Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Amount [Member]	Capital In Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 30, 2018	$ 2,584,955	$ 110,597	$ 48,772	$ 2,602,067	$ (176,481)
Net income	35,412			35,412
Other comprehensive income (loss)	2,946
Dividends	(7,742)			(7,742)
Exercise of employee stock options and related income tax benefits	8,610	186	8,424
Issuance of common stock for employee benefit plans	(1,386)	(19)	(1,367)	0	0
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(5,293)	(57)	(5,236)
Issuance of common stock for long-term incentive program	(3,538)	(146)	(3,392)
Stock compensation	1,371	0	1,371	0	0
Ending Balance at Mar. 31, 2019	2,638,472	110,891	58,090	2,643,026	(173,535)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2016-02 [Member]	13,289	0	0		0
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	2,946				2,946
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-02 [Member]				13,289
Beginning Balance at Dec. 29, 2019	2,813,824	111,140	90,357	2,811,973	(199,646)
Net income	33,665			33,665
Other comprehensive income (loss)	(78,681)
Dividends	(7,779)			(7,779)
Exercise of employee stock options and related income tax benefits	1,106	21	1,085
Issuance of common stock for employee benefit plans	(1,256)	(14)	(1,242)
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(6,342)	(66)	(6,276)
Issuance of common stock for long-term incentive program	(3,028)	(197)	(2,831)
Stock compensation	997	0	997	0	0
Ending Balance at Apr. 05, 2020	2,759,746	111,306	90,236	2,836,531	(278,327)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2016-13 [Member]	(1,328)	$ 0	$ 0		0
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	$ (78,681)				$ (78,681)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-13 [Member]				$ (1,328)