Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 09, 2021	Oct. 03, 2020	Oct. 09, 2021	Oct. 03, 2020
Income Statement [Abstract]
Sales	$ 1,027,800	$ 989,650	$ 3,347,277	$ 3,364,955
Materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately below)	515,078	497,659	1,662,716	1,674,565
Selling, distribution and administrative expenses	426,575	386,739	1,336,255	1,305,678
Depreciation and amortization	31,680	32,162	104,685	110,005
Recovery on inferior ingredients	(950)		(828)
Restructuring and related impairment charges		20,100		30,635
Multi-employer pension plan withdrawal costs	3,300		3,300
Income from operations	52,117	52,990	241,149	244,072
Interest expense	6,670	8,706	24,907	29,346
Interest income	(5,359)	(5,951)	(18,325)	(20,408)
Loss on extinguishment of debt			16,149
Pension plan settlement and curtailment (gain) loss		(7,153)		109,054
Other components of net periodic pension and postretirement benefits credit	(94)	(72)	(312)	(1)
Income before income taxes	50,900	57,460	218,730	126,081
Income tax expense	12,048	13,113	51,865	29,587
Net income	$ 38,852	$ 44,347	$ 166,865	$ 96,494
Basic:
Net income per common share	$ 0.18	$ 0.21	$ 0.79	$ 0.46
Weighted average shares outstanding	211,921	211,800	211,912	211,776
Diluted:
Net income per common share	$ 0.18	$ 0.21	$ 0.78	$ 0.45
Weighted average shares outstanding	213,187	212,458	212,979	212,270
Cash dividends paid per common share	$ 0.2100	$ 0.2000	$ 0.6200	$ 0.5900