Consolidated Statements of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements of Earnings [Abstract]
Net sales	$ 2,993,489	$ 2,797,089	$ 2,386,112
Cost of sales	1,321,772	1,281,525	1,110,986
Gross profit	1,671,717	1,515,564	1,275,126
Selling, general and administrative expenses	914,130	855,025	760,832
Income from operations	757,587	660,539	514,294
Interest expense	67,525	63,648	66,533
Loss on extinguishment of debt	1,043	0	0
Other income (expense)	(2,338)	8,096	633
Earnings before income taxes	686,681	604,987	448,394
Income taxes	203,321	177,740	125,814
Net earnings	$ 483,360	$ 427,247	$ 322,580
Earnings per share:
Basic	$ 4.95	$ 4.45	$ 3.42
Diluted	$ 4.86	$ 4.34	$ 3.34
Weighted average common shares outstanding:
Basic	97,702	95,959	94,242
Diluted	99,558	98,386	96,653