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Employee Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 27, 2024 | Dec. 29, 2023 | Dec. 30, 2022
Swiss Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service cost | [1] | $ 1,233 | $ 916 | $ 1,133
Interest cost | [2] | 340 | 413 | 82
Expected return on plan assets | [2] | (540) | (452) | (494)
Prior service credit | [2],[3] | (179) | (179) | (179)
Actuarial loss recognized in current period | [2],[3] | 117 |  | 390
Net periodic pension cost |  | 971 | 698 | 932
Japan Plan |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service cost | [1] | 56 | 60 | 116
Interest cost | [2] | 3 | 3 | 2
Prior service credit | [2],[3] | (5) | (14) | (24)
Settlement gain | [2],[3] | (10) | (160) | 0
Curtailment gain | [2],[3] | 0 | (4) | 0
Net periodic pension cost |  | $ 44 | $ (115) | $ 94
[1] | Recognized in selling general and administrative expenses on the Consolidated Statements of Operations.
[2] | Recognized in other income, net, on the Consolidated Statements of Operations.
[3] | Amounts reclassified from accumulated other comprehensive income (loss).

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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