Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 11, 2020	Jul. 13, 2019	Jul. 11, 2020	Jul. 13, 2019
Income Statement [Abstract]
Sales	$ 1,025,861	$ 975,759	$ 2,375,305	$ 2,239,654
Materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately below)	506,033	508,552	1,176,906	1,160,693
Selling, distribution and administrative expenses	396,904	359,497	918,939	835,546
Depreciation and amortization	33,180	33,329	77,843	78,148
Recovery on inferior ingredients				(413)
Restructuring and related impairment charges	10,535	2,047	10,535	2,765
Income from operations	79,209	72,334	191,082	162,915
Interest expense	9,001	9,192	20,640	21,663
Interest income	(6,132)	(6,423)	(14,457)	(15,070)
Pension plan settlement and curtailment loss			116,207
Other components of net periodic pension and postretirement benefits (credit) expense	(72)	519	71	1,211
Income before income taxes	76,412	69,046	68,621	155,111
Income tax expense	18,493	15,951	16,474	36,150
Net income	$ 57,919	$ 53,095	$ 52,147	$ 118,961
Basic:
Net income per common share	$ 0.27	$ 0.25	$ 0.25	$ 0.56
Weighted average shares outstanding	211,780	211,685	211,766	211,517
Diluted:
Net income per common share	$ 0.27	$ 0.25	$ 0.25	$ 0.56
Weighted average shares outstanding	212,284	211,957	212,192	211,924
Cash dividends paid per common share	$ 0.2000	$ 0.1900	$ 0.3900	$ 0.3700