Agreement termination notice period Variable Interest Entity, Agreement Termination Notice, Period Variable Interest Entity, Agreement Termination Notice, Period Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Customer [Domain] Customer [Domain] Convertible Debt Convertible Debt [Member] Vested (in shares) Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Leasehold improvements Leasehold Improvements [Member] Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Net earnings Net earnings Net Income (Loss) Attributable to Parent Consolidated Entities [Axis] Consolidated Entities [Axis] Entity Emerging Growth Company Entity Emerging Growth Company 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 Accrued compensation Employee-related Liabilities, Current Income Statement Location [Axis] Income Statement Location [Axis] Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Entity Address, Address Line One Entity Address, Address Line One Spend commitment amount, current period Purchase Commitment, Remaining Minimum Amount Committed, Due In Next Three Months Purchase Commitment, Remaining Minimum Amount Committed, Due In Next Three Months Conversion price, per share of common stock (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 Entity Filer Category Entity Filer Category Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Other assets Other Assets, Noncurrent Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Investment, Name [Axis] Investment, Name [Axis] Acquired IPR&D 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 Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Share-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Change in fair value recognized in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Goodwill Goodwill, Purchase Accounting Adjustments Document Fiscal Year Focus Document Fiscal Year Focus Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Amortization of intangible assets Amortization of Intangible Assets Fair value of intangible assets Estimated Fair Value Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Remaining Weighted- Average Life (Years) Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 3 years to 4 years Available For Sale Securities Debt Maturities Three Years Through Four Years Fair Value 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. Schedule of inventories Schedule of Inventory, Current [Table Text Block] 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] Financing lease liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finance Lease, Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Lease, Liability Financing lease asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financing Lease, Right Of Use Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financing Lease, Right Of Use Assets Business Combination and Asset Acquisition [Abstract] Granted (in 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Inventory, Current [Table] Inventory, Current [Table] Accounts receivable Increase (Decrease) in Accounts Receivable Total purchase price Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Inventories, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Business acquisition, pro forma information Business Acquisition, Pro Forma Information [Table Text Block] Property and equipment Property, Plant and Equipment [Line Items] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Other liabilities Other Noncurrent Liabilities [Table Text Block] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Entity Interactive Data Current Entity Interactive Data Current 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] 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 January 1, 2020 Balance at December 31, 2020 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Document Type Document Type Operating lease liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Operating Lease, Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Operating Lease, Liability Financing lease liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financing Lease, Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financing Lease, Liability Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Interest expense Interest Expense, Debt Summary of disaggregation of revenues by nature Disaggregation of Revenue [Table Text Block] 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] Inventories Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory Fair Value Measurement [Domain] Fair Value Measurement [Domain] Change in fair value of contingent consideration Unrealized Gain (Loss) on Derivatives Entity Current Reporting Status Entity Current Reporting Status Marketable securities - restricted (SERP) Assets for Plan Benefits, Defined Benefit Plan 1 year to 2 years Available For Sale Securities Debt Maturities After One Through Two Years Fair Value 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. 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. Product Candidates Product Candidates [Member] Product Candidates Lease liabilities, current Lease Liabilities, Current [Abstract] Lease Liabilities, Current Contingent consideration liability accrued in USWM Acquisition Estimated fair value of contingent consideration Business Combination, Consideration Transferred APOKYN APOKYN [Member] APOKYN 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 Assets: Assets, Fair Value Disclosure [Abstract] Finance lease asset Finance Lease, Right-of-Use Asset, after Accumulated Amortization Total assets at fair value Total assets at fair value Assets, Fair Value Disclosure Level 1 Fair Value, Inputs, Level 1 [Member] Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Intangible assets: Finite-Lived Intangible Assets [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Other accrued expenses Other Accrued Liabilities, Current Investments, Debt and Equity Securities [Abstract] Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] 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 Concentration of Credit Risk Concentration Risk [Line Items] Liabilities and stockholders’ equity Liabilities and Equity [Abstract] 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 measurement at Closing Date at June 9, 2020 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] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Sales-based contingent consideration liabilities 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 Other noncash adjustments, net Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Marketable securities Marketable Securities, Current 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 Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Selling, general and administrative Selling, General and Administrative Expense Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Other comprehensive earnings Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Gross unrealized gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax MDD US Enterprises LLC (Formerly USWM Enterprises) 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 liabilities Regulatory And Developmental Contingent Consideration Liability [Member] Regulatory And Developmental Contingent Consideration Liability Other noncurrent assets Other Assets, Noncurrent [Abstract] Trading Symbol Trading Symbol 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 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 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] Level 3 Fair Value, Inputs, Level 3 [Member] 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. Accrued professional fees Accrued Professional Fees, Current Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Lease liabilities, long term Lease Liabilities, Noncurrent [Abstract] Lease Liabilities, Noncurrent Schedule of interest expense Interest Income and Interest Expense Disclosure [Table Text Block] Common stock, $0.001 par value; 130,000,000 shares authorized; 53,144,759 and 52,868,482 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively Common Stock, Value, Issued Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Total other income (expense) Nonoperating Income (Expense) 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] Total PSUs Performance Shares [Member] Accrued product costs Accrued Product Costs, Current Accrued Product Costs, Current Leases Lessee, Operating Leases [Text Block] Accumulated other comprehensive earnings, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax 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. Interest Expense Other Nonoperating Income and Expense [Text Block] SPN-830 FDA Acceptance Milestone SPN-830 FDA Acceptance Milestone [Member] SPN-830 FDA Acceptance Milestone Product Concentration Risk Product Concentration Risk [Member] MYOBLOC MYOBLOC [Member] MYOBLOC Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Document Period End Date Document Period End Date Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Stock options, RSU and SAR (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Deferred income tax liabilities, net 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 Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Pro forma net earnings Business Acquisition, Pro Forma Net Income (Loss) Entity Registrant Name Entity Registrant Name Raw materials Inventory, Work in Process and Raw Materials, Net of Reserves Warrants issued (in shares) Class of Warrant or Right, Outstanding Work in process Inventory, Work in Process, Net of Reserves 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 Financial Instrument [Axis] Financial Instrument [Axis] Total Accrued Liabilities, Current Selling, general and administrative Selling, General and Administrative Expenses [Member] Total revenues Revenue from Contract with Customer, Excluding Assessed Tax Finished goods Inventory, Finished Goods, Net of Reserves Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Stock options, RSUs, PSUs Share-based Payment Arrangement, Option [Member] Deferred income tax liabilities, net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Income Tax Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Income Tax Liabilities 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 Convertible Notes Convertible Notes Payable [Member] Common Stock Common Stock [Member] Other income (expense) Other Nonoperating Income (Expense) [Abstract] Operating earnings Operating Income (Loss) Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Operating lease asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Operating Lease, Right Of Use Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Operating Lease, Right Of Use Assets Operating lease liabilities, current portion Operating Lease, Liability, Current Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] 2 years to 3 years Available For Sale Securities Debt Maturities Two Years Through Three Years Fair Value 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. Share-based compensation expense Share-based Payment Arrangement, Noncash Expense Investment in Navitor Pharmaceuticals, Inc. Payments to Acquire Other Investments 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] As Initially Reported Previously Reported [Member] Total lease assets Lease, Right-Of-Use Asset Lease, Right-Of-Use Asset Capitalized patent defense costs Patent Defense Costs [Member] Represents information concerning the capitalized patent defense costs related to the Watson litigation. Realized gains from sales of marketable securities Marketable Securities, Realized Gain (Loss), Excluding Other-than-temporary Impairment Loss Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Interest and other income, net Other Nonoperating Income (Expense) Deferred legal fees and fixed assets included in accounts payable and accrued expenses Non Cash Capitalized Cost Of Intangible Assets Represents the non-cash expenses related to intangible assets that were capitalized and shown within accrued expenses. Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment 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] Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Total liabilities Liabilities Legal Entity [Axis] Legal Entity [Axis] 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] Total stockholders’ equity Balance Balance Stockholders' Equity Attributable to Parent Common stock shares issued (in shares) Common Stock, Shares, Issued Measurement period adjustment Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Schedule of balance sheet information related to leases Lessee, Operating and Finance Lease, Balance Sheet Disclosure [Table Text Block] Lessee, Operating and Finance Lease, Balance Sheet Disclosure Prepaid expenses and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Commitment period Long-term Purchase Commitment, Period Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Total identifiable net assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets (Liabilities), Net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets (Liabilities), Net Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Noncash investing and financing activities Noncash Investing and Financing Items [Abstract] Operating lease liabilities, long term Operating lease liabilities, long term Operating Lease, Liability, Noncurrent Measurement Frequency [Domain] Measurement Frequency [Domain] Principal amount of debt 2023 Notes Debt Instrument, Face Amount Trokendi XR Trokendi Xr [Member] Represents information pertaining to Trokendi XR patent litigation. Interest expense Total Interest Expense Total purchase price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net City Area Code City Area Code Retained earnings Retained Earnings (Accumulated Deficit) 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] Business Acquisition [Line Items] Business Acquisition [Line Items] Debt Conversion Description [Axis] Debt Conversion Description [Axis] Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Concentration Risk [Table] Concentration Risk [Table] 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 Acquired IPR&D Indefinite-lived Intangible Assets (Excluding Goodwill) 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 (Benefit) Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total current assets Assets, Current Accounts Receivable Accounts Receivable [Member] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] 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 Deferred legal fees Payments For Deferred Legal Fees Payments For Deferred Legal Fees Entity File Number Entity File Number Three Major Customers Three Major Customers [Member] Three Major Customers Fair value of financial instruments Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 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 Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Small Business Entity Small Business XADAGO XADAGO [Member] XADAGO Measurement Period Adjustments 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. Lease assets obtained for new 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] Long term marketable securities Marketable Securities, Noncurrent Statement [Line Items] Statement Statement [Line Items] Property and equipment, net Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization 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 Weighted- Average Exercise Price (per share) 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 Liabilities Liabilities [Abstract] 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 Total fair value of assets acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets Estimated fair value of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High Fair value (Level 2) Convertible Debt, Fair Value Disclosures Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Address, State or Province Entity Address, State or Province Finance lease liability, current portion Finance Lease, Liability, Current Purchases of marketable securities Payments to Acquire Marketable Securities Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Level 2 Fair Value, Inputs, Level 2 [Member] Number of shares per warrant entitled to holder (in shares) Class of Warrant or Right, Number of Shares in Which Holder Can be Entitled per Warrants at Strike Price Represents the information pertaining to the shares per warrant entitled to holders at strike price. Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Schedule of intangible assets and goodwill Schedule of Intangible Assets and Goodwill [Table Text Block] Entity [Domain] Entity [Domain] 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. Amortized cost Debt Securities, Available-for-sale, Amortized Cost Estimated Useful Lives as of Closing Date (in years) Finite-Lived Intangible Asset, Useful Life Customer [Axis] Customer [Axis] Use of Estimates Use of Estimates, Policy [Policy Text Block] Schedule of computation of basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Entity Shell Company Entity Shell Company 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] Local Phone Number Local Phone Number Other comprehensive (loss) income 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] Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Total assets Assets Investment, Name [Domain] Investment, Name [Domain] 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 Net earnings Net Income (Loss) Available to Common Stockholders, Basic Research and development Research and Development Expense Product and Service [Domain] Product and Service [Domain] Schedule of accrued product returns and rebates Schedule of Accrued Product Returns and Rebates [Table Text Block] Tabular disclosure of the accrued product returns and rebates. 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Other liabilities Total Other Liabilities, Noncurrent Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Notes payable Debt Instrument [Line Items] Debt Instrument [Line Items] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Pro forma total revenues Business Acquisition, Pro Forma Revenue Property and equipment, gross Property, Plant and Equipment, Gross Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Document Quarterly Report Document Quarterly Report 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 Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Costs and expenses Costs and Expenses [Abstract] Liabilities: Liabilities, Fair Value Disclosure [Abstract] Total Share-based Payment Arrangement, Expense Estimated fair value of contingent consideration Business Combination, Consideration Transferred, Liabilities Incurred Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 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] Document Fiscal Period Focus Document Fiscal Period Focus Total lease liabilities Lease, Liability Lease, Liability Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Sales and maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities Greater than 4 years Available For Sale Securities Debt Maturities, Thereafter, Fair Value Available For Sale Securities Debt Maturities, Thereafter, Fair Value Total fair value of liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities 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 period 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 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] Entity Central Index Key Entity Central Index Key Security Exchange Name Security Exchange Name Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Interest expense on nonrecourse liability related to sale of future royalties Interest Expense, Other Schedule of accounts payable and accrued liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Diluted (in shares) Weighted average shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Conversion of debt to equity Debt Conversion, Original Debt, Amount Recurring Fair Value, Recurring [Member] Income Tax Expense 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] Current Fiscal Year End Date Current Fiscal Year End Date Summary of stock options and SAR activities 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] Measurement Basis [Axis] Measurement Basis [Axis] 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. Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Royalty revenues Royalty [Member] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Navitor Pharmaceuticals, Inc. Navitor Pharmaceuticals, Inc. [Member] Navitor Pharmaceuticals, Inc. Disaggregation of Revenue [Abstract] Disaggregation of Revenue [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Unrealized (loss) gain on marketable securities, net of tax Unrealized loss on marketable securities, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent 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 SPN-830 Future Sales Performance SPN-830 Future Sales Performance [Member] SPN-830 Future Sales Performance Consolidation Consolidation, Policy [Policy Text Block] Total current liabilities Liabilities, Current Cash consideration Payments to Acquire Businesses, Gross Qelbree Qelbree [Member] Qelbree Money market funds Money Market Funds [Member] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Entity Address, Postal Zip Code Entity Address, Postal Zip Code Unamortized debt discount and deferred financing costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Title of 12(b) Security Title of 12(b) Security Statement [Table] Statement [Table] Advertising costs Advertising Expense Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Financing lease asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Lease, Right-of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Lease, Right-of-Use Asset Statistical Measurement [Axis] Statistical Measurement [Axis] Cover page. Cover [Abstract] Finance lease liability, long term Finance Lease, Liability, Noncurrent Goodwill Goodwill Goodwill Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Business Organization 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] Finance lease assets (1) 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] Computer equipment Computer Equipment [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] SPN-830 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] Inventory [Line Items] Inventory [Line Items] Non-cash royalty revenue Revenue From Royalty Agreement Represents revenue from the sale of certain royalty and milestone rights. 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 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 Property, Plant and Equipment, Net