XML 91 R100.htm IDEA: XBRL DOCUMENT v2.4.1.9
Mortgage Banking Operations (Loans Serviced for Others) (Details) (USD $)
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Credit Derivatives [Line Items]      
Unpaid principal balance of mortgage servicing rights sold   $ 2,960,000,000hmst_Unpaidprincipalbalanceofmortgageservicingrightssold  
Loans sold with credit provisions [Abstract]      
Loans serviced for others 12,051,202,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding   12,611,723,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
Multifamily Residential [Member] | Loss Sharing Relationship [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 752,600,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_MultifamilyResidentialMember
/ us-gaap_GuaranteeObligationsByNatureAxis
= hmst_LossSharingRelationshipMember		   720,400,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_MultifamilyResidentialMember
/ us-gaap_GuaranteeObligationsByNatureAxis
= hmst_LossSharingRelationshipMember
Single Family Residential [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 11,216,208,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember		   11,795,621,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember
Single Family Residential [Member] | Agency Securities [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 10,630,864,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= us-gaap_AgencySecuritiesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember		 [1]   11,467,853,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= us-gaap_AgencySecuritiesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember
Single Family Residential [Member] | Single Family Residential Mortgage Loans, Excluding U.S. Government Agency Mortgage Backed Securities [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 585,344,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_SingleFamilyResidentialMortgageLoansExcludingUSGovernmentAgencyMortgageBackedSecuritiesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember		   327,768,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_SingleFamilyResidentialMortgageLoansExcludingUSGovernmentAgencyMortgageBackedSecuritiesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hmst_SingleFamilyResidentialMember
Commercial Portfolio Segment [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 834,994,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		   816,102,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial Portfolio Segment [Member] | Multifamily Residential [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others 752,640,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_MultifamilyResidentialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		   720,429,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_MultifamilyResidentialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial Portfolio Segment [Member] | Commercial Mortgages, Excluding Multfamily [Member]      
Loans sold with credit provisions [Abstract]      
Loans serviced for others $ 82,354,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_CommercialMortgagesExcludingMultfamilyMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		   $ 95,673,000us-gaap_ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding
/ us-gaap_FinancialInstrumentAxis
= hmst_CommercialMortgagesExcludingMultfamilyMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
[1] (1)On June 30, 2014, the Company sold the rights to service $2.96 billion in total unpaid principal balance of single family mortgage loans serviced for Fannie Mae.