Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Remaining amortization period Intangible Asset, Finite-Lived, Remaining Amortization Period Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Industrial Bank Working Capital Loans Industrial Bank Working Capital Loans [Member] Industrial Bank Working Capital Loans Statistical Measurement [Domain] Statistical Measurement [Domain] Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Segment Reporting [Abstract] Accrued rebate to distributors Accrued Rebate To Distributors Current Amount of accrued rebate payable to distributors. Ordinary shares (par value of $0.000006 per share; 5,000,000,000 shares authorized; 1,132,222,310 and 1,113,822,550 shares issued as of June 30, 2026 and December 31, 2025, respectively; 1,122,445,390 and 1,106,389,340 shares outstanding as of June 30, 2026 and December 31, 2025, respectively) Common Stock, Value, Issued Employee taxes paid related to net share settlement of equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Accrued payroll Employee-related Liabilities, Current Maximum guarantor obligation Guarantor Obligations, Maximum Exposure, Undiscounted Restatement Determination Date Restatement Determination Date Inventory write-down Inventory Write-down AUGTYRO AUGTYRO [Member] AUGTYRO Issuance of ordinary shares upon vesting of restricted shares (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted net assets [Abstract] Restricted net assets Amendment Flag Amendment Flag Proceeds from the sale of equity investment Proceeds from Sale of Equity Method Investments Current liabilities Liabilities, Current [Abstract] Allowance for credit losses Accounts Receivable, Credit Loss Expense (Reversal) Other Other Sundry Liabilities, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Standby Letters of Credit Standby Letters of Credit [Member] Payables for purchase of property and equipment Payables For Purchase Of Property And Equipment Current Payables for purchase of property and equipment current. Electronic equipment Electronic Equipment [Member] Electronic equipment. Cost of collaboration revenue Other Cost of Operating Revenue Loss Contingencies [Table] Loss Contingencies [Table] Statutory reserves Statutory Reserves Statutory reserves. Other comprehensive loss, net of tax of nil: Other Comprehensive Income (Loss), Net of Tax [Abstract] Deferred tax assets Increase (Decrease) in Deferred Income Taxes Related Party Transactions Related Party Transactions Disclosure [Text Block] Zai Lab Suzhou Zai Lab Suzhou Company Limited [Member] Zai Lab (Suzhou) company limited. Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Property Plant And Equipment Property, Plant, and Equipment [Abstract] Options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Foreign currency translation adjustments Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Ordinary shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cash and cash equivalents Cash and Cash Equivalents [Abstract] Intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Weighted-average shares used in calculating net loss per ordinary share - basic (in shares) Weighted-average number of ordinary shares - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Tranche one Share-Based Payment Arrangement, Tranche One [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Number of reportable segments Number of Reportable Segments Noncash lease expenses Non Cash Lease Expenses Non-cash lease expenses. Total current liabilities Liabilities, Current Work in progress Inventory, Work in Process, Net of Reserves Deferred income Increase (Decrease) in Deferred Revenue Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Entity Address, City or Town Entity Address, City or Town Awards granted other than options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Consolidated balance sheets Statement of Financial Position [Abstract] Milestone fee Collaborative Arrangement, Rights And Obligations, Milestone Payment Collaborative Arrangement, Rights And Obligations, Milestone Payment Document Information [Line Items] Document Information [Line Items] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Tranche five Share-Based Payment Arrangement, Tranche Five [Member] Share-Based Payment Arrangement, Tranche Five Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Net Carrying Value Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Restricted Net Assets [Line Items] Restricted Net Assets [Line Items] Restricted net assets. Manufacturing equipment Manufacturing Equipment [Member] Manufacturing equipment. Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Commercial products Commercial Products, Intangible Asset [Member] Commercial Products, Intangible Asset Bank of Communications Working Capital Loans Bank of Communications Working Capital Loans [Member] Bank of Communications Working Capital Loans Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Disaggregated Expenses Segment Reporting [Table Text Block] Losses on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Use of Estimates Use of Estimates, Policy [Policy Text Block] Debt issuance costs Amortization of Debt Issuance Costs Schedule of Product Revenue Schedule Of Gross And Net Revenue [Table Text Block] Schedule Of Gross And Net Revenue Related Party [Axis] Related and Nonrelated Parties [Axis] Zai Lab Shanghai Zai Lab (Shanghai) Co., Ltd. [Member] Zai Lab (Shanghai) Co., Ltd. Property and Equipment, Net Property, Plant, and Equipment [Text Block] Supplemental disclosure on non-cash investing and financing activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date 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] Net cash (used in) provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Debt instrument term Debt Instrument, Term Treasury Stock (at cost, 9,776,920 and 7,433,210 shares as of June 30, 2026 and December 31, 2025, respectively) Treasury Stock, Common, Value Pre-Clinical programs Research And Development Expense, Pre-Clinical Programs Research And Development Expense, Pre-Clinical Programs Other comprehensive loss, tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Current operating lease liabilities Operating Lease, Liability, Current Cash and Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Schedule of Property and Equipment, Net Property, Plant, and Equipment [Table Text Block] Consolidated statements of comprehensive loss Statement of Comprehensive Income [Abstract] Loss Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Award Date [Axis] Award Date [Axis] SPD Bank Shanghai Pudong Development Bank Co., Ltd. [Member] Shanghai Pudong Development Bank Co., Ltd. Product revenue - gross Revenue From Contract With Customers, Excluding Assessed Tax, Before Adjustments For Rebates And Sales Returns Amount of revenue from contract with customers excluding assessed tax, before adjustments for rebates and sales return. Restricted Net Assets [Table] Restricted Net Assets [Table] Restricted net assets . Industrial Bank Working Capital Loan Facility Industrial Bank Working Capital Loan Facility [Member] Industrial Bank Working Capital Loan Facility Credit Facility [Domain] Credit Facility [Domain] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted-average shares used in calculating net loss per ordinary share - diluted (in shares) Weighted-average number of ordinary shares - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] OPTUNE Optune [Member] Optune Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Vesting percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Award Date [Domain] Award Date [Domain] CROs/CMOs/Investigators expenses CROs/CMOs Investigators Expenses CROs/CMOs Investigators Expenses Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Short-term debt Total short-term debt Short-Term Debt Other non-current assets Increase (Decrease) in Other Noncurrent Assets Taiwan dollar (“TW$”) Taiwan, New Dollars Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Licensing fees Research And Development Expense, Licensing Fees Research And Development Expense, Licensing Fees Award Timing Predetermined Award Timing Predetermined [Flag] Restricted cash, current Restricted Cash, Current Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] SPD Bank Working Capital Loans SPD Bank Working Capital Loan Facility [Member] SPD Bank Working Capital Loan Facility All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Depreciation expense Depreciation Vesting [Domain] Vesting [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Selling and marketing expenses Selling and Marketing Expense Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Schedule of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Segment Information Segment Reporting [Text Block] Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Schedule of Disaggregation of Net Revenue Disaggregation of Revenue [Table Text Block] Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Credit facility, availability period Line of Credit Facility, Expiration Period Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Building Building [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Ordinary shares, shares authorized (in shares) Common Stock, Shares Authorized Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] Amortization period Intangible Asset, Finite-Lived, Useful Life DLL3-Targeting ADC DLL3-Targeting ADC [Member] DLL3-Targeting ADC Exercise Price Award Exercise Price Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Issuance of ordinary shares upon vesting of restricted shares Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Notes receivable Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss, Current Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Cash, cash equivalents and restricted cash - beginning of period Cash, cash equivalents and restricted cash - end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Ningbo Bank Discounted Bills Ningbo Bank Discounted Bills [Member] Ningbo Bank Discounted Bills Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Borrowings Debt Disclosure [Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Denominator: Weighted Average Number Of Share Outstanding Basic And Diluted [Abstract] Weighted average number of share outstanding basic and diluted. Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] Total shareholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Liabilities Disclosure [Abstract] Summary of significant accounting policies Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Payments of public offering costs Payments of Stock Issuance Costs Insider Trading Policies and Procedures [Line Items] Commercial Manufacturing Development and Capital Expenditures Commercial Manufacturing Development And Capital Expenditures [Member] Commercial Manufacturing Development And Capital Expenditures Accounts receivable, allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Prepayments and other current assets Prepaid Expense and Other Assets, Current Selling, general, and administrative Total selling, general, and administrative expenses Selling, General and Administrative Expense Guarantor obligation term Guarantor Obligation, Term Guarantor Obligation, Term KarXT KarXT [Member] KarXT Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Payables for acquisition of intangible assets Non Cash, Payables For Intangible Assets Non-cash payables for intangible assets. Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segments Number of Operating Segments Antidilutive shares excluded from calculation of diluted loss per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Anti-Dilutive Shares Excluded from Calculation of Diluted Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Entity Central Index Key Entity Central Index Key Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Renminbi (“RMB”) China, Yuan Renminbi Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Operating lease liabilities Increase Decrease In Operating Lease Liabilities Increase (decrease) in operating lease liabilities. Other Current Liabilities Other Current Liabilities Disclosure [Text Block] Other current liabilities disclosure. Consolidated statements of operations Income Statement [Abstract] Shareholders’ equity Equity, Attributable to Parent [Abstract] Software Software, Purchased [Member] Document Transition Report Document Transition Report Deferred tax assets Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Components of Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] NUZYRA Nuzyra [Member] Nuzyra. US$ United States of America, Dollars Maximum additional milestone payments Collaborative Arrangement, Rights and Obligations, Maximum Additional Milestone Payments The amount represents the additional milestone payments. City Area Code City Area Code Restricted shares Restricted Stock [Member] Accumulated other comprehensive income AOCI Attributable to Parent [Member] Restricted amount by subsidiaries Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] Management Management [Member] Name Forgone Recovery, Individual Name Finished goods Inventory, Finished Goods, Net of Reserves Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] CMB China Merchants Bank Co., Ltd. [Member] China Merchants Bank Co., Ltd. Intangible Assets, Net Intangible Asset [Text Block] Statement [Line Items] Statement [Line Items] XACDURO XACDURO [Member] XACDURO Total assets Assets Entity [Domain] Entity [Domain] License and Collaboration Agreements Licenses And Collaborative Arrangement Disclosure [Text Block] Licenses And Collaborative Arrangement Disclosure Interest expenses Interest Expense, Nonoperating Schedule of Share-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Share-Based Compensation Share-Based Payment Arrangement [Text Block] PEO PEO [Member] Pfizer Pfizer [Member] Pfizer Notes receivable Increase (Decrease) in Notes Receivable, Current Personnel compensation and related costs Research And Development Expense, Personnel Compensation And Related Costs Research And Development Expense, Personnel Compensation And Related Costs Share-based compensation expense Share-Based Payment Arrangement, Expense Other non-current liabilities Other Liabilities, Noncurrent Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Exercise of share options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Cash equivalents Cash Equivalents, at Carrying Value Loss from fair value changes of equity investment with readily determinable fair value Equity Securities, FV-NI, Gain (Loss) Tax payables Taxes Payable, Current Accumulated deficit Retained Earnings [Member] Non-current operating lease liabilities Operating Lease, Liability, Noncurrent Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Ordinary shares, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Payments of debt issuance costs Payments of Debt Issuance Costs Loss per share - diluted (in dollars per share) Net loss per share - diluted (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Receipt of shares netted to satisfy tax withholding obligations related to share-based compensation Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Prepayments and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Amortization expense Intangible Asset, Finite-Lived, Amortization Expense Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Research and development Research and development expense Total research and development expenses Research and Development Expense Adjustments to reconcile net loss to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Product revenue, net Product revenue - net Product revenue - net Revenue from Contract with Customer, Excluding Assessed Tax Property and equipment, net Property and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Inventories, Net Inventory Disclosure [Text Block] Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Exercise of share options Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Floating interest rate adjustment period Debt Instrument, Variable Interest Rate, Adjustment, Period Debt Instrument, Variable Interest Rate, Adjustment, Period Tranche four Share-Based Payment Arrangement, Tranche Four [Member] Share-Based Payment Arrangement, Tranche Four Issuance cost of the follow-on public offering Stock Issued During Period, Value, New Issues Non-vested restricted shares Non Vested Restricted Shares [Member] Non-vested restricted shares. Tisotumab Vedotin Tisotumab Vedotin [Member] Tisotumab Vedotin Cash Cash Prior to April 2023 Prior To April 2023 [Member] Prior To April 2023 Other current liabilities Increase (Decrease) in Other Current Liabilities Construction in progress Construction in Progress [Member] Inventories Increase (Decrease) in Inventories VYVGART / VYVGART Hytrulo Vyvgart/Vyvgart Hytrulo [Member] Vyvgart/Vyvgart Hytrulo Segment Reporting [Table] Segment Reporting [Table] Revenues Revenues [Text Block] Revenues Related Party Transaction [Table] Related Party Transaction [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Office equipment Office Equipment [Member] Loss from operations Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Inventory write-down Production Related Impairments or Charges Vehicle Vehicles [Member] Australian dollar (“A$”) Australia, Dollars Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ordinary shares, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Treasury stock (in shares) Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares Equity Components Equity Components [Axis] Accounts receivable Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Currency [Axis] Currency [Axis] Cash paid for income tax Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] American Depositary Shares ADR [Member] Entity Interactive Data Current Entity Interactive Data Current Payables for purchase of property and equipment Noncash or Part Noncash Acquisition, Fixed Assets Acquired Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Since April 2023 April 2023 And Later [Member] April 2023 And Later Entity Small Business Entity Small Business Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Receipt of shares netted to satisfy tax withholding obligations related to share-based compensation (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Total Other Liabilities, Current CIB Industrial Bank Co., Ltd. [Member] Industrial Bank Co., Ltd. Contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Other non-current assets Other Assets, Noncurrent Document Type Document Type Fair Value as of Grant Date Award Grant Date Fair Value Basis of Presentation and Consolidation and Significant Accounting Policies Significant Accounting Policies [Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Loss Contingencies [Table] Unrecorded Unconditional Purchase Obligation [Line Items] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Loss before income tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 16) Commitments and Contingencies Gross Carrying Amount Intangible Asset, Finite-Lived, before Accumulated Amortization Total revenues Revenues Cash-based award, related liability Deferred Compensation Cash-Based Arrangements, Liability, Classified, Noncurrent Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Property and equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Mainland China CHINA Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Counterparty Name [Axis] Counterparty Name [Axis] Liabilities and shareholders’ equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Inventories, net Inventories, net Inventory, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Other costs Other Selling, General and Administrative Expense Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Collaboration revenue Revenue from Collaborative Arrangement, Excluding Revenue from Contract with Customer PEO Name PEO Name Geographical [Axis] Geographical [Axis] Leasehold improvements Leasehold Improvements [Member] Land use rights, net Land Use Rights Net Noncurrent Land use rights, net noncurrent. Short-Term Debt [Table] Short-Term Debt [Table] Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Less: Rebates and sales returns Revenue From Contract With Customers, Excluding Assessed Tax, Adjustments For Rebates And Sales Returns Revenue From Contract With Customers, Excluding Assessed Tax, Adjustments For Rebates And Sales Returns Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] MediLink Therapeutics MediLink Therapeutics [Member] MediLink Therapeutics Accrued professional service fees Accrued Professional Fees, Current Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Proceeds from maturity of short-term investment Proceeds from Maturities, Prepayments and Calls of Short-Term Investments Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] ZEJULA Zejula [Member] Zejula Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Upfront and milestone payment Collaborative Arrangement, Rights And Obligations, Upfront And Milestone Payment Collaborative Arrangement, Rights And Obligations, Upfront And Milestone Payment Organization and Principal Activities Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Share-based compensation Share-Based Payment Arrangement, Noncash Expense Personnel compensation and related costs Labor and Related Expense QINLOCK Qinlock [Member] Qinlock Schedule of Inventories, Net Schedule of Inventory, Current [Table Text Block] Loss per share - basic (in dollars per share) Net loss per share - basic (in dollars per share) Earnings Per Share, Basic Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Amortization of deferred income Amortization Of Deferred Income Amortization of deferred income. Award Type [Axis] Award Type [Axis] Unallocated research and development expenses Research and Development Expense, Unallocated Expense Research and Development Expense, Unallocated Expense Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable (net of allowance for credit losses of $20 and $31 as of June 30, 2026 and December 31, 2025, respectively) Accounts Receivable, after Allowance for Credit Loss, Current Accumulated deficit Retained Earnings (Accumulated Deficit) Schedule of Short-Term Debt Schedule of Short-Term Debt [Table Text Block] Product and Service [Axis] Product and Service [Axis] Restricted cash, non-current Restricted Cash, Noncurrent All Currencies [Domain] All Currencies [Domain] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Short-Term Debt [Line Items] Short-Term Debt [Line Items] Ordinary Shares Common Stock [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Purchase obligation to be incurred within one year Unrecorded Unconditional Purchase Obligation, Due in Next Rolling 12 Months Weighted-average interest rate per annum Short-Term Debt, Weighted Average Interest Rate, at Point in Time Loans Payable Loans Payable [Member] Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and shareholders’ equity Liabilities and Equity Share options Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Inventories Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Acquisition of intangible assets Payments to Acquire Intangible Assets Other income, net Other Nonoperating Income (Expense) Name Awards Close in Time to MNPI Disclosures, Individual Name Entity Address, Country Entity Address, Country Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative expenses General and Administrative Expense Schedule of Other Current Liabilities Other Current Liabilities [Table Text Block] Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Receivables for stock option exercise under equity incentive plans Receivables for Stock Option Exercise under Equity Incentive Plans Receivables for Stock Option Exercise under Equity Incentive Plans Payables for public offering costs Non Cash Payable For Public Offering Costs Non cash payables for public offering costs. Terminated Pre Clinical Program Terminated Pre-Clinical Program [Member] Terminated Pre-Clinical Program Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Adjustment to Compensation: Adjustment to Compensation [Axis] Reportable Segment Reportable Segment [Member] Reportable Segment Class of Stock [Domain] Class of Stock [Domain] Laboratory equipment Laboratory Equipment [Member] Laboratory equipment. Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hong Kong dollar (“HK$”) Hong Kong, Dollars Deferred income Deferred Income, Noncurrent Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount BOCOM Bank of Communications Co., Ltd [Member] Bank of Communications Co., Ltd Name Measure Name Income Tax Income Tax Disclosure [Text Block] Cash and Cash Equivalent [Table] Cash and Cash Equivalent [Table] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional paid in capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Short-term investments Short-Term Investments Repayment of short-term bank borrowings Repayments of Short-Term Debt Restricted Net Assets Restricted Assets Disclosure [Text Block] Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Raw materials Inventory, Raw Materials, Net of Reserves Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization expenses Depreciation, Depletion and Amortization Bank of China Working Capital Loans Bank of China Working Capital Loan Facility [Member] Bank of China Working Capital Loan Facility Cash and Cash Equivalents Cash and Cash Equivalents Disclosure [Text Block] Entity Address, Address Line Two Entity Address, Address Line Two Current assets Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit (expense) Income Tax Expense (Benefit) Foreign currency gains Gain (Loss), Foreign Currency Transaction, before Tax Cost of product revenue Cost of Product and Service Sold Cash-settled performance-based restricted shares Cash-Settled Performance-Based Restricted Shares [Member] Cash-Settled Performance-Based Restricted Shares Award Timing Method Award Timing Method [Text Block] Other Product and Service, Other [Member] Principles of Consolidation Consolidation, Policy [Policy Text Block] Net (decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Other costs Other Research and Development Expense Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Numerator: Net Income (Loss) Attributable to Parent [Abstract] China Merchants Bank Working Capital Loans China Merchants Bank Working Capital Loan Facility [Member] China Merchants Bank Working Capital Loan Facility Tranche three Share-Based Payment Arrangement, Tranche Three [Member] Net loss Net loss Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Proceeds from the sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Statement [Table] Statement [Table] Tranche two Share-Based Payment Arrangement, Tranche Two [Member] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercises of stock options Proceeds from Stock Options Exercised Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Interest income Investment Income, Interest Proceeds from short-term debt Proceeds from Short-Term Debt Clinical programs Research And Development Expense, Clinical Programs Research And Development Expense, Clinical Programs Foreign currency remeasurement impact Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Revenues Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]