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Operating lease right-of-use assets Operating Lease Right Of Use Asset VA MVP Veterans Affairs Million Veteran Program [Member] Veterans affairs million veteran program. June 2022 Tranche Two [Member] Tranche two. Document Quarterly Report Document Quarterly Report Proceeds from sales of available-for-sale debt securities Proceeds From Sale Of Available For Sale Securities Debt Statement [Table] Statement [Table] Long-term operating lease liabilities Long-term operating lease liabilities Operating Lease Liability Noncurrent September 2022 Tranche Four [Member] Tranche four. Cash paid for operating lease liabilities Operating Lease Payments Proceeds from ESPP purchases, shares Stock Issued During Period Shares Employee Stock Purchase Plans Total common stock reserved for stock awards Common Stock Capital Shares Reserved For Future Issuance Unvested Restricted Stock Units, Weighted-Average Grant Date Fair Value, Beginning Balance Unvested Restricted Stock Units, Weighted-Average Grant Date Fair Value, Ending Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Unvested Restricted Stock Units, Weighted-Average Grant Date Fair Value, vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total Outstanding Options, Number of Shares, forfeited or expired Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Other Deferred Costs, Net, Total Other deferred costs Other Deferred Costs Net Revenue Revenue From Contract With Customer [Member] Employee-related Liabilities, Current, Total Accrued compensation Employee Related Liabilities Current Leases Lessee Operating Leases [Text Block] Stock Options Employee Stock Option [Member] Concentration Risk Type Concentration Risk By Type [Axis] Operating leases, weighted-average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Plan Name Plan Name [Domain] Restricted Stock Units, Aggregate Fair Value, vested Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Vested Cash and cash equivalents, Unrealized Gains Cash And Cash Equivalents Gross Unrealized Gains Cash and cash equivalents, gross unrealized gains. Decrease in right-of-use assets Increase Decrease in Right of Use Assets Increase decrease in right of use assets. 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Weighted-average grant date fair value of options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Operating lease option to extend term Lessee Operating Lease Renewal Term Debt securities, aggregate cost basis Investments, Adjusted Cost Available For Sale Debt Securities Amortized Cost Basis Software Software And Software Development Costs [Member] Statistical Measurement Range [Axis] 2027 and thereafter Lessee Operating Lease Liability Payments Due After Year Four Lessee operating lease liability payments due after year four. 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Entity Address, Postal Zip Code Entity Address Postal Zip Code Document Fiscal Period Focus Document Fiscal Period Focus Proceeds from loans Proceeds From Payment Agreements With Financing Entity Proceeds from payment agreements with financing entity. Accounts receivable Increase Decrease In Accounts Receivable APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Stock-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Inventory and Other Deferred Costs Inventory And Other Deferred Costs Policy Policy [Text Block] Inventory and other deferred costs, policy. 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Summary of Weighted-average Assumptions Used in Determination of Fair Value of Stock Options Schedule Of Share Based Payment Award Employee Stock Purchase Plan Valuation Assumptions Table [Text Block] Transaction Type Transaction Type [Axis] Lease expiration date Lease Expiration Date1 Short-term Investments Short Term Investments Policy Policy [Text Block] Short-term investments, policy. Performance-Based Stock Option Performance Based Stock Option [Member] Performance-based stock option. 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Reconciliation of cash, cash equivalents and restricted cash to the condensed consolidated balance sheets: Reconciliation Of Cash Cash Equivalents And Restricted Cash [Abstract] Reconciliation of cash cash equivalents and restricted cash. Number of shares issued Proceeds from follow-on equity offering, net of offering costs, shares Stock Issued During Period Shares New Issues Customer deposits Contract With Customer Deposits Current Contract with customer deposits current. All Other Customers All Other Customers [Member] All other customers. Assets Assets Fair Value Disclosure [Abstract] Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total Restricted stock units vested Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Total costs and expenses Costs And Expenses Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Stock-Based Compensation Share Based Compensation Option And Incentive Plans Policy Contract liability, revenue recognized Contract With Customer Liability Revenue Recognized Other long-term liabilities Increase Decrease In Other Noncurrent Liabilities Loss from operations Operating Income Loss Operating lease, option to extend Lessee Operating Lease Option To Extend Additional paid-in capital Additional Paid In Capital Common Stock Significant Customers Significant Customers [Member] Significant customers. Assets, Unrealized Gains Assets Gross Unrealized Gains Assets, gross unrealized gains. 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Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Effect of exchange rates on cash, cash equivalents and restricted cash Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Asset Class Fair Value By Asset Class [Axis] Entity Tax Identification Number Entity Tax Identification Number Income Statement Location Income Statement Location [Axis] Unvested Restricted Stock Units, Number of Shares, forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Retained Earnings (Accumulated Deficit), Total Accumulated deficit Retained Earnings Accumulated Deficit Equity Components Statement Equity Components [Axis] Accounting Standards Update Type Of Adoption [Member] Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Total accrued and other current liabilities Accrued and other current liabilities Accrued Liabilities And Other Liabilities Current Accrued liabilities and other liabilities current. Leases [Abstract] Contract with Customer, Liability, Total Contract liabilities Contract With Customer Liability Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Entity Emerging Growth Company Entity Emerging Growth Company Interest Expense, Debt, Total Interest expense Interest Expense Debt Options vested and exercisable, Number of Shares Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number AbbVie Inc Abb Vie Inc [Member] AbbVie Inc. Proceeds from maturities of available-for-sale debt securities Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities Payment of debt Debt Instrument Periodic Payment Principal Revenue Recognition Revenue Recognition Policy [Text Block] Cost of Revenue, Total Cost of revenue Cost Of Revenue Expected term (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Transaction Transaction [Domain] June 2023 Tranche Three [Member] Tranche three. Volatility, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum Document Transition Report Document Transition Report Assets, Fair Value Disclosure, Total Assets, Fair Value Assets Fair Value Disclosure Grant-date fair value per share Unvested Restricted Stock Units, Weighted-Average Grant Date Fair Value, granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Summary of Shares of Common Stock Reserved for Issuance Summary Of Shares Of Common Stock Available For Issuance Table [Text Block] Summary of shares of common stock available for issuance. Depreciation, Depletion and Amortization, Total Depreciation and amortization expense Depreciation and amortization Depreciation Depletion And Amortization Inventory And Other Deferred Costs [Abstract] Inventory and other deferred costs. GSK plc G S K plc [Member] G S K plc. Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Restricted stock units vested, shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Total inventory and other deferred costs Inventory and other deferred costs Inventory And Other Deferred Costs Inventory and other deferred costs. 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Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary of significant accounting policies. Lease incentive cash receipts Proceeds From Collection Of Lease Receivables Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Payment Agreement with Financing Entity Payment Agreement With Financing Entity [Member] Payment agreement with financing entity. Security Exchange Name Security Exchange Name Revenue From Contract With Customer [Abstract] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Net cash used in operating activities Net Cash Provided By Used In Operating Activities Unrecognized stock-based compensation of unvested options, recognized over weighted-average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Performance-based stock option activity, remaining contractual term Outstanding Options, Weighted-Average Remaining Contractual Term (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Amortization of premium on short-term investments Amortization Of Premium Discount On Short Term Investments Amortization of premium (discount) on short-term investments. Commitments And Contingencies Disclosure [Abstract] Accrued taxes Accrued Income Taxes Current Operating lease cost Operating Lease Cost RSUs Restricted Stock Units Restricted Stock Units R S U [Member] Schedule of Future Minimum Lease Payments Lessee Operating Lease Liability Maturity Table [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] 2019 Plan and Inducement Plan Two Thousand Nineteen Equity Incentive Plan And Two Thousand Twenty Inducement Plan [Member] Two thousand nineteen equity incentive plan and two thousand twenty inducement plan. Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares, outstanding Common Stock Shares Outstanding Imputed interest rate Debt Instrument Imputed Interest Rate Debt instrument imputed interest rate. Cost of Revenue Cost Of Sales Policy [Text Block] Over-Allotment Option Over Allotment Option [Member] Loans Debt Disclosure [Text Block] Level 2 Fair Value Inputs Level2 [Member] Debt Securities, Available-for-Sale, Total Debt securities, fair value Investments, Fair Value Available For Sale Securities Debt Securities Cash flows from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Options To Purchase Common Stock Options To Purchase Common Stock [Member] Options to purchase common stock. 2019 Employee Stock Purchase Plan Two Thousand Nineteen Employee Stock Purchase Plan [Member] Two thousand nineteen employee stock purchase plan. Commitments and Contingencies (Note 9) Commitments And Contingencies Common stock, shares, issued Common Stock Shares Issued Inventory and other deferred costs Increase Decrease In Inventories And Other Deferred Costs Increase (decrease) in inventories and other deferred costs. U.S. Government Securities U S Treasury Securities [Member] Minimum Minimum [Member] May 2023 Debt Instrument Redemption Period Three [Member] Schedule of Accrued and Other Current Liabilities Accrued Liabilities And Other Liabilities Disclosure Current Table [Text Block] Accrued liabilities and other liabilities disclosure current. Risk-free interest rate, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum Leases Lessee Leases Policy [Text Block] Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Accrued Liabilities, Current, Total Accrued liabilities Accrued Liabilities Current Period between payment by customer and transfer of promised services Period Between Payment By Customer And Transfer Of Promised Services Period between payment by customer and transfer of promised services. Stockholders’ equity Stockholders Equity [Abstract] Debt Disclosure [Table] Debt Disclosure [Table] Debt disclosure. Unvested Restricted Stock Units, Weighted-Average Grant Date Fair Value, forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Award Type Award Type [Axis] Other Noncash Income (Expense), Total Other Other Noncash Income Expense Standard payment terms Contract With Customer Standard Payment Terms Contract with customer standard payment terms. Operating lease landlord agreed to contribution amount, approximate Operating Lease Landlord Agreed To Contribution Amount Operating lease landlord agreed to contribution amount. Other Nonoperating Income (Expense), Total Other income (expense), net Other Nonoperating Income Expense Long-Term Debt, Current Maturities, Total Less: current portion (included in accrued and other current liabilities) Long Term Debt Current Merck & Co., Inc. Merck Co Inc [Member] Merck & co., Inc. Research and Development Expense, Total Research and development Research And Development Expense Total future minimum lease payments Lessee Operating Lease Liability Payments Due Lease term Lessee Operating Lease Term Of Contract Entity Central Index Key Entity Central Index Key Short-Term Investments, Total Short-term investments Short Term Investments Customer Major Customers [Axis] Accounting Policies [Abstract] Accrued and other current liabilities Increase Decrease In Accrued Liabilities And Other Operating Liabilities Debt Instrument, Redemption, Period Debt Instrument Redemption Period [Axis] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated depreciation and amortization Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Measurement Frequency Fair Value By Measurement Frequency [Axis] Reserved for future option and award grants (in shares) Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Stock-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Organization Consolidation And Presentation Of Financial Statements [Abstract] Number of equal payments Number Of Equal Payments Number of equal payments. 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Total carrying amount Long Term Debt Beginning balance, shares Ending balance, shares Shares Outstanding Prepaid expenses and other assets Increase Decrease In Prepaid Deferred Expense And Other Assets Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Customer Concentration Risk Customer Customer Concentration Risk [Member] Performance-based stock option activity, number of shares Outstanding Options, Number of Shares, Beginning Balance Outstanding Options, Number of Shares, Ending Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Document Fiscal Year Focus Document Fiscal Year Focus 2024 Lessee Operating Lease Liability Payments Due Year Two Earnings Per Share, Basic, Total Net loss per common share-basic Net loss per share, basic Earnings Per Share Basic Assets Assets [Abstract] Volatility, minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Shares issued price per share Shares Issued Price Per Share Principal Principal amount Debt Instrument Face Amount Financial Instrument Financial Instrument [Axis] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Liabilities and Stockholders’ Equity Liabilities And Stockholders Equity [Abstract] Employee ESPP contributions Accrued Employee Benefits Current Antidilutive Securities, Name Antidilutive Securities Name [Domain] July 2021 Tranche One [Member] Tranche one. Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net loss Profit Loss Current assets Assets Current [Abstract] Dividends, Common Stock, Total Dividends Dividends Common Stock September 2023 Tranche Five [Member] Tranche five. Repayments of loans Repayments Of Payment Agreements With Financing Entity Repayments of payment agreements with financing entity. Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Payables And Accruals [Abstract] Measurement Frequency Fair Value Measurement Frequency [Domain] Changes in operating assets and liabilities Increase Decrease In Operating Capital [Abstract] Concentration of Credit Risk and Other Risks and Uncertainties Concentration Of Credit Risk And Other Risks And Uncertainties Policy Policy [Text Block] Concentration of credit risk and other risks and uncertainties policy. Lease cost Lease Cost [Abstract] Noninterest bearing rate Debt Instrument Noninterest Bearing Rate Debt instrument noninterest bearing rate. Cover [Abstract] Pfizer Inc. Pfizer Inc [Member] Pfizer Inc. Revenue Concentration risk percentage Concentration Risk Percentage1 Unvested Restricted Stock Units, Number of Shares, vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period China Operations China Operations [Member] China operations. Assets, Unrealized Losses Assets Gross Unrealized Losses Assets, gross unrealized losses. Current liabilities Liabilities Current [Abstract] Maximum Maximum [Member] Unvested Restricted Stock Units, Aggregate Fair Value Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested Unrealized gain (loss) on available-for-sale debt securities Change in unrealized gain (loss) on available-for-sale debt securities Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Outstanding Options, Number of Shares, exercised Proceeds from exercise of stock options, shares Stock Issued During Period Shares Stock Options Exercised Common stock, $0.0001 par value - 200,000,000 shares authorized; 45,955,866 and 44,904,512 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively Common Stock Value Outstanding Stock Based Compensation Expense by Award Type and Function Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block] Use of Estimates Use Of Estimates Preferred stock, $0.0001 par value — 10,000,000 shares authorized; none issued Preferred Stock Value Outstanding Accounts Receivable Accounts Receivable [Member] Proceeds from exercise of stock options Stock Issued During Period Value Stock Options Exercised Performance-based stock option activity, Fully vested and exercisable intrinsic value Options vested and exercisable, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value Common stock, shares authorized Common Stock Shares Authorized Trading Symbol Trading Symbol Selling, General and Administrative Expense, Total Selling, general and administrative Selling General And Administrative Expense Comprehensive loss Comprehensive Income Net Of Tax Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Accounts Payable, Current, Total Accounts payable Accounts Payable Current Loans Payable, Current, Total Loans—current portion (Note 6) Loans Payable Current Investments, Unrealized Losses Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax Plan Name Plan Name [Axis] Concentration Risk Type Concentration Risk Type [Domain] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Schedule of Percentage of Revenue and Accounts Receivables from Customers Schedules Of Concentration Of Risk By Risk Factor [Text Block] Cash and cash equivalents, Unrealized Losses Cash And Cash Equivalents Gross Unrealized Losses Cash and cash equivalents, gross unrealized losses. Common stock, par value Common Stock Par Or Stated Value Per Share Variable lease cost Variable Lease Cost Unvested Restricted Stock Units, Number of Shares, granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Common stock shares purchased Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award Outstanding Options, Weighted-Average Exercise Price, granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Long-Term Debt, Type Longterm Debt Type [Domain] Potentially dilutive securities excluded from computation of diluted net loss per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Cash and cash equivalents, Fair Value Cash And Cash Equivalents Fair Value Disclosure