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Other Financial Information - Schedule of Additional Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Cash paid for interest and taxes |  |  |
Interest paid, net of interest rate swaps | $ 96,884 | $ 85,662 | $ 61,794
Income taxes paid, net of refunds | 16,442 | 17,496 | 10,160
Non-cash investing activities |  |  |
Property and equipment additions included in Accounts payable | 4,906 | 429 | 579
Non-cash financing activities |  |  |
Parent issuance of Parent interests for contingent consideration - related parties | 0 | 0 | 9,325
Deferred offering costs included in Accounts payable | 60 | 3,488 | 0
Contribution from Legence Parent for Series A Interests and Restricted Series C Interests | 30,510 | 0 | 0
Contribution from Legence Parent II for Series A Interests | 17,805 | 0 | 0
TRA liability - secondary offering exchanges | 58,060 | 0 | 0
Deferred tax asset, net of valuation allowance, recognized in connection with TRA liability - secondary offering exchanges | 4,552 | 0 | 0
Non-cash financing activities related to IPO and Corporate Reorganization |  |  |
Reclassification of Series A Interests and Restricted Series C Interests from liability to equity | 36,358 | 0 | 0
TRA liability recognized | 146,474 | 0 | 0
Deferred tax asset, net of valuation allowance, recognized in connection with TRA liability | $ 28,697 | $ 0 | $ 0

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