Quarterly Data (Unaudited) (Tables)

12 Months Ended

Jan. 02, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	1st		2nd		3rd		4th		Total Year
	(dollars in thousands, except per share data)
2015
Net sales	$	406,596	$	436,291	$	449,004	$	534,707	$	1,826,598
Gross profit	157,562		172,889		177,182		198,872		706,505
Income from operations	66,580		83,360		80,030		72,633		302,603
Net earnings	$	38,231	$	54,267	$	48,825	$	50,287	$	191,610
Basic earnings per share (1)	$	0.67	$	0.95	$	0.86	$	0.88	$	3.36
Diluted earnings per share (1)	$	0.67	$	0.95	$	0.86	$	0.88	$	3.36
2014
Net sales	$	372,478	$	424,776	$	404,289	$	434,995	$	1,636,538
Gross profit	142,976		166,174		162,380		169,055		640,585
Income from operations	55,933		75,739		86,465		82,295		300,432
Net earnings	$	33,445	$	48,405	$	59,713	$	51,749	$	193,312
Basic earnings per share (1)	$	0.59	$	0.85	$	1.05	$	0.91	$	3.41
Diluted earnings per share (1)	$	0.59	$	0.85	$	1.05	$	0.91	$	3.40

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