Stock-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Stock-Based Compensation Expense Allocation [Line Items]
Stock-based Compensation Expense	$ 7,364	$ 6,136	$ 21,619	$ 18,342
Cost of Goods Sold [Member]
Stock-Based Compensation Expense Allocation [Line Items]
Stock-based Compensation Expense	2,549	1,906	6,477	4,710
Research and Development Expense [Member]
Stock-Based Compensation Expense Allocation [Line Items]
Stock-based Compensation Expense	2,226	2,179	6,914	6,240
Selling, General And Administrative [Member]
Stock-Based Compensation Expense Allocation [Line Items]
Stock-based Compensation Expense	$ 2,589	$ 2,051	$ 8,228	$ 7,392