CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Sales
Net product revenues	$ 189,819	$ 171,734	$ 353,715	$ 335,326
Net contract revenues	1,008	1,862	2,025	3,812
Net Revenues Total	190,827	173,596	355,740	339,138
Cost of product revenues (1)	18,237	16,330	32,568	31,437
Gross profit	172,590	157,266	323,172	307,701
Operating Expenses:
Selling, general and administrative (2)	90,393	77,091	175,023	149,375
Research And Development Expense	15,195	7,420	29,468	13,979
Depreciation and amortization	7,110	6,916	14,434	13,649
Operating income (loss)	59,892	65,839	104,247	130,698
Interest and investment income	(1,238)	(780)	(2,512)	(1,940)
Interest Expense	1,141	1,061	2,199	2,119
Other (income) expense, net	0	(2)	0	257
Income from continuing operations before income tax expense	59,989	65,560	104,560	130,262
Income tax expense	25,477	24,632	43,363	49,316
Income from continuing operations	34,512	40,928	61,197	80,946
Loss from discontinued operations, net of income tax benefit	5,729	4,428	13,054	9,078
Net income (loss)	$ 28,783	$ 36,500	$ 48,143	$ 71,868
Basic net income (loss) per share - continuing operations	$ 0.55	$ 0.68	$ 0.99	$ 1.35
Basic net income (loss) per share - discontinued operations	$ (0.09)	$ (0.08)	$ (0.22)	$ (0.16)
Basic net income (loss) per share	$ 0.46	$ 0.61	$ 0.78	$ 1.19
Diluted net income (loss) per share - continuing operations	$ 0.51	$ 0.62	$ 0.91	$ 1.24
Diluted net income (loss) per shares - discontinued operations	$ (0.09)	$ (0.08)	$ (0.22)	$ (0.16)
Diluted net income (loss) per share	$ 0.43	$ 0.56	$ 0.72	$ 1.10
Cash dividend declared per common share	$ 0.08	$ 0.06	$ 0.08	$ 0.12
Common shares used in calculating:
Basic net income per share	60,308	58,271	59,719	58,161
Weighted Average Number Of Diluted Shares Outstanding	67,140	64,395	66,347	64,294