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Stock-Based Compensation (Stock-Based Compensation Expense) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 11,618	$ 9,957	$ 32,607	$ 27,674
Cost Of Sales [Member]
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Total stock-based compensation expense	1,334	1,044	3,864	2,852
Research And Development [Member]
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Total stock-based compensation expense	4,372	3,621	12,070	10,244
Selling, General And Administrative [Member]
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 5,912	$ 5,292	$ 16,673	$ 14,578

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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