$CATY
CATHAY GENERAL BANCORP Stock $caty

$caty Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000143774919022175 Filed on November 08, 2019

Income Statement

Concept	2019 Q4	2019 Q3	2018 Q3
Revenue		$197.8M	$176.9M
YoY Change		11.85%	14.79%
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	$1.800M	$1.700M	$1.700M
YoY Change	5.88%	0.0%	-10.53%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$50.02M	$50.83M	$31.78M
YoY Change	30.15%	59.94%	52.2%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$83.67M	$93.81M	$88.46M
YoY Change	2.23%	6.05%	4.18%
Income Tax	$16.29M	$20.97M	$18.70M
% Of Pretax Income	19.47%	22.36%	21.14%
Net Earnings	$67.38M	$72.84M	$69.76M
YoY Change	4.22%	4.41%	40.23%
Net Earnings / Revenue		36.82%	39.44%
Basic Earnings Per Share	$0.85	$0.91	$0.86
Diluted Earnings Per Share	$0.84	$0.91	$0.85
COMMON SHARES
Basic Shares Outstanding	79.71M	79.74M	81.31M
Diluted Shares Outstanding		79.99M	81.86M

Balance Sheet

Concept	2019 Q4	2019 Q3	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$593.8M	$825.1M	$582.0M
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	$104.2M	$103.8M	$102.6M
YoY Change	1.02%	1.22%	-4.99%
Goodwill	$372.2M	$372.2M	$372.2M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$6.296M	$6.821M	$7.391M
YoY Change	-12.48%	-7.71%	-21.44%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$18.09B	$18.00B	$16.46B
YoY Change	7.8%	9.37%	4.66%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$36.00M	$36.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$25.68M		$0.00
YoY Change			-100.0%
Long-Term Debt Due	$0.00	$26.00M	$19.00M
YoY Change	-100.0%	36.84%
Total Short-Term Liabilities	$36.00M	$62.00M	$19.00M
YoY Change	89.47%	226.32%	-81.0%
LONG-TERM LIABILITIES
Long-Term Debt	$148.0M	$165.0M	$193.0M
YoY Change	-21.28%	-14.51%	40.88%
Other Long-Term Liabilities	$217.0M	$261.0M	$227.0M
YoY Change	7.96%	14.98%	-35.88%
Total Long-Term Liabilities	$365.0M	$426.0M	$420.0M
YoY Change	-6.17%	1.43%	-14.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$36.00M	$62.00M	$19.00M
Total Long-Term Liabilities	$365.0M	$426.0M	$420.0M
Total Liabilities	$15.80B	$15.76B	$14.34B
YoY Change	7.75%	9.86%	4.25%
SHAREHOLDERS EQUITY
Retained Earnings	$1.659B	$1.616B	$1.439B
YoY Change	12.17%	12.3%	12.89%
Common Stock	$900.0K	$900.0K	$896.0K
YoY Change	0.22%	0.45%	0.67%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$318.5M	$318.5M	$239.6M
YoY Change	12.86%	32.95%	0.0%
Treasury Stock Shares	$10.33M	$10.33M	$8.211M
Shareholders Equity	$2.294B	$2.246B	$2.117B
YoY Change
Total Liabilities & Shareholders Equity	$18.09B	$18.00B	$16.46B
YoY Change	7.8%	9.37%	4.66%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2018 Q3
OPERATING ACTIVITIES
Net Income	$67.38M	$72.84M	$69.76M
YoY Change	4.22%	4.41%	40.23%
Depreciation, Depletion And Amortization	$1.800M	$1.700M	$1.700M
YoY Change	5.88%	0.0%	-10.53%
Cash From Operating Activities	$111.3M	$150.2M	$89.20M
YoY Change	14.51%	68.39%	-1451.52%
INVESTING ACTIVITIES
Capital Expenditures	-$2.000M	-$2.400M	-$1.800M
YoY Change	-9.09%	33.33%	-357.14%
Acquisitions
YoY Change
Other Investing Activities	-$380.0M	-$183.2M	-$124.8M
YoY Change	16.56%	46.79%	-47.5%
Cash From Investing Activities	-$382.0M	-$185.7M	-$126.4M
YoY Change	16.39%	46.91%	-46.67%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	39.40M	302.9M	215.2M
YoY Change	-84.51%	40.75%	-30.18%
NET CHANGE
Cash From Operating Activities	111.3M	150.2M	89.20M
Cash From Investing Activities	-382.0M	-185.7M	-126.4M
Cash From Financing Activities	39.40M	302.9M	215.2M
Net Change In Cash	-231.3M	267.4M	178.0M
YoY Change	-1092.7%	50.22%	175.54%
FREE CASH FLOW
Cash From Operating Activities	$111.3M	$150.2M	$89.20M
Capital Expenditures	-$2.000M	-$2.400M	-$1.800M
Free Cash Flow	$113.3M	$152.6M	$91.00M
YoY Change	13.98%	67.69%	-1346.58%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
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	caty	Letter Of Credit Commissions LetterOfCreditCommissions	4733000	USD
	caty	Letter Of Credit Commissions LetterOfCreditCommissions	4110000	USD
CY2019Q3	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2018Q3	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	340000	USD
CY2019Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7424000	USD
CY2018Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4780000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	20097000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	17151000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	10388000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	7835000	USD
	us-gaap	Noninterest Income NoninterestIncome	36103000	USD
	us-gaap	Noninterest Income NoninterestIncome	20912000	USD
CY2019Q3	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	31915000	USD
CY2018Q3	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	30514000	USD
	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	97200000	USD
	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	91491000	USD
CY2019Q3	us-gaap	Occupancy Net OccupancyNet	5579000	USD
CY2018Q3	us-gaap	Occupancy Net OccupancyNet	5186000	USD
	us-gaap	Occupancy Net OccupancyNet	16617000	USD
	us-gaap	Occupancy Net OccupancyNet	15808000	USD
CY2019Q3	us-gaap	Equipment Expense EquipmentExpense	2741000	USD
CY2018Q3	us-gaap	Equipment Expense EquipmentExpense	2772000	USD
	us-gaap	Equipment Expense EquipmentExpense	8453000	USD
	us-gaap	Equipment Expense EquipmentExpense	8477000	USD
CY2019Q3	us-gaap	Professional Fees ProfessionalFees	5952000	USD
CY2018Q3	us-gaap	Professional Fees ProfessionalFees	5286000	USD
	us-gaap	Professional Fees ProfessionalFees	17209000	USD
	us-gaap	Professional Fees ProfessionalFees	17055000	USD
CY2019Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3246000	USD
CY2018Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3080000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	9737000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	9450000	USD
CY2019Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2582000	USD
CY2018Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2555000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7190000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6732000	USD
CY2019Q3	us-gaap	Marketing Expense MarketingExpense	2436000	USD
CY2018Q3	us-gaap	Marketing Expense MarketingExpense	1263000	USD
	us-gaap	Marketing Expense MarketingExpense	5556000	USD
	us-gaap	Marketing Expense MarketingExpense	5521000	USD
CY2019Q3	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	190000	USD
CY2018Q3	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	-21000	USD
	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	839000	USD
	caty	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	-236000	USD
CY2019Q3	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	6997000	USD
CY2018Q3	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	11115000	USD
	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	26909000	USD
	caty	Operations Of Affordable Housing Investments Net And Alternative Energy Partnerships Net OperationsOfAffordableHousingInvestmentsNetAndAlternativeEnergyPartnershipsNet	21989000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	172000	USD
CY2018Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	190000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	515000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	704000	USD
CY2019Q3	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	0	USD
CY2018Q3	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	179000	USD
	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	0	USD
	caty	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	2083000	USD
CY2019Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3770000	USD
CY2018Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3845000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15871000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10949000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	65580000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	65964000	USD
	us-gaap	Noninterest Expense NoninterestExpense	206096000	USD
	us-gaap	Noninterest Expense NoninterestExpense	190023000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	93808000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88455000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	265702000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-862000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	17173000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12198000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73360000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	68895000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	228931000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	195039000	USD
CY2019Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4692000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1789000	USD
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	24701000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	255847000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20973000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18698000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53944000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48610000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	72835000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	69757000	USD
	us-gaap	Net Income Loss NetIncomeLoss	211758000	USD
	us-gaap	Net Income Loss NetIncomeLoss	207237000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1233000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2538000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	21216000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-16803000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-793000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1666000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-4119000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	4595000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-85000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-10000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-76000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-10000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	525000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.53
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.31
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.93
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.72
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79736814
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81311899
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80096855
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81224555
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79993830
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81855271
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80330616
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81770874
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	2199297000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	841000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	525000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	72835000	USD
	caty	Reclassification Of Tax Effects In Accumulated Other Comprehensive Income Resulting From The New Corporate Income Tax Rate ReclassificationOfTaxEffectsInAccumulatedOtherComprehensiveIncomeResultingFromTheNewCorporateIncomeTaxRate	0	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1982000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2000	USD
	caty	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	0	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1865000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	650000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	838000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5325000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	58498000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12198000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2245894000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	2064836000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	657000	USD
CY2018Q3	caty	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	0	USD
CY2018Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1921000	USD
CY2018Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19532000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-862000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	69757000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2116777000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2121866000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	2522000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2300000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	749000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	36301000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4848000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	74422000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17173000	USD
	us-gaap	Net Income Loss NetIncomeLoss	211758000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2245894000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1973304000	USD
	caty	Cumulative Effect Of Changes In Accounting Principlesequity Securities CumulativeEffectOfChangesInAccountingPrinciplesequitySecurities	0	USD
	us-gaap	Net Income Loss NetIncomeLoss	207237000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2116777000	USD
	us-gaap	Net Income Loss NetIncomeLoss	211758000	USD
	us-gaap	Net Income Loss NetIncomeLoss	207237000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-2000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-4500000	USD
	caty	Provision Reversal For Losses On Other Real Estate Owned ProvisionReversalForLossesOnOtherRealEstateOwned	494000	USD
	caty	Provision Reversal For Losses On Other Real Estate Owned ProvisionReversalForLossesOnOtherRealEstateOwned	0	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-9911000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-2342000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5009000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5593000	USD
	caty	Amortization Of Right Of Use Asset Operating Lease AmortizationOfRightOfUseAssetOperatingLease	6248000	USD
	caty	Amortization Of Right Of Use Asset Operating Lease AmortizationOfRightOfUseAssetOperatingLease	0	USD
	caty	Change In Operating Lease Liabilities ChangeInOperatingLeaseLiabilities	-5298000	USD
	caty	Change In Operating Lease Liabilities ChangeInOperatingLeaseLiabilities	0	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	193000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	567000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	795000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-0	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	38742000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	8000000	USD
	caty	Accretion Amortization Of Investments AccretionAmortizationOfInvestments	27009000	USD
	caty	Accretion Amortization Of Investments AccretionAmortizationOfInvestments	5384000	USD
	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-108000	USD
	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-14000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2376000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2371000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-0	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-107000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7764000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-4580000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5597000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5976000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	31640000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7863000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	-0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	340000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	64186000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	10998000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	323748000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	239332000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-0	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-5000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	539979000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	448805000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	149725000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	99644000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	233058000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	346328000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	975000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	5430000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	975000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	11265000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	803291000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	771290000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5125000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4496000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1905000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	3302000	USD
	caty	Net Increase In Investment In Affordable Housing Investing And Alternative Energy Partnerships NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships	35952000	USD
	caty	Net Increase In Investment In Affordable Housing Investing And Alternative Energy Partnerships NetIncreaseInInvestmentInAffordableHousingInvestingAndAlternativeEnergyPartnerships	36666000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-999659000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-801148000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	955679000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	890823000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	0	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-100000000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	3610000000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	4495000000	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	3540000000	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	4610000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	74422000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	58498000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	39918000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	37117000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	25507000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	29554000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	36301000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	USD
	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	2522000	USD
	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	1982000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	838000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2300000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3550000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	900767000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	609032000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	224856000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	47216000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	600290000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	534801000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	825146000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	582017000	USD
	us-gaap	Interest Paid Net InterestPaidNet	137422000	USD
	us-gaap	Interest Paid Net InterestPaidNet	79877000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	43507000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	48072000	USD
	caty	Net Change In Unrealized Holding Loss Gain On Securities Available For Sale Net Of Tax NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax	21292000	USD
	caty	Net Change In Unrealized Holding Loss Gain On Securities Available For Sale Net Of Tax NetChangeInUnrealizedHoldingLossGainOnSecuritiesAvailableForSaleNetOfTax	-16793000	USD
	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-4119000	USD
	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	4595000	USD
	caty	Transfers To Other Real Estate Owned From Loans Held For Investment TransfersToOtherRealEstateOwnedFromLoansHeldForInvestment	860000	USD
	caty	Transfers To Other Real Estate Owned From Loans Held For Investment TransfersToOtherRealEstateOwnedFromLoansHeldForInvestment	1646000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	75285000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><i><b><span style="text-decoration: underline; "><em style="font-weight: inherit; font-style: normal;">1.</em> Business</span></b></i></p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Cathay General Bancorp (“Bancorp”) is the holding company for Cathay Bank (the “Bank” and, together, with Bancorp, the “Company”), ten limited partnerships investing in affordable housing investments in which the Bank is the sole limited partner, Asia Realty Corp. and GBC Venture Capital, Inc. Bancorp also owns 100% of the common stock of <em style="font-weight: inherit; font-style: normal;">five</em> statutory business trusts created for the purpose of issuing capital securities. The Bank was founded in <em style="font-weight: inherit; font-style: normal;">1962</em> and offers a wide range of financial services. As of <em style="font-weight: inherit; font-style: normal;"> September 30, 2019, </em>the Bank operates 25 branches in Southern California, 13 branches in Northern California, 10 branches in New York State, four in Washington State, three in Illinois, two in Texas, onein Maryland, Massachusetts, Nevada, and New Jersey, one in Hong Kong, and a representative office in Taipei, Beijing, and Shanghai. Deposit accounts at the Hong Kong branch are <em style="font-weight: inherit; font-style: normal;">not</em> insured by the Federal Deposit Insurance Corporation (the “FDIC”).</p>
CY2019Q3	caty	Number Of Limited Partnerships In Housing Investments NumberOfLimitedPartnershipsInHousingInvestments	10	pure
CY2019Q3	caty	Percentage Of Subsidiaries Common Securities Owned By Parent Company PercentageOfSubsidiariesCommonSecuritiesOwnedByParentCompany	1	pure
	caty	Average Reserve Balances Required To Be Maintained With Federal Bank AverageReserveBalancesRequiredToBeMaintainedWithFederalBank	144000	USD
CY2018	caty	Average Reserve Balances Required To Be Maintained With Federal Bank AverageReserveBalancesRequiredToBeMaintainedWithFederalBank	5400000	USD
CY2019Q3	us-gaap	Margin Deposit Assets MarginDepositAssets	9100000	USD
CY2018Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	1800000	USD
CY2019Q3	us-gaap	Restricted Cash RestrictedCash	27400000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	7800000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	72835000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	69757000	USD
	us-gaap	Net Income Loss NetIncomeLoss	211758000	USD
	us-gaap	Net Income Loss NetIncomeLoss	207237000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79736814
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81311899
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80096855
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	81224555
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79993830
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81855271
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80330616
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	81770874
CY2019Q3	caty	Average Shares Of Stock Options And Restricted Stock Units With Anti Dilutive Effect AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect	32321
CY2018Q3	caty	Average Shares Of Stock Options And Restricted Stock Units With Anti Dilutive Effect AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect	1854
	caty	Average Shares Of Stock Options And Restricted Stock Units With Anti Dilutive Effect AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect	47690
	caty	Average Shares Of Stock Options And Restricted Stock Units With Anti Dilutive Effect AverageSharesOfStockOptionsAndRestrictedStockUnitsWithAntiDilutiveEffect	15625
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.53
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	35880
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	838000	USD
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	35880
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.37
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	718000	USD
	caty	Benefit Shortfall Of Tax Deductions From Sharebased Compensation BenefitShortfallOfTaxDeductionsFromSharebasedCompensation	600000	USD
	caty	Benefit Shortfall Of Tax Deductions From Sharebased Compensation BenefitShortfallOfTaxDeductionsFromSharebasedCompensation	800000	USD
CY2019Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1422431000	USD
CY2019Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	8997000	USD
CY2019Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3990000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1427438000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1267731000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1778000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	27000000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1242509000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	19993000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	20103000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	429449000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	427578000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	41718000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	41710000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	931271000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	938047000	USD
CY2019Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1422431000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1427438000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	400000	USD
CY2018Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	400000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7800000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-4600000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	32900000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	25100000	USD
CY2019Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	36778000	USD
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	0	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	194342000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	341000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	498778000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3649000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	693120000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3990000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	176667000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	629000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	899523000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	26371000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1076190000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	27000000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2019Q3	caty	Pledged Investment Securities PledgedInvestmentSecurities	20800000	USD
CY2018Q4	caty	Pledged Investment Securities PledgedInvestmentSecurities	28500000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	14728554000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	13995788000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	125908000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	122391000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1081000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1565000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	14601565000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	13871832000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	88800000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	106900000	USD
CY2019Q3	caty	Percentage Of Charge Off To Contractual Balances For Impaired Loans PercentageOfChargeOffToContractualBalancesForImpairedLoans	0.019	pure
CY2018Q4	caty	Percentage Of Charge Off To Contractual Balances For Impaired Loans PercentageOfChargeOffToContractualBalancesForImpairedLoans	0.093	pure
CY2019Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	97153000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	618000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	123851000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1145000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	110315000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1976000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	127756000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3188000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	48958000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	43408000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	77605000	USD
	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
	caty	Allowance For Credit Losses Specific Reserve AllowanceForCreditLossesSpecificReserve	125000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	32	pure
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	65315000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	46618000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	45439000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1501000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	42686000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	41571000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3802000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	95576000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	88847000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1501000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	120291000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	106886000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3802000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	47200000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	93423000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	14635131000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	14728554000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	41815000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	106057000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	13889731000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	13995788000	USD
CY2019Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3	pure
CY2019Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	7585000	USD
CY2019Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	6165000	USD
CY2019Q3	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2019Q3	caty	Allowance For Credit Losses Specific Reserve AllowanceForCreditLossesSpecificReserve	89000	USD
CY2018Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	6	pure
CY2018Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	5373000	USD
CY2018Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	5373000	USD
CY2018Q3	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2018Q3	caty	Allowance For Credit Losses Specific Reserve AllowanceForCreditLossesSpecificReserve	2483000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	23	pure
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	25937000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	10814000	USD
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	28051000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	28051000	USD
	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
	caty	Allowance For Credit Losses Specific Reserve AllowanceForCreditLossesSpecificReserve	2636000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	14728554000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	13995788000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1501000	USD
CY2019Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	88847000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	124407000	USD
CY2019Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	14639707000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	125908000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	14728554000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	3802000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	106886000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	118589000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	13888902000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	122391000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	13995788000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	122651000	USD
CY2019Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-2000000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3356000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	8613000	USD
CY2019Q3	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	5257000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	125908000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	121899000	USD
CY2018Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-1500000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	122000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3180000	USD
CY2018Q3	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	3058000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	123457000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	122391000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-2000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6300000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	11817000	USD
	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	5517000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	125908000	USD
CY2019Q3	caty	Reserve To Impaired Loans ReserveToImpairedLoans	1501000	USD
CY2019Q3	caty	Reserve To Non Impaired Loans ReserveToNonImpairedLoans	124407000	USD
CY2019Q3	caty	Reserve For Off Balance Sheet Credit Commitments ReserveForOffBalanceSheetCreditCommitments	4550000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	123279000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-4500000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1019000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5697000	USD
	caty	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	4678000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	123457000	USD
CY2018Q3	caty	Reserve To Impaired Loans ReserveToImpairedLoans	3704000	USD
CY2018Q3	caty	Reserve To Non Impaired Loans ReserveToNonImpairedLoans	119753000	USD
CY2018Q3	caty	Reserve For Off Balance Sheet Credit Commitments ReserveForOffBalanceSheetCreditCommitments	3088000	USD
CY2019Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	36800000	USD
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	0	USD
CY2019Q3	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	75300000	USD
CY2019Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	800000	USD
CY2019Q3	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-120000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	36974000	USD
CY2019Q3	us-gaap	Junior Subordinated Long Term Notes JuniorSubordinatedLongTermNotes	119100000	USD
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0314	pure
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y5M19D
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	34500000	USD
CY2019Q3	caty	Operating Lease Right Of Use Asset Accumulated Amortization OperatingLeaseRightOfUseAssetAccumulatedAmortization	6200000	USD
CY2019Q3	us-gaap	Operating Lease Expense OperatingLeaseExpense	3300000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	10100000	USD
CY2019Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	2100000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	6200000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2114000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8543000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7635000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6428000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	5426000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	9531000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	39677000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3535000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	36142000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	8835000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	7220000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	6406000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	5406000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4208000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	4899000	USD
CY2018Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Gain NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain	86875000	USD
CY2018Q4	caty	Foreign Exchange Contract Asset Fair Value Gain Disclosure ForeignExchangeContractAssetFairValueGainDisclosure	397000	USD
CY2019Q3	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	139466000	USD
CY2019Q3	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	1697000	USD
CY2018Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	467410000	USD
CY2018Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	7810000	USD
CY2019Q3	caty	Options Options	1172000	USD
CY2019Q3	caty	Option Contracts Fair Value OptionContractsFairValue	6000	USD
CY2018Q4	caty	Options Options	1215000	USD
CY2018Q4	us-gaap	Junior Subordinated Long Term Notes JuniorSubordinatedLongTermNotes	119100000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.203	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.190	pure
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	600000	USD
CY2019Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1427438000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	32862000	USD
CY2019Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1462993000	USD
CY2019Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	20175000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1242509000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	25098000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1275998000	USD
CY2018Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	3312000	USD
CY2019Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	203000	USD
CY2018Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	62000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	715000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	326000	USD
CY2019Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	11300000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	-289000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	874000	USD
CY2018Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	12700000	USD
CY2019Q3	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Gain NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithGain	70955000	USD
CY2019Q3	caty	Foreign Exchange Contract Asset Fair Value Gain Disclosure ForeignExchangeContractAssetFairValueGainDisclosure	965000	USD
CY2018Q4	caty	Option Contracts Fair Value OptionContractsFairValue	6000	USD
CY2019Q3	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Loss NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss	121769000	USD
CY2019Q3	caty	Foreign Currency Contract Asset Fair Value Loss Disclosure ForeignCurrencyContractAssetFairValueLossDisclosure	2435000	USD
CY2018Q4	caty	Notional Amount Of Foreign Currency Derivative Purchase Contracts With Loss NotionalAmountOfForeignCurrencyDerivativePurchaseContractsWithLoss	94977000	USD
CY2018Q4	caty	Foreign Currency Contract Asset Fair Value Loss Disclosure ForeignCurrencyContractAssetFairValueLossDisclosure	1763000	USD
CY2019Q3	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	581496000	USD
CY2019Q3	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	17734000	USD
CY2018Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	265166000	USD
CY2018Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	1543000	USD
CY2019Q3	caty	Commitments To Extend Notional Amount CommitmentsToExtendNotionalAmount	3097207000	USD
CY2019Q3	caty	Commitments To Extend Credit Fair Value CommitmentsToExtendCreditFairValue	-9291000	USD
CY2018Q4	caty	Commitments To Extend Notional Amount CommitmentsToExtendNotionalAmount	2691579000	USD
CY2018Q4	caty	Commitments To Extend Credit Fair Value CommitmentsToExtendCreditFairValue	-8843000	USD
CY2019Q3	caty	Standby Letters Of Credit Notional Amount StandbyLettersOfCreditNotionalAmount	264059000	USD
CY2019Q3	caty	Standby Letters Of Credit Fair Value StandbyLettersOfCreditFairValue	-2537000	USD
CY2018Q4	caty	Standby Letters Of Credit Notional Amount StandbyLettersOfCreditNotionalAmount	245087000	USD
CY2018Q4	caty	Standby Letters Of Credit Fair Value StandbyLettersOfCreditFairValue	-2662000	USD
CY2019Q3	caty	Other Letters Of Credit Notional Amount OtherLettersOfCreditNotionalAmount	29230000	USD
CY2019Q3	caty	Other Letters Of Credit Fair Value OtherLettersOfCreditFairValue	-28000	USD
CY2018Q4	caty	Other Letters Of Credit Notional Amount OtherLettersOfCreditNotionalAmount	35759000	USD
CY2018Q4	caty	Other Letters Of Credit Fair Value OtherLettersOfCreditFairValue	-30000	USD
CY2019Q3	caty	Bill Of Lading Guarantees Notional Amount BillOfLadingGuaranteesNotionalAmount	743000	USD
CY2019Q3	caty	Bill Of Lading Guarantees Fair Value BillOfLadingGuaranteesFairValue	0	USD
CY2018Q4	caty	Bill Of Lading Guarantees Notional Amount BillOfLadingGuaranteesNotionalAmount	730000	USD
CY2018Q4	caty	Bill Of Lading Guarantees Fair Value BillOfLadingGuaranteesFairValue	0	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	257189000	USD
CY2019Q3	us-gaap	Short Term Investments ShortTermInvestments	567957000	USD
CY2019Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1427438000	USD
CY2019Q3	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	36778000	USD
CY2019Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	15004114000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	32862000	USD
CY2019Q3	us-gaap	Investment In Federal Home Loan Bank Stock Fair Value Disclosure InvestmentInFederalHomeLoanBankStockFairValueDisclosure	17250000	USD
CY2019Q3	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	14703977000	USD
CY2019Q3	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	603014000	USD
CY2019Q3	caty	Other Borrowings Fair Value Disclosure OtherBorrowingsFairValueDisclosure	31844000	USD
CY2019Q3	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	113409000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	225333000	USD
CY2018Q4	us-gaap	Short Term Investments ShortTermInvestments	374957000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1242509000	USD
CY2018Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	13928162000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	25098000	USD
CY2018Q4	us-gaap	Investment In Federal Home Loan Bank Stock Fair Value Disclosure InvestmentInFederalHomeLoanBankStockFairValueDisclosure	17250000	USD
CY2018Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	13754028000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	529500000	USD
CY2018Q4	caty	Other Borrowings Fair Value Disclosure OtherBorrowingsFairValueDisclosure	34031000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	132615000	USD
CY2014Q2	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	119100000	USD
CY2019Q3	us-gaap	Derivative Assets DerivativeAssets	1697000	USD
CY2019Q3	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet	1697000	USD
CY2019Q3	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet Not Offset NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset	1697000	USD
CY2019Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	17734000	USD
CY2019Q3	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet	17734000	USD
CY2019Q3	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	22198000	USD
CY2019Q3	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet Not Offset NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheetNotOffset	-4464000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	7810000	USD
CY2018Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet NetAmountOfDerivativeAssetsPresentedInTheBalanceSheet	7810000	USD
CY2018Q4	caty	Net Amount Of Derivative Assets Presented In The Balance Sheet Not Offset NetAmountOfDerivativeAssetsPresentedInTheBalanceSheetNotOffset	7810000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1543000	USD
CY2018Q4	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheet	1543000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	1543000	USD
CY2018Q4	caty	Net Amount Of Derivative Liabilities Presented In The Balance Sheet Not Offset NetAmountOfDerivativeLiabilitiesPresentedInTheBalanceSheetNotOffset	0	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	7586000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	6931000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	22791000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	20813000	USD
CY2019Q3	caty	Noninteres Income Not Inscope NoninteresIncomeNotInscope	2802000	USD
CY2018Q3	caty	Noninteres Income Not Inscope NoninteresIncomeNotInscope	904000	USD
	caty	Noninteres Income Not Inscope NoninteresIncomeNotInscope	13312000	USD
	caty	Noninteres Income Not Inscope NoninteresIncomeNotInscope	99000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	10388000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	7835000	USD
	us-gaap	Noninterest Income NoninterestIncome	36103000	USD
	us-gaap	Noninterest Income NoninterestIncome	20912000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2250000000	USD
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	124000000.0	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2120000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	211800000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	17200000	USD
	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	2500000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	74400000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	36300000	USD

Files In Submission

Name	View Source	Status
0001437749-19-022175-index-headers.html	Edgar Link	pending
0001437749-19-022175-index.html	Edgar Link	pending
0001437749-19-022175.txt	Edgar Link	pending
0001437749-19-022175-xbrl.zip	Edgar Link	pending
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report.css	Edgar Link	pending
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$CATY
CATHAY GENERAL BANCORP Stock $caty

2019 Q4 Form 10-Q Financial Statement

#000143774919022175 Filed on November 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CATY CATHAY GENERAL BANCORP Stock $caty

2019 Q4 Form 10-Q Financial Statement

#000143774919022175 Filed on November 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CATY
CATHAY GENERAL BANCORP Stock $caty