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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Oct. 03, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of changes in carrying value of goodwill | The following table summarizes the changes in the carrying value of goodwill:
| GSG |  | CIG |  | Total
| (in thousands)
Balance at September 29, 2019 | $ | 441,802 |  |  | $ | 483,018 |  |  | $ | 924,820 |
Acquisitions | 74,882 |  |  | 5,294 |  |  | 80,176 |
Impairment | — |  |  | (15,800) |  |  | (15,800) |
Translation and other | (369) |  |  | 4,671 |  |  | 4,302 |
Balance at September 27, 2020 | 516,315 |  |  | 477,183 |  |  | 993,498 |
Acquisitions | 15,112 |  |  | 75,479 |  |  | 90,591 |
Translation and other | 7,006 |  |  | 17,483 |  |  | 24,489 |
Balance at October 3, 2021 | $ | 538,433 |  |  | $ | 570,145 |  |  | $ | 1,108,578 |
Summary of acquired identifiable intangible assets with finite useful lives | The fo llowing tabl e presents the gross amount and accumulated amortization of our acquired identifiable intangible assets with finite useful lives included in "Intangible assets, net" on the consolidated balance sheets:
| Fiscal Year Ended |  |
| October 3, 2021 |  | September 27, 2020
| Weighted- Average Remaining Life (in years) |  | Gross Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Amount |  | Accumulated Amortization |  | Net Amount
| ($ in thousands) |  |
Client relations | 7.3 |  | $ | 69,455 |  |  | $ | (43,984) |  |  | $ | 25,471 |  |  | $ | 60,775 |  |  | $ | (53,392) |  |  | $ | 7,383 |
Backlog | 0.7 |  | 34,577 |  |  | (30,670) |  |  | 3,907 |  |  | 37,682 |  |  | (32,761) |  |  | 4,921 |
Technology and trade names | 3.8 |  | 14,939 |  |  | (6,327) |  |  | 8,612 |  |  | 7,964 |  |  | (6,325) |  |  | 1,639 |
Total |  |  | $ | 118,971 |  |  | $ | (80,981) |  |  | $ | 37,990 |  |  | $ | 106,421 |  |  | $ | (92,478) |  |  | $ | 13,943 |
Estimated amortization expense for the succeeding five years and beyond | Estimated amortization expense for the succeeding five fiscal years and beyond is as foll ows:
| Amount
| (in thousands)
2022 | $ | 9,664 |
2023 | 7,591 |
2024 | 4,983 |
2025 | 4,348 |
2026 | 3,967 |
Beyond | 7,437 |
Total | $ | 37,990 |

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- Definition Tabular disclosure of the characteristics, including gross value, accumulated amortization amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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