$GKOS
GLAUKOS Corp Stock $gkos

$gkos Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000155837021002061 Filed on March 01, 2021

Income Statement

Concept	2019 Q4	2019 Q3	2019 Q2
Revenue	$65.85M	$58.51M	$58.60M
YoY Change	21.77%	33.25%	35.77%
Cost Of Revenue	$15.90M	$7.703M	$7.870M
YoY Change	123.43%	28.15%	27.76%
Gross Profit	$49.95M	$50.81M	$50.73M
YoY Change	6.36%	34.06%	37.1%
Gross Profit Margin	75.85%	86.83%	86.57%
Selling, General & Admin	$59.61M	$44.44M	$37.66M
YoY Change	85.68%	40.5%	31.49%
% of Gross Profit	119.35%	87.48%	74.23%
Research & Development	$20.03M	$17.28M	$17.07M
YoY Change	54.6%	30.87%	35.35%
% of Gross Profit	40.11%	34.01%	33.65%
Depreciation & Amortization	$3.640M	$940.0K	$890.0K
YoY Change	203.33%	-44.71%	-47.34%
% of Gross Profit	7.29%	1.85%	1.75%
Operating Expenses	$79.64M	$63.22M	$56.97M
YoY Change	76.74%	41.01%	38.11%
Operating Profit	-$29.70M	-$12.42M	-$6.240M
YoY Change	-1665.47%	78.97%	46.89%
Interest Expense	$580.0K	-$850.0K	$90.00K
YoY Change	-14.71%	-246.55%	-82.35%
% of Operating Profit
Other Income/Expense, Net	$437.0K	-$904.0K	$3.000K
YoY Change	6.07%	-356.09%	-100.26%
Pretax Income	-$29.26M	-$13.32M	-$6.237M
YoY Change	-1366.67%	102.29%	15.78%
Income Tax	-$65.84M	$187.0K	$72.00K
% Of Pretax Income
Net Earnings	$36.58M	-$13.51M	-$6.309M
YoY Change	1956.27%	103.99%	16.88%
Net Earnings / Revenue	55.55%	-23.08%	-10.77%
Basic Earnings Per Share	$0.92	-$0.37	-$0.17
Diluted Earnings Per Share	$0.84	-$0.37	-$0.17
COMMON SHARES
Basic Shares Outstanding	36.93M	36.83M	36.47M
Diluted Shares Outstanding			36.47M

Balance Sheet

Concept	2019 Q4	2019 Q3	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$174.0M	$152.9M	$150.4M
YoY Change	23.84%	10.96%	25.23%
Cash & Equivalents	$62.43M	$39.53M	$39.99M
Short-Term Investments	$111.6M	$113.4M	$110.4M
Other Short-Term Assets	$7.900M	$19.20M	$14.70M
YoY Change	92.68%	357.14%	241.86%
Inventory	$42.58M	$12.80M	$14.04M
Prepaid Expenses
Receivables	$38.42M	$24.35M	$22.04M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$262.9M	$209.3M	$201.2M
YoY Change	48.88%	19.46%	29.47%
LONG-TERM ASSETS
Property, Plant & Equipment	$22.06M	$20.04M	$20.50M
YoY Change	15.16%	62.91%	69.4%
Goodwill	$66.13M
YoY Change
Intangibles	$382.6M
YoY Change
Long-Term Investments
YoY Change
Other Assets	$15.00M	$12.40M	$13.90M
YoY Change	32.74%	376.92%	504.35%
Total Long-Term Assets	$555.5M	$98.15M	$100.9M
YoY Change	1727.19%	541.49%	542.57%
TOTAL ASSETS
Total Short-Term Assets	$262.9M	$209.3M	$201.2M
Total Long-Term Assets	$555.5M	$98.15M	$100.9M
Total Assets	$818.4M	$307.4M	$302.1M
YoY Change	295.42%	61.38%	76.55%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.781M	$3.501M	$5.052M
YoY Change	-8.03%	-37.48%	40.33%
Accrued Expenses	$51.92M	$29.60M	$25.95M
YoY Change	116.65%	54.98%	55.38%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$400.0K
YoY Change
Total Short-Term Liabilities	$57.70M	$33.10M	$31.00M
YoY Change	90.02%	33.48%	51.97%
LONG-TERM LIABILITIES
Long-Term Debt	$58.40M	$68.90M	$68.20M
YoY Change
Other Long-Term Liabilities	$5.166M	$3.960M	$3.413M
YoY Change	88.2%	72.17%	55.14%
Total Long-Term Liabilities	$5.166M	$3.960M	$3.413M
YoY Change	88.2%	72.17%	55.14%
TOTAL LIABILITIES
Total Short-Term Liabilities	$57.70M	$33.10M	$31.00M
Total Long-Term Liabilities	$5.166M	$3.960M	$3.413M
Total Liabilities	$145.1M	$117.3M	$114.3M
YoY Change	338.32%	332.92%	405.66%
SHAREHOLDERS EQUITY
Retained Earnings	-$189.7M	-$226.3M	-$212.8M
YoY Change	-7.52%
Common Stock	$861.8M	$414.7M	$399.5M
YoY Change	127.75%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$132.0K	$132.0K	$132.0K
YoY Change	0.0%
Treasury Stock Shares	$28.00K	$28.00K	$28.00K
Shareholders Equity	$673.3M	$190.1M	$187.8M
YoY Change
Total Liabilities & Shareholders Equity	$818.4M	$307.4M	$302.1M
YoY Change	295.42%	61.38%	76.55%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2019 Q2
OPERATING ACTIVITIES
Net Income	$36.58M	-$13.51M	-$6.309M
YoY Change	1956.27%	103.99%	16.88%
Depreciation, Depletion And Amortization	$3.640M	$940.0K	$890.0K
YoY Change	203.33%	-44.71%	-47.34%
Cash From Operating Activities	-$4.190M	-$2.990M	$6.600M
YoY Change	-124.47%	-168.42%	72.77%
INVESTING ACTIVITIES
Capital Expenditures	-$1.190M	-$1.010M	-$1.870M
YoY Change	-84.32%	40.28%	146.05%
Acquisitions
YoY Change
Other Investing Activities	$51.01M	-$3.070M	$1.270M
YoY Change	-601.57%	-41.07%	-61.52%
Cash From Investing Activities	$49.82M	-$4.080M	-$600.0K
YoY Change	-380.68%	-31.2%	-123.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-22.04M	6.660M	320.0K
YoY Change	-1213.13%	-52.16%	-88.73%
NET CHANGE
Cash From Operating Activities	-4.190M	-2.990M	6.600M
Cash From Investing Activities	49.82M	-4.080M	-600.0K
Cash From Financing Activities	-22.04M	6.660M	320.0K
Net Change In Cash	23.59M	-410.0K	6.320M
YoY Change	1647.41%	-103.32%	-31.23%
FREE CASH FLOW
Cash From Operating Activities	-$4.190M	-$2.990M	$6.600M
Capital Expenditures	-$1.190M	-$1.010M	-$1.870M
Free Cash Flow	-$3.000M	-$1.980M	$8.470M
YoY Change	-112.14%	-138.9%	84.93%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue
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CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2018	gkos	Defined Contribution Plan Employers Matching Contribution Vesting Period DefinedContributionPlanEmployersMatchingContributionVestingPeriod	P3Y
CY2019	gkos	Defined Contribution Plan Employers Matching Contribution Vesting Period DefinedContributionPlanEmployersMatchingContributionVestingPeriod	P3Y
CY2018	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2019Q4	us-gaap	Trading Securities TradingSecurities	0
CY2020Q4	us-gaap	Trading Securities TradingSecurities	0
CY2020Q4	gkos	Number Of Months Of Lease Term For Adjustments Of Letters Of Credit Balance Outstanding To Begin NumberOfMonthsOfLeaseTermForAdjustmentsOfLettersOfCreditBalanceOutstandingToBegin	37
CY2020	dei	Entity Registrant Name EntityRegistrantName	GLAUKOS Corp
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001192448
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2020	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-37463
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	33-0945406
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	229 Avenida Fabricante
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	San Clemente
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92672
CY2020	dei	City Area Code CityAreaCode	949
CY2020	dei	Local Phone Number LocalPhoneNumber	367-9600
CY2020	dei	Security12b Title Security12bTitle	Common Stock
CY2020	dei	Trading Symbol TradingSymbol	GKOS
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	592000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1329000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-120674000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16016000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-11622000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	138202000
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	21576000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	25704000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1329000
CY2018	us-gaap	Profit Loss ProfitLoss	-12951000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	173860000
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	12851000
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	406963000
CY2019	gkos	Adjustments To Additional Paid In Capital Sharebased Compensation For Acquisition Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationForAcquisitionRequisiteServicePeriodRecognitionValue	27189000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	36393000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	592000
CY2019	us-gaap	Profit Loss ProfitLoss	15424000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	673272000
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	20335000
CY2020	gkos	Convertible Debt Transaction Costs Amount ConvertibleDebtTransactionCostsAmount	3267000
CY2020	gkos	Convertible Debt Taxes Amount ConvertibleDebtTaxesAmount	12891000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	81554000
CY2020	gkos	Adjustments To Additional Paid In Capital Capped Call Transactions AdjustmentsToAdditionalPaidInCapitalCappedCallTransactions	-35679000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	48641000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-326000
CY2020	us-gaap	Profit Loss ProfitLoss	-120348000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	667449000
CY2020	us-gaap	Profit Loss ProfitLoss	-120348000
CY2019	us-gaap	Profit Loss ProfitLoss	15424000
CY2018	us-gaap	Profit Loss ProfitLoss	-12951000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18864000
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	49652000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6935000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4724000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10315000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	29381000
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6306000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6264000
CY2020	gkos	Amortization Of Fair Market Value Of Inventory Adjustment From Merger AmortizationOfFairMarketValueOfInventoryAdjustmentFromMerger	24712000
CY2019	gkos	Amortization Of Fair Market Value Of Inventory Adjustment From Merger AmortizationOfFairMarketValueOfInventoryAdjustmentFromMerger	4026000
CY2020	gkos	Amortization Operating Lease Right Of Use Asset AmortizationOperatingLeaseRightOfUseAsset	5232000
CY2019	gkos	Amortization Operating Lease Right Of Use Asset AmortizationOperatingLeaseRightOfUseAsset	3557000
CY2020	gkos	Change In Deferred Income Tax Expense Benefit ChangeInDeferredIncomeTaxExpenseBenefit	-12176000
CY2019	gkos	Change In Deferred Income Tax Expense Benefit ChangeInDeferredIncomeTaxExpenseBenefit	-66306000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-367000
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-430000
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-156000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	46477000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	36393000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	25704000
CY2020	gkos	Stock Option Plan Expenses StockOptionPlanExpenses	-3172000
CY2019	gkos	Stock Option Plan Expenses StockOptionPlanExpenses	3088000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	1202000
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-194000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-1647000
CY2020	gkos	Amortization Of Discount On Short Term Investments AmortizationOfDiscountOnShortTermInvestments	453000
CY2019	gkos	Amortization Of Discount On Short Term Investments AmortizationOfDiscountOnShortTermInvestments	-338000
CY2018	gkos	Amortization Of Discount On Short Term Investments AmortizationOfDiscountOnShortTermInvestments	-295000
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5974000
CY2020	gkos	Deferred Rent And Other Liabilities Adjustment DeferredRentAndOtherLiabilitiesAdjustment	4538000
CY2019	gkos	Deferred Rent And Other Liabilities Adjustment DeferredRentAndOtherLiabilitiesAdjustment	5352000
CY2018	gkos	Deferred Rent And Other Liabilities Adjustment DeferredRentAndOtherLiabilitiesAdjustment	1919000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2243000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6632000
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2252000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1962000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-52000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2303000
CY2020	gkos	Increase Decrease In Prepaid Expense And Other Current Assets IncreaseDecreaseInPrepaidExpenseAndOtherCurrentAssets	-5033000
CY2019	gkos	Increase Decrease In Prepaid Expense And Other Current Assets IncreaseDecreaseInPrepaidExpenseAndOtherCurrentAssets	-917000
CY2018	gkos	Increase Decrease In Prepaid Expense And Other Current Assets IncreaseDecreaseInPrepaidExpenseAndOtherCurrentAssets	-1756000
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-2683000
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	779000
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2527000
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-287000
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	1777000
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-204000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-22988000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-369000
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	301002000
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	80388000
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	93696000
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	104697000
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	80494000
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	78851000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-205060000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	43426000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-26400000
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	287500000
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	-9614000
CY2020	gkos	Payment For Capped Call Transactions PaymentForCappedCallTransactions	35679000
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	20196000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	15064000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18654000
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	4025000
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3388000
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3509000
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3886000
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5601000
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	587000
CY2019	gkos	Repayments Of Acquired Debt RepaymentsOfAcquiredDebt	22496000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	262542000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-9645000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	21576000
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-88000
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-252000
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	48000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	34406000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	33160000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	14088000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71756000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38596000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24508000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	106162000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71756000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38596000
CY2019	gkos	Noncash Or Part Noncash Acquisition Equity Issued And Assumed NoncashOrPartNoncashAcquisitionEquityIssuedAndAssumed	437751000
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	22496000
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	641000
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	995000
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	152000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	484000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	171000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	401000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-120300000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-23000000.0
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-310100000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	15400000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-400000
CY2020Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	413900000
CY2020Q4	gkos	Net Working Capital NetWorkingCapital	419700000
CY2020	gkos	Interest Paid Net Convertible Senior Notes InterestPaidNetConvertibleSeniorNotes	4041000
CY2019	gkos	Interest Paid Net Convertible Senior Notes InterestPaidNetConvertibleSeniorNotes	2000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1334000
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt 0pt 12pt 0pt;"><span style="font-style:italic;font-weight:bold;">Use of Estimates</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates and assumptions. Management considers many factors in selecting appropriate financial accounting policies and controls and in developing the estimates and assumptions that are used in the preparation of these consolidated financial statements. Management must apply significant judgment in this process. In addition, other factors may affect estimates, including expected business and operational changes, sensitivity and volatility associated with the assumptions used in developing estimates, and whether historical trends are expected to be representative of future trends. The estimation process often may yield a range of reasonable estimates of the ultimate future outcomes, and management must select an amount that falls within that range of reasonable estimates. The most significant estimates in the accompanying consolidated financial statements relate to revenue recognition, the fair value of the liability component of the Convertible Notes, the incremental borrowing rate related to the Company’s leased assets, stock-based compensation expense and the valuation of certain intangible assets related to the Company’s acquisition of Avedro. Although these estimates are based on the Company’s knowledge of current events and actions it may undertake in the future, this process may result in actual results differing materially from those estimated amounts used in the preparation of the consolidated financial statements.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0pt;"><span style="color:#212529;">In </span>March 2020, the World Health Organization declared the outbreak caused by the novel strain of coronavirus (COVID-19) to be a global pandemic. While COVID-19 continues to evolve daily and its ultimate outcome is uncertain, it has caused significant disruption to individuals, governments, businesses, and financial markets. The Company’s </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt;">consolidated financial statements as of and for the year ended December 31, 2020 reflect the Company’s estimates of the impact of the COVID-19 outbreak. The full extent to which the COVID-19 pandemic will directly or indirectly impact the Company’s business, results of operations and financial condition, including sales, expenses, reserves and allowances, manufacturing, clinical trials, research and development costs and employee-related amounts, will depend on future developments that are uncertain, including the duration and severity of the COVID-19 outbreak, the severity and transmission rates of new variants of COVID-19, and the actions taken to contain it or treat COVID-19, including the availability, distribution and efficacy of vaccines for COVID-19, as well as the economic impact on local, regional, national and international customers and markets. As a result, there may be changes to the Company’s estimates regarding the impact of COVID-19 in future periods.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0pt;"><span style="visibility:hidden;"></span></p>
CY2020	gkos	Number Of Business Activities NumberOfBusinessActivities	1
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	96596000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	62430000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	29821000
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	9566000
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	9326000
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	8775000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	106162000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71756000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38596000
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt 0pt 9pt 0pt;"><span style="font-style:italic;font-weight:bold;">Concentration of Credit Risk and Significant Customers</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-indent:36pt;margin:0pt 0pt 9pt 0pt;">Financial instruments, which potentially subject the Company to significant concentration of credit risk, consist primarily of cash, cash equivalents, short-term investments and accounts receivable. The Company maintains deposits in federally insured financial institutions in excess of federally insured limits and management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held. Additionally, the Company has established guidelines regarding investment instruments and their maturities which are designed to maintain preservation of principal and liquidity. The Company believes that the concentration of credit risk in its accounts receivable is mitigated by its credit evaluation process, relatively short collection terms and the level of credit worthiness of its customers. During the years ended 2020, 2019 and 2018, none of the Company’s customers accounted for more than 10% of revenues. </p>
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1700000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1200000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35317000
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	400000
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2019Q4	us-gaap	Goodwill Goodwill	66100000
CY2020Q4	us-gaap	Goodwill Goodwill	66100000
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.70
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.37
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.70
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.37
CY2020	gkos	Number Of Performance Obligations For Majority Of Contracts With Customers NumberOfPerformanceObligationsForMajorityOfContractsWithCustomers	1
CY2020	gkos	Standard Warranty Period StandardWarrantyPeriod	P1Y
CY2020	us-gaap	Advertising Expense AdvertisingExpense	1600000
CY2019	us-gaap	Advertising Expense AdvertisingExpense	2500000
CY2018	us-gaap	Advertising Expense AdvertisingExpense	1800000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-120348000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	15424000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-12951000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44497000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37355000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35317000
CY2019	gkos	Incremental Common Shares Attributable To Dilutive Effect Of Common Stock Options IncrementalCommonSharesAttributableToDilutiveEffectOfCommonStockOptions	3495000
CY2019	gkos	Incremental Common Shares Attributable To Dilutive Effect Of Employee Stock Purchase Plan IncrementalCommonSharesAttributableToDilutiveEffectOfEmployeeStockPurchasePlan	25000
CY2019	gkos	Incremental Common Shares Attributable To Unvested Restricted Stock Units IncrementalCommonSharesAttributableToUnvestedRestrictedStockUnits	270000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44497000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41145000
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4940000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4007000
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5861000
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	307014000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	765000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	307772000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	111161000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	409000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	17000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	111553000
CY2020Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	37729000
CY2019Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	39657000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1670000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1240000
CY2020Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	36059000
CY2019Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	38417000
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	5346000
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	32108000
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	3584000
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	3884000
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	6879000
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	6586000
CY2020Q4	us-gaap	Inventory Gross InventoryGross	15809000
CY2019Q4	us-gaap	Inventory Gross InventoryGross	42578000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	39929000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	34186000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	15921000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12130000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24008000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22056000
CY2020Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	10815000
CY2019Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	13525000
CY2020Q4	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	3256000
CY2019Q4	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	1448000
CY2020Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	3728000
CY2019Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	2784000
CY2020Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	3198000
CY2019Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	842000
CY2020Q4	gkos	Accrued Contract Payments AccruedContractPayments	2793000
CY2019Q4	gkos	Accrued Contract Payments AccruedContractPayments	1448000
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	21541000
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	31872000
CY2020Q4	gkos	Accrued Liabilities And Employee Related Liabilities Current AccruedLiabilitiesAndEmployeeRelatedLiabilitiesCurrent	45331000
CY2019Q4	gkos	Accrued Liabilities And Employee Related Liabilities Current AccruedLiabilitiesAndEmployeeRelatedLiabilitiesCurrent	51919000
CY2019Q4	gkos	Fair Value Assets And Liabilities Level1 Level2 And Level3 Transfers Amount FairValueAssetsAndLiabilitiesLevel1Level2AndLevel3TransfersAmount	0
CY2020Q4	gkos	Fair Value Assets And Liabilities Level1 Level2 And Level3 Transfers Amount FairValueAssetsAndLiabilitiesLevel1Level2AndLevel3TransfersAmount	0
CY2020	us-gaap	Lessee Operating Lease Existence Of Option To Extend LesseeOperatingLeaseExistenceOfOptionToExtend	true
CY2020	us-gaap	Lessee Operating Lease Existence Of Option To Terminate LesseeOperatingLeaseExistenceOfOptionToTerminate	true
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	20009000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15704000
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	51443000
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	54048000
CY2020Q4	gkos	Lease Right Of Use Asset LeaseRightOfUseAsset	71452000
CY2019Q4	gkos	Lease Right Of Use Asset LeaseRightOfUseAsset	69752000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1185000
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2401000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	20704000
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	14195000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	60690000
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	58435000
CY2020Q4	gkos	Finance And Operating Lease Liability FinanceAndOperatingLeaseLiability	82579000
CY2019Q4	gkos	Finance And Operating Lease Liability FinanceAndOperatingLeaseLiability	75031000
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2424000
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1822000
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3596000
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2565000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2788000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	1996000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	113022000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	36029000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	125542000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	14140000
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	64852000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	21889000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2404000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5184000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2444000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	5340000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	22995000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2869000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2529000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	60690000
CY2020Q4	gkos	Lessee Operating Lease Option To Extend Value LesseeOperatingLeaseOptionToExtendValue	11900000
CY2020Q4	gkos	Lessee Financing Lease Option To Extend Value LesseeFinancingLeaseOptionToExtendValue	75800000
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y2M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y6M
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P21Y3M18D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P22Y3M18D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.077
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.055
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.060
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.060
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	2859000
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	2134000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6916000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	17474000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	181000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	55870000
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1160000
CY2020Q4	gkos	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	451334000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	27507000
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	423827000
CY2019Q4	gkos	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	451334000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	266300000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	27507000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	238793000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	266300000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2595000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	263705000
CY2020Q4	us-gaap	Goodwill Goodwill	66134000
CY2020Q4	us-gaap	Goodwill Goodwill	66134000
CY2019Q4	us-gaap	Goodwill Goodwill	66134000
CY2019Q4	us-gaap	Goodwill Goodwill	66134000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2595000
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	448739000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	24912000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	24912000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	24912000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	24619000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	22092000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	117346000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	238793000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	224959000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	236984000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	181278000
CY2020	gkos	Period For Payment On Invoice Terms PeriodForPaymentOnInvoiceTerms	P30D
CY2020	us-gaap	Revenue Practical Expedient Financing Component RevenuePracticalExpedientFinancingComponent	true
CY2020	us-gaap	Revenue Practical Expedient Financing Component RevenuePracticalExpedientFinancingComponent	true
CY2020	us-gaap	Revenue Practical Expedient Incremental Cost Of Obtaining Contract RevenuePracticalExpedientIncrementalCostOfObtainingContract	true
CY2020	us-gaap	Revenue Practical Expedient Incremental Cost Of Obtaining Contract RevenuePracticalExpedientIncrementalCostOfObtainingContract	true
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2019Q4	gkos	Number Of Votes Per Common Share NumberOfVotesPerCommonShare	1
CY2020Q4	gkos	Number Of Votes Per Common Share NumberOfVotesPerCommonShare	1
CY2020	gkos	Share Based Compensation Number Of Plans ShareBasedCompensationNumberOfPlans	4
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2020	gkos	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Percentage On First Anniversary Date Of Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversaryDateOfGrant	0.25
CY2020	gkos	Share Based Compensation Arrangement By Share Based Payment Award Award Remaining Vesting Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRemainingVestingPeriod	P3Y
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	43305000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	39481000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25704000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	43300000
CY2020	gkos	Business Combination Consideration Transferred Stock Issued For Replacement Awards Attributable To Pre Combination Services BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPreCombinationServices	13000000.0
CY2020	gkos	Allocated Share Based Compensation Expense Fair Value Adjustment AllocatedShareBasedCompensationExpenseFairValueAdjustment	-3200000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	39500000
CY2019	gkos	Business Combination Consideration Transferred Stock Issued For Replacement Awards Attributable To Pre Combination Services BusinessCombinationConsiderationTransferredStockIssuedForReplacementAwardsAttributableToPreCombinationServices	4500000
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3500000
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4600000
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10500000
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	46300000
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	46300000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-134096000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-50339000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-14776000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1782000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	303000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2408000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-132314000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-50036000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-12368000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-949000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	237000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	275000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	122000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	274000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	715000
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	487000
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	309000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	41000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	846000
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	583000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10098000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-58368000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1952000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-7938000
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	43000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-12007000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-66306000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11966000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-65460000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	583000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-27713000
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10508000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2597000
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-4674000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2418000
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1518000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	263000
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4371000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1349000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-3537000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-5006000
CY2020Q2	us-gaap	Gross Profit GrossProfit	9890000
CY2020Q3	us-gaap	Gross Profit GrossProfit	46899000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-6007000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	5082000
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3594000
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	2556000
CY2020	gkos	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsAmount	3835000
CY2019	gkos	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsAmount	1780000
CY2018	gkos	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsAmount	6143000
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1303000
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	419000
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-250000
CY2020	gkos	Income Tax Reconciliation Net Operating Loss Carryback IncomeTaxReconciliationNetOperatingLossCarryback	447000
CY2019	gkos	Accounting Standard Updates Implementation Income Tax Expense Benefit AccountingStandardUpdatesImplementationIncomeTaxExpenseBenefit	-104000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	24086000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-50400000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	6019000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11966000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-65460000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	583000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	87684000
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	69571000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	14293000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	11590000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	19972000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	19268000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	9013000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	7996000
CY2020Q4	gkos	Deferred Tax Assets Tax Deferred Expense Lease Liability DeferredTaxAssetsTaxDeferredExpenseLeaseLiability	20434000
CY2019Q4	gkos	Deferred Tax Assets Tax Deferred Expense Lease Liability DeferredTaxAssetsTaxDeferredExpenseLeaseLiability	18422000
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	147000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	151396000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	126994000
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	76034000
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	81174000
CY2020Q4	gkos	Deferred Tax Liabilities Deferred Expense Lease Assets DeferredTaxLiabilitiesDeferredExpenseLeaseAssets	17471000
CY2019Q4	gkos	Deferred Tax Liabilities Deferred Expense Lease Assets DeferredTaxLiabilitiesDeferredExpenseLeaseAssets	17333000
CY2020Q4	gkos	Deferred Tax Liabilities Convertible Notes DeferredTaxLiabilitiesConvertibleNotes	22252000
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	542000
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	59000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	6030000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	116358000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	104537000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	45551000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	32089000
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	10513000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9632000
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	13500000
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	500000
CY2018	gkos	Maximum Defined Contribution Plan Employer Matching Contribution Percent MaximumDefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15076000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13486000
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7227000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4987000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	230000
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4558000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3355000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2339000
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1701000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	74000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	537000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	541000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	442000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22803000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15076000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13486000
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	500000
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	1
CY2020	gkos	Defined Contribution Plan Maximum Annual Contributions Per Employee Age50 Or Less Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAge50OrLessAmount	19500
CY2019	gkos	Defined Contribution Plan Maximum Annual Contributions Per Employee Age50 Or Less Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAge50OrLessAmount	19000
CY2020	gkos	Defined Contribution Plan Maximum Annual Contributions Per Employee Over Age50 Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOverAge50Amount	26000
CY2019	gkos	Defined Contribution Plan Maximum Annual Contributions Per Employee Over Age50 Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOverAge50Amount	25000
CY2020	gkos	Maximum Defined Contribution Plan Employer Matching Contribution Percent MaximumDefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2019	gkos	Maximum Defined Contribution Plan Employer Matching Contribution Percent MaximumDefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1600000
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1400000
CY2020Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	5200000
CY2019Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	3700000
CY2020Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	5300000
CY2019Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	3500000
CY2020	gkos	Loss Contingency Number Of Lawsuits That Name Avedro And Each Member Of Avedro Board Of Directors LossContingencyNumberOfLawsuitsThatNameAvedroAndEachMemberOfAvedroBoardOfDirectors	4
CY2020Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	8800000
CY2019Q4	gkos	Restricted Cash Pledged For Letter Of Credit RestrictedCashPledgedForLetterOfCredit	8800000
CY2020Q4	gkos	Restricted Cash Pledged For Letter Of Credit RestrictedCashPledgedForLetterOfCredit	8800000
CY2018Q4	gkos	Frequency Of Adjustments Of Letters Of Credit Balance Outstanding FrequencyOfAdjustmentsOfLettersOfCreditBalanceOutstanding	P12M
CY2020	gkos	Adjustment Percentage Of Letters Of Credit Balance Outstanding AdjustmentPercentageOfLettersOfCreditBalanceOutstanding	0.20
CY2020Q4	gkos	Minimal Amount Of Letters Of Credit Balance Outstanding After Adjustments MinimalAmountOfLettersOfCreditBalanceOutstandingAfterAdjustments	2000000.0
CY2020Q4	gkos	Number Of Other Irrevocable Letters Of Credit Outstanding NumberOfOtherIrrevocableLettersOfCreditOutstanding	2
CY2020Q4	gkos	Restricted Cash Pledged For Office Lease Agreement RestrictedCashPledgedForOfficeLeaseAgreement	600000
CY2020Q4	gkos	Restricted Cash Pledged For Credit Card Program RestrictedCashPledgedForCreditCardProgram	200000
CY2020Q4	gkos	Other Commitment Obligation Amount OtherCommitmentObligationAmount	2500000
CY2020Q4	gkos	Restructuring Headcount Reduction Number RestructuringHeadcountReductionNumber	40
CY2020Q4	us-gaap	Restructuring And Related Cost Expected Cost1 RestructuringAndRelatedCostExpectedCost1	5000000.0
CY2020	us-gaap	Payments For Restructuring PaymentsForRestructuring	4900000
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	100000
CY2020Q4	gkos	Purchase Obligation Due After Twelve Months PurchaseObligationDueAfterTwelveMonths	100000
CY2020	gkos	Number Of Business Activities NumberOfBusinessActivities	1
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24008000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22056000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19153000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	29381000
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6306000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6264000
CY2020	gkos	Capital Expenditure CapitalExpenditure	6935000
CY2019	gkos	Capital Expenditure CapitalExpenditure	4725000
CY2018	gkos	Capital Expenditure CapitalExpenditure	10315000
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	55336000
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	31558000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	64831000
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	73234000
CY2020Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	32529000
CY2020Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	21668000
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	17932000
CY2020Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	19590000
CY2020Q1	us-gaap	Gross Profit GrossProfit	22807000
CY2019Q3	us-gaap	Gross Profit GrossProfit	50806000
CY2019Q4	us-gaap	Gross Profit GrossProfit	49945000
CY2020Q4	us-gaap	Gross Profit GrossProfit	53644000
CY2020Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	50546000
CY2020Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	38116000
CY2020Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	38947000
CY2020Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	43792000
CY2020Q1	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	24873000
CY2020Q2	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	18971000
CY2020Q3	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	20304000
CY2020Q4	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	21244000
CY2020Q1	us-gaap	Operating Expenses OperatingExpenses	75419000
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	57087000
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	59251000
CY2020Q4	us-gaap	Operating Expenses OperatingExpenses	65036000
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-52612000
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-47197000
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-12352000
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-11392000
CY2020Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1896000
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-81000
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-4285000
CY2020Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2499000
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-450000
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7384000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-889000
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3243000
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-54058000
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-39894000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-15748000
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-10648000
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.24
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.90
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.24
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.24
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.90
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.24
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	54026000
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	58600000
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	58509000
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	65849000
CY2019Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7111000
CY2019Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7870000
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7703000
CY2019Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	15904000
CY2019Q1	us-gaap	Gross Profit GrossProfit	46915000
CY2019Q2	us-gaap	Gross Profit GrossProfit	50730000
CY2019Q1	us-gaap	Operating Expenses OperatingExpenses	48855000
CY2019Q2	us-gaap	Operating Expenses OperatingExpenses	56970000
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	63221000
CY2019Q4	us-gaap	Operating Expenses OperatingExpenses	79642000
CY2019Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	34925000
CY2019Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	37656000
CY2019Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	44443000
CY2019Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	59611000
CY2019Q1	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	13930000
CY2019Q2	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	17069000
CY2019Q3	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	17278000
CY2019Q4	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	20031000
CY2019Q2	us-gaap	Research And Development In Process ResearchAndDevelopmentInProcess	2245000
CY2019Q3	us-gaap	Research And Development In Process ResearchAndDevelopmentInProcess	1500000
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-1940000
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-6240000
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-12415000
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-29697000
CY2019Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	720000
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	3000
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-904000
CY2019Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	437000
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	122000
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	72000
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	187000
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-65841000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-1342000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-6309000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-13506000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	36581000
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.37
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.92
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.37
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84

Files In Submission

Name	View Source	Status
R29.htm	Edgar Link	pending
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0001558370-21-002061-index.html	Edgar Link	pending
0001558370-21-002061.txt	Edgar Link	pending
0001558370-21-002061-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
gkos-20201231.xsd	Edgar Link	pending
gkos-20201231x10k.htm	Edgar Link	pending
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gkos-20201231xex31d1.htm	Edgar Link	pending
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gkos-20201231xex32d1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$GKOS
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2019 Q4 Form 10-K Financial Statement

#000155837021002061 Filed on March 01, 2021

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Facts In Submission

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$GKOS GLAUKOS Corp Stock $gkos

2019 Q4 Form 10-K Financial Statement

#000155837021002061 Filed on March 01, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GKOS
GLAUKOS Corp Stock $gkos