Employee Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2026	Dec. 27, 2024	Dec. 29, 2023
Swiss Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	[1]	$ 1,689	$ 1,233	$ 916
Interest cost	[2]	247	340	413
Expected return on plan assets	[2]	(546)	(540)	(452)
Prior service credit	[2],[3]	(211)	(179)	(179)
Actuarial loss recognized in current period	[2],[3]	302	117
Net periodic pension cost		1,481	971	698
Japan Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	[1]	56	56	60
Interest cost	[2]	4	3	3
Prior service credit	[2],[3]	(13)	(5)	(14)
Settlement gain	[2],[3]	0	(10)	(160)
Curtailment gain	[2],[3]	0	0	(4)
Net periodic pension cost		$ 47	$ 44	$ (115)

[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).