Mr. Cooper (COOP) 10-K 14 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Mar. 13, 2014	Jun. 28, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'WMIH	'	'
Entity Registrant Name	'WMI HOLDINGS CORP.	'	'
Entity Central Index Key	'0000933136	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	202,092,351	'
Entity Public Float	'	'	$161

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments held in trust, at fair value:	'	'
Fixed-maturity securities	$145,904	$201,660
Successor [Member]	'	'
Investments held in trust, at fair value:	'	'
Fixed-maturity securities	145,904	201,660
Cash equivalents held in trust	33,093	17,019
Total investments held in trust	178,997	218,679
Cash and cash equivalents	11,986	16,761
Fixed-maturity securities, at fair value	72,897	75,809
Restricted cash	115	25,169
Accrued investment income	1,110	1,698
Deferred offering costs	1,071	'
Other assets	1,462	1,800
Total assets	267,638	339,916
Liabilities:	'	'
Notes payable-principal	105,502	136,272
Notes payable-interest	1,143	1,476
Losses and loss adjustment reserves	44,314	82,524
Losses payable	2,517	2,140
Unearned premiums	1,394	225
Accrued ceding commissions	102	136
Loss contract fair market value reserve	46,319	52,217
Other liabilities	1,218	536
Total liabilities	202,509	275,526
Commitments and contingencies	'	'
Shareholders' equity:	'	'
Preferred stock, $0.00001 par value; 5,000,000 authorized, none issued and outstanding as of December 31, 2013 and 2012	'	'
Common stock, $0.00001 par value; 500,000,000 authorized, 201,842,351 and 201,156,078 shares issued and outstanding as of December 31, 2013 and 2012, respectively	2	2
Additional paid-in capital	77,142	76,741
Accumulated deficit	-12,015	-12,353
Total shareholders' equity	65,129	64,390
Total liabilities and shareholders' equity	$267,638	$339,916

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Preferred stock, par value	$0.00	'
Preferred stock, shares authorized	5,000,000	'
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	'
Common stock, shares authorized	500,000,000	'
Common stock, shares issued	201,842,351	201,156,078
Common stock, shares outstanding	201,842,351	201,156,078
Successor [Member]	'	'
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	201,842,351	201,156,078
Common stock, shares outstanding	201,842,351	201,156,078

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011
	Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]
Revenues:	'	'	'	'
Premiums earned	$14,394	$10,946	$6,177	$34,784
Net investment (loss) income	6,893	-778	3,172	8,597
Total revenues	21,287	10,168	9,349	43,381
Expenses:	'	'	'	'
Losses and loss adjustment expenses (benefit)	18,644	-6,159	11,467	47,321
Ceding commission expense	1,544	1,325	768	4,339
General and administrative expenses	4,637	5,665	547	2,594
Loss contract reserve fair market value change	-10,847	-5,898	'	'
Loss from contract termination	6,151	'	'	'
Interest expense	13,511	14,897	'	'
Total expenses	33,640	9,830	12,782	54,254
Income (loss) before federal income taxes	-12,353	338	-3,433	-10,873
Income tax expense (benefit)	'	'	'	'
Net income (loss)	($12,353)	$338	($3,433)	($10,873)
Basic and diluted net income (loss) per share attributable to common shareholders	($0.06)	$0	($3,433)	($10,873)
Shares used in computing basic and diluted net income (loss) per share	200,000,000	200,304,068	1,000	1,000

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Predecessor [Member]	Successor [Member]	Common Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Deficit) [Member]	Retained Earnings (Deficit) [Member]
In Thousands, except Share data				Predecessor [Member]	Successor [Member]	Predecessor [Member]	Successor [Member]	Predecessor [Member]	Successor [Member]
Beginning Balance at Dec. 31, 2010	'	$185,863	'	$1	'	$69,879	'	'	'
Beginning Balance, Shares at Dec. 31, 2010	'	'	'	1,000	'	'	'	'	'
Net income (loss)	'	-1,891	'	'	'	'	'	'	'
Ending Balance at Mar. 31, 2011	'	'	'	'	'	'	'	'	'
Beginning Balance at Dec. 31, 2010	'	185,863	'	1	'	69,879	'	115,983	'
Beginning Balance, Shares at Dec. 31, 2010	'	'	'	1,000	'	'	'	'	'
Net income (loss)	-10,873	-10,873	'	'	'	'	'	-10,873	'
Stock based compensation	0	'	'	'	'	'	'	'	'
Ending Balance at Dec. 31, 2011	'	174,990	'	'	'	'	'	105,110	'
Beginning Balance at Sep. 30, 2011	'	'	'	'	'	'	'	'	'
Net income (loss)	'	-1,350	'	'	'	'	'	'	'
Ending Balance at Dec. 31, 2011	'	174,990	'	1	'	69,879	'	105,110	'
Beginning Balance, Shares at Dec. 31, 2011	'	'	'	1,000	'	'	'	'	'
Net income (loss)	'	-3,433	'	'	'	'	'	-3,433	'
Allocated carve-out costs	'	23,108	'	'	'	'	'	23,108	'
Cancellation of Predecessor common stock	'	-194,665	'	-1	'	-69,879	'	-124,785	'
Cancellation of Predecessor common stock, shares	'	'	'	-1,000	'	'	'	'	'
Issuance of common stock	'	76,600	'	2	'	76,598	'	'	'
Issuance of common stock, Shares	'	'	'	200,000,000	'	'	'	'	'
Ending Balance at Mar. 19, 2012	'	171,557	76,600	1	'	69,879	'	101,677	'
Ending Balance, Shares at Mar. 19, 2012	'	1,000	200,000,000	1,000	'	'	'	'	'
Net income (loss)	'	'	472	'	'	'	'	'	'
Ending Balance at Mar. 31, 2012	'	'	'	'	'	'	'	'	'
Beginning Balance at Mar. 19, 2012	'	'	76,600	'	2	'	76,598	'	'
Beginning Balance, Shares at Mar. 19, 2012	'	'	200,000,000	'	200,000,000	'	'	'	'
Net income (loss)	'	'	-12,353	'	'	'	'	'	-12,353
Issuance of common stock under restricted share compensation arrangement, Shares	'	'	'	'	1,156,078	'	'	'	'
Stock based compensation	'	'	143	'	'	'	143	'	'
Ending Balance at Dec. 31, 2012	'	'	64,390	'	2	'	76,741	'	-12,353
Ending Balance, Shares at Dec. 31, 2012	'	'	201,156,078	'	201,156,078	'	'	'	'
Beginning Balance at Sep. 30, 2012	'	'	'	'	'	'	'	'	'
Net income (loss)	'	'	-9,951	'	'	'	'	'	'
Ending Balance at Dec. 31, 2012	'	'	64,390	'	'	'	'	'	'
Ending Balance, Shares at Dec. 31, 2012	'	'	201,156,078	'	'	'	'	'	'
Net income (loss)	'	'	-3,816	'	'	'	'	'	'
Ending Balance at Mar. 31, 2013	'	'	'	'	'	'	'	'	'
Beginning Balance at Dec. 31, 2012	'	'	64,390	'	2	'	76,741	'	-12,353
Beginning Balance, Shares at Dec. 31, 2012	201,156,078	'	201,156,078	'	201,156,078	'	'	'	'
Net income (loss)	338	'	338	'	'	'	'	'	338
Issuance of common stock under restricted share compensation arrangement	'	'	'	'	'	'	'	'	'
Issuance of common stock under restricted share compensation arrangement, Shares	'	'	'	'	686,273	'	'	'	'
Stock based compensation	401	'	401	'	'	'	401	'	'
Ending Balance at Dec. 31, 2013	'	'	65,129	'	2	'	77,142	'	-12,015
Ending Balance, Shares at Dec. 31, 2013	201,842,351	'	201,842,351	'	201,842,351	'	'	'	'
Beginning Balance at Sep. 30, 2013	'	'	'	'	'	'	'	'	'
Net income (loss)	'	'	7,516	'	'	'	'	'	'
Ending Balance at Dec. 31, 2013	'	'	$65,129	'	'	'	'	'	'
Ending Balance, Shares at Dec. 31, 2013	'	'	201,842,351	'	'	'	'	'	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011
	Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]
Cash flows from operating activities:	'	'	'	'
Net income (loss)	($12,353)	$338	($3,433)	($10,873)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities before reorganization activities:	'	'	'	'
Amortization of bond premium or discount	1,837	2,309	523	2,750
Net realized (gain) loss on sale of investments	-2,747	1,575	-176	-1,206
Unrealized (gain) loss on trading securities	1,410	3,492	-1,049	2,828
Equity-based compensation expense	143	401	'	'
Changes in assets and liabilities:	'	'	'	'
Accrued investment income	616	588	309	889
Deferred offering costs	'	-1,071	'	'
Other assets	1,588	338	-597	1,385
Change in cash held in trust	9,230	-16,074	7,209	3,998
Change in restricted cash	-25,169	25,054	'	'
Losses and loss adjustment reserves	-58,485	-38,210	-1,109	-47,917
Losses payable	-5,445	377	1,662	-6,498
Unearned premiums	-184	1,169	-47	-222
Accrued ceding commission expense	-330	-34	137	-259
Accrued interest on notes payable	1,476	-333	'	'
Loss contract fair market value reserve	-10,847	-5,898	'	'
Other liabilities	-3,514	682	414	2,033
Total adjustments	-90,421	-25,635	7,276	-42,219
Net cash (used in) provided by operating activities	-102,774	-25,297	3,843	-53,092
Cash flows from investing activities:	'	'	'	'
Purchase of investments	-202,847	-430,983	-38,506	-147,993
Proceeds from sales and maturities of investments	234,096	482,275	34,035	206,789
Net cash provided by (used in) investing activities	31,249	51,292	-4,471	58,796
Cash flows from financing activities:	'	'	'	'
Cash from (used in) reorganization activities	'	'	75,000	'
Notes payable-principal repayments	-2,064	-36,294	'	'
Notes payable-principal issued	8,336	5,524	'	'
Net cash (used in) provided by financing activities	6,272	-30,770	75,000	'
(Decrease) increase in cash and cash equivalents	-65,253	-4,775	74,372	5,704
Cash and cash equivalents, beginning of period	82,014	16,761	7,642	1,938
Cash and cash equivalents, end of period	16,761	11,986	82,014	7,642
Cash paid during the year:	'	'	'	'
Interest	3,699	9,707	'	'
Supplementary disclosure of non-cash investing and financing activities:	'	'	'	'
Notes payable issued in lieu of cash interest payments	$8,336	$5,524	'	'

The_Company_and_its_Subsidiari

The Company and its Subsidiaries	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
The Company and its Subsidiaries	'
	Note 1: The Company and its Subsidiaries
	WMI Holdings Corp.
	WMI Holdings Corp. (“WMIHC”) is a holding company organized and existing under the laws of the State of Washington. WMIHC, formerly known as Washington Mutual, Inc. (“WMI”), is the direct parent of WM Mortgage Reinsurance Company, Inc. (“WMMRC”), a Hawaii corporation, and WMI Investment Corp. (“WMIIC”), a Delaware corporation. As described below, WMIHC is a successor to WMI, as and to the extent described in the Plan (defined below) .
	Prior to September 26, 2008 (the “Petition Date”), WMI was a multiple savings and loan holding company that owned Washington Mutual Bank (“WMB”) and, indirectly, WMB’s subsidiaries, including Washington Mutual Bank fsb (“FSB”). As of the Petition Date, WMI also owned, directly or indirectly, several non-banking, non-debtor subsidiaries. Prior to the Petition Date, WMI was subject to regulation and examination by the Office of Thrift Supervision (the “OTS”). WMB and FSB, in turn, as depository institutions with federal thrift charters, were subject to regulation and examination by the OTS. In addition, WMI’s banking and non-banking subsidiaries were overseen by various federal and state authorities, including the Federal Deposit Insurance Corporation (“FDIC”).
	On September 25, 2008, the OTS, by order number 2008-36, closed WMB, appointed the FDIC as receiver for WMB (the “FDIC Receiver”) and advised that the FDIC Receiver was immediately taking possession of WMB’s assets. Immediately after its appointment as receiver, the FDIC Receiver sold substantially all the assets of WMB, including the stock of FSB, to JPMorgan Chase Bank, National Association (“JPMC”), pursuant to that certain Purchase and Assumption Agreement, Whole Bank, effective September 25, 2008, in exchange for payment of $1.88 billion and the assumption of all of WMB’s deposit liabilities. As a result of this transaction, substantially all of the business and accounting records of WMI became the property of JPMC and WMIHC had extremely limited access to such records. The foregoing notwithstanding, over time, limited access to such records was obtained through information sharing arrangements. Access to WMMRC’s historical records was not significantly affected by WMB’s closure and receivership.
	On the Petition Date, WMI and WMIIC (together, referred to herein as the “Debtors”) each filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the Bankruptcy Court for the District of Delaware (the “Court”) (Case No.08-12229 (MFW)).
	On December 12, 2011, the Debtors filed with the Court the Seventh Amended Joint Plan of Affiliated Debtors Pursuant to Chapter 11 of the United States Bankruptcy Code (the “Filed Plan”) and a related disclosure statement. The Filed Plan was subsequently modified and, on February 24, 2012, the Court entered an order (the “Confirmation Order”) confirming the Filed Plan as modified by such modifications (the “Plan”). On March 19, 2012 (the “Effective Date”), the Plan became effective and we emerged from bankruptcy with a new board of directors and certain new officers.
	In connection with the Plan becoming effective, among other things:
		•	approximately $6.5 billion was distributed to parties-in-interest on account of their allowed claims;
		•	WMIHC received $75.0 million in cash from certain creditors;
		•	WMIHC obtained access to a $125.0 million senior credit facility, approximately $25.0 million of which can be used for working capital and $100.0 million of which can be utilized in addition to the amount available for working capital for certain acquisitions and originations, subject to certain criteria and conditions set forth in the Financing Agreement (see Note 9: Financing Arrangements);
		•	WMIHC issued: (a) $110.0 million aggregate principal amount of its 13% Senior First Lien Notes due 2030 (the “First Lien Notes”) under an indenture, dated as of March 19, 2012 (the “First Lien Indenture”), between WMIHC and Wilmington Trust, National Association, as Trustee; and (b) $20.0 million aggregate principal amount of its 13% Senior Second Lien Notes due 2030 (the “Second Lien Notes” and, together with the First Lien Notes, the “Runoff Notes”) under an indenture, dated as of March 19, 2012 (the “Second Lien Indenture” and, together with the First Lien Indenture, the “Indentures”), between WMIHC and Law Debenture Trust Company of New York, as Trustee; and with limited exceptions the Runoff Notes are solely payable from Runoff Proceeds Distributions (as defined in the Indentures) received by WMIHC from WMMRC, and therefore are generally nonrecourse to WMIHC (see Note 8: Notes Payable);
		•	WMIHC issued 200,000,000 shares of common stock, of which 194,670,501 shares were issued to new WMIHC shareholders and 5,329,499 shares of common stock were issued and deposited into a Disputed Equity Escrow (as defined in the Plan); and
		•	based on our analysis, we believe WMIHC experienced an ownership change under Section 382 of the Internal Revenue Code (the “Code”). Prior to emergence, WMI abandoned the stock of WMB, thereby generating a worthless stock deduction of approximately $8.37 billion, which gives rise to a net operating loss (“NOL”) carry forward for the year ended December 31, 2012. We believe that the total available and utilizable NOL carry forward at December 31, 2013 was approximately $5.96 billion and at December 31, 2013 we believe that there was no limit under Section 382 of the Code on the use of these NOLs (see Note 6: Income Taxes).
	Upon emergence from bankruptcy on March 19, 2012, we had limited operations other than WMMRC’s legacy reinsurance business which is being operated in runoff and has not written any new business since September 26, 2008.
	WMMRC
	WMMRC is a wholly-owned subsidiary of WMIHC. Prior to August 2008 (at which time WMMRC became a direct subsidiary of WMI), WMMRC was a wholly-owned subsidiary of FA Out-of-State Holdings, Inc., a second-tier subsidiary of WMB and third-tier subsidiary of WMI. WMMRC is a pure captive insurance company domiciled in the State of Hawaii. WMMRC was incorporated on February 25, 2000, and received a Certificate of Authority, dated March 2, 2000, from the Insurance Commissioner of the State of Hawaii.
	WMMRC was originally organized to reinsure private mortgage insurance risk for seven primary mortgage insurers then offering private mortgage insurance on loans originated or purchased by former subsidiaries of WMI. The seven primary mortgage insurers are United Guaranty Residential Insurance Company (“UGRIC”), Genworth Mortgage Insurance Corporation (“GMIC”), Mortgage Guaranty Insurance Corporation (“MGIC”), PMI Mortgage Insurance Company (“PMI”), Radian Guaranty Incorporated (“Radian”), Republic Mortgage Insurance Company (“RMIC”) and Triad Guaranty Insurance Company (“Triad”).
	Due to deteriorating performance in the mortgage guarantee markets and the closure and receivership of WMB, the reinsurance agreements with each of the primary mortgage insurers were terminated or placed into runoff during 2008. The agreements with UGRIC and Triad were placed into runoff effective May 31, 2008. The agreements with all other primary mortgage insurers were placed into runoff effective September 26, 2008. As a result, effective September 26, 2008, WMMRC ceased assuming new mortgage risks from the primary carriers. Consequently, WMMRC’s continuing operations consist solely of the runoff of coverage associated with mortgages placed with the primary mortgage carriers prior to September 26, 2008. In runoff, an insurer generally writes no new business but continues to service its obligations under in force policies and otherwise continues as a licensed insurer. Management does not believe any additional adjustments to the carrying values of assets and liabilities which were recorded at fair market value as a result of fresh start accounting as of March 19, 2012 are required as a result of WMMRC’s runoff status.
	The reinsurance agreements with Triad and PMI were commuted on August 31, 2009 and October 2, 2012, respectively. The PMI transaction resulted in a loss from contract termination of $6.2 million dollars in 2012. In accordance with the commutation agreement between WMMRC and PMI, the trust assets were distributed in a manner such that PMI received $49.0 million in cash and WMMRC received all remaining trust assets equal to approximately $30.7 million. In 2012, $25.0 million of this cash was transferred to WMIHC as restricted cash upon approval for distribution by the Insurance Commissioner of the State of Hawaii, and was paid out during the current year under the terms of the Indentures. This cash payment represented approximately $3.7 million in interest due and payable on the First Lien Notes in the ordinary course, as well as approximately $21.3 million of principal.
	WMIIC
	WMIIC does not currently have any operations and is fully eliminated upon consolidation. Prior to September 26, 2008, WMIIC held a variety of securities and investments; however, such securities and investments were liquidated and the value thereof distributed in connection with implementing the Plan.

Significant_Accounting_Policie

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies	'
	Note 2: Significant Accounting Policies
	Basis of Presentation
	During the bankruptcy, WMI adopted so-called “Modified Exchange Act Reporting” under the Securities and Exchange Commission (the “SEC”) Staff’s Legal Bulletin No. 2 (“SLB 2”). Following the Effective Date, WMIHC continues to rely upon the guidance set forth in SLB 2 and we filed as of the Effective Date a Form 8-K pertaining to emergence from bankruptcy and subsequently filed a Form 8-K/A, which included WMIHC’s audited balance sheet as of the Effective Date. As provided under the SLB 2 Modified Exchange Act Reporting framework, WMIHC resumed filing periodic reports under the Exchange Act for all periods after the Effective Date of the Plan. Subsequent to the Effective Date, we have timely filed our Exchange Act periodic reports.
	In connection with the foregoing, as of March 19, 2012, the Company adopted fresh start accounting in accordance with Accounting Standards Codification (“ASC”) 852-10, Reorganizations (as described in Note 3: Fresh Start Accounting). The adoption of fresh start accounting resulted in the Company becoming a new entity for financial reporting purposes. Accordingly, the financial statements prior to March 19, 2012 are not comparable with the financial statements on or after March 19, 2012. Reference to “Successor” refers to the Company on or after the emergence from bankruptcy on March 19, 2012. Reference to “Predecessor” refers to WMMRC prior to the adoption of fresh start accounting and the emergence from bankruptcy.
	The accompanying consolidated financial statements have been prepared pursuant to the SEC’s rules and regulations and, as discussed, also under SLB 2. Certain information and footnote disclosures normally included in the financial statements and prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations; however, the Company believes that the disclosures included are adequate.
	All significant intercompany transactions and balances have been eliminated in preparing the consolidated financial statements.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Management has made significant estimates in certain areas, including valuing certain financial instruments and other assets, the determination of the contingent risk liabilities, and in determining appropriate insurance reserves. Actual results could differ substantially from those estimates.
	Fair Value of Certain Financial Instruments
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Generally, for assets that are reported at fair value, the Company uses quoted market prices or valuation models to estimate their fair value. These models incorporate inputs such as forward yield curves, market volatilities and pricing spreads, utilizing market-based inputs where readily available. The degree of management judgment involved in estimating the fair value of a financial instrument or other asset is dependent upon the availability of quoted market prices or observable market inputs. For financial instruments that are actively traded in the marketplace or whose values are based on readily available market value data, little judgment is necessary when estimating the instrument’s fair value. When observable market prices and data are not readily available, significant management judgment often is necessary to estimate fair value. In those cases, different assumptions could result in significant changes in valuation.
	The Company classifies certain fixed-maturity investments as trading securities, which are recorded at fair value. The remaining fixed-maturity investments treated as “hold-to-maturity” investments are recorded at amortized cost which, in the case of much of our investment holdings, approximates fair value. As such, changes in unrealized gains and losses on investments held at the balance sheet date are recognized and reported as a component of net investment income on the statement of operations. The Company believes fair value provides better matching of investment earnings to potential cash flow generated from the investment portfolio and reduces subjectivity related to evaluating other-than-temporary impairment on the Company’s investment portfolio.
	Fair Value Option
	The Company has recorded a liability related to a loss contract fair market value reserve (the “Reserve”) and applies Financial Accounting Standards Board (“FASB”) Fair Value Option accounting guidance to this liability. The Reserve was initially established in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The Company recorded this Reserve to properly value the net economic value of the WMMRC subsidiary as further described in Note 3: Fresh Start Accounting. At each reporting date, the Company reassesses the loss contract reserve which may result in a change to this line item in the balance sheet and statement of operations. Accordingly, any changes in the loss contract reserve at the balance sheet date are recognized and reported within the loss contract reserve fair market value change in the statement of operations. The Company believes Fair Value Option accounting provides better matching of earnings to potential cash flow generated from the WMMRC operating business.
	Fair Value Measurement
	The Company’s estimates of fair value for financial assets and financial liabilities are based on the framework established in the FASB Fair Value Measurements and Disclosures accounting guidance. The framework is based on the inputs used in valuation and requires that observable inputs be used in the valuations when available. The disclosure of fair value estimates in the fair value accounting guidance hierarchy is based on whether the significant inputs into the valuation are observable. In determining the level of the hierarchy in which the estimate is disclosed, the highest priority is given to unadjusted quoted prices in active markets and the lowest priority to unobservable inputs that reflect the Company’s significant market assumptions.
	The three levels of the hierarchy are as follows:
	Level 1—Inputs to the valuation methodology are quoted prices for identical assets or liabilities traded in active markets.
	Level 2—Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market corroborated inputs.
	Level 3—Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company’s own assumptions about the inputs that market participants would use.
	Fair values are based on quoted market prices when available (Level 1). The Company receives the quoted market prices from a third party, nationally recognized pricing service. When market prices are not available, the Company utilizes a pricing service to determine an estimate of fair value. The fair value is generally estimated using current market inputs for similar financial instruments with comparable terms and credit quality, commonly referred to as matrix pricing (Level 2). These valuation techniques involve some level of management estimation and judgment. The Company recognizes transfers between levels in the fair value hierarchy at the end of the reporting period.
	Fixed-Maturity Securities
	Fixed-maturity securities consist of U.S. Treasury securities, obligations of U.S. government agencies, commercial mortgage-backed securities and corporate debt securities. Fixed-maturity securities held in trust are for the benefit of the primary insurers as more fully described in Note 4: Insurance Activity. Investments in fixed-maturity securities are reported at their estimated fair values or amortized cost (as the case may be) and are classified as trading securities in accordance with applicable accounting guidance. Realized gains and losses on the sale of fixed-maturity securities are determined using the specific identification method and are reported as a component of net investment income within the statement of operations.
	Cash Equivalents and Investments Held in Trust
	Cash equivalents, which include highly liquid overnight money market instruments, and fixed-maturity securities are held in trust for the benefit of the primary insurers as more fully described in Note 3: Fresh Start Accounting, and Note 4: Insurance Activity and the following information regarding restrictions on distribution of net assets of subsidiaries.
	Third Party Restrictions on Distribution of Net Assets of Wholly-Owned Subsidiaries
	The net assets of WMMRC are subject to restrictions from distribution from multiple sources including the primary insurers who have approval control of distribution from the trust, the Insurance Commissioner of the State of Hawaii who has approval control prior to distributions or intercompany advances, and additional restrictions as described in Note 8: Notes Payable.
	Premium Recognition
	Premiums assumed are earned on a daily pro-rata basis over the underlying policy terms. Premiums assumed relating to the unexpired portion of policies in force at the balance sheet date are recorded as unearned premiums. Unearned premiums also include a reserve for post default premium reserves. Post default premium reserves occur when a loan is in a default position and the servicer continues to advance the premiums. If the loan ultimately goes to claim, the premiums advanced during the period of default are subject to recapture. The Company records a default premium reserve based on information provided by the underlying mortgage insurers when they provide information on the default premium reserve separately from other reserves. The change in the default premium reserve is reflected as a reduction or increase, as the case may be, in premiums assumed. The Company has recorded unearned premiums totaling $1.4 million and $0.2 million as of December 31, 2013 and 2012, respectively.
	The Company recognizes premium deficiencies when there is a probable loss on an insurance contract. Premium deficiencies are recognized if the sum of the present value of expected losses and loss adjustment expenses, unamortized deferred acquisition costs, and maintenance costs exceed unearned premiums and anticipated investment income. Premium deficiency reserves have been recorded totaling $2.4 million and $15.1 million as of December 31, 2013 and 2012, respectively.
	The Company’s premium deficiency analysis was performed on a single book basis and includes all book years and reinsurance treaties aggregated together using assumptions based on the actuarial best estimates at the balance sheet date. The calculation for premium deficiency requires significant judgment and includes estimates of future expected premiums, claims, loss adjustment expenses and investment income as of the balance sheet date. To the extent ultimate losses are higher or premiums are lower than estimated, additional premium deficiency reserves may be required in the future.
	Cash and Cash Equivalents
	Cash and cash equivalents include cash on hand, amounts due from banks, U.S. Treasury bills and overnight investments. Except as described above in Cash Equivalents and Investments Held in Trust, the Company considers all amounts that are invested in highly liquid over-night money market instruments to be cash equivalents. The FDIC insures amounts on deposit with each financial institution up to limits as prescribed by law. The Company may hold funds with financial institutions in excess of the FDIC insured amount, however, the Company has not experienced any losses in such accounts and management believes it is not exposed to any significant credit risk on cash and cash equivalents.
	Restricted Cash
	Restricted cash consists of amounts held for the express purposes of paying principal, interest and related fees on the Runoff Notes pursuant to the terms of the Indentures.
	Ceding Commission Expense
	The Company is required to pay a ceding commission to certain primary insurers pursuant to certain reinsurance agreements.
	Losses and Loss Adjustment Reserves
	The losses and loss adjustment reserve includes case basis estimates of reported losses and supplemental amounts for incurred but not reported losses (“IBNR”). A default is considered the incident (e.g., the failure to make timely payment of mortgage payments) that may give rise to a claim for mortgage insurance. In establishing the losses and loss adjustment reserve, the Company utilizes the findings of an independent consulting actuary. The consulting actuary estimates ultimate loss rates based upon industry data and claims and exposure data provided by the primary mortgage insurance carriers and assumptions of prepayment speed relative to loans reinsured by the Company. The fully developed ultimate loss rates are then applied to cumulative earned premium and reduced for cumulative losses and loss adjustment expenses paid to arrive at the liability for unpaid losses and loss adjustment expenses. Actuarial methods utilized by the consulting actuary to derive the ultimate loss rates, include the loss development method, simulated loss development method, Bornhuetter-Ferguson method and simulated Bornhuetter-Ferguson method on a paid and incurred basis. Due to the current condition of the mortgage insurance market, WMMRC has recorded reserves at the higher of (x) reserves estimated by the consulting actuary for each primary mortgage guaranty carrier and (y) ceded case reserves and IBNR levels reported by the primary mortgage guaranty carriers as of December 31, 2013 and 2012, respectively. Management believes that its aggregate liability for unpaid losses and loss adjustment expenses at period end represents its best estimate, based upon the available data, of the amount necessary to cover the current cost of losses. However, due to the inherent uncertainty arising from fluctuations in the persistency rate of mortgage insurance claims, the Company’s size and lack of prior operating history, external factors such as future changes in regional or national economic conditions, judicial decisions, federal and state legislation related to mortgage restructuring and foreclosure restrictions, claims denials and coverage rescissions by primary carriers and other factors beyond management’s control, it is not presently possible to determine whether actual loss experience will conform to the assumptions used in determining the estimated amounts for such liability at the balance sheet date. Accordingly, the ultimate liability could be significantly higher or lower, as the case may be, of the amount indicated in the financial statements and there can be no assurance that the reserve amounts recorded will be sufficient. As adjustments to these estimates become necessary, such adjustments are reflected in current operations.
	Loss Contract Fair Market Value Reserves
	A loss contract fair market value reserve relating to contractual obligations of WMMRC was established at March 19, 2012 as a result of applying Fresh Start Accounting (more fully described in Note 3: Fresh Start Accounting) and in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The fair market value of this reserve is analyzed quarterly and is adjusted accordingly. This adjustment to the reserve produces an expense or contra-expense in the statement of operations.
	Fresh Start Accounting
	The Company adopted fresh start accounting in accordance with ASC 852 (Reorganizations) (“ASC 852”). See Note 3: Fresh Start Accounting for a description of the Company’s application of this standard.
	Comprehensive Income (Loss)
	The Company has no comprehensive income (loss) other than the net income (loss) disclosed in the consolidated statement of operations.
	Earnings (Loss) Per Common Share
	Basic earnings (loss) per common share is computed by dividing net income (loss) applicable to the Company’s common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is computed by dividing net income (loss) applicable to the Company’s common shareholders by the weighted average number of common shares outstanding during the period and the effect of all dilutive common stock equivalents (of which we had zero). If common share equivalents existed, in periods where there is a net loss, diluted loss per common share would be equal to or less than basic loss per common share, since the effect of including any common share equivalents would be antidilutive.
	Share Based Compensation
	On May 22, 2012, WMIHC’s board of directors approved the 2012 Long-Term Incentive Plan (the “2012 Plan”) to award restricted stock to its non-employee directors and to have a plan in place for awards to executives and others in connection with the Company’s operations and future strategic plans. A total of 2 million shares of common stock were initially reserved for future issuance under the Plan, which became effective upon the board of directors approval on May 22, 2012. The 2012 Plan provides for the granting of restricted shares and other cash and share based awards. The value of restricted stock is determined using the fair market value of the shares on the issuance date.
	Income Taxes
	The Company follows the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future income tax consequences attributable to differences between the carrying amounts and tax bases of assets and liabilities and losses carried forward and tax credits. Deferred tax assets and liabilities are measured using enacted tax rates and laws applicable to the years in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided to the extent that it is more likely than not that deferred tax assets will not be realized.
	The Company recognizes the financial statement effects of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. Penalties and interest, of which there are none, would be reflected in income tax expense. Tax years are open to the extent the Company has net operating loss carry-forwards available to be utilized currently.
	Dividend Policy
	WMIHC has paid no dividends on or after the Effective Date and currently has no plans to pay a dividend. The Financing Agreement and the Note Purchase Agreement (as such are defined in Note 9: Financing Arrangements) include restrictions related to the payment of dividends.
	New Accounting Pronouncements
	In July 2013 the FASB issued Accounting Standards Update 2013-11, Presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This standard is effective for public entities for fiscal years and interim periods within those years beginning after December 15, 2013. The Company has reviewed this standard and determined it has no material impact on the Company’s consolidated financial position, results of operations, or disclosure requirements.
	In December 2013 the FASB issued Accounting Standards Update 2013-12, Definition of a Public Business Entity—An addition to the Master Glossary. This amendment has no effective date, but the term “public business entity” will be used in the 2014 Accounting Standards. The Company has reviewed this standard and determined it has no material impact on the Company’s consolidated financial position, results of operations, or disclosure requirements.

Fresh_Start_Accounting

Fresh Start Accounting	12 Months Ended
	Dec. 31, 2013
Reorganizations [Abstract]	'
Fresh Start Accounting	'
	Note 3: Fresh Start Accounting
	Under ASC 852, the application of fresh start accounting results in the allocation of reorganization value to the fair value of assets, and is required when (a) the reorganization value of assets immediately prior to confirmation of a plan of reorganization is less than the total of all post-petition liabilities and allowed claims and (b) the holders of voting shares immediately prior to the confirmation of the plan of reorganization receive less than 50 percent of the voting shares of the emerging entity. The Company adopted fresh start accounting as of the Effective Date, which represents the date on which all material conditions precedent to the effectiveness of the Plan were satisfied or waived. As of the Effective Date, the Company believes that it satisfied both of the aforementioned conditions.
	The Company’s reorganization value (“Equity Value”), upon emergence from bankruptcy, was determined to be $76.6 million, which represents management’s best estimate of fair value based on a calculation of the present value of the Company’s consolidated assets and liabilities as at March 19, 2012. As part of our fresh start reporting, we applied various valuation methodologies to calculate the reorganization value of the Successor. These methods included (a) the comparable company analysis, (b) the precedent transactions analysis and (c) the discounted cash flow analysis. The application of these methodologies requires certain key estimates, judgments and assumptions, including financial projections, the amount of cash available to fund operations and current market conditions. Such projections, judgments and assumptions are inherently subject to significant uncertainties and there can be no assurance that such estimates, assumptions and projections reflected in the valuation will be realized and actual results may vary materially.
	A significant difference exists between the Equity Value determined by management and the value determined by the Court in an opinion dated September 13, 2011 in which the Court expressed its view with respect to the Company’s value (including the value of the NOLs). While the NOL asset has been recorded on the Company’s opening balance sheet at the value assigned by the Court, management also has recorded a full valuation allowance relative to these assets. The valuation allowance was determined to be necessary as management is unable to identify potential earnings from its existing operations and assets which would allow the Company to benefit from the utilization of these NOLs now or in the future. In the event that earnings are recognized in future periods, the availability of NOLs could result in additional value to the shareholders. The utilization of NOLs may be subject to significant additional limits. See Note 6: Income Taxes for additional detail. No cash will be used for Plan-related liabilities as WMIHC is not liable for pre-petition claims under the terms of the Plan and the estimated minimum level of cash required for ongoing reserves was deducted from total projected cash to arrive at the amount of remaining or available cash. The Effective Date Equity Value of $76.6 million is intended to reflect a value that a willing buyer would pay for the Company’s assets immediately after emerging from bankruptcy.
	The value of a business is subject to uncertainties and contingencies that are difficult to predict and will fluctuate with changes in factors affecting the prospects of such a business. As a result, the estimates set forth herein are not necessarily indicative of actual outcomes, which may be significantly more or less favorable than those set forth herein. These estimates assume that the Company will continue as the owner and operator of these businesses and related assets and that such businesses and assets will be operated in accordance with WMMRC’s historical business practices, which is the basis for financial projections. The financial projections are based on projected market conditions and other estimates and assumptions including, but not limited to, general business, economic, competitive, regulatory, market and financial conditions, all of which are difficult to predict and generally beyond the Company’s control. Depending on the actual results of such factors, operations or changes in financial markets, these valuation estimates may differ significantly from that disclosed herein.
	The Company’s Equity Value was first allocated to its tangible assets and identifiable intangible assets and the excess (if any) of reorganization value over the fair value of tangible and identifiable intangible assets would be recorded as goodwill. Liabilities existing as of the Effective Date, other than deferred taxes, were recorded at the present value of amounts expected to be paid using appropriate risk adjusted interest rates. The only intangible asset identified related to reinsurance contracts which were held by WMMRC. The contracts were evaluated to determine whether the value attributable to such contracts was either above market or in a loss contract position. After taking such evaluation into consideration, a loss contract fair market value reserve totaling $63.1 million was recorded. WMMRC’s deferred taxes were determined in conformity with applicable income tax accounting standards.
	Material differences, including with respect to its business operations, financial performance, asset size and other factors, exist with respect to the pre-petition operations and financial position of WMI and its subsidiaries as compared with the post-emergence operations and financial position of the Company. In order to address such differences, in preparing these and future financial statements, management has concluded that it is appropriate to use the financial information of the Company’s wholly-owned subsidiary, WMMRC as the basis for its past and ongoing financial reporting. Information in these financial statements labeled as “Predecessor” refers to periods prior to the adoption of fresh start reporting, while those labeled as “Successor” refer to periods following the Company’s reorganization and emergence from bankruptcy.
	Adjustments recorded to the Predecessor, after giving effect to the implementation of the Plan and to record assets and liabilities at fair value pursuant to the adoption of fresh start accounting are summarized below:
	(dollars in thousands except per share amounts)		Predecessor		Reorganization			Fair Value			Successor
			March 19,		Adjustments  (a)			Adjustments (b)			March 19,
			2012								2012
	ASSETS
	Investments held in trust, at fair value:
	Fixed-maturity securities		$	303,169	$	—		$	—		$	303,169
	Cash equivalents held in trust			26,249		—			—			26,249
	Total investments held in trust			329,418		—			—			329,418
	Cash and cash equivalents			7,014		75,000	(c)		—			82,014
	Fixed-maturity securities, at fair value			6,049		—			—			6,049
	Accrued investment income			2,313		—			—			2,313
	Other assets			3,389		210,000	(d)		-210,000	(i)		3,389
	Total assets		$	348,183	$	285,000		$	-210,000		$	423,183
	LIABILITIES AND SHAREHOLDERS’ EQUITY
	Liabilities:
	Notes payable—principal		$	—	$	130,000	(e)	$	—		$	130,000
	Losses and loss adjustment reserves			141,010		—			—			141,010
	Losses payable			7,585		—			—			7,585
	Unearned premiums			409		—			—			409
	Accrued ceding commissions			466		—			—			466
	Loss contract fair market value reserve			—		—			63,064	(j)		63,064
	Other liabilities			27,156		-23,109	(f)		2	(f)		4,049
	Total liabilities			176,626		106,891			63,066			346,583
	Shareholders’ equity:
	Common stock, $.00001 par value; 500,000,000 authorized, 200,000,000 shares issued and outstanding			—		2	(g)		—			2
	Common stock, $1 par value, 1,000 shares issued and outstanding			1		—			-1	(k)		—
	Additional paid-in capital (Predecessor)			69,879		—			-69,879	(l)		—
	Additional paid-in capital (Successor)			—		154,998	(g)		-78,400	(m)		76,598
	Retained earnings			101,677		23,109	(h)		-124,786	(n)		—
	Total shareholders’ equity			171,557		178,109			-273,066			76,600
	Total liabilities and shareholders’ equity		$	348,183	$	285,000		$	-210,000		$	423,183
	The following notes relate to the table above and should be read in conjunction with the information in such table.
	(a)	These adjustments are necessary to give effect to the Plan, including the receipt of cash proceeds associated with the contribution of cash from certain creditors, issuance of debt securities, issuance of 200 million shares of common stock and other transactions as contemplated under the Plan.
	(b)	These adjustments are necessary to reflect assets and liabilities at fair value and elimination of Predecessor equity. The primary operating business of the Successor is the WMMRC subsidiary which has a net asset value higher than its Fair Market Value (“FMV”).
	(c)	This adjustment reflects $75 million of cash contributed to the Company on the Effective Date by certain creditors.
	(d)	This adjustment reflects the Court’s valuation of WMMRC of $140 million and additional value attributable to the NOLs. These items have been adjusted to FMV as part of the application of Fresh Start Accounting. The Court’s valuation is presented solely for information purposes, however, because management does not believe that the Court’s valuation necessarily reflects the actual or FMV of the Company’s assets and liabilities under GAAP. This adjustment is eliminated as described in (i) below.
	(e)	This adjustment reflects the issuance of $130 million of Runoff Notes as described in Note 8: Notes Payable below.
	(f)	This adjustment reflects eliminating an intercompany payable occurring from carve-out allocated costs related to historic charges allocated as if services had been performed and charged to the Predecessor in accordance with Staff Accounting Bulletin (“SAB”) Topic 1B and 1B1. The methodology for these charges is based on applying the current contractual relationships described in Note 7: Service Agreements and Related Party Transactions as if they had been in place since the formation of WMMRC. The impact on historic earnings is described in (h) below. Additionally, this eliminates the offsetting intercompany amount created when Predecessor common stock is eliminated.
	(g)	This adjustment reflects the calculated value of the 200 million shares of common stock issued before adjusting for FMV as a result of Fresh Start Accounting. This amount results from the use of the Court-assigned (non-GAAP) values attributed to assets and liabilities which are then utilized in calculating the resulting balance attributable to equity. The common stock is recorded at par value calculated as 200 million shares at a par value of $0.00001 per share. The remainder of the value is then attributed to additional paid-in capital.
	(h)	This adjustment increases the retained earnings of the Predecessor due to the elimination of the carve-out costs which decreased historic earnings of the Predecessor. The resulting intercompany payable is described in (f) above. These costs and the related retained earnings are eliminated as the costs were allocated in accordance with SAB Topics 1B and 1B1 and would have eliminated in consolidation.
	(i)	This adjustment reflects the elimination of the Court assigned values described in (d) above. There has been no goodwill recorded as a result of this transaction. WMMRC is reported as the Predecessor and therefore is carried at FMV in individual line items. Management believes that the Court’s valuation was inconsistent with GAAP and such information related to such valuation is being presented here for informational purposes only. Therefore, elimination is required to present the opening balance sheet in accordance with GAAP.
	(j)	This adjustment is required to reflect a loss contract fair market value reserve of $63.1 million relating to contractual obligations of WMMRC. This is in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The net assets or equity value of WMMRC totaled $171.6 million prior to reorganization and fair value adjustments. The elimination of the costs and intercompany payable allocated to the predecessor in accordance with SAB Topic 1B and 1B1 and described in (f) above increase the equity value to $194.7 million. The value of WMMRC was reduced by $63.1 million based upon the FMV analysis described above.
	Predecessor retained earnings		$	101,677
	Adjustment for carve-out allocations			23,109
	Predecessor adjusted retained earnings			124,786
	Predecessor additional paid-in capital			69,879
	Predecessor common stock eliminated in consolidation			-1
	Predecessor equity value			194,664
	Fair market value of WMMRC			131,600
	Loss contract fair market reserve allowance		$	63,064
	(k)	This adjustment reflects the elimination of common stock of the Predecessor.
	(l)	This adjustment reflects the elimination of additional paid-in capital of the Predecessor.
	(m)	This adjustment reflects the reduction of equity value resulting from Fresh Start Accounting. It is comprised of a reduction (relative to Court assigned FMV) in WMMRC’s FMV totaling $8.4 million and the elimination of the Court assigned value of $70 million related to NOLs. Although the Company has substantial NOLs they are subject to a 100 percent valuation allowance as described in Note 6: Income Taxes, and there can be no assurance the Company will be able to realize any benefit from the NOLs.
	Fair market value of WMMRC (Court assigned)		$	140,000
	Fair market value of WMMRC			131,600
Fair market value reduction			8,400
Elimination of Court assigned value related to NOLs			70,000
Total change in fair market value affecting Equity Value		$	78,400
Court assigned Equity Value recorded as additional paid-in capital		$	154,998
Total change in fair market value affecting Equity Value			78,400
Additional paid-in capital at March 19, 2012		$	76,598
(n)	This adjustment reflects the elimination of adjusted retained earnings of the Predecessor.
Predecessor retained earnings		$	101,677
Adjustment for carve-out allocations			23,109
Predecessor adjusted retained earnings		$	124,786

Insurance_Activity

Insurance Activity	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Insurance Activity	'
	Note 4: Insurance Activity
	The Company, through WMMRC, reinsures mortgage guaranty risks of mortgage loans originated by affiliates of the Company during the period from 1997 through 2008. WMMRC is (or was) a party to reinsurance agreements with UGRIC, GMIC, MGIC, PMI, Radian, RMIC and Triad. The agreements with UGRIC and Triad were placed into runoff effective May 31, 2008. The agreements with all other primary mortgage insurers were placed into runoff effective September 26, 2008. The reinsurance agreements with Triad and PMI were commuted on August 31, 2009 and October 2, 2012, respectively.
	All agreements are on an excess of loss basis, except for certain reinsurance treaties with GMIC and Radian during 2007 and 2008, which are reinsured on a 50 percent quota share basis. Pursuant to the excess of loss reinsurance treaties, WMMRC reinsures a second loss layer which ranges from 5 percent to 10 percent of the risk in force in excess of the primary mortgage insurer’s first loss percentages which range from 4 percent to 5 percent.
	As security for the ceding insurers, WMMRC has entered into separate trust agreements with each of the primary mortgage insurance companies whereby a portion of the funds from premiums assumed are held in trust accounts for the benefit of each separate insurer. Pursuant to the terms of the reinsurance agreements, WMMRC is required to keep such assets in trust for a minimum of five (5) years and is subject to claims for up to ten (10) years from termination of obligations arising from the last year in which insurance business was written prior to runoff. Release of funds from the trust by WMMRC requires approval from the primary mortgage guaranty companies.
	Premiums assumed and earned are as follows for the periods ended December 31, 2013, 2012 and 2011, respectively:
		Successor		Successor		Predecessor		Predecessor
		Year ended		Period from		Period from		Year ended
		December 31,		20-Mar-12		1-Jan-12		December 31,
		2013		through December 31,		through March 19,		2011
				2012		2012
	Premiums assumed	$	12,115	$	14,210	$	6,130	$	34,562
	Change in unearned premiums		-1,169		184		47		222
	Premiums earned	$	10,946	$	14,394	$	6,177	$	34,784
	The components of the liability for losses and loss adjustment reserves are as follows as of December 31, 2013 and 2012, respectively:
		Successor		Successor
		December 31,		December 31,
		2013		2012
	Case-basis reserves	$	41,159	$	66,173
	IBNR reserves		713		1,298
	Premium deficit reserves		2,442		15,053
	Total	$	44,314	$	82,524
	Losses and loss adjustment reserve activity are as follows for the years ended December 31, 2013, 2012 and 2011, respectively:
		Successor		Successor		Predecessor
		December 31,		December 31,		December 31,
		2013		2012		2011
	Balance at beginning of period	$	82,524	$	142,119	$	190,036
	Incurred—prior periods		-6,159		30,111		47,321
	Paid or terminated—prior periods		-32,051		-89,706		-95,238
	Total	$	44,314	$	82,524	$	142,119
	The loss contract fair market reserve balance is analyzed and adjusted quarterly. The balances in the reserve was $46.3 million at December 31, 2013 and $52.2 million at December 31, 2012. The loss contract fair market reserve was established on March 19, 2012 at $63.1 million (as more fully described in Note 3: Fresh Start Accounting). The fair market value of this reserve was decreased by $5.9 million and $10.9 million during the periods ended December 31, 2013 and 2012, respectively, resulting in corresponding decreases in expense of the respective amount for each period.

Investment_Securities

Investment Securities	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Investment Securities	'
	Note 5: Investment Securities
	The amortized cost, gross unrealized gains, gross unrealized losses and estimated fair values of fixed-maturity securities held in trust at December 31, 2013, are as follows:
		Amortized		Gross		Gross				Estimated
		Cost		Unrealized		Unrealized				Fair Value
				Gains		Losses
	Trading Securities:
	Obligations of U.S. government sponsored enterprises	$	15,868	$	127	$	-163			$	15,832
	Corporate debt securities		80,624		1,450		-182				81,892
	Commercial paper		98,929		4		-1				98,932
	Foreign corporate debt securities		22,166		149		-170				22,145
	Total fixed-maturity securities		217,587		1,730		-516				218,801
	Less total unrestricted fixed-maturity securities—trading		7,326		232		-13				7,545
	Less total unrestricted fixed-maturity securities—held to maturity		65,352		—		—				65,352
	Total fixed-maturity securities held in trust	$	144,909	$	1,498	$	-503			$	145,904
	The amortized cost, gross unrealized gains, gross unrealized losses and estimated fair values of fixed-maturity securities held in trust at December 31, 2012, are as follows:
		Amortized		Gross		Gross				Estimated
		Cost		Unrealized		Unrealized				Fair Value
				Gains		Losses
	Trading Securities:
	Obligations of U.S. government sponsored enterprises	$	97,103	$	1,416	$	-156			$	98,363
	Corporate debt securities		91,997		3,010		-34				94,973
	Commercial paper		54,949		—		—				54,949
	Foreign corporate debt securities		18,305		379		-18				18,666
	Commercial mortgage-backed securities		10,541		64		-87				10,518
	Total fixed-maturity securities		272,895		4,869		-295				277,469
	Less total unrestricted fixed-maturity securities—trading		14,246		168		-18				14,396
	Less total unrestricted fixed-maturity securities—held to maturity		61,413		—		—				61,413
	Total fixed-maturity securities held in trust	$	197,236	$	4,701	$	-277			$	201,660
	Amortized cost and estimated fair value of fixed-maturity securities at December 31, 2013 by contractual maturity are as follows:
		Amortized		Estimated
		Cost		Fair Value
	Maturity in:
	2014	$	120,536	$	120,604
	2015-2018		92,692		93,944
	2019-2023		4,359		4,253
	Thereafter		—		—
	Total fixed-maturity securities	$	217,587	$	218,801
	Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay obligations with or without call or prepayment penalties.
	Net investment income (loss) for the periods ending December 31, 2013, 2012 and 2011, respectively, is summarized as follows:
		Successor		Successor				Predecessor				Predecessor
		Year Ended		Period from				Period from				Year ended
		December 31,		March 20, 2012				January 1, 2012				December 31,
		2013		through				through				2011
				December 31,				March 19,
				2012				2012
	Investment income (loss):
	Amortization of premium or discount on fixed-maturity securities	$	-2,309	$	-1,837			$	-523			$	-2,750
	Investment income on fixed-maturity securities		6,588		7,232				2,467				12,920
	Interest income on cash and equivalents		10		161				3				49
	Realized net gain (loss) from sale of investments		-1,575		2,747				176				1,206
	Unrealized (losses) gains on trading securities held at period end		-3,492		-1,410				1,049				-2,828
	Net investment income (loss)	$	-778	$	6,893			$	3,172			$	8,597
	The following tables show how the Company’s investments are categorized in accordance with fair value measurement, as of December 31, 2013 and 2012, respectively:
		December 31, 2013
		Level 1		Level 2		Level 3				Total
	Class of Security:
	Obligations of U.S. government sponsored enterprises	$	6,299	$	9,533	$	—			$	15,832
	Corporate debt securities		11,891		70,001		—				81,892
	Commercial paper		98,932		—		—				98,932
	Foreign corporate debt securities		7,652		14,493		—				22,145
	Total fixed maturity securities		124,774		94,027		—				218,801
	Money market funds		44,863		—		—				44,863
	Total	$	169,637	$	94,027	$	—			$	263,664
	December 31, 2012
	Level 1		Level 2		Level 3				Total
Class of Security:
Obligations of U.S. government sponsored enterprises	$	11,362	$	87,001	$	—			$	98,363
Corporate debt securities		22,833		72,141		—				94,974
Commercial paper		54,948		—		—				54,948
Foreign corporate debt securities		1,001		17,665		—				18,666
Commercial mortgage-backed securities		—		10,518		—				10,518
Total fixed maturity securities		90,144		187,325		—				277,469
Money market funds		33,628		—		—				33,628
Total	$	123,772	$	187,325	$	—			$	311,097
A review of the fair value hierarchy classifications of the Company’s investments is conducted quarterly. Changes in the observability of valuation inputs may result in a reclassification for certain financial assets or liabilities. Reclassifications are reported as transfers in or transfers out of the applicable Level at end of the calendar quarter in which the reclassifications occur. During the years ended December 31, 2013 and 2012, $7.1 million and $17.7 million, respectively, of investments were transferred from Level 2 to Level 1 as a result of improving market conditions for short-term and investment grade corporate securities.
	2013				2012
	Transfers from		Transfers from		Transfers from				Transfers from
	Level 1 to		Level 2 to		Level 1 to				Level 2 to
	Level 2		Level 1		Level 2				Level 1
Class of Securities:
Corporate securities	$	—	$	4,598	$	—			$	16,745
Foreign corporate debt securities		—		2,537		—				1,001
Total Transfers	$	—	$	7,135	$	—			$	17,746

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Note 6: Income Taxes
	For the years ended December 31, 2013, the Company recorded net income of approximately $0.3 million, and the Company recorded net losses for the years ended December 31, 2012 and 2011, of $15.8 million and $10.9 million, respectively. The Company has not recorded an income tax expense or benefit for the years ended December 31, 2013, 2012 or 2011.
		2013		2012		2011
	Current federal income tax expense	$	—	$	—	$	—
	Provision for doubtful federal income tax receivable		—		—		—
	Deferred federal income tax (benefit) expense		—		—		—
	Federal income tax benefit	$	—	$	—	$	—
	The items accounting for the difference between income taxes computed at the US federal statutory rate and our effective rate were as follows:
		Successor		Successor				Predecessor		Predecessor
		Year Ended		Period from				Period from		Year ended
		December  31,		March 20, 2012				1-Jan-12		December 31,
		2013		through December 31,				through March 19,		2011
				2012				2012
	Income tax at the federal statutory rate of 35%		35%		-35%				-35%		-35%
	Effect of:
	Fresh start accounting adjustments		—		—				—		(3)
	Worthless stock deduction		13		(23,718)				—		—
	Cancelation of debt		—		2,401				—		—
	As filed adjustments		(14,505)		—				—		—
	Reduction in NOL due to 382 Limitation		—		4,518				—		—
	Change in valuation allowance		14,457		16,834				35		38
	Effective Rate		—  %		—  %				—  %		—  %
	The Company files a consolidated federal income tax return. Pursuant to a tax sharing agreement, WMMRC’s federal income tax liability is calculated on a separate return basis determined by applying 35 percent to taxable income, in accordance with the provisions of the Code that apply to property and casualty insurance companies. WMIHC, as WMMRC’s parent, pays federal income taxes on behalf of WMMRC and settles the federal income tax obligation on a current basis in accordance with the tax sharing agreement. WMMRC made no tax payments to WMIHC during the year ending December 31, 2013, 2012 or 2011 associated with the Company’s tax liability from the preceding year.
	Deferred federal income taxes arise from temporary differences between the valuation of assets and liabilities as determined for financial reporting purposes and income tax purposes. Temporary differences principally relate to discounting of loss reserves, accruals, net operating losses and unrealized gains and losses on investments. As of December 31, 2013, 2012 and 2011, the Company recorded a valuation allowance equal to 100 percent of the net deferred federal income tax asset due to uncertainty regarding the Company’s ability to realize these benefits in the future.
	The components of the net deferred tax asset as of December 31, 2013 and 2012, respectively, are as follows:
		2013		2012
	Deferred federal income tax asset:
	Losses and loss adjustments expenses	$	143	$	2,832
	Net operating loss carryforward		2,087,490		2,088,461
	Accruals and reserves		16,387		18,276
	As filed adjustments		130		—
	Capital loss carryforward		52,756		—
	Total deferred federal income tax asset		2,156,906		2,109,569
	Deferred federal income tax liabilities:
	Net unrealized gains on investments		425		1,946
	Total deferred federal income tax liabilities		425		1,946
	Less: Valuation allowance		2,156,481		2,107,623
	Net deferred federal income tax asset	$	—	$	—
	On March 19, 2012, WMIHC emerged from bankruptcy. Prior to emergence, WMI abandoned the stock of WMB, thereby generating a worthless stock deduction of approximately $8.37 billion which gives rise to an NOL for the year ended December 31, 2012. Under Section 382 of the Code, and based on the Company’s analysis, we believe that the Company experienced an “ownership change” (generally defined as a greater than 50 percent change (by value) in our equity ownership over a three-year period) on March 19, 2012, and our ability to use our pre-change of control NOLs and other pre-change tax attributes against our post-change income was limited. The Section 382 limitation is applied annually so as to limit the use of our pre-change NOLs to an amount that generally equals the value of our stock immediately before the ownership change multiplied by a designated federal long-term tax-exempt rate. Due to applicable limitations under Section 382 and a reduction of tax attributes due to cancellation of indebtedness, a portion of these NOLs were limited and will expire unused. We believe that the total available and utilizable NOL carry forward at December 31, 2013 is approximately $5.96 billion. At December 31, 2013 there was no limitation on the use of these NOLs. These NOLs will begin to expire in 2029. The Company’s ability to utilize the NOLs or realize any benefits related to the NOLs is subject to a number of risks.
	The Company accounts for uncertain tax positions in accordance with the income taxes accounting guidance. The Company has analyzed filing positions in the federal and state jurisdiction where it is required to file tax returns, as well as the open tax years in these jurisdictions. Tax years 2008 to present are subject to examination by the Internal Revenue Service. The Company believes that its federal income tax filing positions and deductions will be sustained on audit and does not anticipate any adjustments that will result in a material change to its financial position. Therefore, no reserves for uncertain federal income tax positions have been recorded. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of the provision for federal income taxes. The Company did not incur any federal income tax related interest income, interest expense or penalties for the periods ended December 31, 2013, 2012 and 2011.

Service_Agreements_and_Related

Service Agreements and Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Service Agreements and Related Party Transactions	'
	Note 7: Service Agreements and Related Party Transactions
	WMMRC has engaged a Hawaiian-based service provider, Marsh Management Services, Inc., to provide accounting and related management services for its operations. In exchange for performing these services, WMMRC pays such service provider a management fee.
	WMIHC entered into an Investment Management Agreement and an Administrative Services Agreement with WMMRC on March 19, 2012. Each of these agreements was approved by WMMRC’s primary regulator. Total amounts incurred under these agreements totaled $1.7 million for the year ended December 31, 2013, $1.5 million for the period from March 20, 2012 to December 31, 2012 and $0.0 for all other periods. The expense and related income eliminate on consolidation. These agreements are described below.
	Under the terms of such Investment Management Agreement, WMIHC receives from WMMRC a fee equal to the product of (x) the ending dollar amount of assets under management during the calendar month in question and (y) .002 divided by 12. WMIHC is responsible for investing the funds of WMMRC based on applicable investment criteria and subject to rules and regulations to which WMMRC is subject.
	Under the terms of such Administrative Services Agreement, WMIHC receives from WMMRC a fee of $110 thousand per month. WMIHC is responsible for providing administrative services to support, among other things, supervision, governance, financial administration and reporting, risk management, and claims management as may be necessary, together with such other general or specific administrative services that may be reasonably required or requested by WMMRC in the ordinary course of its business.
	On March 23, 2012, WMIHC and the Trust entered into a Transition Services Agreement (the “TSA”). Pursuant to the TSA, each party makes available certain services and employees. The TSA provides the Company with office space for its current employees and basic infrastructure and support services to allow the Company to operate. The TSA provides the WMI Liquidating Trust (the “Trust”) with access to certain of the Company’s employees. The TSA was amended on September 18, 2012 and the term of the agreement was extended through March 31, 2013, with automatic renewals thereafter for successive additional three-month terms, subject to non-renewal at the end of any additional term upon written notice by either party at least 30 days prior to the expiration of the additional term. The agreement has automatically renewed per its terms and is currently in place through June 30, 2014, subject to additional renewals. Either party may terminate one or more of the services offered upon 10 days’ written notice to the other party.
	See Note 3: Fresh Start Accounting for a discussion of fees attributed to WMMRC in accordance with SAB Topics 1B and 1B1 which address common cost and expense allocations for pre-Effective Date periods.
	In connection with implementing the Plan, certain holders of specified “Allowed Claims” had the right to elect to receive such holder’s “Pro Rata Share of the Common Stock Allotment.” Essentially, the Plan defines the “Pro Rata Share of the Common Stock Allotment” as a pro rata share of ten million (10,000,000) shares of WMIHC’s common stock (i.e. five percent (5%)) issued and outstanding on the Effective Date. Holders exercising the foregoing election did so in lieu of receiving (i) 50% of such holder’s interest in and to certain litigation proceeds that could be realized by the Trust on account of certain claims and causes of action asserted by the Trust as contemplated by the Plan (“Litigation Proceeds”), and (ii) some or all of the Runoff Notes to which such holder may be entitled (if such holder elected to receive Runoff Notes in accordance with the terms of the Plan).
	If a holder exercised the election described above and, as a result of such election, received shares of WMIHC’s common stock, then such holder’s share of Runoff Notes to which the election was effective (i.e., One Dollar ($1.00) of original principal amount of Runoff Notes for each share of WMIHC’s common stock) were not issued. In addition, as a result of making the aforementioned election, such holders conveyed to WMIHC, and WMIHC retains an economic interest in, the Litigation Proceeds equal to fifty percent (50%) of the Litigation Proceeds to which the electing holder otherwise would have been entitled and such holder’s rights in respect of distributions from the Trust will be adjusted to the extent Litigation Proceeds are received by WMIHC). Distributions, if any, to WMIHC on account of the foregoing will be effected in accordance with the Plan and Confirmation Order.
	As of December 31, 2013, WMIHC had not received any Litigation Proceeds in connection with the foregoing. Given the speculative nature of litigation, there can be no assurance that WMIHC will receive any value or distributions on account of Litigation Proceeds.

Notes_Payable

Notes Payable	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Notes Payable	'
	Note 8: Notes Payable
	On the Effective Date, WMIHC issued $110.0 million aggregate principal amount of its First Lien Notes under the First Lien Indenture, between WMIHC and Wilmington Trust, National Association, as Trustee. Additionally, WMIHC issued $20.0 million aggregate principal amount of its Second Lien Notes under the Second Lien Indenture, between WMIHC and Law Debenture Trust Company of New York, as Trustee. The Runoff Notes are scheduled to mature on March 19, 2030 and pay interest quarterly.
	The Runoff Notes are secured by, and have a specified priority in right of payment in, a securities or deposit account into which WMIHC will deposit distributions it receives of Runoff Proceeds (as defined in the Indentures) (the “Collateral Account”).
	WMIHC will, and has agreed to cause WMMRC to, deposit all distributions, dividends or other receipts in respect of Runoff Proceeds Distributions (as defined in the Indentures) on the date paid to WMIHC in the Collateral Account established in accordance with the terms of the Indentures. On any interest payment date, payments are made from the Collateral Account and from any other Runoff Proceeds Distributions in the priority set forth in the Indentures. The obligations created by the Runoff Notes are nonrecourse to WMIHC (except for certain actions for specific performance) and, except in certain limited circumstances as more fully described in Section 7.16 of the Indentures with respect to Runoff Proceeds Distributions in the Collateral Account or for failure to comply with certain specified covenants relating to (i) the deposit of Runoff Proceeds in the Collateral Account, (ii) payment of Runoff Proceeds in the Collateral Account in accordance with the order of priority established in the Indentures, (iii) failure to seek to obtain the appropriate regulatory approval to permit the dividend of Runoff Proceeds to WMIHC and (iv) the failure to cause WMMRC to deposit Runoff Proceeds into a segregated account.
	In connection with certain interest payments due and payable in respect of the First Lien Notes, WMIHC elected, consistent with the terms of the Indentures, to issue PIK Notes (as defined in the Indentures) in lieu of making such interest payment in cash when no cash was available. In connection with interest payments due and payable in respect of the Second Lien Notes since inception, WMIHC elected, consistent with the terms of the Indentures, to issue PIK Notes (as defined in the Indentures) in lieu of making such interest payment in cash. The aggregate face amount of PIK Notes issued as of December 31, 2013, 2012 and 2011 totals approximately $13.9 million, $8.3 million and $0.0, respectively. Outstanding amounts under these notes totaled approximately $105.5 million, $136.3 million and $0.0 as of December 31, 2013, 2012 and 2011, respectively. Approximately $36.3 million, $2.1 million and $0.0 of First Lien Notes principal was paid during the years ended December 31, 2013, 2012 and 2011, respectively. Interest on First Lien Notes paid in cash totaled approximately $9.7 million, $3.7 million and $0.0 during the years ended December 31, 2013, 2012 and 2011, respectively. On September 4, 2012, WMIHC received the Issuer Incremental Amount and Issuer Priority Amount (as such terms are defined in the Indentures) in accordance with the terms of the First Lien Indenture.
	As of December 31, 2013, 2012 and 2011, the Collateral Account contained $0.1 million, $25.0 million and $0.0, respectively, of cash received from WMMRC which (for the periods with a balance) were or will be ultimately used for future administrative expenses, interest and principal payments.

Financing_Arrangements

Financing Arrangements	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Financing Arrangements	'
	Note 9: Financing Arrangements
	As of March 19, 2012, a Financing Agreement (the “Financing Agreement”) was entered into by and among WMIHC, each current subsidiary of WMIHC and any additional subsidiary or person who later agrees to or becomes a guarantor, the lenders from time to time party thereto (each a “Lender” and collectively, the “Lenders”), on a several and not joint basis, and U.S. Bank National Association, a national banking association, as administrative agent for the Lenders. The credit facility established by the Financing Agreement may be used for only certain specific purposes.
	The facility consists of (a) a tranche A term loan and a tranche A-1 term loan in the aggregate principal amount of $25.0 million and (b) a tranche B term loan in the aggregate principal amount of $100.0 million. The proceeds of (a) the tranche A term loan and tranche A-1 term loan can be used to fund working capital and for general corporate purposes of the Company, and (b) the tranche B term loan can be used to fund certain permitted acquisitions and permitted originations (as these terms are defined in the Financing Agreement) which are limited to acquisitions and originations of business in the financial services or insurance sectors. The Lenders are severally, and not jointly, obligated to extend such credit to WMIHC. The facility is secured by substantially all of WMIHC’s assets and the Lenders must have an additional first priority lien on any new business and assets acquired. As of December 30, 2013 and 2012, no loans were outstanding under the Financing Agreement.
	On January 31, 2014, WMIHC announced that it had entered into (i) a note purchase agreement, dated as of January 30, 2014 (the “Note Purchase Agreement”), with the guarantors party thereto and KKR Management Holdings L.P. (“KKR Management”), (ii) an investment agreement, dated as of January 30, 2014 (the “Investment Agreement”), with KKR Fund Holdings L.P. (“KKR Fund” and, together with KKR Management, “KKR”) and, for limited purposes, KKR Management and (iii) an investor rights agreement, dated as of January 30, 2014 (the “Investor Rights Agreement”), with KKR Fund (together, the “KKR Transaction”).
	Pursuant to the terms and conditions of the Note Purchase Agreement, KKR Management has committed to purchase up to $150 million aggregate principal amount (at issuance) of subordinated 7.50% PIK notes (the “Subordinated Notes”) from the Company.
	For further information on the Note Purchase Agreement and the KKR Transaction, see Note 15: Subsequent Events.

Capital_Stock

Capital Stock	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Capital Stock	'
	Note 10: Capital Stock
	On the Effective Date, all shares of common and preferred equity securities previously issued by WMI were cancelled and extinguished. As of the Effective Date, and pursuant to WMIHC’s Amended and Restated Articles of Incorporation, WMIHC is authorized to issue up to 500,000,000 shares of common stock and up to 5,000,000 shares of blank check preferred stock, each with a par value of $0.00001 per share. 200,000,000 shares of common stock were issued by WMIHC pursuant to the Court approved Plan and in reliance on Section 1145 of the Bankruptcy Code on the Effective Date.
	On January 31, 2014, WMIHC announced that it had entered into (i) the Note Purchase Agreement, (ii) the Investment Agreement and (iii) the Investor Rights Agreement.
	Pursuant to the terms and conditions of the Investment Agreement, the Company has sold to KKR Fund 1,000,000 shares of the Series A Convertible Preferred Stock (the “Convertible Preferred Stock”) having the terms, rights, obligations and preferences contained in the Articles of Amendment of the Company dated January 30, 2014 (the “Articles of Amendment”) for a purchase price equal to $11.1 million and has issued to KKR Fund warrants to purchase, in the aggregate, 61.4 million shares of the Company’s common stock, 30.7 million of which have an exercise price of $1.32 per share and 30.7 million of which have an exercise price of $1.43 per share (together, the “Warrants”).
	For further information on the Investment Agreement and the KKR Transaction, see Note 15: Subsequent Events.
	WMIHC issued restricted share grants to members of the board of directors totaling $700 thousand, $550 thousand and $0.0 of aggregate intrinsic value during the years ended December 31, 2013, 2012 and 2011, respectively. The restricted shares vest over a three year period and the resulting unamortized value related to the unvested restricted share grant totals $706 thousand, $407 thousand and $0.0 for the years ended December 31, 2013, 2012 and 2011, respectively. The unamortized value of $706 thousand at December 31, 2013, if all are ultimately vested will be amortized according to the following schedule.
	Amortization Schedule (in thousands)
	1st quarter 2014		100
	2nd quarter 2014		100
	3rd quarter 2014		100
	4th quarter 2014		100
	1st quarter 2015		96
	2nd quarter 2015		54
	3rd quarter 2015		54
	4th quarter 2015		54
	1st quarter 2016		48
	Total Unamortized value	$	706
	Net stock-based compensation totaled $401 thousand, $143 thousand and $0.0 for the years ended December 31, 2013, 2012 and 2011, respectively. The share grants were issued at the fair market value determined to be the trading price at the close of business on October 18, 2012, and August 13, 2013, respectively, the date the grants were approved by the board of directors.
	A summary of WMIHC’s restricted share award activity for the years ended December 31, 2013 and 2012 is presented below. The 2012 Plan did not exist in 2011. Consequently, no awards of restricted shares were made in 2011.
		Number			Weighted-		Aggregate
		of Restricted			Average Grant		Intrinsic
		Stock Awards			Date Fair		Value
		Outstanding			Value		(in thousands)
	Outstanding—January 1, 2012		—		$	—	$	—
	Restricted stock awards granted during 2012		1,156,078			0.4761		550
	Restricted stock awards released or forfeited during 2012		—			—		—
	Outstanding—December 31, 2012		1,156,078			0.4761		550
	Restricted stock awards granted during 2013		686,273			1.02		700
	Restricted stock awards released or forfeited during 2013		—			—		—
	Outstanding—December 31, 2013		1,842,351		$	0.6787	$	1,250
	WMIHC has issued the total number of shares subject to the restricted stock grants, however, until vested they are subject to repurchase. The restricted shares vest 1/3 per year over a three year period annually on March 19th. On December 31, 2013, 1,456,987 shares remained subject to repurchase. On March 19, 2013, 385,364 shares vested. On March 19, 2014, 614,117 of the shares will become vested assuming none are forfeited. WMIHC has the right, but not the obligation, to repurchase any unvested (but issued) shares of common stock at $0.0001 per share upon the termination of service in the case of a director.
	A summary of WMIHC’s restricted shares issued and subject to repurchase as of the years ended December 31, 2013 and 2012 is presented below. There were no WMIHC restricted shares issued and subject to repurchase during 2011.
		Shares
	Unvested shares—January 1, 2012		—
	Shares issued subject to vesting during 2012		1,156,078
	Unvested shares repurchased during 2012		—
	Shares vested during 2012		—
	Unvested shares—December 31, 2012		1,156,078
	Shares issued subject to vesting during 2013		686,273
	Unvested shares repurchased during 2013		—
	Shares vested during 2013		(385,364	)
	Unvested shares—December 31, 2013		1,456,987
	As of December 31, 2013 and 2012, 201,842,351 and 201,156,078 shares, respectively, of WMIHC’s common stock were issued and outstanding. As of December 31, 2013 and 2012, no shares of WMIHC’s preferred stock were issued or outstanding. See Note 13: Net Income (Loss) Per Common Share for further information on shares used for EPS calculations.
	In connection with the 2012 Plan, 1,000,000 additional shares of the Company’s common stock were reserved effective February 10, 2014. In connection with the 2012 Plan, 250,000 restricted shares of the Company’s common stock were issued to members of our Corporate Strategy and Development Committee and our Chairman, Michael Willingham, effective February 10, 2014. For further information on the 2012 Plan, see Note 15: Subsequent Events.

Pending_Litigation

Pending Litigation	12 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Pending Litigation	'
	Note 11: Pending Litigation
	As of December 31, 2013, the Company was not a party to, or aware of, any pending legal proceedings or investigations requiring disclosure at this time.

Restriction_on_Distribution_of

Restriction on Distribution of Net Assets from Subsidiary	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Restriction on Distribution of Net Assets from Subsidiary	'
	Note 12: Restriction on Distribution of Net Assets from Subsidiary
	WMMRC has net assets totaling $145.8 million and $167.0 million as of December 31, 2013 and 2012, respectively. These net assets are not immediately available for distribution to WMIHC due to restrictions imposed by trust agreements, and the requirement that the Insurance Commissioner of the State of Hawaii must approve dividends from WMMRC. Distributions from WMMRC to WMIHC are further restricted by the terms of the Runoff Notes described in Note 8: Notes Payable.

Net_Income_Loss_Per_Common_Sha

Net Income (Loss) Per Common Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Net Income (Loss) Per Common Share	'
	Note 13: Net Income (Loss) Per Common Share
	Basic and diluted net income (loss) per share attributable to common shareholders is computed by dividing net income (loss), excluding net income (loss) allocated to participating securities, by the weighted average number of shares outstanding less the weighted average of unvested restricted shares outstanding.
	There were no dilutive effects from any equity instruments for any of the periods presented, therefore diluted net income (loss) per share was the same as basic net income (loss) for all periods presented. There were no participating shares for periods prior to the issuance of restricted shares on October 18, 2012 as described in Note 10: Capital Stock.
	The following table sets forth the computation of basic and diluted net income (loss) per share:
	(in thousands, except per share data):
		Successor		Successor		Predecessor		Predecessor
		Year Ended		Period from		Period from		Year Ended
		December 31, 2013		March 20, 2012 to		January 1, 2012 to		December 31, 2011
				December 31, 2012		19-Mar-12
	Numerator for basic and diluted net income (loss) per share:
	Net income (loss)	$	338	$	-12,353	$	-3,433	$	-10,873
	Less: Net income (loss) allocated to participating securities		2		-18		—		—
	Net income (loss) attributable to common shareholders	$	336	$	-12,335	$	-3,433	$	-10,873
	Denominator for basic and diluted net income (loss) per share:
	Weighted-average shares outstanding		201,419, 306		200,298,083		1,000		1,000
	Weighted-average unvested restricted shares outstanding		-1,115,238		-298,083		—		—
	Denominator for basic and diluted net income (loss) per share:		200,304,068		200,000,000		1,000		1,000
	Basic and diluted net income (loss) per share attributable to common shareholders	$	0.00	$	-0.06	$	-3,433.00	$	-10,873.00

Quarterly_Financial_Informatio

Quarterly Financial Information	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Information	'
	Note 14: Quarterly Financial Information (Unaudited)
	Following is a summary of the unaudited interim results of operations for the year ended December 31, 2013, 2012 and 2011, respectively, (in thousands, except per share amounts):
		Total Revenue		Net Income (Loss)		Earnings per
						share – basic
						and diluted
	Successor
	Year Ended December 31, 2013
	First Quarter	$	4,101	$	-3,816	$	-0.02
	Second Quarter		-974		-2,484		-0.01
	Third Quarter		3,723		-878		-0.01
	Fourth Quarter		3,318		7,516		0.04
	Total	$	10,168	$	338	$	0.00
	Period from March 20, 2012 to December 31, 2012
	March 20 to March 31, 2012	$	1,922	$	472	$	0.00
	Second Quarter		7,447		-8,173		-0.04
	Third Quarter		7,336		5,299		0.03
	Fourth Quarter		4,582		-9,951		-0.05
	Total	$	21,287	$	-12,353	$	-0.06
	Predecessor
	January 1 to March 19, 2012	$	9,349	$	-3,433	$	-3,433.00
	Year Ended December 31, 2011
	First Quarter	$	10,823	$	-1,891	$	-1,891.00
	Second Quarter		13,208		-1,368		-1,368.00
	Third Quarter		9,103		-6,264		-6,264.00
	Fourth Quarter		10,247		-1,350		-1,350.00
	Total	$	43,381	$	-10,873	$	-10,873.00

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Note 15: Subsequent Events
	On January 31, 2014, WMIHC announced that it had entered into (i) the Note Purchase Agreement, (ii) the Investment Agreement and (iii) the Investor Rights Agreement.
	Note Purchase Agreement
	Pursuant to the terms and conditions of the Note Purchase Agreement, KKR Management has committed to purchase up to $150 million aggregate principal amount (at issuance) of subordinated 7.50% PIK notes (the “Subordinated Notes”) from WMIHC.
	The Subordinated Notes may be issued by WMIHC, at WMIHC’s option, in one or more tranches over a three year period, subject to certain terms and conditions, including the conditions that (i) all or substantially all of the proceeds from the issuance of the Subordinated Notes are used by WMIHC to fund the acquisition of the assets of, or equity interests of, or a business line, unit or division of, any entity that has been approved by the board of directors of WMIHC (the “Board”), (ii) no defaults or events of default shall have occurred under the Note Purchase Agreement and (iii) no violation of certain provisions of the Investor Rights Agreement shall have occurred. KKR Management may refuse to purchase Subordinated Notes from WMIHC in the event that a third party (other than KKR or any of its affiliates) (i) has completed a successful proxy contest against WMIHC or (ii) has publicly initiated or threatened to initiate a proxy contest and, in connection therewith, such third party is granted the right to designate more than one nominee to the Board. Upon such refusal, KKR Management will automatically forfeit a percentage of warrants described below in the Investment Agreement.
	Additionally, WMIHC’s ability to issue the Subordinated Notes is subject to no default or event of default under the Financing Agreement, and limited by the Financing Agreement to the greater of (i) $25,000,000 and (ii) 25% of consolidated tangible assets, as defined in the Financing Agreement. The lenders under the Financing Agreement have provided their consent to the subordination provisions of the Note Purchase Agreement, in accordance with the terms of the Financing Agreement.
	Each Subordinated Note will mature on the date that is seven years from the date that the initial Subordinated Note is first issued (the “Initial Issue Date”). Interest on the Subordinated Notes is due semi-annually and will be paid entirely by capitalizing accrued and unpaid interest on each interest payment date and adding the same to the principal amount of the Subordinated Notes then outstanding. Following an increase in the principal amount of the outstanding Subordinated Notes as a result of the capitalization of accrued interest, interest will accrue on such increased principal amount from and after the date of such interest capitalization.
	The Subordinated Notes will be unsecured obligations of WMIHC that rank junior to WMIHC’s existing and future senior indebtedness. The payment of all obligations owing in respect of the Subordinated Notes is expressly subordinated in right of payment to the prior payment in full of all existing and future senior indebtedness. The Subordinated Notes will be irrevocably and unconditionally guaranteed, on a joint and several basis, by certain of WMIHC’s existing and future subsidiaries.
	On and after the date that is three years after the Initial Issue Date, the Subordinated Notes may be redeemed by WMIHC, in whole or in part, at the redemption prices (expressed as a percentage of principal amount of the Subordinated Notes to be redeemed) set forth below, plus accrued and unpaid interest thereon, if any, to the applicable redemption date, if redeemed during the 12-month period beginning on the dates specified below:
	Date		Percentage
	3rd anniversary of the Initial Issue Date			103.75	%
	4th anniversary of the Initial Issue Date			101.875	%
	5th anniversary of the Initial Issue Date and thereafter			100	%
	Prior to the date that is three years after the Initial Issue Date, the Subordinated Notes may be redeemed by the Company, in whole or in part, at a redemption price equal to 100% of the principal amount of Subordinated Notes redeemed plus a “make whole” premium calculated in the manner set forth in the Note Purchase Agreement.
	The Note Purchase Agreement contains covenants that, among other things, limit WMIHC and WMIHC’s restricted subsidiaries ability to:
		•		incur additional indebtedness;
		•		(i) pay dividends or make other distributions, (ii) purchase, redeem or retire the capital stock of WMIHC, (iii) pay, purchase or redeem, prior to scheduled maturity, certain subordinated obligations and (iv) make certain restricted investments;
		•		incur or suffer to exist liens;
		•		allow to exist certain restrictions on the ability of WMIHC’s restricted subsidiaries to pay dividends or make other payments to the Company;
		•		designate WMIHC’s subsidiaries as unrestricted subsidiaries;
		•		enter into transactions with affiliates;
		•		dispose of assets; and
		•		consolidate, merge or sell all or substantially all of WMIHC’s assets.
	Additionally, the Note Purchase Agreement contains covenants that require WMIHC to:
		•		file reports with the SEC within certain time periods;
		•		cause certain future restricted subsidiaries to guarantee the Subordinated Notes; and
		•		make an offer to purchase Subordinated Notes from holders in the event of certain types of change of control of WMIHC or in certain circumstances related to the sale of WMIHC’s or a restricted subsidiary’s assets.
	The covenants are subject to a number of important exceptions, limitations and qualifications set forth in the Note Purchase Agreement.
	The Subordinated Notes have not been registered under the Securities Act and may not be sold or transferred in the United States without registration or an applicable exemption from the registration requirements.
	Investment Agreement
	Pursuant to the terms and conditions of the Investment Agreement, WMIHC has sold to KKR Fund 1,000,000 shares of the Series A Convertible Preferred Stock having the terms, rights, obligations and preferences contained in the Articles of Amendment for a purchase price equal to $11.1 million and has issued to KKR Fund warrants to purchase, in the aggregate, 61.4 million shares of WMIHC’s common stock, 30.7 million of which have an exercise price of $1.32 per share and 30.7 million of which have an exercise price of $1.43 per share (together, the “Warrants”).
	The Convertible Preferred Stock has rights substantially similar to those associated with WMIHC’s common stock, with the exception of a liquidation preference, conversion rights and customary anti-dilution protections. The Convertible Preferred Stock has a liquidation preference equal to the greater of (i) $1.00 per $1 million face amount plus declared but unpaid dividends on the underlying common stock of the Company and (ii) the amount that the holder would be entitled to in a relevant transaction had the Convertible Preferred Stock been converted to common stock of WMIHC. The Convertible Preferred Stock is convertible at a conversion price of $1.10 per share into shares of common stock of WMIHC either at the option of the holder or automatically upon transfer by KKR Fund to a non-affiliated party. Further, KKR Fund, as the holder of the Convertible Preferred Stock and the Warrants, has received other rights pursuant to the Investor Rights Agreement as described below.
	The Warrants have a five-year term from the date of issuance and are subject to customary structural adjustment provisions for stock splits, combinations, recapitalizations and other similar transactions.
	Investor Rights Agreement
	KKR Fund’s rights as a holder of the Convertible Preferred Stock and the Warrants, and the rights of any subsequent holder that is an affiliate of KKR Fund (together with KKR Fund, the “Holders”) are governed by the Investor Rights Agreement. Pursuant to the Investor Rights Agreement, for so long as the Holders own 50% of the Convertible Preferred Stock issued as of January 30, 2014 (or the underlying common stock of WMIHC), the Holders will have the right to appoint one of seven directors to the Board. As of March 10, 2014, the Holders have not exercised this right of appointment.
	Additionally, until January 30, 2017, the Holders will have the right to purchase up to 50% of any future equity rights offerings or other equity issuance by WMIHC on the same terms as the equity issued to other investors in such transactions, in an aggregate amount of such offerings and issuances by WMIHC of up to $1 billion (the “Participation Rights”). The foregoing Participation Rights do not include any issuances of securities by WMIHC constituting any part of the consideration payable by it in connection with any acquisitions or investments (including any rollover equity) or in respect of any employee options or other income compensation. The aggregate beneficial ownership by Holders of equity securities of WMIHC after giving effect to any equity issuances (and on a pro forma basis after taking into account any acquisitions) shall at no time exceed 42.5% of the equity securities of WMIHC without the prior written consent of WMIHC. Any such rights to acquire equity securities are subject to limitation to the extent they would cause a loss of all or substantially all of the benefit of the Company’s tax benefits (as such term is defined in the Articles). Except for the foregoing Participation Rights and the issuance of common stock in respect of the Warrants and the Convertible Preferred Stock, KKR Fund and its affiliates shall not purchase or acquire any equity securities of the WMIHC or its subsidiaries without WMIHC’s prior written consent, subject to certain exceptions.
	In connection with the issuance of the Convertible Preferred Stock and the Warrants, KKR Fund and its affiliates have agreed that, until December 31, 2016, they will not:
		i.	request the call of a special meeting of the shareholders of WMIHC; seek to make, or make, a shareholder proposal at any meeting of the shareholders of WMIHC; seek the removal of any director from the Board; or make any “solicitation” of “proxies” (as such terms are used in the proxy rules of the SEC) or solicit any written consents of shareholders with respect to any matter;
		ii.	form or join or participate in a “partnership, limited partnership, syndicate or other group” within the meaning of Section 13(d)(3) of the Exchange Act, with respect to any voting securities of WMIHC;
		iii.	make or issue, or cause to be made or issued, any public disclosure, statement or announcement (including filing reports with the SEC) (x) in support of any solicitation described in clause (i) above, or (y) negatively commenting upon WMIHC;
		iv.	except pursuant to any exercise of any Warrant, the conversion of the Convertible Preferred Stock, or the exercise of the Participation Rights, acquire, agree or seek to acquire, beneficially or otherwise, any voting securities of the Company (other than securities issued pursuant to a plan established by the Board for members of the Board, a stock split, stock dividend distribution, spin-off, combination, reclassification or recapitalization of WMIHC and its common stock or other similar corporate action initiated by WMIHC);
		v.	enter into any discussions, negotiations, agreements or undertakings with any person with respect to the foregoing or advise, assist, encourage or seek to persuade others to take any action with respect to the foregoing, except pursuant to mandates granted by WMIHC to raise capital by WMIHC to KKR Capital Markets LLC and its affiliates; or
		vi.	short any of the WMIHC’s common stock or acquire any derivative or hedging instrument or contract relating to WMIHC’s common stock.
	In the event that any shareholder or group of shareholders other than KKR Fund calls a shareholder meeting or seeks to nominate nominees to the Board, then KKR Fund shall not be restricted from calling a shareholder meeting in order to nominate directors as an alternative to the nominees nominated by such shareholder or group, provided that KKR Fund shall not nominate or propose a number of directors to the Board that is greater than the number of directors nominated or proposed by such shareholder or group.
	The Investor Rights Agreement also provides the Holders with registration rights, including three long form demand registration rights, unlimited short form demand registration rights and customary piggyback registration rights with respect to common stock (and common stock underlying the Convertible Preferred Stock and the Warrants), subject to certain minimum thresholds, customary blackout periods and lockups of 180 days.
	For as long as the Holders beneficially own any shares of common stock of WMIHC or Convertible Preferred Stock or any of the Warrants, WMIHC has agreed to provide customary Rule 144A information rights, to provide the Holders with regular audited and unaudited financial statements and to allow the Holders or their representatives to inspect WMIHC’s books and records.
	As described above in “Note Purchase Agreement,” in certain circumstances KKR Management may refuse to purchase Subordinated Notes. Upon the occurrence of KKR Management’s refusal, pursuant to and in accordance with the terms and conditions of the Note Purchase Agreement, to purchase Subordinated Notes, Holders will automatically forfeit a percentage of the Warrants.
	General
	The foregoing description of (i) the Note Purchase Agreement is qualified in its entirety by reference to the Note Purchase Agreement, which was filed with the SEC as Exhibit 4.1 on Form 8-K on January 31, 2014, and incorporated by reference, (ii) the Investor Rights Agreement is qualified in its entirety by reference to the Investor Rights Agreement, which was filed with the SEC as Exhibit 4.2 on Form 8-K on January 31, 2014, and incorporated by reference, (iii) the Warrants are qualified in their entirety by reference to the Form of Tranche A Warrant and Form of Tranche B Warrant, which were filed with the SEC as Exhibits 4.3 and 4.4, respectively, on Form 8-K on January 31, 2014, and incorporated by reference, (iv) the Convertible Preferred Stock is qualified in its entirety by reference to the Articles of Amendment, which were filed with the SEC as Exhibit 4.5 on Form 8-K on January 31, 2014, and incorporated by reference, and the Form of Series A Convertible Preferred Stock Certificate, which was filed with the SEC as Exhibit 4.6 on Form 8-K on January 31, 2014, and incorporated by reference and (v) the Investment Agreement is qualified in its entirety by reference to the Investment Agreement, which was filed with the SEC as Exhibit 10.1 on Form 8-K on January 31, 2014, and incorporated by reference.
	Effective February 10, 2014, the Board approved and adopted a First Amendment to the 2012 Plan, pursuant to which the number of shares of the Company’s common stock reserved and available for grants under the 2012 Plan was increased from 2 million shares to 3 million shares, and that modified the terms under which the 2012 Plan may be amended to permit such an increase through action of the Board except when shareholder approval is necessary to comply with any applicable law, regulation or rule of any stock exchange on which the Company’s shares are listed, quoted or traded. The foregoing description of the First Amendment is qualified in its entirety by reference to the full text of the First Amendment, which was filed with the SEC as Exhibit 99.1 on Form 8-K on February 13, 2014, and is incorporated herein by reference.
	On February 10, 2014, 250,000 restricted shares of WMIHC’s common stock were issued under the 2012 Plan to members of our Corporate Strategy and Development Committee and our Chairman, Michael Willingham. The foregoing description of the issuance is qualified in its entirety by reference to the full text of the Form D, which was filed with the SEC on February 13, 2014, and is incorporated herein by reference.

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	During the bankruptcy, WMI adopted so-called “Modified Exchange Act Reporting” under the Securities and Exchange Commission (the “SEC”) Staff’s Legal Bulletin No. 2 (“SLB 2”). Following the Effective Date, WMIHC continues to rely upon the guidance set forth in SLB 2 and we filed as of the Effective Date a Form 8-K pertaining to emergence from bankruptcy and subsequently filed a Form 8-K/A, which included WMIHC’s audited balance sheet as of the Effective Date. As provided under the SLB 2 Modified Exchange Act Reporting framework, WMIHC resumed filing periodic reports under the Exchange Act for all periods after the Effective Date of the Plan. Subsequent to the Effective Date, we have timely filed our Exchange Act periodic reports.
	In connection with the foregoing, as of March 19, 2012, the Company adopted fresh start accounting in accordance with Accounting Standards Codification (“ASC”) 852-10, Reorganizations (as described in Note 3: Fresh Start Accounting). The adoption of fresh start accounting resulted in the Company becoming a new entity for financial reporting purposes. Accordingly, the financial statements prior to March 19, 2012 are not comparable with the financial statements on or after March 19, 2012. Reference to “Successor” refers to the Company on or after the emergence from bankruptcy on March 19, 2012. Reference to “Predecessor” refers to WMMRC prior to the adoption of fresh start accounting and the emergence from bankruptcy.
	The accompanying consolidated financial statements have been prepared pursuant to the SEC’s rules and regulations and, as discussed, also under SLB 2. Certain information and footnote disclosures normally included in the financial statements and prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations; however, the Company believes that the disclosures included are adequate.
	All significant intercompany transactions and balances have been eliminated in preparing the consolidated financial statements.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Management has made significant estimates in certain areas, including valuing certain financial instruments and other assets, the determination of the contingent risk liabilities, and in determining appropriate insurance reserves. Actual results could differ substantially from those estimates.
Fair Value of Certain Financial Instruments	'
	Fair Value of Certain Financial Instruments
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Generally, for assets that are reported at fair value, the Company uses quoted market prices or valuation models to estimate their fair value. These models incorporate inputs such as forward yield curves, market volatilities and pricing spreads, utilizing market-based inputs where readily available. The degree of management judgment involved in estimating the fair value of a financial instrument or other asset is dependent upon the availability of quoted market prices or observable market inputs. For financial instruments that are actively traded in the marketplace or whose values are based on readily available market value data, little judgment is necessary when estimating the instrument’s fair value. When observable market prices and data are not readily available, significant management judgment often is necessary to estimate fair value. In those cases, different assumptions could result in significant changes in valuation.
	The Company classifies certain fixed-maturity investments as trading securities, which are recorded at fair value. The remaining fixed-maturity investments treated as “hold-to-maturity” investments are recorded at amortized cost which, in the case of much of our investment holdings, approximates fair value. As such, changes in unrealized gains and losses on investments held at the balance sheet date are recognized and reported as a component of net investment income on the statement of operations. The Company believes fair value provides better matching of investment earnings to potential cash flow generated from the investment portfolio and reduces subjectivity related to evaluating other-than-temporary impairment on the Company’s investment portfolio.
Fair Value Option	'
	Fair Value Option
	The Company has recorded a liability related to a loss contract fair market value reserve (the “Reserve”) and applies Financial Accounting Standards Board (“FASB”) Fair Value Option accounting guidance to this liability. The Reserve was initially established in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The Company recorded this Reserve to properly value the net economic value of the WMMRC subsidiary as further described in Note 3: Fresh Start Accounting. At each reporting date, the Company reassesses the loss contract reserve which may result in a change to this line item in the balance sheet and statement of operations. Accordingly, any changes in the loss contract reserve at the balance sheet date are recognized and reported within the loss contract reserve fair market value change in the statement of operations. The Company believes Fair Value Option accounting provides better matching of earnings to potential cash flow generated from the WMMRC operating business.
Fair Value Measurement	'
	Fair Value Measurement
	The Company’s estimates of fair value for financial assets and financial liabilities are based on the framework established in the FASB Fair Value Measurements and Disclosures accounting guidance. The framework is based on the inputs used in valuation and requires that observable inputs be used in the valuations when available. The disclosure of fair value estimates in the fair value accounting guidance hierarchy is based on whether the significant inputs into the valuation are observable. In determining the level of the hierarchy in which the estimate is disclosed, the highest priority is given to unadjusted quoted prices in active markets and the lowest priority to unobservable inputs that reflect the Company’s significant market assumptions.
	The three levels of the hierarchy are as follows:
	Level 1—Inputs to the valuation methodology are quoted prices for identical assets or liabilities traded in active markets.
	Level 2—Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market corroborated inputs.
	Level 3—Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company’s own assumptions about the inputs that market participants would use.
	Fair values are based on quoted market prices when available (Level 1). The Company receives the quoted market prices from a third party, nationally recognized pricing service. When market prices are not available, the Company utilizes a pricing service to determine an estimate of fair value. The fair value is generally estimated using current market inputs for similar financial instruments with comparable terms and credit quality, commonly referred to as matrix pricing (Level 2). These valuation techniques involve some level of management estimation and judgment. The Company recognizes transfers between levels in the fair value hierarchy at the end of the reporting period.
Fixed-Maturity Securities	'
	Fixed-Maturity Securities
	Fixed-maturity securities consist of U.S. Treasury securities, obligations of U.S. government agencies, commercial mortgage-backed securities and corporate debt securities. Fixed-maturity securities held in trust are for the benefit of the primary insurers as more fully described in Note 4: Insurance Activity. Investments in fixed-maturity securities are reported at their estimated fair values or amortized cost (as the case may be) and are classified as trading securities in accordance with applicable accounting guidance. Realized gains and losses on the sale of fixed-maturity securities are determined using the specific identification method and are reported as a component of net investment income within the statement of operations.
Cash Equivalents and Investments Held in Trust	'
	Cash Equivalents and Investments Held in Trust
	Cash equivalents, which include highly liquid overnight money market instruments, and fixed-maturity securities are held in trust for the benefit of the primary insurers as more fully described in Note 3: Fresh Start Accounting, and Note 4: Insurance Activity and the following information regarding restrictions on distribution of net assets of subsidiaries.
Third Party Restrictions on Distribution of Net Assets of Wholly-Owned Subsidiaries	'
	Third Party Restrictions on Distribution of Net Assets of Wholly-Owned Subsidiaries
	The net assets of WMMRC are subject to restrictions from distribution from multiple sources including the primary insurers who have approval control of distribution from the trust, the Insurance Commissioner of the State of Hawaii who has approval control prior to distributions or intercompany advances, and additional restrictions as described in Note 8: Notes Payable.
Premium Recognition	'
	Premium Recognition
	Premiums assumed are earned on a daily pro-rata basis over the underlying policy terms. Premiums assumed relating to the unexpired portion of policies in force at the balance sheet date are recorded as unearned premiums. Unearned premiums also include a reserve for post default premium reserves. Post default premium reserves occur when a loan is in a default position and the servicer continues to advance the premiums. If the loan ultimately goes to claim, the premiums advanced during the period of default are subject to recapture. The Company records a default premium reserve based on information provided by the underlying mortgage insurers when they provide information on the default premium reserve separately from other reserves. The change in the default premium reserve is reflected as a reduction or increase, as the case may be, in premiums assumed. The Company has recorded unearned premiums totaling $1.4 million and $0.2 million as of December 31, 2013 and 2012, respectively.
	The Company recognizes premium deficiencies when there is a probable loss on an insurance contract. Premium deficiencies are recognized if the sum of the present value of expected losses and loss adjustment expenses, unamortized deferred acquisition costs, and maintenance costs exceed unearned premiums and anticipated investment income. Premium deficiency reserves have been recorded totaling $2.4 million and $15.1 million as of December 31, 2013 and 2012, respectively.
	The Company’s premium deficiency analysis was performed on a single book basis and includes all book years and reinsurance treaties aggregated together using assumptions based on the actuarial best estimates at the balance sheet date. The calculation for premium deficiency requires significant judgment and includes estimates of future expected premiums, claims, loss adjustment expenses and investment income as of the balance sheet date. To the extent ultimate losses are higher or premiums are lower than estimated, additional premium deficiency reserves may be required in the future.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	Cash and cash equivalents include cash on hand, amounts due from banks, U.S. Treasury bills and overnight investments. Except as described above in Cash Equivalents and Investments Held in Trust, the Company considers all amounts that are invested in highly liquid over-night money market instruments to be cash equivalents. The FDIC insures amounts on deposit with each financial institution up to limits as prescribed by law. The Company may hold funds with financial institutions in excess of the FDIC insured amount, however, the Company has not experienced any losses in such accounts and management believes it is not exposed to any significant credit risk on cash and cash equivalents.
Restricted Cash	'
	Restricted Cash
	Restricted cash consists of amounts held for the express purposes of paying principal, interest and related fees on the Runoff Notes pursuant to the terms of the Indentures.
Ceding Commission Expense	'
	Ceding Commission Expense
	The Company is required to pay a ceding commission to certain primary insurers pursuant to certain reinsurance agreements.
Losses and Loss Adjustment Reserves	'
	Losses and Loss Adjustment Reserves
	The losses and loss adjustment reserve includes case basis estimates of reported losses and supplemental amounts for incurred but not reported losses (“IBNR”). A default is considered the incident (e.g., the failure to make timely payment of mortgage payments) that may give rise to a claim for mortgage insurance. In establishing the losses and loss adjustment reserve, the Company utilizes the findings of an independent consulting actuary. The consulting actuary estimates ultimate loss rates based upon industry data and claims and exposure data provided by the primary mortgage insurance carriers and assumptions of prepayment speed relative to loans reinsured by the Company. The fully developed ultimate loss rates are then applied to cumulative earned premium and reduced for cumulative losses and loss adjustment expenses paid to arrive at the liability for unpaid losses and loss adjustment expenses. Actuarial methods utilized by the consulting actuary to derive the ultimate loss rates, include the loss development method, simulated loss development method, Bornhuetter-Ferguson method and simulated Bornhuetter-Ferguson method on a paid and incurred basis. Due to the current condition of the mortgage insurance market, WMMRC has recorded reserves at the higher of (x) reserves estimated by the consulting actuary for each primary mortgage guaranty carrier and (y) ceded case reserves and IBNR levels reported by the primary mortgage guaranty carriers as of December 31, 2013 and 2012, respectively. Management believes that its aggregate liability for unpaid losses and loss adjustment expenses at period end represents its best estimate, based upon the available data, of the amount necessary to cover the current cost of losses. However, due to the inherent uncertainty arising from fluctuations in the persistency rate of mortgage insurance claims, the Company’s size and lack of prior operating history, external factors such as future changes in regional or national economic conditions, judicial decisions, federal and state legislation related to mortgage restructuring and foreclosure restrictions, claims denials and coverage rescissions by primary carriers and other factors beyond management’s control, it is not presently possible to determine whether actual loss experience will conform to the assumptions used in determining the estimated amounts for such liability at the balance sheet date. Accordingly, the ultimate liability could be significantly higher or lower, as the case may be, of the amount indicated in the financial statements and there can be no assurance that the reserve amounts recorded will be sufficient. As adjustments to these estimates become necessary, such adjustments are reflected in current operations.
Loss Contract Fair Market Value Reserves	'
	Loss Contract Fair Market Value Reserves
	A loss contract fair market value reserve relating to contractual obligations of WMMRC was established at March 19, 2012 as a result of applying Fresh Start Accounting (more fully described in Note 3: Fresh Start Accounting) and in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The fair market value of this reserve is analyzed quarterly and is adjusted accordingly. This adjustment to the reserve produces an expense or contra-expense in the statement of operations.
Fresh Start Accounting	'
	Fresh Start Accounting
	The Company adopted fresh start accounting in accordance with ASC 852 (Reorganizations) (“ASC 852”). See Note 3: Fresh Start Accounting for a description of the Company’s application of this standard.
Comprehensive Income (Loss)	'
	Comprehensive Income (Loss)
	The Company has no comprehensive income (loss) other than the net income (loss) disclosed in the consolidated statement of operations.
Earnings (Loss) Per Common Share	'
	Earnings (Loss) Per Common Share
	Basic earnings (loss) per common share is computed by dividing net income (loss) applicable to the Company’s common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is computed by dividing net income (loss) applicable to the Company’s common shareholders by the weighted average number of common shares outstanding during the period and the effect of all dilutive common stock equivalents (of which we had zero). If common share equivalents existed, in periods where there is a net loss, diluted loss per common share would be equal to or less than basic loss per common share, since the effect of including any common share equivalents would be antidilutive.
Share Based Compensation	'
	Share Based Compensation
	On May 22, 2012, WMIHC’s board of directors approved the 2012 Long-Term Incentive Plan (the “2012 Plan”) to award restricted stock to its non-employee directors and to have a plan in place for awards to executives and others in connection with the Company’s operations and future strategic plans. A total of 2 million shares of common stock were initially reserved for future issuance under the Plan, which became effective upon the board of directors approval on May 22, 2012. The 2012 Plan provides for the granting of restricted shares and other cash and share based awards. The value of restricted stock is determined using the fair market value of the shares on the issuance date.
Income Taxes	'
	Income Taxes
	The Company follows the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future income tax consequences attributable to differences between the carrying amounts and tax bases of assets and liabilities and losses carried forward and tax credits. Deferred tax assets and liabilities are measured using enacted tax rates and laws applicable to the years in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided to the extent that it is more likely than not that deferred tax assets will not be realized.
	The Company recognizes the financial statement effects of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. Penalties and interest, of which there are none, would be reflected in income tax expense. Tax years are open to the extent the Company has net operating loss carry-forwards available to be utilized currently.
Dividend Policy	'
	Dividend Policy
	WMIHC has paid no dividends on or after the Effective Date and currently has no plans to pay a dividend. The Financing Agreement and the Note Purchase Agreement (as such are defined in Note 9: Financing Arrangements) include restrictions related to the payment of dividends.
New Accounting Pronouncements	'
	New Accounting Pronouncements
	In July 2013 the FASB issued Accounting Standards Update 2013-11, Presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This standard is effective for public entities for fiscal years and interim periods within those years beginning after December 15, 2013. The Company has reviewed this standard and determined it has no material impact on the Company’s consolidated financial position, results of operations, or disclosure requirements.
	In December 2013 the FASB issued Accounting Standards Update 2013-12, Definition of a Public Business Entity—An addition to the Master Glossary. This amendment has no effective date, but the term “public business entity” will be used in the 2014 Accounting Standards. The Company has reviewed this standard and determined it has no material impact on the Company’s consolidated financial position, results of operations, or disclosure requirements.

Fresh_Start_Accounting_Tables

Fresh Start Accounting (Tables)	12 Months Ended
	Dec. 31, 2013
Reorganizations [Abstract]	'
Assets and Liabilities at Fair Value	'
	Adjustments recorded to the Predecessor, after giving effect to the implementation of the Plan and to record assets and liabilities at fair value pursuant to the adoption of fresh start accounting are summarized below:
	(dollars in thousands except per share amounts)		Predecessor		Reorganization			Fair Value			Successor
			March 19,		Adjustments  (a)			Adjustments (b)			March 19,
			2012								2012
	ASSETS
	Investments held in trust, at fair value:
	Fixed-maturity securities		$	303,169	$	—		$	—		$	303,169
	Cash equivalents held in trust			26,249		—			—			26,249
	Total investments held in trust			329,418		—			—			329,418
	Cash and cash equivalents			7,014		75,000	(c)		—			82,014
	Fixed-maturity securities, at fair value			6,049		—			—			6,049
	Accrued investment income			2,313		—			—			2,313
	Other assets			3,389		210,000	(d)		-210,000	(i)		3,389
	Total assets		$	348,183	$	285,000		$	-210,000		$	423,183
	LIABILITIES AND SHAREHOLDERS’ EQUITY
	Liabilities:
	Notes payable—principal		$	—	$	130,000	(e)	$	—		$	130,000
	Losses and loss adjustment reserves			141,010		—			—			141,010
	Losses payable			7,585		—			—			7,585
	Unearned premiums			409		—			—			409
	Accrued ceding commissions			466		—			—			466
	Loss contract fair market value reserve			—		—			63,064	(j)		63,064
	Other liabilities			27,156		-23,109	(f)		2	(f)		4,049
	Total liabilities			176,626		106,891			63,066			346,583
	Shareholders’ equity:
	Common stock, $.00001 par value; 500,000,000 authorized, 200,000,000 shares issued and outstanding			—		2	(g)		—			2
	Common stock, $1 par value, 1,000 shares issued and outstanding			1		—			-1	(k)		—
	Additional paid-in capital (Predecessor)			69,879		—			-69,879	(l)		—
	Additional paid-in capital (Successor)			—		154,998	(g)		-78,400	(m)		76,598
	Retained earnings			101,677		23,109	(h)		-124,786	(n)		—
	Total shareholders’ equity			171,557		178,109			-273,066			76,600
	Total liabilities and shareholders’ equity		$	348,183	$	285,000		$	-210,000		$	423,183
	The following notes relate to the table above and should be read in conjunction with the information in such table.
	(a)	These adjustments are necessary to give effect to the Plan, including the receipt of cash proceeds associated with the contribution of cash from certain creditors, issuance of debt securities, issuance of 200 million shares of common stock and other transactions as contemplated under the Plan.
	(b)	These adjustments are necessary to reflect assets and liabilities at fair value and elimination of Predecessor equity. The primary operating business of the Successor is the WMMRC subsidiary which has a net asset value higher than its Fair Market Value (“FMV”).
	(c)	This adjustment reflects $75 million of cash contributed to the Company on the Effective Date by certain creditors.
	(d)	This adjustment reflects the Court’s valuation of WMMRC of $140 million and additional value attributable to the NOLs. These items have been adjusted to FMV as part of the application of Fresh Start Accounting. The Court’s valuation is presented solely for information purposes, however, because management does not believe that the Court’s valuation necessarily reflects the actual or FMV of the Company’s assets and liabilities under GAAP. This adjustment is eliminated as described in (i) below.
	(e)	This adjustment reflects the issuance of $130 million of Runoff Notes as described in Note 8: Notes Payable below.
	(f)	This adjustment reflects eliminating an intercompany payable occurring from carve-out allocated costs related to historic charges allocated as if services had been performed and charged to the Predecessor in accordance with Staff Accounting Bulletin (“SAB”) Topic 1B and 1B1. The methodology for these charges is based on applying the current contractual relationships described in Note 7: Service Agreements and Related Party Transactions as if they had been in place since the formation of WMMRC. The impact on historic earnings is described in (h) below. Additionally, this eliminates the offsetting intercompany amount created when Predecessor common stock is eliminated.
	(g)	This adjustment reflects the calculated value of the 200 million shares of common stock issued before adjusting for FMV as a result of Fresh Start Accounting. This amount results from the use of the Court-assigned (non-GAAP) values attributed to assets and liabilities which are then utilized in calculating the resulting balance attributable to equity. The common stock is recorded at par value calculated as 200 million shares at a par value of $0.00001 per share. The remainder of the value is then attributed to additional paid-in capital.
	(h)	This adjustment increases the retained earnings of the Predecessor due to the elimination of the carve-out costs which decreased historic earnings of the Predecessor. The resulting intercompany payable is described in (f) above. These costs and the related retained earnings are eliminated as the costs were allocated in accordance with SAB Topics 1B and 1B1 and would have eliminated in consolidation.
	(i)	This adjustment reflects the elimination of the Court assigned values described in (d) above. There has been no goodwill recorded as a result of this transaction. WMMRC is reported as the Predecessor and therefore is carried at FMV in individual line items. Management believes that the Court’s valuation was inconsistent with GAAP and such information related to such valuation is being presented here for informational purposes only. Therefore, elimination is required to present the opening balance sheet in accordance with GAAP.
	(j)	This adjustment is required to reflect a loss contract fair market value reserve of $63.1 million relating to contractual obligations of WMMRC. This is in compliance with ASC 805-10-55-21(b)(1) which defines a loss contract as a “contract in which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it.” The net assets or equity value of WMMRC totaled $171.6 million prior to reorganization and fair value adjustments. The elimination of the costs and intercompany payable allocated to the predecessor in accordance with SAB Topic 1B and 1B1 and described in (f) above increase the equity value to $194.7 million. The value of WMMRC was reduced by $63.1 million based upon the FMV analysis described above.
	Predecessor retained earnings		$	101,677
	Adjustment for carve-out allocations			23,109
	Predecessor adjusted retained earnings			124,786
	Predecessor additional paid-in capital			69,879
	Predecessor common stock eliminated in consolidation			-1
	Predecessor equity value			194,664
	Fair market value of WMMRC			131,600
	Loss contract fair market reserve allowance		$	63,064
	(k)	This adjustment reflects the elimination of common stock of the Predecessor.
	(l)	This adjustment reflects the elimination of additional paid-in capital of the Predecessor.
	(m)	This adjustment reflects the reduction of equity value resulting from Fresh Start Accounting. It is comprised of a reduction (relative to Court assigned FMV) in WMMRC’s FMV totaling $8.4 million and the elimination of the Court assigned value of $70 million related to NOLs. Although the Company has substantial NOLs they are subject to a 100 percent valuation allowance as described in Note 6: Income Taxes, and there can be no assurance the Company will be able to realize any benefit from the NOLs.
	Fair market value of WMMRC (Court assigned)		$	140,000
	Fair market value of WMMRC			131,600
	Fair market value reduction			8,400
	Elimination of Court assigned value related to NOLs			70,000
	Total change in fair market value affecting Equity Value		$	78,400
	Court assigned Equity Value recorded as additional paid-in capital		$	154,998
	Total change in fair market value affecting Equity Value			78,400
	Additional paid-in capital at March 19, 2012		$	76,598
	(n)	This adjustment reflects the elimination of adjusted retained earnings of the Predecessor.
Predecessor retained earnings		$	101,677
Adjustment for carve-out allocations			23,109
Predecessor adjusted retained earnings		$	124,786
Adjustment Reflects the Elimination of Adjusted Retained Earnings	'
	Predecessor retained earnings		$	101,677
	Adjustment for carve-out allocations			23,109
	Predecessor adjusted retained earnings			124,786
	Predecessor additional paid-in capital			69,879
	Predecessor common stock eliminated in consolidation			-1
	Predecessor equity value			194,664
	Fair market value of WMMRC			131,600
	Loss contract fair market reserve allowance		$	63,064
	(k)	This adjustment reflects the elimination of common stock of the Predecessor.
	(l)	This adjustment reflects the elimination of additional paid-in capital of the Predecessor.
	(m)	This adjustment reflects the reduction of equity value resulting from Fresh Start Accounting. It is comprised of a reduction (relative to Court assigned FMV) in WMMRC’s FMV totaling $8.4 million and the elimination of the Court assigned value of $70 million related to NOLs. Although the Company has substantial NOLs they are subject to a 100 percent valuation allowance as described in Note 6: Income Taxes, and there can be no assurance the Company will be able to realize any benefit from the NOLs.
	Fair market value of WMMRC (Court assigned)		$	140,000
	Fair market value of WMMRC			131,600
	Fair market value reduction			8,400
	Elimination of Court assigned value related to NOLs			70,000
	Total change in fair market value affecting Equity Value		$	78,400
	Court assigned Equity Value recorded as additional paid-in capital		$	154,998
	Total change in fair market value affecting Equity Value			78,400
	Additional paid-in capital at March 19, 2012		$	76,598
	(n)	This adjustment reflects the elimination of adjusted retained earnings of the Predecessor.
	Predecessor retained earnings		$	101,677
	Adjustment for carve-out allocations			23,109
	Predecessor adjusted retained earnings		$	124,786
Adjustment in Fair Value and Reorganization	'
	Predecessor retained earnings		$	101,677
	Adjustment for carve-out allocations			23,109
	Predecessor adjusted retained earnings			124,786
	Predecessor additional paid-in capital			69,879
	Predecessor common stock eliminated in consolidation			-1
	Predecessor equity value			194,664
	Fair market value of WMMRC			131,600
	Loss contract fair market reserve allowance		$	63,064
Adjustment Reflects Reduction of Equity Value Resulting from Fresh Start Accounting	'
	Fair market value of WMMRC (Court assigned)		$	140,000
	Fair market value of WMMRC			131,600
	Fair market value reduction			8,400
	Elimination of Court assigned value related to NOLs			70,000
	Total change in fair market value affecting Equity Value		$	78,400
	Court assigned Equity Value recorded as additional paid-in capital		$	154,998
	Total change in fair market value affecting Equity Value			78,400
	Additional paid-in capital at March 19, 2012		$	76,598

Insurance_Activity_Tables

Insurance Activity (Tables)	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Schedule of Premiums Assumed and Earned	'
	Premiums assumed and earned are as follows for the periods ended December 31, 2013, 2012 and 2011, respectively:
		Successor		Successor		Predecessor		Predecessor
		Year ended		Period from		Period from		Year ended
		December 31,		20-Mar-12		1-Jan-12		December 31,
		2013		through December 31,		through March 19,		2011
				2012		2012
	Premiums assumed	$	12,115	$	14,210	$	6,130	$	34,562
	Change in unearned premiums		-1,169		184		47		222
	Premiums earned	$	10,946	$	14,394	$	6,177	$	34,784
Components of Liability for Losses and Loss Adjustment Reserves	'
	The components of the liability for losses and loss adjustment reserves are as follows as of December 31, 2013 and 2012, respectively:
		Successor		Successor
		December 31,		December 31,
		2013		2012
	Case-basis reserves	$	41,159	$	66,173
	IBNR reserves		713		1,298
	Premium deficit reserves		2,442		15,053
	Total	$	44,314	$	82,524
Summary of Losses and Loss Adjustment Reserve Activity	'
	Losses and loss adjustment reserve activity are as follows for the years ended December 31, 2013, 2012 and 2011, respectively:
		Successor		Successor		Predecessor
		December 31,		December 31,		December 31,
		2013		2012		2011
	Balance at beginning of period	$	82,524	$	142,119	$	190,036
	Incurred—prior periods		-6,159		30,111		47,321
	Paid or terminated—prior periods		-32,051		-89,706		-95,238
	Total	$	44,314	$	82,524	$	142,119

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Schedule of Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses and Estimated Fair Values of Fixed-Maturity Securities	'
	The amortized cost, gross unrealized gains, gross unrealized losses and estimated fair values of fixed-maturity securities held in trust at December 31, 2013, are as follows:
		Amortized		Gross		Gross				Estimated
		Cost		Unrealized		Unrealized				Fair Value
				Gains		Losses
	Trading Securities:
	Obligations of U.S. government sponsored enterprises	$	15,868	$	127	$	-163			$	15,832
	Corporate debt securities		80,624		1,450		-182				81,892
	Commercial paper		98,929		4		-1				98,932
	Foreign corporate debt securities		22,166		149		-170				22,145
	Total fixed-maturity securities		217,587		1,730		-516				218,801
	Less total unrestricted fixed-maturity securities—trading		7,326		232		-13				7,545
	Less total unrestricted fixed-maturity securities—held to maturity		65,352		—		—				65,352
	Total fixed-maturity securities held in trust	$	144,909	$	1,498	$	-503			$	145,904
	The amortized cost, gross unrealized gains, gross unrealized losses and estimated fair values of fixed-maturity securities held in trust at December 31, 2012, are as follows:
		Amortized		Gross		Gross				Estimated
		Cost		Unrealized		Unrealized				Fair Value
				Gains		Losses
	Trading Securities:
	Obligations of U.S. government sponsored enterprises	$	97,103	$	1,416	$	-156			$	98,363
	Corporate debt securities		91,997		3,010		-34				94,973
	Commercial paper		54,949		—		—				54,949
	Foreign corporate debt securities		18,305		379		-18				18,666
	Commercial mortgage-backed securities		10,541		64		-87				10,518
	Total fixed-maturity securities		272,895		4,869		-295				277,469
	Less total unrestricted fixed-maturity securities—trading		14,246		168		-18				14,396
	Less total unrestricted fixed-maturity securities—held to maturity		61,413		—		—				61,413
	Total fixed-maturity securities held in trust	$	197,236	$	4,701	$	-277			$	201,660
Schedule of Amortized Cost and Estimated Fair Value of Fixed-Maturity Securities by Contractual Maturity	'
	Amortized cost and estimated fair value of fixed-maturity securities at December 31, 2013 by contractual maturity are as follows:
		Amortized		Estimated
		Cost		Fair Value
	Maturity in:
	2014	$	120,536	$	120,604
	2015-2018		92,692		93,944
	2019-2023		4,359		4,253
	Thereafter		—		—
	Total fixed-maturity securities	$	217,587	$	218,801
Summary of Net Investment Income (Loss)	'
	Net investment income (loss) for the periods ending December 31, 2013, 2012 and 2011, respectively, is summarized as follows:
		Successor		Successor				Predecessor				Predecessor
		Year Ended		Period from				Period from				Year ended
		December 31,		March 20, 2012				January 1, 2012				December 31,
		2013		through				through				2011
				December 31,				March 19,
				2012				2012
	Investment income (loss):
	Amortization of premium or discount on fixed-maturity securities	$	-2,309	$	-1,837			$	-523			$	-2,750
	Investment income on fixed-maturity securities		6,588		7,232				2,467				12,920
	Interest income on cash and equivalents		10		161				3				49
	Realized net gain (loss) from sale of investments		-1,575		2,747				176				1,206
	Unrealized (losses) gains on trading securities held at period end		-3,492		-1,410				1,049				-2,828
	Net investment income (loss)	$	-778	$	6,893			$	3,172			$	8,597
Schedule of Investments in Accordance with Fair Value Measurement	'
	The following tables show how the Company’s investments are categorized in accordance with fair value measurement, as of December 31, 2013 and 2012, respectively:
		December 31, 2013
		Level 1		Level 2		Level 3				Total
	Class of Security:
	Obligations of U.S. government sponsored enterprises	$	6,299	$	9,533	$	—			$	15,832
	Corporate debt securities		11,891		70,001		—				81,892
	Commercial paper		98,932		—		—				98,932
	Foreign corporate debt securities		7,652		14,493		—				22,145
	Total fixed maturity securities		124,774		94,027		—				218,801
	Money market funds		44,863		—		—				44,863
	Total	$	169,637	$	94,027	$	—			$	263,664
		December 31, 2012
		Level 1		Level 2		Level 3				Total
	Class of Security:
	Obligations of U.S. government sponsored enterprises	$	11,362	$	87,001	$	—			$	98,363
	Corporate debt securities		22,833		72,141		—				94,974
	Commercial paper		54,948		—		—				54,948
	Foreign corporate debt securities		1,001		17,665		—				18,666
	Commercial mortgage-backed securities		—		10,518		—				10,518
	Total fixed maturity securities		90,144		187,325		—				277,469
	Money market funds		33,628		—		—				33,628
	Total	$	123,772	$	187,325	$	—			$	311,097
Summary of Transfers between Level 1 and Level 2	'
		2013				2012
		Transfers from		Transfers from		Transfers from				Transfers from
		Level 1 to		Level 2 to		Level 1 to				Level 2 to
		Level 2		Level 1		Level 2				Level 1
	Class of Securities:
	Corporate securities	$	—	$	4,598	$	—			$	16,745
	Foreign corporate debt securities		—		2,537		—				1,001
	Total Transfers	$	—	$	7,135	$	—			$	17,746

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Income Tax Expense (Benefit)	'
	The Company has not recorded an income tax expense or benefit for the years ended December 31, 2013, 2012 or 2011.
		2013		2012		2011
	Current federal income tax expense	$	—	$	—	$	—
	Provision for doubtful federal income tax receivable		—		—		—
	Deferred federal income tax (benefit) expense		—		—		—
	Federal income tax benefit	$	—	$	—	$	—
Schedule of Effective Income Tax Rate Reconciliation	'
	The items accounting for the difference between income taxes computed at the US federal statutory rate and our effective rate were as follows:
		Successor		Successor				Predecessor		Predecessor
		Year Ended		Period from				Period from		Year ended
		December  31,		March 20, 2012				1-Jan-12		December 31,
		2013		through December 31,				through March 19,		2011
				2012				2012
	Income tax at the federal statutory rate of 35%		35%		-35%				-35%		-35%
	Effect of:
	Fresh start accounting adjustments		—		—				—		(3)
	Worthless stock deduction		13		(23,718)				—		—
	Cancelation of debt		—		2,401				—		—
	As filed adjustments		(14,505)		—				—		—
	Reduction in NOL due to 382 Limitation		—		4,518				—		—
	Change in valuation allowance		14,457		16,834				35		38
	Effective Rate		—  %		—  %				—  %		—  %
Components of Net Deferred Tax Asset	'
	The components of the net deferred tax asset as of December 31, 2013 and 2012, respectively, are as follows:
		2013		2012
	Deferred federal income tax asset:
	Losses and loss adjustments expenses	$	143	$	2,832
	Net operating loss carryforward		2,087,490		2,088,461
	Accruals and reserves		16,387		18,276
	As filed adjustments		130		—
	Capital loss carryforward		52,756		—
	Total deferred federal income tax asset		2,156,906		2,109,569
	Deferred federal income tax liabilities:
	Net unrealized gains on investments		425		1,946
	Total deferred federal income tax liabilities		425		1,946
	Less: Valuation allowance		2,156,481		2,107,623
	Net deferred federal income tax asset	$	—	$	—

Capital_Stock_Tables

Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Schedule of Unamortized Value of Restricted Stock	'
	The unamortized value of $706 thousand at December 31, 2013, if all are ultimately vested will be amortized according to the following schedule.
	Amortization Schedule (in thousands)
	1st quarter 2014		100
	2nd quarter 2014		100
	3rd quarter 2014		100
	4th quarter 2014		100
	1st quarter 2015		96
	2nd quarter 2015		54
	3rd quarter 2015		54
	4th quarter 2015		54
	1st quarter 2016		48
	Total Unamortized value	$	706
Summary of Company's Restricted Share Award Activity	'
	A summary of WMIHC’s restricted share award activity for the years ended December 31, 2013 and 2012 is presented below. The 2012 Plan did not exist in 2011. Consequently, no awards of restricted shares were made in 2011.
		Number			Weighted-		Aggregate
		of Restricted			Average Grant		Intrinsic
		Stock Awards			Date Fair		Value
		Outstanding			Value		(in thousands)
	Outstanding—January 1, 2012		—		$	—	$	—
	Restricted stock awards granted during 2012		1,156,078			0.4761		550
	Restricted stock awards released or forfeited during 2012		—			—		—
	Outstanding—December 31, 2012		1,156,078			0.4761		550
	Restricted stock awards granted during 2013		686,273			1.02		700
	Restricted stock awards released or forfeited during 2013		—			—		—
	Outstanding—December 31, 2013		1,842,351		$	0.6787	$	1,250
Summary of Company's Restricted Shares Issued and Subject to Repurchase	'
	A summary of WMIHC’s restricted shares issued and subject to repurchase as of the years ended December 31, 2013 and 2012 is presented below. There were no WMIHC restricted shares issued and subject to repurchase during 2011.
		Shares
	Unvested shares—January 1, 2012		—
	Shares issued subject to vesting during 2012		1,156,078
	Unvested shares repurchased during 2012		—
	Shares vested during 2012		—
	Unvested shares—December 31, 2012		1,156,078
	Shares issued subject to vesting during 2013		686,273
	Unvested shares repurchased during 2013		—
	Shares vested during 2013		(385,364	)
	Unvested shares—December 31, 2013		1,456,987

Net_Income_Loss_Per_Common_Sha1

Net Income (Loss) Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Net Income (Loss) Per Share	'
	The following table sets forth the computation of basic and diluted net income (loss) per share:
	(in thousands, except per share data):
		Successor		Successor		Predecessor		Predecessor
		Year Ended		Period from		Period from		Year Ended
		December 31, 2013		March 20, 2012 to		January 1, 2012 to		December 31, 2011
				December 31, 2012		19-Mar-12
	Numerator for basic and diluted net income (loss) per share:
	Net income (loss)	$	338	$	-12,353	$	-3,433	$	-10,873
	Less: Net income (loss) allocated to participating securities		2		-18		—		—
	Net income (loss) attributable to common shareholders	$	336	$	-12,335	$	-3,433	$	-10,873
	Denominator for basic and diluted net income (loss) per share:
	Weighted-average shares outstanding		201,419, 306		200,298,083		1,000		1,000
	Weighted-average unvested restricted shares outstanding		-1,115,238		-298,083		—		—
	Denominator for basic and diluted net income (loss) per share:		200,304,068		200,000,000		1,000		1,000
	Basic and diluted net income (loss) per share attributable to common shareholders	$	0.00	$	-0.06	$	-3,433.00	$	-10,873.00

Quarterly_Financial_Informatio1

Quarterly Financial Information (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Summary of Unaudited Interim Results of Operations	'
	Following is a summary of the unaudited interim results of operations for the year ended December 31, 2013, 2012 and 2011, respectively, (in thousands, except per share amounts):
		Total Revenue		Net Income (Loss)		Earnings per
						share – basic
						and diluted
	Successor
	Year Ended December 31, 2013
	First Quarter	$	4,101	$	-3,816	$	-0.02
	Second Quarter		-974		-2,484		-0.01
	Third Quarter		3,723		-878		-0.01
	Fourth Quarter		3,318		7,516		0.04
	Total	$	10,168	$	338	$	0.00
	Period from March 20, 2012 to December 31, 2012
	March 20 to March 31, 2012	$	1,922	$	472	$	0.00
	Second Quarter		7,447		-8,173		-0.04
	Third Quarter		7,336		5,299		0.03
	Fourth Quarter		4,582		-9,951		-0.05
	Total	$	21,287	$	-12,353	$	-0.06
	Predecessor
	January 1 to March 19, 2012	$	9,349	$	-3,433	$	-3,433.00
	Year Ended December 31, 2011
	First Quarter	$	10,823	$	-1,891	$	-1,891.00
	Second Quarter		13,208		-1,368		-1,368.00
	Third Quarter		9,103		-6,264		-6,264.00
	Fourth Quarter		10,247		-1,350		-1,350.00
	Total	$	43,381	$	-10,873	$	-10,873.00

Subsequent_Events_Tables

Subsequent Events (Tables)	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Schedule of Subordinate Note Redemption	'
	Date	Percentage
	3rd anniversary of the Initial Issue Date		103.75	%
	4th anniversary of the Initial Issue Date		101.875	%
	5th anniversary of the Initial Issue Date and thereafter		100	%

The_Company_and_its_Subsidiari1

The Company and its Subsidiaries - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Mar. 19, 2012

Sep. 25, 2008

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Jul. 17, 2012

Dec. 31, 2013

Jul. 17, 2012

Operations

New WMI Shareholders [Member]

Escrow Deposit [Member]

WMI Holdings Corp. [Member]

13% Senior First Lien Notes [Member]

13% Senior First Lien Notes [Member]

13% Senior First Lien Notes [Member]

13% Senior Second Lien Notes [Member]

First Lien Note [Member]

WMMRC [Member]

WMMRC [Member]

Pmi [Member]

Insurers

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of operations

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assets sold of WMB in exchange for payment

'

'

'

$1,880,000,000

'

'

'

'

'

'

'

'

'

'

'

Debtors field plan

12-Dec-11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Plan Effective Date

19-Mar-12

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Claims distributed to parties-in-interest

6,500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash received from creditors

75,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior credit facility

125,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior credit facility for working capital

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior credit facility for acquisitions and originations

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issued aggregate principal amount

'

'

'

'

'

'

'

110,000,000

'

'

20,000,000

'

'

'

'

Debt amount percentage

'

'

'

'

'

'

'

13.00%

'

'

13.00%

'

'

'

'

Common stock, shares issued

201,842,351

201,156,078

'

'

194,670,501

5,329,499

200,000,000

'

'

'

'

'

'

'

'

Abandoned stock

'

8,370,000,000

8,370,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Available and utilizable NOL

5,960,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of primary mortgage insurers

'

'

'

'

'

'

'

'

'

'

'

'

'

7

'

Loss from contract termination

'

6,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount paid by PMI

'

'

'

'

'

'

'

'

'

'

'

'

30,700,000

'

49,000,000

Cash paid to stockholders

'

'

'

'

'

'

'

'

'

'

'

25,000,000

'

'

'

Interest paid on Notes

'

'

'

'

'

'

'

9,700,000

3,700,000

0

'

3,700,000

'

'

'

Principal payment on Notes

'

'

'

'

'

'

'

'

'

'

'

$21,300,000

'

'

'

Significant_Accounting_Policie2

Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Line Items]	'	'
Premium deficiency reserves	$2,400,000	$15,100,000
Comprehensive income (loss)	0	'
Number of dilutive effect of common stock equivalents	0	'
Common stock initially reserved for future issuance	2,000,000	'
Amount of dividends paid on or after Effective Date	0	'
Successor [Member]	'	'
Significant Accounting Policies [Line Items]	'	'
Unearned premiums	$1,394,000	$225,000

Fresh_Start_Accounting_Additio

Fresh Start Accounting - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Mar. 19, 2012
Statement Of Financial Position [Abstract]	'	'
Minimum percentage of shares held by voter before confirmation of reorganization	50.00%	'
Company's reorganization value	'	$76.60
Amount of cash used for Plan-related liabilities	76.6	'
Loss contract fair market value reserve	'	$63.10

Fresh_Start_Accounting_Assets_

Fresh Start Accounting - Assets and Liabilities at Fair Value (Detail) (USD $)	Mar. 19, 2012	Dec. 31, 2013
In Thousands, unless otherwise specified		Reorganization Adjustments [Member]
Investments held in trust, at fair value:	'	'
Fixed-maturity securities, Predecessor	$303,169	'
Cash equivalents held in trust, Predecessor	26,249	'
Total investments held in trust, Predecessor	329,418	'
Cash and cash equivalents, Predecessor	7,014	'
Fixed-maturity securities, at fair value, Predecessor	6,049	'
Accrued investment income, Predecessor	2,313	'
Other assets, Predecessor	3,389	'
Total assets, Predecessor	348,183	'
Fixed-maturity securities, Successor	303,169	'
Cash equivalents held in trust, Successor	26,249	'
Total investments held in trust, Successor	329,418	'
Cash and cash equivalents, Successor	82,014	'
Fixed-maturity securities, at fair value, Successor	6,049	'
Accrued investment income, Successor	2,313	'
Other assets, Successor	3,389	'
Total assets, Successor	423,183	'
Liabilities:	'	'
Losses and loss adjustment reserves, Predecessor	141,010	'
Losses payable, Predecessor	7,585	'
Unearned premiums, Predecessor	409	'
Accrued ceding commissions, Predecessor	466	'
Other liabilities, Predecessor	27,156	'
Total liabilities, Predecessor	176,626	'
Notes payable-principal, Reorganization Adjustments	130,000	'
Other liabilities, Reorganization Adjustments	-23,109	'
Total liabilities, Reorganization Adjustments	106,891	'
Loss contract fair market value reserve, Fair Value Adjustments	63,064	'
Other liabilities, Fair Value Adjustments	2	'
Total liabilities, Fair Value Adjustments	63,066	'
Notes payable, Successor	130,000	'
Losses and loss adjustment reserves, Successor	141,010	'
Losses payable, Successor	7,585	'
Unearned premiums, Successor	409	'
Accrued ceding commissions, Successor	466	'
Loss contract fair market value reserve, Successor	63,064	'
Other liabilities, Successor	4,049	'
Total liabilities, Successor	346,583	'
Shareholders' equity:	'	'
Common stock, Predecessor	1	'
Additional paid-in capital, Predecessor	69,879	'
Retained earnings, Predecessor	101,677	'
Total shareholders' equity, Predecessor	171,557	'
Total liabilities and shareholders' equity, Predecessor	348,183	'
Common stock, Reorganization Adjustments	2	'
Additional paid-in capital, Reorganization Adjustments	154,998	'
Retained earnings, Reorganization Adjustments	23,109	'
Total shareholders' equity, Reorganization Adjustments	178,109	'
Total liabilities and shareholders' equity, Reorganization Adjustments	285,000	'
Common stock, Fair Value Adjustments	-1	'
Additional paid-in capital (Predecessor), Fair Value Adjustments	-69,879	'
Additional paid-in capital (Successor), Fair Value Adjustments	-78,400	'
Retained earnings, Fair Value Adjustments	-124,786	'
Total shareholders' equity, Fair Value Adjustments	-273,066	'
Total liabilities and shareholders' equity, Fair Value Adjustments	-210,000	'
Postconfirmation, Common Stock	2	'
Postconfirmation, Additional Paid-in Capital	76,598	'
Total shareholders' equity, Successor	76,600	'
Total liabilities and shareholders' equity, Successor	423,183	'
Cash and cash equivalents, Reorganization Adjustments	75,000	'
Other assets, Reorganization Adjustments	210,000	'
Total assets, Reorganization Adjustments	285,000	'
Other assets, Fair Value Adjustments	-210,000	'
Total assets, Fair Value Adjustments	-210,000	'
Goodwill recorded	'	$0

Fresh_Start_Accounting_Assets_1

Fresh Start Accounting - Assets and Liabilities at Fair Value (Parenthetical) (Detail) (USD $)

0 Months Ended

0 Months Ended

3 Months Ended

Mar. 19, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 19, 2012

Mar. 19, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 19, 2012

Mar. 19, 2012

Mar. 19, 2012

Mar. 19, 2012

Mar. 19, 2012

WMMRC [Member]

Runoff Notes [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Fair Value Adjustments [Member]

Reorganization Adjustments [Member]

Predecessor [Member]

Predecessor [Member]

Fresh-Start Adjustment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, par value

'

$0.00

'

'

'

$0.00

$0.00

$0.00

$1

$0.00

$0.00

$0.00

Common stock, shares outstanding

'

201,842,351

201,156,078

'

'

201,842,351

201,156,078

200,000,000

1,000

200,000,000

1,000

1,000

Common stock, shares issued

'

201,842,351

201,156,078

'

'

201,842,351

201,156,078

200,000,000

1,000

200,000,000

1,000

1,000

Common stock, shares authorized

'

500,000,000

'

'

'

500,000,000

500,000,000

500,000,000

'

500,000,000

'

'

Cash contributed to the Company by creditors

$75,000,000

'

'

'

'

'

'

'

'

'

'

$75,000,000

Court's valuation of WMMRC

'

'

'

140,000,000

'

'

'

'

'

'

'

'

Outstanding amount of notes

'

'

'

'

130,000,000

'

'

'

'

'

'

'

Net assets or equity value

'

'

'

171,600,000

'

'

'

'

'

'

'

'

Loss contract fair market value reserve

63,100,000

'

'

'

'

46,319,000

52,217,000

63,100,000

'

'

'

'

Increase in equity value

'

'

'

'

'

'

'

'

'

'

194,700,000

'

Reduction in WMMRC's FMV

8,400,000

'

'

8,400,000

'

'

'

'

'

'

'

'

Value related to NOLs

$70,000,000

'

'

'

'

'

'

'

'

'

'

'

Valuation allowance

100.00%

'

'

'

'

'

'

'

'

'

'

'

Fresh_Start_Accounting_Adjustm

Fresh Start Accounting - Adjustment in Fair Value and Reorganization (Detail) (USD $)	Mar. 19, 2012
In Thousands, unless otherwise specified
Adjustment in fair value and reorganization	'
Predecessor retained earnings	($101,677)
Adjustment for carve-out allocations	-23,109
Predecessor adjusted retained earnings	124,786
Predecessor additional paid-in capital	-69,879
Predecessor common stock eliminated in consolidation	1
Predecessor [Member]	'
Adjustment in fair value and reorganization	'
Predecessor retained earnings	101,677
Adjustment for carve-out allocations	23,109
Predecessor adjusted retained earnings	124,786
Predecessor additional paid-in capital	69,879
Predecessor common stock eliminated in consolidation	-1
Predecessor equity value	194,664
Fair Value Adjustments [Member]	'
Adjustment in fair value and reorganization	'
Fair market value of WMMRC	131,600
Loss contract fair market reserve allowance	$63,064

Fresh_Start_Accounting_Adjustm1

Fresh Start Accounting - Adjustment Reflects Reduction of Equity Value Resulting from Fresh Start Accounting (Detail) (USD $)	Mar. 19, 2012
In Thousands, unless otherwise specified
Fresh-Start Adjustment [Line Items]	'
Fair market value reduction	$8,400
Elimination of Court assigned value related to NOLs	70,000
Total change in fair market value affecting Equity Value	78,400
Court assigned Equity Value recorded as additional paid-in capital	154,998
Total change in fair market value affecting Equity Value	78,400
Additional paid-in capital at March 19, 2012	76,598
WMMRC [Member]	'
Fresh-Start Adjustment [Line Items]	'
Fair market value of WMMRC (Court assigned)	140,000
Fair market value of WMMRC	131,600
Fair market value reduction	$8,400

Fresh_Start_Accounting_Adjustm2

Fresh Start Accounting - Adjustment Reflects Elimination of Adjusted Retained Earnings (Detail) (Predecessor [Member], USD $)	Mar. 19, 2012
In Thousands, unless otherwise specified
Predecessor [Member]	'
Adjustment reflects the elimination of adjusted retained earnings	'
Retained earnings	$101,677
Adjustment for carve-out allocations	23,109
Predecessor adjusted retained earnings	$124,786

Insurance_Activity_Additional_

Insurance Activity - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Mar. 19, 2012	Aug. 31, 2009
Effects of Reinsurance [Line Items]	'	'	'	'
Quoted percentage to share base	'	'	'	50.00%
Balances in the fair market reserve	$46,300,000	$52,200,000	'	'
Loss contract fair market reserve	'	'	63,100,000	'
Decreased value of fair market reserve	$5,900,000	$10,900,000	'	'
WMMRC [Member]	'	'	'	'
Effects of Reinsurance [Line Items]	'	'	'	'
Second loss layer risk percentage of range minimum	'	'	'	5.00%
Second loss layer risk percentage of range maximum	'	'	'	10.00%
First loss layer risk percentage of range minimum	'	'	'	4.00%
First loss layer risk percentage of range maximum	'	'	'	5.00%
Minimum period of reinsurance agreements	'5 years	'	'	'
Maximum period of reinsurance agreements	'10 years	'	'	'

Insurance_Activity_Schedule_of

Insurance Activity - Schedule of Premiums Assumed and Earned (Detail) (USD $)	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011
	Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]
Effects of Reinsurance [Line Items]	'	'	'	'
Premiums assumed	$14,210	$12,115	$6,130	$34,562
Change in unearned premiums	184	-1,169	47	222
Premiums earned	$14,394	$10,946	$6,177	$34,784

Insurance_Activity_Components_

Insurance Activity - Components of Liability for Losses and Loss Adjustment Reserves (Detail) (Successor [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Effects of Reinsurance [Line Items]	'	'	'
Losses and loss adjustment reserves	$44,314	$82,524	$142,119
Case-basis reserves [Member]	'	'	'
Effects of Reinsurance [Line Items]	'	'	'
Losses and loss adjustment reserves	41,159	66,173	'
IBNR reserves [Member]	'	'	'
Effects of Reinsurance [Line Items]	'	'	'
Losses and loss adjustment reserves	713	1,298	'
Premium deficit reserves [Member]	'	'	'
Effects of Reinsurance [Line Items]	'	'	'
Losses and loss adjustment reserves	$2,442	$15,053	'

Insurance_Activity_Summary_of_

Insurance Activity - Summary of Losses and Loss Adjustment Reserve Activity (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Successor [Member]	Successor [Member]	Predecessor [Member]
Effects of Reinsurance [Line Items]	'	'	'
Balance at beginning of period	$82,524	$142,119	$190,036
Incurred-prior periods	-6,159	30,111	47,321
Paid or terminated-prior periods	-32,051	-89,706	-95,238
Total	$44,314	$82,524	$142,119

Investment_Securities_Schedule

Investment Securities - Schedule of Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses and Estimated Fair Values of Fixed-Maturity Securities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	$217,587	$272,895
Total fixed-maturity securities, Gross Unrealized Gains	1,730	4,869
Total fixed-maturity securities, Gross Unrealized Losses	-516	-295
Total fixed-maturity securities, Estimated Fair Value	218,801	277,469
Total fixed-maturity securities held in trust, Amortized Cost	144,909	197,236
Total fixed-maturity securities held in trust, Gross Unrealized Gains	1,498	4,701
Total fixed-maturity securities held in trust, Gross Unrealized Losses	-503	-277
Total fixed-maturity securities held in trust, Estimated Fair Value	145,904	201,660
Obligations of U.S. Government Sponsored Enterprises [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	15,868	97,103
Total fixed-maturity securities, Gross Unrealized Gains	127	1,416
Total fixed-maturity securities, Gross Unrealized Losses	-163	-156
Total fixed-maturity securities, Estimated Fair Value	15,832	98,363
Corporate Debt Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	80,624	91,997
Total fixed-maturity securities, Gross Unrealized Gains	1,450	3,010
Total fixed-maturity securities, Gross Unrealized Losses	-182	-34
Total fixed-maturity securities, Estimated Fair Value	81,892	94,973
Commercial Paper [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	98,929	54,949
Total fixed-maturity securities, Gross Unrealized Gains	4	'
Total fixed-maturity securities, Gross Unrealized Losses	-1	'
Total fixed-maturity securities, Estimated Fair Value	98,932	54,949
Foreign Corporate Debt Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	22,166	18,305
Total fixed-maturity securities, Gross Unrealized Gains	149	379
Total fixed-maturity securities, Gross Unrealized Losses	-170	-18
Total fixed-maturity securities, Estimated Fair Value	22,145	18,666
Commercial Mortgage-Backed Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Total fixed-maturity securities, Amortized Cost	'	10,541
Total fixed-maturity securities, Gross Unrealized Gains	'	64
Total fixed-maturity securities, Gross Unrealized Losses	'	-87
Total fixed-maturity securities, Estimated Fair Value	'	10,518
Trading [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Less total unrestricted fixed-maturity securities, Amortized Cost	7,326	14,246
Less total unrestricted fixed-maturity securities, Gross Unrealized Gains	232	168
Less total unrestricted fixed-maturity securities, Gross Unrealized Losses	-13	-18
Less total unrestricted fixed-maturity securities, Estimated Fair Value	7,545	14,396
Held to Maturity [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Less total unrestricted fixed-maturity securities, Amortized Cost	65,352	61,413
Less total unrestricted fixed-maturity securities, Gross Unrealized Gains	'	'
Less total unrestricted fixed-maturity securities, Gross Unrealized Losses	'	'
Less total unrestricted fixed-maturity securities, Estimated Fair Value	$65,352	$61,413

Investment_Securities_Schedule1

Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Fixed-Maturity Securities by Contractual Maturity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Maturity in:	'	'
Amortized Cost, 2014	$120,536	'
Amortized Cost, 2015-2018	92,692	'
Amortized Cost, 2019-2023	4,359	'
Amortized Cost, Thereafter	'	'
Total fixed-maturity securities, Amortized Cost	217,587	272,895
Estimated Fair Value, 2014	120,604	'
Estimated Fair Value, 2015-2018	93,944	'
Estimated Fair Value, 2019-2023	4,253	'
Estimated Fair Value, Thereafter	'	'
Total fixed-maturity securities, Estimated Fair Value	$218,801	$277,469

Investment_Securities_Summary_

Investment Securities - Summary of Net Investment Income (Loss) (Detail) (USD $)	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011
	Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]
Investment income (loss):	'	'	'	'
Amortization of premium or discount on fixed-maturity securities	($1,837)	($2,309)	($523)	($2,750)
Investment income on fixed-maturity securities	7,232	6,588	2,467	12,920
Interest income on cash and equivalents	161	10	3	49
Realized net gain (loss) from sale of investments	2,747	-1,575	176	1,206
Unrealized (losses) gains on trading securities held at period end	-1,410	-3,492	1,049	-2,828
Net investment income (loss)	$6,893	($778)	$3,172	$8,597

Investment_Securities_Schedule2

Investment Securities - Schedule of Investments in Accordance with Fair Value Measurement (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Class of Security:	'	'
Total fixed maturity securities	$218,801	$277,469
Total investments fair value	263,664	311,097
Obligations of U.S. Government Sponsored Enterprises [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	15,832	98,363
Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	81,892	94,974
Commercial Paper [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	98,932	54,948
Foreign Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	22,145	18,666
Money Market Funds [Member]	'	'
Class of Security:	'	'
Total investments fair value	44,863	33,628
Commercial Mortgage-Backed Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	10,518
Level 1 [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	124,774	90,144
Total investments fair value	169,637	123,772
Level 1 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	6,299	11,362
Level 1 [Member] | Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	11,891	22,833
Level 1 [Member] | Commercial Paper [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	98,932	54,948
Level 1 [Member] | Foreign Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	7,652	1,001
Level 1 [Member] | Money Market Funds [Member]	'	'
Class of Security:	'	'
Total investments fair value	44,863	33,628
Level 1 [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 2 [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	94,027	187,325
Total investments fair value	94,027	187,325
Level 2 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	9,533	87,001
Level 2 [Member] | Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	70,001	72,141
Level 2 [Member] | Commercial Paper [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 2 [Member] | Foreign Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	14,493	17,665
Level 2 [Member] | Money Market Funds [Member]	'	'
Class of Security:	'	'
Total investments fair value	'	'
Level 2 [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	10,518
Level 3 [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Total investments fair value	'	'
Level 3 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 3 [Member] | Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 3 [Member] | Commercial Paper [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 3 [Member] | Foreign Corporate Debt Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'
Level 3 [Member] | Money Market Funds [Member]	'	'
Class of Security:	'	'
Total investments fair value	'	'
Level 3 [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Class of Security:	'	'
Total fixed maturity securities	'	'

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'
Transfers from Level 2 to Level 1	$7,135	$17,746

Investment_Securities_Summary_1

Investment Securities - Summary of Transfers between Level 1 and Level 2 (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Transfers from Level 1 to Level 2	'	'
Transfers from Level 2 to Level 1	7,135	17,746
Corporate Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Transfers from Level 1 to Level 2	'	'
Transfers from Level 2 to Level 1	4,598	16,745
Foreign Corporate Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Transfers from Level 1 to Level 2	'	'
Transfers from Level 2 to Level 1	$2,537	$1,001

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 19, 2012
Income Tax Disclosure [Abstract]	'	'	'	'
Net (loss) income	$338,000	($15,786,000)	($10,873,000)	'
Income tax rate	35.00%	'	'	'
Income tax paid	0	0	0	'
Valuation allowance equal to net deferred federal income tax asset	100.00%	100.00%	100.00%	'
Abandoned stock	'	8,370,000,000	'	8,370,000,000
Change in equity ownership	'	'	'	50.00%
Available and utilizable NOL	5,960,000,000	'	'	'
NOLs expiration date	'2029	'	'	'
Reserves for uncertain federal income tax positions	0	'	'	'
Income tax interest income, expense or penalties	$0	$0	$0	'

Income_Taxes_Schedule_of_Incom

Income Taxes - Schedule of Income Tax Expense (Benefit) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Current federal income tax expense	'	'	'
Provision for doubtful federal income tax receivable	'	'	'
Deferred federal income tax (benefit) expense	'	'	'
Federal income tax benefit	'	'	'

Income_Taxes_Schedule_of_Effec

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) (USD $)	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011
		Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]
Income Taxes And Tax Related [Line Items]	'	'	'	'	'
Income tax at the federal statutory rate of 35%	35.00%	-35.00%	35.00%	-35.00%	-35.00%
Fresh start accounting adjustments	'	'	'	'	($3)
Worthless stock deduction	'	-23,718	13	'	'
Cancelation of debt	'	2,401	'	'	'
As filed adjustments	130	'	-14,505	'	'
Reduction in NOL due to 382 Limitation	'	4,518	'	'	'
Change in valuation allowance	'	$16,834	$14,457	$35	$38
Effective Rate	'	'	'	'	'

Income_Taxes_Components_of_Net

Income Taxes - Components of Net Deferred Tax Asset (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred federal income tax asset:	'	'
Losses and loss adjustments expenses	$143	$2,832
Net operating loss carryforward	2,087,490	2,088,461
Accruals and reserves	16,387	18,276
As filed adjustments	130	'
Capital loss carryforward	52,756	'
Total deferred federal income tax asset	2,156,906	2,109,569
Deferred federal income tax liabilities:	'	'
Net unrealized gains on investments	425	1,946
Total deferred federal income tax liabilities	425	1,946
Less: Valuation allowance	2,156,481	2,107,623
Net deferred federal income tax asset	'	'

Service_Agreements_and_Related1

Service Agreements and Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 19, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Jul. 30, 2013
Related Party Transactions [Abstract]	'	'	'	'	'
Expenses incurred under the agreements	$0	$1,500,000	$1,700,000	$0	'
Description of fee	'	'	'	'	'Fee equal to the product of (x) the ending dollar amount of assets under management during the calendar month in question and (y) .002 divided by 12.
Administrative services agreement fee	'	'	$110,000	'	'
Pro Rata Share of the Common Stock allotment	'	'	10,000,000	'	'
Percentage of Pro Rata Share of the Common Stock Election	'	'	5.00%	'	'
Principal amount of Runoff Notes	'	'	$1	'	'
Percentage of interest in Litigation Proceeds	'	'	50.00%	'	'

Notes_Payable_Additional_Infor

Notes Payable - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]	'	'	'
Collateral Account used for future payments	$0.10	$25	$0
Principal and interest payments	0.1	25	0
13% Senior First Lien Notes [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Note issued	110	'	'
Notes maturity date	19-Mar-30	'	'
Cash interest paid on Notes	9.7	3.7	0
Principal payments	36.3	2.1	0
13% Senior Second Lien Notes [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Note issued	20	'	'
Notes maturity date	19-Mar-30	'	'
PIK Notes [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Note issued	13.9	8.3	0
Runoff Notes [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Outstanding amounts of notes	$105.50	$136.30	$0

Financing_Arrangements_Additio

Financing Arrangements - Additional Information (Detail) (USD $)	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2013	Mar. 19, 2012	Jan. 31, 2014
	Tranche A and Tranche A-1 Term Loan [Member]	Tranche A and Tranche A-1 Term Loan [Member]	Tranche B Term Loan [Member]	Tranche B Term Loan [Member]	7.50% Subordinated Notes [Member]
					Subsequent Events [Member]
Debt Instrument [Line Items]	'	'	'	'	'
Principal available	$25,000,000	$25,000,000	$100,000,000	$100,000,000	$150,000,000
Loans outstanding	$0	$0	$0	$0	'
Interest rate on debt	'	'	'	'	7.50%

Capital_Stock_Additional_Infor

Capital Stock - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended						0 Months Ended		0 Months Ended
	Mar. 19, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Feb. 10, 2014	Mar. 19, 2012	Mar. 19, 2014
					Warrant One [Member]	Warrant Two [Member]	Series A Convertible Preferred Stock [Member]	Subsequent Events [Member]	Reorganization Adjustments [Member]	Scenario, Forecast [Member]
								2012 Plan [Member]
Capital Stock Distribution [Line Items]	'	'	'	'	'	'	'	'	'	'
Common stock, shares authorized	'	500,000,000	'	'	'	'	'	'	500,000,000	'
Preferred stock, shares authorized	'	5,000,000	'	'	'	'	'	'	'	'
Preferred stock, par value	'	$0.00	'	'	'	'	'	'	'	'
Common stock, par value	'	$0.00	'	'	'	'	'	'	$0.00	'
Common stock, shares issued	'	201,842,351	201,156,078	'	'	'	'	'	200,000,000	'
Number convertible preferred stock issued	'	0	0	'	'	'	1,000,000	'	'	'
Purchase price of convertible preferred stock maximum limit	'	'	'	'	'	'	$11,100,000	'	'	'
Warrants to purchase in aggregate, shares	'	61,400,000	'	'	'	'	'	'	'	'
Warrants to purchase common stock	'	'	'	'	30,700,000	30,700,000	'	'	'	'
Warrants to purchase Common stock, exercise price	'	'	'	'	1.32	1.43	'	'	'	'
Amount of restricted share grants	'	700,000	550,000	0	'	'	'	'	'	'
Unamortized value of unvested restricted share grant	'	706,000	407,000	0	'	'	'	'	'	'
Stock-based compensation	'	$401,000	$143,000	$0	'	'	'	'	'	'
Award vesting period	'	'3 years	'	'	'	'	'	'	'	'
Award vesting rights	'	'1/3 per year	'	'	'	'	'	'	'	'
Number of shares vested	385,364	385,364	'	'	'	'	'	'	'	'
Number of shares expected to vest	'	'	'	'	'	'	'	'	'	614,117
Number of shares, forfeited	'	'	'	'	'	'	'	'	'	0
Per share of unvested shares of common stock	'	$0.00	'	'	'	'	'	'	'	'
Unvested shares	'	1,456,987	1,156,078	'	'	'	'	'	'	'
Common stock, shares outstanding	'	201,842,351	201,156,078	'	'	'	'	'	200,000,000	'
Preferred stock, shares outstanding	'	0	0	'	'	'	'	'	'	'
Additional shares of common stock reserved	'	'	'	'	'	'	'	1,000,000	'	'
Common stock issued to directors	'	'	'	'	'	'	'	250,000	'	'

Capital_Stock_Schedule_of_Unam

Capital Stock - Schedule of Unamortized Value of Restricted Stock (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	$706	$407	$0
1st quarter 2014 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	100	'	'
2nd quarter 2014 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	100	'	'
3rd quarter 2014 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	100	'	'
4th quarter 2014 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	100	'	'
1st quarter 2015 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	96	'	'
2nd quarter 2015 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	54	'	'
3rd quarter 2015 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	54	'	'
4th quarter 2015 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	54	'	'
1st quarter 2016 [Member]	'	'	'
Amortization Expense [Line Items]	'	'	'
Total Unamortized value	$48	'	'

Capital_Stock_Summary_of_Compa

Capital Stock - Summary of Company's Restricted Share Award Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'
Number of Restricted Stock Awards Outstanding, Beginning balance	1,156,078	'
Number of Restricted Stock Awards Outstanding, Restricted stock awards granted	686,273	1,156,078
Number of Restricted Stock Awards Outstanding, Restricted stock awards released or forfeited	'	'
Number of Restricted Stock Awards Outstanding, Ending balance	1,456,987	1,156,078
Weighted Average Grant Date Fair Value, Beginning balance	$0.48	'
Weighted Average Grant Date Fair Value, Restricted stock awards granted	$1.02	$0.48
Weighted Average Grant Date Fair Value, Restricted stock awards released or forfeited	'	'
Weighted Average Grant Date Fair Value, Ending balance	$0.68	$0.48
Aggregate Intrinsic Value, Beginning balance	$550	'
Aggregate Intrinsic Value, Restricted stock awards granted	700	550
Aggregate Intrinsic Value, Restricted stock awards released or forfeited	'	'
Aggregate Intrinsic Value, Ending balance	$1,250	$550

Capital_Stock_Summary_of_Compa1

Capital Stock - Summary of Company's Restricted Shares Issued and Subject to Repurchase (Detail)	1 Months Ended	12 Months Ended
	Mar. 19, 2013	Dec. 31, 2013	Dec. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Number of Restricted Stock Awards Outstanding, Beginning balance	'	1,156,078	'
Shares issued subject to vesting during the period	'	686,273	1,156,078
Unvested shares repurchased	'	'	'
Shares vested during the period	-385,364	-385,364	'
Number of Restricted Stock Awards Outstanding, Ending balance	'	1,456,987	1,156,078

Pending_Litigation_Additional_

Pending Litigation - Additional Information (Detail)	Dec. 31, 2013
	Litigation
Loss Contingency [Abstract]	'
Pending legal proceedings or investigations	0

Restriction_on_Distribution_of1

Restriction on Distribution of Net Assets from Subsidiary - Additional Information (Detail) (WMMRC [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
WMMRC [Member]	'	'
Financial Receivables Impaired Or Restructured [Line Items]	'	'
Total net assets	$145.80	$167

Net_Income_Loss_Per_Common_Sha2

Net Income (Loss) Per Common Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) (USD $)

12 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2012

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Mar. 19, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2011

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Numerator for basic and diluted net income (loss) per share:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income (loss)

$338

($15,786)

($10,873)

$472

$7,516

($878)

($2,484)

($3,816)

($9,951)

$5,299

($8,173)

($12,353)

$338

($3,433)

($1,350)

($6,264)

($1,368)

($1,891)

($10,873)

Less: Net income (loss) allocated to participating securities

'

'

'

'

'

'

'

'

'

'

'

-18

2

'

'

'

'

'

'

Net income (loss) attributable to common shareholders

'

'

'

'

'

'

'

'

'

'

'

($12,335)

$336

($3,433)

'

'

'

'

($10,873)

Denominator for basic and diluted net income (loss) per share:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average shares outstanding

'

'

'

'

'

'

'

'

'

'

'

200,298,083

201,419,306

1,000

'

'

'

'

1,000

Weighted-average unvested restricted shares outstanding

'

'

'

'

'

'

'

'

'

'

'

-298,083

-1,115,238

'

'

'

'

'

'

Denominator for basic and diluted net income (loss) per share:

'

'

'

'

'

'

'

'

'

'

'

200,000,000

200,304,068

1,000

'

'

'

'

1,000

Basic and diluted net income (loss) per share attributable to common shareholders

'

'

'

$0

$0.04

($0.01)

($0.01)

($0.02)

($0.05)

$0.03

($0.04)

($0.06)

$0

($3,433)

($1,350)

($6,264)

($1,368)

($1,891)

($10,873)

Quarterly_Financial_Informatio2

Quarterly Financial Information - Summary of Unaudited Interim Results of Operations (Detail) (USD $)	12 Months Ended			0 Months Ended	3 Months Ended							9 Months Ended	12 Months Ended	3 Months Ended					12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Mar. 19, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2011
				Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Predecessor [Member]	Predecessor [Member]	Predecessor [Member]	Predecessor [Member]	Predecessor [Member]	Predecessor [Member]
Quarterly Financial Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	$1,922	$3,318	$3,723	($974)	$4,101	$4,582	$7,336	$7,447	$21,287	$10,168	$9,349	$10,247	$9,103	$13,208	$10,823	$43,381
Net income (loss)	$338	($15,786)	($10,873)	$472	$7,516	($878)	($2,484)	($3,816)	($9,951)	$5,299	($8,173)	($12,353)	$338	($3,433)	($1,350)	($6,264)	($1,368)	($1,891)	($10,873)
Earnings per share - basic and diluted	'	'	'	$0	$0.04	($0.01)	($0.01)	($0.02)	($0.05)	$0.03	($0.04)	($0.06)	$0	($3,433)	($1,350)	($6,264)	($1,368)	($1,891)	($10,873)

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Mar. 19, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Jan. 30, 2014

Jan. 31, 2014

Jan. 30, 2014

Jan. 31, 2014

Jan. 30, 2014

Feb. 10, 2014

Jan. 31, 2014

Warrant One [Member]

Warrant Two [Member]

Series A Convertible Preferred Stock [Member]

2012 Plan [Member]

2012 Plan [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Subsequent Events [Member]

Maximum [Member]

Minimum [Member]

Convertible Preferred Stock [Member]

Maximum [Member]

Maximum [Member]

2012 Plan [Member]

7.50% Subordinated Notes [Member]

Convertible Preferred Stock [Member]

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Announcement of investments

'

'

'

'

'

'

'

'

'

'On January 31, 2014, WMIHC announced that it had entered into (i) the Note Purchase Agreement, (ii) the Investment Agreement and (iii) the Investor Rights Agreement.

'

'

'

'

'

Principal available

'

'

'

'

'

'

'

'

'

'

'

$25,000,000

'

'

$150,000,000

Interest rate on debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.50%

Subordinate note issuance terms and conditions

'

'

'

'

'

'

'

'

'

'Subject to certain terms and conditions, including the conditions that (i) all or substantially all of the proceeds from the issuance of the Subordinated Notes are used by WMIHC to fund the acquisition of the assets of, or equity interests of, or a business line, unit or division of, any entity that has been approved by the board of directors of WMIHC (the bBoardb), (ii) no defaults or events of default shall have occurred under the Note Purchase Agreement and (iii) no violation of certain provisions of the Investor Rights Agreement shall have occurred. KKR Management may refuse to purchase Subordinated Notes from WMIHC in the event that a third party (other than KKR or any of its affiliates) (i) has completed a successful proxy contest against WMIHC or (ii) has publicly initiated or threatened to initiate a proxy contest and, in connection therewith, such third party is granted the right to designate more than one nominee to the Board. Upon such refusal, KKR Management will automatically forfeit a percentage of warrants described below in the Investment Agreement.

'

'

'

'

'

Maximum percentage of borrowing available on tangible assets

'

'

'

'

'

'

'

'

'

25.00%

'

'

'

'

'

Debt instrument maturity description

'

'

'

'

'

'

'

'

'

'Each Subordinated Note will mature on the date that is seven years from the date that the initial Subordinated Note is first issued (the "Initial Issue Date").

'

'

'

'

'

Debt instrument maturity period

'

'

'

'

'

'

'

'

'

'7 years

'

'

'

'

'

Due interest on note

'

'

'

'

'

'

'

'

'

'Interest on the Subordinated Notes is due semi-annually

'

'

'

'

'

Prior maturity date subordinate note redemption percentage

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

Number convertible preferred stock issued

0

0

'

'

'

1,000,000

'

'

'

'

'

'

'

'

'

Purchase price of convertible preferred stock maximum limit

'

'

'

'

'

11,100,000

'

'

'

'

'

'

'

'

'

Warrants to purchase Common stock

61,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants to purchase common stock

'

'

'

30,700,000

30,700,000

'

'

'

'

'

'

'

'

'

'

Warrants to purchase Common stock, exercise price

'

'

'

1.32

1.43

'

'

'

'

'

'

'

'

'

'

Preferred stock liquidation preference

'

'

'

'

'

'The Convertible Preferred Stock has rights substantially similar to those associated with WMIHCbs common stock, with the exception of a liquidation preference, conversion rights and customary anti-dilution protections. The Convertible Preferred Stock has a liquidation preference equal to the greater of (i) $1.00 per $1 million face amount plus declared but unpaid dividends on the underlying common stock of the Company and (ii) the amount that the holder would be entitled to in a relevant transaction had the Convertible Preferred Stock been converted to common stock of WMIHC.

'

'

'

'

'

'

'

'

'

Convertible preferred stock conversion price

$1.10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock liquidation preference per share

$1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock liquidation preference face amount

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrants expiration period

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment holding of preference shareholders

'

'

50.00%

'

'

'

'

'

42.50%

'

'

'

50.00%

'

'

Percentage of rights vest with preferred shareholders to future offering

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

Expiration of right to participating into future offering

'

'

'

'

'

'

'

'

'

'

30-Jan-17

'

'

'

'

Preferred stock participation value

'

'

'

'

'

'

'

'

'

'

'

'

$1,000,000,000

'

'

Preferred stock participation right

'

'

'

'

'

'

'

'

'

'

'Additionally, until January 30, 2017, the Holders will have the right to purchase up to 50% of any future equity rights offerings or other equity issuance by WMIHC on the same terms as the equity issued to other investors in such transactions, in an aggregate amount of such offerings and issuances by WMIHC of up to $1 billion

'

'

'

'

Registration right period

'

'

'

'

'

'

'

'

'180 days

'

'

'

'

'

'

Number of common stock available for future issuance

'

'

'

'

'

'

3,000,000

2,000,000

'

'

'

'

'

'

'

Common stock issued

'

'

'

'

'

'

'

'

'

'

'

'

'

250,000

'

Subsequent_Events_Schedule_of_

Subsequent Events - Schedule of Subordinate Note Redemption (Detail)	12 Months Ended
	Dec. 31, 2013
3rd anniversary of the Initial Issue Date [Member]	'
Debt Instrument, Redemption [Line Items]	'
Subordinated note redemption percentage	103.75%
4th anniversary of the Initial Issue Date [Member]	'
Debt Instrument, Redemption [Line Items]	'
Subordinated note redemption percentage	101.88%
5th anniversary of the Initial Issue Date and thereafter [Member]	'
Debt Instrument, Redemption [Line Items]	'
Subordinated note redemption percentage	100.00%