CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance (in shares) at Dec. 31, 2018		47,248				1,232
Beginning Balance at Dec. 31, 2018	$ 2,539,978	$ 47,248	$ 574,761	$ 2,427,599	$ (341,085)	$ (168,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	40,897			40,897
Cash dividends	(15,650)			(15,650)
Other comprehensive income (loss)	396				396
Shares issued under compensation plans (in shares)		(75)				(40)
Shares issued under compensation plans	5,198	$ 75	3,094			$ 2,029
Deferred compensation (in shares)						(4)
Deferred compensation	380		127			$ 253
Ending Balance (in shares) at Mar. 31, 2019		47,323				1,188
Ending Balance at Mar. 31, 2019	2,569,878	$ 47,323	577,982	2,451,525	(340,689)	$ (166,263)
Beginning Balance (in shares) at Dec. 31, 2019		47,536				1,182
Beginning Balance at Dec. 31, 2019	2,979,320	$ 47,536	616,980	2,824,916	(344,392)	$ (165,720)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	131,150			131,150
Cash dividends	(15,767)			(15,767)
Other comprehensive income (loss)	(20,327)				(20,327)
Shares issued under compensation plans (in shares)		(24)				(37)
Shares issued under compensation plans	(1,302)	$ 24	(3,074)			$ 1,748
Deferred compensation (in shares)						(5)
Deferred compensation	741		383			$ 358
Ending Balance (in shares) at Mar. 29, 2020		47,560				1,140
Ending Balance at Mar. 29, 2020	$ 3,073,024	$ 47,560	$ 614,289	$ 2,939,508	$ (364,719)	$ (163,614)