Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of supplemental quarterly financial data

The supplemental quarterly financial data are as follows:

	Quarters Ended
	April 2, 2016		July 2, 2016	October 1, 2016	December 31, 2016
Net sales	$	2,172,046	2,310,336	2,294,139	2,182,566
Gross profit	639,679		755,588	726,559	690,999
Net earnings	171,548		255,188	269,878	233,748
Basic earnings per share	2.32		3.44	3.64	3.15
Diluted earnings per share	2.30		3.42	3.62	3.13

	Quarters Ended
	April 4, 2015		July 4, 2015	October 3, 2015	December 31, 2015
Net sales	$	1,881,177	2,041,733	2,150,656	1,997,997
Gross profit	511,943		615,129	661,404	622,210
Net earnings	22,346		186,492	214,905	191,559
Basic earnings per share	0.31		2.54	2.91	2.59
Diluted earnings per share	0.30		2.53	2.89	2.57