$CGNX
COGNEX CORP Stock $cgnx

$cgnx Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000085120521000024 Filed on November 04, 2021

Income Statement

Concept	2021 Q4	2020 Q3	2020 Q2
Revenue	$284.8M	$251.1M	$169.1M
YoY Change	27.38%	36.96%	-15.05%
Cost Of Revenue	$85.71M	$59.74M	$50.32M
YoY Change	55.28%	25.42%	-1.27%
Gross Profit	$199.1M	$191.3M	$118.8M
YoY Change	18.21%	41.0%	-19.79%
Gross Profit Margin	69.91%	76.21%	70.24%
Selling, General & Admin	$77.11M	$64.21M	$60.15M
YoY Change	4.07%	-0.43%	-11.86%
% of Gross Profit	38.72%	33.56%	50.64%
Research & Development	$34.48M	$30.24M	$30.40M
YoY Change	0.22%	7.56%	8.26%
% of Gross Profit	17.31%	15.8%	25.59%
Depreciation & Amortization	$5.051M	$6.100M	$6.800M
YoY Change	-23.47%	3.39%	13.33%
% of Gross Profit	2.54%	3.19%	5.73%
Operating Expenses	$111.6M	$94.45M	$90.55M
YoY Change	2.94%	1.99%	-5.99%
Operating Profit	$87.55M	$96.64M	-$6.142M
YoY Change	48.17%	124.25%	-111.87%
Interest Expense	$1.162M	$4.800M	$3.600M
YoY Change	-80.63%	26.32%	-33.33%
% of Operating Profit	1.33%	4.97%
Other Income/Expense, Net	-$125.0K	-$173.0K	$203.0K
YoY Change	-37.5%	-137.94%	-240.97%
Pretax Income	$88.58M	$101.3M	-$2.312M
YoY Change	36.49%	113.88%	-104.06%
Income Tax	$9.684M	$13.80M	-$1.170M
% Of Pretax Income	10.93%	13.62%
Net Earnings	$78.90M	$87.51M	-$1.142M
YoY Change	13.78%	109.92%	-102.34%
Net Earnings / Revenue	27.7%	34.85%	-0.68%
Basic Earnings Per Share		$0.50	-$0.01
Diluted Earnings Per Share	$0.44	$0.49	-$0.01
COMMON SHARES
Basic Shares Outstanding	176.8M shares	173.9M shares	172.3M shares
Diluted Shares Outstanding	180.3M shares	177.1M shares	172.3M shares

Balance Sheet

Concept	2021 Q4	2020 Q3	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$323.6M	$393.7M	$429.1M
YoY Change	-13.08%	-4.85%	-5.4%
Cash & Equivalents	$186.2M	$298.4M	$286.0M
Short-Term Investments	$137.5M	$95.37M	$143.1M
Other Short-Term Assets	$57.72M	$35.50M	$49.80M
YoY Change	61.67%	26.33%	44.77%
Inventory	$113.1M	$53.86M	$52.95M
Prepaid Expenses
Receivables	$130.3M	$127.8M	$111.7M
Other Receivables	$3.481M	$2.000M	$2.000M
Total Short-Term Assets	$639.8M	$628.1M	$646.5M
YoY Change	6.33%	0.38%	-4.77%
LONG-TERM ASSETS
Property, Plant & Equipment	$77.55M	$81.23M	$83.94M
YoY Change	-2.05%	-8.15%	-6.05%
Goodwill	$241.7M	$243.1M	$242.4M
YoY Change	-0.97%	114.76%	114.15%
Intangibles	$11.89M
YoY Change	-23.57%
Long-Term Investments	$592.8M	$619.3M	$467.1M
YoY Change	50.04%	22.73%	14.49%
Other Assets	$7.242M	$7.684M	$8.042M
YoY Change	-7.08%	44.44%	48.27%
Total Long-Term Assets	$1.364B	$1.432B	$1.288B
YoY Change	13.75%	87.32%	92.0%
TOTAL ASSETS
Total Short-Term Assets	$639.8M	$628.1M	$646.5M
Total Long-Term Assets	$1.364B	$1.432B	$1.288B
Total Assets	$2.004B	$2.061B	$1.935B
YoY Change	11.27%	48.19%	43.33%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$44.05M	$21.46M	$18.00M
YoY Change	170.75%	68.13%	53.46%
Accrued Expenses	$92.43M	$68.35M	$66.26M
YoY Change	19.63%	40.75%	36.04%
Deferred Revenue	$35.74M	$33.72M	$46.74M
YoY Change	68.01%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$188.6M	$139.4M	$144.6M
YoY Change	42.55%	71.64%	68.74%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$15.48M	$8.292M	$5.085M
YoY Change	55.4%	1014.52%	308.76%
Total Long-Term Liabilities	$15.48M	$8.292M	$5.085M
YoY Change	55.4%	1014.52%	308.76%
TOTAL LIABILITIES
Total Short-Term Liabilities	$188.6M	$139.4M	$144.6M
Total Long-Term Liabilities	$15.48M	$8.292M	$5.085M
Total Liabilities	$573.6M	$554.7M	$558.4M
YoY Change	6.51%	266.77%	252.78%
SHAREHOLDERS EQUITY
Retained Earnings	$562.9M	$780.5M	$702.6M
YoY Change	15.37%	14.38%	8.22%
Common Stock	$914.8M	$762.8M	$710.4M
YoY Change	13.25%	28.33%	22.72%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.430B	$1.506B	$1.376B
YoY Change
Total Liabilities & Shareholders Equity	$2.004B	$2.061B	$1.935B
YoY Change	11.27%	48.19%	43.33%

Cashflow Statement

Concept	2021 Q4	2020 Q3	2020 Q2
OPERATING ACTIVITIES
Net Income	$78.90M	$87.51M	-$1.142M
YoY Change	13.78%	109.92%	-102.34%
Depreciation, Depletion And Amortization	$5.051M	$6.100M	$6.800M
YoY Change	-23.47%	3.39%	13.33%
Cash From Operating Activities	$64.13M	$80.50M	$17.00M
YoY Change	-22.64%	23.09%	-71.14%
INVESTING ACTIVITIES
Capital Expenditures	-$4.139M	-$2.800M	-$3.900M
YoY Change	18.26%	-37.78%	0.0%
Acquisitions
YoY Change
Other Investing Activities	-$49.35M	-$104.4M	$7.600M
YoY Change	-122.75%	340.51%	-159.84%
Cash From Investing Activities	-$53.49M	-$107.2M	$3.700M
YoY Change	-125.07%	278.8%	-122.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-23.33M	33.60M	27.80M
YoY Change	-92.88%	-1150.0%	-147.77%
NET CHANGE
Cash From Operating Activities	64.13M	80.50M	17.00M
Cash From Investing Activities	-53.49M	-107.2M	3.700M
Cash From Financing Activities	-23.33M	33.60M	27.80M
Net Change In Cash	-12.69M	6.900M	48.50M
YoY Change	-59.57%	-79.65%	-405.03%
FREE CASH FLOW
Cash From Operating Activities	$64.13M	$80.50M	$17.00M
Capital Expenditures	-$4.139M	-$2.800M	-$3.900M
Free Cash Flow	$68.27M	$83.30M	$20.90M
YoY Change	-20.98%	19.17%	-66.72%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000851205
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y
	dei	Document Type DocumentType	10-Q
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-34218
	dei	Entity Registrant Name EntityRegistrantName	COGNEX CORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2713778
	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Vision Drive
	dei	Entity Address City Or Town EntityAddressCityOrTown	Natick
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	01760
	dei	City Area Code CityAreaCode	508
	dei	Local Phone Number LocalPhoneNumber	650-3000
	dei	Security12b Title Security12bTitle	Common Stock, par value $.002 per share
	dei	Trading Symbol TradingSymbol	CGNX
CY2021Q4	us-gaap	Gross Profit GrossProfit	199136000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	191332000	USD
	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
	dei	Document Period End Date DocumentPeriodEndDate	2021-10-03
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	176799003	shares
CY2021Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	284848000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251073000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	793033000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	587405000	USD
CY2021Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	85712000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	59741000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	208189000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	151261000	USD
	us-gaap	Gross Profit GrossProfit	584844000	USD
	us-gaap	Gross Profit GrossProfit	436144000	USD
CY2021Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	34476000	USD
CY2020Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	30240000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	99883000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	96583000	USD
CY2021Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	77113000	USD
CY2020Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	64206000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	226380000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	193497000	USD
CY2021Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2020Q3	us-gaap	Restructuring Charges RestructuringCharges	251000	USD
	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	15049000	USD
CY2021Q4	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020Q3	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	258581000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	19571000	USD
CY2021Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	87547000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	96635000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	111444000	USD
CY2021Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-586000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2357000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2233000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-310000	USD
CY2021Q4	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	1748000	USD
CY2020Q3	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	2490000	USD
	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	5025000	USD
	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	11010000	USD
CY2021Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-125000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-173000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-420000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-153000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88584000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	101309000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	260953000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	121991000	USD
CY2021Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9684000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13803000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34607000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15150000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	78900000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	87506000	USD
	us-gaap	Net Income Loss NetIncomeLoss	226346000	USD
	us-gaap	Net Income Loss NetIncomeLoss	106841000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.45
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.50
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.28
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.62
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.26
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2021Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	176812000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173943000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	176572000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	172881000	shares
CY2021Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180342000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	177138000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180109000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	176038000	shares
CY2021Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.060
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.055
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.180
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.165
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	78900000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	87506000	USD
	us-gaap	Net Income Loss NetIncomeLoss	226346000	USD
	us-gaap	Net Income Loss NetIncomeLoss	106841000	USD
CY2021Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-162000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	2855000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-808000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1067000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2308000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	6282000	USD
CY2021Q4	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	0	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	0	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	-75000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	786000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	3591000	USD
CY2021Q4	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-540000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-3094000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-2704000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	2766000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2098000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3364000	USD
CY2021Q4	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2136000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2098000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-5243000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3364000	USD
CY2021Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2676000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-996000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-7947000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-598000	USD
CY2021Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	76224000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	86510000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	218399000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	106243000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	203479000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	269073000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Current DebtSecuritiesAvailableForSaleAmortizedCostCurrent	188349000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Current DebtSecuritiesAvailableForSaleAmortizedCostCurrent	102258000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Current DebtSecuritiesAvailableForSaleAllowanceForCreditLossCurrent	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Current DebtSecuritiesAvailableForSaleAllowanceForCreditLossCurrent	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	189113000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	103240000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	792000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	831000	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	129784000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	125696000	USD
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	7325000	USD
CY2020Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	5632000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	81170000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	60830000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	61196000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	37220000	USD
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CY2020Q4	us-gaap	Assets Current AssetsCurrent	601691000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Noncurrent DebtSecuritiesAvailableForSaleAmortizedCostNoncurrent	591378000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Noncurrent DebtSecuritiesAvailableForSaleAmortizedCostNoncurrent	390417000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Noncurrent DebtSecuritiesAvailableForSaleAllowanceForCreditLossNoncurrent	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Noncurrent DebtSecuritiesAvailableForSaleAllowanceForCreditLossNoncurrent	0	USD
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	592794000	USD
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	395125000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	76882000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	79173000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	24154000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	22582000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	241799000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	244078000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12782000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15555000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	420962000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	434704000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7363000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7794000	USD
CY2021Q4	us-gaap	Assets Assets	2048803000	USD
CY2020Q4	us-gaap	Assets Assets	1800702000	USD
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CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	16270000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	80337000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	77264000	USD
CY2021Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	12271000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	9379000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	37843000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	21274000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7889000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8110000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	165137000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	132297000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18922000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18120000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	302019000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	314952000	USD
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	14805000	USD
CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	14257000	USD
CY2021Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	40963000	USD
CY2020Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	48915000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	13996000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	9959000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	555842000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	538500000	USD
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	400000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	400000	shares
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CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
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CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.002
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.002
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	300000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	300000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	176799000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	176799000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	175790000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	175790000	shares
CY2021Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	354000	USD
CY2020Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	352000	USD
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	900190000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	807739000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	634165000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	487912000	USD
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CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-33801000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1492961000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1262202000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2048803000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1800702000	USD
	us-gaap	Net Income Loss NetIncomeLoss	226346000	USD
	us-gaap	Net Income Loss NetIncomeLoss	106841000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	33353000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	32076000	USD
	us-gaap	Depreciation Depreciation	12641000	USD
	us-gaap	Depreciation Depreciation	16467000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-4000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-1654000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2773000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3437000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	19571000	USD
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	cgnx	Excess And Obsolete Inventory Charges ExcessAndObsoleteInventoryCharges	9386000	USD
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	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	2534000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3316000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-765000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	87000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	3591000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	0	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-75000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
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	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1411000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-3194000	USD
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	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-10606000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	22534000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	3065000	USD
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	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3587000	USD
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	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	16751000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	19066000	USD
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CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	269073000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	171431000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	203479000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	298356000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1429454000	USD
CY2021Q4	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	14694000	USD
CY2021Q4	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	27417000	USD
CY2021Q4	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10614000	USD
CY2021Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.060
CY2021Q4	us-gaap	Dividends Cash DividendsCash	10608000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	78900000	USD
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CY2021Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	19000	USD
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CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1492961000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1376478000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	43155000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9268000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.055
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CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1505829000	USD
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CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1492961000	USD
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CY2020Q2	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	19571000	USD
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CY2021Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	3616000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	203479000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	269073000	USD
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CY2020Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	103240000	USD
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	592794000	USD
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	395125000	USD
CY2021Q4	cgnx	Cash Cash Equivalents Short Term And Long Term Investments CashCashEquivalentsShortTermAndLongTermInvestments	985386000	USD
CY2020Q4	cgnx	Cash Cash Equivalents Short Term And Long Term Investments CashCashEquivalentsShortTermAndLongTermInvestments	767438000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	779727000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2990000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	810000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	781907000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	225218000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	810000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	225218000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	810000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Period Increase Decrease DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Period Increase Decrease DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Period Increase Decrease DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Period Increase Decrease DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease	160000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	85000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	19000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	87000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	787000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	3613000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	1000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	22000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	189113000	USD
CY2021Q4	cgnx	Available For Sale Securities Debt Maturities After One Year Before Two Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearBeforeTwoYearsFairValue	278263000	USD
CY2021Q4	cgnx	Available For Sale Securities Debt Maturities After Two Years Before Three Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTwoYearsBeforeThreeYearsFairValue	157832000	USD
CY2021Q4	cgnx	Available For Sale Securities Debt Maturities After Three Years Before Four Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearsBeforeFourYearsFairValue	108424000	USD
CY2021Q4	cgnx	Available For Sale Securities Debt Maturities After Four Years Before Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFourYearsBeforeFiveYearsFairValue	48275000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	781907000	USD
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	2975000	USD
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	32598000	USD
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	26800000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	4780000	USD
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	45597000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	29250000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	81170000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	60830000	USD
CY2021Q4	cgnx	Excess And Obsolete Inventory Charges ExcessAndObsoleteInventoryCharges	304000	USD
	cgnx	Excess And Obsolete Inventory Charges ExcessAndObsoleteInventoryCharges	2120000	USD
CY2020Q3	cgnx	Excess And Obsolete Inventory Charges ExcessAndObsoleteInventoryCharges	603000	USD
	cgnx	Excess And Obsolete Inventory Charges ExcessAndObsoleteInventoryCharges	9386000	USD
CY2021Q4	us-gaap	Operating Lease Cost OperatingLeaseCost	2068000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	6091000	USD
CY2021Q4	us-gaap	Operating Lease Payments OperatingLeasePayments	2079000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	6154000	USD
CY2021Q4	us-gaap	Lease Cost LeaseCost	36000	USD
CY2020Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	2041000	USD
	us-gaap	Lease Cost LeaseCost	114000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	2047000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	6100000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	5995000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	22000	USD
	us-gaap	Lease Cost LeaseCost	84000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2348000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8221000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6588000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3526000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2033000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1297000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5160000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	29173000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26811000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26230000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.035
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y2M12D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y1M6D
CY2020	cgnx	Lessee Operating Lease Number Of Closed Properties LesseeOperatingLeaseNumberOfClosedProperties	11	Employees
CY2020Q2	cgnx	Operating Lease Right Of Use Asset Carrying Value Of Impaired Asset OperatingLeaseRightOfUseAssetCarryingValueOfImpairedAsset	0	USD
CY2020Q2	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	2534000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	244078000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-2279000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	241799000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	73675000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	60893000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12782000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	73675000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	58120000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15555000	USD
CY2020Q2	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	19571000	USD
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	5406000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2528000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2517000	USD
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	5417000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	793033000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	129000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	265000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	88000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	38000	USD
CY2021Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2020Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2021Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2020Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	129000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	265000	USD
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	88000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	38000	USD
CY2021Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	284848000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251073000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	793033000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	587405000	USD
CY2021Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	284848000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251073000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	587405000	USD
CY2021Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	13308000	USD
CY2020Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	6846000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	831000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	39000	USD
	cgnx	Accounts Receivable Allowance For Credit Loss Foreign Exchange Rate Adjustment AccountsReceivableAllowanceForCreditLossForeignExchangeRateAdjustment	0	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	792000	USD
CY2020Q4	us-gaap	Deferred Revenue DeferredRevenue	21274000	USD
	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	33888000	USD
	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	17130000	USD
	cgnx	Deferred Revenue Foreign Currency Exchange Adjustment DeferredRevenueForeignCurrencyExchangeAdjustment	-189000	USD
CY2021Q4	us-gaap	Deferred Revenue DeferredRevenue	37843000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8970000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	44.73
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	549000	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	88.80
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1582000	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	37.70
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	225000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	50.29
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7712000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	49.15
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y9M14D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	252476000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3290000	shares
CY2021Q4	cgnx	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateIntrinsicValue	139215000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	39.03
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y6M21D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	7157000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	48.36
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P6Y8M12D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	239568000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.014
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.013
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.016
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0028
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1524000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0027
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0043
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.39
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.39
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.37
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y1M6D
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	35.64
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	33.78
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	18.52
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021Q4	cgnx	Shares Based Compensation Arrangement By Shares Based Payment Award Options Exercisable Intrinsic Value SharesBasedCompensationArrangementBySharesBasedPaymentAwardOptionsExercisableIntrinsicValue	21415000	USD
	cgnx	Shares Based Compensation Arrangement By Shares Based Payment Award Options Exercisable Intrinsic Value SharesBasedCompensationArrangementBySharesBasedPaymentAwardOptionsExercisableIntrinsicValue	75363000	USD
CY2020Q3	cgnx	Shares Based Compensation Arrangement By Shares Based Payment Award Options Exercisable Intrinsic Value SharesBasedCompensationArrangementBySharesBasedPaymentAwardOptionsExercisableIntrinsicValue	62787000	USD
	cgnx	Shares Based Compensation Arrangement By Shares Based Payment Award Options Exercisable Intrinsic Value SharesBasedCompensationArrangementBySharesBasedPaymentAwardOptionsExercisableIntrinsicValue	116600000	USD
CY2021Q4	cgnx	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedFairValue	1498000	USD
	cgnx	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedFairValue	38928000	USD
CY2020Q3	cgnx	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedFairValue	1331000	USD
	cgnx	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedFairValue	39282000	USD
CY2021Q4	cgnx	Number Of Groups Within Employee Population NumberOfGroupsWithinEmployeePopulation	2	group
CY2021Q4	cgnx	Estimated Forfeiture Rate For Unvested Options For Senior Management EstimatedForfeitureRateForUnvestedOptionsForSeniorManagement	0.08
CY2021Q4	cgnx	Estimated Forfeiture Rate For Unvested Options For All Non Senior Management EstimatedForfeitureRateForUnvestedOptionsForAllNonSeniorManagement	0.12
	cgnx	Increase In Compensation Expense Due To Revised Estimated Forfeiture Rates IncreaseInCompensationExpenseDueToRevisedEstimatedForfeitureRates	255000	USD
	cgnx	Increase In Compensation Expense Due To Revised Estimated Forfeiture Rates IncreaseInCompensationExpenseDueToRevisedEstimatedForfeitureRates	1787000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	56579000	USD
	cgnx	Employee Service Sharebased Compensation Nonvested Awards Compensation Notyet Recognized Periodfor Recognition EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationNotyetRecognizedPeriodforRecognition	P1Y7M6D
CY2021Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10614000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1637000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33353000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5101000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9268000	USD
CY2021Q4	cgnx	Employee Service Share Based Compensation Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationRecognizedPeriodCostsCapitalizedAmount	0	USD
CY2020Q4	cgnx	Employee Service Share Based Compensation Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationRecognizedPeriodCostsCapitalizedAmount	0	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	32076000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5365000	USD
CY2020Q3	us-gaap	Share Based Compensation ShareBasedCompensation	-1401000	USD
CY2021Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10614000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9268000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33353000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	32076000	USD
CY2021Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	30357000	USD
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.02
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.02
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.01
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.01
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.01
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.01
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.09
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.03
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.01
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.03
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.01
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.02
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.01
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.02
CY2021Q4	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.11
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.13
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.12
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.04
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.09
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.03
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.01
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.03
	cgnx	Effective Income Tax Rate Reconciliation Excluding Discrete Items Percent EffectiveIncomeTaxRateReconciliationExcludingDiscreteItemsPercent	0.18
CY2021Q4	cgnx	Effective Income Tax Rate Reconciliation Excluding Discrete Items Percent EffectiveIncomeTaxRateReconciliationExcludingDiscreteItemsPercent	0.18
	cgnx	Effective Income Tax Rate Reconciliation Excluding Discrete Items Percent EffectiveIncomeTaxRateReconciliationExcludingDiscreteItemsPercent	0.18
CY2020Q3	cgnx	Effective Income Tax Rate Reconciliation Excluding Discrete Items Percent EffectiveIncomeTaxRateReconciliationExcludingDiscreteItemsPercent	0.18
	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	495000	USD
	cgnx	Increase Decrease Interest And Penalties IncreaseDecreaseInterestAndPenalties	450000	USD
CY2021Q4	cgnx	Liability For Uncertain Tax Positions LiabilityForUncertainTaxPositions	15833000	USD
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	14805000	USD
	us-gaap	Increase Decrease In Deferred Liabilities IncreaseDecreaseInDeferredLiabilities	1028000	USD
CY2021Q4	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	648000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
CY2021Q4	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
	cgnx	Taxyearsopentoexaminationby Internal Revenue Service TaxyearsopentoexaminationbyInternalRevenueService	2017 through 2020
	cgnx	Income Tax Examination Years Under Examination Other Entities IncomeTaxExaminationYearsUnderExaminationOtherEntities	2016 through 2020
CY2021Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	176812000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173943000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	176572000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	172881000	shares
CY2021Q4	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3530000	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3195000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3537000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3157000	shares
CY2021Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180342000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	177138000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	180109000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	176038000	shares
CY2020Q2	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated Inception To Date Percent RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDatePercent	0.08
CY2021Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2020Q3	us-gaap	Restructuring Charges RestructuringCharges	251000	USD
	us-gaap	Restructuring Charges RestructuringCharges	15049000	USD
CY2020Q2	us-gaap	Restructuring And Related Cost Expected Number Of Positions Eliminated RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated	181	Employees

Files In Submission

Name	View Source	Status
0000851205-21-000024-index-headers.html	Edgar Link	pending
0000851205-21-000024-index.html	Edgar Link	pending
0000851205-21-000024.txt	Edgar Link	pending
0000851205-21-000024-xbrl.zip	Edgar Link	pending
a1032021-10qxexhibit311.htm	Edgar Link	pending
a1032021-10qxexhibit312.htm	Edgar Link	pending
a1032021-10qxexhibit321.htm	Edgar Link	pending
a1032021-10qxexhibit322.htm	Edgar Link	pending
cgnx-20211003.htm	Edgar Link	pending
cgnx-20211003.xsd	Edgar Link	pending
cgnx-20211003_cal.xml	Edgar Link	unprocessable
cgnx-20211003_def.xml	Edgar Link	unprocessable
cgnx-20211003_htm.xml	Edgar Link	completed
cgnx-20211003_lab.xml	Edgar Link	unprocessable
cgnx-20211003_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CGNX
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2021 Q4 Form 10-Q Financial Statement

#000085120521000024 Filed on November 04, 2021

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$CGNX COGNEX CORP Stock $cgnx

2021 Q4 Form 10-Q Financial Statement

#000085120521000024 Filed on November 04, 2021

Income Statement

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Files In Submission

$CGNX
COGNEX CORP Stock $cgnx