Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Data [Abstract]

Quarterly Financial Data

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
	(in thousands, except per share data)
2016
Net sales	$	902,423	$	931,558	$	945,144	$	1,010,800
Gross profit		559,519		567,520		578,493		626,878
Income from operations		244,991		253,078		267,390		289,104
Net earnings		151,416		158,069		167,079		182,081
Earnings from continuing operations per common share:
Basic		1.50		1.56		1.65		1.79
Diluted		1.48		1.54		1.63		1.78
2015
Net sales	$	865,281	$	889,541	$	883,933	$	943,640
Gross profit		518,161		533,911		533,483		579,091
Income from operations		246,896		251,974		250,371		278,677
Net earnings		155,773		171,280		160,417		208,597
Earnings from continuing operations per common share:
Basic		1.55		1.70		1.59		2.07
Diluted		1.54		1.69		1.58		2.05