Entity Central Index Key Amortization of discounts premiums investments cash equivalent and short term investment. Cost of goods sold excluding amortization. Settlement and license charges. Interest (expense) income and other, net. Cover [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Incorporation State Country Code Entity Address, Address Line One Entity Address Address Line1 Entity Address, Address Line Two Entity Address Address Line2 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Document Annual Report Document Annual Report Document Transition Report Document Transition Report Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Documents Incorporated by Reference Documents Incorporated By Reference [Text Block] Statement Of Financial Position [Abstract] Assets Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Short-term investments Short Term Investments Accounts receivable Accounts Receivable Net Current Inventory Inventory Net Other current assets Other Assets Current Total current assets Assets Current Property and equipment, net Property Plant And Equipment Net Intangible assets, net Finite Lived Intangible Assets Net Right of use assets, net Operating Lease Right Of Use Asset Other non-current assets Other Assets Noncurrent Total assets Assets Liabilities and Stockholders’ Equity Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses Accrued Liabilities Current Other current liabilities Other Liabilities Current Total current liabilities Liabilities Current Long-term debt Long Term Loans Payable Lease liabilities Operating Lease Liability Noncurrent Other non-current liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 21) Commitments And Contingencies Stockholders’ equity: Stockholders Equity [Abstract] Preferred stock, $.0001 par value, 3,333,333 shares authorized; none issued and outstanding Preferred Stock Value Common stock, $.0001 par value, 99,000,000 shares authorized; 75,184,863 and 71,071,887 issued and outstanding at December 31, 2019 and 2018, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated other comprehensive income (loss), net of tax Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, issued Common Stock Shares Issued Common stock, outstanding Common Stock Shares Outstanding Income Statement [Abstract] Revenues: Revenues [Abstract] Product, net Revenue From Contract With Customer Excluding Assessed Tax Type of Revenue [Extensible List] Type Of Revenue Extensible List Total revenues Revenues Cost and expenses: Costs And Expenses [Abstract] Cost of sales (excluding amortization of in-licensed rights) Cost Of Goods Sold Excluding Amortization Research and development Research And Development Expense Excluding Acquired In Process Cost Selling, general and administrative Selling General And Administrative Expense Acquired in-process research and development Research And Development In Process Settlement and license charges Settlement And License Charges Amortization of in-licensed rights Amortization Of Intangible Assets Total cost and expenses Costs And Expenses Operating loss Operating Income Loss Other (loss) income: Nonoperating Income Expense [Abstract] Other expense, net Other Nonoperating Expense Gain from sale of Priority Review Voucher Gain Loss On Disposition Of Intangible Assets Total other (loss) income Nonoperating Income Expense Loss before income tax expense (benefit) Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax expense (benefit) Income Tax Expense Benefit Net loss Net Income Loss Other comprehensive loss: Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Unrealized gains (losses) on investments Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Total other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Comprehensive loss Comprehensive Income Net Of Tax Net loss per share — basic and diluted Earnings Per Share Basic And Diluted Weighted average number of shares of common stock used in computing basic and diluted net loss per share Weighted Average Number Of Share Outstanding Basic And Diluted Issuance of common stock for cash net of offering costs shares. Issuance of common stock for cash net of offering costs. Adjustments to additional paid in capital purchase of capped call share options. Stock issued during period shares stock options and appreciations rights exercised. Stock issued during period value stock options and stock appreciation rights exercised. Stock issued during period share for collaboration agreement. Stock issued during period value for collaboration agreement. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-In Capital [Member] Additional Paid In Capital [Member] Accumulated Other Comprehensive (Loss) Gain [Member] Accumulated Net Unrealized Investment Gain Loss [Member] Accumulated Deficit [Member] Retained Earnings [Member] Statement [Line Items] Statement [Line Items] BALANCE BALANCE (in shares) Shares Outstanding Exercise of options for common stock Stock Issued During Period Value Stock Options Exercised Exercise of options for common stock, shares Stock Issued During Period Shares Stock Options Exercised Exercise of options and stock appreciation rights for common stock Stock Issued During Period Value Stock Options And Stock Appreciation Rights Exercised Exercise of options and stock appreciation rights for common stock, shares Stock Issued During Period Shares Stock Options And Appreciations Rights Exercised Grant of restricted stock awards and vest of restricted stock units, net of cancellations Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Grant of restricted stock awards and vest of restricted stock units, net of cancellations, shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Shares withheld for taxes Adjustments Related To Tax Withholding For Share Based Compensation Shares withheld for taxes, shares Shares Paid For Tax Withholding For Share Based Compensation Issuance of common stock for cash, net of offering costs Issuance Of Common Stock For Cash Net Of Offering Costs Issuance of common stock for cash, net of offering costs, shares Issuance Of Common Stock For Cash Net Of Offering Costs Shares Issuance of common stock for collaboration agreement Stock Issued During Period Value For Collaboration Agreement Issuance of common stock for collaboration agreement, shares Stock Issued During Period Share For Collaboration Agreement Issuance of common stock under employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Issuance of common stock under employee stock purchase plan, shares Stock Issued During Period Shares Employee Stock Purchase Plans Equity component of convertible notes Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Purchase of capped call share options Adjustments To Additional Paid In Capital Purchase Of Capped Call Share Options Stock-based compensation Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition Unrealized gain (loss) from available-for-sale securities Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest Net loss BALANCE BALANCE (in shares) Non-cash up-front payment. Accretion amortization of discounts and premiums short-term investments. Noncash interest expense. Increase decrease in accounts payable and accrued liabilities lease liabilities and other liabilities. Taxes paid related to net share settlement of equity awards. Repayment of term loan. Purchase of capped call options. Shares withheld for tax included in accrued expenses. Accrued debt discount and issuance costs. Non cash or part non cash reclassification of long term investments to short term investments Statement Of Cash Flows [Abstract] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] December Two Thousand Nineteen Term Loan [member]. December 2019 Term Loan [Member] December Two Thousand Nineteen Term Loan [Member] July two thousand and seventeen term loan. July 2017 Term Loan [Member] July Two Thousand And Seventeen Term Loan [Member] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net loss Profit Loss Adjustments to reconcile net loss to cash flows in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Non-cash up-front payment to StrideBio Non Cash Up Front Payment Gain from sale of Priority Review Voucher Depreciation and amortization Depreciation Depletion And Amortization Amortization of investment discount Accretion Amortization Of Discounts And Premiums Short Term Investments Loss from debt extinguishment Gains Losses On Extinguishment Of Debt Non-cash interest expense Noncash Interest Expense Stock-based compensation Share Based Compensation Other Other Noncash Expense Changes in operating assets and liabilities, net: Increase Decrease In Other Operating Assets And Liabilities Net [Abstract] Net increase in accounts receivable Increase Decrease In Accounts Receivable Net increase in inventory Increase Decrease In Inventories Net increase in other assets Increase Decrease In Other Operating Assets Net increase in accounts payable, accrued expenses, lease liabilities and other liabilities Increase Decrease In Accounts Payable And Accrued Liabilities Lease Liabilities And Other Liabilities Net cash used in operations Net Cash Provided By Used In Operating Activities Cash flows from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Purchase of property and equipment Payments To Acquire Property Plant And Equipment Purchase of intangible assets Payments To Acquire Intangible Assets Purchase of available-for-sale securities Payments To Acquire Available For Sale Securities Debt Maturity and sales of available-for-sale securities Proceeds From Sale And Maturity Of Available For Sale Securities Proceeds from sale of Priority Review Voucher Proceeds From Sale Of Intangible Assets Purchase of restricted investment Payments To Acquire Restricted Investments Maturity of restricted investment Proceeds From Sale Of Restricted Investments Acquisition of Myonexus Therapeutics, Inc., net of cash acquired Payments To Acquire Businesses Net Of Cash Acquired Net cash provided (used) in investing activities Net Cash Provided By Used In Investing Activities Cash flows from financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from exercise of options and employee stock purchase program Proceeds From Stock Options Exercised Taxes paid related to net share settlement of equity awards Taxes Paid Related To Net Share Settlement Of Equity Awards Proceeds from sales of common stock, net of offering costs Proceeds From Issuance Of Common Stock Proceeds from Term Loan Proceeds From Issuance Of Long Term Debt Repayment of June 2015 and July 2017 Term Loan Repayment Of Term Loan Proceeds from revolving line of credit Proceeds From Long Term Lines Of Credit Repayment of revolving line of credit Repayments Of Long Term Lines Of Credit Payment for debt extinguishment Payments Of Debt Extinguishment Costs Repayment of mortgage loans and notes payable Repayments Of Debt Purchase of capped call options Purchase Of Capped Call Options Proceeds from convertible debt offering Proceeds From Convertible Debt Debt issuance costs Payments Of Debt Issuance Costs Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Increase (decrease) in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash, cash equivalents and restricted cash: Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations [Abstract] Beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations End of period Reconciliation of cash, cash equivalents and restricted cash: Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract] Restricted cash in other assets Restricted Cash Noncurrent Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List] Restricted Cash Noncurrent Asset Statement Of Financial Position Extensible List Total cash, cash equivalents and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid Net Cash paid during the period for income taxes Income Taxes Paid Net Supplemental schedule of non-cash investing activities and financing activities: Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Shares withheld for tax included in accrued expenses Shares Withheld For Tax Included In Accrued Expenses Accrued debt discount and issuance costs Accrued Debt Discount And Issuance Costs Property and equipment included in accrued expenses Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 Reclassification of long term investments to short term investments Non Cash Or Part Non Cash Reclassification Of Long Term Investments To Short Term Investments Accounting Policies [Abstract] ORGANIZATION AND NATURE OF BUSINESS Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS Significant Accounting Policies [Text Block] Organization Consolidation And Presentation Of Financial Statements [Abstract] LICENSE AND COLLABORATION AGREEMENTS Collaborative Arrangement Disclosure [Text Block] Gain (loss) from sale of intangible assets. Goodwill And Intangible Assets Disclosure [Abstract] GAIN FROM SALE OF PRIORITY REVIEW VOUCHER Gain Loss From Sale Of Intangible Assets Disclosure [Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Measurement Inputs Disclosure [Text Block] Cash And Cash Equivalents [Abstract] CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES Cash Cash Equivalents And Marketable Securities [Text Block] Accounts receivable and reserves for product sales. Receivables Net Current [Abstract] ACCOUNTS RECEIVABLE AND RESERVES FOR PRODUCT SALES Accounts Receivable And Reserves For Product Sales [Text Block] Inventory Disclosure [Abstract] INVENTORY Inventory Disclosure [Text Block] Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] OTHER ASSETS Other Assets Disclosure [Text Block] Property Plant And Equipment [Abstract] PROPERTY AND EQUIPMENT, NET Property Plant And Equipment Disclosure [Text Block] INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] Payables And Accruals [Abstract] ACCRUED EXPENSES Accounts Payable And Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] INDEBTEDNESS Debt Disclosure [Text Block] Equity [Abstract] EQUITY Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] STOCK-BASED COMPENSATION Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Compensation And Retirement Disclosure [Abstract] 401 (K) PLAN Pension And Other Postretirement Benefits Disclosure [Text Block] Other Income And Expenses [Abstract] OTHER (LOSS) INCOME Other Nonoperating Income And Expense [Text Block] Income Tax Disclosure [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Leases [Abstract] LEASES Lessee Operating Leases [Text Block] Earnings Per Share [Abstract] NET LOSS PER SHARE Earnings Per Share [Text Block] Commitments And Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments And Contingencies Disclosure [Text Block] Subsequent Events [Abstract] SUBSEQUENT EVENT Subsequent Events [Text Block] Quarterly Financial Information Disclosure [Abstract] FINANCIAL INFORMATION BY QUARTER (UNAUDITED) Quarterly Financial Information [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Estimates and Uncertainties Use Of Estimates Fair Value Measurements Fair Value Of Financial Instruments Policy Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Investments Investment Policy [Text Block] Accounts Receivable Receivables Policy [Text Block] Concentration of Credit Risk Concentration Risk Credit Risk Inventories Inventory Policy [Text Block] Property and Equipment Property Plant And Equipment Policy [Text Block] Intangible assets Intangible Assets Finite Lived Policy Impairment of Long-Lived Assets Impairment Or Disposal Of Long Lived Assets Including Intangible Assets Policy Policy [Text Block] Convertible Debt Debt Policy [Text Block] Revenue Recognition Revenue From Contract With Customer Policy [Text Block] Research and Development Research And Development Expense Policy Stock-Based Compensation Share Based Compensation Option And Incentive Plans Policy Income Taxes Income Tax Policy [Text Block] Leases Lessee Leases Policy [Text Block] Embedded Derivatives Derivatives Embedded Derivatives Commitments and Contingencies Commitments And Contingencies Policy [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Estimated Useful Lives Assets Table [Text Block] Summary of Estimated Useful Lives of Property and Equipment Estimated Useful Lives Assets Table [Text Block] Schedule of Total Consideration of Business Acquisition Schedule Of Business Acquisitions By Acquisition [Text Block] Assets and Liabilities Measured and Carried at Fair Value Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Table [Text Block] Summary of Company Financial Assets with Maturities of Less Than 90 Days Included in Cash Equivalents Schedule Of Cash And Cash Equivalents Table [Text Block] Summary of Company Cash, Cash Equivalents and Investments Schedule Of Cash Cash Equivalents And Short Term Investments Table [Text Block] Summary of Components of Accounts Receivable Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Summary of change in reserves for discounts and allowances. Summary of Change in Reserves for Discounts and Allowances Summary Of Change In Reserves For Discounts And Allowances Table [Text Block] Summary of reserves for discounts and allowances included in consolidated balance sheets. Summary of Total Reserves Included in Consolidated Balance Sheets Summary Of Reserves For Discounts And Allowances Included In Consolidated Balance Sheets Table [Text Block] Summary of Components of Inventory Schedule Of Inventory Current Table [Text Block] Summary of Other Current Assets Schedule Of Other Current Assets Table [Text Block] Summary of Other Non-current Assets Schedule Of Other Assets Noncurrent [Text Block] Summarizes Components of Property and Equipment, Net Property Plant And Equipment [Text Block] Summary of Components of Intangible Assets Schedule Of Finite Lived Intangible Assets Table [Text Block] Summary of Estimated Future Amortization for Intangible Assets Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Summary of Accrued Expenses Schedule Of Accrued Liabilities Table [Text Block] Summary of Debt Facilities Schedule Of Debt Instruments [Text Block] Summarizes Total Gross Payments Due under Company's Debt Arrangements Schedule Of Maturities Of Long Term Debt Table [Text Block] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Deferred Compensation Arrangement With Individual Share Based Payments By Type Of Deferred Compensation [Axis] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Equity Based Arrangements Individual Contracts Type Of Deferred Compensation [Domain] Stock Options [Member] Employee Stock Option [Member] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted Stock Awards (RSAs) [Member] Restricted Stock [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units R S U [Member] Assumptions for Measuring Fair Values of Stocks Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of Company's Stock Options Vested and Exercised Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value Table [Text Block] Summary of Restricted Stock Award and Restricted Stock Units Activity Schedule Of Sharebased Compensation Restricted Stock And Restricted Stock Units Activity Table [Text Block] Summary of Stock Appreciation Rights Activity Schedule Of Share Based Compensation Stock Appreciation Rights Award Activity Table [Text Block] Summary of Employee Stock Purchase Plan Activity and Expense Schedule Of Share Based Compensation Employee Stock Purchase Plan Activity Table [Text Block] Summary of Stock-Based Compensation Expense by Function Included within Consolidated Statements of Operations and Comprehensive Loss Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Stock-Based Compensation Expense by Grant Type Included within Consolidated Statements of Operations and Comprehensive Loss Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block] Summary of Other Income and Loss Schedule Of Other Nonoperating Income Expense Table [Text Block] Summary of Loss before Provision for Income Taxes by Jurisdiction Schedule Of Income Before Income Tax Domestic And Foreign Table [Text Block] Summary of Provision for Income Taxes Schedule Of Components Of Income Tax Expense Benefit Table [Text Block] Reconciliation Between Effective Tax Rate and Federal Income Tax Rate Schedule Of Effective Income Tax Rate Reconciliation Table [Text Block] Analysis of Deferred Tax Assets and Liabilities Schedule Of Deferred Tax Assets And Liabilities Table [Text Block] Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits Schedule Of Unrecognized Tax Benefits Roll Forward Table [Text Block] Summary of Lease Costs Recognized Under Topic 842 and Other Information Pertaining to Operating Leases Lease Cost Table [Text Block] Summary of Maturities of Lease Liabilities and Reconciliation of Lease Liabilities Recognized Under Topic 842 Lessee Operating Lease Liability Maturity Table [Text Block] Summary of Aggregate Future Minimum Non-Cancellable Commitments Under Leases Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block] Basic and Diluted Net Loss Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Summary of Aggregate Non-Cancelable Contractual Obligations Arising from Manufacturing Obligations Contractual Obligation Fiscal Year Maturity Schedule Table [Text Block] Financial Information by Quarter Schedule Of Quarterly Financial Information Table [Text Block] Cash, cash equivalents and investments Cash Cash Equivalents And Short Term Investments Restricted cash and investments Restricted Cash And Investments Noncurrent Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] Outside of U.S. [Member] Non Us [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Product Revenues [Member] Sales Revenue Product Line [Member] Accounts Receivable [Member] Accounts Receivable [Member] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer one. Customer One [Member] Customer One [Member] Customer two. Customer Two [Member] Customer Two [Member] Customer three. Customer Three [Member] Customer Three [Member] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Patents [Member] Patents [Member] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Employee Stock Purchase Plan [Member] Employee Stock [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Number of operating segments Number Of Operating Segments Accounts receivable payment term. Accounts receivable payment term Accounts Receivable Payment Term Concentration of credit risk percentage Concentration Risk Percentage1 Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment, Type Property Plant And Equipment By Type [Axis] Property, Plant and Equipment, Type Property Plant And Equipment Type [Domain] Lab Equipment [Member] Lab Equipment [Member] Lab Equipment [Member] Office Equipment [Member] Office Equipment [Member] Software And Computer Equipment [Member] Software and Computer Equipment [Member] Software And Computer Equipment [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Furniture and Fixtures [Member] Furniture And Fixtures [Member] Land [Member] Land [Member] Land Improvements [Member] Land Improvements [Member] Construction in Progress [Member] Construction In Progress [Member] Building and Improvements [Member] Building And Building Improvements [Member] Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Property and equipment, Estimated useful life Property Plant And Equipment Useful Life Property and equipment, Estimated useful life Property Plant And Equipment Estimated Useful Lives Initial term of patents Finite Lived Intangible Asset Useful Life Percentage of closing price at which employees can purchase common stock under the ESPP. Percentage of closing price of common stock Common Stock Closing Price Percentage Percentage of discount recognized on graded-vesting based on stock-based compensation expense over the purchase period Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date Right-of-use assets Operating lease liabilities Operating Lease Liability Proceeds From License And Collaborative Agreement. Upfront cash payment received. Stock issued during period value collaboration and license agreement. Regulatory and sales milestones payment received. Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Collaborative Arrangement Collaborative Arrangement [Member] Counterparty Name Counterparty Name [Axis] Counterparty Name Repurchase Agreement Counterparty Name [Domain] Roche. Roche Holding A.G. [Member] Roche [Member] Genethon. Genethon [Member] Genethon [Member] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Genethon Products. Genethon Products [Member] Genethon Products [Member] Other Licensed Products. Other Licensed Products [Member] Other Licensed Products [Member] StrideBio, Inc. . StrideBio, Inc. [Member] Stride Bio Inc [Member] Warrant agreement. Warrant Agreement Warrant Agreement [Member] Myonexus Therapeutics, Inc. Myonexus Therapeutics, Inc. [Member] Myonexus Therapeutics Inc [Member] Equity investment agreement. Equity Investment Agreement [Member] Equity Investment Agreement [Member] Lysogene S,A. Lysogene S.A. [Member] Lysogene S A [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other Noncurrent Assets [Member] Other Noncurrent Assets [Member] License development and option agreement. License Development And Option Agreement License Development And Option Agreement [Member] Pompe license agreement. Pompe License Agreement Pompe License Agreement [Member] Lacerta Therapeutics, Inc. Lacerta Therapeutics [Member] Lacerta Therapeutics Inc [Member] Series A preferred stock purchase agreement. Series A Preferred Stock Purchase Agreement Series A Preferred Stock Purchase Agreement [Member] Class of Stock Statement Class Of Stock [Axis] Class of Stock Class Of Stock [Domain] Series A Preferred Stock Series A Preferred Stock [Member] License and purchase agreement. License And Purchase Agreement License And Purchase Agreement [Member] Nationwide license agreement. Nationwide License Agreement [Member] Nationwide License Agreement [Member] Nationwide children's hospital. Nationwide Children’s Hospital [Member] Nationwide Childrens Hospital [Member] Bio Marin Pharmaceutical Incorporation. BioMarin Pharmaceutical, Inc. [Member] Bio Marin Pharmaceutical Incorporation [Member] US [Member] UNITED STATES EU [member] European Union [Member] Other Countries. Other Countries [Member] Other Countries [Member] Intellectual Property Intellectual Property [Member] University of Western Australia. University of Western Australia [Member] University Of Western Australia [Member] EXONDYS fifty one and five additional products. EXONDYS 51 E X O N D Y S Fifty One And Five Additional Products [Member] VYONDYS 53. VYONDYS 53 [Member] V Y O N D Y S Fifty Three [Member] Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Proceeds From License And Collaborative Agreement Proceeds From License And Collaborative Agreement Upfront Cash Payment Received Upfront Cash Payment Received Stock Issued During Period Value Collaboration and License Agreement Stock Issued During Period Value Collaboration And License Agreement Regulatory and Sales Milestones Payment Received Regulatory And Sales Milestones Payment Received Payment for option exercise. Option exercise payment Payment For Option Exercise Percentage in development costs. Percentage in development costs Percentage In Development Costs Research and development expense Research And Development Expense Development, regulatory and sales milestones payment. Upfront cash payment under agreements. Up-front cash payment under agreements Upfront Cash Payment Under Agreements Development, regulatory and sales milestones payment Development Regulatory And Sales Milestones Payment Development, regulatory and sales milestones payment per sarepta development targets. Development, regulatory and sales milestones payment per joint development targets. upfront expense. Up-front cash expense Upfront Expense Up-front cash payment under development Development Regulatory And Sales Milestones Payment Per Sarepta Development Targets Up-front cash payment under sales milestone Development Regulatory And Sales Milestones Payment Per Joint Development Targets Upfront payment. Up-front cash payment under agreements Upfront Payment Cash consideration under agreement excluding contingent payments. Milestone payment. Milestone payment classified as accured expense. Number of development milestone. Cash consideration under agreement excluding contingent payments Cash Consideration Under Agreement Excluding Contingent Payments Up-front cash payment under sales milestone Milestone Payment Milestone accrued payment Milestone Payment Classified As Accured Expense Number of development milestone Number Of Development Milestone Final exercise price under agreement. Additional development milestone payments to be paid. Final exercise price Final Exercise Price Under Agreement Additional transaction fees Business Acquisition Cost Of Acquired Entity Transaction Costs Additional development milestone payments to be paid Additional Development Milestone Payments To Be Paid Date of acquisition Business Acquisition Effective Date Of Acquisition1 Contingent consideration liability of acquisition Business Combination Contingent Consideration Liability Business acquisition total consideration. Consideration Business Combination Consideration Transferred [Abstract] Transactions costs and other fees Business Combination Acquisition Related Costs Total consideration Business Acquisition Total Consideration Assets Acquired (in thousands) Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets [Abstract] Cash and cash equivalents Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents Prepaids Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expense And Other Assets In-process research and development Total assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Liability Assumed Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities [Abstract] Contingent consideration Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Contingent Liability Total liability assumed Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities Cost of asset Deferred Costs And Other Assets Common stock purchased. Percentage of common stock outstanding. Development regulatory and sales milestone payments to be paid. Development, regulatory and sales milestones payments to be paid Development Regulatory And Sales Milestone Payments To Be Paid Common stock purchased,shares Common Stock Purchased Percentage of common stock outstanding Percentage Of Common Stock Outstanding Upfront license fee. Development milestone payment. Upfront License Fee Upfront License Fee Development milestone payment Development Milestone Payment Up-front payment Contract With Customer Liability Number of shares purchased under agreement. Up-front payment Number Of Shares Purchased Under Agreement Investment change in carrying value. Investment change in carrying value Investment Change In Carrying Value Upfront fee to be paid on execution of agreements. Payment related to regulatory and sales milestone payments. Royalty payment expiry period. Percentage of royalty payments. Up-front cash payment under agreements Upfront Fee To Be Paid On Execution Of Agreements Regulatory and sales milestone payments Payment Related To Regulatory And Sales Milestone Payments Royalty payment expiry period Royalty Payment Expiry Period Percentage of royalty payments Percentage Of Royalty Payments Intangible asset, net Settlement and license charges Regulatory milestone payable Regulatory milestone payable Regulatory Milestone Payable Sales milestone payment recorded as an in-license right Finite Lived License Agreements Gross Royalty expense Royalty Expense Upfront fee to be paid on certain achievement. Payments to UWA on successful achievement of certain development and regulatory milestones Upfront Fee To Be Paid On Certain Achievement Carrying value of intangible assets Intangible Assets Net Excluding Goodwill Development milestone and settlement upfront fee recognized as research and development expense. Obligations due to development, regulatory, commercial milestone and up-front royalty payments. Development, regulatory, commercial milestone and up-front royalty payments Obligations Due To Development Regulatory Commercial Milestone And Up Front Royalty Payments Development Milestone and Settlement Upfront Fee Recognized as Research and Development Expense Development Milestone And Settlement Upfront Fee Recognized As Research And Development Expense Gain from sale of intangible asset. Gain from sale of intangible asset. Gain From Sale Of Intangible Asset [Table] Gain From Sale Of Intangible Asset [Table] Related Party Transaction Related Party Transaction [Axis] Related Party Transaction Related Party Transaction [Domain] Gilead Sciences Incorporation. Gilead [Member] Gilead Sciences Incorporation [Member] Gain From Sale Of Intangible Asset [Line Items] Gain From Sale Of Intangible Asset [Line Items] Gain from sale of PRV asset Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Level 1 [Member] Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value Inputs Level1 [Member] Level 2 [Member] Fair Value Inputs Level2 [Member] Level 3 [Member] Fair Value Inputs Level3 [Member] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Money Market Funds [Member] Money Market Funds [Member] Government and Government Agency Bonds [Member] U S Government Agencies Debt Securities [Member] Strategic Equity Investments [Member] Strategic Equity Investments [Member] Certificates of Deposit [Member] Certificates Of Deposit [Member] Commercial Paper [Member] Commercial Paper [Member] Corporate Bonds [Member] Corporate Bond Securities [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] Total assets Assets Fair Value Disclosure Contingent consideration Total liabilities Liabilities Fair Value Disclosure Schedule Of Cash And Cash Equivalents [Table] Schedule Of Cash And Cash Equivalents [Table] Cash and Cash Equivalents [Line Items] Cash And Cash Equivalents [Line Items] Cash equivalents Cash Equivalents At Carrying Value Weighted average maturity period of available for sale securities. Weighted average maturity period of available-for-sale securities Weighted Average Maturity Period Of Available For Sale Securities Available for sale debt securities noncurrent amortized cost basis. Available for sale debt securities noncurrent accumulated gross unrealized gain before tax. Available for sale debt securities noncurrent accumulated gross unrealized loss before tax. Available for sale debt securities current amortized cost basis. Available for sale debt securities current accumulated gross unrealized gain before tax. Available for sale debt securities current accumulated gross unrealized loss before tax. Cash cash equivalents and investments amortized cost basis. Cash cash equivalents and investments gross unrealized gain before tax. Cash cash equivalents and investments gross unrealized loss before tax. Cash cash equivalents and investments. Cash and cash equivalents amortized cost basis. Cash and cash equivalents gross unrealized gain before tax. Cash and cash equivalents gross unrealized loss before tax. Cash deposits and money market funds. Cash and Money Market Funds [Member] Cash Deposits And Money Market Funds [Member] Cash and Cash Equivalents [Member] Cash And Cash Equivalents [Member] Short-term Investments [Member] Short Term Investments [Member] Long term investments. Long-term Investments [Member] Long Term Investments [Member] Available for sale debt securities, Amortized cost Available For Sale Debt Securities Amortized Cost Basis Available for sale debt securities, Gross unrealized gains Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax Available for sale debt securities, Gross unrealized losses Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax Available for sale debt securities, Fair market value Available For Sale Securities Debt Securities Cash and cash equivalents, Amortized cost Cash And Cash Equivalents Amortized Cost Basis Cash and cash equivalents, Gross unrealized gains Cash And Cash Equivalents Gross Unrealized Gain Before Tax Cash and cash equivalents, Gross unrealized losses Cash And Cash Equivalents Gross Unrealized Loss Before Tax Cash, cash equivalents and investments, Amortized cost Cash Cash Equivalents And Investments Amortized Cost Basis Cash, cash equivalents and investments, Gross unrealized gains Cash Cash Equivalents And Investments Gross Unrealized Gain Before Tax Cash, cash equivalents and investments, Gross unrealized losses Cash Cash Equivalents And Investments Gross Unrealized Loss Before Tax Cash, cash equivalents and investments, Fair market value Cash Cash Equivalents And Investments Available for sale debt securities current, Amortized cost Available For Sale Debt Securities Current Amortized Cost Basis Available for sale debt securities current, Gross unrealized gains Available For Sale Debt Securities Current Accumulated Gross Unrealized Gain Before Tax Available for sale debt securities current, Gross unrealized losses Available For Sale Debt Securities Current Accumulated Gross Unrealized Loss Before Tax Available for sale debt securities current, Fair market value Available For Sale Securities Debt Securities Current Available for sale debt securities noncurrent, Amortized cost Available For Sale Debt Securities Noncurrent Amortized Cost Basis Available for sale debt securities noncurrent, Gross unrealized gains Available For Sale Debt Securities Noncurrent Accumulated Gross Unrealized Gain Before Tax Available for sale debt securities noncurrent, Gross unrealized losses Available For Sale Debt Securities Noncurrent Accumulated Gross Unrealized Loss Before Tax Available for sale debt securities noncurrent, Fair market value Available For Sale Securities Debt Securities Noncurrent Product sales, net of discounts and allowances Billed Contract Receivables Government contract receivables Government Contract Receivable Total accounts receivable, net Provision for reserves for discounts and allowances. Payments credits reserves for discounts and allowances. Schedule Of Accounts Notes Loans And Financing Receivable [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Receivable Type Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Receivable Type [Domain] Chargebacks. Chargebacks [Member] Chargebacks [Member] Rebates. Rebates [Member] Rebates [Member] Prompt pay. Prompt Pay [Member] Prompt Pay [Member] Other accruals. Other Accruals [Member] Other Accruals [Member] Accounts Notes And Loans Receivable [Line Items] Accounts Notes And Loans Receivable [Line Items] Beginning balance Allowance For Doubtful Accounts Receivable Current Provision Provision For Reserves For Discounts And Allowances Payments/credits Payments Credits Reserves For Discounts And Allowances Ending balance Reserves for reduction to accounts receivable. Reserves for component of accrued expenses. Reduction to accounts receivable Reserves For Reduction To Accounts Receivable Component of accrued expenses Reserves For Component Of Accrued Expenses Total reserves Raw materials Inventory Raw Materials Net Of Reserves Work in progress Inventory Work In Process And Raw Materials Net Of Reserves Finished goods Inventory Finished Goods Net Of Reserves Total inventory Manufacturing-related deposits and prepaid expense current. Prepaid clinical and preclinical expenses current. Prepaid maintenance services, current. Leasehold improvement receivable current. Prepaid research expenses, current. Prepaid Expense And Other Assets Current [Abstract] Manufacturing-related deposits and prepaids Manufacturing Related Deposits And Prepaid Expense Current Prepaid clinical and pre-clinical expenses Prepaid Clinical And Preclinical Expenses Current Prepaid maintenance services Prepaid Maintenance Services Current Leasehold improvement receivable Leasehold Improvement Receivable Current Prepaid insurance Prepaid Insurance Prepaid income tax Prepaid Taxes Prepaid research expenses Prepaid Research Expenses Current Other Other Assets Miscellaneous Current Total other current assets Manufacturing related deposits and prepaid expense non current. Strategic investments noncurrent. Prepaid Expense And Other Assets Noncurrent [Abstract] Manufacturing-related deposits and prepaids Manufacturing Related Deposits And Prepaid Expense Non Current Strategic investments Strategic Investments Noncurrent Prepaid clinical expenses Prepaid Expense Noncurrent Alternative minimum tax credit Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax Other Other Assets Miscellaneous Noncurrent Total other non-current assets Property and equipment, gross Property Plant And Equipment Gross Less: accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net Depreciation expense Depreciation Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] In-Licensed Rights [Member] Licensing Agreements [Member] Software Licenses [Member] Software Development [Member] Finite Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Intangible assets, gross Finite Lived Intangible Assets Gross Less: accumulated amortization Finite Lived Intangible Assets Accumulated Amortization Intangible assets, net In-lincensed rights. EXONDYS fifty one. EXONDYS 51 [Member] E X O N D Y S Fifty One [Member] Bio Marin. Bio Marin [Member] Bio Marin [Member] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Research and Development [Member] Research And Development Expense [Member] In-lincensed Rights In Lincensed Rights Expenses incurred on capitalized patents to be abandoned. Book value of patent abandoned Expenses Incurred On Capitalized Patents To Be Abandoned Impairment loss on patent assets Impairment Of Intangible Assets Finitelived Finite-lived intangible assets, amortization expense, one through five years. 2020 Finite Lived Intangible Assets Amortization Expense Next Twelve Months 2021 Finite Lived Intangible Assets Amortization Expense Year Two 2022 Finite Lived Intangible Assets Amortization Expense Year Three 2023 Finite Lived Intangible Assets Amortization Expense Year Four 2024 Finite Lived Intangible Assets Amortization Expense Year Five Thereafter Finite Lived Intangible Assets Amortization Expense After Year Five Total Finite Lived Intangible Assets Amortization Expense One Through Five Years Accrued product revenue related reserve current. Accrued contract manufacturing expense current. Accrued milestone expense current. Accrued clinical and preclinical costs current. Accrued collaboration cost sharing. Product revenue related reserves Accrued Product Revenue Related Reserve Current Accrued employee compensation costs Employee Related Liabilities Current Accrued contract manufacturing costs Accrued Contract Manufacturing Expense Current Accrued milestone expense Accrued Milestone Expense Current Accrued clinical and pre-clinical costs Accrued Clinical And Preclinical Costs Current Accrued professional fees Accrued Professional Fees Current Accrued collaboration cost-sharing Accrued Collaboration Cost Sharing Accrued royalties Accrued Royalties Current Other Other Accrued Liabilities Current Total accrued expenses Debt Instrument [Table] Debt Instrument [Table] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Two thousand and twenty four senior convertible notes. 2024 Convertible Notes [Member] Two Thousand And Twenty Four Senior Convertible Notes [Member] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Beneficial Owner [Member] Beneficial Owner [Member] Fundamental change. Fundamental Change [Member] Fundamental Change [Member] Biopharma credit plc and biopharma credit investments V (Master) LP. Biopharma Credit PLC and Biopharma Credit Investments V (Master) LP [Member] Biopharma Credit P L C And Biopharma Credit Investments V Master L P [Member] Tranch A. Tranch A [Member] Tranch A [Member] Tranch B. Tranch B [Member] Tranch B [Member] December 2019 Term Loan [Member] MidCap Financial amended and restated credit and security agreement. MidCap Financial Amended and Restated Credit and Security Agreement [Member] Mid Cap Financial Amended And Restated Credit And Security Agreement [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Revolving Loan [Member] Revolving Credit Facility [Member] Convertible debt and term loan and revolver and mortgage loans. Convertible Debt, The Term Loan, The Revolver and The Mortgage Loans [Member] Convertible Debt And Term Loan And Revolver And Mortgage Loans [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt instrument, face amount Debt Instrument Face Amount Debt instrument, maturity date Debt Instrument Maturity Date Debt instrument, interest rate per annum Debt Instrument Interest Rate Stated Percentage Debt instrument, payment frequency Debt Instrument Frequency Of Periodic Payment Debt instrument, convertible into shares Debt Instrument Convertible Number Of Equity Instruments Debt instrument, conversion rate Debt Instrument Convertible Conversion Ratio1 Debt instrument, conversion price Debt Instrument Convertible Conversion Price1 Convertible debt issuance costs. Proceeds for issuance of notes allocated to equity Offering costs Convertible Debt Issuance Costs Debt issuance costs Deferred Finance Costs Gross Effective interest rate percentage Debt Instrument Interest Rate Effective Percentage Voting rights percentage. Debt instrument repurchase price percentage. Voting percentage Voting Rights Percentage Debt instrument, repurchase price percentage Debt Instrument Repurchase Price Percentage Capped calls strike price Derivative Price Risk Option Strike Price Capped calls cap price Derivative Cap Price Amount paid for capped calls transactions Number of tranches. Current borrowing capacity Line Of Credit Facility Current Borrowing Capacity Number of tranches Number Of Tranches Line of credit facility prepayment fee percentage. Prepayment fee percentage Line Of Credit Facility Prepayment Fee Percentage Line of credit facility, lenders fee Line Of Credit Facility Commitment Fee Percentage Debt discount Debt Instrument Unamortized Discount Debt issuance costs Deferred Finance Costs Net Proceeds after debt discount and issuance cost Proceeds From Debt Net Of Issuance Costs Debt extinguishment loss Credit agreement interest rate per annum Interest expense related to debt facilities Interest Expense Debt Two Thousand And Nineteen Term Loan Member 2019 Term Loan [Member] Two Thousand And Nineteen Term Loan [Member] Principal amount Unamortized discount Unamortized discount - debt issuance costs Net carrying value Long Term Debt Total carrying value of debt facilities Total fair value of debt facilities Debt Instrument Fair Value 2020 Long Term Debt Maturities Repayments Of Principal In Next Twelve Months 2021 Long Term Debt Maturities Repayments Of Principal In Year Two 2022 Long Term Debt Maturities Repayments Of Principal In Year Three 2023 Long Term Debt Maturities Repayments Of Principal In Year Four 2024 Long Term Debt Maturities Repayments Of Principal In Year Five Thereafter Long Term Debt Maturities Repayments Of Principal After Year Five Total payments Proceeds from issuance of common stock including printing fee. Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Underwritten public offering. Underwritten Public Offering [Member] Underwritten Public Offering [Member] Underwritten offering. Underwritten Offering [Member] Underwritten Offering [Member] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Class Of Stock [Line Items] Class Of Stock [Line Items] Common stock issued Stock Issued During Period Shares New Issues Common stock fair value Common stock average price per share Sale Of Stock Price Per Share Net proceeds from issue of common stock Proceeds From Issuance Of Common Stock Including Printing Fee Underwriting discounts, commission and offering expenses Payments Of Stock Issuance Costs Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Two thousand eleven equity incentive plan. 2011 Equity Incentive Plan [Member] Two Thousand Eleven Equity Incentive Plan [Member] Two thousand and thirteen employee stock purchase plan. 2013 Employee Stock Purchase Plan [Member] Two Thousand And Thirteen Employee Stock Purchase Plan [Member] Two thousand fourteen employment commencement incentive plan. 2014 Employment Commencement Incentive Plan (2014 Plan) [Member] Two Thousand Fourteen Employment Commencement Incentive Plan [Member] Two thousand eighteen equity incentive plan. 2018 Equity Incentive Plan [Member] Two Thousand Eighteen Equity Incentive Plan [Member] Stock Options with Performance-based Conditions [Member] Performance Shares [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Executives [Member] Executive Officer [Member] Restricted Stock Units [Member] Former chief executive officer. Former Chief Executive Officer [Member] Former Chief Executive Officer [Member] Nature of Expense Nature Of Expense [Axis] Interim Period, Costs Not Allocable Interim Period Costs Not Allocable [Domain] Options with Service Conditions. Options with Service conditions [Member] Options With Service Conditions [Member] Awards with service and market conditions member Awards with Service and Market Conditions [Member] Awards With Service And Market Conditions [Member] Awards with performance conditions member. Awards with Performance Conditions [Member] Awards With Performance Conditions [Member] Stock awards or stock units with service conditions Member. Stock Awards or Stock Units with Service Conditions [Member] Stock Awards Or Stock Units With Service Conditions [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Common stock remain available for future grant Common Stock Capital Shares Reserved For Future Issuance Number of shares approved under the plan Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Number of additional shares approved under the plan Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized Term of award Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Share based compensation granted under plan vest period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Risk-free interest rate, minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum Risk-free interest rate, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum Expected dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Expected term Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Expected volatility, minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum Expected volatility, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum Stock Option Shares Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward Grants outstanding at beginning of the period Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Exercised Expired and forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Grants outstanding at end of the period Grants exercisable at end of the period Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Grants vested and expected to vest at end of the period Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward Grants outstanding at beginning of the period Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Expired and forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Grants outstanding at end of the period Grants exercisable at end of the period Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Grants vested and expected to vest at end of the period Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Cliff vesting period. CEO [Member] Chief Executive Officer [Member] Stock options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Cliff vesting schedule Cliff Vesting Period Fair value of options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Weighted-average grant date fair value per share of stock-based awards, granted to employees Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Outstanding at end of year Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Exercisable at end of year Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Term [Abstract] Weighted Average Remaining Contractual Life (Years) Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Term [Abstract] Outstanding at end of year Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Exercisable at end of year Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Vested and expected to vest Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Aggregate grant date fair value of stock options vested. Aggregate grant date fair value of stock options vested Aggregate Grant Date Fair Value Of Stock Options Vested Aggregate intrinsic value of stock options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Stock-based compensation expense Allocated Share Based Compensation Expense Shares, Grants outstanding at beginning of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Shares, Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Shares, Vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Shares, Cancelled Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Shares, Grants outstanding at end of the period Weighted Average Grant Date Fair Value per Share, Grants outstanding at beginning of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value per Share, Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value per Share, Vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value per Share, Cancelled Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value per Share, Grants outstanding at end of the period Grants, Restricted stock units and awards Share-based compensation award, expiration date Share Based Compensation Arrangement By Share Based Payment Award Expiration Date Grant date fair value, restricted stock units and awards Restricted stock units and awards with performance conditions remaining to be vested Share based compensation arrangement by share based payment award equity Instruments other than options exercised. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested and Expected to Vest, Outstanding, Number Stock Appreciation Rights [Member] Stock Appreciation Rights S A R S [Member] Shares, Exercised Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised Shares, Grants exercisable at end of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercisable Shares, Grants vested and expected to vest at end of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Expected To Vest Outstanding Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other than Options, Outstanding, Weighted Average Exercise Price Share based compensation arrangement by share based payment award equity Instrument other than options outstanding weighted average exercised price share based compensation arrangement by share based payment award equity instrument other than options outstanding weighted average exercised price. Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Exercisable In Period Weighted Average Exercise Price Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Vested and Expected to Vest, Weighted Average Exercise Price Weighted Average Exercise Price per Share, Grants outstanding at beginning of the period Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instrument Other Than Options Outstanding Weighted Average Exercise Price Weighted Average Exercise Price per Share, Exercised Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Outstanding Weighted Average Exercised Price Weighted Average Exercise Price per Share, Grants outstanding at end of the period Weighted Average Exercise Price per Share, Grants exercisable at end of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Exercisable In Period Weighted Average Exercise Price Weighted Average Exercise Price per Share, Grants vested and expected to vest at end of the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Expected To Vest Weighted Average Exercise Price 2013 Employee Stock Purchase Plan [Member] Number of shares purchased Proceeds received (in millions) Sale Of Stock Consideration Received On Transaction Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Research and Development [Member] Selling, General and Administrative [Member] Selling General And Administrative Expenses [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total stock-based compensation Restricted stock and restricted stock units. Restricted Stock Awards/Units (RSAs/RSUs) [Member] Restricted Stock And Restricted Stock Units R S Us [Member] Employee stock purchase plan. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Unrecognized stock based compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Weighted average period expected to recognize unrecognized stock base compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Defined contribution plan minimum age limit for eligibility to participate in plan. Expense related to 401 (K) Plan Defined Contribution Plan Cost Recognized Defined contribution plan, employers matching contribution, service period Deferred Compensation Arrangement With Individual Requisite Service Period1 Defined contribution plan, employers matching contribution, vesting percentage after one years of service Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage Description of 401(k) plan Description Of Defined Contribution Pension And Other Postretirement Plans Age limit for eligibility to participate in the defined contribution plan Defined Contribution Plan Minimum Age Limit For Eligibility To Participate In Plan Interest expense Interest Expense Interest income Investment Income Interest Amortization of investment discount Amortization Of Discounts Premiums Investments Cash Equivalent And Short Term Investment Other expense Other Nonoperating Income Expense Domestic Income Loss From Continuing Operations Before Income Taxes Domestic Foreign Income Loss From Continuing Operations Before Income Taxes Foreign Current provision: Current Income Tax Expense Benefit Continuing Operations [Abstract] Federal Current Federal Tax Expense Benefit State Current State And Local Tax Expense Benefit Foreign Current Foreign Tax Expense Benefit Total current provision Current Income Tax Expense Benefit Deferred benefit: Deferred Income Tax Expense Benefit Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense Benefit State Deferred State And Local Income Tax Expense Benefit Foreign Deferred Foreign Income Tax Expense Benefit Total deferred benefit Deferred Income Tax Expense Benefit Total current provision Effective income tax rate reconciliation research and development and other tax credit. Effective income tax rate reconciliation, permanent differences. Effective income tax rate reconciliation return to provision. Effective income tax rate reconciliation impact of tax reform, net of valuation allowance. Effective income tax rate reconciliation basis difference in subsidiary. Federal income tax rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate State taxes Effective Income Tax Rate Reconciliation State And Local Income Taxes Research and development and other tax credits Effective Income Tax Rate Reconciliation Research And Development And Other Tax Credit Valuation allowance Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance Permanent differences Effective Income Tax Rate Reconciliation Permanent Differences Sarepta International C.V. return to provision Effective Income Tax Rate Reconciliation Return To Provision Impact of tax reform, net of valuation allowance Effective Income Tax Rate Reconciliation Impact Of Tax Reform Net Of Valuation Allowance Basis difference in subsidiary Effective Income Tax Rate Reconciliation Basis Difference In Subsidiary Foreign rate differential Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential Other Effective Income Tax Rate Reconciliation Other Adjustments Effective tax rate Effective Income Tax Rate Continuing Operations Accumulated costs. Upfront fee milestone payment. Cost related to exercise of option. Income taxes. Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Tax Credit Carryforward Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name Tax Credit Carryforward Name [Domain] Research and Development Credits [Member] Research [Member] Income Tax Authority Income Tax Authority [Axis] Income Tax Authority Income Tax Authority [Domain] Federal [Member] Domestic Country [Member] State [Member] State And Local Jurisdiction [Member] Foreign [Member] Foreign Country [Member] Consolidated Entities Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] Sarepta International Holdings GmbH. Sarepta International Holdings GmbH [Member] Sarepta International Holdings Gmb H [Member] Income Taxes [Line Items] Income Taxes [Line Items] Accumulated costs related to acquisition Accumulated Costs Related To Acquisition Up-front and milestone payments Upfront Fee Milestone Payment Exercise option Cost Related To Exercise Of Option Deferred tax assets, depreciation and amortization. Deferred tax assets lease liabilities. Deferred tax assets deferred revenue. Deferred tax liabilities right of use asset. Deferred tax liabilities, debt discount. Deferred tax assets: Deferred Tax Assets Gross [Abstract] Net operating loss carryforwards Deferred Tax Assets Operating Loss Carryforwards Difference in depreciation and amortization Deferred Tax Assets Depreciation And Amortization Research and development tax credits Deferred Tax Assets In Process Research And Development Stock-based compensation Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Lease liabilities Deferred Tax Assets Lease Liabilities Deferred revenue Deferred Tax Assets Deferred Revenue Capitalized inventory Deferred Tax Assets Inventory Other Deferred Tax Assets Other Total deferred tax assets Deferred Tax Assets Gross Deferred tax liabilities: Deferred Tax Liabilities [Abstract] Right of use asset Deferred Tax Liabilities Right Of Use Asset Debt discount Deferred Tax Liabilities Debt Discount Total deferred tax liabilities Deferred Income Tax Liabilities Valuation allowance Deferred Tax Assets Valuation Allowance Net deferred tax assets Deferred Tax Assets Liabilities Net Net change in valuation allowance for deferred tax assets Valuation Allowance Deferred Tax Asset Change In Amount Operating loss carryforwards, valuation allowance Operating Loss Carryforwards Valuation Allowance Operating loss carryforwards, expiration year. Tax Credit Carryforward, Expiration Year Net operating loss carryforwards Operating Loss Carryforwards Net operating loss carryforwards subject to expiration Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration Operating loss carryforwards, ending of expiration year Operating Loss Carryforwards Expiration Year Net operating loss carried forwards Research and development credits carryforward, Description Tax Credit Carryforward Description Research and development credits carryforward, Amount Tax Credit Carryforward Amount Research and development credits carryforward, Expiration period Tax Credit Carryforward Expiration Year Balance at beginning of the period Unrecognized Tax Benefits Increase related to current year tax positions Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions Increase related to prior year tax positions Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions Decrease related to prior year tax positions Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions Balance at end of the period Accrual for interest or penalties Income Tax Examination Penalties And Interest Accrued Recognized interest and/or penalties Income Tax Examination Penalties And Interest Expense Lessee Lease Description [Table] Lessee Lease Description [Table] Adjustments for New Accounting Pronouncements Adjustments For New Accounting Pronouncements [Axis] Type of Adoption Type Of Adoption [Member] ASU No. 2016-02 [Member] Accounting Standards Update201602 [Member] Restatement Restatement [Axis] Restatement Restatement [Domain] Restatement Adjustment [Member] Restatement Adjustment [Member] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] De-recognition of deferred rent to reduce right-of-use assets Deferred Rent Credit Noncurrent Operating lease other information. Lease cost Lease Cost [Abstract] Operating lease cost Operating Lease Cost Variable lease cost Variable Lease Cost Total lease cost Lease Cost Other information Operating Lease Other Information [Abstract] Operating lease payments Operating Lease Payments Operating lease liabilities arising from obtaining ROU assets Right Of Use Asset Obtained In Exchange For Operating Lease Liability Weighted average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Weighted average discount rate Operating Lease Weighted Average Discount Rate Percent Included in the condensed consolidated balance sheet. Maturity of lease liability Operating Lease Liabilities Payments Due [Abstract] 2020 Lessee Operating Lease Liability Payments Due Next Twelve Months 2021 Lessee Operating Lease Liability Payments Due Year Two 2022 Lessee Operating Lease Liability Payments Due Year Three 2023 Lessee Operating Lease Liability Payments Due Year Four 2024 Lessee Operating Lease Liability Payments Due Year Five Thereafter Lessee Operating Lease Liability Payments Due After Year Five Total minimum lease payments Lessee Operating Lease Liability Payments Due Less: imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Total operating lease liabilities Included in the condensed consolidated balance sheet: Included In Condensed Consolidated Balance Sheet [Abstract] Current portion of lease liabilities within other current liabilities Operating Lease Liability Current Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease Liability Current Statement Of Financial Position Extensible List Total operating lease liabilities Maturity of lease liability Operating Leases Future Minimum Payments Due [Abstract] 2020 Operating Leases Future Minimum Payments Due Current 2021 Operating Leases Future Minimum Payments Due In Two Years 2022 Operating Leases Future Minimum Payments Due In Three Years 2023 Operating Leases Future Minimum Payments Due In Four Years 2024 Operating Leases Future Minimum Payments Due In Five Years Thereafter Operating Leases Future Minimum Payments Due Thereafter Total minimum lease payments Operating Leases Future Minimum Payments Due Weighted-average common shares outstanding - basic Weighted Average Number Of Shares Outstanding Basic Effect of dilutive securities* Incremental Common Shares Attributable To Call Options And Warrants Weighted-average common shares outstanding - diluted Weighted Average Number Of Diluted Shares Outstanding Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Anti-dilutive securities excluded from computation of net loss per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Effect on diluted net earnings (loss) per share Earnings Per Share Diluted Number of non-refundable process equipment fee payments. Quarterly capacity access fee payments. Advance upfront fee to be paid on execution of agreements. Required non refundable payments at each time of procurement of equipment Commitments and contingencies. Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Manufacturing agreement. Manufacturing Agreement [Member] Manufacturing Agreement [Member] Brammer Bio MA, LLC. Brammer [Member] Brammer Bio M A Limited Liability Company [Member] Supply agreement. Manufacturing Agreement [Member] Supply Agreement [Member] Manufacturing collaboration agreement. Manufacturing Collaboration Agreement [Member] Manufacturing Collaboration Agreement [Member] Paragon Bioservices, Inc. Paragon [Member] Paragon Bioservices Inc [Member] Manufacturing supply agreement. Manufacturing Collaboration Agreement [Member] Manufacturing Supply Agreement [Member] Clinical and commercial supply agreement. Clinical and Commercial Supply Agreement [Member] Clinical And Commercial Supply Agreement [Member] Aldevron LLC. Aldevron LLC [Member] Aldevron L L C [Member] Other Current Assets [Member] Other Current Assets [Member] Research and Development Arrangement, Contract to Perform for Others, Type Research And Development Arrangement Contract To Perform For Others By Type [Axis] Research and Development Arrangement, Contract to Perform for Others, Type Research And Development Arrangement Contract To Perform For Others Type [Domain] Other Funding Commitments [Member] Additional Funding Agreement Terms [Member] Contract research organizations. CRO [Member] Contract Research Organizations [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Advance upfront fee to be paid on execution of agreements Advance Upfront Fee To Be Paid On Execution Of Agreements Number of non-refundable process equipment fee payments Number Of Non Refundable Process Equipment Fee Payments Required non refundable payments at each time of procurement of equipment Required Non Refundable Payments At Each Time Of Procurement Of Equipment Quarterly capacity access fee payments Quarterly Capacity Access Fee Payments Agreement term. Automatic renewal term. Minimum number of months prior to expiration of term for renewal. Maximum required additional quarters for remittance of capacity access fees before terminate agreement Supply agreement term Agreement Term Successive renewal term of supply agreement Automatic Renewal Term Minimum number of months prior to expiration of term for renewal Minimum Number Of Months Prior To Expiration Of Term For Renewal Maximum required additional quarters for remittance of capacity access fees before terminate agreement Maximum Required Additional Quarters For Remittance Of Capacity Access Fees Before Terminate Agreement Cash payment under agreements. Cash payment under agreements Cash Payment Under Agreements Number of dedicated clean room suite. Number of additional clean room suites available on optional reserve. Agreement expiration date. Number of dedicated clean room suites Number Of Dedicated Clean Room Suite Number of additional clean room suites available on optional reserve Number Of Additional Clean Room Suites Available On Optional Reserve Agreement expiration date Agreement Expiration Date Pre-launch period purchase obligation, minimum amount per quarter per clean room Purchase Obligation Usage fees per annum per clean room suite. clean room suite reservation fees. Percentage of credit on clean room use fee if threshold met. Usage fees per annum per clean room suite Usage Fees Per Annum Per Clean Room Suite Clean room suite reservation fees Clean Room Suite Reservation Fees Percentage of credit on clean room use fee if threshold met Percentage Of Credit On Clean Room Use Fee If Threshold Met Clean room suite reservation fees payments. Clean room suite reservation fees payments Clean Room Suite Reservation Fees Payments Agreement extension term. Agreement expiration description Agreement Extension Term Percentage of prepayments credited back equal to batch invoice amount. Prepayments. Percentage of prepayments credited back equal to batch invoice amount Percentage Of Prepayments Credited Back Equal To Batch Invoice Amount Prepayments to extend agreement term Prepayments 2020 Contractual Obligation Due In Next Twelve Months 2021 Contractual Obligation Due In Second Year 2022 Contractual Obligation Due In Third Year 2023 Contractual Obligation Due In Fourth Year 2024 Contractual Obligation Due In Fifth Year Thereafter Contractual Obligation Due After Fifth Year Total manufacturing commitments Contractual Obligation Cancellable future commitments. Cancellable future commitments Cancellable Future Commitments Expenditures incurred by CROs Research And Development Arrangement Contract To Perform For Others Costs Incurred Gross Fina Sale Price Under Agreement. Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] FDA Member. F D A F D A [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Agreement to sell Final Sale Price Under Agreement Total revenues Other expense, net Other Operating Income Expense Net Interest expense and other, net Interest Expense Income And Other Net