Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Consolidated Statements of Income [Abstract]
Net sales	$ 869,076	$ 854,261	$ 2,616,282	$ 2,583,059
Cost of sales, including advertising, warehousing and distribution expenses	636,736	634,652	1,908,740	1,900,655
Gross profit on sales	232,340	219,609	707,542	682,404
Operating, general and administrative expenses	214,798	213,415	641,124	628,242
Income from operations	17,542	6,194	66,418	54,162
Investment income and interest expense	1,096	657	668	1,893
Income before provision for income taxes	18,638	6,851	67,086	56,055
Provision for income taxes	4,431	2,402	17,594	21,295
Net income	$ 14,207	$ 4,449	$ 49,492	$ 34,760
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	$ 0.53	$ 0.16	$ 1.84	$ 1.29

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

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