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. Consolidated Entities [Axis] Consolidated Entities [Axis] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Gain (loss) in fair value recognized in earnings Change in fair value recognized in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Pay vs Performance Disclosure [Line Items] Entity Voluntary Filers Entity Voluntary Filers Total Accrued Liabilities, Current Customer D Customer D [Member] Customer D Statistical Measurement [Domain] Statistical Measurement [Domain] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Research and development Research and Development Expense Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Accrued royalties Accrued Royalties, Current Maximum contractual term of share-based grants Contractual term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Proceeds from sale of intangible assets Proceeds from Sale of Intangible Assets 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. Award Type [Domain] Award Type [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Investment, Name [Domain] Investment, Name [Domain] 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 Payments on Line of Credit Repayments of Short-Term Debt Amortization of premium/discount on marketable securities Investment Income, Net, Amortization of Discount and Premium Impairment of intangible assets Impairment of Intangible Assets (Excluding Goodwill) Other current liabilities Other Current Liabilities [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Research and Development Expenses Research and Development Expense, Policy [Policy Text Block] Revolving Credit Facility Revolving Credit Facility [Member] 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. Schedule of unrestricted marketable securities Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Equity Method Investments and Joint Ventures [Abstract] Deferred income tax liabilities, net Deferred Income Tax Liabilities, Net MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Performance-Based Awards Total PSUs Performance Shares [Member] Accounts payable Accounts Payable, Current Computer equipment Computer Equipment [Member] Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Restatement Determination Date: Restatement Determination Date [Axis] Investment, Name [Axis] Investment, Name [Axis] Lessee, Operating Lease, Liability, to be Paid [Abstract] Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Insider Trading Policies and Procedures [Line Items] Exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Five Accounts Receivable, Net Accounts Receivable, after Allowance for Credit Loss [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Inventory write-offs Inventory Write-down Ownership percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Income Tax Expense Income Tax Disclosure [Text Block] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Dividend yield (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Number of renewal options Lessee, Operating Lease, Number Of Renewal Options Lessee, Operating Lease, Number Of Renewal Options Concentration risk percentage Concentration Risk [Line Items] Directors Director [Member] Minimum guaranteed amounts owed to company Minimum Guaranteed Amounts Owed to Company Minimum guaranteed amount owed to company from license and royalty revenue. Leases Lessee, Leases [Policy Text Block] Customer [Axis] Customer [Axis] Current liabilities Liabilities, Current [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) Business Acquisition [Line Items] Business Acquisition [Line Items] Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount 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] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Payment of contingent consideration Payment of contingent consideration Payment for Contingent Consideration Liability, Financing Activities Raw materials Inventory, Work in Process and Raw Materials, Net of Reserves Aggregate Intrinsic Value (in thousands) Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] n/a Diluted (in dollars per share) Earnings per share, diluted (in dollars per share) Earnings Per Share, Diluted PEO Total Compensation Amount PEO Total Compensation Amount Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Accounting Standards Update [Extensible List] Accounting Standards Update [Extensible Enumeration] 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 Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Extinguishment of debt Extinguishment of Debt, Amount Unobservable Inputs that Reflect the Company's own Assumptions (Level 3) Fair Value, Inputs, Level 3 [Member] Line of Credit Line of Credit [Member] 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 Payment for contingent consideration liability, operating activities Payment for Contingent Consideration Liability, Operating Activities Other income (expense) Other Nonoperating Income (Expense) [Abstract] Total fair value Total Debt Securities, Available-for-Sale, Excluding Accrued Interest Litigation Case [Axis] Litigation Case [Axis] Trading Symbol Trading Symbol Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price 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 Net earnings Net earnings Net Income (Loss) NAMENDA XR/Namzaric Qui Tam Litigation NAMENDA XR/Namzaric Qui Tam Litigation [Member] NAMENDA XR/Namzaric Qui Tam Litigation Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Total current liabilities Liabilities, Current Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Leases Lessee, Operating Leases [Text Block] Total intangible assets, carrying amount, gross Intangible Assets, Gross (Excluding Goodwill) Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Intangible assets subject to amortization: Finite-Lived Intangible Assets [Line Items] Payment on convertible notes Repayments of Convertible Debt Employee Stock Employee Stock [Member] Additional cash payments upon milestone achievements minimum Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Product shelf life Products, Shelf Life Represents the period within which a product can be expired. Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Stockholders’ equity Equity, Attributable to Parent [Abstract] Gross unrealized losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Schedule of reconciliation of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Acquisition of Adamas, net of cash acquired Payments to Acquire Business Two, Net of Cash Acquired Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Contract liabilities Contract with Customer, Liability Carrying Value Convertible Notes Payable, Noncurrent Deferred tax assets, tax deferred expense Deferred Tax Assets, Tax Deferred Expense Schedule of computation of basic and diluted net earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Amortized cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss, Current Vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Executive Category: Executive Category [Axis] 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] Other Commitments [Table] Other Commitments [Table] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Name Measure Name Accrued product returns Accrued Product Returns Represents the amount of accrued product returns. Total deferred tax asset, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Marketable securities Marketable Securities, Current Name Forgone Recovery, Individual Name Total Fair Value Reported Value Measurement [Member] Goodwill Goodwill Gross increases related to prior year tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Schedule of property and equipment Property, Plant and Equipment [Table Text Block] Equity Components [Axis] Equity Components [Axis] Strike price of the warrant transactions (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Financial Instruments [Domain] Financial Instruments [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Disaggregation of Revenue [Abstract] Disaggregation of Revenue [Abstract] Measurement Basis [Axis] Measurement Basis [Axis] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Underlying Securities Award Underlying Securities Amount Entity Small Business Entity Small Business Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Four Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Local Phone Number Local Phone Number Accounts receivable Increase (Decrease) in Accounts Receivable Fair Value Measurement [Domain] Fair Value Measurement [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Selling, general and administrative Selling, General and Administrative Expenses [Member] Percentage of Accounts Receivable, net Accounts Receivable [Member] Milestone payments Milestone payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Measurement Frequency [Axis] Measurement Frequency [Axis] Operating lease liabilities, long term Operating Lease, Liability, Noncurrent Schedule of contractual maturities of the unrestricted available for sale marketable securities held Investments Classified by Contractual Maturity Date [Table Text Block] RSUs Restricted Stock Units (RSUs) [Member] Restricted stock and restricted stock unit activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Operating leases Leases, Operating [Abstract] Cash received from sale of subsidiary Proceeds from Divestiture of Businesses and Interests in Affiliates Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Income Statement Location [Axis] Income Statement Location [Axis] Adamas Pharmaceuticals Adamas Pharmaceuticals [Member] Adamas Pharmaceuticals Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Unamortized debt discount and deferred financing costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net 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 Repayment of acquired Adamas loan Repayments of Assumed Debt Schedule of maturities of operating lease liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Accounts payable and accrued liabilities Lease Liabilities, Current [Abstract] Lease Liabilities, Current Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Schedule of balance sheet information related to leases Lease Balance Sheet Disclosure [Table Text Block] Tabular disclosure of balance sheet information related to leases. Cost of Goods Sold Cost of Goods and Service [Policy Text Block] Other noncurrent assets Other Assets, Noncurrent [Abstract] Milestone 2024 Milestone 2024 [Member] Milestone 2024 Customer B Customer B [Member] Represents Customer B. Schedule of accounts payable and accrued liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] 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] Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Interest expense Interest expense Interest Expense, Debt Aggregate Available Trading Arrangement, Securities Aggregate Available Amount APOKYN APOKYN [Member] APOKYN Schedule of lease costs and supplemental cash flow information Lease, Cost [Table Text Block] Inventories Increase (Decrease) in Inventories Research and development Research and Development Expense [Member] Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] 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 Common stock equivalents excluded in the calculation of diluted income per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Award Type [Axis] Award Type [Axis] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Plan Name [Domain] Plan Name [Domain] 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] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag 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 Property and equipment, gross Property, Plant and Equipment, Gross Distribution from Navitor Distributions From Collaborative Arrangement, Investment Distributions From Collaborative Arrangement, Investment Lease assets and tenant receivable obtained for new operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Outstanding at the end of the period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 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. Trading Arrangement: Trading Arrangement [Axis] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Use of Estimates Use of Estimates, Policy [Policy Text Block] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Schedule of summary of the income tax expense (benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] After-tax interest expense for 2023 Notes Interest on Convertible Debt, Net of Tax Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number 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 Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Operating lease liabilities, current portion Operating Lease, Liability, Current Gross decreases related to prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Auditor Firm ID Auditor Firm ID Marketable securities Debt Securities, Current [Abstract] Sales and maturities of marketable securities Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Amortization of intangible assets Amortization of Intangible Assets Entity Shell Company Entity Shell Company 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] 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 Property and equipment Property, Plant and Equipment [Line Items] Carrying Amount, Net Finite-Lived Intangible Assets, Net Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Restatement Determination Date Restatement Determination Date Accrued compensation and stock based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Gross increases related to current year tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] 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 Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Accrued product rebates Accrued Rebates Represents the amount of accrued rebates. 2025 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 Impairment due to credit losses Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not Previously Recorded Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Total Operating Lease, Cost Impairment of Long-Lived Assets and Impairment of Indefinite-Lived Intangible Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Employees, Consultants and Advisors Employees Consultants And Advisors [Member] This member represents information pertaining to employees, consultants and advisors 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. Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period 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] Security Exchange Name Security Exchange Name Research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Long-term debt Total carrying value Long-Term Debt Total assets at fair value Assets, Fair Value Disclosure Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Selling, general and administrative Selling, General and Administrative Expense Accumulated other comprehensive (loss) earnings, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax USWM Enterprises MDD US Enterprises LLC (Formerly USWM Enterprises) [Member] MDD US Enterprises LLC (Formerly USWM Enterprises) Stock Option Stock options, RSUs, PSUs Employee Stock Option [Member] 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 Total costs and expenses Costs and Expenses Maximum Maximum [Member] Comprehensive earnings Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Type Document Type Interest expense Total other income (expense) Other Nonoperating Expense Market-Based Units Market Based Units [Member] Market Based Units Uncertain income tax position Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Tabular List, Table Tabular List [Table Text Block] Accrued manufacturing expenses Accrued Manufacturing Expenses, Current Accrued Manufacturing Expenses, Current U.S. Federal Domestic Tax Authority [Member] Aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Type of Adoption [Domain] Accounting Standards Update [Domain] Entity Address, Address Line One Entity Address, Address Line One Long term marketable securities Marketable Securities, Noncurrent Inventories Inventory, Policy [Policy Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Costs of goods sold Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] 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 Share-based Payments Share-Based Payment Arrangement [Text Block] Federal Current Federal Tax Expense (Benefit) Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Other noncash adjustments, net Other Noncash Income (Expense) Other income from Navitor (see Note 4) Equity method investment, realized gain (loss) on disposal Equity Method Investment, Realized Gain (Loss) on Disposal Purchases of marketable securities Payments to Acquire Debt Securities, Available-for-Sale Weighted Average Exercise Price (per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Lease liabilities, long-term Lease Liabilities, Noncurrent [Abstract] Lease Liabilities, Noncurrent Contingent consideration arrangements, value (in dollars per share) Business Combination, Contingent Consideration Arrangements, Value, Price Per Share Business Combination, Contingent Consideration Arrangements, Value, Price Per Share Business Acquisition [Axis] Business Acquisition [Axis] 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 NOL carryforwards Operating Loss Carryforwards Customer Concentration Risk Customer Concentration Risk [Member] State Deferred State and Local Income Tax Expense (Benefit) Other current liabilities Other Liabilities, Current Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Cash Cash [Member] Income Statement [Abstract] Income Statement [Abstract] Long-term Purchase Commitment [Table] Long-Term Purchase Commitment [Table] Issuance of common stock in connection with the Company’s equity award plans (in shares) Stock Issued During Period, Shares, New Issues Costs and expenses Costs and Expenses [Abstract] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Title of 12(b) Security Title of 12(b) Security Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Accrued product returns and rebates Increase (Decrease) in Accrued Product Returns and Rebates Amount of increase (decrease) in product returns and rebates. Accrued product returns and rebates Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Acquired in-process research and development Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] 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 All Major Customers All Major Customers [Member] All Major Customers Schedule of financial liabilities that are not carried at fair value Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income tax expense computed at U.S. federal statutory income tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Marketable securities - restricted (SERP) Assets for Plan Benefits, Defined Benefit Plan Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Entity Tax Identification Number Entity Tax Identification Number Deferred Financing Costs Debt Instrument, Interest Rate, Stated Percentage [Abstract] Other Commitments [Domain] Other Commitments [Domain] Inventories, net Total inventories Inventory, Net Statistical Measurement [Axis] Statistical Measurement [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Entity Interactive Data Current Entity Interactive Data Current Nonrecourse Royalty Liabilities Nonrecourse Royalty Liabilities [Member] Nonrecourse Royalty Liabilities Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Convertible Senior Notes Due 2023 Long-Term Debt [Text Block] Advertising Expense Advertising Cost [Policy Text Block] Total Shareholder Return Amount Total Shareholder Return Amount Net product sales Product [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Noncash investing and financing activity: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Share-Based Compensation Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Schedule of other (expenses) income Schedule of Other Nonoperating Income (Expense) [Table Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Measure: Measure [Axis] Threshold for development costs payments Collaborative Arrangement, Threshold For Development Costs Payments Collaborative Arrangement, Threshold For Development Costs Payments Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Principal amount of debt 2023 Notes Debt Instrument, Face Amount Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Current assets Assets, Current [Abstract] Goodwill and Goodwill Impairment Assessment Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Leases [Abstract] Leases [Abstract] Other Commitments [Line Items] Other Commitments [Line Items] Advertising costs Advertising Expense Deferred tax assets: Components of Deferred Tax Assets [Abstract] Schedule of significant components of deferred tax assets (liabilities) Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Entity Address, State or Province Entity Address, State or Province Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] 2024 Finite-Lived Intangible Asset, Expected Amortization, Year One Cash paid for operating leases Operating Lease, Payments Unrealized gain (loss) on marketable securities, net of tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] PEO PEO [Member] Capitalized patent defense costs Patent Defense Costs [Member] Represents information concerning the capitalized patent defense costs related to the Watson litigation. Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Auditor Location Auditor Location Accrued R&D expenses Accrued Research and Development Expenses, Current Represents the amount of clinical trial and clinical supply costs accrued. 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Summary of valuation allowance Summary of Valuation Allowance [Table Text Block] Other Commitment Other Commitment Long term marketable securities Debt Securities, Noncurrent [Abstract] Disaggregated Revenues Revenue from Contract with Customer [Text Block] Company Selected Measure Amount Company Selected Measure Amount Navitor Pharmaceuticals, Inc. Navitor Pharmaceuticals, Inc. [Member] Navitor Pharmaceuticals, Inc. Additional Paid-in Capital Additional Paid-in Capital [Member] Document Annual Report Document Annual Report Effect of dilutive securities: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] GOCOVRI GOCOVRI [Member] GOCOVRI Contingent consideration arrangements, excess acquisition date fair value, term Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Excess Acquisition Date Fair Value, Term Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Excess Acquisition Date Fair Value, Term Balance Sheet Location [Axis] Balance Sheet Location [Axis] Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Cover page. Cover [Abstract] Milestone 2024 and Milestone 2025 Milestone 2024 and Milestone 2025 [Member] Milestone 2024 and Milestone 2025 Qelbree Qelbree [Member] Qelbree Share-based compensation expense related to employee stock purchase plan and share-based awards APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Recurring Fair Value, Recurring [Member] Other liabilities Other Liabilities, Noncurrent 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 Non-NEOs Non-NEOs [Member] Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Construction-in-progress Construction in Progress [Member] Interest Expense Interest Expense, Policy [Policy Text Block] 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] Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Optional lease renewal term (in years) Lessee, Operating Lease, Renewal Term Equity Component [Domain] Equity Component [Domain] Adjustment to Compensation: Adjustment to Compensation [Axis] Investments Equity Securities, FV-NI, Cost Purchase price percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Work in process Inventory, Work in Process, Net of Reserves State State and Local Jurisdiction [Member] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Weighted average shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Entity Current Reporting Status Entity Current Reporting Status Concentration Risk Type [Domain] Concentration Risk Type [Domain] Operating earnings (loss) Operating Income (Loss) Other Deferred Tax Liabilities, Property, Plant and Equipment Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Contingent consideration liability related to acquisitions Business Combination, Contingent Consideration Arrangements, Acquisition Liability Business Combination, Contingent Consideration Arrangements, Acquisition Liability Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Revenues Revenues [Abstract] Total deferred tax liabilities Deferred Tax Liabilities, Gross Consolidated Entities [Domain] Consolidated Entities [Domain] Estimated Amortization Expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Concentration Risk [Table] Concentration Risk [Table] Vested and expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Intangibles Deferred Tax Liabilities, Intangible Assets SPN-830 Regulatory and Commercial Activities SPN-830 Regulatory And Commercial Activities [Member] SPN-830 Regulatory And Commercial Activities Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Navitor investment R&D expense (see Note 4) Research And Development Process Costs Research And Development Process Costs Noncash royalty revenue Revenue From Royalty Agreement Represents revenue from the sale of certain royalty and milestone rights.