$EWBC
EAST WEST BANCORP INC Stock $ewbc

$ewbc Overview Financials Valuation SEC Filings Company Website

2014 Q3 Form 10-Q Financial Statement

#000110465914078429 Filed on November 07, 2014

Income Statement

Concept	2014 Q3	2013 Q4	2013 Q3
Revenue	$285.9M	$293.2M	$281.7M
YoY Change	1.51%	6.03%	10.84%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$49.08M	$31.30M	$22.16M
YoY Change	121.5%	33.19%	374.58%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$28.97M	$28.20M	$27.46M
YoY Change	5.53%	-10.71%	-14.88%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$85.30M	$98.56M	$108.9M
YoY Change	-21.68%	-8.91%	3.52%
Income Tax	-$6.601M	$22.78M	$35.75M
% Of Pretax Income	-7.74%	23.11%	32.83%
Net Earnings	$91.90M	$75.78M	$73.16M
YoY Change	25.62%	5.4%	2.88%
Net Earnings / Revenue	32.14%	25.85%	25.97%
Basic Earnings Per Share	$0.64	$0.55	$0.53
Diluted Earnings Per Share	$0.64	$0.55	$0.53
COMMON SHARES
Basic Shares Outstanding	143.2M shares	137.8M shares	137.0M shares
Diluted Shares Outstanding	143.8M shares		137.5M shares

Balance Sheet

Concept	2014 Q3	2013 Q4	2013 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.116B	$895.8M	$1.322B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$182.0M	$177.7M	$185.1M
YoY Change	-1.69%	65.29%	61.51%
Goodwill	$458.5M	$337.4M	$337.4M
YoY Change	35.87%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$180.0M	$129.6M	$172.0M
YoY Change	4.65%	-9.04%	-3.91%
Other Assets	$257.0M	$256.0M	$173.0M
YoY Change	48.55%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$28.48B	$24.73B	$24.50B
YoY Change	16.27%	9.74%	12.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$459.0M	$383.0M	$305.0M
YoY Change	50.49%	9.12%	0.66%
Deferred Revenue
YoY Change
Short-Term Debt	$805.0M	$995.0M	$995.0M
YoY Change	-19.1%	0.0%	0.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$459.0M	$383.0M	$305.0M
YoY Change	50.49%	9.12%	0.66%
LONG-TERM LIABILITIES
Long-Term Debt	$231.0M	$227.0M	$187.0M
YoY Change	23.53%	44.59%	36.5%
Other Long-Term Liabilities	$64.00M	$33.00M
YoY Change
Total Long-Term Liabilities	$295.0M	$260.0M	$187.0M
YoY Change	57.75%	65.61%	36.5%
TOTAL LIABILITIES
Total Short-Term Liabilities	$459.0M	$383.0M	$305.0M
Total Long-Term Liabilities	$295.0M	$260.0M	$187.0M
Total Liabilities	$25.71B	$22.37B	$22.19B
YoY Change	15.89%	10.97%	13.81%
SHAREHOLDERS EQUITY
Retained Earnings	$1.532B	$1.360B	$1.305B
YoY Change	17.35%	18.08%	19.11%
Common Stock	$163.0K	$163.0K
YoY Change		3.82%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$427.3M	$537.3M	$532.4M
YoY Change	-19.73%	66.7%	65.61%
Treasury Stock Shares	20.11M shares	25.47M shares	25.32M shares
Shareholders Equity	$2.771B	$2.366B	$2.312B
YoY Change
Total Liabilities & Shareholders Equity	$28.48B	$24.73B	$24.50B
YoY Change	16.26%	9.74%	12.31%

Cashflow Statement

Concept	2014 Q3	2013 Q4	2013 Q3
OPERATING ACTIVITIES
Net Income	$91.90M	$75.78M	$73.16M
YoY Change	25.62%	5.4%	2.88%
Depreciation, Depletion And Amortization	$49.08M	$31.30M	$22.16M
YoY Change	121.5%	33.19%	374.58%
Cash From Operating Activities	$195.7M	$134.5M	$133.6M
YoY Change	46.48%	44.16%	-20.67%
INVESTING ACTIVITIES
Capital Expenditures		-$700.0K	-$77.10M
YoY Change		-84.44%	3112.5%
Acquisitions
YoY Change
Other Investing Activities	-$1.232B	-$631.5M	-$891.7M
YoY Change	38.21%	-46.3%	-3.45%
Cash From Investing Activities	-$1.232B	-$632.2M	-$968.8M
YoY Change	27.21%	-46.45%	4.62%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	906.3M	71.20M	1.107B
YoY Change	-18.15%	-88.01%	665.24%
NET CHANGE
Cash From Operating Activities	195.7M	134.5M	133.6M
Cash From Investing Activities	-1.232B	-632.2M	-968.8M
Cash From Financing Activities	906.3M	71.20M	1.107B
Net Change In Cash	-130.4M	-426.5M	272.1M
YoY Change	-147.92%	-13.52%	-144.4%
FREE CASH FLOW
Cash From Operating Activities	$195.7M	$134.5M	$133.6M
Capital Expenditures		-$700.0K	-$77.10M
Free Cash Flow		$135.2M	$210.7M
YoY Change		38.24%	23.36%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2013Q4	ewbc	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	64896000	USD
CY2014Q3	ewbc	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	24086000	USD
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	ewbc	Net Income Loss Available To Common Stockholders Basic After Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterParticipatingSecurities	214474000	USD
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CY2013Q3	ewbc	Amount Of Dilutive Securities Restrictive Stock Awards AmountOfDilutiveSecuritiesRestrictiveStockAwards	54000	USD
	ewbc	Amount Of Dilutive Securities Restrictive Stock Awards AmountOfDilutiveSecuritiesRestrictiveStockAwards	197000	USD
	ewbc	Amount Of Dilutive Securities Restrictive Stock Awards AmountOfDilutiveSecuritiesRestrictiveStockAwards	124000	USD
	ewbc	Amount Of Dilutive Securities Convertible Preferred Stock AmountOfDilutiveSecuritiesConvertiblePreferredStock	3428000	USD
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	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	142791000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	137404000	shares
CY2014Q3	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	75000	shares
CY2013Q3	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	71000	shares
	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions	76000	shares
CY2013Q3	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Restricted Stock IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock	360000	shares
	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Restricted Stock IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock	365000	shares
	ewbc	Incremental Common Shares Attributable To Share Based Payment Arrangements Restricted Stock IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock	276000	shares
CY2014Q3	us-gaap	Short Term Investments ShortTermInvestments	336419000	USD
CY2014Q3	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	1475000000	USD
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	2453000	shares
CY2014Q3	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	144000	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	145000	shares
CY2014Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	143810000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137467000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	143377000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140199000	shares
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.62
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.74
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.62
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4669000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-21678000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-25178000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-30459000	USD
CY2014Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2535000	USD
CY2014Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	249268000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	1564000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-2871000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	31860000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-22883000	USD
CY2014Q3	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	239649000	USD
CY2014Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1457000	USD
CY2014Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	19097117000	USD
CY2013Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	629000	USD
CY2014Q3	us-gaap	Loans And Leases Receivable Net Reported Amount Covered LoansAndLeasesReceivableNetReportedAmountCovered	1636399000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	3829000	USD
CY2014Q3	ewbc	Other Real Estate Owned Net OtherRealEstateOwnedNet	33337000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	6964000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	107000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	28031000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-29847000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2867000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4959000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	55138000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	48330000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-39491000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2512000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1084000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	6601000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	12006000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	355000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-6043000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	48537000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-51497000	USD
CY2014Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Before Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossBeforeTax	-171000	USD
CY2013Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Before Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossBeforeTax	9000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Before Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossBeforeTax	-207000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Before Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossBeforeTax	38000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	184000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-6034000	USD
	ewbc	Interest Spread On Funds Used InterestSpreadOnFundsUsed	662190000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-149000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-51459000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1204000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	2083000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-23158000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	16586000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1055000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-455000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-2772000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-5042000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	2538000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-20386000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	21628000	USD
CY2014Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossTax	72000	USD
CY2013Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossTax	-4000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossTax	87000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossTax	-16000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-77000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	2534000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-20299000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	21612000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1663000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2876000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	31980000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-22905000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1457000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	629000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	3829000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6964000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	206000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-3505000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	28151000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-29869000	USD
CY2014Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	-99000	USD
	ewbc	Increase Decrease Amortization Of Investments In Affordable Housing Partnerships IncreaseDecreaseAmortizationOfInvestmentsInAffordableHousingPartnerships	41800000	USD
CY2013Q3	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	5000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	-120000	USD
	ewbc	Other Asset Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherAssetInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	22000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	107000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	28031000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-29847000	USD
CY2014Q3	ewbc	Interest Spread On Funds Used InterestSpreadOnFundsUsed	210136000	USD
CY2013Q3	ewbc	Interest Spread On Funds Used InterestSpreadOnFundsUsed	213844000	USD
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
	ewbc	Interest Spread On Funds Used InterestSpreadOnFundsUsed	623208000	USD
CY2014Q3	us-gaap	Interest Expense InterestExpense	28974000	USD
CY2013Q3	us-gaap	Interest Expense InterestExpense	27456000	USD
	us-gaap	Interest Expense InterestExpense	85173000	USD
	us-gaap	Interest Expense InterestExpense	84297000	USD
CY2014Q3	ewbc	Credit On Funds Provided CreditOnFundsProvided	75812000	USD
CY2013Q3	ewbc	Credit On Funds Provided CreditOnFundsProvided	67862000	USD
	ewbc	Credit On Funds Provided CreditOnFundsProvided	204373000	USD
	ewbc	Credit On Funds Provided CreditOnFundsProvided	152274000	USD
CY2014Q3	ewbc	Interest Spread On Funds Provided InterestSpreadOnFundsProvided	46838000	USD
CY2013Q3	ewbc	Interest Spread On Funds Provided InterestSpreadOnFundsProvided	40406000	USD
	ewbc	Interest Spread On Funds Provided InterestSpreadOnFundsProvided	119200000	USD
	ewbc	Interest Spread On Funds Provided InterestSpreadOnFundsProvided	67977000	USD
CY2014Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	256974000	USD
CY2013Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	254250000	USD
	ewbc	Provision For Loan Lease And Other Losses Noncovered ProvisionForLoanLeaseAndOtherLossesNoncovered	12050000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	781390000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	691185000	USD
CY2014Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	15225000	USD
CY2013Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3571000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	30158000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	16898000	USD
CY2014Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49080000	USD
CY2013Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22158000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	84934000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61067000	USD
CY2013Q3	us-gaap	Goodwill Goodwill	337438000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	75112000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	108906000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	302408000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	327286000	USD
CY2014Q3	us-gaap	Assets Assets	28481130000	USD
CY2013Q3	us-gaap	Assets Assets	24498835000	USD
	dei	Entity Registrant Name EntityRegistrantName	EAST WEST BANCORP INC
	dei	Entity Central Index Key EntityCentralIndexKey	0001069157
	dei	Document Type DocumentType	10-Q
	dei	Document Period End Date DocumentPeriodEndDate	2014-09-30
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
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	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
CY2014Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	895820000	USD
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2013Q4	us-gaap	Short Term Investments ShortTermInvestments	257473000	USD
CY2014Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2013Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	1300000000	USD
CY2013Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	204970000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	15412715000	USD
CY2014Q3	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	20733516000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	17600613000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	177710000	USD
CY2013Q3	ewbc	Investment In Federal Home Loan Bank Stock InvestmentInFederalHomeLoanBankStock	1395000	USD
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	163098008	shares
CY2013Q4	ewbc	Other Real Estate Owned Net OtherRealEstateOwnedNet	18900000	USD
CY2014Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	163514929	shares
CY2013Q4	ewbc	Other Real Estate Owned Covered Net OtherRealEstateOwnedCoveredNet	21373000	USD
CY2014Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	40770000	USD
CY2013Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	40273000	USD
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	137630896	shares
CY2013Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	62330000	USD
CY2013Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	259105000	USD
CY2013Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	48333000	USD
CY2013Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	11039000	USD
CY2013Q4	ewbc	Investment In Affordable Housing Partnerships InvestmentInAffordableHousingPartnerships	164776000	USD
CY2013Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	5168000	USD
CY2013Q4	us-gaap	Interest Receivable InterestReceivable	116314000	USD
CY2013Q3	ewbc	Investment In Federal Reserve Bank Stock InvestmentInFederalReserveBankStock	723000	USD
CY2013Q4	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	21236000	USD
CY2013Q3	ewbc	Short Term Investments As Presented In Statements Of Income ShortTermInvestmentsAsPresentedInStatementsOfIncome	4276000	USD
CY2013Q4	ewbc	Finite Lived Core Deposits Net FiniteLivedCoreDepositsNet	46920000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	710554000	USD
CY2013Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	112650000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	30843000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	534707000	USD
CY2013Q4	us-gaap	Assets Assets	24730068000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	16132000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	5821899000	USD
	ewbc	Investment In Federal Home Loan Bank Stock InvestmentInFederalHomeLoanBankStock	2945000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	14591019000	USD
CY2014Q3	us-gaap	Deposits Deposits	23812264000	USD
CY2013Q4	us-gaap	Deposits Deposits	20412918000	USD
	ewbc	Investment In Federal Reserve Bank Stock InvestmentInFederalReserveBankStock	2164000	USD
CY2013Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	315092000	USD
	ewbc	Short Term Investments As Presented In Statements Of Income ShortTermInvestmentsAsPresentedInStatementsOfIncome	12844000	USD
CY2013Q4	us-gaap	Bank Acceptances Executed And Outstanding BankAcceptancesExecutedAndOutstanding	21236000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	226868000	USD
CY2013Q4	ewbc	Accrued Interest Payable Accrued Expenses And Other Liabilities AccruedInterestPayableAccruedExpensesAndOtherLiabilities	394729000	USD
CY2014Q3	us-gaap	Liabilities Liabilities	25713037000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	22365843000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	15099000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1571670000	USD
CY2013Q3	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	1049000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1360130000	USD
CY2013Q3	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	10323000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	537279000	USD
	us-gaap	Stock Issued During Period Shares Share Based Compensation Gross StockIssuedDuringPeriodSharesShareBasedCompensationGross	398012	shares
	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	19998	shares
CY2014Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	28481130000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	24730068000	USD
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	58929	shares
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	17337	shares
CY2013Q3	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	985000	USD
CY2013Q3	ewbc	Provision For Loan Lease And Other Losses Covered ProvisionForLoanLeaseAndOtherLossesCovered	-964000	USD
CY2013Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	250679000	USD
CY2013Q3	ewbc	Provision For Loan Lease And Other Losses Noncovered ProvisionForLoanLeaseAndOtherLossesNoncovered	4535000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	47691000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	3135000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	31069000	USD
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	2402000	USD
	ewbc	Provision For Loan Lease And Other Losses Covered ProvisionForLoanLeaseAndOtherLossesCovered	4848000	USD
CY2013Q3	us-gaap	Occupancy Net OccupancyNet	14697000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	674287000	USD
CY2013Q3	ewbc	Changes In Fdic Indemnification Asset Receivable Or Payable ChangesInFDICIndemnificationAssetReceivableOrPayable	-74456000	USD
CY2013Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	41482000	USD
	ewbc	Changes In Fdic Indemnification Asset Receivable Or Payable ChangesInFDICIndemnificationAssetReceivableOrPayable	-154260000	USD
CY2013Q3	ewbc	Branch Fees BranchFees	8123000	USD
CY2014Q3	us-gaap	Noninterest Expense NoninterestExpense	176979000	USD
	ewbc	Branch Fees BranchFees	23896000	USD
CY2013Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	1084000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	129239000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	12006000	USD
CY2014Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	836000	USD
CY2014Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	7726000	USD
CY2013Q3	ewbc	Fees And Commissions Letters Of Credit FeesAndCommissionsLettersOfCredit	5615000	USD
CY2014Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	241749000	USD
	ewbc	Fees And Commissions Letters Of Credit FeesAndCommissionsLettersOfCredit	16103000	USD
CY2013Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.328	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.175	pure
CY2013Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2940000	USD
	us-gaap	Occupancy Net OccupancyNet	42211000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	8925000	USD
CY2013Q3	us-gaap	Servicing Fees Net ServicingFeesNet	2125000	USD
CY2013Q3	ewbc	Amortization Of Investments In Affordable Housing Partnerships AmortizationOfInvestmentsInAffordableHousingPartnerships	4693000	USD
	us-gaap	Servicing Fees Net ServicingFeesNet	6811000	USD
CY2013Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	952000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2820000	USD
CY2013Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3945000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3685000	USD
CY2013Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2216000	USD
	ewbc	Amortization Of Investments In Affordable Housing Partnerships AmortizationOfInvestmentsInAffordableHousingPartnerships	14040000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9306000	USD
CY2013Q3	us-gaap	Noninterest Income NoninterestIncome	-41421000	USD
	us-gaap	Noninterest Income NoninterestIncome	-19519000	USD
	us-gaap	Noninterest Income NoninterestIncome	-55874000	USD
CY2013Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2347000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	751232000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7131000	USD
CY2013Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	4191000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	11848000	USD
CY2013Q3	ewbc	Loan Processing Income Expense LoanProcessingIncomeExpense	2752000	USD
	ewbc	Loan Processing Income Expense LoanProcessingIncomeExpense	9909000	USD
CY2013Q3	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	157000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	-2015000	USD
CY2013Q3	us-gaap	Legal Fees LegalFees	9001000	USD
	us-gaap	Legal Fees LegalFees	18912000	USD
CY2013Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2159000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	6796000	USD
CY2014Q3	ewbc	Dividend And Other Investment Income DividendAndOtherInvestmentIncome	4113000	USD
CY2013Q3	ewbc	Dividend And Other Investment Income DividendAndOtherInvestmentIncome	99000	USD
CY2013Q3	us-gaap	Professional Fees ProfessionalFees	1264000	USD
	ewbc	Dividend And Other Investment Income DividendAndOtherInvestmentIncome	5339000	USD
	us-gaap	Professional Fees ProfessionalFees	2721000	USD
CY2013Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17609000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	50335000	USD
CY2013Q3	us-gaap	Noninterest Expense NoninterestExpense	100352000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.330	pure
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	108023000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	215835000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	249485000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	88756000	USD
	us-gaap	Noninterest Expense NoninterestExpense	429305000	USD
	us-gaap	Noninterest Expense NoninterestExpense	291127000	USD
CY2013Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35749000	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2428000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	73157000	USD
CY2013Q3	ewbc	Other Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	5000	USD
	ewbc	Other Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	22000	USD
CY2014Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.54
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2014Q3	us-gaap	Noninterest Income NoninterestIncome	10342000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	9049000	USD
CY2013Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	69657000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	277516000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	189416000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	69907000	USD
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	us-gaap	Share Based Compensation ShareBasedCompensation	9263000	USD
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	2671000	USD
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	2102000	USD
	ewbc	Net Gain On Sales Of Investment Securities Loans And Other Assets NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets	23354000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	99258000	USD
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	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-47735000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-2190000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	72077000	USD
CY2014Q3	ewbc	Other Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	-99000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	291340000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1549830000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-73286000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	-150000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1113667000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	577811000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	87443000	USD
	ewbc	Investments In Affordable Housing Partnerships And Other Investments InvestmentsInAffordableHousingPartnershipsAndOtherInvestments	25860000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	386108000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	184679000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	243244000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	47892000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	376593000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-31849000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	49111000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1608000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2102596000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2049786000	USD
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	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	65625000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	1810533000	USD
	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-723000	USD
	us-gaap	Interest Paid InterestPaid	84643000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	118408000	USD
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	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	33685000	USD
	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	219933000	USD
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	us-gaap	Mortgage Loan Related To Property Sales1 MortgageLoanRelatedToPropertySales1	139000	USD
	us-gaap	Stock Issued1 StockIssued1	190830000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	1950048000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1973359000	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	10000000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	25310000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7532000	USD
CY2013Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1322383000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1323106000	USD
CY2014Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1115753000	USD
CY2014Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	20109796	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	25467112	shares
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2382122000	USD
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CY2013Q3	us-gaap	Stockholders Equity StockholdersEquity	2311876000	USD
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	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9263000	USD
	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	3301000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2112000	USD
CY2014Q3	us-gaap	Stockholders Equity StockholdersEquity	2768093000	USD
	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	18909	shares
	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	5583093	shares
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	630000	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	9049000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3428000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	62499000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	199992000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	2364225000	USD
	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	4855000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	190830000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	77978000	USD
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	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1249000	USD
	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	3916000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10382000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	368932	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	208440	shares
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CY2012Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	115500000	USD
CY2014Q3	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	115500000	USD
CY2014Q3	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	43788000	USD
CY2013Q3	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	60387000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	395630000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	386108000	USD
CY2014Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	2514000	USD
CY2013Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1084000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	6730000	USD
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CY2014Q3	ewbc	Tax Expense On Sale Of Available For Sale Investment Securities TaxExpenseOnSaleOfAvailableForSaleInvestmentSecurities	1056000	USD
CY2013Q3	ewbc	Tax Expense On Sale Of Available For Sale Investment Securities TaxExpenseOnSaleOfAvailableForSaleInvestmentSecurities	455000	USD
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CY2014Q3	us-gaap	Goodwill Goodwill	458467000	USD
CY2014Q3	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	230282	shares
CY2014Q3	ewbc	Other Real Estate Owned Covered Net OtherRealEstateOwnedCoveredNet	7433000	USD
CY2014Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	34691000	USD
CY2014Q3	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	54324000	USD
CY2014Q3	ewbc	Investment In Affordable Housing Partnerships InvestmentInAffordableHousingPartnerships	179606000	USD
CY2014Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	181999000	USD
CY2014Q3	us-gaap	Interest Receivable InterestReceivable	96054000	USD
CY2014Q3	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	25112000	USD
CY2014Q3	ewbc	Finite Lived Core Deposits Net FiniteLivedCoreDepositsNet	47792000	USD
CY2014Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	100604000	USD
CY2014Q3	us-gaap	Other Assets OtherAssets	768707000	USD
CY2014Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	7270385000	USD
CY2014Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	16541879000	USD
CY2014Q3	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	316699000	USD
CY2014Q3	us-gaap	Bank Acceptances Executed And Outstanding BankAcceptancesExecutedAndOutstanding	25112000	USD
CY2014Q3	us-gaap	Long Term Debt LongTermDebt	230790000	USD
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CY2014Q3	us-gaap	Common Stock Value CommonStockValue	163000	USD
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CY2014Q3	us-gaap	Treasury Stock Value TreasuryStockValue	427348000	USD
CY2014Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	262258000	USD
CY2014Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	11364000	USD
CY2014Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	5344000	USD
CY2014Q3	ewbc	Investment In Federal Home Loan Bank Stock InvestmentInFederalHomeLoanBankStock	663000	USD
CY2014Q3	ewbc	Investment In Federal Reserve Bank Stock InvestmentInFederalReserveBankStock	814000	USD
CY2014Q3	ewbc	Short Term Investments As Presented In Statements Of Income ShortTermInvestmentsAsPresentedInStatementsOfIncome	5505000	USD
CY2014Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	17158000	USD
CY2014Q3	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	1027000	USD
CY2014Q3	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	9578000	USD
CY2014Q3	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1211000	USD
CY2014Q3	ewbc	Provision For Loan Lease And Other Losses Noncovered ProvisionForLoanLeaseAndOtherLossesNoncovered	7556000	USD
CY2014Q3	ewbc	Provision For Loan Lease And Other Losses Covered ProvisionForLoanLeaseAndOtherLossesCovered	7669000	USD
CY2014Q3	ewbc	Changes In Fdic Indemnification Asset Receivable Or Payable ChangesInFDICIndemnificationAssetReceivableOrPayable	-39647000	USD
CY2014Q3	ewbc	Branch Fees BranchFees	9515000	USD
CY2014Q3	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	2514000	USD
CY2014Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3823000	USD
CY2014Q3	us-gaap	Servicing Fees Net ServicingFeesNet	2874000	USD
CY2014Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	58111000	USD
CY2014Q3	us-gaap	Occupancy Net OccupancyNet	15842000	USD
CY2014Q3	ewbc	Amortization Of Investments In Affordable Housing Partnerships AmortizationOfInvestmentsInAffordableHousingPartnerships	36936000	USD
CY2014Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2597000	USD
CY2014Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5247000	USD
CY2014Q3	ewbc	Loan Processing Income Expense LoanProcessingIncomeExpense	1127000	USD
CY2014Q3	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	-1422000	USD
CY2014Q3	us-gaap	Legal Fees LegalFees	32500000	USD
CY2014Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2211000	USD
CY2014Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13644000	USD
CY2014Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20848000	USD
CY2014Q3	us-gaap	Professional Fees ProfessionalFees	2982000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-138465000	USD
CY2013Q4	ewbc	Fdic Indemnification Asset Liabilities FDICIndemnificationAssetLiabilities	74708000	USD
	ewbc	Proceeds From Sales And Net Change In Loans Held For Sale ProceedsFromSalesAndNetChangeInLoansHeldForSale	40850000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	793313000	USD
	ewbc	Other Investments Change In Net Unrealized Holding Gain Loss Net Of Tax OtherInvestmentsChangeInNetUnrealizedHoldingGainLossNetOfTax	-120000	USD
CY2013	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2014Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2013Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-20000000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	1249000	USD
CY2013Q3	ewbc	Net Reduction To Interest Expense Related To Net Settlements Of Derivatives NetReductionToInterestExpenseRelatedToNetSettlementsOfDerivatives	894000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	36130000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	14756000	USD
	ewbc	Investment In Federal Home Loan Bank Stock InvestmentInFederalHomeLoanBankStock	2559000	USD
	ewbc	Investment In Federal Reserve Bank Stock InvestmentInFederalReserveBankStock	2344000	USD
	ewbc	Short Term Investments As Presented In Statements Of Income ShortTermInvestmentsAsPresentedInStatementsOfIncome	17461000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	48609000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	3087000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	29845000	USD
	ewbc	Provision For Loan Lease And Other Losses Covered ProvisionForLoanLeaseAndOtherLossesCovered	5704000	USD
	ewbc	Changes In Fdic Indemnification Asset Receivable Or Payable ChangesInFDICIndemnificationAssetReceivableOrPayable	-150839000	USD
	ewbc	Branch Fees BranchFees	28480000	USD
	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	6603000	USD
	ewbc	Fees And Commissions Letters Of Credit FeesAndCommissionsLettersOfCredit	19110000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	6984000	USD
	us-gaap	Servicing Fees Net ServicingFeesNet	7867000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2868000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	20715000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11206000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	172469000	USD
	us-gaap	Occupancy Net OccupancyNet	48227000	USD
	ewbc	Amortization Of Investments In Affordable Housing Partnerships AmortizationOfInvestmentsInAffordableHousingPartnerships	55751000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7721000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	16761000	USD
	ewbc	Loan Processing Income Expense LoanProcessingIncomeExpense	2604000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	695000	USD
	us-gaap	Legal Fees LegalFees	45403000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	13351000	USD
	us-gaap	Professional Fees ProfessionalFees	6359000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	59964000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	52923000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	630000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	101130000	USD
	ewbc	Accretion Amortization Of Discount And Premiums Loans And Other Assets AccretionAmortizationOfDiscountAndPremiumsLoansAndOtherAssets	155365000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	10382000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	34107000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3916000	USD
	ewbc	Net Gain On Sales Of Investment Securities Loans And Other Assets NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets	35182000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	92475000	USD
	ewbc	Proceeds From Sales And Net Change In Loans Held For Sale ProceedsFromSalesAndNetChangeInLoansHeldForSale	186498000	USD
	ewbc	Net Change In Accrued Interest Receivable And Other Assets NetChangeInAccruedInterestReceivableAndOtherAssets	17282000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-169709000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1378000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-6241000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	2520300000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	78946000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	375000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	504820000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	16446000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8342000	USD
	ewbc	Investments In Affordable Housing Partnerships And Other Investments InvestmentsInAffordableHousingPartnershipsAndOtherInvestments	62009000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	395630000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	220680000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	53960000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	353031000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-30349000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	5436000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2080497000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3916000	USD
	us-gaap	Interest Paid InterestPaid	85534000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	279954000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	460828000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	42175000	USD
CY2014Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	88863000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	77772000	USD
	ewbc	Net Reduction To Interest Expense Related To Net Settlements Of Derivatives NetReductionToInterestExpenseRelatedToNetSettlementsOfDerivatives	1800000	USD
CY2014Q3	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	8290000	USD
CY2013Q3	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	5936000	USD
	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	22148000	USD
	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	14507000	USD
CY2013Q3	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	514000	USD
	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	817000	USD
CY2014Q3	ewbc	Percentage Of Companys Liability For Losses Under Shared Loss Agreements PercentageOfCompanysLiabilityForLossesUnderSharedLossAgreements	0.20	pure
CY2013Q3	ewbc	Percentage Of Companys Liability For Losses Under Shared Loss Agreements PercentageOfCompanysLiabilityForLossesUnderSharedLossAgreements	0.20	pure
	ewbc	Percentage Of Companys Liability For Losses Under Shared Loss Agreements PercentageOfCompanysLiabilityForLossesUnderSharedLossAgreements	0.20	pure
	ewbc	Percentage Of Companys Liability For Losses Under Shared Loss Agreements PercentageOfCompanysLiabilityForLossesUnderSharedLossAgreements	0.20	pure
CY2014Q3	ewbc	Percentage Of Eligible Losses For Which Fdic Is Obligated To Reimburse PercentageOfEligibleLossesForWhichFdicIsObligatedToReimburse	0.80	pure
CY2013Q3	ewbc	Percentage Of Eligible Losses For Which Fdic Is Obligated To Reimburse PercentageOfEligibleLossesForWhichFdicIsObligatedToReimburse	0.80	pure
CY2013Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	115500000	USD
CY2014Q3	ewbc	Number Of Grades Of Risk Rating System NumberOfGradesOfRiskRatingSystem	8	item
CY2014Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1820	pure
	us-gaap	Mortgage Loan Related To Property Sales1 MortgageLoanRelatedToPropertySales1	2000000	USD
CY2013Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	995000000	USD
CY2014Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	805106000	USD
	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-15000000	USD
CY2014Q1	ewbc	Common Stock Equivalent To Assumed Obligation Of Holders Rights Unexercised Warrant CommonStockEquivalentToAssumedObligationOfHoldersRightsUnexercisedWarrant	230282	shares
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	item
	ewbc	Number Of Business Divisions NumberOfBusinessDivisions	3	item
CY2014Q3	ewbc	Number Of Segment Whom Broad Administrative Support Provided NumberOfSegmentWhomBroadAdministrativeSupportProvided	2	item
CY2014Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	285948000	USD
CY2013Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	281706000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	866563000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	775482000	USD
CY2014Q3	ewbc	Charge For Funds Used ChargeForFundsUsed	75812000	USD
CY2013Q3	ewbc	Charge For Funds Used ChargeForFundsUsed	67862000	USD
	ewbc	Charge For Funds Used ChargeForFundsUsed	204373000	USD
	ewbc	Charge For Funds Used ChargeForFundsUsed	152274000	USD

Files In Submission

Name	View Source	Status
0001104659-14-078429-index-headers.html	Edgar Link	pending
0001104659-14-078429-index.html	Edgar Link	pending
0001104659-14-078429.txt	Edgar Link	pending
0001104659-14-078429-xbrl.zip	Edgar Link	pending
a14-19708_110q.htm	Edgar Link	pending
a14-19708_1ex31d1.htm	Edgar Link	pending
a14-19708_1ex31d2.htm	Edgar Link	pending
a14-19708_1ex32d1.htm	Edgar Link	pending
a14-19708_1ex32d2.htm	Edgar Link	pending
ewbc-20140930.xml	Edgar Link	completed
ewbc-20140930.xsd	Edgar Link	pending
ewbc-20140930_cal.xml	Edgar Link	unprocessable
ewbc-20140930_def.xml	Edgar Link	unprocessable
ewbc-20140930_lab.xml	Edgar Link	unprocessable
ewbc-20140930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$EWBC
EAST WEST BANCORP INC Stock $ewbc

2014 Q3 Form 10-Q Financial Statement

#000110465914078429 Filed on November 07, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EWBC EAST WEST BANCORP INC Stock $ewbc

2014 Q3 Form 10-Q Financial Statement

#000110465914078429 Filed on November 07, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EWBC
EAST WEST BANCORP INC Stock $ewbc