Stock-based Compensation Stock-based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	$ 7,348	$ 6,597	$ 20,673	$ 19,997
Income tax benefit	(2,295)	(2,005)	(6,696)	(6,067)
Total stock-based compensation expense after income taxes	5,053	4,592	13,977	13,930
Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	672	895	1,902	2,516
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,388	1,297	3,675	3,771
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,288	$ 4,405	$ 15,096	$ 13,710