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Goodwill and Intangibles (Tables) | 6 Months Ended
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Mar. 28, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Carrying Value of Goodwill by Reportable Segment Appearing in Accompanying Consolidated Balance Sheets | The carrying value of goodwill appearing in the accompanying Consolidated Balance Sheets at March 28, 2025 and September 27, 2024 was as follows (in thousands):
| Infrastructure & Advanced Facilities |  | PA Consulting |  | Total
Balance September 27, 2024 | $ | 3,362,760 |  |  | $ | 1,425,421 |  |  | $ | 4,788,181 |
Foreign currency translation adjustments and other | (15,719) |  |  | (45,543) |  |  | (61,262) |
Balance March 28, 2025 | $ | 3,347,041 |  |  | $ | 1,379,878 |  |  | $ | 4,726,919 |
Schedule of Acquired Intangibles in Accompanying Consolidated Balance Sheets | The following table provides certain information related to the Company’s acquired intangibles in the accompanying Consolidated Balance Sheets at March 28, 2025 and September 27, 2024 (in thousands):
| Customer Relationships, Contracts and Backlog |  |  |  | Developed Technology |  | Trade Names |  |  |  |  |  |  |  | Total
Balance September 27, 2024 | $ | 651,894 |  |  |  |  | $ | 31,515 |  |  | $ | 191,485 |  |  |  |  |  |  |  |  | $ | 874,894 |
Amortization | (63,495) |  |  |  |  | (5,989) |  |  | (7,217) |  |  |  |  |  |  |  |  | (76,701) |
Foreign currency translation adjustments and other | (17,669) |  |  |  |  | (29) |  |  | (5,899) |  |  |  |  |  |  |  |  | (23,597) |
Balance March 28, 2025 | $ | 570,730 |  |  |  |  | $ | 25,497 |  |  | $ | 178,369 |  |  |  |  |  |  |  |  | $ | 774,596 |
Schedule of Estimated Amortization Expense of Intangible Assets | The following table presents estimated amortization expense of intangible assets for the remainder of fiscal 2025 and for the succeeding years.
Fiscal Year |  | (in millions)
2025 |  | $ | 77.3 |
2026 |  | 136.0 |
2027 |  | 106.0 |
2028 |  | 95.6 |
2029 |  | 95.6 |
Thereafter |  | 264.1 |
Total |  | $ | 774.6 |

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