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Acquisitions - Estimated Purchase Price Allocation of Assets Acquired and Liabilities Assumed (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
May 01, 2014
Assets          
Goodwill $ 575,468us-gaap_Goodwill $ 657,737us-gaap_Goodwill $ 580,378us-gaap_Goodwill $ 470,291us-gaap_Goodwill  
ResCap Acquisition [Member] | Originally Reported [Member]          
Assets          
Servicer and protective advances   186,241wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Servicing rights   242,604wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Goodwill   52,548us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Intangible assets   8,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Premises and equipment   18,102us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Total assets acquired   507,495us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Liabilities          
Payables and accrued liabilities   20,270us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Total liabilities assumed   20,270us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Fair value of net assets acquired   487,225us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
ResCap Acquisition [Member] | Measurement Period Adjustment [Member]          
Assets          
Servicer and protective advances   (11,168)wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Servicing rights           
Goodwill   (4,900)us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Intangible assets           
Premises and equipment           
Total assets acquired   (16,068)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Liabilities          
Payables and accrued liabilities   (8,031)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Total liabilities assumed   (8,031)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Fair value of net assets acquired   (8,037)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
ResCap Acquisition [Member] | Adjusted [Member]          
Assets          
Servicer and protective advances   175,073wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Servicing rights   242,604wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Goodwill   47,648us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Intangible assets   8,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Premises and equipment   18,102us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Total assets acquired   491,427us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Liabilities          
Payables and accrued liabilities   12,239us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Total liabilities assumed   12,239us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Fair value of net assets acquired   479,188us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_ResCapNetAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Security One Lending [Member]          
Assets          
Cash   6,725us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Restricted cash   822wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Residential loans   98,441us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Receivables   1,179us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Servicing rights   378wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Goodwill   8,809us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Intangible assets   11,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Premises and equipment   530us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Other assets   500us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Total assets acquired   128,384us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Liabilities          
Payables and accrued liabilities   8,252us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Debt   89,434us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Deferred tax liability, net   4,598us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Total liabilities assumed   102,284us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Fair value of net assets acquired   26,100us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_SecurityOneLendingMember
     
Reverse Mortgage Solutions, Inc. [Member] | Originally Reported [Member]          
Assets          
Cash   19,683us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Restricted cash   1,401wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Residential loans   5,331,989us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Receivables   11,832us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Servicer and protective advances   17,615wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Servicing rights   15,916wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Goodwill   101,199us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Intangible assets   20,800us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Premises and equipment   15,633us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Deferred tax asset, net   19,052us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Other assets   13,245us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Total assets acquired   5,568,365us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Liabilities          
Payables and accrued liabilities   29,357us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Debt   148,431us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
HMBS related obligations   5,254,231wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedHomeEquityConversionMortgageBackedSecurityRelatedObligation
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Total liabilities assumed   5,432,019us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Fair value of net assets acquired   136,346us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
     
Reverse Mortgage Solutions, Inc. [Member] | Measurement Period Adjustment [Member]          
Assets          
Cash           
Restricted cash           
Residential loans           
Receivables           
Servicer and protective advances           
Servicing rights           
Goodwill   28,800us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Intangible assets           
Premises and equipment           
Deferred tax asset, net   17,159us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Other assets           
Total assets acquired   45,959us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Liabilities          
Payables and accrued liabilities   45,959us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Debt           
HMBS related obligations           
Total liabilities assumed   45,959us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember
     
Fair value of net assets acquired           
Reverse Mortgage Solutions, Inc. [Member] | Adjusted [Member]          
Assets          
Cash   19,683us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Restricted cash   1,401wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Residential loans   5,331,989us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Receivables   11,832us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Servicer and protective advances   17,615wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Servicing rights   15,916wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Goodwill   129,999us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Intangible assets   20,800us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Premises and equipment   15,633us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Deferred tax asset, net   36,211us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Other assets   13,245us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Total assets acquired   5,614,324us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Liabilities          
Payables and accrued liabilities   75,316us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Debt   148,431us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
HMBS related obligations   5,254,231wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedHomeEquityConversionMortgageBackedSecurityRelatedObligation
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Total liabilities assumed   5,477,978us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Fair value of net assets acquired   136,346us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_ReverseMortgageSolutionsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioActualMember
     
Everbank Financial Corp [Member]          
Assets          
Servicer and protective advances         163,160wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicerAndProtectiveAdvances
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Servicing rights         58,680wac_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingRights
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Premises and equipment         1,866us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Total assets acquired         223,706us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Liabilities          
Payables and accrued liabilities         924us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Total liabilities assumed         924us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember
Fair value of net assets acquired         $ 222,782us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= wac_EverbankFinancialCorpMember