Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015
Consolidated Statements of Income [Abstract]
Net sales	$ 742,986	$ 711,879	$ 2,211,622	$ 2,142,685
Cost of sales, including warehousing and distribution expenses	538,122	517,732	1,597,709	1,554,504
Gross profit on sales	204,864	194,147	613,913	588,181
Operating, general and administrative expenses	188,901	174,566	542,624	523,170
Income from operations	15,963	19,581	71,289	65,011
Investment income (loss) and interest expense	666	(422)	1,985	695
Income before provision for income taxes	16,629	19,159	73,274	65,706
Provision for income taxes	6,001	6,371	27,253	22,952
Net income	$ 10,628	$ 12,788	$ 46,021	$ 42,754
Weighted-average shares outstanding, basic and diluted	26,898,443	26,898,443	26,898,443	26,898,443
Cash dividends per share	$ 0.30	$ 0.30	$ 0.90	$ 0.90
Basic and diluted earnings per share	$ 0.40	$ 0.48	$ 1.71	$ 1.59

Aggregate dividends declared during the period for each share of common stock outstanding.

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