CONSOLIDATED STATEMENTS OF INCOME (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 INCOME
NET SALES	$ 2,060,702	$ 1,703,230	$ 1,303,942
COST OF SALES	995,046	808,921	623,702
GROSS PROFIT	1,065,656	894,309	680,240
OPERATING EXPENSES	515,033	437,886	332,426
OPERATING INCOME	550,623	456,423	347,814
OTHER (EXPENSE) INCOME:
Interest and other (expense) income, net	(2,256)	1,619	2,246
Gain (loss) on investments and put option, net (Note 2)	787	(772)	(758)
Total other (expense) income	(1,469)	847	1,488
INCOME BEFORE PROVISION FOR INCOME TAXES	549,154	457,270	349,302
PROVISION FOR INCOME TAXES	209,134	171,051	137,273
NET INCOME	$ 340,020	$ 286,219	$ 212,029
NET INCOME PER COMMON SHARE:
Basic (in dollars per share)	$ 1.96	$ 1.62	$ 1.20
Diluted (in dollars per share)	$ 1.86	$ 1.53	$ 1.14
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK AND COMMON STOCK EQUIVALENTS:
Basic (in shares)	173,712	176,212	177,028
Diluted (in shares)	183,083	186,674	186,042