Consolidated Statements of Earnings (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements of Earnings [Abstract]
Net sales	$ 2,797,089	$ 2,386,112	$ 2,049,668
Cost of sales	1,281,525	1,110,986	1,006,530
Gross profit	1,515,564	1,275,126	1,043,138
Selling, general and administrative expenses	855,025	760,832	647,742
Income from operations	660,539	514,294	395,396
Interest expense	63,648	66,533	58,544
Loss on extinguishment of debt	0	0	403
Other income (expense)	8,096	633	3,319
Earnings before income taxes	604,987	448,394	339,768
Income taxes	177,740	125,814	100,287
Net earnings	$ 427,247	$ 322,580	$ 239,481
Earnings per share:
Basic	$ 4.45	$ 3.42	$ 2.64
Diluted	$ 4.34	$ 3.34	$ 2.58
Weighted average common shares outstanding:
Basic	95,959,000	94,242,000	90,685,000
Diluted	98,386,000	96,653,000	92,820,000