Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Consolidated Statements of Income [Abstract]
Net sales	$ 2,692,588	$ 2,701,405	$ 2,752,504
Cost of sales, including warehousing and distribution expenses	1,947,120	1,958,852	2,016,649
Gross profit on sales	745,468	742,553	735,855
Operating, general, and administrative expenses	634,286	615,521	621,575
Income from operations	111,182	127,032	114,280
Investment income	4,684	3,468	3,326
Other Income	0	414	0
Income before provision for income taxes	115,866	130,914	117,606
Provision for income taxes	44,145	48,403	42,022
Net income	$ 71,721	$ 82,511	$ 75,584
Weighted-average shares outstanding, basic and diluted	26,898,443	26,898,443	26,898,443
Cash dividends per share	$ 1.20	$ 1.20	$ 2.17
Basic and diluted earnings per share	$ 2.67	$ 3.07	$ 2.81