more days delinquent Not in foreclosure 363,328 510,475 (147,147 ) 459,060 640,343 (181,283 ) In foreclosure 588,816 803,754 (214,938 ) 763,896 1,062,205 (298,309 ) 952,144 1,314,229 (362,085 ) 1,222,956 1,702,548 (479,592 ) 1,608,906 2,187,651 (578,745 ) 2,100,394 2,837,108 (736,714 ) $ 2,035,997 $ 2,603,846 $ (567,849 ) $ 2,555,788 $ 3,292,043 $ (736,255 )
Summary of Changes in Fair Value Included in Current Period Income	Following are the changes in fair value included in current period income by consolidated statement of operations line item for financial statement items accounted for under the fair value option: Quarter ended June 30, 2016 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (750 ) 4,332 — 3,582 Mortgage loans acquired for sale at fair value 47,003 — — — 47,003 Mortgage loans at fair value — 865 (13,511 ) — (12,646 ) ESS at fair value — — (17,428 ) — (17,428 ) MSRs at fair value — — — (4,941 ) (4,941 ) $ 47,003 $ 115 $ (26,607 ) $ (4,941 ) $ 15,570 Liabilities: Asset-backed financing of a VIE at fair value $ — $ (781 ) $ 890 $ — $ 109 $ — $ (781 ) $ 890 $ — $ 109 Quarter ended June 30, 2015 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (23 ) (6,702 ) — (6,725 ) Mortgage loans acquired for sale at fair value (5,017 ) — — — (5,017 ) Mortgage loans at fair value — (310 ) 17,991 — 17,681 ESS at fair value — — 8,589 — 8,589 MSRs at fair value — — — 6,306 6,306 $ (5,017 ) $ (333 ) $ 19,878 $ 6,306 $ 20,834 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 51 $ 3,991 $ — $ 4,042 $ — $ 51 $ 3,991 $ — $ 4,042 Six months ended June 30, 2016 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — (738 ) 9,431 — 8,693 Mortgage loans acquired for sale at fair value 89,008 — — — 89,008 Mortgage loans at fair value — 2,094 9,279 — 11,373 ESS at fair value — — (36,877 ) — (36,877 ) MSRs at fair value — — — (16,356 ) (16,356 ) $ 89,008 $ 1,356 $ (18,167 ) $ (16,356 ) $ 55,841 Liabilities: Asset-backed financing of a VIE at fair value $ — $ 536 $ (8,963 ) $ — $ (8,427 ) $ — $ 536 $ (8,963 ) $ — $ (8,427 ) Six months ended June 30, 2015 Net gain on Net mortgage mortgage loans Net Net gain loan acquired interest on servicing for sale income investments fees Total (in thousands) Assets: Short-term investments $ — $ — $ — $ — $ — Mortgage-backed securities at fair value — 63 (5,186 ) — (5,123 ) Mortgage loans acquired for sale at fair value 18,064 — — — 18,064 Mortgage loans at fair value — 179 36,977 — 37,156 ESS at fair value — — 2,342 — 2,342 MSRs at fair value — — — (3,510 ) (3,510 ) $ 18,064 $ 242 $ 34,133 $ (3,510 ) $ 48,929 Liabilities: Asset-backed financing of a VIE at fair value $ — $ (122 ) $ 3,222 $ — $ 3,100 $ — $ (122 ) $ 3,222 $ — $ 3,100
Summary of Financial Statement Items Re-measured at Fair Value on Nonrecurring Basis	Following is a summary of financial statement items that were re-measured at fair value on a nonrecurring basis during the periods presented: June 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Real estate acquired in settlement of loans $ — $ — $ 136,062 $ 136,062 MSRs at lower of amortized cost or fair value — — 332,354 332,354 $ — $ — $ 468,416 $ 468,416 December 31, 2015 Level 1 Level 2 Level 3 Total (in thousands) Real estate acquired in settlement of loans $ — $ — $ 173,662 $ 173,662 MSRs at lower of amortized cost or fair value — — 145,187 145,187 $ — $ — $ 318,849 $ 318,849
Summary of Changes in Fair Value Recognized in Assets that Measured at Fair Value on a Nonrecurring Basis	The following table summarizes the fair value changes recognized during the period on assets held at period end that were measured at fair value on a nonrecurring basis: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Real estate asset acquired in settlement of loans $ (5,836 ) $ (6,491 ) $ (11,106 ) $ (13,800 ) MSRs at lower of amortized cost or fair value (23,170 ) 7,082 (40,876 ) 703 $ (29,006 ) $ 591 $ (51,982 ) $ (13,097 )
Quantitative Summary of Key Inputs Used in Valuation of Mortgage Loans at Fair Value	Following is a quantitative summary of key inputs used in the valuation of mortgage loans at fair value: Key inputs June 30, 2016 December 31, 2015 Discount rate Range 2.5% – 15.0% 2.5% – 15.0% Weighted average 6.7% 7.1% Twelve-month projected housing price index change Range 2.7% – 5.2% 1.5% – 5.1% Weighted average 4.0% 3.6% Prepayment speed (1) Range 0.1% – 13.7% 0.1% – 9.6% Weighted average 3.9% 3.7% Total prepayment speed (2) Range 0.7% – 25.4% 0.5% – 27.2% Weighted average 19.0% 19.6% (1) Prepayment speed is measured using Life Voluntary Conditional Prepayment Rate (“CPR”). (2) Total prepayment speed is measured using Life Total CPR.
Summary of Key Inputs Used in Determining Fair Value of ESS	Following are the key inputs used in determining the fair value of ESS: Key inputs June 30, 2016 December 31, 2015 UPB of underlying mortgage loans (in thousands) $ 36,151,940 $51,966,405 Average servicing fee rate (in basis points) 34 32 Average ESS rate (in basis points) 19 17 Pricing spread (1) Range 4.7% – 5.9% 4.8% - 6.5% Weighted average 5.5% 5.7% Life (in years) Range 1.6 - 8.9 1.4 - 9.0 Weighted average 6.2 6.9 Annual total prepayment speed (2) Range 6.8% – 37.3% 5.2% - 52.4% Weighted average 12.5% 9.6% (1) Pricing spread represents a margin that is applied to a reference interest rate’s forward rate curve to develop periodic discount rates. The Company applies a pricing spread to the United States Dollar London Interbank Offered Rate (“LIBOR”) curve for purposes of discounting cash flows relating to ESS. (2) Prepayment speed is measured using Life Total CPR.
Quantitative Summary of Key Unobservable Inputs Used in Valuation of Interest Rate Lock Commitments	Following is a quantitative summary of key unobservable inputs used in the valuation of IRLCs: Key inputs June 30, 2016 December 31, 2015 Pull-through rate Range 74.9% – 100.0% 60.2% - 100.0% Weighted average 88.0% 92.4% MSR value expressed as: Servicing fee multiple Range 1.8 - 5.7 2.1 - 6.2 Weighted average 4.5 4.9 Percentage of UPB Range 0.0% – 1.4% 0.5% - 3.8% Weighted average 1.1% 1.2%
Key Assumptions Used in Determining Fair Value of MSRs at Time of Initial Recognition	Following are the key inputs used in determining the fair value of MSRs at the time of initial recognition: Quarter ended June 30, 2016 2015 Amortized cost Fair value Amortized cost Fair value (MSR recognized and UPB of underlying mortgage loan amounts in thousands) MSR recognized $ 58,262 $ 1,847 $ 30,587 $ 1,589 Key inputs UPB of underlying mortgage loans $ 4,846,994 $ 200,495 $ 3,346,010 $ 176,404 Weighted-average annual servicing fee rate (in basis points) 25 25 25 25 Pricing spread (1) Range 7.2% – 12.6% 7.2% – 7.6% 6.5% –13.0% 9.0% – 16.3% Weighted average 7.4% 7.3 8.1% 10.1% Life (in years) Range 1.5 - 12.2 2.0 - 9.3 2.6 – 7.3 2.3 – 7.3 Weighted average 7.6 6.0 6.7 6.8 Annual total prepayment speed (2) Range 3.4% – 47.4% 7.3% – 38.0% 7.6% – 28.6% 8.3% – 34.2% Weighted average 9.4% 14.2% 8.3% 10.6% Annual per-loan cost of servicing Range $68 – $79 $68 – $79 $62 – $62 $62 – $62 Weighted average $76 $74 $62 $62 (1) The Company applies a pricing spread to the United States Dollar LIBOR curve for purposes of discounting cash flows relating to MSRs acquired as proceeds from the sale of mortgage loans. (2) Prepayment speed is measured using Life Total CPR. Six months ended June 30, 2016 2015 Amortized cost Fair value Amortized cost Fair value (MSR recognized and UPB of underlying mortgage loan amounts in thousands) MSR recognized $ 91,124 $ 5,147 $ 56,141 $ 3,495 Key inputs UPB of underlying mortgage loans $ 7,606,539 $ 527,519 $ 5,628,766 $ 400,057 Weighted-average annual servicing fee rate (in basis points) 25 26 26 26 Pricing spread (1) Range 7.2% – 12.6% 7.2% – 7.6% 6.5% –17.5% 9.0% – 16.3% Weighted average 7.3% 7.3% 8.3% 10.6% Life (in years) Range 1.4 - 12.3 2.0 - 9.4 1.3 – 7.7 2.3 – 7.3 Weighted average 7.4 5.7 6.6 6.3 Annual total prepayment speed (2) Range 3.4% – 49.2% 7.2% – 38.0% 7.6% – 51.0% 8.3% – 34.2% Weighted average 9.8% 15.1% 8.7% 12.3% Annual per-loan cost of servicing Range $68 – $79 $68 – $79 $62 – $134 $62 – $62 Weighted average $73 $71 $63 $62 (1) The Company applies a pricing spread to the United States Dollar LIBOR curve for purposes of discounting cash flows relating to MSRs acquired as proceeds from the sale of mortgage loans. (2) Prepayment speed is measured using Life Total CPR.
Quantitative Summary of Key Assumptions Used in Valuation of MSRs as of Dates Presented, and Effect on Estimated Fair Value from Adverse Changes in Those Inputs	Following is a quantitative summary of key inputs used in the valuation of MSRs as of the dates presented, and the effect on the fair value from adverse changes in those inputs: June 30, 2016 December 31, 2015 Amortized cost Fair value Amortized cost Fair value (Carrying value, UPB of underlying mortgage loans and effect on fair value amounts in thousands) Carrying value $ 413,481 $ 57,977 $ 393,157 $ 66,584 Key inputs: UPB of underlying mortgage loans $ 40,590,719 $ 6,496,712 $ 35,841,654 $ 6,458,684 Weighted-average annual servicing fee rate (in basis points) 25 25 26 25 Weighted-average note interest rate 3.9% 4.7% 3.9% 4.7% Pricing spread (1) Range 7.6% – 13.1% 7.6% – 12.6% 7.2% – 10.7% 7.2% – 10.2% Weighted average 7.6% 7.6 7.3% 7.2% Effect on fair value of (2): 5% adverse change $(6,312) $(854) $(6,411) $(944) 10% adverse change $(12,441) $(1,683) $(12,635) $(1,862) 20% adverse change $(24,175) $(3,271) $(24,553) $(3,621) Weighted average life (in years) Range 3.0 - 6.8 3.2 - 5.7 1.3 - 7.7 2.5 - 6.1 Weighted average 6.5 5.7 7.2 6.1 Prepayment speed (3) Range 8.7% – 26.8% 8.3% – 21.9% 8.1% – 51.5% 9.2% – 32.5% Weighted average 10.8% 14.3% 9.6% 13.2% Effect on fair value of (2): 5% adverse change $(9,341) $(1,739) $(8,159) $(1,793) 10% adverse change $(18,315) $(3,395) $(16,024) $(3,502) 20% adverse change $(35,243) $(6,475) $(30,938) $(6,692) Annual per-loan cost of servicing Range $77 – $78 $77 – $78 $68 – $68 $68 – $68 Weighted average $78 $78 $68 $68 Effect on fair value of (2): 5% adverse change $(3,334) $(519) $(2,742) $(470) 10% adverse change $(6,669) $(1,038) $(5,484) $(940) 20% adverse change $(13,337) $(2,076) $(10,968) $(1,880) (1) The Company applies a pricing spread to the United States Dollar LIBOR curve for purposes of discounting cash flows relating to MSRs. (2) For MSRs carried at fair value, an adverse change in one of the above-mentioned key inputs is expected to result in a reduction in fair value which will be recognized in results of operations. For MSRs carried at lower of amortized cost or fair value, an adverse change in one of the above-mentioned key inputs may result in recognition of MSR impairment. The extent of the recognized MSR impairment will depend on the relationship of fair value to the carrying value of such MSRs. (3) Prepayment speed is measured using Life Total CPR.

Mortgage Loans Acquired for S47

Mortgage Loans Acquired for Sale at Fair Value (Tables)	6 Months Ended
	Jun. 30, 2016
Mortgage Loans On Real Estate [Abstract]
Summary of Distribution of Company's Mortgage Loans Acquired for Sale at Fair Value	Mortgage loans acquired for sale at fair value is comprised of recently originated mortgage loans purchased by the Company for resale. Following is a summary of the distribution of the Company’s mortgage loans acquired for sale at fair value: June 30, 2016 December 31, 2015 Loan type Fair value Unpaid principal balance Fair value Unpaid principal balance (in thousands) Conventional: Agency-eligible $ 816,248 $ 776,828 $ 540,947 $ 525,192 Jumbo 8,088 8,009 54,613 54,096 Held for sale to PLS — Government insured or guaranteed 619,008 585,919 669,288 637,666 Commercial real estate 12,132 12,263 14,590 14,461 Mortgage loans repurchased pursuant to representations and warranties 5,553 5,980 4,357 4,604 $ 1,461,029 $ 1,388,999 $ 1,283,795 $ 1,236,019 Mortgage loans pledged to secure: Assets sold under agreements to repurchase $ 1,341,459 $ 1,204,462 Mortgage loan participation and sale agreements $ 100,497 $ — Federal Home Loan Bank (“FHLB”) advances $ — $ 63,993

Derivative Financial Instrume48

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Derivative Assets and Liabilities and Related Margin Deposits Recorded within Derivative Assets and Derivative Liabilities	The Company had the following derivative assets and liabilities and related margin deposits recorded within Derivative assets Derivative liabilities June 30, 2016 December 31, 2015 Fair value Fair value Notional Derivative Derivative Notional Derivative Derivative Instrument amount assets liabilities amount assets liabilities (in thousands) Derivatives not designated as hedging instruments: Free-standing derivatives: Interest rate lock commitments 1,658,813 $ 16,803 $ 45 970,067 $ 4,983 $ 337 Used for hedging purposes: Forward sale contracts 4,347,526 43 35,466 2,450,642 2,604 2,680 Forward purchase contracts 4,190,349 35,768 19 2,469,550 2,444 3,774 MBS call options 1,525,000 593 — 375,000 93 — Swap futures 12,500 — — — — — Eurodollar future sales contracts 1,543,000 — — 1,755,000 — — Call options on interest rate futures 525,000 3,379 — 50,000 1,156 305 Put options on interest rate futures 425,000 453 79 1,600,000 1,512 39 CRT Agreements 8,976,961 — 199 4,546,265 593 — Total derivative instruments before netting 57,039 35,808 13,385 7,135 Netting (22,032 ) (31,914 ) (3,300 ) (3,978 ) $ 35,007 $ 3,894 $ 10,085 $ 3,157 Margin deposits with derivatives counterparties $ 9,882 $ 678
Net Gains (Losses) Recognized on Derivative Financial Instruments	Following are the net gains (losses) recognized by the Company on derivative financial instruments and the consolidated statements of operations line items where such gains and losses are included: Quarter ended June 30, Six months ended June 30, Income statement line 2016 2015 2016 2015 (in thousands) Interest rate lock commitments Net gain on mortgage loans acquired for sale $ 44,112 $ (11,728 ) $ 75,475 $ 7,684 Hedged item: Interest rate lock commitments and mortgage loans acquired for sale Net gain on mortgage loans acquired for sale $ (29,210 ) $ 25,566 $ (59,882 ) $ 10,455 Mortgage servicing rights Net loan servicing fees $ 27,433 $ (16,270 ) $ 57,394 $ (5,193 ) Fixed-rate assets and LIBOR- indexed repurchase agreements Net gain on investments $ 862 $ (1,255 ) $ 698 $ (11,294 ) CRT agreements Net gain on investments $ 7,764 $ — $ 3,621 $ —
Derivative Arising From CRT Agreements And Derivative Contracts [Member]
Summary of Activity in Notional Amount for Derivative Arising from CRT Agreements and Derivative Contracts	The following tables summarize the notional amount activity for derivatives arising from CRT Agreements and derivative contracts used to hedge the Company’s MBS, inventory of mortgage loans acquired for sale, mortgage loans at fair value held in a VIE, IRLCs and MSRs. Quarter ended June 30, 2016 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 3,466,697 21,138,542 (20,257,713 ) 4,347,526 Forward purchase contracts 2,981,134 15,361,702 (14,152,487 ) 4,190,349 MBS call options 425,000 1,975,000 (875,000 ) 1,525,000 Swap futures 12,500 12,500 (12,500 ) 12,500 Eurodollar future sale contracts 1,734,000 — (191,000 ) 1,543,000 Call options on interest rate futures 1,250,000 275,000 (1,000,000 ) 525,000 Put options on interest rate futures 1,525,000 550,000 (1,650,000 ) 425,000 CRT Agreements 5,931,409 3,162,746 (117,194 ) 8,976,961 Quarter ended June 30, 2015 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 2,958,492 14,047,534 (13,753,740 ) 3,252,286 Forward purchase contracts 2,132,616 9,885,504 (9,754,498 ) 2,263,622 MBS put option 190,000 587,500 (410,000 ) 367,500 MBS call option — 140,000 (100,000 ) 40,000 Eurodollar future sale contracts 6,355,000 185,000 (556,000 ) 5,984,000 Treasury future sale contracts 85,000 65,000 (110,000 ) 40,000 Call options on interest rate futures 1,165,000 1,635,000 (1,665,000 ) 1,135,000 Put options on interest rate futures 1,020,000 1,548,000 (1,295,000 ) 1,273,000 CRT Agreements — 740,153 — 740,153 Six months ended June 30, 2016 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 2,450,642 35,292,415 (33,395,531 ) 4,347,526 Forward purchase contracts 2,469,550 25,430,142 (23,709,343 ) 4,190,349 MBS call options 375,000 2,725,000 (1,575,000 ) 1,525,000 Swap futures — 25,000 (12,500 ) 12,500 Eurodollar future sale contracts 1,755,000 80,000 (292,000 ) 1,543,000 Call options on interest rate futures 50,000 1,575,000 (1,100,000 ) 525,000 Put options on interest rate futures 1,600,000 2,600,000 (3,775,000 ) 425,000 CRT Agreements 4,546,265 5,084,744 (654,048 ) 8,976,961 Six months ended June 30, 2015 Balance, Balance, beginning Dispositions/ end Instrument of period Additions expirations of period (in thousands) Forward sales contracts 1,601,283 23,877,061 (22,226,058 ) 3,252,286 Forward purchase contracts 1,100,700 16,933,180 (15,770,258 ) 2,263,622 MBS put option 340,000 992,500 (965,000 ) 367,500 MBS call option — 140,000 (100,000 ) 40,000 Eurodollar future sale contracts 7,426,000 285,000 (1,727,000 ) 5,984,000 Eurodollar future purchase contracts 800,000 — (800,000 ) — Treasury future sale contracts 85,000 161,500 (206,500 ) 40,000 Call options on interest rate futures 1,030,000 2,275,000 (2,170,000 ) 1,135,000 Put options on interest rate futures 275,000 2,668,000 (1,670,000 ) 1,273,000 CRT Agreements — 740,153 — 740,153

Mortgage Loans at Fair Value (T

Mortgage Loans at Fair Value (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Distribution of Company's Mortgage Loans at Fair Value	Following is a summary of the distribution of the Company’s mortgage loans at fair value: June 30, 2016 December 31, 2015 Loan type Fair value Unpaid principal balance Fair value Unpaid principal balance (in thousands) Distressed mortgage loans Nonperforming mortgage loans $ 952,144 $ 1,314,229 $ 1,222,956 $ 1,702,548 Performing mortgage loans: Fixed interest rate 313,064 413,063 417,658 535,610 Interest rate step-up 233,925 333,517 299,569 412,749 Adjustable-rate/hybrid 109,773 126,842 160,051 185,997 Balloon — — 160 204 656,762 873,422 877,438 1,134,560 Fixed interest rate jumbo mortgage loans held in a VIE 427,091 416,195 455,394 454,935 $ 2,035,997 $ 2,603,846 $ 2,555,788 $ 3,292,043 Mortgage loans at fair value pledged to secure: Assets sold under agreements to repurchase $ 1,589,798 $ 2,067,341 Asset-backed financing of a VIE at fair value and FHLB advances $ 427,091 $ 455,394
Summary of Certain Concentrations of Credit Risk in Portfolio of Distressed Mortgage Loans at Fair Value	Following is a summary of certain concentrations of credit risk in the portfolio of distressed mortgage loans at fair value: Concentration June 30, 2016 December 31, 2015 (percentages are of fair value) Portion of mortgage loans originated between 2005 and 2007 71% 72% Percentage of fair value of mortgage loans with unpaid-principal balance-to-current-property-value in excess of 100% 42% 48% States contributing 5% or more of mortgage loans New York California New Jersey Florida Massachusetts California New York New Jersey Florida

Real Estate Acquired in Settl50

Real Estate Acquired in Settlement of Loans (Tables)	6 Months Ended
	Jun. 30, 2016
Banking And Thrift [Abstract]
Summary of Financial Information Relating to REO	Following is a summary of financial information relating to REO: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance at beginning of period $ 327,212 $ 317,536 $ 341,846 $ 303,228 Transfers from mortgage loans at fair value and advances 53,558 71,961 114,052 158,078 Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment (8,082 ) (1,292 ) (12,266 ) (1,293 ) Results of REO: Valuation adjustments, net (7,283 ) (6,606 ) (17,928 ) (18,006 ) Gain on sale, net 4,718 4,800 9,327 10,368 (2,565 ) (1,806 ) (8,601 ) (7,638 ) Proceeds from sales (70,665 ) (62,121 ) (135,573 ) (128,097 ) Balance at end of period $ 299,458 $ 324,278 $ 299,458 $ 324,278 REO pledged to secure assets sold under agreements to repurchase $ 50,126 $ 55,420 REO held in a consolidated subsidiary whose stock is pledged to secure financings of such properties $ 166,017 $ 147,631

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	6 Months Ended
	Jun. 30, 2016
Summary of MSRs Carried at Fair Value	Following is a summary of MSRs carried at fair value: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance at beginning of period $ 61,071 $ 49,448 $ 66,584 $ 57,358 Purchases — — 2,602 — MSRs resulting from mortgage loan sales 1,847 1,589 5,147 3,495 Changes in fair value: Due to changes in valuation inputs used in valuation model (1) (2,508 ) 8,088 (11,460 ) (107 ) Other changes in fair value (2) (2,433 ) (1,782 ) (4,896 ) (3,403 ) (4,941 ) 6,306 (16,356 ) (3,510 ) Balance at period end $ 57,977 $ 57,343 $ 57,977 $ 57,343 MSRs pledged to secure notes payable at period end $ 57,977 $ 57,343 (1) Principally reflects changes in pricing spread (discount rate) and prepayment speed inputs, primarily due to changes in market interest rates. (2) Represents changes due to realization of expected cash flows.
Summary of MSRs Carried at Lower of Amortized Cost or Fair Value	Following is a summary of MSRs carried at lower of amortized cost or fair value: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Amortized Cost: Balance at beginning of period $ 422,676 $ 323,806 $ 404,101 $ 308,137 MSRs resulting from mortgage loan sales 58,262 30,587 91,124 56,141 Amortization (15,531 ) (9,988 ) (29,818 ) (19,580 ) Sales (106 ) — (106 ) (293 ) Balance at end of period 465,301 344,405 465,301 344,405 Valuation Allowance: Balance at beginning of period (28,650 ) (14,093 ) (10,944 ) (7,714 ) Additions (23,170 ) 7,082 (40,876 ) 703 Balance at end of period (51,820 ) (7,011 ) (51,820 ) (7,011 ) MSRs, net $ 413,481 $ 337,394 $ 413,481 $ 337,394 Fair value at beginning of period $ 405,635 $ 327,703 $ 424,154 $ 322,230 Fair value at period end $ 417,094 $ 362,908 MSRs pledged to secure notes payable at period end $ 413,481 $ 337,394
Summary of Company's Estimate of Future Amortization of Existing MSRs Carried at Amortized Cost	The following table summarizes the Company’s estimate of future amortization of its existing MSRs carried at amortized cost. This estimate was developed with the inputs used in the June 30, 2016 valuation of MSRs. The inputs underlying the following estimate will change as market conditions and portfolio composition and behavior change, causing both actual and projected amortization levels to change over time. Estimated MSR 12 months ended June 30, amortization (in thousands) 2017 $ 63,951 2018 54,865 2019 48,042 2020 42,175 2021 37,231 Thereafter 219,037 Total $ 465,301
Mortgage service rights [Member]
Summary of Net Mortgage Loan Servicing Fees Relating to MSRs	Servicing fees relating to MSRs are recorded in Net mortgage loan servicing fees Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Contractually-specified servicing fees $ 29,991 $ 24,490 $ 57,770 $ 46,077

Assets Sold Under Agreements 52

Assets Sold Under Agreements to Repurchase (Tables)	6 Months Ended
	Jun. 30, 2016
Summary of Financial Information Relating to Assets Sold under Agreements to Repurchase	Following is a summary of financial information relating to assets sold under agreements to repurchase: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average interest rate (1) 2.17 % 2.25 % 2.19 % 2.25 % Average balance $ 3,268,774 $ 3,172,806 $ 3,033,038 $ 3,061,923 Total interest expense $ 22,056 $ 20,208 $ 42,468 $ 39,120 Maximum daily amount outstanding $ 4,331,706 $ 3,511,918 $ 4,402,724 $ 3,842,167 (1) Excludes the effect of amortization of debt issuance costs of $2.2 million and $4.3 million for the quarter and six months ended June 30, 2016, respectively, and $2.2 million and $4.9 million for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value: Amount outstanding $ 3,276,854 $ 3,130,328 Unamortized debt issuance costs (1,163 ) (1,548 ) $ 3,275,691 $ 3,128,780 Weighted-average interest rate 2.26 % 2.33 % Available borrowing capacity: Committed $ 488,906 $ 231,913 Uncommitted 895,213 661,756 $ 1,384,119 $ 893,669 Margin deposits placed with counterparties included in Other $ 8,320 $ 7,268 Fair value of assets securing agreements to repurchase: Mortgage-backed securities $ 531,612 $ 313,753 Mortgage loans acquired for sale at fair value 1,341,459 1,204,462 Mortgage loans at fair value 1,589,798 2,067,341 Real estate acquired in settlement of loans 216,143 283,343 Restricted cash on credit risk transfer agreements 292,632 — $ 3,971,644 $ 3,868,899
Summary of Maturities of Outstanding Assets Sold under Agreements to Repurchase by Facility Maturity Date	Following is a summary of maturities of outstanding assets sold under agreements to repurchase by facility maturity date: Remaining Maturity at June 30, 2016 Contractual balance (in thousands) Within 30 days $ 340,352 Over 30 to 90 days 438,615 Over 90 days to 180 days 809,278 Over 180 days to 1 year 1,436,236 Over 1 year to 2 years 252,373 $ 3,276,854 Weighted average maturity (in months) 7
Summary of Assets Sold under Agreements to Repurchase by Counterparty	Securities sold under agreements to repurchase Counterparty Amount at risk Weighted average maturity (in thousands) Bank of America, N.A. $ 10,415 August 10, 2016 Daiwa Capital Markets America Inc. $ 10,582 August 9, 2016 JPMorgan Chase & Co. $ 3,449 July 28, 2016 Wells Fargo, N.A. $ 3,070 July 17, 2016
Covenant Compliance	The following is a summary of the tangible net worth, as defined in the respective borrowing agreements, and minimum required amounts for the Company and certain of its subsidiaries at June 30, 2016 to comply with the debt covenants contained in the borrowing agreements: Tangible net worth as of June 30, 2016 Minimum Entity Balance required (in thousands) PennyMac Mortgage Investment Trust $ 1,360,827 $ 860,000 Operating Partnership $ 1,401,552 $ 700,000 PennyMac Holdings, LLC $ 784,290 $ 250,000 PennyMac Corp. $ 401,634 $ 150,000
CRT Agreements [Member]
Summary of Assets Sold under Agreements to Repurchase by Counterparty	CRT Agreements Counterparty Amount at risk Weighted average maturity (in thousands) JPMorgan Chase & Co. $ 38,630 July 22, 2016 Bank of America, N.A. $ 30,102 July 15, 2016 BNP Paribas Corporate & Institutional Banking $ 18,103 July 14, 2016
Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Summary of Assets Sold under Agreements to Repurchase by Counterparty	The amount at risk (the fair value of the assets pledged plus the related margin deposit, less the amount advanced by the counterparty and interest payable) and maturity information relating to the Company’s assets sold under agreements to repurchase is summarized by counterparty below as of June 30, 2016: Mortgage loans acquired for sale, Mortgage loans and REO sold under agreements to repurchase Weighted-average Counterparty Amount repurchase agreement maturity Facility maturity (in thousands) Citibank, N.A. $ 327,363 August 6, 2016 October 20, 2016 Credit Suisse First Boston Mortgage Capital LLC $ 158,462 September 21, 2016 March 30, 2017 JPMorgan Chase & Co. $ 131,702 - January 26, 2017 Bank of America, N.A. $ 37,040 September 22, 2016 March 28, 2017 Morgan Stanley $ 14,924 August 22, 2016 December 16, 2016 Barclays Capital $ 3,879 September 13, 2016 September 13, 2016

Mortgage Loan Participation a53

Mortgage Loan Participation and Sale Agreements (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Mortgage Loan Participation and Sale Agreements	Mortgage loan participation and sale agreements are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average interest rate (1) 1.69 % 1.43 % 1.68 % 1.43 % Average balance $ 70,701 $ 60,363 $ 69,649 $ 52,001 Total interest expense $ 333 $ 266 $ 661 $ 473 Maximum daily amount outstanding $ 96,335 $ 148,032 $ 97,672 $ 148,032 (1) Excludes the effect of amortization of debt issuance costs of $31,000 and $68,000 for the quarter and six months ended June 30, 2016, respectively, and $47,000 and $99,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 (dollars in Carrying value: Amount outstanding $ 96,335 Unamortized debt issuance costs — $ 96,335 Weighted-average interest rate 1.72 % Mortgage loans acquired for sale pledged to secure mortgage loan participation and sale agreements $ 100,497

Federal Home Loan Bank Advanc54

Federal Home Loan Bank Advances (Tables)	6 Months Ended
	Jun. 30, 2016
Banking And Thrift [Abstract]
Summary of FHLB Advances	The FHLB advances are summarized below: Six Months Ended June 30, 2016 (dollars During the period: Weighted-average interest rate 0.49 % Average balance $ 49,019 Total interest expense $ 122 Maximum daily amount outstanding $ 201,130 December 31, 2015 (dollars in thousands) Carrying value $ 183,000 Weighted-average interest rate 0.30 % Fair value of assets securing FHLB advances: Mortgage-backed securities $ 8,720 Mortgage loans acquired for sale at fair value 63,993 Mortgage loans at fair value 134,172 $ 206,885

Notes Payable (Tables)

Notes Payable (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Financial Information Relating to Note Payable	Following is a summary of financial information relating to the notes payable: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars During the period: Weighted-average interest rate (1) 4.63 % 4.18 % 4.65 % 4.18 % Average balance $ 188,330 $ 104,797 $ 200,973 $ 52,981 Total interest expense $ 2,991 $ 994 $ 6,334 $ 994 Maximum daily amount outstanding $ 211,103 $ 192,352 $ 234,476 $ 192,352 (1) Excludes the effect of amortization of debt issuance costs of $788,000 and $1.6 million for the quarter and six months ended June 30, 2016, respectively, and $354,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value: Amount outstanding $ 164,003 $ 236,107 Unamortized debt issuance costs (27 ) (92 ) $ 163,976 $ 236,015 Weighted-average interest rate 4.32 % 4.53 % MSRs pledged to secure notes payable $ 471,458 $ 459,741

Asset-Backed Financing of a V56

Asset-Backed Financing of a Variable Interest Entity at Fair Value (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Financial Information Relating to Asset-Backed Financing of a VIE	Following is a summary of financial information relating to the asset-backed financing of a VIE: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (dollars in thousands) During the period: Weighted-average fair value $ 334,233 $ 159,236 $ 325,112 $ 162,361 Interest expense $ 3,606 $ 1,301 $ 4,958 $ 2,885 Weighted-average effective interest rate 3.34 % 3.23 % 3.34 % 3.53 % June 30, 2016 December 31, 2015 (dollars in thousands) Carrying value $ 325,939 $ 247,690 UPB $ 317,305 $ 248,284 Weighted-average interest rate 3.50 % 3.50 %

Exchangeable Senior Notes (Tabl

Exchangeable Senior Notes (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Financial Information Relating to Exchangeable Notes	Following is financial information relating to the Exchangeable Notes: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) During the period: Weighted-average UPB $ 250,000 $ 250,000 $ 250,000 $ 250,000 Interest expense (1) $ 3,616 $ 3,601 $ 7,228 $ 7,198 (1) Total interest expense includes amortization of debt issuance costs of $257,000 and $509,000 for the quarter and six months ended June 30, 2016, respectively, and $242,000 and $481,000 for the quarter and six months ended June 30, 2015, respectively. June 30, 2016 December 31, 2015 (in thousands) Carrying value: UPB $ 250,000 $ 250,000 Unamortized debt issuance costs (4,436 ) (4,946 ) $ 245,564 $ 245,054

Liability for Losses Under Re58

Liability for Losses Under Representations and Warranties (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Company's Liability for Losses under Representations and Warranties	Following is a summary of the Company’s liability for losses under representations and warranties: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Balance, beginning of period $ 18,712 $ 15,379 $ 20,171 $ 14,242 Provision for losses Pursuant to mortgage loan sales 650 1,419 1,221 2,344 Adjustment to previously recorded amount due to change in estimate — — (1,724 ) — Losses incurred (104 ) (84 ) (410 ) (102 ) Recoveries — — — 230 Balance, end of period $ 19,258 $ 16,714 $ 19,258 $ 16,714 UPB of mortgage loans subject to representations and warranties at period end $ 46,339,653 $ 37,431,575

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2016
Commitments And Contingencies Disclosure [Abstract]
Company's Outstanding Contractual Loan Commitments	The following table summarizes the Company’s outstanding contractual loan commitments: June 30, 2016 (in thousands) Commitments to purchase mortgage loans acquired for sale $ 1,658,813

Net Interest Income (Tables)

Net Interest Income (Tables)	6 Months Ended
	Jun. 30, 2016
Banking And Thrift Interest [Abstract]
Summary of Net Interest Income	Net interest income is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Interest income: From nonaffiliates: Short-term investments $ — $ 82 $ 377 $ 302 Mortgage-backed securities 2,756 2,505 5,468 5,139 Mortgage loans acquired for sale at fair value 13,596 10,315 22,860 17,416 Mortgage loans at fair value 23,042 22,171 52,228 43,725 Mortgage loans at fair value held by a VIE 4,951 4,429 10,480 9,842 Other 1,708 13 1,991 24 46,053 39,515 93,404 76,448 From PFSI: ESS purchased from PFSI, at fair value 5,713 5,818 12,728 9,570 51,766 45,333 106,132 86,018 Interest expense: To nonaffiliates: Assets sold under agreements to repurchase 22,056 20,208 42,468 39,120 Mortgage loan participation and sale agreements 333 266 661 473 FHLB advances — 2 122 2 Notes payable 2,991 994 6,334 994 Asset-backed financings of VIEs at fair value (1) 3,606 2,414 4,958 3,997 Exchangeable Notes 3,616 3,601 7,228 7,198 Interest shortfall on repayments of mortgage loans serviced for Agency securitizations 1,589 1,291 2,561 2,464 Placement fees on mortgage loan impound deposits 180 430 441 704 34,371 29,206 64,773 54,952 To PFSI—Note payable 2,222 533 3,824 533 36,593 29,739 68,597 55,485 Net interest income $ 15,173 $ 15,594 $ 37,535 $ 30,533 (1) The results for the quarter and six months ended June 30, 2015 include interest expense from Asset-backed financing of a VIE at fair value and CRT Agreements financing at fair value.

Net Gain on Mortgage Loans Ac61

Net Gain on Mortgage Loans Acquired for Sale (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Net Gain on Mortgage Loans Acquired for Sale	Net gain on mortgage loans acquired for sale is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Cash loss: Mortgage loans $ (18,461 ) $ (51,218 ) $ (21,480 ) $ (58,762 ) Hedging activities (29,118 ) 18,713 (61,694 ) 6,186 (47,579 ) (32,505 ) (83,174 ) (52,576 ) Non cash gain: Receipt of MSRs in mortgage loan sale transactions 60,109 32,176 96,271 59,636 Provision for losses relating to representations and warranties provided in mortgage loan sales Pursuant to mortgage loans sales (650 ) (1,419 ) (1,221 ) (2,344 ) Adjustment to previously recorded amount due to change in estimate — — 1,724 — Change in fair value during the period of financial instruments held at period end: IRLCs 7,423 (8,481 ) 12,111 (5,927 ) Mortgage loans 5,015 14,551 11,752 18,277 Hedging derivatives (92 ) 6,853 1,812 4,269 12,346 12,923 25,675 16,619 $ 24,226 $ 11,175 $ 39,275 $ 21,335

Net (Loss) Gain on Investments

Net (Loss) Gain on Investments (Tables)	6 Months Ended
	Jun. 30, 2016
Investments Debt And Equity Securities [Abstract]
Summary of Net (Loss) Gain on Investments	Net (loss) gain on investments is summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Net (loss) gain on investments: From non-affiliates: Mortgage-backed securities $ 4,332 $ (6,702 ) $ 9,431 $ (5,186 ) Mortgage loans at fair value (13,463 ) 30,068 932 47,254 Mortgage loans held in a VIE (48 ) (12,077 ) 8,347 (10,277 ) CRT Agreements 7,764 — 3,621 — Asset-backed financing of a VIE at fair value 890 3,991 (8,963 ) 3,222 Hedging derivatives 862 (1,255 ) 698 (11,294 ) 337 14,025 14,066 23,719 From PFSI—ESS (15,824 ) 8,589 (33,451 ) 2,342 $ (15,487 ) $ 22,614 $ (19,385 ) $ 26,061

Net Mortgage Loan Servicing F63

Net Mortgage Loan Servicing Fees (Tables)	6 Months Ended
	Jun. 30, 2016
Text Block [Abstract]
Summary of Net Mortgage Loan Servicing Fees	Net mortgage loan servicing fees are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Servicing fees (1) $ 31,578 $ 25,887 $ 60,450 $ 48,516 MSR recapture fee from PFSI 311 — 440 — Effect of MSRs: Carried at lower of amortized cost or fair value: Amortization (15,531 ) (9,988 ) (29,818 ) (19,580 ) Provision for impairment (23,170 ) 7,082 (40,876 ) 703 Gain on sale 11 — 11 83 Carried at fair value—change in fair value (4,941 ) 6,306 (16,356 ) (3,510 ) Gains on hedging derivatives 27,433 (16,270 ) 57,394 (5,193 ) (16,198 ) (12,870 ) (29,645 ) (27,497 ) Net mortgage loan servicing fees $ 15,691 $ 13,017 $ 31,245 $ 21,019 Average servicing portfolio $ 45,647,524 $ 35,742,835 $ 44,531,795 $ 35,215,677 (1) Includes contractually specified servicing and ancillary fees.

Other Expenses (Tables)

Other Expenses (Tables)	6 Months Ended
	Jun. 30, 2016
Other Income And Expenses [Abstract]
Summary of Other Expenses	Other expenses are summarized below: Quarter ended June 30, Six months ended June 30, 2016 2015 2016 2015 (in thousands) Common overhead allocation from PFSI (1) $ 2,434 $ 2,546 $ 4,996 $ 4,937 Mortgage loan origination 1,557 1,176 2,678 2,129 Real estate held for investment 930 — 1,487 — Technology 332 311 766 603 Insurance 316 302 634 675 Other 946 861 1,590 1,708 $ 6,515 $ 5,196 $ 12,151 $ 10,052 (1) For the quarter ended June 30, 2015, in accordance with the terms of the Company’s management agreement, PCM provided the Company a discretionary waiver of $700,000 of overhead expenses that otherwise would have been allocable to the Company. On December 15, 2015, the Operating Partnership amended its management agreement to provide that the overhead costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four.

Segments and Related Informat65

Segments and Related Information (Tables)	6 Months Ended
	Jun. 30, 2016
Segment Reporting [Abstract]
Financial Highlights by Operating Segment	Financial highlights by operating segment are summarized below: Correspondent Investment Quarter ended June 30, 2016 production activities Total (in thousands) Net investment income: Interest income $ 13,415 $ 38,351 $ 51,766 Interest expense (7,951 ) (28,642 ) (36,593 ) 5,464 9,709 15,173 Net gain on mortgage loans acquired for sale 24,226 — 24,226 Net loss on investments — (15,487 ) (15,487 ) Net mortgage loan servicing fees — 15,691 15,691 Other income (loss) 8,535 (520 ) 8,015 38,225 9,393 47,618 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 19,710 21,027 40,737 Other 2,082 12,958 15,040 21,792 33,985 55,777 Pre-tax income (loss) $ 16,433 $ (24,592 ) $ (8,159 ) Total assets at period end $ 1,492,171 $ 4,275,391 $ 5,767,562 Correspondent Investment Quarter ended June 30, 2015 production activities Total (in thousands) Net investment income: Interest income $ 8,997 $ 36,336 $ 45,333 Interest expense (4,763 ) (24,976 ) (29,739 ) 4,234 11,360 15,594 Net gain on mortgage loans acquired for sale 11,175 — 11,175 Net gain on investments — 22,614 22,614 Net mortgage loan servicing fees — 13,017 13,017 Other income 7,352 13 7,365 22,761 47,004 69,765 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 15,785 17,463 33,248 Other 1,754 9,675 11,429 17,539 27,138 44,677 Pre-tax income $ 5,222 $ 19,866 $ 25,088 Total assets at period end $ 2,243,570 $ 4,433,804 $ 6,677,374 Correspondent Investment Six months ended June 30, 2016 production activities Total (in thousands) Net investment income: Interest income $ 22,439 $ 83,693 $ 106,132 Interest expense (13,070 ) (55,527 ) (68,597 ) 9,369 28,166 37,535 Net gain on mortgage loans acquired for sale 39,275 — 39,275 Net loss on investments — (19,385 ) (19,385 ) Net mortgage loan servicing fees — 31,245 31,245 Other income (loss) 15,373 (4,209 ) 11,164 64,017 35,817 99,834 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 33,064 37,413 70,477 Other 3,609 22,863 26,472 36,673 60,276 96,949 Pre-tax income (loss) $ 27,344 $ (24,459 ) $ 2,885 Total assets at period end $ 1,492,171 $ 4,275,391 $ 5,767,562 Correspondent Investment Six months ended June 30, 2015 production activities Total (in thousands) Net investment income: Interest income $ 16,109 $ 69,909 $ 86,018 Interest expense (8,583 ) (46,902 ) (55,485 ) 7,526 23,007 30,533 Net gain on mortgage loans acquired for sale 21,335 — 21,335 Net gain on investments — 26,061 26,061 Net mortgage loan servicing fees — 21,019 21,019 Other income (loss) 12,703 (4,229 ) 8,474 41,564 65,858 107,422 Expenses: Mortgage loan fulfillment, servicing and management fees payable to PFSI 28,956 34,831 63,787 Other 2,938 19,429 22,367 31,894 54,260 86,154 Pre-tax income $ 9,670 $ 11,598 $ 21,268 Total assets at period end $ 2,243,570 $ 4,433,804 $ 6,677,374

Supplemental Cash Flow Inform66

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2016
Supplemental Cash Flow Elements [Abstract]
Summary of Supplemental Cash Flow Information	Six months ended June 30, 2016 2015 (in thousands) Cash paid for interest $ 76,198 $ 53,449 Income taxes paid, net $ 388 $ 401 Non-cash investing activities: Receipt of MSRs as proceeds from sales of mortgage loans $ 96,271 $ 59,636 Transfer of mortgage loans and advances to real estate acquired in settlement of loans $ 114,052 $ 158,078 Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment $ 12,266 $ 1,548 Receipt of ESS pursuant to recapture agreement with PFSI $ 3,601 $ 2,565 Non-cash financing activities: Transfer of mortgage loans at fair value financed under agreements to repurchase to REO financed under agreements to repurchase $ 15,191 $ 24,972 Dividends payable $ 32,082 $ 46,074

Regulatory Capital and Liquid67

Regulatory Capital and Liquidity Requirements (Tables)	6 Months Ended
	Jun. 30, 2016
Mortgage Banking [Abstract]
Summary of Capital and Liquidity Requirements by Agencies	Such Agencies’ capital and liquidity requirements, the calculations of which are defined by each entity, are summarized below: June 30, 2016 Net Worth (1) Tangible Net Worth / Total Assets Ratio (1) Liquidity (1) Agency Actual Required Actual Required Actual Required (in thousands) (in thousands) (in thousands) Fannie Mae $ 402,793 $ 120,219 13 % 6 % $ 67,636 $ 16,481 Freddie Mac $ 402,793 $ 120,219 13 % 6 % $ 67,636 $ 16,481 (1) Calculated in compliance with the respective Agency’s requirements.

Organization and Basis of Pre68

Organization and Basis of Presentation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2016Segment
Accounting Policies [Abstract]
Number of business segments	2
Percentage of taxable income for distributions	90.00%

Concentration of Risks - Summar

Concentration of Risks - Summary of Holdings of Assets Purchased (Detail) - Forward Purchase Commitments [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Investment portfolio purchases through one or more subsidiaries of Citigroup Inc. as of:
Investment portfolio purchases above through one or more subsidiaries of Citigroup, Inc. Mortgage loans at fair value	$ 616,018	$ 855,691
Investment portfolio purchases above through one or more subsidiaries of Citigroup, Inc. REO	60,009	88,088
Investment portfolio purchases above through one or more subsidiaries of Citigroup, Inc. total	676,027	943,779
Total carrying value of mortgage loans at fair value and REO	$ 2,335,455	$ 2,897,634

Transactions with Related Par70

Transactions with Related Parties - Summary of Correspondent Production Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Fulfillment fees earned by PLS	$ 19,111	$ 15,333	$ 32,046	$ 28,199
Purchases of mortgage loans acquired for sale at fair value from PLS			8,139	10,828
Mortgage loans included in Mortgage loans acquired for sale at fair value pending sale to PLS	1,461,029		1,461,029		$ 1,283,795
Penny Mac Loan Services LLC [Member]
Related Party Transaction [Line Items]
Fulfillment fees earned by PLS	19,111	15,333	32,046	28,199
Unpaid principal balance (“UPB”) of mortgage loans fulfilled by PLS	5,174,020	3,579,078	8,433,383	6,469,210
Sourcing fees received from PLS included in Net gain on mortgage loans acquired for sale	2,824	2,427	4,773	3,848
UPB of mortgage loans sold to PLS	9,409,399	8,082,764	15,905,121	12,818,138
Purchases of mortgage loans acquired for sale at fair value from PLS	3,424	2,423	8,139	10,828
Tax service fee paid to PLS included in Other expense	1,464	1,113	2,471	2,002
Mortgage banking and warehouse services fees paid to PLS included in Mortgage loan servicing fees	1	$ 0	2	$ 0
Mortgage loans included in Mortgage loans acquired for sale at fair value pending sale to PLS	$ 619,008		$ 619,008		$ 669,288

Transactions with Related Par71

Transactions with Related Parties - Summary of Mortgage Loan Servicing Fees Earned and Mortgage Servicing Rights Recaptured Income Earned (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Mortgage loan servicing fees	$ 16,427	$ 12,136	$ 27,880	$ 22,806
MSR recapture income recognized included in Net mortgage loan servicing fees	311	0	440	0
Average mortgage loan servicing portfolio	45,647,524	35,742,835	44,531,795	35,215,677
Penny Mac Loan Services LLC [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	16,427	12,136	27,880	22,806
MSR recapture income recognized included in Net mortgage loan servicing fees	311	0	440	0
Average mortgage loan servicing portfolio	45,647,524	35,742,835	44,531,795	35,215,677
Penny Mac Loan Services LLC [Member] | Mortgage loans acquired for sale at fair value [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	251	101	422	158
Average mortgage loan servicing portfolio	1,422,945	1,014,883	1,170,720	887,660
Penny Mac Loan Services LLC [Member] | Distressed mortgage loans [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	11,426	7,276	18,234	14,202
Average mortgage loan servicing portfolio	1,791,429	2,295,807	1,925,605	2,303,080
Penny Mac Loan Services LLC [Member] | Mortgage loans held in VIE [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	51	27	92	57
Average mortgage loan servicing portfolio	437,542	504,309	446,013	514,879
Penny Mac Loan Services LLC [Member] | Mortgage servicing rights [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	4,699	4,732	9,132	8,389
Penny Mac Loan Services LLC [Member] | Base [Member] | Mortgage loans acquired for sale at fair value [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	79	42	135	68
Penny Mac Loan Services LLC [Member] | Base [Member] | Distressed mortgage loans [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	2,908	4,183	6,267	8,215
Penny Mac Loan Services LLC [Member] | Base [Member] | Mortgage loans held in VIE [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	51	27	92	57
Penny Mac Loan Services LLC [Member] | Base [Member] | Mortgage servicing rights [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	4,583	4,627	8,927	8,253
Penny Mac Loan Services LLC [Member] | Activity-based [Member] | Mortgage loans acquired for sale at fair value [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	172	59	287	90
Penny Mac Loan Services LLC [Member] | Activity-based [Member] | Distressed mortgage loans [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	8,518	3,093	11,967	5,987
Penny Mac Loan Services LLC [Member] | Activity-based [Member] | Mortgage loans held in VIE [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	0	0	0	0
Penny Mac Loan Services LLC [Member] | Activity-based [Member] | Mortgage servicing rights [Member]
Related Party Transaction [Line Items]
Mortgage loan servicing fees	$ 116	$ 105	$ 205	$ 136

Transactions with Related Par72

Transactions with Related Parties - Summary of Base Management and Performance Incentive Fees Payable (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Total management fee incurred during the period	$ 5,199	$ 5,779	$ 10,551	$ 12,782
PNMAC Capital Management LLC [Member]
Related Party Transaction [Line Items]
Total management fee incurred during the period	5,199	5,779	10,551	12,782
PNMAC Capital Management LLC [Member] | Base [Member]
Related Party Transaction [Line Items]
Total management fee incurred during the period	5,199	5,709	10,551	11,439
PNMAC Capital Management LLC [Member] | Performance incentive [Member]
Related Party Transaction [Line Items]
Total management fee incurred during the period	$ 0	$ 70	$ 0	$ 1,343

Transactions with Related Par73

Transactions with Related Parties - Summary of Expenses (Detail) - PNMAC Capital Management LLC [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Common overhead incurred by PCM and its affiliates	$ 2,435	$ 2,702	$ 4,996	$ 5,431
Expenses (reimbursements) incurred on the Company’s behalf	(169)	83	(114)	462
Total expenses incurred in transaction with affiliates	2,266	2,785	4,882	5,893
Payments and settlements during the year	$ 28,952	$ 24,114	$ 56,613	$ 46,866

Transactions with Related Par74

Transactions with Related Parties - Summary of Expenses (Parenthetical) (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016
Related Party Transaction [Line Items]
Management agreement amendment description		The Operating Partnership amended its management agreement to provide that the total costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four.
PNMAC Capital Management LLC [Member]
Related Party Transaction [Line Items]
Waiver of overhead expenses	$ 700,000
Management agreement amendment description		The Operating Partnership amended its management agreement to provide that the total costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four

Transactions with Related Par75

Transactions with Related Parties - Summary of Amounts Receivable and Payable to PFSI (Detail) - PennyMac Financial Services, Inc. [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Receivable from PFSI:
MSR recapture receivable	$ 605	$ 781
Other	11,770	8,025
Due from Affiliates	12,375	8,806
Payable to PFSI:
Servicing fees	9,154	3,682
Management fees	5,200	5,670
Correspondent production fees	2,567	2,729
Interest on Note payable to PFSI	1,042	412
Conditional Reimbursement	900	900
Allocated expenses	847	390
Fulfillment fees	1,890	1,082
Expenses paid by PFSI on PMT’s behalf	454	4,100
Total expense due to affiliate	$ 22,054	$ 18,965

Transactions with Related Par76

Transactions with Related Parties - Note Payable to PLS - Additional Information (Detail) - USD ($)	Aug. 04, 2009	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Apr. 30, 2015
Related Party Transaction [Line Items]
Sale of excess servicing spread		$ 59,045,000	$ 0
Payment of contingent underwriting fees		0	$ 688,000
Loan Agreement [Member]
Related Party Transaction [Line Items]
Maximum borrowing capacity of loan amount					$ 150,000,000
Outstanding borrowings		$ 150,000,000		$ 150,000,000
PennyMac Financial Services, Inc. [Member]
Related Party Transaction [Line Items]
Number of common shares held by affiliate		75,000		75,000
PNMAC Capital Management LLC [Member] | Maximum [Member]
Related Party Transaction [Line Items]
PMT agreed to reimburse PCM for a payment	$ 2,900,000
Payment of contingent underwriting fees	$ 5,900,000

Transactions with Related Par77

Transactions with Related Parties - Summary of Investing Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
ESS:
Purchases			$ 0	$ 187,287
Interest income	$ 51,766	$ 45,333	106,132	86,018
Net loss included in Net (loss) gain on investments :
Net (loss) gain on investments	(15,487)	22,614	(19,385)	26,061
PennyMac Financial Services, Inc. [Member]
ESS:
Purchases	0	140,875	0	187,287
Received pursuant to a recapture agreement	1,690	1,319	3,601	2,565
Repayments and sales	17,400	18,352	97,326	31,083
Interest income	5,713	5,818	12,728	9,570
Net loss included in Net (loss) gain on investments :
Valuation changes	(17,428)	7,133	(36,877)	(403)
Recapture income	1,604	1,456	3,426	2,745
Net (loss) gain on investments	$ (15,824)	$ 8,589	$ (33,451)	$ 2,342

Transactions with Related Par78

Transactions with Related Parties - Summary of Financing Activities (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Note payable—Interest expense	$ 36,593	$ 29,739	$ 68,597	$ 55,485
PennyMac Financial Services, Inc. [Member]
Related Party Transaction [Line Items]
Note payable—Interest expense	2,222	533	3,824	533
PennyMac Financial Services, Inc. [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Note payable—Interest expense	2,222	533	3,824	533
PNMAC Capital Management LLC [Member]
Related Party Transaction [Line Items]
Conditional Reimbursements paid to PCM	$ 0	$ 73	$ 0	$ 230

Earnings Per Share - Summary of

Earnings Per Share - Summary of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Basic (loss) earnings per share:
Net (loss) income	$ (5,267)	$ 28,071	$ 9,229	$ 35,579
Effect of participating securities—share-based compensation awards	(307)	(438)	(718)	(1,015)
Net (loss) income attributable to common shareholders	(5,574)	27,633	8,511	34,564
Diluted (loss) earnings per share:
Net (loss) income attributable to common shareholders	(5,574)	27,633	8,511	34,564
Effect of participating securities—share-based compensation awards	0	0	0	0
Interest on Exchangeable Notes, net of income taxes	0	2,121	0	0
Net (loss) income attributable to diluted shareholders	$ (5,574)	$ 29,754	$ 8,511	$ 34,564
Weighted-average basic shares outstanding	68,446	74,683	70,165	74,618
Potentially dilutive securities:
Shares issuable under share-based compensation plan	0	330	0	0
Shares issuable pursuant to exchange of the Exchangeable Notes	0	8,467	0	379
Diluted weighted-average number of shares outstanding	68,446	83,480	70,165	74,997
Basic (loss) earnings per share	$ (0.08)	$ 0.37	$ 0.12	$ 0.46
Diluted (loss) earnings per share	$ (0.08)	$ 0.36	$ 0.12	$ 0.46

Earnings Per Share - Summary 80

Earnings Per Share - Summary of Common Shares Excluded from Computation of Diluted Earnings Per Share (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock excluded from the diluted earnings per share	766	0	766	0
Exchangeable Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock excluded from the diluted earnings per share	8,467	0	8,467	8,467

Loan Sales and Variable Inter81

Loan Sales and Variable Interest Entities - Summary of Cash Flows between Company and Transferees in Transfers Accounted for Sales (Detail) - Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Cash flows:
Proceeds from sales	$ 5,231,974	$ 3,063,397	$ 8,465,753	$ 5,707,641
Mortgage loan servicing fees received	29,179	$ 22,738	56,755	$ 44,641
UPB of mortgage loans outstanding	47,087,431		47,087,431		$ 42,300,338
Delinquent mortgage loans:
30-89 days delinquent	192,175		192,175		175,599
90 or more days delinquent:
Not in foreclosure or bankruptcy	39,377		39,377		38,669
In foreclosure or bankruptcy	44,267		44,267		31,386
Unpaid principal balance of loans outstanding at period-end	83,644		83,644		70,055
Unpaid principal balance of delinquent mortgage loans	$ 275,819		$ 275,819		$ 245,654

Loan Sales and Variable Inter82

Loan Sales and Variable Interest Entities - Summary of Credit Risk Transfer Agreements (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Carrying value of CRT Agreements:
Deposits securing credit risk transfer agreements	$ 338,812	$ 338,812	$ 147,000
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] | Credit Risk Transfer Agreements [Member]
During the period:
UPB of mortgage loans transferred and sold under CRT Agreements	3,162,746	5,084,744
Deposits of cash securing CRT Agreements	126,031	192,737
Gains (losses) recognized on CRT Agreements included in Net (loss) gain on investments
Realized	3,859	6,395
Resulting from valuation changes	3,905	(2,774)
Gains (losses) recognized on net derivative related to credit risk transactions	7,764	3,621
Payments made to settle losses	0	0
UPB of mortgage loans subject to credit guarantee obligation	8,976,961	8,976,961	4,546,265
Delinquency status (in UPB):
Current—89 days delinquent	8,976,093	8,976,093	4,546,265
90 or more days delinquent	868	868	0
Carrying value of CRT Agreements:
Deposits securing credit risk transfer agreements	338,812	338,812	147,000
Interest-only security payable at fair value	1,663	1,663	0
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] | Credit Risk Transfer Agreements [Member] | Derivative Assets [Member]
Carrying value of CRT Agreements:
Net derivative included in Derivative assets	0	0	593
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] | Credit Risk Transfer Agreements [Member] | Derivative Liabilities [Member]
Carrying value of CRT Agreements:
Net derivative included in Derivative liabilities	$ 199	$ 199	$ 0

Loan Sales and Variable Inter83

Loan Sales and Variable Interest Entities - Additional Information (Detail) - Jumbo Mortgage Loan Financing [Member] - Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] - USD ($) $ in Millions	Sep. 30, 2013	Jun. 30, 2016	Dec. 31, 2015
Mortgage Loans on Real Estate [Line Items]
Certificates issued	$ 537	$ 100.6	$ 111
Weighted yield	3.90%
Fair value of certificates retained	$ 366.8	$ 101.2

Netting of Financial Instrume84

Netting of Financial Instruments - Summary of Offsetting of Derivative Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Offsetting Assets [Line Items]
Gross amounts of recognized assets	$ 57,039	$ 13,385
Gross amounts offset in the consolidated balance sheet	(22,032)	(3,300)
Net amounts of assets presented in the consolidated balance sheet	35,007	10,085
Net amounts of assets presented in the consolidated balance sheet	(22,032)	(3,300)
CRT Agreements [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	0	593
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	0	593
Interest Rate Lock Commitments [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	16,803	4,983
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	16,803	4,983
Forward Purchase Contracts [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	35,768	2,444
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	35,768	2,444
Forward Sales Contracts [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	43	2,604
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	43	2,604
Derivatives Not Subject to Master Netting Arrangements [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	16,803	5,576
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	16,803	5,576
MBS Put Options [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	593	93
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	593	93
Put Options on Interest Rate Futures [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	453	1,512
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	453	1,512
Call Options on Interest Rate Futures [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	3,379	1,156
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of assets presented in the consolidated balance sheet	3,379	1,156
Netting [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	0	0
Gross amounts offset in the consolidated balance sheet	(22,032)	(3,300)
Net amounts of assets presented in the consolidated balance sheet	(22,032)	(3,300)
Derivatives Subject to Master Netting Arrangements [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	40,236	7,809
Gross amounts offset in the consolidated balance sheet	(22,032)	(3,300)
Net amounts of assets presented in the consolidated balance sheet	$ 18,204	$ 4,509

Netting of Financial Instrume85

Netting of Financial Instruments - Summary of Derivative Assets and Collateral Held by Counterparty (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	$ 35,007	$ 10,085
Financial instruments	0	0
Cash collateral received	0	0
Net amount	35,007	10,085
Interest Rate Lock Commitments [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	16,803	4,983
Financial instruments	0	0
Cash collateral received	0	0
Net amount	16,803	4,983
Fannie Mae Capital Markets [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	12,439	0
Financial instruments	0	0
Cash collateral received	0	0
Net amount	12,439	0
RJ O'Brien & Associates, LLC [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	867	1,672
Financial instruments	0	0
Cash collateral received	0	0
Net amount	867	1,672
Jefferies Group, LLC [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	3,015	541
Financial instruments	0	0
Cash collateral received	0	0
Net amount	3,015	541
Morgan Stanley Bank, N.A. [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	863	464
Financial instruments	0	0
Cash collateral received	0	0
Net amount	863	464
Royal Bank of Canada [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	397	400
Financial instruments	0	0
Cash collateral received	0	0
Net amount	397	400
Nomura Securities International, Inc [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	274	119
Financial instruments	0	0
Cash collateral received	0	0
Net amount	274	119
Barclays Capital [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	0	796
Financial instruments	0	0
Cash collateral received	0	0
Net amount	0	796
Ally Financial [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	0	209
Financial instruments	0	0
Cash collateral received	0	0
Net amount	0	209
Other [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the consolidated balance sheet	349	901
Financial instruments	0	0
Cash collateral received	0	0
Net amount	$ 349	$ 901

Netting of Financial Instrume86

Netting of Financial Instruments - Schedule of Offsetting of Derivative Liabilities and Financial Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	$ 3,311,499	$ 3,135,915
Gross amounts offset in the consolidated balance sheet	(31,914)	(3,978)
Net amounts of liabilities presented in the consolidated balance sheet	3,279,585	3,131,937
CRT Agreements [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	199	0
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	199	0
Unpaid Principal Balance [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	3,276,854	3,130,328
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	3,276,854	3,130,328
Interest Rate Lock Commitments [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	45	337
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	45	337
Forward Purchase Contracts [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	19	3,774
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	19	3,774
Forward Sales Contracts [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	35,466	2,680
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	35,466	2,680
Derivatives Not Subject to Master Netting Arrangements [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	244	337
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	244	337
Put Options on Interest Rate Futures [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	79	39
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	79	39
Call Options on Interest Rate Futures [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	0	305
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	0	305
Netting [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	0	0
Gross amounts offset in the consolidated balance sheet	(31,914)	(3,978)
Net amounts of liabilities presented in the consolidated balance sheet	(31,914)	(3,978)
Derivatives Subject to Master Netting Arrangements [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	35,564	6,798
Gross amounts offset in the consolidated balance sheet	(31,914)	(3,978)
Net amounts of liabilities presented in the consolidated balance sheet	3,650	2,820
Derivative Liabilities Before Netting [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	35,808	7,135
Gross amounts offset in the consolidated balance sheet	(31,914)	(3,978)
Net amounts of liabilities presented in the consolidated balance sheet	3,894	3,157
Unamortized Debt Issuance Costs [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	(1,163)	(1,548)
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	(1,163)	(1,548)
Security Sold Under Agreements to Repurchase [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	3,275,691	3,128,780
Gross amounts offset in the consolidated balance sheet	0	0
Net amounts of liabilities presented in the consolidated balance sheet	$ 3,275,691	$ 3,128,780

Netting of Financial Instrume87

Netting of Financial Instruments - Summary of Derivative Liabilities, Financial Liabilities and Collateral Pledged by Counterparty (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	$ 3,279,585	$ 3,131,937
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(3,275,691)	(3,128,780)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	3,894	3,157
Interest Rate Lock Commitments [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	45	337
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	45	337
CRT Agreements [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	199	0
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	199	0
Credit Suisse First Boston Mortgage Capital LLC [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	972,451	893,947
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(972,003)	(893,854)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	448	93
Bank of America, N.A. [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	677,186	538,755
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(676,971)	(538,515)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	215	240
Citibank, N.A. [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	559,029	817,089
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(558,346)	(816,699)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	683	390
JPMorgan Chase & Co. [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	488,624	467,427
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(488,624)	(467,145)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	282
Morgan Stanley Bank, N.A. [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	208,488	214,086
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(208,488)	(214,086)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	0
Daiwa Capital Markets [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	207,908	165,480
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(207,908)	(165,480)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	0
Wells Fargo Na
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	66,458	0
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(66,384)	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	74	0
Barclays Capital [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	50,528	24,346
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(50,528)	(24,346)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	0
BNP Paribas [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	47,602	10,203
Gross amounts not offset in the consolidated balance sheet, Financial instruments	(47,602)	(10,203)
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	0
Raymond James And Associates [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	340	0
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	340	0
Bank Of Oklahoma Member
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	646	0
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	646	0
Deutsche Bank [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	263	0
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	263	0
Goldman Sachs [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	197	819
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	197	819
Other [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	784	72
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	784	72
Fannie Mae Capital Markets [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	0	924
Gross amounts not offset in the consolidated balance sheet, Financial instruments	0	0
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	0	924
Unamortized Debt Issuance Costs [Member]
Offsetting Liabilities [Line Items]
Net amount of liabilities presented in the consolidated balance sheet	(1,163)	(1,548)
Gross amounts not offset in the consolidated balance sheet, Financial instruments	1,163	1,548
Gross amounts not offset in the consolidated balance sheet, Cash collateral pledged	0	0
Net amount	$ 0	$ 0

Fair Value - Additional Informa

Fair Value - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Mortgage Loans On Real Estate [Line Items]
Initial interest rates	More than 4.5%
Mortgage loans description	Note interest rate pools of 50 basis points
Basis point for mortgage loan	0.50%
Fair value of exchangeable notes	$ 236.1	$ 230
Minimum [Member]
Mortgage Loans On Real Estate [Line Items]
Interest rate	4.50%
Fixed-rate mortgage loans	3.00%
Maximum [Member]
Mortgage Loans On Real Estate [Line Items]
Fixed-rate mortgage loans	4.50%

Fair Value - Summary of Financi

Fair Value - Summary of Financial Statement Items Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Assets:
Short-term investments	$ 16,877		$ 41,865
Mortgage-backed securities at fair value	531,612		322,473
Mortgage loans acquired for sale at fair value	1,461,029		1,283,795
Derivative assets:
Derivative assets	57,039		13,385
Derivative assets, Netting	(22,032)		(3,300)
Net amounts of assets presented in the consolidated balance sheet	35,007		10,085
Mortgage servicing rights at fair value	57,977	$ 61,071	66,584	$ 57,343	$ 49,448	$ 57,358
Liabilities:
Asset-backed financing of a VIE at fair value	325,939		247,690
Interest-only security payable at fair value	1,663		0
Derivative liabilities:
Derivative liabilities	3,894		3,157
Total derivative liabilities	35,808		7,135
Derivative liabilities, Netting	(31,914)		(3,978)
CRT Agreements [Member]
Derivative assets:
Derivative assets	0		593
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	0		593
Derivative liabilities:
Total derivative liabilities	199		0
Interest Rate Lock Commitments [Member]
Derivative assets:
Derivative assets	16,803		4,983
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	16,803		4,983
Derivative liabilities:
Total derivative liabilities	45		337
Forward Purchase Contracts [Member]
Derivative assets:
Derivative assets	35,768		2,444
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	35,768		2,444
Derivative liabilities:
Total derivative liabilities	19		3,774
Forward Sales Contracts [Member]
Derivative assets:
Derivative assets	43		2,604
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	43		2,604
Derivative liabilities:
Total derivative liabilities	35,466		2,680
Recurring [Member]
Assets:
Short-term investments	16,877		41,865
Mortgage-backed securities at fair value	531,612		322,473
Mortgage loans acquired for sale at fair value	1,461,029		1,283,795
Mortgage loans at fair value	2,035,997		2,555,788
Excess servicing spread purchased from PFSI	294,551		412,425
Derivative assets:
Derivative assets	57,039		13,385
Derivative assets, Netting	(22,032)		(3,300)
Net amounts of assets presented in the consolidated balance sheet	35,007		10,085
Mortgage servicing rights at fair value	57,977		66,584
Total Assets	4,433,050		4,693,015
Liabilities:
Asset-backed financing of a VIE at fair value	325,939		247,690
Interest-only security payable at fair value	1,663
Derivative liabilities:
Derivative liabilities	3,894		3,157
Total derivative liabilities	35,808		7,135
Derivative liabilities, Netting	(31,914)		(3,978)
Total liabilities	331,496		250,847
Recurring [Member] | Level 1 [Member]
Assets:
Short-term investments	16,877		41,865
Mortgage-backed securities at fair value	0		0
Mortgage loans acquired for sale at fair value	0		0
Mortgage loans at fair value	0		0
Excess servicing spread purchased from PFSI	0		0
Derivative assets:
Derivative assets	3,832		2,668
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	3,832		2,668
Mortgage servicing rights at fair value	0		0
Total Assets	20,709		44,533
Liabilities:
Asset-backed financing of a VIE at fair value	0		0
Interest-only security payable at fair value	0
Derivative liabilities:
Derivative liabilities	79		344
Total derivative liabilities	79		344
Derivative liabilities, Netting	0		0
Total liabilities	79		344
Recurring [Member] | Level 2 [Member]
Assets:
Short-term investments	0		0
Mortgage-backed securities at fair value	531,612		322,473
Mortgage loans acquired for sale at fair value	1,461,029		1,283,795
Mortgage loans at fair value	427,091		455,394
Excess servicing spread purchased from PFSI	0		0
Derivative assets:
Derivative assets	36,404		5,141
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	36,404		5,141
Mortgage servicing rights at fair value	0		0
Total Assets	2,456,136		2,066,803
Liabilities:
Asset-backed financing of a VIE at fair value	325,939		247,690
Interest-only security payable at fair value	0
Derivative liabilities:
Derivative liabilities	35,485		6,454
Total derivative liabilities	35,485		6,454
Derivative liabilities, Netting	0		0
Total liabilities	361,424		254,144
Recurring [Member] | Level 3 [Member]
Assets:
Short-term investments	0		0
Mortgage-backed securities at fair value	0		0
Mortgage loans acquired for sale at fair value	0		0
Mortgage loans at fair value	1,608,906		2,100,394
Excess servicing spread purchased from PFSI	294,551		412,425
Derivative assets:
Derivative assets	16,803		5,576
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	16,803		5,576
Mortgage servicing rights at fair value	57,977		66,584
Total Assets	1,978,237		2,584,979
Liabilities:
Asset-backed financing of a VIE at fair value	0		0
Interest-only security payable at fair value	1,663
Derivative liabilities:
Derivative liabilities	244		337
Total derivative liabilities	244		337
Derivative liabilities, Netting	0		0
Total liabilities	1,907		337
Recurring [Member] | CRT Agreements [Member]
Derivative assets:
Derivative assets			593
Derivative liabilities:
Derivative liabilities	199
Recurring [Member] | CRT Agreements [Member] | Level 1 [Member]
Derivative assets:
Derivative assets			0
Derivative liabilities:
Derivative liabilities	0
Recurring [Member] | CRT Agreements [Member] | Level 2 [Member]
Derivative assets:
Derivative assets			0
Derivative liabilities:
Derivative liabilities	0
Recurring [Member] | CRT Agreements [Member] | Level 3 [Member]
Derivative assets:
Derivative assets			593
Derivative liabilities:
Derivative liabilities	199
Recurring [Member] | Interest Rate Lock Commitments [Member]
Derivative assets:
Derivative assets	16,803		4,983
Derivative liabilities:
Derivative liabilities	45		337
Recurring [Member] | Interest Rate Lock Commitments [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Recurring [Member] | Interest Rate Lock Commitments [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Recurring [Member] | Interest Rate Lock Commitments [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	16,803		4,983
Derivative liabilities:
Derivative liabilities	45		337
Recurring [Member] | Forward Purchase Contracts [Member]
Derivative assets:
Derivative assets	35,768		2,444
Derivative liabilities:
Derivative liabilities	19		3,774
Recurring [Member] | Forward Purchase Contracts [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Recurring [Member] | Forward Purchase Contracts [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	35,768		2,444
Derivative liabilities:
Derivative liabilities	19		3,774
Recurring [Member] | Forward Purchase Contracts [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Recurring [Member] | Forward Sales Contracts [Member]
Derivative assets:
Derivative assets	43		2,604
Derivative liabilities:
Derivative liabilities	35,466		2,680
Recurring [Member] | Forward Sales Contracts [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Recurring [Member] | Forward Sales Contracts [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	43		2,604
Derivative liabilities:
Derivative liabilities	35,466		2,680
Recurring [Member] | Forward Sales Contracts [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
MBS Put Options [Member]
Derivative assets:
Derivative assets	593		93
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	593		93
MBS Put Options [Member] | Recurring [Member]
Derivative assets:
Derivative assets	593		93
MBS Put Options [Member] | Recurring [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	0		0
MBS Put Options [Member] | Recurring [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	593		93
MBS Put Options [Member] | Recurring [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	0		0
Put Options on Interest Rate Futures [Member]
Derivative assets:
Derivative assets	453		1,512
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	453		1,512
Derivative liabilities:
Total derivative liabilities	79		39
Put Options on Interest Rate Futures [Member] | Recurring [Member]
Derivative assets:
Derivative assets	453		1,512
Derivative liabilities:
Derivative liabilities	79		39
Put Options on Interest Rate Futures [Member] | Recurring [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	453		1,512
Derivative liabilities:
Derivative liabilities	79		39
Put Options on Interest Rate Futures [Member] | Recurring [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Put Options on Interest Rate Futures [Member] | Recurring [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities	0		0
Call Options on Interest Rate Futures [Member]
Derivative assets:
Derivative assets	3,379		1,156
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	3,379		1,156
Derivative liabilities:
Total derivative liabilities	0		305
Call Options on Interest Rate Futures [Member] | Recurring [Member]
Derivative assets:
Derivative assets	3,379		1,156
Derivative liabilities:
Derivative liabilities			305
Call Options on Interest Rate Futures [Member] | Recurring [Member] | Level 1 [Member]
Derivative assets:
Derivative assets	3,379		1,156
Derivative liabilities:
Derivative liabilities			305
Call Options on Interest Rate Futures [Member] | Recurring [Member] | Level 2 [Member]
Derivative assets:
Derivative assets	0		0
Derivative liabilities:
Derivative liabilities			0
Call Options on Interest Rate Futures [Member] | Recurring [Member] | Level 3 [Member]
Derivative assets:
Derivative assets	$ 0		0
Derivative liabilities:
Derivative liabilities			$ 0

Fair Value - Summary of Changes

Fair Value - Summary of Changes in Items Measured Using Level 3 Inputs on Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Assets:
Servicing received as proceeds from sales of mortgage loans	$ 1,847	$ 1,589	$ 5,147	$ 3,495
Recurring [Member]
Assets:
Beginning balance	2,436,402	2,623,353	2,584,642	2,453,768
Purchases and issuances	1,454	140,874	5,420	429,268
Repayments and sales	(405,061)	(86,542)	(517,052)	(145,153)
Capitalization of interest	22,134	9,922	52,443	20,130
Accrual of interest		5,819		9,570
ESS received pursuant to a recapture agreement with PFSI	1,690	1,319	3,601	2,565
Interest rate lock commitments issued, net	17,036	11,683	27,733	31,083
Servicing received as proceeds from sales of mortgage loans	1,847	1,588	5,147	3,495
Proceeds from CRT Agreements	(3,859)		(6,395)
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	(22,287)	7,489	(19,004)	19,057
Other factors	20,943	12,608	18,893	884
Total	(1,344)	20,097	(111)	19,941
Transfers of mortgage loans to REO and real estate held for investment	(53,954)		(112,409)
Transfers of mortgage loans to REO		(68,238)		(147,933)
Transfers of interest rate lock commitments to mortgage loans acquired for sale	(36,690)	3,247	(63,364)	(13,612)
Ending balance	1,979,655	2,663,122	1,979,655	2,663,122
Changes in fair value recognized during the period relating to assets	(3,535)	45,980	(24,164)	50,394
Recurring [Member] | CRT Agreements [Member]
Assets:
Beginning balance	(4,218)		593
Purchases and issuances	0		682
Repayments and sales	0		0
Capitalization of interest	0		0
ESS received pursuant to a recapture agreement with PFSI	0		0
Interest rate lock commitments issued, net	0		0
Servicing received as proceeds from sales of mortgage loans	0		0
Proceeds from CRT Agreements	(3,859)		(6,395)
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	0		0
Other factors	7,878		4,921
Total	7,878		4,921
Transfers of mortgage loans to REO and real estate held for investment	0		0
Transfers of interest rate lock commitments to mortgage loans acquired for sale	0		0
Ending balance	(199)		(199)
Changes in fair value recognized during the period relating to assets	7,878		4,921
Recurring [Member] | Interest Rate Lock Commitments [Member]
Assets:
Beginning balance	9,335	8,214	4,646	5,661
Purchases and issuances	0	0	0	0
Repayments and sales	0	0	0	0
Capitalization of interest	0	0	0	0
Accrual of interest		0		0
ESS received pursuant to a recapture agreement with PFSI	0	0	0	0
Interest rate lock commitments issued, net	17,036	11,683	27,733	31,083
Servicing received as proceeds from sales of mortgage loans	0	0	0	0
Proceeds from CRT Agreements	0		0
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	0	0	0	0
Other factors	27,076	(23,411)	47,742	(23,399)
Total	27,076	(23,411)	47,742	(23,399)
Transfers of mortgage loans to REO and real estate held for investment	0		0
Transfers of mortgage loans to REO		0		0
Transfers of interest rate lock commitments to mortgage loans acquired for sale	(36,690)	3,247	(63,364)	(13,612)
Ending balance	16,757	(267)	16,757	(267)
Changes in fair value recognized during the period relating to assets	16,757	(267)	16,757	(267)
Recurring [Member] | Interest-only security payable [Member]
Assets:
Beginning balance	675		0
Purchases and issuances	1,454		2,136
Repayments and sales	0		0
Capitalization of interest	0		0
ESS received pursuant to a recapture agreement with PFSI	0		0
Interest rate lock commitments issued, net	0		0
Servicing received as proceeds from sales of mortgage loans	0		0
Proceeds from CRT Agreements	0		0
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	0		0
Other factors	(466)		(473)
Total	(466)		(473)
Transfers of mortgage loans to REO and real estate held for investment	0		0
Transfers of interest rate lock commitments to mortgage loans acquired for sale	0		0
Ending balance	1,663		1,663
Changes in fair value recognized during the period relating to assets	(466)		(473)
Recurring [Member] | Mortgage loans at fair value [Member]
Assets:
Beginning balance	2,047,563	2,343,382	2,100,394	2,199,583
Purchases and issuances	0	0	0	241,981
Repayments and sales	(387,661)	(68,190)	(419,726)	(114,070)
Capitalization of interest	16,421	9,922	39,715	20,130
Accrual of interest		0		0
ESS received pursuant to a recapture agreement with PFSI	0	0	0	0
Interest rate lock commitments issued, net	0	0	0	0
Servicing received as proceeds from sales of mortgage loans	0	0	0	0
Proceeds from CRT Agreements	0		0
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	(22,287)	7,489	(19,004)	19,057
Other factors	8,824	22,579	19,936	28,196
Total	(13,463)	30,068	932	47,253
Transfers of mortgage loans to REO and real estate held for investment	(53,954)		(112,409)
Transfers of mortgage loans to REO		(68,238)		(147,933)
Transfers of interest rate lock commitments to mortgage loans acquired for sale	0	0	0	0
Ending balance	1,608,906	2,246,944	1,608,906	2,246,944
Changes in fair value recognized during the period relating to assets	(5,335)	32,807	654	54,574
Recurring [Member] | Excess servicing spread [Member]
Assets:
Beginning balance	321,976	222,309	412,425	191,166
Purchases and issuances	0	140,874	0	187,287
Repayments and sales	(17,400)	(18,352)	(97,326)	(31,083)
Capitalization of interest	5,713	0	12,728	0
Accrual of interest		5,819		9,570
ESS received pursuant to a recapture agreement with PFSI	1,690	1,319	3,601	2,565
Interest rate lock commitments issued, net	0	0	0	0
Servicing received as proceeds from sales of mortgage loans	0	0	0	0
Proceeds from CRT Agreements	0		0
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	0	0	0	0
Other factors	(17,428)	7,133	(36,877)	(403)
Total	(17,428)	7,133	(36,877)	(403)
Transfers of mortgage loans to REO and real estate held for investment	0		0
Transfers of mortgage loans to REO		0		0
Transfers of interest rate lock commitments to mortgage loans acquired for sale	0	0	0	0
Ending balance	294,551	359,102	294,551	359,102
Changes in fair value recognized during the period relating to assets	(17,428)	7,133	(29,667)	(403)
Recurring [Member] | Mortgage servicing rights [Member]
Assets:
Beginning balance	61,071	49,448	66,584	57,358
Purchases and issuances	0	0	2,602	0
Repayments and sales	0	0	0	0
Capitalization of interest	0	0	0	0
Accrual of interest		0		0
ESS received pursuant to a recapture agreement with PFSI	0	0	0	0
Interest rate lock commitments issued, net	0	0	0	0
Servicing received as proceeds from sales of mortgage loans	1,847	1,588	5,147	3,495
Proceeds from CRT Agreements	0		0
Changes in fair value included in income arising from:
Changes in instrument-specific credit risk	0	0	0	0
Other factors	(4,941)	6,307	(16,356)	(3,510)
Total	(4,941)	6,307	(16,356)	(3,510)
Transfers of mortgage loans to REO and real estate held for investment	0		0
Transfers of mortgage loans to REO		0		0
Transfers of interest rate lock commitments to mortgage loans acquired for sale	0	0	0	0
Ending balance	57,977	57,343	57,977	57,343
Changes in fair value recognized during the period relating to assets	$ (4,941)	$ 6,307	$ (16,356)	$ (3,510)

Fair Value - Fair Values and Re

Fair Value - Fair Values and Related Principal Amounts Due upon Maturity of Mortgage Loans Accounted for Under Fair Value Option (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Mortgage loans on real estate principal amount of delinquent loans
Unpaid principal balance of loans outstanding at period-end	$ 2,603,846	$ 3,292,043
Unpaid principal balance	2,603,846	3,292,043
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	(567,849)	(736,255)
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Fair value option loans held as assets, Total	2,035,997	2,555,788
Mortgage loans at fair value	2,035,997	2,555,788
Nonperforming mortgage loans [Member]
Mortgage loans on real estate principal amount of delinquent loans
Unpaid principal balance	1,314,229	1,702,548
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Mortgage loans at fair value	952,144	1,222,956
Mortgage loans acquired for sale at fair value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans on real estate principal amount of delinquent loans less than ninety days	1,388,201	1,235,433
Mortgage loans on real estate principal amount of delinquent loans
Not in foreclosure	461	333
In foreclosure	338	253
Unpaid principal balance of loans outstanding at period-end	1,389,000	1,236,019
Fair value option loans held as assets ninety days or less past due aggregate difference	72,125	47,842
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Not in foreclosure	(46)	(29)
In foreclosure	(50)	(37)
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	72,029	47,776
Fair value option loans held as assets ninety days or less past due	1,460,326	1,283,275
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Not in foreclosure	415	304
In foreclosure	288	216
Fair value option loans held as assets, Total	703	520
Mortgage loans at fair value	1,461,029	1,283,795
Mortgage loans acquired for sale at fair value [Member] | Nonperforming mortgage loans [Member]
Mortgage loans on real estate principal amount of delinquent loans
Unpaid principal balance of loans outstanding at period-end	799	586
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	(96)	(66)
Mortgage Loans at Fair Value Held in Consolidated VIE [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans on real estate principal amount of delinquent loans less than ninety days	416,195	454,935
Mortgage loans on real estate principal amount of delinquent loans
Not in foreclosure	0	0
In foreclosure	0	0
Unpaid principal balance	416,195	454,935
Fair value option loans held as assets ninety days or less past due aggregate difference	10,896	459
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Not in foreclosure	0	0
In foreclosure	0	0
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	10,896	459
Fair value option loans held as assets ninety days or less past due	427,091	455,394
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Not in foreclosure	0	0
In foreclosure	0	0
Mortgage loans at fair value	427,091	455,394
Mortgage Loans at Fair Value Held in Consolidated VIE [Member] | Nonperforming mortgage loans [Member]
Mortgage loans on real estate principal amount of delinquent loans
Unpaid principal balance	0	0
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	0	0
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Mortgage loans at fair value	0	0
Mortgage Loans and Mortgage Loans under Forward Purchase Agreements at Fair Value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgage loans on real estate principal amount of delinquent loans less than ninety days	873,422	1,134,560
Mortgage loans on real estate principal amount of delinquent loans
Not in foreclosure	510,475	640,343
In foreclosure	803,754	1,062,205
Unpaid principal balance	2,187,651	2,837,108
Fair value option loans held as assets ninety days or less past due aggregate difference	(216,660)	(257,122)
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Not in foreclosure	(147,147)	(181,283)
In foreclosure	(214,938)	(298,309)
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	(578,745)	(736,714)
Fair value option loans held as assets ninety days or less past due	656,762	877,438
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Not in foreclosure	363,328	459,060
In foreclosure	588,816	763,896
Mortgage loans at fair value	1,608,906	2,100,394
Mortgage Loans and Mortgage Loans under Forward Purchase Agreements at Fair Value [Member] | Nonperforming mortgage loans [Member]
Mortgage loans on real estate principal amount of delinquent loans
Unpaid principal balance	1,314,229	1,702,548
Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference
Fair Value, Option, Loans Held as Assets, Aggregate Difference, Total	(362,085)	(479,592)
Fair Value, Option, Loans Held as Assets, current through 89 days delinquent and 90 or more days delinquent
Mortgage loans at fair value	$ 952,144	$ 1,222,956

Fair Value - Summary of Chang92

Fair Value - Summary of Changes in Fair Value Included in Current Period Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	$ 24,226	$ 11,175	$ 39,275	$ 21,335
Net gain on investments	(15,487)	22,614	(19,385)	26,061
Asset-Backed Financing of the VIE at Fair Value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	(781)	51	536	(122)
Net gain on investments	890	3,991	(8,963)	3,222
Net Mortgage loan servicing fees	0	0	0	0
Total	109	4,042	(8,427)	3,100
Liabilities, Total [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	(781)	51	536	(122)
Net gain on investments	890	3,991	(8,963)	3,222
Net Mortgage loan servicing fees	0	0	0	0
Total	109	4,042	(8,427)	3,100
Short-term Investments [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	0	0	0	0
Net gain on investments	0	0	0	0
Net Mortgage loan servicing fees	0	0	0	0
Total	0	0	0	0
Mortgage-backed securities at fair value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	(750)	(23)	(738)	63
Net gain on investments	4,332	(6,702)	9,431	(5,186)
Net Mortgage loan servicing fees	0	0	0	0
Total	3,582	(6,725)	8,693	(5,123)
Mortgage loans acquired for sale at fair value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	47,003	(5,017)	89,008	18,064
Net interest income	0	0	0	0
Net gain on investments	0	0	0	0
Net Mortgage loan servicing fees	0	0	0	0
Total	47,003	(5,017)	89,008	18,064
Mortgage loans at fair value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	865	(310)	2,094	179
Net gain on investments	(13,511)	17,991	9,279	36,977
Net Mortgage loan servicing fees	0	0	0	0
Total	(12,646)	17,681	11,373	37,156
Excess servicing spread [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	0	0	0	0
Net gain on investments	(17,428)	8,589	(36,877)	2,342
Net Mortgage loan servicing fees	0	0	0	0
Total	(17,428)	8,589	(36,877)	2,342
MSRs at fair value [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	0	0	0	0
Net interest income	0	0	0	0
Net gain on investments	0	0	0	0
Net Mortgage loan servicing fees	(4,941)	6,306	(16,356)	(3,510)
Total	(4,941)	6,306	(16,356)	(3,510)
Assets, Total [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain on mortgage loans acquired for sale	47,003	(5,017)	89,008	18,064
Net interest income	115	(333)	1,356	242
Net gain on investments	(26,607)	19,878	(18,167)	34,133
Net Mortgage loan servicing fees	(4,941)	6,306	(16,356)	(3,510)
Total	$ 15,570	$ 20,834	$ 55,841	$ 48,929

Fair Value - Summary of Finan93

Fair Value - Summary of Financial Statement Items Re-measured at Fair Value on Nonrecurring Basis (Detail) - Nonrecurring [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate acquired in settlement of loans	$ 136,062	$ 173,662
MSRs at lower of amortized cost or fair value	332,354	145,187
Total Assets	468,416	318,849
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate acquired in settlement of loans	0	0
MSRs at lower of amortized cost or fair value	0	0
Total Assets	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate acquired in settlement of loans	0	0
MSRs at lower of amortized cost or fair value	0	0
Total Assets	0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate acquired in settlement of loans	136,062	173,662
MSRs at lower of amortized cost or fair value	332,354	145,187
Total Assets	$ 468,416	$ 318,849

Fair Value - Summary of Chang94

Fair Value - Summary of Changes in Fair Value Recognized in Assets that Measured at Fair Value on a Nonrecurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MSRs at lower of amortized cost or fair value	$ 23,170	$ (7,082)	$ 40,876	$ (703)
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate asset acquired in settlement of loans	(5,836)	(6,491)	(11,106)	(13,800)
MSRs at lower of amortized cost or fair value	(23,170)	7,082	(40,876)	703
Total assets, gains (losses) recognized	$ (29,006)	$ 591	$ (51,982)	$ (13,097)

Fair Value - Quantitative Summa

Fair Value - Quantitative Summary of Key Inputs Used in Valuation of Mortgage Loans at Fair Value (Detail) - Mortgage loans at fair value [Member]	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	2.50%	2.50%
Twelve-month projected housing price index change	2.70%	1.50%
Prepayment speed	0.10%	0.10%
Total prepayment speed	0.70%	0.50%
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	15.00%	15.00%
Twelve-month projected housing price index change	5.20%	5.10%
Prepayment speed	13.70%	9.60%
Total prepayment speed	25.40%	27.20%
Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	6.70%	7.10%
Twelve-month projected housing price index change	4.00%	3.60%
Prepayment speed	3.90%	3.70%
Total prepayment speed	19.00%	19.60%

Fair Value - Summary of Key Inp

Fair Value - Summary of Key Inputs Used in Determining Fair Value of ESS (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
UPB of underlying mortgage loans (in thousands)	$ 200,495	$ 176,404	$ 527,519	$ 400,057
Average servicing fee rate (in basis points)	0.25%	0.25%	0.26%	0.26%
Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pricing spread	7.30%	10.10%	7.30%	10.60%
Annual total prepayment speed	14.30%		14.30%		13.20%
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pricing spread	7.20%	9.00%	7.20%	9.00%
Annual total prepayment speed	8.30%		8.30%		9.20%
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pricing spread	7.60%	16.30%	7.60%	16.30%
Annual total prepayment speed	21.90%		21.90%		32.50%
Excess servicing spread [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
UPB of underlying mortgage loans (in thousands)			$ 36,151,940		$ 51,966,405
Average servicing fee rate (in basis points)			0.34%		0.32%
Average ESS rate (in basis points)			0.19%		0.17%
Pricing spread			5.50%		5.70%
Life (in years)			6 years 2 months 12 days		6 years 10 months 24 days
Annual total prepayment speed	12.50%		12.50%		9.60%
Excess servicing spread [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pricing spread			4.70%		4.80%
Life (in years)			1 year 7 months 6 days		1 year 4 months 24 days
Annual total prepayment speed	6.80%		6.80%		5.20%
Excess servicing spread [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pricing spread			5.90%		6.50%
Life (in years)			8 years 10 months 24 days		9 years
Annual total prepayment speed	37.30%		37.30%		52.40%

Fair Value - Quantitative Sum97

Fair Value - Quantitative Summary of Key Unobservable Inputs Used in Valuation of Interest Rate Lock Commitments (Detail)	Jun. 30, 2016	Dec. 31, 2015
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	74.90%	60.20%
Servicing fee multiple	1.80%	2.10%
Percentage of UPB	0.00%	0.50%
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	100.00%	100.00%
Servicing fee multiple	5.70%	6.20%
Percentage of UPB	1.40%	3.80%
Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull-through rate	88.00%	92.40%
Servicing fee multiple	4.50%	4.90%
Percentage of UPB	1.10%	1.20%

Fair Value - Key Assumptions Us

Fair Value - Key Assumptions Used in Determining Fair Value of MSRs at Time of Initial Recognition (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, MSR recognized	$ 1,847,000	$ 1,589,000	$ 5,147,000	$ 3,495,000
Fair value, UPB of underlying mortgage loans	$ 200,495,000	$ 176,404,000	$ 527,519,000	$ 400,057,000
Fair value, Weighted-average annual servicing fee rate (in basis points)	0.25%	0.25%	0.26%	0.26%
Amortized cost, MSR recognized	$ 58,262,000	$ 30,587,000	$ 91,124,000	$ 56,141,000
Amortized cost, UPB of underlying mortgage loans	$ 4,846,994,000	$ 3,346,010,000	$ 7,606,539,000	$ 5,628,766,000
Amortized cost, Weighted-average annual servicing fee rate (in basis points)	0.25%	0.25%	0.25%	0.26%
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, Pricing spread during period	7.20%	9.00%	7.20%	9.00%
Fair value inputs, Weighted average life during period	2 years	2 years 3 months 18 days	2 years	2 years 3 months 18 days
Fair value inputs, Annual prepayment speed during period	7.30%	8.30%	7.20%	8.30%
Fair value inputs, Annual per loan cost of servicing during period	$ 68,000	$ 62,000	$ 68,000	$ 62,000
Amortized cost, Pricing spread during period	7.20%	6.50%	7.20%	6.50%
Amortized cost, Life (in years)	1 year 6 months	2 years 7 months 6 days	1 year 4 months 24 days	1 year 3 months 18 days
Amortized cost, Annual prepayment speed during period	3.40%	7.60%	3.40%	7.60%
Amortized cost, Annual per loan cost of servicing during period	$ 68,000	$ 62,000	$ 68,000	$ 62,000
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, Pricing spread during period	7.60%	16.30%	7.60%	16.30%
Fair value inputs, Weighted average life during period	9 years 3 months 18 days	7 years 3 months 18 days	9 years 4 months 24 days	7 years 3 months 18 days
Fair value inputs, Annual prepayment speed during period	38.00%	34.20%	38.00%	34.20%
Fair value inputs, Annual per loan cost of servicing during period	$ 79,000	$ 62,000	$ 79,000	$ 62,000
Amortized cost, Pricing spread during period	12.60%	13.00%	12.60%	17.50%
Amortized cost, Life (in years)	12 years 2 months 12 days	7 years 3 months 18 days	12 years 3 months 18 days	7 years 8 months 12 days
Amortized cost, Annual prepayment speed during period	47.40%	28.60%	49.20%	51.00%
Amortized cost, Annual per loan cost of servicing during period	$ 79,000	$ 62,000	$ 79,000	$ 134,000
Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, Pricing spread during period	7.30%	10.10%	7.30%	10.60%
Fair value inputs, Weighted average life during period	6 years	6 years 9 months 18 days	5 years 8 months 12 days	6 years 3 months 18 days
Fair value inputs, Annual prepayment speed during period	14.20%	10.60%	15.10%	12.30%
Fair value inputs, Annual per loan cost of servicing during period	$ 74,000	$ 62,000	$ 71,000	$ 62,000
Amortized cost, Pricing spread during period	7.40%	8.10%	7.30%	8.30%
Amortized cost, Life (in years)	7 years 7 months 6 days	6 years 8 months 12 days	7 years 4 months 24 days	6 years 7 months 6 days
Amortized cost, Annual prepayment speed during period	9.40%	8.30%	9.80%	8.70%
Amortized cost, Annual per loan cost of servicing during period	$ 76,000	$ 62,000	$ 73,000	$ 63,000

Fair Value - Quantitative Sum99

Fair Value - Quantitative Summary of Key Assumptions Used in Valuation of MSRs as of Dates Presented, and Effect on Estimated Fair Value from Adverse Changes in Those Inputs (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance at end of period	$ 57,977,000	$ 66,584,000	$ 61,071,000	$ 57,343,000	$ 49,448,000	$ 57,358,000
UPB of underlying mortgage loans, Fair Value	$ 6,496,712,000	$ 6,458,684,000
Weighted-average annual servicing fee rate (in basis points), Fair value input	0.25%	0.25%
Weighted-average note interest rate, Fair value	4.70%	4.70%
Carrying value, Amortized cost	$ 413,481,000	$ 393,157,000		$ 337,394,000
UPB of underlying mortgage loans, Amortized cost	$ 40,590,719,000	$ 35,841,654,000
Weighted-average annual servicing fee rate (in basis points), Amortized cost	0.25%	0.26%
Weighted-average note interest rate, Amortized cost	3.90%	3.90%
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Pricing spread	7.60%	7.20%
Estimated fair value inputs, Prepayment speed	8.30%	9.20%
Estimated fair value inputs, Annual per-loan cost of servicing	$ 77,000	$ 68,000
Amortized cost, Pricing spread	7.60%	7.20%
Amortized cost, Weighted average life (in years)	3 years	1 year 3 months 18 days
Amortized cost, Prepayment speed	8.70%	8.10%
Amortized cost, Annual per-loan cost of servicing	$ 77,000	$ 68,000
Minimum [Member] | Mortgage service rights [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Weighted average life (in years)	3 years 2 months 12 days	2 years 6 months
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Pricing spread	12.60%	10.20%
Estimated fair value inputs, Prepayment speed	21.90%	32.50%
Estimated fair value inputs, Annual per-loan cost of servicing	$ 78,000	$ 68,000
Amortized cost, Pricing spread	13.10%	10.70%
Amortized cost, Weighted average life (in years)	6 years 9 months 18 days	7 years 8 months 12 days
Amortized cost, Prepayment speed	26.80%	51.50%
Amortized cost, Annual per-loan cost of servicing	$ 78,000	$ 68,000
Maximum [Member] | Mortgage service rights [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Weighted average life (in years)	5 years 8 months 12 days	6 years 1 month 6 days
Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Pricing spread	7.60%	7.20%
Estimated fair value inputs, Prepayment speed	14.30%	13.20%
Estimated fair value inputs, Annual per-loan cost of servicing	$ 78,000	$ 68,000
Amortized cost, Pricing spread	7.60%	7.30%
Amortized cost, Weighted average life (in years)	6 years 6 months	7 years 2 months 12 days
Amortized cost, Prepayment speed	10.80%	9.60%
Amortized cost, Annual per-loan cost of servicing	$ 78,000	$ 68,000
Weighted Average [Member] | Mortgage service rights [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value inputs, Weighted average life (in years)	5 years 8 months 12 days	6 years 1 month 6 days
Pricing Spread [Member] | Effect On Value Of Five Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	$ (854,000)	$ (944,000)
Effect on value of percentage adverse change, Amortized cost	(6,312,000)	(6,411,000)
Pricing Spread [Member] | Effect On Value Of Ten Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(1,683,000)	(1,862,000)
Effect on value of percentage adverse change, Amortized cost	(12,441,000)	(12,635,000)
Pricing Spread [Member] | Effect On Value Of Twenty Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(3,271,000)	(3,621,000)
Effect on value of percentage adverse change, Amortized cost	(24,175,000)	(24,553,000)
Prepayment Speed [Member] | Effect On Value Of Five Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(1,739,000)	(1,793,000)
Effect on value of percentage adverse change, Amortized cost	(9,341,000)	(8,159,000)
Prepayment Speed [Member] | Effect On Value Of Ten Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(3,395,000)	(3,502,000)
Effect on value of percentage adverse change, Amortized cost	(18,315,000)	(16,024,000)
Prepayment Speed [Member] | Effect On Value Of Twenty Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(6,475,000)	(6,692,000)
Effect on value of percentage adverse change, Amortized cost	(35,243,000)	(30,938,000)
Cost of Servicing [Member] | Effect On Value Of Five Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(519,000)	(470,000)
Effect on value of percentage adverse change, Amortized cost	(3,334,000)	(2,742,000)
Cost of Servicing [Member] | Effect On Value Of Ten Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(1,038,000)	(940,000)
Effect on value of percentage adverse change, Amortized cost	(6,669,000)	(5,484,000)
Cost of Servicing [Member] | Effect On Value Of Twenty Percentage Adverse Change
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effect on value of percentage adverse change, Fair value input	(2,076,000)	(1,880,000)
Effect on value of percentage adverse change, Amortized cost	$ (13,337,000)	$ (10,968,000)

Mortgage Loans Acquired for 100

Mortgage Loans Acquired for Sale at Fair Value - Summary of Distribution of Company's Mortgage Loans Acquired for Sale at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	$ 1,461,029	$ 1,283,795
Mortgage loan acquired at unpaid principal balance	1,388,999	1,236,019
Mortgage loans pledged to secure: Assets sold under agreements to repurchase	1,441,956	1,268,455
Mortgage Loans Acquired for Sale [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans pledged to secure: Assets sold under agreements to repurchase	1,341,459	1,204,462
Mortgage loans pledged to secure mortgage loan participation and sale agreements	100,497	0
Mortgage loans pledged to secure Federal Home Loan Bank ("FHLB") advances	0	63,993
Agency-Eligible [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	816,248	540,947
Mortgage loan acquired at unpaid principal balance	776,828	525,192
Jumbo [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	8,088	54,613
Mortgage loan acquired at unpaid principal balance	8,009	54,096
Held for Sale to PLS - Government-Insured or Guaranteed [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	619,008	669,288
Mortgage loan acquired at unpaid principal balance	585,919	637,666
Commercial Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	12,132	14,590
Mortgage loan acquired at unpaid principal balance	12,263	14,461
Mortgage Loans Repurchased Pursuant to Representations and Warranties [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans acquired for sale at fair value	5,553	4,357
Mortgage loan acquired at unpaid principal balance	$ 5,980	$ 4,604

Mortgage Loans Acquired for 101

Mortgage Loans Acquired for Sale at Fair Value - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Sourcing fee on the unpaid principal balance	0.03%

Derivative Financial Instrum102

Derivative Financial Instruments - Derivative Assets and Liabilities and Related Margin Deposits Recorded within Derivative Assets and Derivative Liabilities (Detail) - USD ($)	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Notional amount	$ 0		$ 0
Total derivative assets instruments before netting	57,039,000		13,385,000
Derivative assets, Netting	(22,032,000)		(3,300,000)
Net amounts of assets presented in the consolidated balance sheet	35,007,000		10,085,000
Margin deposits with derivatives counterparties	9,882,000		678,000
Total derivative liabilities	35,808,000		7,135,000
Derivative liabilities, Netting	(31,914,000)		(3,978,000)
Derivative liabilities, Fair value, Total	3,894,000		3,157,000
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,658,813,000		970,067,000
Total derivative assets instruments before netting	16,803,000		4,983,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	16,803,000		4,983,000
Total derivative liabilities	45,000		337,000
Forward Sale Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	4,347,526,000	$ 3,466,697,000	2,450,642,000	$ 3,252,286,000	$ 2,958,492,000	$ 1,601,283,000
Total derivative assets instruments before netting	43,000		2,604,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	43,000		2,604,000
Total derivative liabilities	35,466,000		2,680,000
Forward Purchase Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	4,190,349,000	2,981,134,000	2,469,550,000	2,263,622,000	2,132,616,000	1,100,700,000
Total derivative assets instruments before netting	35,768,000		2,444,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	35,768,000		2,444,000
Total derivative liabilities	19,000		3,774,000
MBS Call Options [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,525,000,000	425,000,000	375,000,000	40,000,000	0	0
Total derivative assets instruments before netting	593,000		93,000
Total derivative liabilities	0		0
Swap Futures [Member]
Derivatives, Fair Value [Line Items]
Notional amount	12,500,000	12,500,000	0
Total derivative assets instruments before netting	0		0
Total derivative liabilities	0		0
Eurodollar Future Sale Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amount	1,543,000,000	1,734,000,000	1,755,000,000	5,984,000,000	6,355,000,000	7,426,000,000
Total derivative assets instruments before netting	0		0
Total derivative liabilities	0		0
Call Options on Interest Rate Futures [Member]
Derivatives, Fair Value [Line Items]
Notional amount	525,000,000	1,250,000,000	50,000,000	1,135,000,000	1,165,000,000	1,030,000,000
Total derivative assets instruments before netting	3,379,000		1,156,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	3,379,000		1,156,000
Total derivative liabilities	0		305,000
Put Options on Interest Rate Futures [Member]
Derivatives, Fair Value [Line Items]
Notional amount	425,000,000	1,525,000,000	1,600,000,000	1,273,000,000	1,020,000,000	275,000,000
Total derivative assets instruments before netting	453,000		1,512,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	453,000		1,512,000
Total derivative liabilities	79,000		39,000
CRT Agreements [Member]
Derivatives, Fair Value [Line Items]
Notional amount	8,976,961,000	$ 5,931,409,000	4,546,265,000	$ 740,153,000	$ 0	$ 0
Total derivative assets instruments before netting	0		593,000
Derivative assets, Netting	0		0
Net amounts of assets presented in the consolidated balance sheet	0		593,000
Total derivative liabilities	$ 199,000		$ 0

Derivative Financial Instrum103

Derivative Financial Instruments - Summary of Activity in Notional Amount for Derivative Arising from CRT Agreements and Derivative Contracts (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivatives, Fair Value [Line Items]
Balance, beginning of period			$ 0
Balance, end of period	$ 0		0
Forward Sales Contracts [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	3,466,697,000	$ 2,958,492,000	2,450,642,000	$ 1,601,283,000
Additions	21,138,542,000	14,047,534,000	35,292,415,000	23,877,061,000
Dispositions/expirations	(20,257,713,000)	(13,753,740,000)	(33,395,531,000)	(22,226,058,000)
Balance, end of period	4,347,526,000	3,252,286,000	4,347,526,000	3,252,286,000
Forward Purchase Contracts [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	2,981,134,000	2,132,616,000	2,469,550,000	1,100,700,000
Additions	15,361,702,000	9,885,504,000	25,430,142,000	16,933,180,000
Dispositions/expirations	(14,152,487,000)	(9,754,498,000)	(23,709,343,000)	(15,770,258,000)
Balance, end of period	4,190,349,000	2,263,622,000	4,190,349,000	2,263,622,000
MBS Put Options [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period		190,000,000		340,000,000
Additions		587,500,000		992,500,000
Dispositions/expirations		(410,000,000)		(965,000,000)
Balance, end of period		367,500,000		367,500,000
MBS Call Options [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	425,000,000	0	375,000,000	0
Additions	1,975,000,000	140,000,000	2,725,000,000	140,000,000
Dispositions/expirations	(875,000,000)	(100,000,000)	(1,575,000,000)	(100,000,000)
Balance, end of period	1,525,000,000	40,000,000	1,525,000,000	40,000,000
Swap Futures [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	12,500,000		0
Additions	12,500,000		25,000,000
Dispositions/expirations	(12,500,000)		(12,500,000)
Balance, end of period	12,500,000		12,500,000
Eurodollar Future Sale Contracts [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	1,734,000,000	6,355,000,000	1,755,000,000	7,426,000,000
Additions	0	185,000,000	80,000,000	285,000,000
Dispositions/expirations	(191,000,000)	(556,000,000)	(292,000,000)	(1,727,000,000)
Balance, end of period	1,543,000,000	5,984,000,000	1,543,000,000	5,984,000,000
Eurodollar Future Purchase Contracts [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period				800,000,000
Additions				0
Dispositions/expirations				(800,000,000)
Balance, end of period		0		0
Treasury Future Sale Contracts [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period		85,000,000		85,000,000
Additions		65,000,000		161,500,000
Dispositions/expirations		(110,000,000)		(206,500,000)
Balance, end of period		40,000,000		40,000,000
Call Options on Interest Rate Futures [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	1,250,000,000	1,165,000,000	50,000,000	1,030,000,000
Additions	275,000,000	1,635,000,000	1,575,000,000	2,275,000,000
Dispositions/expirations	(1,000,000,000)	(1,665,000,000)	(1,100,000,000)	(2,170,000,000)
Balance, end of period	525,000,000	1,135,000,000	525,000,000	1,135,000,000
Put Options on Interest Rate Futures [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	1,525,000,000	1,020,000,000	1,600,000,000	275,000,000
Additions	550,000,000	1,548,000,000	2,600,000,000	2,668,000,000
Dispositions/expirations	(1,650,000,000)	(1,295,000,000)	(3,775,000,000)	(1,670,000,000)
Balance, end of period	425,000,000	1,273,000,000	425,000,000	1,273,000,000
CRT Agreements [Member]
Derivatives, Fair Value [Line Items]
Balance, beginning of period	5,931,409,000	0	4,546,265,000	0
Additions	3,162,746,000	740,153,000	5,084,744,000	740,153,000
Dispositions/expirations	(117,194,000)	0	(654,048,000)	0
Balance, end of period	$ 8,976,961,000	$ 740,153,000	$ 8,976,961,000	$ 740,153,000

Derivative Financial Instrum104

Derivative Financial Instruments - Net Gains (Losses) Recognized on Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Gain Loss on mortgage loans acquired for sale [Member] | Interest Rate Lock Commitments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	$ 44,112	$ (11,728)	$ 75,475	$ 7,684
Fixed-rate assets and LIBOR- indexed repurchase agreements [Member] | Net gain on investments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	862	(1,255)	698	(11,294)
Credit Risk Transfer Agreements [Member] | Net gain on investments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	7,764	0	3,621	0
Mortgage loans acquired for sale at fair value [Member] | Gain Loss on mortgage loans acquired for sale [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	(29,210)	25,566	(59,882)	10,455
Mortgage service rights [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	27,433	(16,270)	57,394	(5,193)
Mortgage service rights [Member] | Net loan servicing fees [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivative financial instruments used as economic hedges	$ 27,433	$ (16,270)	$ 57,394	$ (5,193)

Mortgage Loans at Fair Value -

Mortgage Loans at Fair Value - Summary of Distribution of Company's Mortgage Loans at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Fair value	$ 2,035,997	$ 2,555,788
Unpaid principal balance	2,603,846	3,292,043
Assets sold under agreements to repurchase	3,971,644	3,868,899
Asset-backed financing of a VIE at fair value and FHLB advances	427,091	455,394
Mortgage loans acquired for sale at fair value [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	1,461,029	1,283,795
Assets sold under agreements to repurchase	1,589,798	2,067,341
Fixed interest rate jumbo mortgage loans held in a VIE [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	427,091	455,394
Unpaid principal balance	416,195	454,935
Nonperforming mortgage loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	952,144	1,222,956
Unpaid principal balance	1,314,229	1,702,548
Performing mortgage loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	656,762	877,438
Unpaid principal balance	873,422	1,134,560
Performing mortgage loans [Member] | Fixed interest rate [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	313,064	417,658
Unpaid principal balance	413,063	535,610
Performing mortgage loans [Member] | Interest rate step-up [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	233,925	299,569
Unpaid principal balance	333,517	412,749
Performing mortgage loans [Member] | Adjustable-rate/hybrid [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	109,773	160,051
Unpaid principal balance	126,842	185,997
Performing mortgage loans [Member] | Balloon [Member]
Financing Receivable, Recorded Investment [Line Items]
Fair value	0	160
Unpaid principal balance	$ 0	$ 204

Mortgage Loans at Fair Value106

Mortgage Loans at Fair Value - Summary of Certain Concentrations of Credit Risk in Portfolio of Distressed Mortgage Loans at Fair Value (Detail)	Jun. 30, 2016	Dec. 31, 2015
Risks And Uncertainties [Abstract]
Portion of mortgage loans originated between 2005 and 2007	71.00%	72.00%
Percentage of fair value of mortgage loans with unpaid-principal balance-to-current-property-value in excess of 100%	42.00%	48.00%

Mortgage Loans at Fair Value107

Mortgage Loans at Fair Value - Summary of Certain Concentrations of Credit Risk in Portfolio of Distressed Mortgage Loans at Fair Value (Parenthetical) (Detail)	Jun. 30, 2016	Dec. 31, 2015
Risks And Uncertainties [Abstract]
Percentage of fair value of mortgage loans	100.00%	100.00%
Percentage of contribution by states in mortgage loans	5.00%	5.00%

Real Estate Acquired in Sett108

Real Estate Acquired in Settlement of Loans - Summary of Financial Information Relating to REO (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Real Estate [Abstract]
Balance at beginning of period	$ 327,212	$ 317,536	$ 341,846	$ 303,228
Transfers from mortgage loans at fair value and advances	53,558	71,961	114,052	158,078
Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment	(8,082)	(1,292)	(12,266)	(1,293)
Results of REO:
Valuation adjustments, net	(7,283)	(6,606)	(17,928)	(18,006)
Gain on sale, net	4,718	4,800	9,327	10,368
Total gain (loss), net	(2,565)	(1,806)	(8,601)	(7,638)
Proceeds from sales	(70,665)	(62,121)	(135,573)	(128,097)
Balance at end of period	299,458	324,278	299,458	324,278
REO pledged to secure assets sold under agreements to repurchase	50,126	55,420	50,126	55,420
REO held in a consolidated subsidiary whose stock is pledged to secure financings of such properties	$ 166,017	$ 147,631	$ 166,017	$ 147,631

Mortgage Servicing Rights - Sum

Mortgage Servicing Rights - Summary of MSRs Carried at Fair Value (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Servicing Asset At Fair Value Changes In Fair Value [Abstract]
Balance at beginning of period	$ 61,071	$ 49,448	$ 66,584	$ 57,358
Purchases	0	0	2,602	0
MSRs resulting from mortgage loan sales	1,847	1,589	5,147	3,495
Due to changes in valuation inputs used in valuation model	(2,508)	8,088	(11,460)	(107)
Other changes in fair value	(2,433)	(1,782)	(4,896)	(3,403)
Change in fair value, Total	(4,941)	6,306	(16,356)	(3,510)
Balance at period end	57,977	57,343	57,977	57,343
MSRs pledged to secure notes payable at period end	$ 57,977	$ 57,343	$ 57,977	$ 57,343

Mortgage Servicing Rights - 110

Mortgage Servicing Rights - Summary of MSRs Carried at Lower of Amortized Cost or Fair Value (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 422,676	$ 323,806	$ 404,101	$ 308,137
MSRs resulting from mortgage loan sales	58,262	30,587	91,124	56,141
Amortization	(15,531)	(9,988)	(29,818)	(19,580)
Sales	(106)	0	(106)	(293)
Balance at end of period	465,301	344,405	465,301	344,405
Balance at beginning of period	(28,650)	(14,093)	(10,944)	(7,714)
Additions	(23,170)	7,082	(40,876)	703
Balance at end of period	(51,820)	(7,011)	(51,820)	(7,011)
MSRs, net	413,481	337,394	413,481	337,394	$ 393,157
Fair value at beginning of period	405,635	327,703	424,154	322,230
Fair value at period end	417,094	362,908	417,094	362,908
Mortgage servicing rights [Member]
Servicing Asset at Amortized Cost, Balance [Roll Forward]
MSRs pledged to secure notes payable at period end	$ 413,481	$ 337,394	$ 413,481	$ 337,394

Mortgage Servicing Rights - 111

Mortgage Servicing Rights - Summary of Company's Estimate of Future Amortization of Existing MSRs Carried at Amortized Cost (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Servicing Asset Future Amortization Expense Abstract [Abstract]
2,017	$ 63,951
2,018	54,865
2,019	48,042
2,020	42,175
2,021	37,231
Thereafter	219,037
Total	$ 465,301

Mortgage Servicing Rights - 112

Mortgage Servicing Rights - Summary of Net Mortgage Loan Servicing Fees Relating to MSRs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Transfers And Servicing [Abstract]
Contractually-specified servicing fees	$ 29,991	$ 24,490	$ 57,770	$ 46,077

Assets Sold Under Agreements113

Assets Sold Under Agreements to Repurchase - Summary of Financial Information Relating to Assets Sold under Agreements to Repurchase (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Assets Sold under Agreements to Repurchase [Line Items]
Weighted-average interest rate	2.17%	2.25%	2.19%	2.25%
Average balance	$ 3,268,774,000	$ 3,172,806,000	$ 3,033,038,000	$ 3,061,923,000
Total interest expense	22,056,000	20,208,000	42,468,000	39,120,000
Maximum daily amount outstanding	4,331,706,000	$ 3,511,918,000	4,402,724,000	$ 3,842,167,000
Amount outstanding	3,276,854,000		3,276,854,000		$ 3,130,328,000
Unamortized debt issuance costs	(27,000)		(27,000)		(92,000)
Assets sold under agreements to repurchase, At year end	3,275,691,000		$ 3,275,691,000		$ 3,128,780,000
Weighted-average interest rate			2.26%		2.33%
Available borrowing capacity, Committed			$ 488,906,000		$ 231,913,000
Available borrowing capacity, Uncommitted			895,213,000		661,756,000
Available borrowing capacity			1,384,119,000		893,669,000
Margin deposits placed with counterparties included in Other assets	8,320,000		8,320,000		7,268,000
Fair value of assets securing agreements to repurchase	3,971,644,000		3,971,644,000		3,868,899,000
Assets Sold Under Agreements to Repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Unamortized debt issuance costs	(1,163,000)		(1,163,000)		(1,548,000)
Mortgage-backed securities at fair value [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of assets securing agreements to repurchase	531,612,000		531,612,000		313,753,000
Mortgage loans acquired for sale at fair value [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of assets securing agreements to repurchase	1,341,459,000		1,341,459,000		1,204,462,000
Mortgage loans at fair value [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of assets securing agreements to repurchase	1,589,798,000		1,589,798,000		2,067,341,000
Real estate acquired in settlement of loans [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of assets securing agreements to repurchase	216,143,000		216,143,000		283,343,000
Restricted Cash on Credit Risk Transfer Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of assets securing agreements to repurchase	$ 292,632,000		$ 292,632,000		$ 0

Assets Sold Under Agreements114

Assets Sold Under Agreements to Repurchase - Summary of Financial Information Relating to Assets Sold under Agreements to Repurchase (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Assets Sold Under Agreements to Repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amortization of debt issuance costs	$ 2.2	$ 2.2	$ 4.3	$ 4.9

Assets Sold Under Agreements115

Assets Sold Under Agreements to Repurchase - Summary of Maturities of Outstanding Assets Sold under Agreements to Repurchase by Facility Maturity Date (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	$ 3,276,854
Weighted average maturity (in months)	7 months
Within 30 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	$ 340,352
Over 30 to 90 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	438,615
Over 90 days to 180 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	809,278
Over 180 days to 1 year [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	1,436,236
Maturity One Year To Two Years [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Maturity of repurchase agreements	$ 252,373

Assets Sold Under Agreements116

Assets Sold Under Agreements to Repurchase - Summary of Assets Sold under Agreements to Repurchase by Counterparty (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 3,879
Mortgage acquired for sale Weighted-average repurchase agreement maturity	Sep. 13, 2016
Facility maturity	Sep. 13, 2016
Citibank, N.A. [Member] | Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 327,363
Mortgage acquired for sale Weighted-average repurchase agreement maturity	Aug. 6, 2016
Facility maturity	Oct. 20, 2016
Credit Suisse First Boston Mortgage Capital LLC [Member] | Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 158,462
Mortgage acquired for sale Weighted-average repurchase agreement maturity	Sep. 21, 2016
Facility maturity	Mar. 30, 2017
JPMorgan Chase & Co. [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 3,449
Weighted average maturity	Jul. 28, 2016
JPMorgan Chase & Co. [Member] | CRT Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 38,630
Weighted average maturity	Jul. 22, 2016
JPMorgan Chase & Co. [Member] | Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 131,702
Facility maturity	Jan. 26, 2017
Morgan Stanley Bank, N.A. [Member] | Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 14,924
Mortgage acquired for sale Weighted-average repurchase agreement maturity	Aug. 22, 2016
Facility maturity	Dec. 16, 2016
Daiwa Capital Markets [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 10,582
Weighted average maturity	Aug. 9, 2016
Wells Fargo, N.A. [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 3,070
Weighted average maturity	Jul. 17, 2016
Bank of America, N.A. [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 10,415
Weighted average maturity	Aug. 10, 2016
Bank of America, N.A. [Member] | CRT Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 30,102
Weighted average maturity	Jul. 15, 2016
Bank of America, N.A. [Member] | Mortgage loans acquired for sale, mortgage loans and REO sold under agreements to repurchase [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 37,040
Mortgage acquired for sale Weighted-average repurchase agreement maturity	Sep. 22, 2016
Facility maturity	Mar. 28, 2017
BNP Paribas Corporate & Institutional Banking [Member] | CRT Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Amount at risk	$ 18,103
Weighted average maturity	Jul. 14, 2016

Assets Sold Under Agreements117

Assets Sold Under Agreements to Repurchase - Covenant Compliance (Detail)	Jun. 30, 2016USD ($)
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Minimum net worth amount	$ 2,500,000
PennyMac Mortgage Investment Trust [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Net worth	1,360,827,000
Minimum net worth amount	860,000,000
Operating Partnership [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Net worth	1,401,552,000
Minimum net worth amount	700,000,000
PennyMac Holdings, LLC [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Net worth	784,290,000
Minimum net worth amount	250,000,000
PennyMac Corp. [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Net worth	401,634,000
Minimum net worth amount	$ 150,000,000

Mortgage Loan Participation 118

Mortgage Loan Participation and Sale Agreements - Summary of Mortgage Loan Participation and Sale Agreements (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
At period end:
Unamortized debt issuance costs	$ (27,000)		$ (27,000)		$ (92,000)
Mortgage loan participation and sale agreements, At year end	$ 96,335,000		$ 96,335,000		$ 0
Mortgage Loan Participation and Sale Agreement [Member]
During the period:
Weighted-average interest rate	1.69%	1.43%	1.68%	1.43%
Average balance	$ 70,701,000	$ 60,363,000	$ 69,649,000	$ 52,001,000
Total interest expense	333,000	266,000	661,000	473,000
Maximum daily amount outstanding	96,335,000	$ 148,032,000	97,672,000	$ 148,032,000
At period end:
Amount outstanding	96,335,000		96,335,000
Unamortized debt issuance costs	0		0
Mortgage loan participation and sale agreements, At year end	96,335,000		$ 96,335,000
Weighted-average interest rate			1.72%
Mortgage loans acquired for sale pledged to secure mortgage loan participation and sale agreements	$ 100,497,000		$ 100,497,000

Mortgage Loan Participation 119

Mortgage Loan Participation and Sale Agreements - Summary of Mortgage Loan Participation and Sale Agreements (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Mortgage Loan Participation and Sale Agreement [Member]
Mortgage Loan Participation And Sale Agreement [Line Items]
Amortization of debt issuance costs	$ 31,000	$ 47,000	$ 68,000	$ 99,000

Federal Home Loan Bank Advan120

Federal Home Loan Bank Advances - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Short-term Debt [Line Items]
Federal home loan bank advances		$ 400,000,000
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Membership termination description	For captive insurance companies that became members since the rule was proposed in 2014, including Copper Insurance, LLC, membership must be terminated within one year, and no additional advances may be made
Membership termination window	1 year
Additional advances in membership	$ 0

Federal Home Loan Bank Advan121

Federal Home Loan Bank Advances - Summary of FHLB Advances (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Federal Home Loan Banks [Abstract]
Weighted-average interest rate	0.49%	0.30%
Average balance	$ 49,019,000
Total interest expense	122,000
Maximum daily amount outstanding	201,130,000
Carrying value	$ 0	$ 183,000,000
Mortgage-backed securities		8,720,000
Mortgage loans acquired for sale at fair value		63,993,000
Mortgage loans at fair value		134,172,000
Fair value of assets securing FHLB advances, total		$ 206,885,000

Notes Payable - Additional Info

Notes Payable - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2016	Sep. 14, 2015	Mar. 31, 2015
Loan and Security Agreement with Citibank, N.A. [Member]
Short-term Debt [Line Items]
Maturity date of debt instrument	Oct. 20, 2016
Loan and Security Agreement with Barclays Bank PLC, [Member]
Short-term Debt [Line Items]
Maturity date of debt instrument	Sep. 13, 2016
Maximum [Member] | Loan and Security Agreement with Citibank, N.A. [Member]
Short-term Debt [Line Items]
Aggregate loan amount			$ 125,000,000
Maximum [Member] | Loan and Security Agreement with Barclays Bank PLC, [Member]
Short-term Debt [Line Items]
Aggregate loan amount		$ 200,000,000

Notes Payable - Summary of Fina

Notes Payable - Summary of Financial Information Relating to Note Payable (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
During the period:
Weighted-average interest rate	4.63%	4.18%	4.65%	4.18%
Average balance	$ 188,330,000	$ 104,797,000	$ 200,973,000	$ 52,981,000
Total interest expense	2,991,000	994,000	6,334,000	994,000
Maximum daily amount outstanding	211,103,000	$ 192,352,000	234,476,000	$ 192,352,000
Carrying value:
Amount outstanding	164,003,000		164,003,000		$ 236,107,000
Unamortized debt issuance costs	(27,000)		(27,000)		(92,000)
Balance	163,976,000		$ 163,976,000		$ 236,015,000
Weighted-average interest rate			4.32%		4.53%
MSRs pledged to secure notes payable	$ 471,458,000		$ 471,458,000		$ 459,741,000

Notes Payable - Summary of F124

Notes Payable - Summary of Financial Information Relating to Note Payable (Parenthetical) (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Notes payable [Member]
Debt Instrument [Line Items]
Amortization of debt issuance costs	$ 788,000	$ 354,000	$ 1,600,000	$ 354,000

Asset-Backed Financing of a 125

Asset-Backed Financing of a Variable Interest Entity at Fair Value - Summary of Financial Information Relating to Asset-Backed Financing of a VIE (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
During the period:
Carrying value	$ 325,939		$ 325,939		$ 247,690
Variable Interest Entities [Member]
During the period:
Carrying value	325,939		325,939		247,690
Asset-Backed Financing of the VIE at Fair Value [Member] | Variable Interest Entities [Member]
During the period:
Weighted-average fair value	334,233	$ 159,236	325,112	$ 162,361
Interest expense	$ 3,606	$ 1,301	$ 4,958	$ 2,885
Weighted-average effective interest rate	3.34%	3.23%	3.34%	3.53%
Carrying value	$ 325,939		$ 325,939		247,690
UPB	$ 317,305		$ 317,305		$ 248,284
Weighted-average interest rate			3.50%		3.50%

Exchangeable Senior Notes - Add

Exchangeable Senior Notes - Additional Information (Detail) - Exchangeable Senior Notes due May 1, 2020 [Member]	6 Months Ended
	Jun. 30, 2016USD ($)$ / shares
Debt Instrument [Line Items]
Issuance of debt through private offering	$ 250,000,000
Percentage of interest on debt	5.375%
Number of shares exchanged per exchangeable notes	33.8667
Principal amount of the exchangeable notes	$ 1,000
Increased in cash dividend | $ / shares	$ 0.57
Maturity date of debt instrument	May 1, 2020
Initial Exchangeable Rate [Member]
Debt Instrument [Line Items]
Number of shares exchanged per exchangeable notes	33.5149

Exchangeable Senior Notes - Sum

Exchangeable Senior Notes - Summary of Financial Information Relating to Exchangeable Senior Notes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
During the period:
Weighted-average UPB	$ 250,000	$ 250,000	$ 250,000	$ 250,000
Carrying value:
UPB	250,000		250,000		$ 250,000
Unamortized debt issuance costs	(27)		(27)		(92)
Exchangeable senior notes	245,564		245,564		245,054
Convertible Debt [Member]
During the period:
Interest expense	3,616	$ 3,601	7,228	$ 7,198
Carrying value:
Unamortized debt issuance costs	$ (4,436)		$ (4,436)		$ (4,946)

Exchangeable Senior Notes - 128

Exchangeable Senior Notes - Summary of Financial Information Relating to Exchangeable Senior Notes (Parenthetical) (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest Expense [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
Amortization of commitment fees and debt issuance costs	$ 257,000	$ 242,000	$ 509,000	$ 481,000

Liability for Losses under R129

Liability for Losses under Representations and Warranties - Summary of Company's Liability for Losses under Representations and Warranties (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Mortgage Banking [Abstract]
Balance, beginning of period	$ 18,712	$ 15,379	$ 20,171	$ 14,242
Provision for losses
Pursuant to mortgage loan sales	650	1,419	1,221	2,344
Adjustment to previously recorded amount due to change in estimate	0	0	(1,724)	0
Losses incurred	(104)	(84)	(410)	(102)
Recoveries	0	0	0	230
Balance, end of period	19,258	16,714	19,258	16,714
UPB of mortgage loans subject to representations and warranties at period end	$ 46,339,653	$ 37,431,575	$ 46,339,653	$ 37,431,575

Commitments and Contingencies -

Commitments and Contingencies - Company's Outstanding Contractual Loan Commitments (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Commitments to purchase mortgage loans:
Commitments to purchase mortgage loans acquired for sale	$ 1,658,813

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Feb. 28, 2016	Aug. 31, 2015
Schedule of Capitalization, Equity [Line Items]
Number of common stock shares Repurchased during period	1,200,000	6,300,000		7,400,000
Value of common stock shares Repurchased during period	$ 18,400,000	$ 82,834,000		$ 99,200,000
ATM Equity Offering Sales Agreement SM [Member]
Schedule of Capitalization, Equity [Line Items]
Number of common shares sold under Sales Agreement		0	0
Amount of common stock available for future issuance under Sales Agreement	$ 106,900,000	$ 106,900,000
Maximum [Member]
Schedule of Capitalization, Equity [Line Items]
Common stock shares Repurchase authorized amount					$ 200,000,000	$ 150,000,000

Net Interest Income - Summary o

Net Interest Income - Summary of Net Interest Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest income:
ESS purchased from PFSI, at fair value	$ 51,766	$ 45,333	$ 106,132	$ 86,018
Interest expense:
Notes payable	2,991	994	6,334	994
Interest expense, total	36,593	29,739	68,597	55,485
Net interest income	15,173	15,594	37,535	30,533
PennyMac Financial Services, Inc. [Member]
Interest income:
ESS purchased from PFSI, at fair value	5,713	5,818	12,728	9,570
Interest expense:
Notes payable	2,222	533	3,824	533
Interest expense, total	2,222	533	3,824	533
Nonaffiliates [Member]
Interest income:
Short-term investments	0	82	377	302
Mortgage-backed securities	2,756	2,505	5,468	5,139
Mortgage loans acquired for sale at fair value	13,596	10,315	22,860	17,416
Mortgage loans at fair value	23,042	22,171	52,228	43,725
Other	1,708	13	1,991	24
ESS purchased from PFSI, at fair value	46,053	39,515	93,404	76,448
Interest expense:
Assets sold under agreements to repurchase	22,056	20,208	42,468	39,120
Mortgage loan participation and sale agreements	333	266	661	473
FHLB advances	0	2	122	2
Notes payable	2,991	994	6,334	994
Asset-backed financings of VIEs at fair value	3,606	2,414	4,958	3,997
Exchangeable Notes	3,616	3,601	7,228	7,198
Interest shortfall on repayments of mortgage loans serviced for Agency securitizations	1,589	1,291	2,561	2,464
Placement fees on mortgage loan impound deposits	180	430	441	704
Interest expense, total	34,371	29,206	64,773	54,952
Nonaffiliates [Member] | Variable Interest Entities [Member]
Interest income:
Mortgage loans at fair value	$ 4,951	$ 4,429	$ 10,480	$ 9,842

Net Gain on Mortgage Loans A133

Net Gain on Mortgage Loans Acquired for Sale - Summary of Net Gain on Mortgage Loans Acquired for Sale (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Cash loss:
Mortgage loans	$ (18,461)	$ (51,218)	$ (21,480)	$ (58,762)
Hedging activities	(29,118)	18,713	(61,694)	6,186
Cash gain, net of effects of cash hedging, on sale of mortgage loans acquired for sale	(47,579)	(32,505)	(83,174)	(52,576)
Non cash gain:
Receipt of MSRs in mortgage loan sale transactions	60,109	32,176	96,271	59,636
Provision for losses relating to representations and warranties provided in mortgage loan sales
Pursuant to mortgage loans sales	(650)	(1,419)	(1,221)	(2,344)
Adjustment to previously recorded amount due to change in estimate	0	0	1,724	0
Change in fair value during the period of financial instruments held at period end:
IRLCs	7,423	(8,481)	12,111	(5,927)
Mortgage loans	5,015	14,551	11,752	18,277
Hedging derivatives	(92)	6,853	1,812	4,269
Total non cash portion of gain on mortgage loans acquired for sale	12,346	12,923	25,675	16,619
Net gain on mortgage loans acquired for sale	$ 24,226	$ 11,175	$ 39,275	$ 21,335

Net (Loss) Gain on Investmen134

Net (Loss) Gain on Investments - Summary of Net (Loss) Gain on Investments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net (loss) gain on investments:
Net (loss) gain on investments	$ (15,487)	$ 22,614	$ (19,385)	$ 26,061
Nonaffiliates [Member]
Net (loss) gain on investments:
Mortgage-backed securities	4,332	(6,702)	9,431	(5,186)
Mortgage loans at fair value	(13,463)	30,068	932	47,254
CRT Agreements	7,764	0	3,621	0
Asset-backed financing of a VIE at fair value	890	3,991	(8,963)	3,222
Hedging derivatives	862	(1,255)	698	(11,294)
Net (loss) gain on investments	337	14,025	14,066	23,719
PennyMac Financial Services, Inc. [Member]
Net (loss) gain on investments:
Net (loss) gain on investments	(15,824)	8,589	(33,451)	2,342
Variable Interest Entities [Member] | Nonaffiliates [Member]
Net (loss) gain on investments:
Mortgage loans at fair value	$ (48)	$ (12,077)	$ 8,347	$ (10,277)

Net Mortgage Loan Servicing 135

Net Mortgage Loan Servicing Fees - Summary of Net Loan Servicing Fees (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Components of Net Servicing Fee Income [Line Items]
Servicing fees	$ 31,578	$ 25,887	$ 60,450	$ 48,516
MSR recapture fee from PFSI	311	0	440	0
Effect of MSRs:
Amortization	(15,531)	(9,988)	(29,818)	(19,580)
Additions	(23,170)	7,082	(40,876)	703
Gain on sale	11	0	11	83
Carried at fair value-change in fair value	(4,941)	6,306	(16,356)	(3,510)
Total Effect of MSRs			(29,656)	(27,497)
Net mortgage loan servicing fees	15,691	13,017	31,245	21,019
Average servicing portfolio	45,647,524	35,742,835	44,531,795	35,215,677
Mortgage service rights [Member]
Effect of MSRs:
Gains on hedging derivatives	27,433	(16,270)	57,394	(5,193)
Total Effect of MSRs	$ (16,198)	$ (12,870)	$ (29,645)	$ (27,497)

Share-Based Compensation Plans

Share-Based Compensation Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restricted Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based share compensation plan, and compensation expense	$ 2	$ 1.1	$ 3	$ 3.7
Number of share units granted	330,076	294,684	330,076	294,684
Restricted share units, grant date fair value	$ 6.3	$ 6.3	$ 6.3	$ 6.3
Units vested	222,533	226,700	298,581	301,763
Performance-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share units granted			112,079

Other Expenses - Summary of Oth

Other Expenses - Summary of Other Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Non operating Income Expense [Line Items]
Total other expenses	$ 6,515	$ 5,196	$ 12,151	$ 10,052
Real Estate Held for Investment [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	930	0	1,487	0
Mortgage Loan Origination [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	1,557	1,176	2,678	2,129
Common Overhead Allocation from PFSI [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	2,434	2,546	4,996	4,937
Technology [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	332	311	766	603
Insurance [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	316	302	634	675
Other [Member]
Other Non operating Income Expense [Line Items]
Total other expenses	$ 946	$ 861	$ 1,590	$ 1,708

Other Expenses - Summary of 138

Other Expenses - Summary of Other Expenses (Parenthetical) (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016
Other Non operating Income Expense [Line Items]
Management agreement amendment description		The Operating Partnership amended its management agreement to provide that the total costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four.
PNMAC Capital Management LLC [Member]
Other Non operating Income Expense [Line Items]
Waiver of overhead expenses	$ 700,000
Management agreement amendment description		The Operating Partnership amended its management agreement to provide that the total costs and expenses incurred by PFSI in any quarter and reimbursable by the Operating Partnership is capped at an amount equal to the product of (A) 70 basis points (0.0070), multiplied by (B) PMT’s shareholders’ equity (as defined in the management agreement) as of the last day of the month preceding quarter end, divided by four

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Examination [Line Items]
Effective income tax rate	35.40%	(11.90%)	(219.80%)	(67.30%)
Benefit from income taxes	$ 2,892	$ 2,983	$ 6,344	$ 14,311
Income (loss) before benefit from income taxes	(8,159)	25,088	2,885	21,268
Taxable REIT Subsidiary [Member]
Income Tax Examination [Line Items]
Benefit from income taxes	3,700	1,100	6,100	12,900
Income (loss) before benefit from income taxes	$ (9,300)	$ (2,600)	$ (15,300)	$ (31,300)

Segments and Related Informa140

Segments and Related Information - Financial Highlights by Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Net investment income:
Interest income	$ 51,766	$ 45,333	$ 106,132	$ 86,018
Interest expense	(36,593)	(29,739)	(68,597)	(55,485)
Net interest income	15,173	15,594	37,535	30,533
Net gain on mortgage loans acquired for sale	24,226	11,175	39,275	21,335
Net (loss) gain on investments	(15,487)	22,614	(19,385)	26,061
Net mortgage loan servicing fees	15,691	13,017	31,245	21,019
Other income (loss)	8,015	7,365	11,164	8,474
Net investment income	47,618	69,765	99,834	107,422
Expenses:
Mortgage loan fulfillment, servicing and management fees payable to PFSI	40,737	33,248	70,477	63,787
Other	15,040	11,429	26,472	22,367
Total expenses	55,777	44,677	96,949	86,154
Pre-tax income (loss)	(8,159)	25,088	2,885	21,268
Total assets at period end	5,767,562	6,677,374	5,767,562	6,677,374	$ 5,826,924
Correspondent production [Member]
Net investment income:
Interest income	13,415	8,997	22,439	16,109
Interest expense	(7,951)	(4,763)	(13,070)	(8,583)
Net interest income	5,464	4,234	9,369	7,526
Net gain on mortgage loans acquired for sale	24,226	11,175	39,275	21,335
Net (loss) gain on investments	0	0	0	0
Net mortgage loan servicing fees	0	0	0	0
Other income (loss)	8,535	7,352	15,373	12,703
Net investment income	38,225	22,761	64,017	41,564
Expenses:
Mortgage loan fulfillment, servicing and management fees payable to PFSI	19,710	15,785	33,064	28,956
Other	2,082	1,754	3,609	2,938
Total expenses	21,792	17,539	36,673	31,894
Pre-tax income (loss)	16,433	5,222	27,344	9,670
Total assets at period end	1,492,171	2,243,570	1,492,171	2,243,570
Investment activities [Member]
Net investment income:
Interest income	38,351	36,336	83,693	69,909
Interest expense	(28,642)	(24,976)	(55,527)	(46,902)
Net interest income	9,709	11,360	28,166	23,007
Net gain on mortgage loans acquired for sale	0	0	0	0
Net (loss) gain on investments	(15,487)	22,614	(19,385)	26,061
Net mortgage loan servicing fees	15,691	13,017	31,245	21,019
Other income (loss)	(520)	13	(4,209)	(4,229)
Net investment income	9,393	47,004	35,817	65,858
Expenses:
Mortgage loan fulfillment, servicing and management fees payable to PFSI	21,027	17,463	37,413	34,831
Other	12,958	9,675	22,863	19,429
Total expenses	33,985	27,138	60,276	54,260
Pre-tax income (loss)	(24,592)	19,866	(24,459)	11,598
Total assets at period end	$ 4,275,391	$ 4,433,804	$ 4,275,391	$ 4,433,804

Supplemental Cash Flow Infor141

Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Additional Cash Flow Elements And Supplemental Cash Flow Information [Abstract]
Cash paid for interest			$ 76,198	$ 53,449
Income taxes paid, net			388	401
Non-cash investing activities:
Receipt of MSRs as proceeds from sales of mortgage loans	$ 60,109	$ 32,176	96,271	59,636
Transfer of mortgage loans and advances to real estate acquired in settlement of loans	53,558	71,961	114,052	158,078
Transfer of real estate acquired in settlement of mortgage loans to real estate held for investment			12,266	1,548
Receipt of ESS pursuant to recapture agreement with PFSI			3,601	2,565
Non-cash financing activities:
Transfer of mortgage loans at fair value financed under agreements to repurchase to REO financed under agreements to repurchase			15,191	24,972
Dividends payable	$ 32,082	$ 46,074	$ 32,082	$ 46,074

Regulatory Capital and Liqui142

Regulatory Capital and Liquidity Requirements - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2016USD ($)
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Minimum net worth amount	$ 2,500,000
Basis point	25.00%
Number of residential mortgage loans served	1-4
Unpaid Principal Balance [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Basis point	3.50%
Nonperforming mortgage loans [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Basis point	200.00%
Minimum [Member]
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Tangible net worth/ total assets ratio	6.00%

Regulatory Capital and Liqui143

Regulatory Capital and Liquidity Requirements - Summary of Capital and Liquidity Requirements by Agencies (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Fannie Mae Capital Markets [Member]
Capital Requirements By Agencies [Line Items]
Net Worth	$ 402,793
Required	$ 120,219
Total Assets Ratio	13.00%
Required	6.00%
Liquidity	$ 67,636
Required	16,481
Freddie Mac Capital Markets [Member]
Capital Requirements By Agencies [Line Items]
Net Worth	402,793
Required	$ 120,219
Total Assets Ratio	13.00%
Required	6.00%
Liquidity	$ 67,636
Required	$ 16,481