Employee Benefit Plans - Funded Status of Defined Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018	Jan. 03, 2021	Dec. 29, 2019
Amounts recognized in accumulated other comprehensive income, after tax:
Total amount recognized				$ 69,288	$ 56,700
Foreign Plan
Change in benefit obligation:
Benefit obligation, beginning of year	$ 314,841	$ 285,508
Service cost	1,070	1,589	$ 1,112
Interest cost	4,038	5,676	5,467
Benefits and expenses paid	(12,041)	(13,034)
Actuarial loss (gain)	31,618	37,409
Curtailment gain	0	(2,421)
Member contributions	0	221
Currency translation adjustment	24,917	(107)
Benefit obligation, end of year	364,443	314,841	285,508
Change in plan assets:
Plan assets, beginning of year	266,450	249,313
Actual return on assets	25,239	24,999
Company contributions	4,451	3,954
Benefits paid	(12,041)	(13,034)
Currency translation adjustment	19,432	1,218
Plan assets, end of year	303,531	266,450	249,313
Reconciliation to balance sheet
Funded status benefit asset (liability)				(60,912)	(48,391)
Amounts recognized in accumulated other comprehensive income, after tax:
Unrecognized actuarial loss				58,257	47,561
Unamortized prior service credits				0	0
Total amount recognized				58,257	47,561
Accumulated benefit obligation				364,443	314,841
Projected benefit obligation	314,841	314,841	285,508	364,443	314,841
UK Plan
Change in benefit obligation:
Benefit obligation, beginning of year	170,958
Benefit obligation, end of year	198,215	170,958
Amounts recognized in accumulated other comprehensive income, after tax:
Accumulated benefit obligation				198,215	170,958
Projected benefit obligation	170,958	170,958		198,215	170,958
Plan assets				193,991	174,156
Dutch Plan
Change in benefit obligation:
Benefit obligation, beginning of year	100,996
Benefit obligation, end of year	116,379	100,996
Amounts recognized in accumulated other comprehensive income, after tax:
Accumulated benefit obligation				116,379	100,996
Projected benefit obligation	100,996	100,996		116,379	100,996
Plan assets				109,540	92,294
Nora Plan
Change in benefit obligation:
Benefit obligation, beginning of year	42,887
Benefit obligation, end of year	49,849	42,887
Amounts recognized in accumulated other comprehensive income, after tax:
Accumulated benefit obligation				49,849	42,887
Projected benefit obligation	42,887	42,887		49,849	42,887
Plan assets				0	0
United States
Change in benefit obligation:
Benefit obligation, beginning of year	31,740	29,142
Service cost	0	0	0
Interest cost	938	1,154	1,082
Benefits and expenses paid	(2,030)	(2,030)
Actuarial loss (gain)	3,186	3,474
Benefit obligation, end of year	33,834	31,740	29,142
Change in plan assets:
Company contributions	2,000
Amounts recognized in the consolidated balance sheets
Current liabilities				(2,030)	(2,030)
Non-current liabilities				(31,804)	(29,710)
Amounts recognized in accumulated other comprehensive income, after tax:
Unrecognized actuarial loss				11,031	9,139
Accumulated benefit obligation				33,800	31,700
Projected benefit obligation	$ 31,740	$ 31,740	$ 29,142	33,834	31,740
Total benefit obligation				$ 33,834	$ 31,740