Employee Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Swiss Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	[1]	$ 1,139	$ 739	$ 474
Interest cost	[2]	51	77	56
Expected return on plan assets	[2]	(264)	(147)	(116)
Prior service credit	[2],[3]	(34)	(21)	(21)
Actuarial loss recognized in current period	[2],[3]	318	129	113
Net periodic pension cost		1,210	777	506
Japan Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	[1]	180	185	153
Interest cost	[2]	5	7	4
Net amortization of transitional obligation	[2],[4]			11
Prior service credit	[2],[4]	(1)	(1)	(1)
Net periodic pension cost		$ 184	$ 191	$ 167

[1] Recognized in selling general and administrative expenses on the Consolidated Statements of Income.

[2] Recognized in other income (expense), net, on the Consolidated Statements of Income.

[3] Amounts reclassified from accumulated other comprehensive income (loss).

[4] Amounts reclassified from accumulated other comprehensive loss