3.26.1 html 254 343 1 true 91 0 false 6 false false R1.htm 0000001 - Document - Cover Sheet http://www.wearelegence.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - Condensed Consolidated Balance Sheets Sheet http://www.wearelegence.com/role/CondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 9952152 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://www.wearelegence.com/role/CondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - Condensed Consolidated Statements of Operations Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofOperations Condensed Consolidated Statements of Operations Statements 4 false false R5.htm 9952154 - Statement - Condensed Consolidated Statements of Operations (Parenthetical) Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofOperationsParenthetical Condensed Consolidated Statements of Operations (Parenthetical) Statements 5 false false R6.htm 9952155 - Statement - Condensed Consolidated Statements of Comprehensive Income (Loss) Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeLoss Condensed Consolidated Statements of Comprehensive Income (Loss) Statements 6 false false R7.htm 9952156 - Statement - Condensed Consolidated Statements of Changes in Equity Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofChangesinEquity Condensed Consolidated Statements of Changes in Equity Statements 7 false false R8.htm 9952157 - Statement - Condensed Consolidated Statements of Cash Flows Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofCashFlows Condensed Consolidated Statements of Cash Flows Statements 8 false false R9.htm 9952158 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) Sheet http://www.wearelegence.com/role/CondensedConsolidatedStatementsofCashFlowsParenthetical Condensed Consolidated Statements of Cash Flows (Parenthetical) Statements 9 false false R10.htm 9952159 - Disclosure - Nature of Operations and Basis of Presentation Sheet http://www.wearelegence.com/role/NatureofOperationsandBasisofPresentation Nature of Operations and Basis of Presentation Notes 10 false false R11.htm 9952160 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.wearelegence.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 11 false false R12.htm 9952161 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts Sheet http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccounts Revenue Recognition and Related Balance Sheet Accounts Notes 12 false false R13.htm 9952162 - Disclosure - Acquisitions Sheet http://www.wearelegence.com/role/Acquisitions Acquisitions Notes 13 false false R14.htm 9952163 - Disclosure - Goodwill and Intangible Assets Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssets Goodwill and Intangible Assets Notes 14 false false R15.htm 9952164 - Disclosure - Variable Interest Entities and Equity Method Investments Sheet http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestments Variable Interest Entities and Equity Method Investments Notes 15 false false R16.htm 9952165 - Disclosure - Debt Sheet http://www.wearelegence.com/role/Debt Debt Notes 16 false false R17.htm 9952166 - Disclosure - Fair Value Measurements Sheet http://www.wearelegence.com/role/FairValueMeasurements Fair Value Measurements Notes 17 false false R18.htm 9952167 - Disclosure - Derivatives Sheet http://www.wearelegence.com/role/Derivatives Derivatives Notes 18 false false R19.htm 9952168 - Disclosure - Stockholders' Equity Sheet http://www.wearelegence.com/role/StockholdersEquity Stockholders' Equity Notes 19 false false R20.htm 9952169 - Disclosure - Stock-Based Compensation and Long-term Incentive Awards Sheet http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwards Stock-Based Compensation and Long-term Incentive Awards Notes 20 false false R21.htm 9952170 - Disclosure - Noncontrolling Interests Sheet http://www.wearelegence.com/role/NoncontrollingInterests Noncontrolling Interests Notes 21 false false R22.htm 9952171 - Disclosure - Earnings Per Share Sheet http://www.wearelegence.com/role/EarningsPerShare Earnings Per Share Notes 22 false false R23.htm 9952172 - Disclosure - Tax Receivable Agreement Sheet http://www.wearelegence.com/role/TaxReceivableAgreement Tax Receivable Agreement Notes 23 false false R24.htm 9952173 - Disclosure - Income Taxes Sheet http://www.wearelegence.com/role/IncomeTaxes Income Taxes Notes 24 false false R25.htm 9952174 - Disclosure - Segment Information Sheet http://www.wearelegence.com/role/SegmentInformation Segment Information Notes 25 false false R26.htm 9952175 - Disclosure - Related Party Transactions Sheet http://www.wearelegence.com/role/RelatedPartyTransactions Related Party Transactions Notes 26 false false R27.htm 9952176 - Disclosure - Commitments and Contingencies Sheet http://www.wearelegence.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 27 false false R28.htm 9952177 - Disclosure - Other Financial Information Sheet http://www.wearelegence.com/role/OtherFinancialInformation Other Financial Information Notes 28 false false R29.htm 9952178 - Disclosure - Subsequent Events Sheet http://www.wearelegence.com/role/SubsequentEvents Subsequent Events Notes 29 false false R30.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 30 false false R31.htm 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.wearelegence.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.wearelegence.com/role/SummaryofSignificantAccountingPolicies 31 false false R32.htm 9955512 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts (Tables) Sheet http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccountsTables Revenue Recognition and Related Balance Sheet Accounts (Tables) Tables http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccounts 32 false false R33.htm 9955513 - Disclosure - Acquisitions (Tables) Sheet http://www.wearelegence.com/role/AcquisitionsTables Acquisitions (Tables) Tables http://www.wearelegence.com/role/Acquisitions 33 false false R34.htm 9955514 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.wearelegence.com/role/GoodwillandIntangibleAssets 34 false false R35.htm 9955515 - Disclosure - Variable Interest Entities and Equity Method Investments (Tables) Sheet http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestmentsTables Variable Interest Entities and Equity Method Investments (Tables) Tables http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestments 35 false false R36.htm 9955516 - Disclosure - Debt (Tables) Sheet http://www.wearelegence.com/role/DebtTables Debt (Tables) Tables http://www.wearelegence.com/role/Debt 36 false false R37.htm 9955517 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.wearelegence.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.wearelegence.com/role/FairValueMeasurements 37 false false R38.htm 9955518 - Disclosure - Derivatives (Tables) Sheet http://www.wearelegence.com/role/DerivativesTables Derivatives (Tables) Tables http://www.wearelegence.com/role/Derivatives 38 false false R39.htm 9955519 - Disclosure - Stock-Based Compensation and Long-term Incentive Awards (Tables) Sheet http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwardsTables Stock-Based Compensation and Long-term Incentive Awards (Tables) Tables http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwards 39 false false R40.htm 9955520 - Disclosure - Noncontrolling Interests (Tables) Sheet http://www.wearelegence.com/role/NoncontrollingInterestsTables Noncontrolling Interests (Tables) Tables http://www.wearelegence.com/role/NoncontrollingInterests 40 false false R41.htm 9955521 - Disclosure - Earnings Per Share (Tables) Sheet http://www.wearelegence.com/role/EarningsPerShareTables Earnings Per Share (Tables) Tables http://www.wearelegence.com/role/EarningsPerShare 41 false false R42.htm 9955522 - Disclosure - Income Taxes (Tables) Sheet http://www.wearelegence.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.wearelegence.com/role/IncomeTaxes 42 false false R43.htm 9955523 - Disclosure - Segment Information (Tables) Sheet http://www.wearelegence.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.wearelegence.com/role/SegmentInformation 43 false false R44.htm 9955524 - Disclosure - Other Financial Information (Tables) Sheet http://www.wearelegence.com/role/OtherFinancialInformationTables Other Financial Information (Tables) Tables http://www.wearelegence.com/role/OtherFinancialInformation 44 false false R45.htm 9955525 - Disclosure - Nature of Operations and Basis of Presentation (Details) Sheet http://www.wearelegence.com/role/NatureofOperationsandBasisofPresentationDetails Nature of Operations and Basis of Presentation (Details) Details http://www.wearelegence.com/role/NatureofOperationsandBasisofPresentation 45 false false R46.htm 9955526 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Schedule of Disaggregation of Revenue (Details) Sheet http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccountsScheduleofDisaggregationofRevenueDetails Revenue Recognition and Related Balance Sheet Accounts - Schedule of Disaggregation of Revenue (Details) Details 46 false false R47.htm 9955527 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Narrative (Details) Sheet http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccountsNarrativeDetails Revenue Recognition and Related Balance Sheet Accounts - Narrative (Details) Details http://www.wearelegence.com/role/RevenueRecognitionandRelatedBalanceSheetAccountsTables 47 false false R48.htm 9955528 - Disclosure - Acquisitions - Schedule of Consideration Transferred (Details) Sheet http://www.wearelegence.com/role/AcquisitionsScheduleofConsiderationTransferredDetails Acquisitions - Schedule of Consideration Transferred (Details) Details 48 false false R49.htm 9955529 - Disclosure - Acquisitions - Narrative (Details) Sheet http://www.wearelegence.com/role/AcquisitionsNarrativeDetails Acquisitions - Narrative (Details) Details 49 false false R50.htm 9955530 - Disclosure - Acquisitions - Schedule of Asset and Liabilities (Details) Sheet http://www.wearelegence.com/role/AcquisitionsScheduleofAssetandLiabilitiesDetails Acquisitions - Schedule of Asset and Liabilities (Details) Details 50 false false R51.htm 9955531 - Disclosure - Acquisitions - Schedule of Identifiable Intangible Assets (Details) Sheet http://www.wearelegence.com/role/AcquisitionsScheduleofIdentifiableIntangibleAssetsDetails Acquisitions - Schedule of Identifiable Intangible Assets (Details) Details 51 false false R52.htm 9955532 - Disclosure - Acquisitions - Schedule of Supplemental Pro Forma Information (Details) Sheet http://www.wearelegence.com/role/AcquisitionsScheduleofSupplementalProFormaInformationDetails Acquisitions - Schedule of Supplemental Pro Forma Information (Details) Details 52 false false R53.htm 9955533 - Disclosure - Goodwill and Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill by Segment (Details) Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssetsScheduleofChangesintheCarryingValueofGoodwillbySegmentDetails Goodwill and Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill by Segment (Details) Details 53 false false R54.htm 9955534 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssetsScheduleofIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) Details 54 false false R55.htm 9955535 - Disclosure - Goodwill and Intangible Assets - Narrative (Details) Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssetsNarrativeDetails Goodwill and Intangible Assets - Narrative (Details) Details 55 false false R56.htm 9955536 - Disclosure - Goodwill and Intangible Assets - Schedule of Future Amortization of Intangible Assets (Details) Sheet http://www.wearelegence.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationofIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Future Amortization of Intangible Assets (Details) Details 56 false false R57.htm 9955537 - Disclosure - Variable Interest Entities and Equity Method Investments - Narrative (Details) Sheet http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestmentsNarrativeDetails Variable Interest Entities and Equity Method Investments - Narrative (Details) Details http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestmentsTables 57 false false R58.htm 9955538 - Disclosure - Variable Interest Entities and Equity Method Investments - Schedule of Carrying Amounts and Classification of the PCs' Assets and Liabilities (Details) Sheet http://www.wearelegence.com/role/VariableInterestEntitiesandEquityMethodInvestmentsScheduleofCarryingAmountsandClassificationofthePCsAssetsandLiabilitiesDetails Variable Interest Entities and Equity Method Investments - Schedule of Carrying Amounts and Classification of the PCs' Assets and Liabilities (Details) Details 58 false false R59.htm 9955539 - Disclosure - Debt - Schedule of Debt Obligations (Details) Sheet http://www.wearelegence.com/role/DebtScheduleofDebtObligationsDetails Debt - Schedule of Debt Obligations (Details) Details 59 false false R60.htm 9955540 - Disclosure - Debt - Term Loan (Details) Sheet http://www.wearelegence.com/role/DebtTermLoanDetails Debt - Term Loan (Details) Details 60 false false R61.htm 9955541 - Disclosure - Debt - Revolving Line of Credit (Details) Sheet http://www.wearelegence.com/role/DebtRevolvingLineofCreditDetails Debt - Revolving Line of Credit (Details) Details 61 false false R62.htm 9955542 - Disclosure - Debt - Notes Payable (Details) Notes http://www.wearelegence.com/role/DebtNotesPayableDetails Debt - Notes Payable (Details) Details 62 false false R63.htm 9955543 - Disclosure - Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) Sheet http://www.wearelegence.com/role/FairValueMeasurementsScheduleofFairValueAssetsandLiabilitiesMeasuredonRecurringBasisDetails Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) Details 63 false false R64.htm 9955544 - Disclosure - Fair Value Measurements - Schedule of Carrying Values and Fair Values of Debt Instruments (Details) Sheet http://www.wearelegence.com/role/FairValueMeasurementsScheduleofCarryingValuesandFairValuesofDebtInstrumentsDetails Fair Value Measurements - Schedule of Carrying Values and Fair Values of Debt Instruments (Details) Details 64 false false R65.htm 9955545 - Disclosure - Derivatives - Narrative (Details) Sheet http://www.wearelegence.com/role/DerivativesNarrativeDetails Derivatives - Narrative (Details) Details 65 false false R66.htm 9955546 - Disclosure - Derivatives - Schedule of Fair Value of Derivative Instruments (Details) Sheet http://www.wearelegence.com/role/DerivativesScheduleofFairValueofDerivativeInstrumentsDetails Derivatives - Schedule of Fair Value of Derivative Instruments (Details) Details 66 false false R67.htm 9955547 - Disclosure - Derivatives - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Details) Sheet http://www.wearelegence.com/role/DerivativesScheduleofCashFlowHedgesIncludedinAccumulatedOtherComprehensiveIncomeDetails Derivatives - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Details) Details 67 false false R68.htm 9955548 - Disclosure - Derivatives - Schedule of Interest Rate Swap Agreements (Details) Sheet http://www.wearelegence.com/role/DerivativesScheduleofInterestRateSwapAgreementsDetails Derivatives - Schedule of Interest Rate Swap Agreements (Details) Details 68 false false R69.htm 9955549 - Disclosure - Stockholders' Equity (Details) Sheet http://www.wearelegence.com/role/StockholdersEquityDetails Stockholders' Equity (Details) Details http://www.wearelegence.com/role/StockholdersEquity 69 false false R70.htm 9955550 - Disclosure - Stock-Based Compensation and Long-term Incentive Awards - Narrative (Details) Sheet http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwardsNarrativeDetails Stock-Based Compensation and Long-term Incentive Awards - Narrative (Details) Details http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwardsTables 70 false false R71.htm 9955551 - Disclosure - Stock-Based Compensation and Long-term Incentive Awards - Schedule of Compensation Expense And Corresponding Income Tax Benefit (Details) Sheet http://www.wearelegence.com/role/StockBasedCompensationandLongtermIncentiveAwardsScheduleofCompensationExpenseAndCorrespondingIncomeTaxBenefitDetails Stock-Based Compensation and Long-term Incentive Awards - Schedule of Compensation Expense And Corresponding Income Tax Benefit (Details) Details 71 false false R72.htm 9955552 - Disclosure - Noncontrolling Interests - Schedule of Ownership of Legence Holdings (Details) Sheet http://www.wearelegence.com/role/NoncontrollingInterestsScheduleofOwnershipofLegenceHoldingsDetails Noncontrolling Interests - Schedule of Ownership of Legence Holdings (Details) Details 72 false false R73.htm 9955553 - Disclosure - Earnings Per Share - Schedule of Computation of Basic and Diluted EPS (Details) Sheet http://www.wearelegence.com/role/EarningsPerShareScheduleofComputationofBasicandDilutedEPSDetails Earnings Per Share - Schedule of Computation of Basic and Diluted EPS (Details) Details 73 false false R74.htm 9955554 - Disclosure - Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) Sheet http://www.wearelegence.com/role/EarningsPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) Details 74 false false R75.htm 9955555 - Disclosure - Tax Receivable Agreement (Details) Sheet http://www.wearelegence.com/role/TaxReceivableAgreementDetails Tax Receivable Agreement (Details) Details http://www.wearelegence.com/role/TaxReceivableAgreement 75 false false R76.htm 9955556 - Disclosure - Income Taxes (Details) Sheet http://www.wearelegence.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.wearelegence.com/role/IncomeTaxesTables 76 false false R77.htm 9955557 - Disclosure - Segment Information - Narrative (Details) Sheet http://www.wearelegence.com/role/SegmentInformationNarrativeDetails Segment Information - Narrative (Details) Details 77 false false R78.htm 9955558 - Disclosure - Segment Information - Schedule of Segment Reporting Information (Details) Sheet http://www.wearelegence.com/role/SegmentInformationScheduleofSegmentReportingInformationDetails Segment Information - Schedule of Segment Reporting Information (Details) Details 78 false false R79.htm 9955559 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.wearelegence.com/role/CommitmentsandContingenciesDetails Commitments and Contingencies (Details) Details http://www.wearelegence.com/role/CommitmentsandContingencies 79 false false R80.htm 9955560 - Disclosure - Other Financial Information - Schedule of Accounts Receivable Net (Details) Sheet http://www.wearelegence.com/role/OtherFinancialInformationScheduleofAccountsReceivableNetDetails Other Financial Information - Schedule of Accounts Receivable Net (Details) Details 80 false false R81.htm 9955561 - Disclosure - Other Financial Information - Schedule of Prepaid Expenses And Other Current Assets (Details) Sheet http://www.wearelegence.com/role/OtherFinancialInformationScheduleofPrepaidExpensesAndOtherCurrentAssetsDetails Other Financial Information - Schedule of Prepaid Expenses And Other Current Assets (Details) Details 81 false false R82.htm 9955562 - Disclosure - Other Financial Information - Schedule of Accrued and Other Current Liabilities (Details) Sheet http://www.wearelegence.com/role/OtherFinancialInformationScheduleofAccruedandOtherCurrentLiabilitiesDetails Other Financial Information - Schedule of Accrued and Other Current Liabilities (Details) Details 82 false false R83.htm 9955563 - Disclosure - Other Financial Information - Schedule of Additional Cash Flow Information (Details) Sheet http://www.wearelegence.com/role/OtherFinancialInformationScheduleofAdditionalCashFlowInformationDetails Other Financial Information - Schedule of Additional Cash Flow Information (Details) Details 83 false false All Reports Book All Reports lgn-20260331.htm lgn-20260331.xsd lgn-20260331_cal.xml lgn-20260331_def.xml lgn-20260331_lab.xml lgn-20260331_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true