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Transactions - Narrative (Details) - USD ($) $ in Thousands, shares in Millions |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2024 | Aug. 01, 2024 | Jan. 20, 2023 | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Payments to acquire businesses |  |  |  |  |  |  | $ 16,947 | $ 388,246 |
Payment of contingent consideration |  |  |  |  |  |  | 70,355 | 0 |
Fair value of contingent consideration |  |  |  |  | $ 88,800 |  |  |  |
Discrete tax benefit |  |  |  | $ 619 |  | $ 5,550 | $ 292 | $ 74,709 |
Corporate trade name |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  | 3 months |  |  | 3 months |  |
Machinify |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total consideration |  | $ 28,500 |  |  |  |  |  |  |
Payments to acquire businesses |  | 19,500 |  |  |  |  |  |  |
Paid upon closing |  | 11,000 |  |  |  |  |  |  |
Fair value of contingent consideration |  | 9,000 | $ 66,600 |  |  |  |  |  |
Machinify | Subsequent event |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Payment of contingent consideration | $ 8,500 |  |  |  |  |  |  |  |
Contingent consideration arrangements (up to) | $ 12,500 |  |  |  |  |  |  |  |
Machinify | Technology |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  | 5 years |  |  |  |  |  |
NIA |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total consideration |  |  | $ 715,694 |  |  |  |  |  |
Payments to acquire businesses |  |  | 387,823 |  |  |  |  |  |
Contingent consideration arrangements (up to) |  |  | 150,000 |  |  |  |  |  |
Contingent consideration |  | $ 9,000 |  |  |  |  |  |  |
Fair value of Class A common stock issued |  |  | $ 261,271 |  |  |  |  |  |
Percentage of contingent consideration allowed to be paid in equity interest (up to) |  |  | 50.00% |  |  |  |  |  |
Fair value of contingent consideration |  |  | $ 66,600 |  |  |  |  |  |
Discrete tax benefit |  |  |  |  |  |  |  |  | $ 56,100
NIA | Customer relationships |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  | 15 years |  |  |  |  |  |
NIA | Corporate trade name |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  | 2 years |  |  |  |  |  |
NIA | Common Class A |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Equity interest issued or issuable, number of shares (in shares) |  |  | 8.5 |  |  |  |  |  |

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