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Acquisitions - Additional Information (Details) € in Thousands, ₨ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 20, 2024 USD ($) | Sep. 20, 2024 EUR (€) | Jul. 05, 2024 USD ($) | Jul. 05, 2024 INR (₨) | Jan. 03, 2024 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2025 INR (₨) | Jan. 31, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 20, 2024 EUR (€) | Jul. 01, 2024
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired |  |  |  |  |  |  |  |  |  | $ 174,445,000 | $ 33,932,000 |  |
Web Werks JV |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
EQUITY INTEREST |  |  | 71.94% | 71.94% |  |  |  |  |  |  |  |  |
Forecast | Web Werks JV |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
EQUITY INTEREST |  |  |  |  |  | 28.06% | 28.06% |  |  |  |  |  |
Wisetek |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership acquired | 100.00% |  |  |  |  |  |  |  |  |  |  | 100.00% |
Total Consideration | $ 51,900,000 | € 46,600 |  |  |  |  |  |  |  |  |  |  |
Contingent consideration liability | $ 4,700,000 |  |  |  |  |  |  |  |  |  |  | € 4,200 |
RSR Partners, LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership acquired |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Total Consideration |  |  |  |  | $ 200,000,000 |  |  |  |  |  |  |  |
Cash Paid (gross of cash acquired) |  |  |  |  | 125,000,000 |  |  |  |  |  |  |  |
RSR Partners, LLC | Regency Deferred Purchase Obligation |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration liability |  |  |  |  | 78,400,000 |  |  |  |  |  |  |  |
Value of possible subsequent acquisition, low |  |  |  |  | 0 |  |  |  |  |  |  |  |
Value of possible subsequent acquisition, high |  |  |  |  | $ 200,000,000 |  |  |  |  |  |  |  |
RSR Partners, LLC | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Paid (gross of cash acquired) |  |  |  |  |  |  |  | $ 75,000,000 |  |  |  |  |
Web Werks JV |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership acquired |  |  | 8.55% | 8.55% |  |  |  |  |  |  |  |  | 36.61%
Total Consideration |  |  | $ 35,000,000 | ₨ 3,000,000 |  |  |  |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired |  |  |  |  |  |  |  |  | $ 29,200,000 |  |  |  |
Web Werks JV | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total Consideration |  |  |  |  |  | $ 11,900,000 | ₨ 1,000,000 |  |  |  |  |  |
Cash Paid (gross of cash acquired) |  |  |  |  |  | $ 114,600,000 | ₨ 9,600,000 |  |  |  |  |  |

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