0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Operations (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Changes in Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Nature of Operations and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Goodwill and Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Variable Interest Entities and Equity Method Investments link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Derivatives link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Stockholders' Equity / Member's Equity link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Noncontrolling Interests link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Tax Receivable Agreement link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - Other Financial Information link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Variable Interest Entities and Equity Method Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Derivatives (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Noncontrolling Interests (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Other Financial Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Nature of Operations and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Schedule of Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Revenue Recognition and Related Balance Sheet Accounts - Schedule of Contract Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Acquisitions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Acquisitions - Schedule of Consideration Transferred (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Acquisitions - Schedule of Asset and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Acquisitions - Schedule of Supplemental Pro Forma Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Goodwill and Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Goodwill and Intangible Assets - Schedule of Future Amortization of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Variable Interest Entities and Equity Method Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Variable Interest Entities and Equity Method Investments - Schedule of Carrying Amounts and Classification of the PCs' Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Debt - Schedule of Debt Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Debt - Term Loan (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Debt - Revolving Line of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Debt - Notes Payable (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Fair Value Measurements - Schedule of Carrying Values and Fair Values of Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Derivatives - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Derivatives - Schedule of Fair Value of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Derivatives - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Derivatives - Schedule of Interest Rate Swap Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Stockholders' Equity / Member's Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Stock-Based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Stock-Based Compensation - Schedule of Weighted-Average Inputs (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Noncontrolling Interests - Schedule of Ownership of Legence Holdings (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Noncontrolling Interests - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Earnings Per Share - Schedule of Computation of Basic and Diluted EPS (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Tax Receivable Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Segment Information - Schedule of Segment Reporting Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Other Financial Information - Schedule of Accounts Receivable Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Other Financial Information - Schedule of Prepaid Expenses And Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Other Financial Information - Schedule of Additional Cash Flow Information - (Details) link:presentationLink link:calculationLink link:definitionLink