Stock-based Compensation Stock-based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before income taxes	$ 7,630	$ 7,865	$ 13,327	$ 13,400
Income tax benefit	(2,543)	(2,389)	(4,402)	(4,063)
Total stock-based compensation expense after income taxes	5,087	5,476	8,925	9,337
Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	578	917	1,231	1,621
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,206	1,298	2,287	2,474
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,846	$ 5,650	$ 9,809	$ 9,305