Components of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Disclosure Other Comprehensive Income Additional Information [Abstract]
Net earnings	$ 21,162	$ 92,210	$ 94,941	$ 161,223
Currency Translation Adjustment	19,852	(12,445)	(29,064)	(1,762)
Change in unrecognized pension benefit costs, net of tax	(2,491)	5,254	12,317	(9)
Unrealized gain on interest rate swaps, net of tax	(2,661)	(14,124)	(27,880)	(23,491)
Comprehensive income	$ 35,862	$ 70,895	$ 50,314	$ 135,961