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Market Capitalization Less than $6.8 billion Market Capitalization Four [Member] Stock Options, Exercised Exercise of stock options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Cobalt success payment Cobalt success payment Maximum Potential Success Payments Maximum potential success payments. Vesting of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Gross Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Current Fiscal Year End Date Current Fiscal Year End Date Significant accounting policies Significant Accounting Policies Policy [Text Block] Significant accounting policies. Document Quarterly Report Document Quarterly Report South San Francisco, CA CALIFORNIA Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Entity Address State Or Province Entity Address, State or Province Available For Sale Debt Securities Material Loss Available For Sale Debt Securities Material Loss Available-for-sale debt securities material loss Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unvested as of December 31, 2025 Unvested as of March 31, 2026 Mayo Clinic Election Mayo Clinic Election [Member] Mayo clinic election. Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive loss Gross Unrealized Holding Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax License and collaboration agreements. License And Collaboration Agreements [Abstract] Number of shares available for future issuance Common Stock, Capital Shares Reserved for Future Issuance Class of Warrant or Right [Domain] Geographical Geographical [Axis] Marketable securities Marketable Securities, Current Schedule of Stock Based Compensation Expense Recognized Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Accrued bonuses Accrued Bonuses, Current Accrued liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] License and Collaboration Agreements Collaborative Arrangement Disclosure [Text Block] Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive loss: Proceeds from maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities Subsequent Event Subsequent Event [Member] Subsequent Event Property, Plant and Equipment [Abstract] Other non-current assets Other Assets, Noncurrent Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Maximum term for success payment Business Acquisition Maximum Term For Success Payment Maximum​ term for success payment. 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Option to extend the lease term Lessee, Operating Lease, Option to Extend Aggregated consideration paid Total Value Of Consideration Paid Under License Agreement Total value of consideration paid under license agreement. Preferred Stock, Value, Issued Preferred stock, $0.0001 par value; 50,000 shares authorized; zero shares issued and outstanding as of March 31, 2026 and December 31, 2025 Minimum Minimum Minimum [Member] Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Financial Instrument Financial Instrument [Axis] Assets, Current [Abstract] Current assets: Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Segment Reporting [Abstract] Fair Value Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Current liabilities: Liabilities, Current [Abstract] Underwriters Option To Purchase Additional Shares [Member] Underwriters option to purchase additional shares. 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Commitments and Contingencies Commitments and contingencies (Note 10) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Unvested as of December 31, 2025 Unvested as of March 31, 2026 Multiple of Equity Value at Issuance, 5x Milestone One [Member] Milestone one. General and administrative General and Administrative Expense [Member] Present value of operating lease liabilities Operating Lease, Liability Restricted cash, current Restricted cash Restricted Cash, Current Lease termination fees incurred Lease Termination Fees Incurred Lease termination fees incurred. Lessee Lease Description [Table] Lessee, Lease, Description [Table] Principal payments net for tenant improvement loan Principal payments net for tenant improvement loan Principal payments, net for tenant improvement loan Principal payments, net for tenant improvement loan Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Long-term Financial Liabilities Long Term Financial Liabilities [Member] Long term financial liabilities. Cobalt Cobalt Success Payment Liability Cobalt Success Payment Liability [Member] Cobalt success payment liability. Share-Based Payment Arrangement, Recognized Amount [Abstract] Weighted-average number of common shares - basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted-average number of common shares - basic Weighted Average Number of Shares Outstanding, Basic Harvard College Harvard College [Member] Harvard College. Change in the estimated fair value of success payment liabilities Change In Fair Value Of Success Payment Liabilities Change in fair value of success payment liabilities. Short-term Marketable Securities Short Term Marketable Securities [Member] Short-term marketable securities. Square feet Area of leased space. Area Of Leased Space Pre-funded Warrants Not Exercise If Holder Together Owns Maximum Percentage of Number Of Common Stock Outstanding Pre-funded Warrants Not Exercise If Holder Together Owns Maximum Percentage of Number Of Common Stock Outstanding Pre-funded warrants not exercise if holder together owns maximum percentage of number of common stock outstanding Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Description Of Organization [Line Items] Description Of Organization [Line Items] Description of organization. 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Rule 10B51Trading Plan Two [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Multiple of Equity Value at Issuance, 30x Milestone Four [Member] Milestone four. Success Payment Liabilities Success Payment Liabilities [Member] Success payment liabilities. Multiple of Equity Value at Issuance, 20x Milestone Three [Member] Milestone three. Support Functions Support functions. Support functions IPR&D In Process Research And Development Intangible Asset [Member] In process research and development intangible asset. Related and Nonrelated Parties [Axis] Nathan Hardy [Member] Nathan Hardy [Member] Entity Address City Or Town Entity Address, City or Town Business Combination, Contingent Consideration, Liability, Total Contingent consideration Business Combination, Contingent Consideration, Liability Security Exchange Name Security Exchange Name Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property and equipment, at cost Property, Plant and Equipment, Gross Counterparty Name Counterparty Name [Axis] Measurement Input Type Measurement Input Type [Domain] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Patrick Yang [Member] Patrick Yang [Member] Cobalt Contingent Consideration Cobalt Contingent Consideration Liability [Member] Cobalt contingent consideration liability. Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total Cash, cash equivalents, and restricted cash at beginning of period Cash, cash equivalents, and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Statistical Measurement Statistical Measurement [Domain] Class of Warrant or Right, Exercise Price of Warrants or Rights Exercise price of common stock per share Total current assets Assets, Current Total stock-based compensation expense Share-Based Payment Arrangement, Expense Document Period End Date Document Period End Date Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Lessee Operating Lease Liability Payments Due Year Four And Thereafter Lessee operating lease liability payments due year four and thereafter. 2031 and thereafter Stock Options Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Accrued paid time off Accrued Vacation, Current Fremont California. Fremont, CA Fremont, California Fremont California [Member] Accrued payroll Accrued Salaries, Current Statement of Financial Position [Abstract] Unvested RSUs Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Increase decrease in operating lease right-of-use assets Increase Decrease In Operating Lease Right Of Use Asset Increase decrease in operating lease right of use asset. Accrued property and equipment Accrued Property And Equipment Current Accrued property and equipment current. Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Total liabilities Liabilities Financial Instruments Financial Instruments [Domain] Laboratory Equipment Laboratory Equipment [Member] Laboratory equipment. Lessee, Operating Lease, Liability, to be Paid, Year Two 2028 Restricted Cash Restricted Cash, Total Standby letters of credit Restricted Cash Unvested Restricted Common Stock Restricted Stock Restricted Stock [Member] Schedule of Additional Information Related to Operating Leases Operating Leases Additional Information Table [Text Block] Operating leases additional information. Indefinite-Lived Intangible Assets, Major Class Name Indefinite-Lived Intangible Assets, Major Class Name [Domain] Unrealized losses less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Weighted-average number of common shares - diluted Weighted-average number of common shares - diluted Weighted Average Number of Shares Outstanding, Diluted Entity File Number Securities Act File Number OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Unrealized loss on marketable securities, net Cover [Abstract] Bothell, WA Bothell, Washington Bothell Washington [Member] Bothell, Washington. Expected volatility, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Measurement Input Type Measurement Input Type [Axis] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period August two thousand twenty five underwritten public offering. August 2025 Underwritten Public Offering Number of Operating Segments Number of operating segment Sale of Stock Sale of Stock [Domain] Segment Reporting Disclosure [Text Block] Segment Reporting General and Administrative Expense, Total General and administrative General and Administrative Expense Nonvested Restricted Stock Shares Activity [Table Text Block] Summary of RSU Activity Estimated fair value of contingent consideration, long-term liabilities Business Combination, Contingent Consideration, Liability, Noncurrent Contingent consideration, net of current portion Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total Stock Options, Forfeited/Cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Subsequent Event [Table] Vesting of restricted stock (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Weighted-Average Remaining Contractual Life (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Recent accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Reconciliation of Undiscounted Operating Lease Cash Flows by Fiscal Year to Present Value of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Additional potential Cobalt Contingent Consideration Additional Potential Contingent Consideration Additional potential contingent consideration. Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Multiple of Equity Value at Issuance, 40x Milestone Five [Member] Milestone five. Risk free interest rate, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Depreciation Depreciation Depreciation, Total Depreciation expense Research, Development, And Laboratory Research, development, and laboratory Research development and laboratory. Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Mayo Clinic Initial Shares [Member] Mayo clinic initial shares. Mayo Clinic Initial Shares Common stock, shares outstanding Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Less: current portion of operating lease liabilities Operating lease liabilities Operating Lease, Liability, Current Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Document Transition Report Document Transition Report Operating Expenses Total operating expenses Research and Development Expense Research and Development Expense, Total Research and development Asset Impairment Charges Asset Impairment Charges, Total Impairment of long-lived assets Non-cash impairment loss Statement of Cash Flows [Abstract] Weighted-Average Grant Date Fair Value per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Increase decrease in operating lease right-of-use liabilities Increase Decrease In Operating Lease Right Of Use Liabilities Increase decrease in operating lease right of use liabilities. Stock Issued During Period, Value, New Issues Issuance of common stock, net of offering costs Aggregate common stock value sold Summary of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Stockholders' Equity Equity [Text Block] Earnings Per Share [Text Block] Net Loss per Share Developmental and commercial milestone payments and royalties on licensed products payable Potential Amount Of Milestone Payments And Royalties Payable Potential amount of milestone payments and royalties payable. Computer Equipment, Software and Other Computer Equipment [Member] Net loss Net loss Long-term Marketable Securities Long Term Marketable Securities [Member] Long-term marketable securities. Operating lease cost Operating Lease, Cost Threshold market capitalization Threshold Market Capitalization Threshold market capitalization. Expected dividend Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Intangible Assets, Net (Excluding Goodwill), Total Intangible asset Intangible Assets, Net (Excluding Goodwill) Aggregate Intrinsic Value, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value ASSETS Assets [Abstract] Construction In Progress Construction in Progress [Member] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Document Fiscal Year Focus Document Fiscal Year Focus Other Assets Other Assets [Member] INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Retirement Benefits [Abstract] Accounts Payable, Current, Total Accounts payable Accounts Payable, Current Research and Development Expense Research and Development Expense Research and Development Expense [Member] Optional additional tenant improvement allowance, interest rate Optional Tenant Improvement Allowance Interest Rate Optional tenant improvement allowance interest rate. Proceeds from disposal of assets Proceeds from Sale of Productive Assets Proceeds from Sale of Productive Assets, Total Exercise Of Pre-Funded Warrants Shares Exercise of pre-funded warrants shares. Exercise of pre-funded warrants (in shares) Optional additional tenant improvement allowance Optional Tenant Improvement Allowance Optional additional tenant improvement allowance. Harvard Harvard Success Payment Liability Harvard Success Payment Liability [Member] Harvard Success Payment Liability. Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest [Abstract] Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Lessee, Operating Lease, Liability, to be Paid, Year One 2027 Investments in securities with maturities period Investments Securities Maturities Period Investments securities maturities period. Operating lease right-of-use assets and liabilities Increase Decrease In Operating Lease Right Of Use Assets And Liabilities Amount of increase decrease in operating lease right-of-use assets and operating lease liabilities. Short-term Financial Liabilities Short Term Financial Liabilities [Member] Short term financial liabilities. Purchase Agreement Purchase Agreement [Member] Purchase agreement. Share-Based Payment Arrangement [Abstract] Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Unrecognized stock-based compensation expense (in thousands) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Sale of Stock Sale of Stock [Axis] Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by investing activities Title of 12(b) Security Title of 12(b) Security Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Money Market Funds Money Market Funds [Member] Related and Nonrelated Parties [Domain] Income Taxes Income Tax Disclosure [Text Block] Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Market Capitalization Equal to or Exceeds $8.1 billion Market Capitalization One [Member] Market capitalization one. Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2026 (remaining 9 months) Other non-current liabilities Other Liabilities, Noncurrent Consolidated Entities Consolidated Entities [Axis] Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Letter of credit Letters of Credit Outstanding, Amount Weighted-Average Exercise Price per Share Outstanding, Beginning Balance Weighted-Average Exercise Price per Share Outstanding, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Proceeds from employee stock purchase plan and exercise of stock options Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Income Tax Disclosure [Abstract] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Accrued expenses and other current liabilities: Accrued Liabilities and Other Liabilities [Abstract] Acquisitions Business Combination [Text Block] Summary of Potential Success Payments Summary Of Potential Success Payments Harvard Table [Text Block] Summary of potential success payments and common stock price required for payment to Harvard. Additional Paid-in Capital Additional Paid-in Capital [Member] Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Per share common stock price required for payment Common Stock Price Per Share Required For Payment Common stock price per share required for payment. Measurement Frequency Measurement Frequency [Domain] Income Statement Location Statement of Income Location, Balance [Axis] Trading Symbol Trading Symbol Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Risk free interest rate, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Subsequent Event Type [Axis] Total accrued compensation Accrued compensation Employee-related Liabilities, Current FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Expected term (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Fair Value, Recurring Fair Value, Recurring [Member] Entity Ex Transition Period Entity Ex Transition Period Total undiscounted lease payments Obligation to pay base rent Lessee, Operating Lease, Liability, to be Paid Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Percentage allowed for eligible employees to purchase shares of common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate Goodwill and Intangible Asset Impairment, Total Business acquisition, impairment of intangible assets or goodwill Goodwill and Intangible Asset Impairment Equity Components Equity Components [Axis] Equity Component Equity Component [Domain] Asset Class Asset Class [Axis] Description of Pre-funded Warrants Exerciable Description of Pre-funded Warrants Exerciable Description of pre-funded warrants exerciable Business Acquisition Business Combination [Axis] Common stock shares issued Stock Issued During Period Value Common Stock In Connection With License Agreement Stock issued during period, value, common stock in connection with license agreement. Two Thousand Twenty One Incentive Award Plan [Member] 2021 Incentive Award Plan 2021 Incentive Award Plan. Statement of Comprehensive Income [Abstract] Maximum Maximum [Member] Statistical Measurement Statistical Measurement [Axis] Weighted-Average Exercise Price per Share, Exercised Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Common Stock, Value, Issued Common stock, $0.0001 par value; 750,000 shares authorized; 269,817 and 266,732 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively February two thousand twenty four underwritten public offering. February 2024 Underwritten Public Offering. Cobalt Biomedicine, Inc Cobalt Biomedicine Inc [Member] Cobalt Biomedicine, Inc. Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment of long-lived assets Expense in connection with change in estimated fair value of success payment liability Change in estimated fair value of success payment Gain Expense In Connection With Change In Estimated Fair Value Of Success Payment Liabilities Gain expense in connection with change in estimated fair value of success payment liabilities. Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Preferred stock, shares authorized Preferred Stock, Shares Authorized Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss, Total Total unrealized losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Schedule Of Business Acquisitions By Acquisition [Table] Business Combination [Table] Entity Registrant Name Entity Registrant Name Gross Unrealized Holding Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Other Nonoperating Income (Expense), Total Other Nonoperating Income (Expense) Other income, net Other income, net Additional Paid in Capital, Total Additional paid-in capital Additional Paid in Capital Subsequent Events [Abstract] Consolidated Entities Consolidated Entities [Domain] Measurement Frequency Measurement Frequency [Axis] Proceeds from Issuance of Common Stock Net proceeds from issuance of common stock gross proceeds Contingent Consideration by Type Business Combination, Contingent Consideration, Type [Axis] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Summary of Estimated Fair Value of Liabilities using Unobservable Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Liability Class Liability Class [Axis] Success payment liabilities Success Payment Liabilities Noncurrent Success payment liabilities noncurrent. Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss) Payments to Acquire Property, Plant, and Equipment, Total Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period TOTAL ASSETS Assets Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment [Table] Weighted-Average Remaining Contractual Life (years), Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Income Statement [Abstract] Weighted-Average Weighted Average [Member] Stock Issued During Period, Shares, New Issues Aggregate common stock sold Issuance of common stock, net of offering costs (in shares) Lease, Cost [Abstract] Lease, Cost [Abstract] Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Business Combination [Abstract] Diluted earnings (loss) per common share Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Net loss per common share - diluted Summary of Segment Loss Including Segment Expenses Schedule of Segment Reporting Information, by Segment [Table Text Block] Lease arrangement, contractual expiration period, beginning year Operating Lease Expiration Beginning Month And Year Operating lease expiration beginning month and year. City Area Code City Area Code Payment to collaborators Payment To Collaborators Payment to collaborators. Technical operations and manufacturing Technical Operations And Manufacturing Technical operations and manufacturing. Business Acquisition [Line Items] Business Combination [Line Items] Prior Sales Agreement [Member] Prior sales agreement. Prior Sales Agreement Market Capitalization Equal to or exceeds $7.4 billion, but less than $8.1 billion Market Capitalization Two [Member] Market capitalization two. Counterparty Name Counterparty Name [Domain] Reimbursement of tenant improvements Reimbursement Of Tenant Improvements Reimbursement of tenant improvements. Share-Based Compensation Expense Share-based compensation expense. Stock-based compensation Cobalt Success Payment Potential Success Payment Potential success payment. Variable lease cost Variable Lease, Cost Weighted-average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Real Estate Real Estate [Domain] Total lease cost Lease, Cost Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Restricted Cash Restricted Assets Disclosure [Text Block] Cambridge, Massachusetts and South San Francisco, California Cambridge, Massachusetts And South San Francisco, California [Member] Cambridge Massachusetts and South San Francisco California. Loss from operations Loss from operations Operating Income (Loss) Accumulated Deficit Retained Earnings [Member] Contingent Consideration Type Business Combination, Contingent Consideration, Type [Domain] Share-Based Payment Arrangement, Noncash Expense, Total Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Expected Stock Price Volatility Measurement Input, Price Volatility [Member] Fees related to common stock financings, net Payments of Stock Issuance Costs Fair value less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Weighted-average incremental borrowing rate Operating Lease, Weighted Average Discount Rate, Percent Operating lease liabilities, net of current portion Operating Lease, Liability, Noncurrent Level 1 Fair Value, Inputs, Level 1 [Member] Class Of Stock [Line Items] Class of Stock [Line Items] Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by (used in) financing activities Research and development related success payments and contingent consideration Research And Development Related Success Payments And Contingent Consideration Changes in estimated fair value of success payment liabilities and contingent consideration recorded in research and development expenses. Summary of Lease Costs Lease, Cost [Table Text Block] Industrial Industrial Property [Member] Construction in progress costs write-off Construction In Progress Costs Write Off Construction in progress costs write-off. At-the-market facility. At The Market Offering At The Market Offering ATM facility Anti-dilutive Securities Excluded from Computation of Diluted Net Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Corporate Debt Securities Corporate Debt Securities [Member] Entity Interactive Data Current Entity Interactive Data Current Income Statement Location Statement of Income Location, Balance [Domain] OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Success payment(s) Potential Success Payments Potential success payments. Real Estate, Type of Property Real Estate, Type of Property [Axis] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Changes in fair value - expense (gain) Entity Tax Identification Number Entity Tax Identification Number Local Phone Number Local Phone Number Short-term lease cost Short-Term Lease, Cost Accrued compensation: Employee-related Liabilities, Current [Abstract] Facility costs Facility Costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Fees incurred related to common stock financings Fees incurred related to common stock financings/issuance of common stock from at the market offering Fees incurred related to common stock financings Accounting Policies [Abstract] Other Current Liabilities [Member] Other Current Liabilities Short-term Liabilities Investments and Cash Investments and Cash, Total Cash, cash equivalents and marketable securities Commencement Dates, Beginning Operating Lease Commencement Beginning Month And Year Operating lease commencement beginning month and year. Lessee, Operating Lease, Liability, to be Paid, Year Four 2030 Weighted-average period costs expected to be recognized (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Accrued professional fees Accrued Professional Fees, Current Schedule Of Stock By Class [Table] Stock, Class of Stock [Table] Entity Emerging Growth Company Entity Emerging Growth Company Indefinite-Lived Intangible Assets Indefinite-Lived Intangible Assets [Axis]