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FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 8) | 12 Months Ended
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Dec. 31, 2014 item
Valuation Methodologies |
Maximum Term of Maturity for Securities Purchased under Resale Agreements to be Included in Cash and Cash Equivalents | 90 days
Term of Maturity that Securities Purchased under Resale Agreements Must Exceed to be Included in Certain Fair Value Calculations | 90 days
Percentage of total available-for-sale securities represented by Level 3 available-for-sale securities, maximum | 1.00%ewbc_PercentageOfTotalAvailableForSaleSecuritiesRepresentedByLevel3AvailableForSaleSecurities
Minimum number of quoted market prices traditionally used in determining fair value of level 3 available-for-sale securities | 2 ewbc_NumberOfQuotedMarketPricesTraditionallyUsedInDeterminingFairValueOfPrivateLabelMortgageBackedSecuritiesAndPooledTrustPreferredSecurities
Foreign exchange options |
Valuation Methodologies |
Term of contracts | 5 years

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- Definition The maximum term of original maturity for which securities purchased under resale agreements are included in cash and cash equivalents on the Consolidated Balance Sheet. + References No definition available. + Details
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- Definition The minimum number of quoted market prices obtained from independent external brokers that have traditionally been used in determining the fair values of level 3 available-for-sale securities. + References No definition available. + Details
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- Definition The maximum percentage of total available-for-sale securities represented by the Company's Level 3 available-for-sale securities. + References No definition available. + Details
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- Definition The term of the contract (in years) associated with the derivative instrument. + References No definition available. + Details
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- Definition The term of original maturity that securities purchased under resale agreements must exceed to be included in certain fair value calculations. The fair value of securities purchased under resale agreements exceeding this term of original maturity is estimated by discounting the cash flows based on expected maturities or re-pricing dates utilizing estimated market discount rates. + References No definition available. + Details
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- Details
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- Details
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