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Debt - Carrying Amounts of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Apr. 02, 2020	Dec. 28, 2019
Debt Instrument
Unamortized debt issuance costs	$ (4,467)		$ (3,669)
Total debt	776,205		679,158
Less: Current maturities	0		(10,000)
Total long-term debt	776,205		669,158
Revolving Credit Facility
Debt Instrument
Long-term debt, gross	240,000		0
Term Loan
Debt Instrument
Long-term debt, gross	0	$ 140,000	145,000
Euro Senior Notes, Series A due 2023
Debt Instrument
Long-term debt, gross	131,378		129,808
Euro Senior Notes, Series B due 2028
Debt Instrument
Long-term debt, gross	106,675		105,400
U.S. Senior Notes, Series A due 2022
Debt Instrument
Long-term debt, gross	25,000		25,000
U.S. Senior Notes, Series B due 2027
Debt Instrument
Long-term debt, gross	100,000		100,000
U.S. Senior Notes, Series A due 2025
Debt Instrument
Long-term debt, gross	50,000		50,000
U.S. Senior Notes, Series B due 2030
Debt Instrument
Long-term debt, gross	125,000		125,000
Other
Debt Instrument
Long-term debt, gross	$ 2,619		$ 2,619