Consolidated Statements of Income (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 25, 2011	Jun. 26, 2010	Jun. 25, 2011	Jun. 26, 2010
Consolidated Statements of Income
Net sales	$ 676,660	$ 653,677	$ 1,336,114	$ 1,317,932
Cost of sales, including warehousing and distribution expenses	494,003	469,303	974,954	953,861
Gross profit on sales	182,657	184,374	361,160	364,071
Operating, general, and administrative expenses	150,967	151,872	301,218	304,889
Income from operations	31,690	32,502	59,942	59,182
Investment income	951	267	2,042	858
Income before provision for income taxes	32,641	32,769	61,984	60,040
Provision for income taxes	11,940	12,260	22,683	22,149
Net income	$ 20,701	$ 20,509	$ 39,301	$ 37,891
Weighted-average shares outstanding, basic	26,898,443	26,898,492	26,898,443	26,898,492
Weighted-average shares outstanding, diluted	26,898,443	26,898,606	26,898,443	26,899,106
Cash dividends per share	$ 0.29	$ 0.29	$ 0.58	$ 0.58
Basic and diluted earnings per share	$ 0.77	$ 0.76	$ 1.46	$ 1.41