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Goodwill and Intangible Assets | 12 Months Ended
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Dec. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill Goodwill by reportable segment was as follows (in thousands):
|  | Probe Cards |  | Systems |  | Total
Goodwill, as of December 25, 2021 |  | $ | 178,424 |  |  | $ | 33,875 |  |  | $ | 212,299 |
Addition - Woburn acquisition |  | — |  |  | 550 |  |  | 550 |
Foreign currency translation |  | — |  |  | (1,405) |  |  | (1,405) |
Goodwill, as of December 31, 2022 |  | 178,424 |  |  | 33,020 |  |  | 211,444 |
Reduction - FRT divestiture |  | — |  |  | (10,660) |  |  | (10,660) |
Foreign currency translation |  | — |  |  | 306 |  |  | 306 |
Goodwill, as of December 30, 2023 |  | $ | 178,424 |  |  | $ | 22,666 |  |  | $ | 201,090 |
Intangible Assets Intangible assets were as follows (in thousands):
|  | December 30, 2023 |  | December 31, 2022
Other Intangible Assets |  | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net
Existing developed technologies |  | $ | 159,593 |  |  | $ | 148,445 |  |  | $ | 11,148 |  |  | $ | 171,441 |  |  | $ | 151,212 |  |  | $ | 20,229 |
Trade name |  | 7,808 |  |  | 7,728 |  |  | 80 |  |  | 7,972 |  |  | 7,759 |  |  | 213 |
Customer relationships |  | 48,022 |  |  | 46,712 |  |  | 1,310 |  |  | 50,912 |  |  | 45,003 |  |  | 5,909 |
In-process research and development |  | 400 |  |  | — |  |  | 400 |  |  | 400 |  |  | — |  |  | 400 |
|  | $ | 215,823 |  |  | $ | 202,885 |  |  | $ | 12,938 |  |  | $ | 230,725 |  |  | $ | 203,974 |  |  | $ | 26,751 |
Amortization expense was included in our Consolidated Statements of Income as follows (in thousands):
|  | Fiscal Year Ended
|  | December 30, 2023 |  | December 31, 2022 |  | December 25, 2021
Cost of revenues |  | $ | 3,081 |  |  | $ | 3,225 |  |  | $ | 12,269 |
Selling, general and administrative |  | 3,769 |  |  | 6,166 |  |  | 6,478 |
|  | $ | 6,850 |  |  | $ | 9,391 |  |  | $ | 18,747 |
The estimated future amortization of definite-lived intangible assets, excluding in-process research and development, is as follows (in thousands):
Fiscal Year |  | Amount
2024 |  | $ | 2,561 |
2025 |  | 2,330 |
2026 |  | 1,630 |
2027 |  | 1,630 |
2028 |  | 1,630 |
Thereafter |  | 2,757 |
Total |  | $ | 12,538 |
We did not record any impairment of intangible assets in fiscal 2023, 2022 and 2021.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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