Employee Benefit Plans - Net Periodic Benefit Cost (Details) - Foreign Plan - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,070	$ 1,589	$ 1,112
Interest cost	4,038	5,676	5,467
Expected return on plan assets	(4,256)	(5,561)	(6,234)
Amortization of prior service cost	106	63	(27)
Amortization of net actuarial (gains) losses	1,549	991	1,394
Curtailment gain	0	(453)	0
Net periodic benefit cost	$ 2,507	$ 2,305	$ 1,712