Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 28, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	1st		2nd		3rd		4th		Total Year
	(dollars in thousands, except per share data)
2019
Net sales	$	686,802	$	761,004	$	724,014	$	787,626	$	2,959,446
Gross profit	257,312		286,479		270,028		289,678		1,103,497
Income from operations	101,061		139,607		121,345		152,030		514,043
Net earnings	$	69,013	$	92,210	$	82,020	$	108,997	$	352,240
Basic earnings per share (1)	$	1.24	$	1.66	$	1.47	$	1.96	$	6.33
Diluted earnings per share (1)	$	1.24	$	1.66	$	1.47	$	1.96	$	6.33
2018
Net sales	$	584,800	$	668,128	$	713,331	$	756,672	$	2,722,931
Gross profit	211,633		250,759		261,160		280,588		1,004,140
Income from operations	86,992		111,310		107,677		139,987		445,966
Net earnings	$	65,420	$	83,988	$	72,905	$	94,839	$	317,152
Basic earnings per share (1)	$	1.18	$	1.51	$	1.31	$	1.71	$	5.71
Diluted earnings per share (1)	$	1.18	$	1.51	$	1.31	$	1.70	$	5.70

(1)

Sum of quarters may not equal the total for the year due to changes in the number of shares outstanding during the year.