Restructuring Activities - Restructuring Plan Reserve Recorded in Accrued Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2021	Mar. 29, 2020
Restructuring Reserve [Roll Forward]
Balance, beginning of period	$ 23,920
Restructuring (benefit) expense	(366)	$ 0
Utilized – cash	(16,442)
Utilized – non cash	528
Foreign currency changes	(166)
Balance, end of period	7,474
Employee Termination Benefits
Restructuring Reserve [Roll Forward]
Balance, beginning of period	7,724
Restructuring (benefit) expense	(944)
Utilized – cash	(3,661)
Utilized – non cash	0
Foreign currency changes	(112)
Balance, end of period	3,007
Contract Termination
Restructuring Reserve [Roll Forward]
Balance, beginning of period	16,196
Restructuring (benefit) expense	1,106
Utilized – cash	(12,781)
Utilized – non cash	0
Foreign currency changes	(54)
Balance, end of period	4,467
Non-Current Asset Adjustments
Restructuring Reserve [Roll Forward]
Balance, beginning of period	0
Restructuring (benefit) expense	(528)
Utilized – cash	0
Utilized – non cash	528
Foreign currency changes	0
Balance, end of period	$ 0