3.26.1 html 232 276 1 false 65 0 false 9 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.unither.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - Consolidated Balance Sheets Sheet http://www.unither.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.unither.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - Consolidated Statements of Operations Sheet http://www.unither.com/role/ConsolidatedStatementsofOperations Consolidated Statements of Operations Statements 4 false false R5.htm 9952154 - Statement - Consolidated Statements of Comprehensive Income Sheet http://www.unither.com/role/ConsolidatedStatementsofComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 5 false false R6.htm 9952155 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) Sheet http://www.unither.com/role/ConsolidatedStatementsofComprehensiveIncomeParenthetical Consolidated Statements of Comprehensive Income (Parenthetical) Statements 6 false false R7.htm 9952156 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://www.unither.com/role/ConsolidatedStatementsofStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 7 false false R8.htm 9952157 - Statement - Consolidated Statements of Cash Flows Sheet http://www.unither.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 9952158 - Disclosure - Organization and Business Description Sheet http://www.unither.com/role/OrganizationandBusinessDescription Organization and Business Description Notes 9 false false R10.htm 9952159 - Disclosure - Basis of Presentation Sheet http://www.unither.com/role/BasisofPresentation Basis of Presentation Notes 10 false false R11.htm 9952160 - Disclosure - Investments Sheet http://www.unither.com/role/Investments Investments Notes 11 false false R12.htm 9952161 - Disclosure - Fair Value Measurements Sheet http://www.unither.com/role/FairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 9952162 - Disclosure - Inventories Sheet http://www.unither.com/role/Inventories Inventories Notes 13 false false R14.htm 9952163 - Disclosure - Property, Plant, and Equipment Sheet http://www.unither.com/role/PropertyPlantandEquipment Property, Plant, and Equipment Notes 14 false false R15.htm 9952164 - Disclosure - Debt Sheet http://www.unither.com/role/Debt Debt Notes 15 false false R16.htm 9952165 - Disclosure - Share-Based Compensation Sheet http://www.unither.com/role/ShareBasedCompensation Share-Based Compensation Notes 16 false false R17.htm 9952166 - Disclosure - Stockholders??? Equity Sheet http://www.unither.com/role/StockholdersEquity Stockholders??? Equity Notes 17 false false R18.htm 9952167 - Disclosure - Income Taxes Sheet http://www.unither.com/role/IncomeTaxes Income Taxes Notes 18 false false R19.htm 9952168 - Disclosure - Segment Information Sheet http://www.unither.com/role/SegmentInformation Segment Information Notes 19 false false R20.htm 9952169 - Disclosure - Litigation Sheet http://www.unither.com/role/Litigation Litigation Notes 20 false false R21.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 21 false false R22.htm 9955511 - Disclosure - Basis of Presentation (Policies) Sheet http://www.unither.com/role/BasisofPresentationPolicies Basis of Presentation (Policies) Policies 22 false false R23.htm 9955512 - Disclosure - Investments (Tables) Sheet http://www.unither.com/role/InvestmentsTables Investments (Tables) Tables http://www.unither.com/role/Investments 23 false false R24.htm 9955513 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.unither.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.unither.com/role/FairValueMeasurements 24 false false R25.htm 9955514 - Disclosure - Inventories (Tables) Sheet http://www.unither.com/role/InventoriesTables Inventories (Tables) Tables http://www.unither.com/role/Inventories 25 false false R26.htm 9955515 - Disclosure - Property, Plant, and Equipment (Tables) Sheet http://www.unither.com/role/PropertyPlantandEquipmentTables Property, Plant, and Equipment (Tables) Tables http://www.unither.com/role/PropertyPlantandEquipment 26 false false R27.htm 9955516 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.unither.com/role/ShareBasedCompensationTables Share-Based Compensation (Tables) Tables http://www.unither.com/role/ShareBasedCompensation 27 false false R28.htm 9955517 - Disclosure - Stockholders??? Equity (Tables) Sheet http://www.unither.com/role/StockholdersEquityTables Stockholders??? Equity (Tables) Tables http://www.unither.com/role/StockholdersEquity 28 false false R29.htm 9955518 - Disclosure - Segment Information (Tables) Sheet http://www.unither.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.unither.com/role/SegmentInformation 29 false false R30.htm 9955519 - Disclosure - Investments - Available-for-Sale Debt Securities (Details) Sheet http://www.unither.com/role/InvestmentsAvailableforSaleDebtSecuritiesDetails Investments - Available-for-Sale Debt Securities (Details) Details 30 false false R31.htm 9955520 - Disclosure - Investments - Current and Non-current of Available-for-Sale Debt Securities (Details) Sheet http://www.unither.com/role/InvestmentsCurrentandNoncurrentofAvailableforSaleDebtSecuritiesDetails Investments - Current and Non-current of Available-for-Sale Debt Securities (Details) Details 31 false false R32.htm 9955521 - Disclosure - Investments - Available-for-Sale Debt Securities in Unrealized Loss Position (Details) Sheet http://www.unither.com/role/InvestmentsAvailableforSaleDebtSecuritiesinUnrealizedLossPositionDetails Investments - Available-for-Sale Debt Securities in Unrealized Loss Position (Details) Details 32 false false R33.htm 9955522 - Disclosure - Investments - Narrative (Details) Sheet http://www.unither.com/role/InvestmentsNarrativeDetails Investments - Narrative (Details) Details 33 false false R34.htm 9955523 - Disclosure - Investments - Contractual Maturities of Available-for-Sale Marketable Investments (Details) Sheet http://www.unither.com/role/InvestmentsContractualMaturitiesofAvailableforSaleMarketableInvestmentsDetails Investments - Contractual Maturities of Available-for-Sale Marketable Investments (Details) Details 34 false false R35.htm 9955524 - Disclosure - Investments - Investments in Equity Securities with Readily Determinable Fair Values (Details) Sheet http://www.unither.com/role/InvestmentsInvestmentsinEquitySecuritieswithReadilyDeterminableFairValuesDetails Investments - Investments in Equity Securities with Readily Determinable Fair Values (Details) Details 35 false false R36.htm 9955525 - Disclosure - Investments - Investments in Privately-Held Companies (Details) Sheet http://www.unither.com/role/InvestmentsInvestmentsinPrivatelyHeldCompaniesDetails Investments - Investments in Privately-Held Companies (Details) Details 36 false false R37.htm 9955526 - Disclosure - Fair Value Measurements (Details) Sheet http://www.unither.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Details http://www.unither.com/role/FairValueMeasurementsTables 37 false false R38.htm 9955527 - Disclosure - Inventories (Details) Sheet http://www.unither.com/role/InventoriesDetails Inventories (Details) Details http://www.unither.com/role/InventoriesTables 38 false false R39.htm 9955528 - Disclosure - Property, Plant, and Equipment - Schedule of Property, Plant and Equipment (Details) Sheet http://www.unither.com/role/PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetails Property, Plant, and Equipment - Schedule of Property, Plant and Equipment (Details) Details 39 false false R40.htm 9955529 - Disclosure - Property, Plant, and Equipment - Narrative (Details) Sheet http://www.unither.com/role/PropertyPlantandEquipmentNarrativeDetails Property, Plant, and Equipment - Narrative (Details) Details 40 false false R41.htm 9955530 - Disclosure - Debt (Details) Sheet http://www.unither.com/role/DebtDetails Debt (Details) Details http://www.unither.com/role/Debt 41 false false R42.htm 9955531 - Disclosure - Share-Based Compensation - General Narrative (Details) Sheet http://www.unither.com/role/ShareBasedCompensationGeneralNarrativeDetails Share-Based Compensation - General Narrative (Details) Details 42 false false R43.htm 9955532 - Disclosure - Share-Based Compensation - Allocation of Compensation Expense (Benefit) by Plan (Details) Sheet http://www.unither.com/role/ShareBasedCompensationAllocationofCompensationExpenseBenefitbyPlanDetails Share-Based Compensation - Allocation of Compensation Expense (Benefit) by Plan (Details) Details 43 false false R44.htm 9955533 - Disclosure - Share-Based Compensation - Stock Options Narrative (Details) Sheet http://www.unither.com/role/ShareBasedCompensationStockOptionsNarrativeDetails Share-Based Compensation - Stock Options Narrative (Details) Details 44 false false R45.htm 9955534 - Disclosure - Share-Based Compensation - Assumptions For Stock Options (Details) Sheet http://www.unither.com/role/ShareBasedCompensationAssumptionsForStockOptionsDetails Share-Based Compensation - Assumptions For Stock Options (Details) Details 45 false false R46.htm 9955535 - Disclosure - Share-Based Compensation - Status of Stock Options (Details) Sheet http://www.unither.com/role/ShareBasedCompensationStatusofStockOptionsDetails Share-Based Compensation - Status of Stock Options (Details) Details 46 false false R47.htm 9955536 - Disclosure - Share-Based Compensation - Share-Based Compensation Expense (Details) Sheet http://www.unither.com/role/ShareBasedCompensationShareBasedCompensationExpenseDetails Share-Based Compensation - Share-Based Compensation Expense (Details) Details 47 false false R48.htm 9955537 - Disclosure - Share-Based Compensation - Stock Options Exercise Data (Details) Sheet http://www.unither.com/role/ShareBasedCompensationStockOptionsExerciseDataDetails Share-Based Compensation - Stock Options Exercise Data (Details) Details 48 false false R49.htm 9955538 - Disclosure - Share-Based Compensation - Restricted Stock Units Narrative (Details) Sheet http://www.unither.com/role/ShareBasedCompensationRestrictedStockUnitsNarrativeDetails Share-Based Compensation - Restricted Stock Units Narrative (Details) Details 49 false false R50.htm 9955539 - Disclosure - Share-Based Compensation - Restricted Stock Units Status (Details) Sheet http://www.unither.com/role/ShareBasedCompensationRestrictedStockUnitsStatusDetails Share-Based Compensation - Restricted Stock Units Status (Details) Details 50 false false R51.htm 9955540 - Disclosure - Share-Based Compensation - Employee Stock Purchase Plan (Details) Sheet http://www.unither.com/role/ShareBasedCompensationEmployeeStockPurchasePlanDetails Share-Based Compensation - Employee Stock Purchase Plan (Details) Details 51 false false R52.htm 9955541 - Disclosure - Stockholders??? Equity - Schedule of Components of Basic and Diluted Earnings (Loss) Per Common Share (Details) Sheet http://www.unither.com/role/StockholdersEquityScheduleofComponentsofBasicandDilutedEarningsLossPerCommonShareDetails Stockholders??? Equity - Schedule of Components of Basic and Diluted Earnings (Loss) Per Common Share (Details) Details 52 false false R53.htm 9955542 - Disclosure - Stockholders??? Equity - Narrative (Details) Sheet http://www.unither.com/role/StockholdersEquityNarrativeDetails Stockholders??? Equity - Narrative (Details) Details 53 false false R54.htm 9955543 - Disclosure - Income Taxes (Details) Sheet http://www.unither.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.unither.com/role/IncomeTaxes 54 false false R55.htm 9955544 - Disclosure - Segment Information - General (Details) Sheet http://www.unither.com/role/SegmentInformationGeneralDetails Segment Information - General (Details) Details 55 false false R56.htm 9955545 - Disclosure - Segment Information - Geographic Information (Details) Sheet http://www.unither.com/role/SegmentInformationGeographicInformationDetails Segment Information - Geographic Information (Details) Details 56 false false R57.htm 9955546 - Disclosure - Segment Information - Concentration Risk (Details) Sheet http://www.unither.com/role/SegmentInformationConcentrationRiskDetails Segment Information - Concentration Risk (Details) Details 57 false false R58.htm 9955547 - Disclosure - Litigation (Details) Sheet http://www.unither.com/role/LitigationDetails Litigation (Details) Details http://www.unither.com/role/Litigation 58 false false All Reports Book All Reports uthr-20260331.htm uthr-20260331.xsd uthr-20260331_cal.xml uthr-20260331_def.xml uthr-20260331_lab.xml uthr-20260331_pre.xml http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true