$KLIC
Kulicke and Soffa Industries Inc Stock $klic

$klic Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000005697821000068 Filed on May 06, 2021

Income Statement

Concept	2021 Q2	2020 Q1
Revenue	$340.2M	$150.7M
YoY Change	126.1%	30.05%
Cost Of Revenue	$191.7M	$81.44M
YoY Change	136.55%	34.98%
Gross Profit	$148.5M	$69.30M
YoY Change	113.89%	24.71%
Gross Profit Margin	43.65%	45.97%
Selling, General & Admin	$30.51M	$29.16M
YoY Change	9.33%	2.46%
% of Gross Profit	20.55%	42.08%
Research & Development	$34.87M	$29.07M
YoY Change	14.15%	-1.72%
% of Gross Profit	23.48%	41.94%
Depreciation & Amortization	$3.245M	$2.949M
YoY Change	-0.31%	-12.44%
% of Gross Profit	2.19%	4.26%
Operating Expenses	$65.38M	$58.23M
YoY Change	11.85%	0.33%
Operating Profit	$83.11M	$11.08M
YoY Change	657.58%	-549.33%
Interest Expense	$74.00K	$661.0K
YoY Change	-83.41%	160.24%
% of Operating Profit	0.09%	5.97%
Other Income/Expense, Net
YoY Change
Pretax Income	$83.63M	$13.09M
YoY Change	602.8%	1042.23%
Income Tax	$12.21M	$1.162M
% Of Pretax Income	14.6%	8.88%
Net Earnings	$71.32M	$11.89M
YoY Change	539.58%	-434.4%
Net Earnings / Revenue	20.97%	7.89%
Basic Earnings Per Share	$1.15	$0.19
Diluted Earnings Per Share	$1.13	$0.19
COMMON SHARES
Basic Shares Outstanding	62.07M shares	63.68M shares
Diluted Shares Outstanding	63.24M shares	64.22M shares

Balance Sheet

Concept	2021 Q2	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$564.3M	$640.3M
YoY Change	9.4%	2.14%
Cash & Equivalents	$257.3M	$392.3M
Short-Term Investments	$307.0M	$248.0M
Other Short-Term Assets	$23.50M	$24.10M
YoY Change	71.53%	70.92%
Inventory	$140.0M	$106.2M
Prepaid Expenses
Receivables	$307.9M	$199.8M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$1.036B	$970.4M
YoY Change	23.42%	9.98%
LONG-TERM ASSETS
Property, Plant & Equipment	$61.97M	$55.65M
YoY Change	11.0%	-27.11%
Goodwill	$73.55M	$55.95M
YoY Change	31.21%	-0.19%
Intangibles	$46.05M	$39.76M
YoY Change	20.52%	-16.16%
Long-Term Investments	$0.00	$1.149M
YoY Change	-100.0%	-11.68%
Other Assets	$2.292M	$2.027M
YoY Change	8.52%	-16.58%
Total Long-Term Assets	$221.2M	$190.5M
YoY Change	16.27%	-3.69%
TOTAL ASSETS
Total Short-Term Assets	$1.036B	$970.4M
Total Long-Term Assets	$221.2M	$190.5M
Total Assets	$1.257B	$1.161B
YoY Change	22.1%	7.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$123.8M	$50.53M
YoY Change	149.36%	51.39%
Accrued Expenses	$47.10M	$39.70M
YoY Change	0.21%	62.04%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$115.6M
YoY Change		1056.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$259.6M	$262.0M
YoY Change	81.77%	113.48%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00
YoY Change		-100.0%
Other Long-Term Liabilities	$13.17M	$9.754M
YoY Change	30.69%	3.77%
Total Long-Term Liabilities	$13.17M	$9.754M
YoY Change	30.69%	3.77%
TOTAL LIABILITIES
Total Short-Term Liabilities	$259.6M	$262.0M
Total Long-Term Liabilities	$13.17M	$9.754M
Total Liabilities	$390.1M	$398.5M
YoY Change	39.42%	55.1%
SHAREHOLDERS EQUITY
Retained Earnings	$718.4M	$604.0M
YoY Change	18.21%	0.35%
Common Stock	$542.1M	$532.9M
YoY Change	1.05%	1.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$392.7M	$365.1M
YoY Change	1.39%	21.27%
Treasury Stock Shares	23.30M shares	22.45M shares
Shareholders Equity	$866.9M	$762.4M
YoY Change
Total Liabilities & Shareholders Equity	$1.257B	$1.161B
YoY Change	22.1%	7.48%

Cashflow Statement

Concept	2021 Q2	2020 Q1
OPERATING ACTIVITIES
Net Income	$71.32M	$11.89M
YoY Change	539.58%	-434.4%
Depreciation, Depletion And Amortization	$3.245M	$2.949M
YoY Change	-0.31%	-12.44%
Cash From Operating Activities	$27.10M	$14.10M
YoY Change	14.83%	-48.35%
INVESTING ACTIVITIES
Capital Expenditures	-$4.000M	-$2.500M
YoY Change	29.03%	-16.67%
Acquisitions
YoY Change
Other Investing Activities	$5.800M	-$129.0M
YoY Change	-89.26%	-190.85%
Cash From Investing Activities	$1.800M	-$131.5M
YoY Change	-96.46%	-194.6%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-9.900M	12.10M
YoY Change	-93.17%	-148.02%
NET CHANGE
Cash From Operating Activities	27.10M	14.10M
Cash From Investing Activities	1.800M	-131.5M
Cash From Financing Activities	-9.900M	12.10M
Net Change In Cash	19.00M	-105.3M
YoY Change	-126.99%	-174.63%
FREE CASH FLOW
Cash From Operating Activities	$27.10M	$14.10M
Capital Expenditures	-$4.000M	-$2.500M
Free Cash Flow	$31.10M	$16.60M
YoY Change	16.48%	-45.21%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Period End Date DocumentPeriodEndDate	2021-04-03
	dei	Entity Registrant Name EntityRegistrantName	KULICKE & SOFFA INDUSTRIES INC
	dei	Entity Central Index Key EntityCentralIndexKey	0000056978
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--10-02
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Entity Address City Or Town EntityAddressCityOrTown	Singapore
CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	942000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	968000	USD
CY2021Q2	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2020Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2021Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2021Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2020Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	85364000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	85364000	shares
CY2021Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	62061000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	61558000	shares
CY2021Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	23303000	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	23806000	shares
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
	klic	Period Of Warranty For Manufacturing Defects PeriodOfWarrantyForManufacturingDefects	P1Y
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-04-03
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-121
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	23-1498399
	dei	Entity Address Address Line1 EntityAddressAddressLine1	23A Serangoon North Avenue 5
	dei	Entity Address Address Line2 EntityAddressAddressLine2	#01-01,
	dei	Entity Address Country EntityAddressCountry	SG
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	554369
	dei	City Area Code CityAreaCode	215
	dei	Local Phone Number LocalPhoneNumber	784-6000
	dei	Security12b Title Security12bTitle	Common Stock, Without Par Value
	dei	Trading Symbol TradingSymbol	KLIC
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	25183000	USD
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CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	12392000	USD
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CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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	us-gaap	Revenues Revenues	608020000	USD
	us-gaap	Revenues Revenues	295038000	USD
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	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	338044000	USD
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	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	66408000	USD
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CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	11076000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	137156000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	24490000	USD
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	us-gaap	Investment Income Interest InvestmentIncomeInterest	1237000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	5514000	USD
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	us-gaap	Interest Expense InterestExpense	106000	USD
	us-gaap	Interest Expense InterestExpense	1244000	USD
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	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18510000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3295000	USD
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	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-100000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	119683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25365000	USD
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CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
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	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62023000	shares
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	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63118000	shares
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CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	71320000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	119683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25365000	USD
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	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-80000	USD
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CY2020Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1981000	USD
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CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	688000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-72000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	978000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-269000	USD
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CY2020Q1	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-1909000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-544000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-1105000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6241000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2785000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1522000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	508000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65079000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9103000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	121205000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25873000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	757994000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	173000	USD
CY2021Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1206000	USD
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CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7763000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	56126000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	807616000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	185000	USD
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1110000	USD
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CY2021Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8688000	USD
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CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3500000	USD
CY2020Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7557000	USD
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CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9103000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	762398000	USD
	us-gaap	Net Income Loss NetIncomeLoss	119683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25365000	USD
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	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9528000	USD
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	7364000	USD
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	7330000	USD
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	us-gaap	Inventory Write Down InventoryWriteDown	1136000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	2176000	USD
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	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-193000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-842000	USD
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	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-100000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	71320000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6241000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65079000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	866860000	USD
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CY2019Q4	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	222000	USD
CY2019Q4	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	5369000	USD
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CY2019Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16770000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	775653000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	221000	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	18522000	USD
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	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	3821000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	29307000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	19013000	USD
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	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-80000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-5958000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-596000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	184000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	85720000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39083000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	26338000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8899000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4691000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	121000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	1288000	USD
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	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	140000000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	169000000	USD
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	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	164000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	28000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2866000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	25194000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	16087000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	15233000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-19117000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	14258000	USD
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	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	69206000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28123000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188127000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	364184000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	257333000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	392307000	USD
	us-gaap	Interest Paid Net InterestPaidNet	106000	USD
	us-gaap	Interest Paid Net InterestPaidNet	26000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	21585000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	8987000	USD
	us-gaap	Basis Of Accounting BasisOfAccounting	BASIS OF PRESENTATION<div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">These consolidated condensed financial statements include the accounts of Kulicke and Soffa Industries, Inc. and its subsidiaries (“we,” “us,” “our,” or the “Company”) with appropriate elimination of intercompany balances and transactions. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The interim consolidated condensed financial statements are unaudited and, in management's opinion, include all adjustments (consisting only of normal and recurring adjustments) necessary for a fair statement of results for these interim periods. The interim consolidated condensed financial statements do not include all of the information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended October 3, 2020, filed with the Securities and Exchange Commission, which includes Consolidated Balance Sheets as of October 3, 2020 and September 28, 2019, and the related Consolidated Statements of Operations, Statements of Comprehensive Income, Changes in Shareholders' Equity and Cash Flows for each of the years in the three-year period ended October 3, 2020. The results of operations for any interim period are not necessarily indicative of the results of operations for any other interim period or for a full year.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Fiscal Year</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Each of the Company's first three fiscal quarters end on the Saturday that is 13 weeks after the end of the immediately preceding fiscal quarter. The fourth quarter of each fiscal year ends on the Saturday closest to September 30. Fiscal 2021 quarters end on January 2, 2021, April 3, 2021, July 3, 2021 and October 2, 2021. In fiscal years consisting of 53 weeks, the fourth quarter will consist of 14 weeks. Fiscal 2020 quarters ended on December 28, 2019, March 28, 2020, June 27, 2020 and October 3, 2020. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Nature of Business</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company designs, manufactures and sells capital equipment and tools as well as services, maintains, repairs and upgrades equipment, all used to assemble semiconductor devices. The Company's operating results depend upon the capital and operating expenditures of semiconductor device manufacturers, integrated device manufacturers, outsourced semiconductor assembly and test providers (“OSATs”), and other electronics manufacturers including automotive electronics suppliers, worldwide which, in turn, depend on the current and anticipated market demand for semiconductors and products utilizing semiconductors. The semiconductor industry is highly volatile and experiences downturns and slowdowns which can have a severe negative effect on the semiconductor industry's demand for semiconductor capital equipment, including assembly equipment manufactured and sold by the Company and, to a lesser extent, tools, including those sold by the Company. These downturns and slowdowns have in the past adversely affected the Company's operating results. The Company believes such volatility will continue to characterize the industry and the Company's operations in the future.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of consolidated condensed financial statements requires management to make assumptions, estimates and judgments that affect the reported amounts of assets and liabilities, net revenue and expenses during the reporting periods, and disclosures of contingent assets and liabilities as of the date of the consolidated condensed financial statements. On an ongoing basis, management evaluates estimates, including but not limited to, those related to accounts receivable, reserves for excess and obsolete inventory, carrying value and lives of fixed assets, goodwill and intangible assets,</span><span style="color:#ee2724;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the valuation estimates and assessment of impairment and observable price adjustments, income taxes, equity-based compensation expense, and warranties. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable. As a result, management makes judgments regarding the carrying values of the Company's assets and liabilities that are not readily apparent from other sources. Authoritative pronouncements, historical experience and assumptions are used as the basis for making estimates, and on an ongoing basis, management evaluates these estimates. Actual results may differ from these estimates.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Due to the coronavirus (“COVID-19”) pandemic, there has been uncertainty and disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of April 3, 2021. While there was no material impact to our consolidated condensed financial statements as of and for the quarter ended April 3, 2021, these estimates may change, as new events occur and additional information is obtained, as well as other factors related to COVID-19 that could result in material impacts to our consolidated condensed financial statements in future reporting periods. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Vulnerability to Certain Concentrations</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments which may subject the Company to concentrations of credit risk as of April 3, 2021 and October 3, 2020 consisted primarily of trade receivables. The Company manages credit risk associated with investments by investing its excess cash in highly rated debt instruments of the U.S. government and its agencies, financial institutions, and corporations. The Company has established investment guidelines relative to diversification and maturities designed to maintain safety and liquidity. These guidelines are periodically reviewed and modified as appropriate. The Company does not have any exposure to sub-prime financial instruments or auction rate securities. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company's trade receivables result primarily from the sale of semiconductor equipment, related accessories and replacement parts, and tools to a relatively small number of large manufacturers in a highly concentrated industry. Write-offs of uncollectible accounts have historically not been material. The Company actively monitors its customers' financial strength to reduce the risk of loss, including as a result of COVID-19. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company's products are complex and require raw materials, components and subassemblies having a high degree of reliability, accuracy and performance. The Company relies on subcontractors to manufacture many of these components and subassemblies and it relies on sole source suppliers for some important components and raw material inventory.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Foreign Currency Translation and Remeasurement</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The majority of the Company's business is transacted in U.S. dollars; however, the functional currencies of some of the Company's subsidiaries are their local currencies. In accordance with ASC No. 830, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Foreign Currency Matters</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> (“ASC 830”), for a subsidiary of the Company that has a functional currency other than the U.S. dollar, gains and losses resulting from the translation of the functional currency into U.S. dollars for financial statement presentation are not included in determining net income, but are accumulated in the cumulative translation adjustment account as a separate component of shareholders' equity (accumulated other comprehensive income). The tax effect of currency translation adjustments related to unremitted foreign earnings no longer deemed to be indefinitely reinvested outside the U.S. is reflected in the determination of the Company’s net income or other comprehensive income (“OCI”). Gains and losses resulting from foreign currency transactions are included in the determination of net income. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company's operations are exposed to changes in foreign currency exchange rates due to transactions denominated in currencies other than the location's functional currency. The Company is also exposed to foreign currency fluctuations that impact the remeasurement of net monetary assets of those operations whose functional currency, the U.S. dollar, differs from their respective local currencies, most notably in Israel, Singapore and Switzerland. In addition to net monetary remeasurement, the Company has exposures related to the translation of subsidiary financial statements from their functional currency, the local currency, into its reporting currency, the U.S. dollar, most notably in the Netherlands, China, Taiwan, Japan and Germany. The Company's U.S. operations also have foreign currency exposure due to net monetary assets denominated in currencies other than the U.S. dollar.</span></div><div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Derivative Financial Instruments </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s primary objective for holding derivative financial instruments is to manage the fluctuation in foreign exchange rates and accordingly is not speculative in nature. The Company’s international operations are exposed to changes in foreign exchange rates as described above. The Company has established a program to monitor the forecasted transaction currency risk to protect against foreign exchange rate volatility. Generally, the Company uses foreign exchange forward contracts in these hedging programs. These instruments, which have maturities of up to twelve months, are recorded at fair value and are included in prepaid expenses and other current assets, or accrued expenses and other current liabilities. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our accounting policy for derivative financial instruments is based on whether they meet the criteria for designation as a cash flow hedge. A designated hedge with exposure to variability in the functional currency equivalent of the future foreign currency cash flows of a forecasted transaction is referred to as a cash flow hedge. The criteria for designating a derivative as a cash flow hedge include the assessment of the instrument’s effectiveness in risk reduction, matching of the derivative instrument to its underlying transaction, and the assessment of the probability that the underlying transaction will occur. For derivatives with cash flow hedge accounting designation, we report the after-tax gain / (loss) from the effective portion of the hedge as a component of accumulated other comprehensive income / (loss) and reclassify it into earnings in the same period in which the hedged transaction affects earnings and in the same line item on the Consolidated Condensed Statement of Operations as the impact of the hedged transaction. Derivatives that we designate as cash flow hedges are classified in the Consolidated Condensed Statement of Cash Flows in the same section as the underlying item, primarily within cash flows from operating activities. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The hedge effectiveness of these derivative instruments is evaluated by comparing the cumulative change in the fair value of the hedge contract with the cumulative change in the fair value of the forecasted cash flows of the hedged item.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If a cash flow hedge is discontinued because it is no longer probable that the original hedged transaction will occur as previously anticipated, the cumulative unrealized gain or loss on the related derivative is reclassified from accumulated other comprehensive income / (loss) into earnings. Subsequent gain / (loss) on the related derivative instrument is recognized into earnings in each period until the instrument matures, is terminated, is re-designated as a qualified cash flow hedge, or is sold. Ineffective portions of cash flow hedges, as well as amounts excluded from the assessment of effectiveness, are recognized in earnings. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Cash Equivalents </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company considers all highly liquid investments with original maturities of three months or less when purchased to be cash equivalents. Cash equivalents are measured at fair value based on Level 1 measurement, or quoted market prices, as defined by ASC No. 820, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value Measurements and Disclosures</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Equity Investments </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company invests in equity securities in companies to promote business and strategic objectives. Equity investments are measured and recorded as follows:</span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Equity method investments are equity securities in investees that provide the Company with the ability to exercise significant influence in which it lacks a controlling financial interest. Our proportionate share of the income or loss is recognized on a one-quarter lag and is recorded as share of results of equity-method investee, net of tax.</span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Non-marketable equity securities are equity securities without readily determinable fair value that are measured and recorded using a measurement alternative that measures the securities at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Allowance for Doubtful Accounts</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company maintains allowances for doubtful accounts for estimated losses resulting from its customers' failure to make required payments. If the financial condition of the Company's customers were to deteriorate, resulting in an impairment of their ability to make payments, including as a result of COVID-19, additional allowances may be required. If global or regional economic conditions deteriorate or political conditions were to change in some of the countries where the Company does business, including as a result of COVID-19, it could have a significant impact on the results of operations, and the Company's ability to realize the full value of its accounts receivable.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Inventories</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Inventories are stated at the lower of cost (on a first-in first-out basis) or net realizable value. The Company generally provides reserves for obsolete inventory and for inventory considered to be in excess of demand. Demand is generally defined as 18 months forecasted future consumption for equipment, 24 months forecasted future consumption for spare parts, and 12 months forecasted future consumption for tools. Forecasted consumption is based upon internal projections, historical sales volumes, customer order activity and a review of consumable inventory levels at customers' facilities. The Company communicates forecasts of its future consumption to its suppliers and adjusts commitments to those suppliers accordingly. If required, the Company reserves the difference between the carrying value of its inventory and the lower of cost or net realizable value, based upon projections about future consumption, and market conditions. If actual market conditions are less favorable than projections, additional inventory reserves may be required.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Inventory reserve provision for certain subsidiaries is determined based on management's estimate of future consumption for equipment and spare parts. This estimate is based on historical sales volumes, internal projections and market developments and trends. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Property, Plant and Equipment </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Property, plant and equipment are carried at cost. The cost of additions and those improvements which increase the capacity or lengthen the useful lives of assets are capitalized, while repair and maintenance costs are expensed as incurred. Depreciation and amortization are provided on a straight-line basis over the estimated useful lives as follows: buildings 25 years; machinery, equipment, furniture and fittings 3 to 10 years; toolings 1 year; and leasehold improvements are based on the shorter of the life of lease or life of asset. Purchased computer software costs related to business and financial systems are amortized over a five-year period on a straight-line basis. Land is not depreciated.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Valuation of Long-Lived Assets </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In accordance with ASC No. 360, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Property, Plant & Equipment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> ("ASC 360"), the Company's property, plant and equipment is tested for impairment based on undiscounted cash flows when triggering events occur, and if impaired, written-down to fair value based on either discounted cash flows or appraised values. ASC 360 also provides a single accounting model for long-lived assets to be disposed of by sale and establishes additional criteria that would have to be met to classify an asset as held for sale. The carrying amount of an asset or asset group is not recoverable to the extent it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group. Estimates of future cash flows used to test the recoverability of a long-lived asset or asset group must incorporate the entity's own assumptions about its use of the asset or asset group and must factor in all available evidence.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ASC 360 requires that long-lived assets be tested for recoverability whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Such events include significant under-performance relative to historical internal forecasts or projected future operating results; significant changes in the manner of use of the assets; significant negative industry or economic trends; or significant changes in market capitalization. During the three and six months ended April 3, 2021, no "triggering" events occurred. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Accounting for Impairment of Goodwill</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ASC No. 350, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Intangibles-Goodwill and Other</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> requires goodwill and other intangible assets with indefinite lives to be reviewed for impairment annually, or more frequently if circumstances indicate a possible impairment. We assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, after assessing the qualitative factors, a company determines that it is not more likely than not that the fair value of a reporting unit is less than its carrying value, then performing the impairment test is unnecessary. However, if a company concludes otherwise, then it is required to perform the goodwill impairment test. The Company's impairment test is performed by comparing the fair value of a reporting unit with its carrying value, and determining if the carrying amount exceeds its fair value.</span></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As part of the annual evaluation, the Company performs an impairment test of its goodwill in the fourth quarter of each fiscal year to coincide with the completion of its annual forecasting and refreshing of its business outlook processes. On an ongoing basis, the Company monitors if a “triggering” event has occurred that may have the effect of reducing the fair value of a reporting unit below its respective carrying value. Adverse changes in expected operating results and/or unfavorable changes in other economic factors used to estimate fair values could result in a non-cash impairment charge in the future. </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Impairment assessments inherently involve judgment as to the assumptions made about the expected future cash flows and the impact of market conditions on those assumptions. Future events and changing market conditions may impact the assumptions as to prices, costs, growth rates or other factors that may result in changes in the estimates of future cash flows. Although the Company believes the assumptions that it has used in testing for impairment are reasonable, significant changes in any one of the assumptions could produce a significantly different result. Indicators of potential impairment, including significant and unforeseen customer losses, a significant adverse change in legal factors or in the business climate, a significant adverse action or assessment by a regulator, a significant stock price decline or unanticipated competition may lead the Company to perform interim goodwill impairment assessments. </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For further information on goodwill and other intangible assets, please refer to Note 4 below.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Revenue Recognition</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In accordance with ASC No. 606, Revenue from Contracts with Customers, the Company recognizes revenue when we satisfy performance obligations as evidenced by the transfer of control of our products or services to customers. In general, the Company generates revenue from product sales, either directly to customers or to distributors. In determining whether a contract exists, we evaluate the terms of the agreement, the relationship with the customer or distributor and their ability to pay. </span></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company recognizes revenue from sales of our products, including sales to our distributors, at a point in time, generally upon shipment or delivery to the customer or distributor, depending upon the terms of the sales order. Control is considered transferred when title and risk of loss pass, when the customer becomes obligated to pay and, where applicable, when the customer has accepted the products or upon expiration of the acceptance period. For sales to distributors, payment is due on our standard commercial terms and is not contingent upon resale of the products. </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Our business is subject to contingencies related to customer orders, including:</span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Right of Return: A large portion of our revenue comes from the sale of equipment used in the semiconductor assembly process. Other product sales relate to consumable products, which are sold in high-volume quantities, and are generally </span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">maintained at low stock levels at the customer's facility. Customer returns have historically represented a very small percentage of customer sales on an annual basis.</span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Warranties: Our equipment is generally shipped with a one-year warranty against manufacturing defects. We establish reserves for estimated warranty expense when revenue for the related equipment is recognized. The reserve for estimated warranty expense is based upon historical experience and management's estimate of future expenses, including product parts replacement, freight charges and labor costs expected to be incurred to correct product failures during the warranty period.</span></div><div style="margin-top:6pt;padding-left:36pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Conditions of Acceptance: Sales of our consumable products generally do not have customer acceptance terms. In certain cases, sales of our equipment have customer acceptance clauses which may require the equipment to perform in accordance with customer specifications or when installed at the customer's facility. In such cases, if the terms of acceptance are satisfied at our facility prior to shipment, the revenue for the equipment will be recognized upon shipment. If the terms of acceptance are satisfied at our customers' facilities, the revenue for the equipment will not be recognized until acceptance, which is typically obtained after installation and testing, is received from the customer.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Service revenue is generally recognized over time as the services are performed. For the three and six months ended April 3, 2021, and March 28, 2020, the service revenue is not material. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company measures revenue based on the amount of consideration we expect to be entitled to in exchange for products or services. Any variable consideration such as sales incentives are recognized as a reduction of net revenue at the time of revenue recognition. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The length of time between invoicing and payment is not significant under our payment terms. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Shipping and handling costs billed to customers are recognized in net revenue. Shipping and handling costs paid by the Company are included in cost of sales.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Research and Development </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company charges research and development costs associated with the development of new products to expense when incurred. In certain circumstances, pre-production machines that the Company intends to sell are carried as inventory until sold.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Income Taxes</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In accordance with ASC No. 740, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Income Taxes</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, deferred income taxes are determined using the balance sheet method. The Company records a valuation allowance to reduce its deferred tax assets to the amount expected, on a more likely than not basis, to be realized. While the Company has considered future taxable income and ongoing tax planning strategies in assessing the need for the valuation allowance, if it were to determine that it would be able to realize its deferred tax assets in the future in excess of its net recorded amount, an adjustment to deferred tax assets would increase income in the period when such determination is made. Likewise, should the Company determine it would not be able to realize all or part of its deferred tax assets in the future, an adjustment to deferred tax assets would decrease income in the period when such determination is made.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company determines the amount of unrecognized tax benefit with respect to uncertain tax positions taken or expected to be taken on its income tax returns in accordance with ASC No. 740 Topic 10, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Income Taxes, General</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> (“ASC 740.10”). Under ASC 740.10, the Company utilizes a two-step approach for evaluating uncertain tax positions. Step one, or recognition, requires a company to determine if the weight of available evidence indicates a tax position is more likely than not to be sustained upon examination solely based on its technical merit. Step two, or measurement, is based on the largest amount of benefit, which is more likely than not to be realized on settlement with the taxing authority, including resolution of related appeals or litigation processes, if any.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Equity-Based Compensation </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company accounts for equity-based compensation under the provisions of ASC No. 718,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> Compensation - Stock Compensation</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> (“ASC 718”). ASC 718 requires the recognition of the fair value of the equity-based compensation in net income. Compensation expense associated with Relative TSR Performance Share Units is determined using a Monte-Carlo valuation model, and compensation expense associated with time-based and Growth Performance Share Units is determined based on the number of shares granted and the fair value on the date of grant. Please refer to Note 11 for a summary of the </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">terms of these performance-based awards. The fair value of the Company's stock option awards is estimated using a Black-Scholes option valuation model. The fair value of equity-based awards is amortized over the vesting period of the award and the Company elected to use the straight-line method for awards granted after the adoption of ASC 718. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Earnings per Share </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Earnings per share (“EPS”) are calculated in accordance with ASC No. 260,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> Earnings per Share</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. Basic EPS include only the weighted average number of common shares outstanding during the period. Diluted EPS include the weighted average number of common shares and the dilutive effect of stock options, restricted stock awards, performance share units and restricted share units outstanding during the period, when such instruments are dilutive. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Accounting for Business Acquisitions</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company accounts for business acquisitions in accordance with ASC No. 805,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> Business Combinations</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. The fair value of the net assets acquired and the results of operations of the acquired businesses are included in the Unaudited Consolidated Condensed Financial Statements from the acquisition date forward. The Company is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and results of operations during the reporting period. Estimates are used in accounting for, among other things, the fair value of acquired net operating assets, property, plant and equipment, deferred revenue, intangible assets and related deferred income taxes, useful lives of property, plant and equipment, and amortizable lives of acquired intangible assets. Any excess of the purchase consideration over the identified fair value of the assets and liabilities acquired is recognized as goodwill. The valuation of these tangible and identifiable intangible assets and liabilities is subject to further management review and may change materially between the preliminary allocation and end of the purchase price allocation period. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Restructuring Charges</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Restructuring charges may consist of voluntary or involuntary severance-related charges, asset-related charges and other costs due to exit activities. We recognize voluntary termination benefits when an employee accepts the offered benefit arrangement. We recognize involuntary severance-related charges depending on whether the termination benefits are provided under an ongoing benefit arrangement or under a one-time benefit arrangement. If the former, we recognize the charges once they are probable and the amounts are estimable. If the latter, we recognize the charges once the benefits have been communicated to employees.</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Recent Accounting Pronouncements</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Financial Instruments</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In June 2016, the FASB issued ASU 2016-13, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Financial Instruments - Credit Losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">(Topic 326): Measurement of Credit Losses on Financial Instruments</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. This ASU replaces the impairment methodology in current GAAP, which delays recognition of credit losses until it is probable a loss has been incurred, with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. We adopted this ASU in the first quarter of fiscal 2021. The adoption of this ASU did not have a material impact on our consolidated condensed financial statements. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Collaborative Arrangements</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In November 2018, the FASB issued ASU 2018-18, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Collaborative Arrangements</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> (Topic 808). This ASU clarifies that certain transactions between collaborative arrangement participants should be accounted for as revenue when the collaborative arrangement participant is a customer in the context of a unit of account and precludes recognizing as revenue consideration received from a collaborative arrangement participant if the participant is not a customer. This ASU requires retrospective adoption to the date we adopted ASC 606 by recognizing a cumulative-effect adjustment to the opening balance of retained earnings of the earliest annual period presented. We adopted this ASU in the first quarter of fiscal 2021. The adoption of this ASU did not have a material impact on our consolidated condensed financial statements. </span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Income Taxes</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In December 2019, the FASB issued ASU 2019-12, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Income Taxes </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Topic 740). The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and clarify and amend existing guidance. This ASU will be effective for us in the first quarter of 2022 with early adoption permitted. We are currently evaluating the timing and the effects of the adoption of this ASU on our consolidated condensed financial statements.</span></div>
	us-gaap	Fiscal Period FiscalPeriod	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Fiscal Year</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span>Each of the Company's first three fiscal quarters end on the Saturday that is 13 weeks after the end of the immediately preceding fiscal quarter. The fourth quarter of each fiscal year ends on the Saturday closest to September 30. Fiscal 2021 quarters end on January 2, 2021, April 3, 2021, July 3, 2021 and October 2, 2021. In fiscal years consisting of 53 weeks, the fourth quarter will consist of 14 weeks. Fiscal 2020 quarters ended on December 28, 2019, March 28, 2020, June 27, 2020 and October 3, 2020.
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of consolidated condensed financial statements requires management to make assumptions, estimates and judgments that affect the reported amounts of assets and liabilities, net revenue and expenses during the reporting periods, and disclosures of contingent assets and liabilities as of the date of the consolidated condensed financial statements. On an ongoing basis, management evaluates estimates, including but not limited to, those related to accounts receivable, reserves for excess and obsolete inventory, carrying value and lives of fixed assets, goodwill and intangible assets,</span><span style="color:#ee2724;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the valuation estimates and assessment of impairment and observable price adjustments, income taxes, equity-based compensation expense, and warranties. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable. As a result, management makes judgments regarding the carrying values of the Company's assets and liabilities that are not readily apparent from other sources. Authoritative pronouncements, historical experience and assumptions are used as the basis for making estimates, and on an ongoing basis, management evaluates these estimates. Actual results may differ from these estimates.</span></div>Due to the coronavirus (“COVID-19”) pandemic, there has been uncertainty and disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of April 3, 2021. While there was no material impact to our consolidated condensed financial statements as of and for the quarter ended April 3, 2021, these estimates may change, as new events occur and additional information is obtained, as well as other factors related to COVID-19 that could result in material impacts to our consolidated condensed financial statements in future reporting periods.
CY2021Q2	us-gaap	Short Term Investments ShortTermInvestments	307000000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	342000000	USD
CY2021Q2	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	67746000	USD
CY2020Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	60205000	USD
CY2021Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	57176000	USD
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	39753000	USD
CY2021Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	44689000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	43015000	USD
CY2021Q2	us-gaap	Inventory Gross InventoryGross	169611000	USD
CY2020Q4	us-gaap	Inventory Gross InventoryGross	142973000	USD
CY2021Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	29612000	USD
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	31164000	USD
CY2021Q2	us-gaap	Inventory Net InventoryNet	139999000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	111809000	USD
CY2021Q2	us-gaap	Land Land	2182000	USD
CY2020Q4	us-gaap	Land Land	2182000	USD
CY2021Q2	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	23171000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	22830000	USD
CY2021Q2	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	23678000	USD
CY2020Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	23111000	USD
CY2021Q2	klic	Equipment And Software Gross EquipmentAndSoftwareGross	39434000	USD
CY2020Q4	klic	Equipment And Software Gross EquipmentAndSoftwareGross	38524000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	85948000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	80953000	USD
CY2021Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	8559000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	7111000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	182972000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	174711000	USD
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	121007000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	115564000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	61965000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	59147000	USD
CY2021Q2	srt	Payables To Customers PayablesToCustomers	47265000	USD
CY2020Q4	srt	Payables To Customers PayablesToCustomers	22759000	USD
CY2021Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	36879000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	37237000	USD
CY2021Q2	klic	Accrued Liabilities For Commission And Professional Fees Current AccruedLiabilitiesForCommissionAndProfessionalFeesCurrent	8688000	USD
CY2020Q4	klic	Accrued Liabilities For Commission And Professional Fees Current AccruedLiabilitiesForCommissionAndProfessionalFeesCurrent	7397000	USD
CY2021Q2	us-gaap	Dividends Payable Current DividendsPayableCurrent	4075000	USD
CY2020Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	2716000	USD
CY2021Q2	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	3000	USD
CY2020Q4	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	449000	USD
CY2021Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	7476000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	6204000	USD
CY2021Q2	klic	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	104386000	USD
CY2020Q4	klic	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	76762000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	56695000	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	16799000	USD
	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	54000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	73548000	USD
CY2021Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	46046000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	37972000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	2629000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6457000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6356000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6356000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6356000	USD
CY2021Q2	klic	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	17892000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46046000	USD
CY2021Q2	us-gaap	Cash Cash	148778000	USD
CY2021Q2	klic	Cash Estimated Fair Value CashEstimatedFairValue	148778000	USD
CY2021Q2	klic	Cashand Cash Equivalents Amortized Cost CashandCashEquivalentsAmortizedCost	257351000	USD
CY2021Q2	klic	Cashand Cash Equivalents Gross Unrealized Gain CashandCashEquivalentsGrossUnrealizedGain	0	USD
CY2021Q2	klic	Cashand Cash Equivalents Gross Unrealized Loss CashandCashEquivalentsGrossUnrealizedLoss	18000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	257333000	USD
CY2021Q2	us-gaap	Short Term Investments ShortTermInvestments	307000000	USD
CY2021Q2	klic	Availableforsale Securities Shortterm Investments Gross Unrealized Gain AvailableforsaleSecuritiesShorttermInvestmentsGrossUnrealizedGain	0	USD
CY2021Q2	klic	Availableforsale Securities Shortterm Investments Gross Unrealized Loss AvailableforsaleSecuritiesShorttermInvestmentsGrossUnrealizedLoss	0	USD
CY2021Q2	klic	Availableforsale Securities Shortterm Investments Fair Value Disclosure AvailableforsaleSecuritiesShorttermInvestmentsFairValueDisclosure	307000000	USD
CY2021Q2	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestments	564351000	USD
CY2021Q2	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Gross Unrealized Gain CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedGain	0	USD
CY2021Q2	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Gross Unrealized Loss CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss	18000	USD
CY2021Q2	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Fair Value Disclosure CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsFairValueDisclosure	564333000	USD
CY2020Q4	us-gaap	Cash Cash	42997000	USD
CY2020Q4	klic	Cash Unrealized Gains CashUnrealizedGains	0	USD
CY2020Q4	klic	Cash Unrealized Losses CashUnrealizedLosses	0	USD
CY2020Q4	klic	Cash Estimated Fair Value CashEstimatedFairValue	42997000	USD
CY2020Q4	klic	Cashand Cash Equivalents Amortized Cost CashandCashEquivalentsAmortizedCost	188137000	USD
CY2020Q4	klic	Cashand Cash Equivalents Gross Unrealized Gain CashandCashEquivalentsGrossUnrealizedGain	0	USD
CY2020Q4	klic	Cashand Cash Equivalents Gross Unrealized Loss CashandCashEquivalentsGrossUnrealizedLoss	10000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	188127000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	342000000	USD
CY2020Q4	klic	Availableforsale Securities Shortterm Investments Gross Unrealized Gain AvailableforsaleSecuritiesShorttermInvestmentsGrossUnrealizedGain	0	USD
CY2020Q4	klic	Availableforsale Securities Shortterm Investments Gross Unrealized Loss AvailableforsaleSecuritiesShorttermInvestmentsGrossUnrealizedLoss	0	USD
CY2020Q4	klic	Availableforsale Securities Shortterm Investments Fair Value Disclosure AvailableforsaleSecuritiesShorttermInvestmentsFairValueDisclosure	342000000	USD
CY2020Q4	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestments	530137000	USD
CY2020Q4	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Gross Unrealized Gain CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedGain	0	USD
CY2020Q4	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Gross Unrealized Loss CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss	10000	USD
CY2020Q4	klic	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalentsand Short Term Investments Fair Value Disclosure CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsFairValueDisclosure	530127000	USD
CY2021Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	6371000	USD
CY2020Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	6321000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1214000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni And Without Readily Determinable Fair Value EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValue	6371000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni And Without Readily Determinable Fair Value EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValue	7535000	USD
	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	1000000.0	USD
CY2021Q2	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	49388000	USD
CY2020Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	37264000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimate Of Time To Transfer1 DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimateOfTimeToTransfer1	P12M
	klic	Leases Numberof Options To Extend LeasesNumberofOptionsToExtend	0	extend_options
CY2021Q2	us-gaap	Lease Cost LeaseCost	1932000	USD
CY2020Q1	us-gaap	Lease Cost LeaseCost	1668000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3459000	USD
	us-gaap	Lease Cost LeaseCost	3799000	USD
	us-gaap	Lease Cost LeaseCost	3384000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	3558000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	3131000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y6M
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.049
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.048
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	4706000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6581000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6408000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2332000	USD
CY2021Q2	klic	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	1832000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	25318000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2406000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	22912000	USD
CY2021Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6171000	USD
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	16741000	USD
	klic	Defined Benefit Plan Employer Contribution Percentage Match Of Compensation DefinedBenefitPlanEmployerContributionPercentageMatchOfCompensation	employee contributions and matching Company contributions from 4% to 6%
CY2021Q2	us-gaap	Pension Contributions PensionContributions	447000	USD
CY2020Q1	us-gaap	Pension Contributions PensionContributions	352000	USD
	us-gaap	Pension Contributions PensionContributions	866000	USD
	us-gaap	Pension Contributions PensionContributions	709000	USD
CY2017Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	100000000	USD
CY2018Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	200000000	USD
CY2019Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	300000000	USD
CY2020Q3	klic	Stock Repurchase Program Authorized Amount Additional Amount StockRepurchaseProgramAuthorizedAmountAdditionalAmount	100000000	USD
CY2020Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	400000000	USD
CY2021Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	23000.0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	71000.0	shares
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1100000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2300000	USD
CY2021Q2	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	139800000	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
CY2021Q2	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	8700000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	16100000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	1996000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	10000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3008000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3088000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	13000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	557000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-999000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2521000	USD
	klic	Relative Total Shareholder Return Average Stock Price Calculation Period RelativeTotalShareholderReturnAverageStockPriceCalculationPeriod	P90D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	15000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	11000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	704000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	725000	shares
CY2021Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3963000	USD
CY2020Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3722000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7364000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7331000	USD
CY2021Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3963000	USD
CY2020Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3722000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7364000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7331000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	4212000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	2588000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	2958000	USD
CY2019Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1896000	USD
CY2021Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-10418000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-2459000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-20268000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-5817000	USD
CY2021Q2	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	11994000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	10229000	USD
	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	23098000	USD
	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	14279000	USD
CY2021Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	5788000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	10358000	USD
CY2021Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	5788000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	10358000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	71320000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	71320000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	11888000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	11888000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62068000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62068000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63679000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63679000	shares
CY2021Q2	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	1169000	USD
CY2020Q1	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	540000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63237000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	64219000	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2021Q2	klic	Earnings Per Share Diluted Adjustment EarningsPerShareDilutedAdjustment	-0.02
CY2020Q1	klic	Earnings Per Share Diluted Adjustment EarningsPerShareDilutedAdjustment	0
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.13
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
	us-gaap	Net Income Loss NetIncomeLoss	119683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	119683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25365000	USD
	us-gaap	Net Income Loss NetIncomeLoss	25365000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62023000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62023000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63675000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63675000	shares
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	1095000	USD
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	591000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63118000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	64266000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
	klic	Earnings Per Share Diluted Adjustment EarningsPerShareDilutedAdjustment	-0.03
	klic	Earnings Per Share Diluted Adjustment EarningsPerShareDilutedAdjustment	-0.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.90
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12212000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1162000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18510000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3295000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.146
CY2020Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.089
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.134
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.115
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021Q2	us-gaap	Revenues Revenues	340163000	USD
CY2020Q1	us-gaap	Revenues Revenues	150741000	USD
	us-gaap	Revenues Revenues	608020000	USD
	us-gaap	Revenues Revenues	295038000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	83114000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	11076000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	137156000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	24490000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	5121000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2775000	USD
	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	8808000	USD
	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	5099000	USD
CY2021Q2	us-gaap	Depreciation Depreciation	3245000	USD
CY2020Q1	us-gaap	Depreciation Depreciation	2949000	USD
	us-gaap	Depreciation Depreciation	6434000	USD
	us-gaap	Depreciation Depreciation	5891000	USD
CY2021Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1355000	USD
CY2020Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1820000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3313000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3637000	USD
CY2021Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	12136000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	14714000	USD
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9576000	USD
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	14185000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	6029000	USD
CY2020Q1	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2923000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	11329000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	6418000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2591000	USD
CY2020Q1	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	3269000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	5331000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	6235000	USD
CY2021Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	15574000	USD
CY2020Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	14368000	USD
CY2021Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	15574000	USD
CY2020Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	14368000	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due InventoryPurchaseObligationFutureMinimumPaymentsDue	549024000	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due Current InventoryPurchaseObligationFutureMinimumPaymentsDueCurrent	239818000	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due In Two Years InventoryPurchaseObligationFutureMinimumPaymentsDueInTwoYears	309206000	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due In Three Years InventoryPurchaseObligationFutureMinimumPaymentsDueInThreeYears	0	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due In Four Years InventoryPurchaseObligationFutureMinimumPaymentsDueInFourYears	0	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due In Five Years InventoryPurchaseObligationFutureMinimumPaymentsDueInFiveYears	0	USD
CY2021Q2	klic	Inventory Purchase Obligation Future Minimum Payments Due Thereafter InventoryPurchaseObligationFutureMinimumPaymentsDueThereafter	0	USD

Files In Submission

Name	View Source	Status
0000056978-21-000068-index-headers.html	Edgar Link	pending
0000056978-21-000068-index.html	Edgar Link	pending
0000056978-21-000068.txt	Edgar Link	pending
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a10qq22021ex311.htm	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
klic-20210403.htm	Edgar Link	pending
klic-20210403.xsd	Edgar Link	pending
klic-20210403_cal.xml	Edgar Link	unprocessable
klic-20210403_def.xml	Edgar Link	unprocessable
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$KLIC
Kulicke and Soffa Industries Inc Stock $klic

2021 Q2 Form 10-Q Financial Statement

#000005697821000068 Filed on May 06, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLIC Kulicke and Soffa Industries Inc Stock $klic

2021 Q2 Form 10-Q Financial Statement

#000005697821000068 Filed on May 06, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KLIC
Kulicke and Soffa Industries Inc Stock $klic