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
Income Statement [Abstract]
Revenue	$ 1,405,358	$ 1,544,062	$ 1,388,437
Cost of goods sold	673,968	715,458	624,796
Gross profit	731,390	828,604	763,641
Operating Expenses [Abstract]
Research and development	137,762	147,177	116,635
Selling, general and administrative	290,298	368,232	286,695
Total operating expenses	428,060	515,409	403,330
Earnings from operations	303,330	313,195	360,311
Interest expense	11,659	5,487	2,884
Interest income	(1,582)	(1,273)	(1,258)
Other expense (income), net	1,341	(2,098)	(4,015)
Earnings from continuing operations before income taxes	291,912	311,079	362,700
Income tax provision	66,556	88,427	114,326
Earnings from continuing operations	225,356	222,652	248,374
Loss from discontinued operations, net of tax	(2,958)	(1,178)	(248)
Net earnings	$ 222,398	$ 221,474	$ 248,126
Basic earnings per share:
Continuing operations	$ 1.49	$ 1.41	$ 1.59
Discontinued operations	$ (0.02)	$ (0.01)	$ 0.00
Basic earnings per share	$ 1.47	$ 1.40	$ 1.59
Diluted earnings per share:
Continuing operations	$ 1.47	$ 1.38	$ 1.54
Discontinued operations	$ (0.02)	$ (0.01)	$ 0.00
Diluted earnings per share	$ 1.45	$ 1.38	$ 1.54