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Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Summary of Accrued Expenses and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Non-PEO NEO Non-PEO NEO [Member] Outstanding, beginning balance Outstanding, ending balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Headcount hiring target Lease, Operating Lease, Headcount Hiring Target Lease, Operating Lease, Headcount Hiring Target Sale of Stock Sale of 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common stockholders Net Income (Loss) Available to Common Stockholders, Diluted Goodwill and Intangible Assets [Line Items] Goodwill and Intangible Assets [Line Items] Goodwill and Intangible Assets Commitment to spend, operational expenses, renewal lease term Leasehold Interest, Operational Expenses, Commitment to Spend, Renewal Lease Term Leasehold Interest, Operational Expenses, Commitment to Spend, Renewal Lease Term Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Weighted-average number of common shares outstanding – diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Annual minimum licensing payment Collaboration Agreements, Annual Minimum Licensing Payment Collaboration Agreements, Annual Minimum Licensing Payment NantWorks NantWorks, LLC 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Stock issued for warrant exercises (in shares) Sale of Stock, Number of Shares Issued in Transaction Treasury stock, common shares (in shares) Treasury Stock, Common, Shares Interest expense recognized Interest Expense, Other Long-Term Debt Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Four Finite-Lived Intangible Asset, Expected Amortization, after Year Four Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Maximum offering Sale Of Stock, Maximum Aggregate Offering Value Sale Of Stock, Maximum Aggregate Offering Value Total Lease Liability, Payments Due [Abstract] Lease Liability, Payments Due Largest Customer Largest Customer [Member] Largest Customer Gross profit Gross Profit Prepaid expenses Prepaid Expense 18 to 36 Months From Closing Date Period Three [Member] Period Three Less: Interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Two Principal Payments Related Party Notes - Principal [Member] Related Party Notes - Principal Principal Amount Long-Term Debt, Gross Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Collaborative Arrangement and Arrangement Other than Collaborative, Fee Schedule [Domain] Collaborative Arrangement and Arrangement Other than Collaborative, Fee Schedule [Domain] Collaborative Arrangement and Arrangement Other than Collaborative, Fee Schedule [Domain] Property, Plant and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Measurement Input, Market Yield Measurement Input, Market Yield [Member] Measurement Input, Market Yield Property, plant and equipment, net Property, plant and equipment, net Property, Plant and Equipment, Net Vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Entity Current Reporting Status Entity Current Reporting Status Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Purchase price allocation Sale Of Stock And Revenue Interest Purchase Agreement, Consideration Received On Transaction Sale Of Stock And Revenue Interest Purchase Agreement, Consideration Received On Transaction 2022 Collaborative Arrangement and Arrangement Other than Collaborative, Fee One [Member] Collaborative Arrangement and Arrangement Other than Collaborative, Fee One Transaction Transaction [Domain] Financial Instrument Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] More than 12 months, Gross Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Operating lease payments related to options to extend lease terms Operating Lease Payments Related To Options To Extend Lease Terms Operating lease payments related to options to extend lease terms. 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Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Common Stock Common Stock [Member] Vested (in units) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Net change in cash and cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Accrued professional and service fees Accrued Professional Fees, Current Research and Development Arrangement, Contract to Perform for Others, Type Research and Development Arrangement, Contract to Perform for Others, Type [Domain] Unrealized losses on marketable debt 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Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Number of Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Goodwill and intangible assets, net Intangible Assets, Gross (Including Goodwill) Intangible Assets, Gross (Including Goodwill) Class of Warrant or Right, Outstanding [Roll Forward] Class of Warrant or Right, Outstanding [Roll Forward] Class of Warrant or Right, Outstanding Cash and cash equivalents, and restricted cash, beginning of period Cash and cash equivalents, and restricted cash, end of period Cash, cash equivalents, and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Impairment of intangible assets Other Nonoperating Income (Expense) [Abstract] Warrant exercises (in shares) Number of warrants exercised (in shares) Class of Warrant or Right, Exercised Class of Warrant or Right, Exercised Altor Stockholders Altor Stockholders [Member] Altor Stockholders Accounting Policies [Abstract] Accounting Policies [Abstract] Summary of Future Minimum Lease Payments Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Cash paid for other equity securities Payments to Acquire Other Investments Payments to Acquire Other Investments Pay vs Performance Disclosure [Line Items] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Operating lease liabilities Present value of lease liabilities Operating Lease, Liability 2030 Lessee, Lease Liability, to be Paid, Year Four Lessee, Lease Liability, to be Paid, Year Four $505 Million Promissory Note, December 2023, Tranche 2 $505 Million Promissory Note, December 2023, Tranche 2 [Member] $505 Million Promissory Note, December 2023, Tranche 2 2025 Equity Incentive Plan Equity Incentive Plan, 2025 [Member] Equity Incentive Plan, 2025 Revenue interest payment Debt Instrument, Periodic Payment, Interest Other liabilities Other Liabilities, Noncurrent Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Goodwill impairment Goodwill, Impairment Loss Accrued expenses and other liabilities Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Purchase agreement milestone Purchase Agreement Milestone Purchase Agreement Milestone Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Accrued bonus Accrued Bonuses, Current Comprehensive loss attributable to ImmunityBio common stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Schedule of Changes in Carrying Amount of Warrant Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Proceeds from maturities of marketable debt securities, available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Class Of Stock [Line Items] Class of Stock [Line Items] Favorable Leasehold Rights Off-Market Favorable Lease [Member] Altor BioScience Corporation Altor BioScience, LLC [Member] Altor BioScience Corporation. Carrying value of debt Total Long-Term Debt Legal Entity Legal Entity [Axis] Total assets Assets 2027 Finite-Lived Intangible Asset, Expected Amortization, Year One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Riptide Bioscience, Inc. Riptide Bioscience, Inc. [Member] Riptide Bioscience, Inc. Geographical Geographical [Domain] Potential contingent value rights to be earned Contingent Value Rights Obligations Contingent value rights obligations. Unpaid RIPA issuance costs included in accrued expenses Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Inventories Inventory Disclosure [Text Block] Ownership percentage acquired Percentage Of Wholly Owned Subsidiary Percentage of wholly-owned subsidiary. 2030 Finite-Lived Intangible Asset, Expected Amortization, Year Four 2027 Finance Lease, Liability, to be Paid, Year One Warrant liabilities Outstanding stock options Warrant [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Right-of-use assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Schedule Of Available For Sale Securities [Line Items] Debt Securities, Available-for-Sale [Line Items] Level 2 Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination Business Combination [Domain] Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Related-Party Related Party [Member] Change in fair value of warrant liabilities Change in fair value of warrant liabilities Fair Value Adjustment of Warrants Plan Name Plan Name [Axis] PEO PEO [Member] Proceeds from the RIPA, net of issuance costs Proceeds from Third Payment, net of issuance costs Proceeds from Issuance of Secured Debt Non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Later Than 36 Months from Closing Date Period Four [Member] Period Four U.S. UNITED STATES 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] Accumulated Deficit Retained Earnings [Member] VivaBioCell VivaBioCell [Member] VivaBioCell. Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Income Statement [Abstract] Income Statement [Abstract] More than 12 months, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Sale of Stock Sale of Stock [Domain] Tiered Payments [Domain] Tiered Payments [Domain] Tiered Payments [Domain] Expected dividend yield Measurement Input, Expected Dividend Rate [Member] Product and Service [Domain] Product and Service [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Prepaid services Prepaid Services Prepaid services. Total ImmunityBio Stockholders’ Deficit Parent [Member] Net loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Conversion of related-party convertible note into equity Conversion of Stock, Amount Issued Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Schedule Of Business Acquisitions By Acquisition [Table] Business Combination [Table] Liabilities measured at fair value Liabilities, Fair Value Disclosure Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Cash Flow Operating Activities Lessee [Abstract] Cash Flow, Operating Activities, Lessee [Abstract] Payable and Accruals [Domain] Payable and Accruals [Domain] Payable and Accruals [Domain] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Financial Instruments Investment [Text Block] Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Debt Securities, Trading, and Equity Securities, FV-NI [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Selling, general and administrative Selling, General and Administrative Expenses [Member] Total lease expense Lease, Cost Investment held Equity Securities, FV-NI Goodwill, net Business combination, goodwill Goodwill Summary of Information Regarding Leases Lease, Cost [Table Text Block] Interest and investment income, net Interest and investment income, net Gain (Loss) on Investments Description of Business Nature of Operations [Text Block] Equipment Equipment [Member] July 2023 Warrants July 2023 Warrants [Member] July 2023 Warrants Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Other Performance Measure, Amount Other Performance Measure, Amount Weighted- Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Debt issuance costs Payments of Debt Issuance Costs Financing obligation Debt, Current Related Party Related and Nonrelated Parties [Domain] Current Liabilities Other Current Liabilities [Member] Revenue interest purchase agreement, payment received percentage Revenue Interest Purchase Agreement, Payment Received Percentage Revenue Interest Purchase Agreement, Payment Received Percentage Litigation Status [Axis] Litigation Status [Axis] Percentage of sales agent commission Percentage Of Sales Agent Commission Percentage Of Sales Agent Commission Lease Arrangements Lessee, Finance Leases [Text Block] Exercise of warrants Stock Issued During Period, Value, Warrants Exercised Stock Issued During Period, Value, Warrants Exercised Other Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Entity Entity [Domain] Accrued sales costs Accrued Marketing Costs, Current Net cash (used in) provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Accrued preclinical and clinical trial costs Accrued Preclinical And Clinical Trial Costs Accrued preclinical and clinical trial costs. Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets, net Operating lease assets (including amounts with related parties) Operating Lease, Right-of-Use Asset Operating lease costs Operating Lease, Cost Periodic license payments, annual Collaboration Agreements, Periodic License Payments Collaboration Agreements, Periodic License Payments RIPA derivative liability Derivative Liabilities [Member] Derivative Liabilities Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Plan Name Plan Name [Domain] Weighted-average period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Other research and development costs Research and Development Expense, Internal, Other Costs Research and Development Expense, Internal, Other Costs Exercise of stock options (in shares) Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Equity [Abstract] July 2025 Warrant July 2025 Warrants [Member] July 2025 Warrants Estimated liability Estimated Litigation Liability 2027 Lessee, Lease Liability, to be Paid, Year One Lessee, Lease Liability, to be Paid, Year One Summary of Interest and Investment Income , Net Interest and Other Income [Table Text Block] Segment Information Segment Reporting Disclosure [Text Block] Financial Statement Details [Table] Financial Statement Details [Table] Financial Statement Details [Table] Valuation Technique, Binomial Lattice Model Valuation Technique, Binomial Lattice Model [Member] Valuation Technique, Binomial Lattice Model U.S. Treasury securities US Treasury Securities [Member] Cheryl Cohen [Member] Cheryl Cohen SRS/Altor Shareholder CVR Arbitration SRS/Altor Shareholder CVR Arbitration [Member] SRS/Altor Shareholder CVR Arbitration Increase (Decrease) in Statements of Stockholders’ Deficit [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Amortization expense Amortization of Intangible Assets Selling, general and administrative Selling, general and administrative (including amounts with related parties) Selling, General and Administrative Expense Expected average volatility Measurement Input, Volatility Measurement Input, Price Volatility [Member] Depreciation and amortization Depreciation, Depletion and Amortization Sale of stock issued in transaction Sale of Stock, Consideration Received on Transaction Term without written consent Lessee, Operating Lease, Term Without Written Prior Consent Lessee, Operating Lease, Term Without Written Prior Consent Unpaid offering costs included in accounts payable and accrued expenses Unpaid Offering Costs Included In Accounts Payable And Accrued Expenses Unpaid offering costs included in accounts payable and accrued expenses. 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February 2023 Shelf Registration Statement February 2023 Shelf Registration Statement [Member] February 2023 Shelf Registration Statement Inventory on hand Inventory, On Hand Expensed Prior to FDA Approval Inventory, On Hand Expensed Prior to FDA Approval Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Other assets Increase (Decrease) in Other Noncurrent Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Interest expense related to revenue interest liability Interest expense related to revenue interest liability Interest Expense, Other Vested and exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Offering costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Assets measured at fair value Assets, Fair Value Disclosure Number of operating segments Number of Operating Segments Accretion of discounts on marketable debt securities, available-for-sale Accretion (Amortization) of Discounts and Premiums, Investments Payment to acquire other equity security Payments to Acquire Equity Securities, FV-NI Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Related-Party Related and Nonrelated Parties [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Noncurrent Liabilities Other Noncurrent Liabilities [Member] Restatement Determination Date: Restatement Determination Date [Axis] Acquisition of Workforce and Office Equipment Acquisition of Workforce and Office Equipment [Member] Acquisition of Workforce and Office Equipment Interest expense Interest expense on related-party notes payable Interest Expense, Debt Name Trading Arrangement, Individual Name February 2023 Warrants February 2023 Warrants [Member] February 2023 Warrants External research and development expense (including amounts with related parties) Research and Development Expense, External Research and Development Expense, External Measurement input Warrants and Rights Outstanding, Measurement Input Face amount Debt Instrument, Face Amount Interest Payments Related Party Notes - Interest [Member] Related Party Notes - Interest Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Exercise of warrants (in shares) Stock Issued During Period, Shares, Warrants Exercised Stock Issued During Period, Shares, Warrants Exercised Option Period [Axis] Option Period [Axis] Option Period Due to and due from related parties, net Increase Decrease In Due To Related Parties Current And Non Current Increase decrease in due to related parties current and non current. 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Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Immuno-Oncology Clinic, Inc. Immuno-Oncology Clinic, Inc [Member] Immuno Oncology Clinic Inc. Purchases of marketable debt securities, available-for-sale Payments to Acquire Debt Securities, Available-for-Sale All Executive Categories All Executive Categories [Member] Finished goods Inventory, Finished Goods, Net of Reserves Common Stock, $0.0001 par value; 1,650,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 1,047,341,146 and 1,011,800,008 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively; excluding treasury stock, 163,800 shares outstanding as of March 31, 2026 and December 31, 2025 Common Stock, Value, Issued Finance lease assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Commitments and contingencies (Note 7) Commitments and Contingencies Total lease liabilities (including amounts with related parties) Lessee, Lease Liability Lessee, Lease Liability Business Combination Business Combination [Axis] Financial Statement Details [Abstract] Financial Statement Details [Abstract] Financial statement details. 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Reclassification of realized gain on instrument-specific credit risk Reclassification of change in fair value related to instrument-specific credit risk Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Reclassification Adjustment from AOCI for Derecognition, after Tax December 2024 Convertible Promissory Note $505 Million Promissory Note, December 2024 [Member] $505 Million Promissory Note, December 2024 Exercise price per share Measurement Input, Exercise Price [Member] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Weighted average remaining contractual life (in years) Debt Securities, Available-for-Sale, Term Geographical Geographical [Axis] Debt converted, shares issued (in shares) Debt Conversion, Converted Instrument, Shares Issued Lessee Lease Description [Line Items] Lessee, Lease, Description [Line Items] Net unrealized losses on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), before 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Potentially Dilutive Securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Summary of Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Initial Payment Initial Payment [Member] Initial Payment Embedded Derivative Financial Instruments Embedded Derivative Financial Instruments [Member] Thereafter Finance Lease, Liability, to be Paid, after Year Five Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Summary of RSU Activity under Equity Plans Nonvested Restricted Stock Shares Activity [Table Text Block] Award Timing Disclosures [Line Items] Statement of Inventories Schedule of Inventory, Current [Table Text Block] Prepayment and accrued interest upon specified transaction Debt Instrument, Prepayment And Accrued Interest Debt Instrument, Prepayment And Accrued Interest Measurement Frequency Measurement Frequency [Domain] Summary of Revenue Interest Liability Activity Summarizes the Revenue Interest Liability Activity [Table Text Block] Summarizes the Revenue Interest Liability Activity Optional extended lease term Lessee, Operating Lease, Renewal Term Stockholders’ Deficit Equity [Text Block] Net loss attributable to ImmunityBio common stockholders Net Income (Loss) Attributable to Parent Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Pending Litigation Pending Litigation [Member] Construction in progress Construction in Progress [Member] Headcount hiring target, exercise option Lease, Operating Lease, Headcount Hiring Target, Exercise Option Lease, Operating Lease, Headcount Hiring Target, Exercise Option Other Other Accrued Liabilities, Current Within 12 Months of Closing Date Period One [Member] Period One Segment Reporting Information [Line Items] Segment Reporting Information [Line 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Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation 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] Financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue Benchmark Revenue Benchmark [Member] Cumulative capital spending Leasehold Interest, Operational Expenses, Cumulative Capital Spending, Minimum Leasehold Interest, Operational Expenses, Cumulative Capital Spending, Minimum Risk-free interest rate Measurement Input, Risk Free Interest Rate [Member] Fair Value of Warrants, Carrying Amount [Roll Forward] Fair Value of Warrants, Carrying Amount [Roll Forward] Fair Value of Warrants, Carrying Amount Finance lease liabilities Finance Lease, Liability, Noncurrent All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Sale of stock (in dollars per share) Sale of Stock, Price Per Share Insurance premium financing asset Insurance Premium Financing Asset Insurance premium financing asset. Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] 3M IPC and Access to Advanced Health Institute License Agreement 3M IPC and AAHI Agreement [Member] 3M IPC and AAHI Agreement Second Payment Second Payment [Member] Second Payment Weighted average discount rate, operating leases Operating Lease, Weighted Average Discount Rate, Percent Summary of Stock Option Activity under Equity Plans Share-Based Payment Arrangement, Option, Activity [Table Text Block] Weighted-average number of common shares used in computing net loss per share – basic (in shares) Weighted-average number of common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] Warrant liabilities Warrants and Rights Outstanding Schedule of Basic and Diluted Loss Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Restricted cash (included in Other Assets) Restricted Cash and Cash Equivalent, Noncurrent Related Party Transaction Related Party Transaction [Domain] Segment Reporting [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Lease expense Operating Lease, Expense Other income (expense), net Nonoperating Income (Expense) [Abstract] Scenario [Domain] Scenario [Domain] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Dr. Soon-Shiong and Related Party Dr Soon-Shiong And Related Party [Member] Dr. Soon-Shiong and related party. Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross License Agreement Terms License Agreement Terms [Member] Use of Estimates Use of Estimates, Policy [Policy Text Block] Operating cash flow from finance leases Finance Lease, Interest Payment on Liability Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Other revenues Product and Service, Other [Member] Total liabilities Liabilities Antidilutive Securities, Name Antidilutive Securities, Name [Domain] 2031 Finance Lease, Liability, to be Paid, Year Five NantWorks NantWorks [Member] NantWorks. Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Issuance of common stock "at the market" offering, net of commissions and offering costs Stock Issued During Period, Value, New Issues Counterparty Name [Axis] Counterparty Name [Axis] Restricted Cash Restricted Cash [Member] Restricted Cash Fair Value Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]