Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Income Statement [Abstract]
Net sales	$ 1,135,234	$ 1,047,349	$ 2,239,302	$ 2,053,689
Cost of sales, including advertising, warehousing and distribution expenses	843,020	766,157	1,653,403	1,505,108
Gross profit on sales	292,214	281,192	585,899	548,581
Operating, general and administrative expenses	243,809	235,633	496,081	471,189
Income from operations	48,405	45,559	89,818	77,392
Investment income (loss) and interest expense	(1,030)	2,140	(1,910)	3,752
Other income (expense)	2,085	(1,831)	3,590	(2,606)
Income before provision for income taxes	49,460	45,868	91,498	78,538
Provision for income taxes	13,194	12,396	23,843	20,811
Net income	$ 36,266	$ 33,472	$ 67,655	$ 57,727
Weighted-average shares outstanding, basic	26,898,443	26,898,443	26,898,443	26,898,443
Weighted-average shares outstanding, diluted	26,898,443	26,898,443	26,898,443	26,898,443
Cash dividends per share	$ 0.32	$ 0.31	$ 0.64	$ 0.62
Basic earnings per share	1.35	1.24	2.52	2.15
Diluted earnings per share	$ 1.35	$ 1.24	$ 2.52	$ 2.15