Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 122,197	$ 133,123	$ 377,376	$ 396,557
Components of other comprehensive income (loss)
Cumulative translation adjustment	19,491	(9,022)	(26)	506
Pension and postretirement medical liability adjustment	(268)	1,100	1,954	3,427
Income taxes - pension and postretirement medical liability adjustment	66	(252)	(523)	(760)
Other comprehensive income (loss)	19,289	(8,174)	1,405	3,173
Comprehensive Income	$ 141,486	$ 124,949	$ 378,781	$ 399,730