Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (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]
Current year actuarial gain (loss) on plan assets	$ 1,982	$ (1,326)	$ 1,316
Current year actuarial gain (loss) on benefit obligation	(1,653)	(619)	(4,847)
Prior service credit	(87)	120	(161)
Effect of curtailments	(1)
Actuarial gain (loss) recorded in current year	265	103	2
Change in other comprehensive gain (loss)	506	(1,722)	(3,690)
Japan Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of actuarial loss	0	3	2
Prior service credit	0	0	(1)
Actuarial gain (loss) recorded in current year	(13)	4	(21)
Settlement	(1)	4	(106)
Curtailment loss	0	0	(2)
Change in other comprehensive gain (loss)	$ (14)	$ 11	$ (128)