10-K Filing

GUARDANT HEALTH, INC. CIK: 1576280 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0001628280-19-003139`
Period End Date	20181231
Filing Date	20190319
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	gh-20181231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 84 Income Statement 67 Cash Flow Statement 131 Stockholders Equity 36 Comprehensive Income 18

Balance Sheet 84 line items

Line Item	Tag	Value	Unit	Period
Preferred stock, par value (in usd per share)	`PreferredStockParOrStatedValuePerShare`	-	USD	Point-in-time
Preferred stock, par value (in usd per share)	`PreferredStockParOrStatedValuePerShare`	-	USD	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	0.00	shares	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$140.54M	USD	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$72.28M	USD	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Short-term marketable securities	`MarketableSecuritiesCurrent`	$149.04M	USD	Point-in-time
Short-term marketable securities	`MarketableSecuritiesCurrent`	$278.42M	USD	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$12.79M	USD	Point-in-time
Common stock, par value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Common stock, par value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$35.69M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	111.85M	shares	Point-in-time
Inventory	`InventoryNet`	$9.14M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	350.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	350.00M	shares	Point-in-time
Inventory	`InventoryNet`	$7.29M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$1.54M	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	85.83M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$5.20M	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	11.90M	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	11.90M	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	85.83M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$242.94M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$468.99M	USD	Point-in-time
Long-term marketable securities	`MarketableSecuritiesNoncurrent`	$77.56M	USD	Point-in-time
Variable interest entity, assets	`VariableInterestEntityConsolidatedCarryingAmountAssets`	$48.30M	USD	Point-in-time
Long-term marketable securities	`MarketableSecuritiesNoncurrent`	$73.25M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$16.04M	USD	Point-in-time
Variable interest entity, liabilities	`VariableInterestEntityConsolidatedCarryingAmountLiabilities`	$1.20M	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$31.00M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$2.05M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.97M	USD	Point-in-time
Total Assets	`Assets`	$342.94M	USD	Point-in-time
Total Assets	`Assets`	$587.40M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$10.64M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$5.00M	USD	Point-in-time
Accrued compensation	`DeferredCompensationLiabilityCurrent`	$4.91M	USD	Point-in-time
Accrued compensation	`DeferredCompensationLiabilityCurrent`	$12.99M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$7.08M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$6.41M	USD	Point-in-time
Capital lease, current	`CapitalLeaseObligationsCurrent`	$97.00K	USD	Point-in-time
Capital lease, current	`CapitalLeaseObligationsCurrent`	$199.00K	USD	Point-in-time
Deferred revenue	`DeferredRevenueCurrent`	$3.11M	USD	Point-in-time
Deferred revenue	`DeferredRevenueCurrent`	$16.14M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$46.94M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$19.63M	USD	Point-in-time
Capital lease, net of current portion	`CapitalLeaseObligationsNoncurrent`	$460.00K	USD	Point-in-time
Capital lease, net of current portion	`CapitalLeaseObligationsNoncurrent`	$119.00K	USD	Point-in-time
Deferred rent, net of current portion	`DeferredRentCreditNoncurrent`	$6.54M	USD	Point-in-time
Deferred rent, net of current portion	`DeferredRentCreditNoncurrent`	$7.84M	USD	Point-in-time
Obligation related to royalty	`AccruedRoyaltiesNoncurrent`	$7.71M	USD	Point-in-time
Obligation related to royalty	`AccruedRoyaltiesNoncurrent`	$7.34M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$206.00K	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	-	USD	Point-in-time
Total Liabilities	`Liabilities`	$34.33M	USD	Point-in-time
Total Liabilities	`Liabilities`	$62.45M	USD	Point-in-time
Commitments and contingencies (Note 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	-	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$41.80M	USD	Point-in-time
Convertible preferred stock, par value of $0.00001 per share; no shares authorized, issued or outstanding as of December 31, 2018; 80,104,464 shares authorized, 78,627,369 shares issued and outstanding as of December 31, 2017	`ConvertiblePreferredStockValueOutstanding`	-	USD	Point-in-time
Convertible preferred stock, par value of $0.00001 per share; no shares authorized, issued or outstanding as of December 31, 2018; 80,104,464 shares authorized, 78,627,369 shares issued and outstanding as of December 31, 2017	`ConvertiblePreferredStockValueOutstanding`	$499.97M	USD	Point-in-time
Preferred stock, par value of $0.00001 per share; 10,000,000 shares authorized, no shares issued or outstanding as of December 31, 2018; no shares authorized, issued or outstanding as of December 31, 2017	`PreferredStockValueOutstanding`	-	USD	Point-in-time
Preferred stock, par value of $0.00001 per share; 10,000,000 shares authorized, no shares issued or outstanding as of December 31, 2018; no shares authorized, issued or outstanding as of December 31, 2017	`PreferredStockValueOutstanding`	-	USD	Point-in-time
Common stock, par value of $0.00001 per share; 350,000,000 and 111,853,396 shares authorized as of December 31, 2018 and 2017, respectively; 85,832,454 and 11,896,882 shares issued and outstanding as of December 31, 2018 and 2017, respectively	`CommonStockValueOutstanding`	-	USD	Point-in-time
Common stock, par value of $0.00001 per share; 350,000,000 and 111,853,396 shares authorized as of December 31, 2018 and 2017, respectively; 85,832,454 and 11,896,882 shares issued and outstanding as of December 31, 2018 and 2017, respectively	`CommonStockValueOutstanding`	$1.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$4.90M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$764.03M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-83.00K	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-532.00K	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-195.74M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-280.80M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquity`	$79.70M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquity`	$308.61M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquity`	$483.15M	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquity`	$83.44M	USD	Point-in-time
Total Liabilities, Redeemable Noncontrolling Interest and Stockholders Equity	`LiabilitiesAndStockholdersEquity`	$342.94M	USD	Point-in-time
Total Liabilities, Redeemable Noncontrolling Interest and Stockholders Equity	`LiabilitiesAndStockholdersEquity`	$587.40M	USD	Point-in-time

Income Statement 67 line items

Line Item	Tag	Value	Unit	Period
Precision oncology testing	`RevenuefromPrecisionOncologyTesting`	$24.50M	USD	Annual
Precision oncology testing	`RevenuefromPrecisionOncologyTesting`	$42.09M	USD	Annual
Precision oncology testing	`RevenuefromPrecisionOncologyTesting`	$78.41M	USD	Annual
Development services	`RevenuefromDevelopmentServices`	$753.00K	USD	Annual
Development services	`RevenuefromDevelopmentServices`	$12.23M	USD	Annual
Development services	`RevenuefromDevelopmentServices`	$7.75M	USD	Annual
Total revenue	`Revenues`	$25.25M	USD	Annual
Total revenue	`Revenues`	$49.84M	USD	Annual
Total revenue	`Revenues`	$90.64M	USD	Annual
Cost of precision oncology testing	`CostsofPrecisionOncologyTesting`	$39.85M	USD	Annual
Cost of precision oncology testing	`CostsofPrecisionOncologyTesting`	$28.88M	USD	Annual
Cost of precision oncology testing	`CostsofPrecisionOncologyTesting`	$22.07M	USD	Annual
Cost of development services	`CostofDevelopmentServices`	$2.73M	USD	Annual
Cost of development services	`CostofDevelopmentServices`	$3.36M	USD	Annual
Cost of development services	`CostofDevelopmentServices`	$59.00K	USD	Annual
Research and development expense	`ResearchAndDevelopmentExpense`	$25.56M	USD	Annual
Research and development expense	`ResearchAndDevelopmentExpense`	$50.71M	USD	Annual
Research and development expense	`ResearchAndDevelopmentExpense`	$10.86M	USD	Annual
Sales and marketing expense	`SellingAndMarketingExpense`	$26.19M	USD	Annual
Sales and marketing expense	`SellingAndMarketingExpense`	$32.50M	USD	Annual
Sales and marketing expense	`SellingAndMarketingExpense`	$53.47M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$9.92M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$36.78M	USD	Annual
General and administrative expense	`GeneralAndAdministrativeExpense`	$36.19M	USD	Annual
Total costs and operating expenses	`CostsAndExpenses`	$126.45M	USD	Annual
Total costs and operating expenses	`CostsAndExpenses`	$69.10M	USD	Annual
Total costs and operating expenses	`CostsAndExpenses`	$183.58M	USD	Annual
Loss from operations	`OperatingIncomeLoss`	$-43.85M	USD	Annual
Loss from operations	`OperatingIncomeLoss`	$-92.94M	USD	Annual
Loss from operations	`OperatingIncomeLoss`	$-76.61M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$2.23M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$733.00K	USD	Annual
Interest income	`InvestmentIncomeInterest`	$5.27M	USD	Annual
Interest expense	`InterestExpense`	$1.25M	USD	Annual
Interest expense	`InterestExpense`	$3.02M	USD	Annual
Interest expense	`InterestExpense`	$2.70M	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-5.08M	USD	Annual
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-1.06M	USD	Annual
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$4.70M	USD	Annual
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-1.00K	USD	Annual
Loss before provision for income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-46.13M	USD	Annual
Loss before provision for income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-84.22M	USD	Annual
Loss before provision for income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-83.21M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$7.00K	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$38.00K	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$6.00K	USD	Annual
Net loss	`ProfitLoss`	$-84.26M	USD	Annual
Net loss	`ProfitLoss`	$-46.14M	USD	Annual
Net loss	`ProfitLoss`	$-83.22M	USD	Annual
Fair value adjustment of redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	$800.00K	USD	Annual
Fair value adjustment of redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	-	USD	Annual
Fair value adjustment of redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	-	USD	Annual
Net loss attributable to Guardant Health, Inc.	`NetIncomeLoss`	$-46.14M	USD	Annual
Net loss attributable to Guardant Health, Inc.	`NetIncomeLoss`	$-85.06M	USD	Annual
Net loss attributable to Guardant Health, Inc.	`NetIncomeLoss`	$-83.22M	USD	Annual
Deemed dividend related to repurchase of Series A convertible preferred stock	`PreferredStockDividendsIncomeStatementImpact`	$1.10M	USD	Annual
Net loss attributable to Guardant Health, Inc. common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-46.14M	USD	Annual
Net loss attributable to Guardant Health, Inc. common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-85.06M	USD	Annual
Net loss attributable to Guardant Health, Inc. common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-89.00M	USD	Annual
Net loss per share attributable to common stockholders, basic and diluted (in usd per share)	`EarningsPerShareBasicAndDiluted`	$-2.80	USD	Annual
Net loss per share attributable to common stockholders, basic and diluted (in usd per share)	`EarningsPerShareBasicAndDiluted`	$-3.53	USD	Annual
Net loss per share attributable to common stockholders, basic and diluted (in usd per share)	`EarningsPerShareBasicAndDiluted`	$-7.07	USD	Annual
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	13.05M	shares	Annual
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	12.58M	shares	Annual
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	30.40M	shares	Annual

Cash Flow Statement 131 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-84.26M	USD	Annual
Net loss	`ProfitLoss`	$-46.14M	USD	Annual
Net loss	`ProfitLoss`	$-83.22M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$5.21M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$3.69M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$7.14M	USD	Annual
Unrealized translation (gains) losses on obligation related to royalty	`UnrealizedTranslationsLossesonObligationRelatedtoRoyalty`	$-357.00K	USD	Annual
Unrealized translation (gains) losses on obligation related to royalty	`UnrealizedTranslationsLossesonObligationRelatedtoRoyalty`	$980.00K	USD	Annual
Unrealized translation (gains) losses on obligation related to royalty	`UnrealizedTranslationsLossesonObligationRelatedtoRoyalty`	-	USD	Annual
Non-cash stock-based compensation	`ShareBasedCompensation`	$1.97M	USD	Annual
Non-cash stock-based compensation	`ShareBasedCompensation`	$6.85M	USD	Annual
Non-cash stock-based compensation	`ShareBasedCompensation`	$3.67M	USD	Annual
Non-cash interest expense	`NoncashInterestExpense`	$685.00K	USD	Annual
Non-cash interest expense	`NoncashInterestExpense`	$1.02M	USD	Annual
Non-cash interest expense	`NoncashInterestExpense`	$-13.00K	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-5.08M	USD	Annual
Amortization of premium (discount) on marketable securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$-359.00K	USD	Annual
Amortization of premium (discount) on marketable securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$-287.00K	USD	Annual
Amortization of premium (discount) on marketable securities	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$412.00K	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$22.90M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$2.79M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$9.29M	USD	Annual
Inventory	`IncreaseDecreaseInInventories`	$351.00K	USD	Annual
Inventory	`IncreaseDecreaseInInventories`	$1.85M	USD	Annual
Inventory	`IncreaseDecreaseInInventories`	$4.52M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-30.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$610.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$3.66M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$883.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-12.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$451.00K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$2.15M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.25M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$5.05M	USD	Annual
Accrued compensation	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$1.37M	USD	Annual
Accrued compensation	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$2.35M	USD	Annual
Accrued compensation	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$8.07M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities`	$4.66M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities`	$508.00K	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities`	$286.00K	USD	Annual
Deferred rent	`IncreaseDecreaseInDeferredCharges`	$-1.31M	USD	Annual
Deferred rent	`IncreaseDecreaseInDeferredCharges`	$-467.00K	USD	Annual
Deferred rent	`IncreaseDecreaseInDeferredCharges`	$-204.00K	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$1.70M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$1.22M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$13.03M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-72.19M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-36.71M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-72.23M	USD	Annual
Purchase of marketable securities	`PaymentsToAcquireMarketableSecurities`	$236.84M	USD	Annual
Purchase of marketable securities	`PaymentsToAcquireMarketableSecurities`	$287.45M	USD	Annual
Purchase of marketable securities	`PaymentsToAcquireMarketableSecurities`	$341.42M	USD	Annual
Maturity of marketable securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$369.38M	USD	Annual
Maturity of marketable securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$154.62M	USD	Annual
Maturity of marketable securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$75.40M	USD	Annual
Purchase of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$6.68M	USD	Annual
Purchase of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$20.20M	USD	Annual
Purchase of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.77M	USD	Annual
Payment in connection with a license agreement	`PaymentsToAcquireIntangibleAssets`	-	USD	Annual
Payment in connection with a license agreement	`PaymentsToAcquireIntangibleAssets`	$2.30M	USD	Annual
Payment in connection with a license agreement	`PaymentsToAcquireIntangibleAssets`	-	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-153.03M	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$26.20M	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-170.42M	USD	Annual
Payment related to settlement of debt and buyout of royalty obligations	`PaymentRelatedtoSettlementofDebtandBuyoutofRoyaltyObligations`	$379.00K	USD	Annual
Payment related to settlement of debt and buyout of royalty obligations	`PaymentRelatedtoSettlementofDebtandBuyoutofRoyaltyObligations`	$25.84M	USD	Annual
Payment related to settlement of debt and buyout of royalty obligations	`PaymentRelatedtoSettlementofDebtandBuyoutofRoyaltyObligations`	-	USD	Annual
Payments made on capital lease obligations	`RepaymentsOfLongTermCapitalLeaseObligations`	$-4.00K	USD	Annual
Payments made on capital lease obligations	`RepaymentsOfLongTermCapitalLeaseObligations`	$244.00K	USD	Annual
Payments made on capital lease obligations	`RepaymentsOfLongTermCapitalLeaseObligations`	$443.00K	USD	Annual
Proceeds from issuance of convertible preferred stock, net of issuance costs	`ProceedsFromIssuanceOfConvertiblePreferredStock`	$319.54M	USD	Annual
Proceeds from issuance of convertible preferred stock, net of issuance costs	`ProceedsFromIssuanceOfConvertiblePreferredStock`	-	USD	Annual
Proceeds from issuance of convertible preferred stock, net of issuance costs	`ProceedsFromIssuanceOfConvertiblePreferredStock`	$40.05M	USD	Annual
Proceeds from issuance of common stock upon exercise of stock options	`ProceedsFromStockOptionsExercised`	$753.00K	USD	Annual
Proceeds from issuance of common stock upon exercise of stock options	`ProceedsFromStockOptionsExercised`	$266.00K	USD	Annual
Proceeds from issuance of common stock upon exercise of stock options	`ProceedsFromStockOptionsExercised`	$3.11M	USD	Annual
Proceeds from issuance of common stock upon the exercise of warrants	`ProceedsFromWarrantExercises`	-	USD	Annual
Proceeds from issuance of common stock upon the exercise of warrants	`ProceedsFromWarrantExercises`	$45.00K	USD	Annual
Proceeds from issuance of common stock upon the exercise of warrants	`ProceedsFromWarrantExercises`	$12.00K	USD	Annual
Repurchase of convertible preferred stock	`PaymentsForRepurchaseOfConvertiblePreferredStock`	-	USD	Annual
Repurchase of convertible preferred stock	`PaymentsForRepurchaseOfConvertiblePreferredStock`	$5.33M	USD	Annual
Repurchase of convertible preferred stock	`PaymentsForRepurchaseOfConvertiblePreferredStock`	-	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$7.22M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$100.00K	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$172.00K	USD	Annual
Proceeds from initial public offering, net of underwriting discounts and commissions	`ProceedsFromIssuanceInitialPublicOffering`	$254.01M	USD	Annual
Proceeds from initial public offering, net of underwriting discounts and commissions	`ProceedsFromIssuanceInitialPublicOffering`	-	USD	Annual
Proceeds from initial public offering, net of underwriting discounts and commissions	`ProceedsFromIssuanceInitialPublicOffering`	-	USD	Annual
Payment of offering costs related to initial public offering	`PaymentsOfStockIssuanceCosts`	-	USD	Annual
Payment of offering costs related to initial public offering	`PaymentsOfStockIssuanceCosts`	-	USD	Annual
Payment of offering costs related to initial public offering	`PaymentsOfStockIssuanceCosts`	$4.39M	USD	Annual
Net proceeds from issuance of equity interests in redeemable noncontrolling interest	`ProceedsFromMinorityShareholders`	-	USD	Annual
Net proceeds from issuance of equity interests in redeemable noncontrolling interest	`ProceedsFromMinorityShareholders`	-	USD	Annual
Net proceeds from issuance of equity interests in redeemable noncontrolling interest	`ProceedsFromMinorityShareholders`	$41.00M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$281.66M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$293.16M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$39.84M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$39.01M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$29.33M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$67.95M	USD	Annual
Cash, cash equivalents and restricted cash - Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$72.60M	USD	Point-in-time
Cash, cash equivalents and restricted cash - Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$33.59M	USD	Point-in-time
Cash, cash equivalents and restricted cash - Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.26M	USD	Point-in-time
Cash, cash equivalents and restricted cash - Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$140.54M	USD	Point-in-time
Cash, cash equivalents and restricted cash - End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$72.60M	USD	Point-in-time
Cash, cash equivalents and restricted cash - End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$33.59M	USD	Point-in-time
Cash, cash equivalents and restricted cash - End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.26M	USD	Point-in-time
Cash, cash equivalents and restricted cash - End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$140.54M	USD	Point-in-time
Cash paid for interest	`InterestPaidNet`	$1.34M	USD	Annual
Cash paid for interest	`InterestPaidNet`	$1.25M	USD	Annual
Cash paid for interest	`InterestPaidNet`	$2.24M	USD	Annual
Cash paid for income taxes	`IncomeTaxesPaidNet`	$26.00K	USD	Annual
Cash paid for income taxes	`IncomeTaxesPaidNet`	$14.00K	USD	Annual
Cash paid for income taxes	`IncomeTaxesPaidNet`	$102.00K	USD	Annual
Capitalized license fees financed through future royalty payment	`CapitalizedLicenseFeesFinancedThroughFutureRoyaltyPayment`	-	USD	Annual
Capitalized license fees financed through future royalty payment	`CapitalizedLicenseFeesFinancedThroughFutureRoyaltyPayment`	$6.30M	USD	Annual
Capitalized license fees financed through future royalty payment	`CapitalizedLicenseFeesFinancedThroughFutureRoyaltyPayment`	-	USD	Annual
Property and equipment acquired under capital leases	`IncreaseinCapitalExpendituresIncurredbutNotyetPaid`	$34.00K	USD	Annual
Property and equipment acquired under capital leases	`IncreaseinCapitalExpendituresIncurredbutNotyetPaid`	$897.00K	USD	Annual
Property and equipment acquired under capital leases	`IncreaseinCapitalExpendituresIncurredbutNotyetPaid`	$591.00K	USD	Annual
Increase in purchases of property and equipment included in accounts payable and accrued expenses	`CapitalLeaseObligationsIncurred`	-	USD	Annual
Increase in purchases of property and equipment included in accounts payable and accrued expenses	`CapitalLeaseObligationsIncurred`	$346.00K	USD	Annual
Increase in purchases of property and equipment included in accounts payable and accrued expenses	`CapitalLeaseObligationsIncurred`	$468.00K	USD	Annual
Conversion of convertible preferred stock to common stock upon initial public offering	`ConversionofStockUponInitialPublicOffering`	-	USD	Annual
Conversion of convertible preferred stock to common stock upon initial public offering	`ConversionofStockUponInitialPublicOffering`	-	USD	Annual
Conversion of convertible preferred stock to common stock upon initial public offering	`ConversionofStockUponInitialPublicOffering`	$499.97M	USD	Annual
Deferred offering costs included in accounts payable and accrued expenses	`OfferingCostsIncurredbutNotyetPaid`	-	USD	Annual
Deferred offering costs included in accounts payable and accrued expenses	`OfferingCostsIncurredbutNotyetPaid`	-	USD	Annual
Deferred offering costs included in accounts payable and accrued expenses	`OfferingCostsIncurredbutNotyetPaid`	$89.00K	USD	Annual

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquity`	$79.70M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$308.61M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$483.15M	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$83.44M	USD	Point-in-time
Conversion of convertible preferred stock to common stock upon initial public offering	`StockIssuedDuringPeriodValueConversionofConvertiblePreferredStocktoCommonStockUponInitialPublicOffering`	-	USD	Annual
Issuance of common stock upon initial public offering, net of offering costs of $4,475	`StockIssuedDuringPeriodValueNewIssues`	$249.53M	USD	Annual
Issuance of common stock upon exercise of stock options, shares	`StockIssuedDuringPeriodSharesStockOptionsExercised`	342,946.00	shares	Annual
Issuance of common stock upon exercise of stock options, shares	`StockIssuedDuringPeriodSharesStockOptionsExercised`	1.01M	shares	Annual
Issuance of common stock upon exercise of stock options, value	`StockIssuedDuringPeriodValueStockOptionsExercised`	$2.90M	USD	Annual
Issuance of common stock upon exercise of stock options, value	`StockIssuedDuringPeriodValueStockOptionsExercised`	$266.00K	USD	Annual
Issuance of common stock upon exercise of stock options, value	`StockIssuedDuringPeriodValueStockOptionsExercised`	$753.00K	USD	Annual
Issuance of common stock upon exercise of warrants, shares	`StockIssuedDuringPeriodSharesExerciseofWarrants`	6,548.00	shares	Point-in-time
Issuance of common stock upon exercise of warrants, value	`StockIssuedDuringPeriodValueExerciseofWarrants`	-	USD	Annual
Issuance of common stock upon exercise of warrants, value	`StockIssuedDuringPeriodValueExerciseofWarrants`	$45.00K	USD	Annual
Issuance of common stock upon exercise of warrants, value	`StockIssuedDuringPeriodValueExerciseofWarrants`	$12.00K	USD	Annual
Issuance of common stock upon early exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercisedEarly`	-	USD	Annual
Issuance of common stock upon early exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercisedEarly`	-	USD	Annual
Vesting of common stock exercised early	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$283.00K	USD	Annual
Vesting of common stock exercised early	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$103.00K	USD	Annual
Repurchase of common and convertible preferred stock, value	`StockRepurchasedDuringPeriodValue`	$172.00K	USD	Annual
Repurchase of common and convertible preferred stock, value	`StockRepurchasedDuringPeriodValue`	$7.22M	USD	Annual
Repurchase of common and convertible preferred stock, value	`StockRepurchasedDuringPeriodValue`	$100.00K	USD	Annual
Share-based compensation expense	`AllocatedShareBasedCompensationExpense`	$-1.97M	USD	Annual
Share-based compensation expense	`AllocatedShareBasedCompensationExpense`	$-6.85M	USD	Annual
Share-based compensation expense	`AllocatedShareBasedCompensationExpense`	$-3.67M	USD	Annual
Other comprehensive loss, net of tax impact	`OtherComprehensiveIncomeLossNetOfTax`	$-446.00K	USD	Annual
Other comprehensive loss, net of tax impact	`OtherComprehensiveIncomeLossNetOfTax`	$-76.00K	USD	Annual
Other comprehensive loss, net of tax impact	`OtherComprehensiveIncomeLossNetOfTax`	$449.00K	USD	Annual
Net loss	`ProfitLoss`	$-84.26M	USD	Annual
Net loss	`ProfitLoss`	$-46.14M	USD	Annual
Net loss	`ProfitLoss`	$-83.22M	USD	Annual
Ending balance	`StockholdersEquity`	$79.70M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$308.61M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$483.15M	USD	Point-in-time
Ending balance	`StockholdersEquity`	$83.44M	USD	Point-in-time
Fair value adjustment of redeemable noncontrolling interest	`ReclassificationsOfTemporaryToPermanentEquity`	$-800.00K	USD	Annual

Comprehensive Income 18 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-84.26M	USD	Annual
Net loss	`ProfitLoss`	$-46.14M	USD	Annual
Net loss	`ProfitLoss`	$-83.22M	USD	Annual
Unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-76.00K	USD	Annual
Unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-446.00K	USD	Annual
Unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$449.00K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-446.00K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-76.00K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$449.00K	USD	Annual
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-83.81M	USD	Annual
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-83.67M	USD	Annual
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-46.22M	USD	Annual
Comprehensive loss attributable to redeemable noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$800.00K	USD	Annual
Comprehensive loss attributable to redeemable noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	Annual
Comprehensive loss attributable to redeemable noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	Annual
Comprehensive loss attributable to Guardant Health, Inc.	`ComprehensiveIncomeNetOfTax`	$-84.61M	USD	Annual
Comprehensive loss attributable to Guardant Health, Inc.	`ComprehensiveIncomeNetOfTax`	$-46.22M	USD	Annual
Comprehensive loss attributable to Guardant Health, Inc.	`ComprehensiveIncomeNetOfTax`	$-83.67M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.