Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (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]
Current year actuarial gain (loss) on plan assets	$ 833	$ 4	$ (101)
Current year actuarial loss on benefit obligation	(4,136)	(2,172)	(243)
Actuarial gain (loss) recorded in current year	285	114	103
Prior service credit	43	93	(19)
Effect of curtailments	1
Change in other comprehensive income (loss)	(2,974)	(1,961)	(260)
Japan Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of net transition obligation			7
Amortization of actuarial loss	(1)	(1)	(1)
Actuarial gain (loss) recorded in current year	(22)	30	(84)
Prior service credit	0	(1)	0
Change in other comprehensive income (loss)	$ (23)	$ 28	$ (78)