XML 16 R33.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Fixed-Maturity Securities by Contractual Maturity (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Maturity in: |  |
Amortized Cost, 2014 | $ 70,301 |
Amortized Cost, 2015-2019 | 75,893 |
Total fixed-maturity securities, Amortized Cost | 146,194 | 217,587
Estimated Fair Value, 2014 | 70,307 |
Estimated Fair Value, 2015-2019 | 76,733 |
Total fixed-maturity securities, Estimated Fair Value | $ 147,040 | $ 218,801

X
- Definition Fixed maturity securities amortized cost. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesAmortizedCost
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed maturity securities debt maturities after through five years amortized cost. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed maturity securities debt maturities after one through five years fair value. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed maturity Securities debt maturities within one year amortized cost. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesDebtMaturitiesWithinOneYearAmortizedCost
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed maturity securities debt maturities within one year fair value. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed maturity securities estimated fair value. + References No definition available. + Details
Name: | wmih_FixedMaturitySecuritiesEstimatedFairValue
Namespace Prefix: | wmih_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | wmih_ScheduleOfAmortizedCostAndEstimatedFairValueOfFixedMaturitySecuritiesByContractualMaturityAbstract
Namespace Prefix: | wmih_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration