XML 26 R30.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Assets and Liabilities at Fair Value (Parenthetical) (Detail) (USD $) | 6 Months Ended |  |  |  |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 19, 2012 | Sep. 30, 2012 | Mar. 19, 2012 Reorganization Adjustments [Member] | Sep. 30, 2012 Successor [Member] | Mar. 19, 2012 Successor [Member] | Mar. 19, 2012 Predecessor [Member] | Mar. 19, 2012 Predecessor [Member] | Dec. 31, 2011 Predecessor [Member] | Mar. 19, 2012 Fair Value Adjustments [Member] | Mar. 19, 2012 WMMRC [Member] | Mar. 19, 2012 Runoff Notes [Member]
Fresh-Start Adjustment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value |  | $ 0.00001 | $ 0.00001 | [1] | $ 0.00001 | $ 0.00001 | $ 1 | $ 1 | $ 1.00000 | $ 1 | [2] |  |
Common stock, shares authorized |  | 500,000,000 | 500,000,000 | [1] | 500,000,000 | 500,000,000 |  |  |  |  |  |  |
Common stock, shares outstanding |  | 200,000,000 | 200,000,000 | [1] | 200,000,000 | 200,000,000 | 1,000 | 1,000 | 1,000 | 1,000 | [2] |  |
Common stock, shares issued |  | 200,000,000 | 200,000,000 | [1] | 200,000,000 | 200,000,000 | 1,000 | 1,000 | 1,000 | 1,000 | [2] |  |
Common stock, shares issued |  | 200,000,000 | 200,000,000 | [1] | 200,000,000 | 200,000,000 | 1,000 | 1,000 | 1,000 | 1,000 | [2] |  |
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
Common stock, par value |  | $ 0.00001 | $ 0.00001 | [1] | $ 0.00001 | $ 0.00001 | $ 1 | $ 1 | $ 1.00000 | $ 1 | [2] |  |
Common stock, shares outstanding |  | 200,000,000 | 200,000,000 | [1] | 200,000,000 | 200,000,000 | 1,000 | 1,000 | 1,000 | 1,000 | [2] |  |
Common stock, shares issued |  | 200,000,000 | 200,000,000 | [1] | 200,000,000 | 200,000,000 | 1,000 | 1,000 | 1,000 | 1,000 | [2] |  |
Net Assets or Equity Value |  |  |  |  |  |  |  |  |  |  |  | 171,600,000 |
Loss contract fair market value reserve | 63,100,000 | 63,100,000 |  |  | 52,368,000 | 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% |  |  |  |  |  |  |  |  |  |  |  |
[1] | 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.
[2] | 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").

X
- Definition Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_CommonStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FreshStartAdjustmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Including the current and noncurrent portions, the carrying value as of the balance sheet date of notes payable to banks, excluding mortgage notes, initially due beyond one year or beyond the operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
Name: | us-gaap_NotesPayableToBank
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The increase (decrease) in stockholders' equity during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_StockholdersEquityPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash from (used in) reorganization activities. + References No definition available. + Details
Name: | wmih_CashFromUsedInReorganizationActivities
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Court's valuation. + References No definition available. + Details
Name: | wmih_CourtValuation
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Elimination of net operating loss value. + References No definition available. + Details
Name: | wmih_EliminationOfNetOperatingLossValue
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair market value reduction. + References No definition available. + Details
Name: | wmih_FairMarketValueReduction
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loss contract fair market value reserve. + References No definition available. + Details
Name: | wmih_LossContractFairMarketValueReserve
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Net assets or equity value. + References No definition available. + Details
Name: | wmih_NetAssetsOrEquityValue
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of valuation allowance applicable to net operating loss. + References No definition available. + Details
Name: | wmih_PercentageOfValuationAllowanceApplicableToNetOperatingLoss
Namespace Prefix: | wmih_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant