Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	4 Months Ended
	Apr. 22, 2017	Apr. 23, 2016
Income Statement [Abstract]
Sales	$ 1,187,649	$ 1,204,352
Materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately below)	607,941	621,190
Selling, distribution and administrative expenses	461,270	444,539
Gain on divestiture	(28,875)
Depreciation and amortization	47,188	43,467
Income from operations	100,125	95,156
Interest expense	11,625	9,068
Interest income	(6,577)	(6,290)
Income before income taxes	95,077	92,378
Income tax expense	34,659	33,015
Net income	$ 60,418	$ 59,363
Basic:
Net income per common share	$ 0.29	$ 0.28
Weighted average shares outstanding	209,123	210,662
Diluted:
Net income per common share	$ 0.29	$ 0.28
Weighted average shares outstanding	210,275	212,836
Cash dividends paid per common share	$ 0.1600	$ 0.1450