NOLs utilized Net Operating Loss Carryforward Utilized The amount of net operating loss carryforwards that were utilized to reduce taxable income under enacted tax laws. Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Customer [Domain] Customer [Domain] Convertible Debt Convertible Debt [Member] State Current State and Local Tax Expense (Benefit) Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Severance related costs Business Combination, Integration Related Costs Leasehold improvements Leasehold Improvements [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net earnings Net earnings Net Income (Loss) Attributable to Parent Consolidated Entities [Axis] Consolidated Entities [Axis] Operating lease assets Operating Lease, Right-of-Use Asset Purchase price consideration Schedule of Business Acquisitions, by Acquisition [Table Text Block] Marketable securities Debt Securities, Available-for-sale, Current Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Accrued compensation Employee-related Liabilities, Current Prepaid expenses and other assets Increase (Decrease) In Prepaid Deferred Expense And Other Current Assets Amount of increase (decrease) in prepaid expenses, and other current assets. Income Statement Location [Axis] Income Statement Location [Axis] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Acquisition-related costs Business Combination, Acquisition Related Costs Statistical Measurement [Domain] Statistical Measurement [Domain] Additional cash payments upon milestone achievements maximum Business Combination, Contingent Consideration Arrangements, Consecutive Twelve-Month Net Sales Threshold, Period Two Business Combination, Contingent Consideration Arrangements, Consecutive Twelve-Month Net Sales Threshold, Period Two Sales return period subsequent to expiry date Sales Return Period Represents the period within which a product can be returned by the customers to the entity subsequent to the expiry date. Security Exchange Name Security Exchange Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price APOKYN and SPN-830 APOKYN And SPN-830 [Member] APOKYN And SPN-830 Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Weighted-average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Leased Assets Leased Assets [Member] Leased Assets Other assets Other Assets, Noncurrent Investment, Name [Axis] Investment, Name [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Dividend yield (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Retirement Benefits [Abstract] Retirement Benefits [Abstract] Acquired In-process Research & Development In Process Research and Development [Member] Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Entity File Number Entity File Number Schedule of other (expenses) income Schedule of Other Nonoperating Income (Expense) [Table Text Block] Share-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Amortization of intangibles Deferred Tax Liabilities, Intangible Assets Aggregate intrinsic value of shares exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Change in fair value recognized in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Goodwill, Purchase Accounting Adjustments Goodwill, Purchase Accounting Adjustments Acquisition of Adamas, net of cash acquired Payments to Acquire Business Two, Net of Cash Acquired Number of renewal options Lessee, Operating Lease, Number Of Renewal Options Lessee, Operating Lease, Number Of Renewal Options Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Minimum guaranteed amounts owed to company Minimum Guaranteed Amounts Owed to Company Minimum guaranteed amount owed to company from license and royalty revenue. Amortization of intangible assets Amortization of Intangible Assets Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Represents the information pertaining to employee stock purchase plan. Contingent consideration, long term Business Combination, Contingent Consideration, Liability, Noncurrent [Member] Business Combination, Contingent Consideration, Liability, Noncurrent Intangible assets Estimated Fair Value Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Gross increases related to prior year tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Schedule of inventories Schedule of Inventory, Current [Table Text Block] Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Common stock equivalents excluded in the calculation of diluted income per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Conversion Circumstance Two Conversion Circumstance Two [Member] Conversion Circumstance Two Research and development Research and Development Expense [Member] Aggregate Intrinsic Value (in thousands) Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] n/a Subsequent Events [Abstract] Subsequent Events [Abstract] Operating earnings Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Total deferred tax asset, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Weighted average fair value, grant date, (in dollars per share) 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 Equity instruments other than options, vested in period, fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Total fair value of assets acquired Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets Acquired SPN-830 First Commercial And Sale Milestone SPN-830 First Commercial And Sale [Member] SPN-830 First Commercial And Sale Share-based Payment Arrangement, Performance Shares, Activity Share-based Payment Arrangement, Performance Shares, Activity [Table Text Block] Total property and equipment, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Title of Individual [Domain] Title of Individual [Domain] Common stock issued upon conversion of Notes (in shares) Debt Conversion, Converted Instrument, Shares Issued Award Type [Domain] Award Type [Domain] Anticipated annual amortization expense for the next five years Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Summary of liability component of 2023 Notes Convertible Debt [Table Text Block] Local Phone Number Local Phone Number Percentage of eligible compensation, second level, partially matched by employer Employer Match Employee Contribution Level Two Represents the second level of employee contributions (percentage of compensation), which are partially matched by the employer. Assets Assets [Abstract] Schedule of unrestricted marketable securities Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Long term marketable securities Debt Securities, Noncurrent [Abstract] NAMENDA XR/Namzaric Qui Tam Litigation NAMENDA XR/Namzaric Qui Tam Litigation [Member] NAMENDA XR/Namzaric Qui Tam Litigation Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Vested and expected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Lease assets obtained for new finance lease Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Schedule of contractual maturities of the unrestricted available for sale marketable securities held Investments Classified by Contractual Maturity Date [Table Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Maximum percentage of participating employee annual compensation that the company may elect to make a discretionary contribute towards Defined Contribution Plan, Maximum Discretionary Employer Contribution Percentage Represents the maximum percentage of participating employee annual compensation, that the employer may discretionary decide to contribute to a defined contribution plan. New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Concentration risk percentage Concentration risk percentage (more than) Concentration Risk, Percentage New Accounting Pronouncements or Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Outstanding at the beginning of the period (in shares) Outstanding at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Consecutive trading day period (in days) Debt Instrument, Convertible, Threshold Consecutive Trading Days Product shelf life Products, Shelf Life Represents the period within which a product can be expired. Cash received from sale of subsidiary Proceeds from Divestiture of Businesses and Interests in Affiliates Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Deferred Financing Costs Debt Instrument, Interest Rate, Stated Percentage [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Advertising Expense Advertising Cost [Policy Text Block] Other Liabilities Disclosure [Abstract] Operating lease assets Deferred Tax Liabilities, Leasing Arrangements Royalty revenue agreements Royalty Agreements [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Tax expense on uncertain tax positions Income Tax Expense on Uncertain Tax Position The amount represents the income tax expense on uncertain tax position. VIE, qualitative or quantitative information, ownership percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Operating leases Leases, Operating [Abstract] Finance lease cost: Financing Lease, Cost [Abstract] Financing Lease, Cost Minimum age requirement for employees to participate in the plan Defined Contribution Plan Eligibility Minimum Age Represents the minimum eligibility age for employees to participate in the defined contribution plan. Accrued product returns Accrued Product Returns Represents the amount of accrued product returns. Inventory, Current [Table] Inventory, Current [Table] Accounts receivable Increase (Decrease) in Accounts Receivable Lease assets and tenant receivables obtained for new operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Business acquisition, pro forma information Business Acquisition, Pro Forma Information [Table Text Block] Schedule of significant components of deferred tax assets (liabilities) Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Property and equipment Property, Plant and Equipment [Line Items] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Cash paid for finance lease Finance Lease, Principal Payments Payment for option issue fee Collaborative Arrangement, Payment For Option Issue Fee Collaborative Arrangement, Payment For Option Issue Fee Number of operating segments Number of Operating Segments Share-based Payments Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Basic (in dollars per share) Earnings per share, basic (in dollars per share) Earnings Per Share, Basic Contingent consideration, current portion Business Combination, Contingent Consideration, Liability, Current Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Disaggregated Revenues Revenue from Contract with Customer [Text Block] Revenue Recognition Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Nonvested, beginning balance (in shares) Nonvested, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Balance at December 31, 2020 Balance at December 31, 2021 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Interest expense Interest Expense, Debt Summary of disaggregation of revenue by nature Disaggregation of Revenue [Table Text Block] Company's contribution to the 401(k) Plan Defined Contribution Plan, Cost Amortization of premium/discount on marketable securities Investment Income, Net, Amortization of Discount and Premium Number of RSUs Number of PSUs Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Interest limitation Deferred Tax Asset, Interest Carryforward Fair Value Measurement [Domain] Fair Value Measurement [Domain] Changes in fair value of contingent consideration Unrealized Gain (Loss) on Derivatives Adamas Pharmaceuticals Adamas Pharmaceuticals [Member] Adamas Pharmaceuticals Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Marketable securities - restricted (SERP) Assets for Plan Benefits, Defined Benefit Plan Purchase of property and equipment and deferred legal fees paid Payments To Acquire Property, Plant, And Equipment, And Deferred Legal Fees Payments To Acquire Property, Plant, And Equipment, And Deferred Legal Fees Maximum number of shares of common stock provided for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Net deferred tax liabilities Net deferred tax liabilities Deferred Tax Liabilities, Net Cash paid for operating leases Operating Lease, Payments Other noncash adjustments, net Other Noncash Income (Expense) Additional cash payments upon milestone achievements minimum Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Accrued clinical trial costs Accrued Clinical Trial and Clinical Supply Costs Current Represents the amount of clinical trial and clinical supply costs accrued. Other Deferred Tax Liabilities, Property, Plant and Equipment Research and Development Expenses Research and Development Expense, Policy [Policy Text Block] Product Candidates Product Candidates [Member] Product Candidates Lease liabilities, current Lease Liabilities, Current [Abstract] Lease Liabilities, Current Schedule of balance sheet information related to leases Lease Balance Sheet Disclosure [Table Text Block] Tabular disclosure of balance sheet information related to leases. Contingent consideration liability accrued in USWM Acquisition Business Combination, Consideration Transferred Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Customer B Customer B [Member] Represents Customer B. Entity Voluntary Filers Entity Voluntary Filers Total fair value of the underlying common stock related to shares that vested Aggregate fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value APOKYN APOKYN [Member] APOKYN Accrued product costs Inventory Adjustments Operating lease asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Plan Name [Axis] Plan Name [Axis] Assets: Assets, Fair Value Disclosure [Abstract] Finance lease asset Finance Lease, Right-of-Use Asset, after Accumulated Amortization Long-term Debt Long-term Debt Total assets at fair value Total assets at fair value Assets, Fair Value Disclosure Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] State income taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Entity Small Business Entity Small Business Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] Gross increases related to current year tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Other accrued expenses Other Accrued Liabilities, Current 2012 Plan Equity Incentive Plan2012 [Member] Represents information pertaining to the 2012 Equity Incentive Plan that provides for grants of stock options, purchase rights and awards to employees, officers, directors, consultants or advisors. Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Five Scenario [Axis] Scenario [Axis] Repayment of acquired Adamas loan Repayments of Assumed Debt Sales and maturities of marketable securities Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Additional paid-in capital Additional Paid in Capital U.S. government agency and municipal debt securities US Government Agencies Debt Securities [Member] Concentration risk percentage Concentration Risk [Line Items] Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Debt discount on 2023 Notes Deferred Tax Liabilities Debt Discount on Convertible Notes Amount of deferred tax liability attributable to taxable temporary differences from debt discount on convertible notes. Working capital adjustment Cash consideration to Seller - net of cash acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred, Cash Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred, Cash Initial estimate of contingent consideration at Closing Date Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities, Current Earnings per Share Earnings Per Share [Text Block] Entity Interactive Data Current Entity Interactive Data Current 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Four Interest Expense Interest Expense, Policy [Policy Text Block] Sales-Based Contingent Consideration Liability Sales-Based Contingent Consideration Liability [Member] Sales-Based Contingent Consideration Liability Minimum Minimum [Member] Accrued product rebates Accrued Rebates Represents the amount of accrued rebates. Contingent consideration (gain) expense Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Marketable securities Marketable Securities, Current 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two SPN-830 NDA Approval Milestone SPN-830 NDA Approval Milestone [Member] SPN-830 NDA Approval Milestone Schedule of fair value of the financial assets and liabilities Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Conversion rate for the notes (in shares per $1,000 principal amount) Debt Instrument, Convertible, Conversion Ratio Balance Sheet Location [Domain] Balance Sheet Location [Domain] Schedule of financial liabilities that are not carried at fair value Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] Selling, general and administrative Selling, General and Administrative Expense Employees, Consultants and Advisors Employees Consultants And Advisors [Member] This member represents information pertaining to employees, consultants and advisors Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Fixed lease cost Operating Lease, Fixed Lease, Cost Amount of fixed lease cost, excluded from lease liability, recognized when obligation for payment is incurred for operating leases. Other comprehensive earnings (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Balance at beginning of period Balance at end of period Unrecognized Tax Benefits Income Tax Authority [Domain] Income Tax Authority [Domain] Total deferred tax assets Deferred Tax Assets, Gross Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Gross unrealized gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Entity Address, State or Province Entity Address, State or Province Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] USWM Acquisition MDD US Enterprises LLC (Formerly USWM Enterprises) [Member] MDD US Enterprises LLC (Formerly USWM Enterprises) Leases Lessee, Finance Leases [Text Block] Regulatory And Developmental Contingent Consideration Liability Regulatory And Developmental Contingent Consideration Liability [Member] Regulatory And Developmental Contingent Consideration Liability Other noncurrent assets Other Assets, Noncurrent [Abstract] Loss contingency, damages sought, value Loss Contingency, Damages Sought, Value Payments on finance lease liability Purchases Of Convertible Note Hedge The cash outflow representing the total cost of the convertible note hedge transactions. Current liabilities Liabilities, Current [Abstract] Issuance of common stock in connection with the Company’s equity award plans Stock Issued During Period, Value, New Issues Stock-based compensation expense Share-based Payment Arrangement, Accelerated Cost Market-Based Units Market Based Units [Member] Market Based Units Restatement [Axis] Revision of Prior Period [Axis] Acquisition of USWM, net of cash acquired Cash consideration to Seller - net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Balance (in shares) Balance (in shares) Shares, Outstanding Schedule of summary of the income tax expense (benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Payments Share-based Payment Arrangement [Text Block] Fair Value (Level 3) Fair Value, Inputs, Level 3 [Member] Inventories Inventory Disclosure [Text Block] Leases Lessee, Leases [Policy Text Block] Less accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Accounting Policies [Abstract] Accounting Policies [Abstract] Outstanding at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Issuance of common stock in connection with the Company’s equity award plans (in shares) Stock Issued During Period, Shares, New Issues Accrued product returns and rebates Total Accrued Product Returns and Rebates. Carrying value as of the balance sheet date of accrued product returns and rebates. Reconciliation Of Valuation Allowance [Roll Forward] Reconciliation Of Valuation Allowance [Roll Forward] Reconciliation Of Valuation Allowance Accrued professional fees Accrued Professional Fees, Current Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Federal Current Federal Tax Expense (Benefit) Lease liabilities Present value of lease liabilities Operating Lease, Liability Lease liabilities, long term Lease Liabilities, Noncurrent [Abstract] Lease Liabilities, Noncurrent Document Transition Report Document Transition Report Property and equipment additions from utilization of tenant improvement allowance Property And Equipment Additions From Utilization Of Tenant Improvement Allowance Property And Equipment Additions From Utilization Of Tenant Improvement Allowance Common stock, $0.001 par value; 130,000,000 shares authorized; 53,256,094 and 52,868,482 shares issued and outstanding as of December 31, 2021 and December 31, 2020, respectively Common Stock, Value, Issued Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Weighted-average period over which total unrecognized compensation expense is expected to be recognized (in years) Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Nonvested, beginning balance (in dollars per share) Nonvested, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Customer Concentration Risk Customer Concentration Risk [Member] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Performance-Based Awards Total PSUs Performance Shares [Member] Leases Lessee, Operating Leases [Text Block] Accumulated other comprehensive earnings, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Emerging Growth Company Entity Emerging Growth Company Amortization on finance lease asset Finance Lease, Right-of-Use Asset, Amortization USWM Acquisition Business Combination Disclosure [Text Block] Accrued product returns and rebates Increase (Decrease) in Accrued Product Returns and Rebates Amount of increase (decrease) in product returns and rebates. ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Other (Expense) Income Other Nonoperating Income and Expense [Text Block] Receivables [Abstract] Receivables [Abstract] SPN-830 FDA Acceptance Milestone SPN-830 FDA Acceptance Milestone [Member] SPN-830 FDA Acceptance Milestone Schedule of assumptions used in estimation of fair value of each award option on the date of grant using Black-Scholes option-pricing model Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Product Concentration Risk Product Concentration Risk [Member] MYOBLOC MYOBLOC [Member] MYOBLOC Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Legal Entity [Axis] Legal Entity [Axis] All Major Customers All Major Customers [Member] All Major Customers Auditor Name Auditor Name Cover page. Cover [Abstract] Stock options, RSUs, and SARs (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Deferred income tax liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Deferred Income Tax Liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Deferred Income Tax Liabilities Total costs and expenses Costs and Expenses Marketable Securities Marketable Securities, Policy [Policy Text Block] Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accrued product returns and rebates Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Pro forma net loss Business Acquisition, Pro Forma Net Income (Loss) Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Raw materials Pre-launch inventory, net Inventory, Work in Process and Raw Materials, Net of Reserves Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Warrants issued (in shares) Class of Warrant or Right, Outstanding Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Income Tax Authority [Axis] Income Tax Authority [Axis] Work in process Inventory, Work in Process, Net of Reserves Operating lease liability, long term Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Convertible note hedge options issued (in shares) Debt Conversion, Converted Instrument, Warrants or Options Issued Other Liabilities Other Liabilities [Table Text Block] Distribution from (investment in) Navitor Payments For (Proceeds From) Collaborative Arrangement, Investment Payments For (Proceeds From) Collaborative Arrangement, Investment Financial Instrument [Axis] Financial Instrument [Axis] Total Accrued Liabilities, Current Selling, general and administrative Selling, General and Administrative Expenses [Member] Entity [Domain] Entity [Domain] Total revenues Total revenues Revenues Revenue from Contract with Customer, Excluding Assessed Tax Finished goods Inventory, Finished Goods, Net of Reserves Numerator, dollars in thousands: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Accounts Receivable Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Stock Option Stock options, RSUs, PSUs Share-based Payment Arrangement, Option [Member] Total Fair Value Reported Value Measurement [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Nonrecourse liability related to sale of future royalties, long term Non-Recourse Liability, Noncurrent Non-Recourse Liability, Noncurrent Threshold for development costs payments Collaborative Arrangement, Threshold For Development Costs Payments Collaborative Arrangement, Threshold For Development Costs Payments Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Convertible notes, net Convertible Notes Payable [Member] Common Stock Common Stock [Member] Other (expense) income Other Nonoperating Income (Expense) [Abstract] Operating earnings Operating Income (Loss) Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Operating lease liabilities, current portion Operating Lease, Liability, Current Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 2022 Finite-Lived Intangible Asset, Expected Amortization, Year Two Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Document Fiscal Year Focus Document Fiscal Year Focus Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Share-based compensation expense Share-based Payment Arrangement, Noncash Expense Inventory [Axis] Inventory [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Number of votes to which holders of common shares are entitled for each share held Number of Votes Per Common Share Held Represents the number of votes to which the holders of common stock are entitled for each share held. Net product sales Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Previously Reported Previously Reported [Member] Capitalized patent defense costs Patent Defense Costs [Member] Represents information concerning the capitalized patent defense costs related to the Watson litigation. Total lease assets Lease, Right-Of-Use Asset Lease, Right-Of-Use Asset Purchases of marketable securities Payments to Acquire Debt Securities, Available-for-sale Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating lease liability Deferred Tax Assets, Operating Lease Liability Deferred Tax Assets, Operating Lease Liability Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Additions Deferred Tax Assets, Valuation Allowance, Additions Deferred Tax Assets, Valuation Allowance, Additions Total other expense Other Nonoperating Income (Expense) Other current liabilities Other Liabilities, Current Finite-lived and indefinite-lived intangible assets acquired as part of business combination Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Other Liabilities Other Liabilities Disclosure [Text Block] Business Combinations [Abstract] Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Total liabilities Liabilities Additional disclosures Intangible Assets, Net (Excluding Goodwill) [Abstract] Schedule of accrued expenses and accrued liabilities Schedule of Accrued Liabilities [Table Text Block] 2021 Finite-Lived Intangible Asset, Expected Amortization, Year One Award Type [Axis] Award Type [Axis] Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Fair value Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Schedule of maturities of operating lease liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Total stockholders’ equity Balance Balance Stockholders' equity Stockholders' Equity Attributable to Parent NOL carryforwards Operating Loss Carryforwards Additional cash payments upon milestone achievements minimum Business Combination, Contingent Consideration Arrangements, Consecutive Twelve-Month Net Sales Threshold, Period One Business Combination, Contingent Consideration Arrangements, Consecutive Twelve-Month Net Sales Threshold, Period One Common stock, shares issued (in shares) Common Stock, Shares, Issued City Area Code City Area Code Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Prepaid expenses and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Deductions Deferred Tax Assets, Valuation Allowance, Reductions Deferred Tax Assets, Valuation Allowance, Reductions Interest earned from cash, cash equivalents, and marketable securities Interest Revenue (Expense), Net Commitment period Long-term Purchase Commitment, Period Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Entity Address, City or Town Entity Address, City or Town Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Audit Information [Abstract] Audit Information Schedule of reconciliation of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Risk-free interest rate, minimum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Operating lease liabilities, long term Operating Lease, Liability, Noncurrent Adjustments for New Accounting Pronouncements [Axis] Accounting Standards Update [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Interest expense Interest Expense Trokendi XR Trokendi XR Trokendi Xr [Member] Represents information pertaining to Trokendi XR patent litigation. Principal amount of debt 2023 Notes Debt Instrument, Face Amount Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Effective interest rate (as percent) Debt Instrument, Interest Rate, Effective Percentage Expected volatility, maximum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Employer match of employee contributions on the second level of salary deferral (as a percent) Defined Contribution Plan Employer Match Level Two Represents the employer matching contribution of the second level of employee contributions. Total purchase price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Fair value of common stock (in dollars per share) Share Price Retained earnings Retained Earnings (Accumulated Deficit) Convertible bond hedge Deferred Tax Assets Convertible Bond Hedge The tax effect, as of the balance sheet date, of the amount of the estimated future tax deductions arising from a convertible bond hedge, which can only be deducted for tax purposes when relevant losses are realized or actual obligations are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Operating lease cost: Operating Lease, Cost [Abstract] Operating Lease, Cost Litigation Case [Domain] Litigation Case [Domain] Maximum contractual term of share-based grants Contractual term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period RSUs Restricted Stock Units (RSUs) [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Restatement [Domain] Revision of Prior Period [Domain] Schedule of recognized identified assets acquired and liabilities assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Entity Filer Category Entity Filer Category Total deferred tax liabilities Deferred Tax Liabilities, Gross Business Acquisition [Line Items] Business Acquisition [Line Items] Employer match of employee contributions on the first level of salary deferral (as a percent) Defined Contribution Plan Employer Match Level One Represents the employer matching contribution of the first level of employee contributions. Debt Conversion Description [Axis] Debt Conversion Description [Axis] Income Statement [Abstract] Income Statement [Abstract] Concentration Risk [Table] Concentration Risk [Table] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Entity Registrant Name Entity Registrant Name Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Variable lease cost Operating Lease, Variable Lease, Cost Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for operating leases. Weighted-Average Remaining Contractual Term (in years) Share Based Compensation Arrangement by Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Reconciliation of the beginning and ending balances related to the contingent consideration Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Accounts receivable, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Number development products Number Of Proprietary Development Products Number Of Proprietary Development Products Acquired in-process research and development Indefinite-lived Intangible Assets (Excluding Goodwill) Proceeds from stock options exercised Proceeds from Stock Options Exercised Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Income tax expense Income tax expense Income Tax Expense (Benefit) Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Amendment Flag Amendment Flag Equity Components [Axis] Equity Components [Axis] Entity Tax Identification Number Entity Tax Identification Number Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Document Fiscal Period Focus Document Fiscal Period Focus Total current assets Assets, Current Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Percentage of Accounts Receivable, net Accounts Receivable [Member] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Forfeited (in shares) Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Inventories, net Total inventories Inventory, Net Share-Based Compensation Share-based Payment Arrangement [Policy Text Block] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Equity Method Investments and Joint Ventures [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) 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] Interest and other income, net Other Nonoperating Income Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Contingent consideration, long term Business Combination, Contingent Consideration, Liability, Noncurrent Marketable securities Debt Securities, Current [Abstract] Product and Service [Axis] Product and Service [Axis] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Entity Public Float Entity Public Float Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] XADAGO XADAGO [Member] XADAGO Weighted average fair value, grant date, options (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract] Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract] Equity Component [Domain] Equity Component [Domain] Lab equipment and furniture Lab Equipment And Furniture [Member] Represents information pertaining to lab equipment and furniture. 2022 Lessee, Operating Lease, Liability, to be Paid, Year One Lease assets and tenant receivable obtained for new operating leases Right-of-Use Asset Obtained In Exchange For Operating And Finance Lease Liability Right-of-Use Asset Obtained In Exchange For Operating And Finance Lease Liability Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Deferred tax assets: Components of Deferred Tax Assets [Abstract] Long term marketable securities Marketable Securities, Noncurrent Statement [Line Items] Statement [Line Items] Litigation Case [Axis] Litigation Case [Axis] Property and equipment, net Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Charitable contributions Deferred Tax Assets, Charitable Contribution Carryforwards Conversion option stock price trigger (in dollars per share) Debt Instrument, Convertible, Stock Price Trigger Payment to resolve U.S. Department of Justice allegations Litigation Settlement, Amount Awarded to Other Party Number of commercial products Number Of Proprietary Commercial Products The number of proprietary commercial products market by the company. Weighted- Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Long term marketable securities Debt Securities, Available-for-sale, Noncurrent Schedule of property and equipment Schedule of Property Plant and Equipment Components [Table Text Block] Tabular disclosure of the components of property, plant and equipment. Liabilities Liabilities [Abstract] U.S. Federal Domestic Tax Authority [Member] Accrued Product Returns and Rebates Accrued Product Returns and Rebates [Text Block] The entire disclosure for accrued product returns and rebates. Total fair value Total Debt Securities, Available-for-sale Additional cash payments upon milestone achievements maximum Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Contingent consideration liability, high value Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High Fair Value Convertible Debt, Fair Value Disclosures 2025 Lessee, Operating Lease, Liability, to be Paid, Year Four Debt Disclosure [Abstract] Debt Disclosure [Abstract] Percentage of eligible compensation, first level, matched by employer Defined Contribution Plan Employer Match Employee Contribution Level One Represents the first level of employee contributions (percentage of compensation), which are matched by the employer. Finance lease liability, long term Finance Lease, Liability, Current Purchase price percentage Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Type of Adoption [Domain] Accounting Standards Update [Domain] Schedule of gross carrying amount and related accumulated amortization of goodwill and intangible assets Schedule of Intangible Assets and Goodwill [Table Text Block] Research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Less: valuation allowance Valuation allowance related to acquisition Beginning balance Ending balance Deferred Tax Assets, Valuation Allowance Auditor Location Auditor Location Amortized cost Debt Securities, Available-for-sale, Amortized Cost Allowance for expected sales discounts and allowances Allowance for Expected Sales deductions Represents the allowance for sales discounts related to prompt-pay discounts and contractual fee for service arrangements to wholesalers and distributors. Remaining Weighted- Average Amortization Period (Years) Finite-Lived Intangible Asset, Useful Life Accrued compensation and stock based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Contingents value rights Business Combination, Contingent Consideration, Number Of Contingent Value Rights Per Common Share Business Combination, Contingent Consideration, Number Of Contingent Value Rights Per Common Share Customer [Axis] Customer [Axis] Interest on lease liability Finance Lease, Interest Expense Proceeds from governmental loan and grant Proceeds From Governmental Loans And Grants Proceeds From Governmental Loans And Grants Employee Benefit Plan Retirement Benefits [Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Schedule of computation of basic and diluted net earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Granted options (in shares) Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Threshold trading days (whether or not consecutive) Debt Instrument, Convertible, Threshold Trading Days Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Document Annual Report Document Annual Report Other comprehensive earnings (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Schedule of share-based compensation expense Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Forecast Forecast [Member] Title of 12(b) Security Title of 12(b) Security Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Total assets Assets Investment, Name [Domain] Investment, Name [Domain] Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Directors Director [Member] Plan Name [Domain] Plan Name [Domain] Operating lease liability Operating lease liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability Common stock, shares authorized (in shares) Common Stock, Shares Authorized Cash paid for interest on convertible notes Interest Paid, Excluding Capitalized Interest, Operating Activities Osmolex ER Osomolex ER [Member] Osomolex ER Net earnings Net Income (Loss) Available to Common Stockholders, Basic Title of Individual [Axis] Title of Individual [Axis] Document Type Document Type Research and development Research and Development Expense Product and Service [Domain] Product and Service [Domain] Schedule of accrued sales deductions Schedule of Accrued Product Returns and Rebates [Table Text Block] Tabular disclosure of the accrued product returns and rebates. Depreciation and amortization expense Depreciation, Depletion and Amortization, Nonproduction Interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Organization and Nature of Operations Organization and Nature of Operations Optional lease renewal term (in years) Lessee, Operating Lease, Renewal Term Contingent consideration, liability Business Combination, Contingent Consideration, Liability Number of annual installments in which the awards would generally vest starting on the first anniversary of the date of grant Share Based Compensation Arrangement by Share Based Payment Award, Award Vesting Number of Installments from First Anniversary of Grant Date Represents the number of installments in which the awards would generally vest starting from the first anniversary of the date of grant. Investments Equity Securities, FV-NI, Cost Share-Based Compensation Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Convertible notes, net Carrying Value Total carrying value Convertible Notes Payable, Noncurrent Cash Cash [Member] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Measurement Frequency [Axis] Measurement Frequency [Axis] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Research and development credit carryforwards Tax Credit Carryforward, Amount Accrued expenses and other current liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Accrued Expenses And Other Current Liabilities Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Accrued Expenses And Other Current Liabilities Greater than 4 years Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Four Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Four 3 years to 4 years Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, Year Three To Year Four Fair value of available-for-sale debt securities maturing in the third fiscal year through the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Navitor investment R&D expense Research and Development in Process Schedule of lease costs and supplemental cash flow information Lease, Cost [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Basic (in shares) Weighted average shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in dollars per share) Earnings per share, diluted (in dollars per share) Earnings Per Share, Diluted State State and Local Jurisdiction [Member] Effect of dilutive securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Amortization of deferred financing costs and debt discount Amortization of Debt Issuance Costs and Discounts Conversion rate of the notes on trading day (as percent) Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Net product sales Product [Member] Total Financing Lease, Cost Financing Lease, Cost Market Based Awards Market Based Performance Shares [Member] Market Based Performance Shares Income taxes paid Income Taxes Paid, Net Intangible Assets Intangible Assets, Finite-Lived, Policy [Policy Text Block] Subsequent Events Subsequent Events [Text Block] Comprehensive earnings Comprehensive Income (Loss), Net of Tax, Attributable to Parent Intangible assets, net Total intangible assets Intangible Assets, Net (Excluding Goodwill) Contract liabilities Contract with Customer, Liability Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Weighted-average shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Deferred income tax liabilities, net Deferred Income Tax Liabilities, Net Vesting period (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year to 2 years Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, Year One To Year Two Fair value of available-for-sale debt securities maturing after the first year through the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Conversion Circumstance One Conversion Circumstance One [Member] Conversion Circumstance One Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Property and equipment, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Corporate debt securities Corporate Debt Securities [Member] Schedule of maturities of financing lease liabilities Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] Schedule of reconciliation of income tax expense Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Fair Value of Financial Instruments and Contingent Consideration Fair Value Disclosures [Text Block] Accounts payable Accounts Payable, Current Sales return period prior to expiry date Sales Return Period Prior To Expiration Represents the period within which a product can be returned by the customers to the entity prior to the expiry date. Concentration Risk Type [Axis] Concentration Risk Type [Axis] Depreciation and amortization Depreciation, Depletion and Amortization Customer C Customer C [Member] Represents Customer C. 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Three Annual minimum purchase quantity requirement amount Purchase Commitment, Annual Minimum Amount Committed Purchase Commitment, Annual Minimum Amount Committed Business Combinations and Contingent Considerations Business Combinations Policy [Policy Text Block] Accumulated Other Comprehensive Earnings (Loss) AOCI Attributable to Parent [Member] Inventories Increase (Decrease) in Inventories Accrued royalties Accrued Royalties, Current Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Financial Instruments [Domain] Financial Instruments [Domain] Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Revenue Revenues [Abstract] Other liabilities Other Sundry Liabilities, Noncurrent Customer A Customer A [Member] Represents Customer A. Goodwill and Goodwill Impairment Assessment Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Software Computer Software, Intangible Asset [Member] Document Period End Date Document Period End Date Entity Central Index Key Entity Central Index Key Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Income per share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Inventory [Domain] Inventory [Domain] Consolidated Entities [Domain] Consolidated Entities [Domain] Number of Options and SAR Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] State Deferred State and Local Income Tax Expense (Benefit) Research and development credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards, Research Income Statement Location [Domain] Income Statement Location [Domain] Gross decreases related to prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Noncash investing and financing activity: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Transaction costs Business Acquisition, Transaction Costs Accounts Receivable, Net Accounts Receivable, after Allowance for Credit Loss [Abstract] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Patent infringement legal costs Deferred Tax Liabilities Infringement Legal Cost Amount of deferred tax liability attributable to taxable temporary differences from Infringement legal cost. Stock option and Stock Appreciation Rights Stock Option Stock Appreciation Rights [Member] Represents information related to stock option awards for employees and non-employees as well as stock appreciation rights. Other liabilities Total Other Liabilities, Noncurrent Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument [Line Items] Trading Symbol Trading Symbol Earnings Per Share [Abstract] Earnings Per Share [Abstract] License and collaboration agreements Collaborative Arrangement [Member] Pro forma total revenues Business Acquisition, Pro Forma Revenue Property and equipment, gross Property, Plant and Equipment, Gross Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Current debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt Percentage of Net Product Sales Revenue from Contract with Customer Benchmark [Member] Strike price of the warrant transactions (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Outstanding at the beginning of the period (in dollars per share) Outstanding at the end of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Estimated adjustment for product returns related to prior year sales Contract With Customer, Change In Refund Liability Contract With Customer, Change In Refund Liability Goodwill Goodwill, Gross Costs and expenses Costs and Expenses [Abstract] Total Share-based Payment Arrangement, Expense Cost of Goods Sold Cost of Goods and Service [Policy Text Block] Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Acquisition Accounting Deferred Tax Assets, Valuation Allowance, Increase From Acquisition Accounting Deferred Tax Assets, Valuation Allowance, Increase From Acquisition Accounting Entity Current Reporting Status Entity Current Reporting Status Earnings per share Earnings Per Share, Basic and Diluted [Abstract] Weighted- Average Grant Date Fair Value per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Expected volatility, minimum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Total lease liabilities Lease, Liability Lease, Liability Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Agreement termination notice period Collaborative Arrangement, Agreement Termination Notice, Period Collaborative Arrangement, Agreement Termination Notice, Period Payables and Accruals [Abstract] Payables and Accruals [Abstract] Total fair value of liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Construction-in-progress Construction in Progress [Member] Performance-Based Units Performance Based Units [Member] Performance Based Units Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Impairment due to credit losses Debt Securities, Available-for-sale, Allowance for Credit Loss Risk-free interest rate, maximum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Schedule of customers that represent more than 10% of total revenue and more than 10% of accounts receivable, net Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Current assets Assets, Current [Abstract] Intangible assets subject to amortization: Finite-Lived Intangible Assets, Gross Leases [Abstract] Leases [Abstract] Income Taxes Income Tax, Policy [Policy Text Block] Remaining Weighted- Average Amortization Period (Years) Finite-Lived Intangible Assets, Remaining Amortization Period Impairment of Long-Lived Assets and Impairment of Indefinite-Lived Intangible Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Tax expense related to prior year position Unrecognized Tax Benefits, Increase Resulting From Lapse of Applicable Statute Of Limitations Unrecognized Tax Benefits, Increase Resulting From Lapse of Applicable Statute Of Limitations Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Entity Address, Postal Zip Code Entity Address, Postal Zip Code Interest expense on nonrecourse liability related to sale of future royalties Interest Expense, Other Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Diluted (in shares) Weighted average shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Permanent items Effective Income Tax Rate Reconciliation, Permanent Items, Amount Effective Income Tax Rate Reconciliation, Permanent Items, Amount Conversion of debt to equity Debt Conversion, Original Debt, Amount Adamas Acquisition Adamas [Member] Adamas Recurring Fair Value, Recurring [Member] Income Taxes Income Tax Disclosure [Text Block] Nonrecourse liability related to sale of future royalties, long term Non Recourse Debt Sale of Future Royalties Noncurrent Noncurrent portion of debt, net of the amount due within one year or the normal operating cycle, if longer, related to the sale of future royalties, for which the creditor does not have general recourse to the debtor but rather has recourse only to the property used for collateral in the transaction or other specific property. Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Summary of stock option and SAR activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Measurement Basis [Axis] Measurement Basis [Axis] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Five Schedule of common stock equivalents excluded in the calculation of diluted earnings per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Oxtellar XR Oxtellar X R [Member] Represents information pertaining to Oxtellar XR product. Investment Deferred Tax Assets, Investments Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Auditor Firm ID Auditor Firm ID Realized gains from sales of marketable securities Marketable Securities, Realized Gain (Loss) Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Royalty revenue Royalty [Member] Entity Address, Address Line One Entity Address, Address Line One Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Navitor Pharmaceuticals, Inc. Navitor Pharmaceuticals, Inc. [Member] Navitor Pharmaceuticals, Inc. Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Disaggregation of Revenue [Abstract] Disaggregation of Revenue [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Unrealized gain (loss) on marketable securities, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent GOCOVRI GOCOVRI [Member] GOCOVRI Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] 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 Future Sales Performance SPN-830 Future Sales Performance [Member] SPN-830 Future Sales Performance Consolidation Consolidation, Policy [Policy Text Block] Entity Shell Company Entity Shell Company Spend commitment amount Purchase Commitment, Remaining Minimum Amount Committed Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Total current liabilities Liabilities, Current Cash consideration Payments to Acquire Businesses, Gross Qelbree Qelbree [Member] Qelbree Accrued Product Returns and Rebates Accrued Product Returns and Rebates No definition available. Summary of Valuation Allowance Summary of Valuation Allowance [Table Text Block] Money market funds Money Market Funds [Member] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Current Fiscal Year End Date Current Fiscal Year End Date Unamortized debt discount and deferred financing costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Statement [Table] Statement [Table] 2 years to 3 years Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, Year Two To Year Three Fair value of available-for-sale debt securities maturing in the second fiscal year through the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Advertising costs Advertising Expense Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Other Deferred Tax Assets, Other Senior Notes 2023 Senior Notes 2023 [Member] Senior Notes 2023 Total unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Costs of goods sold Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Statistical Measurement [Axis] Statistical Measurement [Axis] Accounts Receivable, net Accounts Receivable [Policy Text Block] Income tax expense computed at U.S. federal statutory income tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Subsequent Event Subsequent Event [Member] Finance lease liability, long term Finance Lease, Liability, Noncurrent Goodwill Goodwill Goodwill Contingent consideration, current portion Business Combination, Contingent Consideration, Liability, Current [Member] Business Combination, Contingent Consideration, Liability, Current Contingent consideration liability related to acquisitions Business Combination, Contingent Consideration Arrangements, Acquisition Liability Business Combination, Contingent Consideration Arrangements, Acquisition Liability Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Accounting Standards Update 2020-06 Accounting Standards Update 2020-06 [Member] Inventories Inventory, Policy [Policy Text Block] Interest expense Total other expense Other Nonoperating Expense Scenario [Domain] Scenario [Domain] Organization and Business Nature of Operations [Text Block] Adjustments to reconcile net earnings to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Finance lease assets Finance Lease, Right-of-Use Asset, before Accumulated Amortization Less than 1 year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Acquired Developed Technology and Product Rights Developed Technology Rights [Member] Total Operating Lease, Cost Computer equipment Computer Equipment [Member] SPN-30 Regulatory and Commercial Activities SPN-830 Regulatory And Commercial Activities [Member] SPN-830 Regulatory And Commercial Activities Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Rights per share (in dollars per share) Business Combination, Contingent Consideration, Rights Per Share Business Combination, Contingent Consideration, Rights Per Share Inventory [Line Items] Inventory [Line Items] Net tax benefit as a result of statutes of limitation Income Tax Expense on Uncertain Tax Position, Alternate Minimum Tax The amount Of income tax expense on uncertain tax position, alternate minimum tax. Uncertain income tax position Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Noncash royalty revenue Revenue From Royalty Agreement Represents revenue from the sale of certain royalty and milestone rights. Maximum contribution by employee (as a percent) Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Convertible Senior Notes Due 2023 Long-term Debt [Text Block] Deferred income tax (benefit) provision Deferred Income Tax Expense (Benefit) Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term