CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010		Dec. 31, 2009
Income Statement [Abstract]
Revenue	$ 1,544,062	$ 1,388,437	[1]	$ 1,147,087
Cost of goods sold	715,458	624,796	[1]	488,558
Gross profit	828,604	763,641	[1]	658,529
Operating Expenses [Abstract]
Research and development	147,177	116,635	[1]	91,301
Selling, general and administrative	368,232	286,695	[1]	219,941
Total operating expenses	515,409	403,330	[1]	311,242
Earnings from operations	313,195	360,311	[1]	347,287
Interest expense	5,487	2,884	[1]	6,882
Interest income	(1,273)	(1,258)	[1]	(1,749)
Other (income) expense, net	(2,098)	(4,015)	[1]	1,761
Earnings from continuing operations before income taxes	311,079	362,700	[1]	340,393
Income tax provision	88,427	114,326	[1]	110,180
Earnings from continuing operations	222,652	248,374	[1]	230,213
Loss from discontinued operations, net of tax	(1,178)	(248)	[1]	0
Net earnings	$ 221,474	$ 248,126	[1]	$ 230,213
Basic earnings per share:
Continuing operations	$ 1.41	$ 1.59	[1]	$ 1.54
Discontinued operations	$ (0.01)	$ 0.00	[1]	$ 0.00
Basic earnings per share	$ 1.40	$ 1.59	[1]	$ 1.54
Diluted earnings per share:
Continuing operations	$ 1.38	$ 1.54	[1]	$ 1.45
Discontinued operations	$ (0.01)	$ 0.00	[1]	$ 0.00
Diluted earnings per share	$ 1.38	$ 1.54	[1]	$ 1.45

[1] Amounts have been adjusted for the reclassification of certain discontinued operations to continuing operations.