CONDENSED STATEMENTS OF OPERATIONS (Unaudited) Parentheticals (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Income Statement Parentheticals [Line Items]
Amounts include share-based compensation expense	$ 4,438	$ 7,946	$ 20,445	$ 13,003
Cost of product revenues
Income Statement Parentheticals [Line Items]
Amounts exclude amortization of intangible assets related to acquired products	5,266	5,184	15,984	15,551
Selling, general and administrative
Income Statement Parentheticals [Line Items]
Amounts include share-based compensation expense	4,343	7,534	19,331	12,491
Research and Development
Income Statement Parentheticals [Line Items]
Amounts include share-based compensation expense	$ 95	$ 412	$ 1,114	$ 512