Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 08, 2016	Oct. 10, 2015	Oct. 08, 2016	Oct. 10, 2015
Income Statement [Abstract]
Sales	$ 918,791	$ 885,302	$ 3,058,168	$ 2,920,142
Materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately below)	476,760	464,045	1,575,905	1,507,214
Selling, distribution and administrative expenses	341,538	322,087	1,124,473	1,064,619
Impairment of assets				2,275
Pension plan settlement loss	1,832		6,473
Depreciation and amortization	32,530	29,419	108,595	99,704
Income from operations	66,131	69,751	242,722	246,330
Interest expense	9,440	5,992	26,157	20,349
Interest income	(4,757)	(5,114)	(15,686)	(17,029)
Income before income taxes	61,448	68,873	232,251	243,010
Income tax expense	21,232	25,077	81,517	86,065
Net income	$ 40,216	$ 43,796	$ 150,734	$ 156,945
Basic:
Net income per common share	$ 0.19	$ 0.21	$ 0.72	$ 0.75
Weighted average shares outstanding	207,402	210,842	208,649	210,318
Diluted:
Net income per common share	$ 0.19	$ 0.21	$ 0.72	$ 0.74
Weighted average shares outstanding	208,944	213,310	210,564	212,921
Cash dividends paid per common share	$ 0.1600	$ 0.1450	$ 0.4650	$ 0.4225