Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
Mar. 26, 2016	Mar. 28, 2015
Consolidated Statements of Income [Abstract]
Net sales	$ 738,204	$ 712,426
Cost of sales, including warehousing and distribution expenses	531,092	517,311
Gross profit on sales	207,112	195,115
Operating, general and administrative expenses	175,842	175,250
Income from operations	31,270	19,865
Investment income	637	532
Income before provision for income taxes	31,907	20,397
Provision for income taxes	11,778	7,074
Net income	$ 20,129	$ 13,323
Weighted-average shares outstanding, basic and diluted	26,898,443	26,898,443
Cash dividends per share	$ 0.30	$ 0.30
Basic and diluted earnings per share	$ 0.75	$ 0.50

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

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