Employee Benefit Plans - Schedule of Defined Benefit Plans Disclosures (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Swiss Plan
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of period		$ 12,864	$ 8,794
Service cost	[1]	1,139	739	$ 474
Interest cost	[2]	51	77	56
Participant contributions		579	458
Benefits deposited (paid)		6,299	492
Actuarial loss (gain)		4,620	2,429
Prior service credit		(82)	(125)
Projected benefit obligation, end of period		25,470	12,864	8,794
Change in Plan Assets:
Plan assets at fair value, beginning of period		6,774	5,130
Actual return on plan assets		1,195	152
Employer contributions		704	542
Participant contributions		579	458
Benefits deposited (paid)		6,299	492
Plan assets at fair value, end of period		15,551	6,774	5,130
Funded status (pension liability), end of year	[3]	(9,919)	(6,090)
Amount Recognized in Accumulated Other Comprehensive Income (Loss), net of tax:
Actuarial loss on plan assets		(198)	(1,031)
Actuarial loss on benefit obligation		(8,453)	(4,317)
Actuarial gain (loss) recognized in current year		1,029	744
Prior service credit		301	258
Effect of curtailments		610	609
Accumulated other comprehensive income (loss)		(6,711)	(3,737)
Accumulated benefit obligation at year end		(24,291)	(12,043)
Japan Plan
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of period		1,750	1,646
Service cost	[1]	180	185	153
Interest cost	[2]	5	7	4
Benefits deposited (paid)		(35)	(66)
Actuarial loss (gain)		34	(58)
Foreign exchange adjustment		87	36
Projected benefit obligation, end of period		2,021	1,750	1,646
Change in Plan Assets:
Plan assets at fair value, beginning of period		0	0
Actual return on plan assets		0	0
Employer contributions		0	0
Plan assets at fair value, end of period		0	0	$ 0
Benefits paid		0	0
Distribution of plan assets		0	0
Foreign exchange adjustment		0	0
Funded status (pension liability), end of year	[3]	(2,021)	(1,750)
Amount Recognized in Accumulated Other Comprehensive Income (Loss), net of tax:
Transition obligation		0	0
Actuarial gain (loss) recognized in current year		(38)	(37)
Prior service credit		7	7
Net gain		46	68
Accumulated other comprehensive income (loss)		15	38
Accumulated benefit obligation at year end		$ (1,858)	$ (1,599)

[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] The underfunded balance was included in pension liability on the Consolidated Balance Sheets.