Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Oct. 05, 2019	Oct. 03, 2020	Oct. 05, 2019
Income Statement [Abstract]
Sales	$ 989,650	$ 966,561	$ 3,364,955	$ 3,206,215
Materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately below)	497,659	509,056	1,674,565	1,669,749
Selling, distribution and administrative expenses	386,739	362,380	1,305,678	1,197,926
Depreciation and amortization	32,162	33,196	110,005	111,344
Recovery on inferior ingredients				(413)
Restructuring and related impairment charges	20,100	3,277	30,635	6,042
Income from operations	52,990	58,652	244,072	221,567
Interest expense	8,706	8,705	29,346	30,368
Interest income	(5,951)	(6,371)	(20,408)	(21,441)
Pension plan settlement and curtailment (gain) loss	(7,153)		109,054
Other components of net periodic pension and postretirement benefits (credit) expense	(72)	518	(1)	1,729
Income before income taxes	57,460	55,800	126,081	210,911
Income tax expense	13,113	12,442	29,587	48,592
Net income	$ 44,347	$ 43,358	$ 96,494	$ 162,319
Basic:
Net income per common share	$ 0.21	$ 0.20	$ 0.46	$ 0.77
Weighted average shares outstanding	211,800	211,711	211,776	211,575
Diluted:
Net income per common share	$ 0.21	$ 0.20	$ 0.45	$ 0.77
Weighted average shares outstanding	212,458	212,014	212,270	211,956
Cash dividends paid per common share	$ 0.2000	$ 0.1900	$ 0.5900	$ 0.5600