XML 127 R92.htm IDEA: XBRL DOCUMENT v2.4.1.9
NON-COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 8) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
contract
Dec. 31, 2013
contract
Dec. 31, 2012
contract
Disclosures on loans modified as TDRs that subsequently defaulted      
Period beyond which a TDR generally becomes delinquent 90 days    
CRE | Income producing | Non-covered loans      
Disclosures on loans modified as TDRs that subsequently defaulted      
Number of contracts modified as TDRs that subsequently defaulted     1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
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= ewbc_IncomeProducingFinancingReceivableMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Balance of loans modified as TDRs that subsequently defaulted     $ 271us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
C&I | Commercial business | Non-covered loans      
Disclosures on loans modified as TDRs that subsequently defaulted      
Number of contracts modified as TDRs that subsequently defaulted 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
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1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
2us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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Balance of loans modified as TDRs that subsequently defaulted 957us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
= us-gaap_CommercialPortfolioSegmentMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_CommercialBusinessMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
570us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_CommercialBusinessMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
33us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
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= ewbc_CommercialBusinessMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Residential | Single-family | Non-covered loans      
Disclosures on loans modified as TDRs that subsequently defaulted      
Number of contracts modified as TDRs that subsequently defaulted     2us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_ResidentialSingleFamilyMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Balance of loans modified as TDRs that subsequently defaulted     2,830us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_ResidentialSingleFamilyMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Residential | Multifamily | Non-covered loans      
Disclosures on loans modified as TDRs that subsequently defaulted      
Number of contracts modified as TDRs that subsequently defaulted     1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_ResidentialMultifamilyMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Balance of loans modified as TDRs that subsequently defaulted     378us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= ewbc_ResidentialMultifamilyMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
Consumer | Other Consumer | Non-covered loans      
Disclosures on loans modified as TDRs that subsequently defaulted      
Number of contracts modified as TDRs that subsequently defaulted   1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ ewbc_FinancingReceivableInformationByPortfolioSegmentsAxis
= us-gaap_ConsumerPortfolioSegmentMember
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= us-gaap_ConsumerOtherFinancingReceivableMember
/ ewbc_ReceivableByIndemnificationStatusAxis
= ewbc_NonCoveredLoansMember
 
Balance of loans modified as TDRs that subsequently defaulted   $ 639us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
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