CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Revenue	$ 1,496,372	$ 1,405,358	$ 1,544,062
Cost of goods sold	759,362	670,174	714,743
Gross profit	737,010	735,184	829,319
Operating Expenses [Abstract]
Research and development	147,696	137,354	147,177
Selling, general and administrative	322,739	292,500	368,947
Restructuring expenses	25,832	2,000	0
Total operating expenses	496,267	431,854	516,124
Earnings from operations	240,743	303,330	313,195
Interest expense	14,091	11,659	5,487
Interest income	(1,058)	(1,582)	(1,273)
Other expense (income), net	(1,276)	1,341	(2,098)
Earnings from continuing operations before income taxes	228,986	291,912	311,079
Income tax provision	51,971	66,556	88,427
Earnings from continuing operations	177,015	225,356	222,652
Loss from discontinued operations, net of tax	0	(2,958)	(1,178)
Net earnings	$ 177,015	$ 222,398	$ 221,474
Basic earnings per share:
Continuing operations	$ 1.24	$ 1.49	$ 1.41
Discontinued operations	$ 0.00	$ (0.02)	$ (0.01)
Basic earnings per share	$ 1.24	$ 1.47	$ 1.40
Diluted earnings per share:
Continuing operations	$ 1.22	$ 1.47	$ 1.38
Discontinued operations	$ 0.00	$ (0.02)	$ (0.01)
Diluted earnings per share	$ 1.22	$ 1.45	$ 1.38