Consolidated Statements Of Earnings (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Income Statement [Abstract]
Net sales	$ 3,133,577		$ 2,766,859		$ 2,269,471
Cost of sales	1,519,053		1,332,687		1,094,635
Gross profit	1,614,524		1,434,172		1,174,836
Operating and administrative expenses	941,236		859,369		745,112
(Gain) Loss on sale of property and equipment	(403)		194		35
Operating income	673,691		574,609		429,689
Interest income	464		472		951
Earnings before income taxes	674,155		575,081		430,640
Income tax expense	253,619		217,152		165,284
Net earnings	$ 420,536		$ 357,929		$ 265,356
Basic net earnings per share	$ 1.42	[1]	$ 1.21	[1]	$ 0.90
Diluted net earnings per share	$ 1.42		$ 1.21		$ 0.90
Basic weighted average shares outstanding	296,089,348		295,053,790		294,861,424
Diluted weighted average shares outstanding	297,150,950		295,868,726		294,861,424

[1] Note – Amounts may not foot due to rounding difference.