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
Net sales	$ 2,064,475	$ 1,954,426	$ 1,195,413
Cost of sales	610,329	566,942	396,584
Gross margin	1,454,146	1,387,484	798,829
Research and development expense	325,733	264,649	260,208
Selling, general, and administrative expense	279,217	254,495	234,074
Compensation (benefit) expense - deferred compensation plan	(1,964)	6,839	11,776
Loss (gain) on deferred compensation plan securities	1,964	(6,839)	(11,776)
Interest income and other	(3,526)	(3,330)	(6,083)
Interest expense	3,730	3,843	5,092
Income before income taxes	848,992	867,827	305,538
Income tax expense	78,281	84,943	54,476
Net Income	$ 770,711	$ 782,884	$ 251,062
Net income per share:
Basic	$ 2.39	$ 2.55	$ 0.85
Diluted	$ 2.35	$ 2.49	$ 0.84
Shares used in computing per share amounts:
Basic	321,892	307,302	294,493
Diluted	327,606	313,912	297,180
Cash dividends per common share	$ 0.28	$ 0.22	$ 0.2