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Consolidated Statements of Earnings (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 806,326	$ 768,875
Cost of sales	384,446	374,698
Gross profit	421,880	394,177
Operating and administrative expenses	247,334	232,970
(Gain) loss on sale of property and equipment	(213)	174
Operating income	174,759	161,033
Interest income	447	96
Interest expense	(34)	0
Earnings before income taxes	175,172	161,129
Income tax expense	66,124	60,935
Net earnings	$ 109,048	$ 100,194
Basic net earnings per share	$ 0.37	$ 0.34
Diluted net earnings per share	$ 0.37	$ 0.34
Basic weighted average shares outstanding	296,643,014	295,538,402
Diluted weighted average shares outstanding	297,651,960	296,927,223

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