Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

Quarterly Financial Data (Unaudited)

The supplemental quarterly financial data are as follows:

	Quarters Ended
	March 31, 2018		June 30, 2018	September 29, 2018	December 31, 2018
Net sales	$	2,412,202	2,577,014	2,545,800	2,448,618
Gross profit	704,692		766,555	1,825,367	646,390
Net earnings	208,766		196,586	227,013	229,339
Basic earnings per share	2.80		2.64	3.03	3.07
Diluted earnings per share	2.78		2.62	3.02	3.05

	Quarters Ended
	April 1, 2017		July 1, 2017	September 30, 2017	December 31, 2017
Net sales	$	2,220,645	2,453,038	2,448,510	2,369,097
Gross profit	680,353		779,136	783,301	753,624
Net earnings	200,554		260,681	270,025	240,378
Basic earnings per share	2.70		3.51	3.63	3.23
Diluted earnings per share	2.68		3.48	3.61	3.21