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Acquisitions - Additional Information (Details) - Applied Energy Group, Inc. - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2024 | Mar. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2025
Business Combination [Line Items] |  |  |  |  |
Business acquisition date | Dec. 31, 2024 |  |  |  |
Business acquisition, description |  |  | AEG, an energy technology and advisory services company |  |
Cash purchase price | $ 59,900 |  |  |  |
Restricted cash |  |  | $ 5,400 |  |
Accounts receivable |  |  | 4,400 |  |
Contract assets |  |  | 2,600 |  |
Accrued expenses |  |  | 6,600 |  |
Accounts payable |  |  | 1,300 |  |
Other assets |  |  | 700 |  |
Other liabilities |  |  | 700 |  |
Trade Names and Trademarks |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Purchase price allocated to intangibles |  |  | $ 350 |  |
Estimated useful lives of acquired intangible assets |  |  | 3 months 15 days |  |
Customer-Related Intangibles |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Purchase price allocated to intangibles | 21,000 | $ 20,000 | $ 20,000 | $ 21,000 |
Estimated useful lives of acquired intangible assets |  | 6 years | 6 years | 9 years |
Goodwill |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |
Purchase price allocated to intangibles | $ 30,200 |  |  | $ 30,200 | $ 30,600

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