Stock-Based Compensation (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Stock-based compensation costs
Share based compensation cost before tax	$ 30,800	$ 31,176	$ 36,115
Income tax benefit	2,633	4,911	3,957
Share based compensation cost after tax	28,167	26,265	32,158
Cost of revenues
Stock-based compensation costs
Share based compensation cost before tax	952	1,206	1,319
Research and development
Stock-based compensation costs
Share based compensation cost before tax	14,530	12,602	14,872
Selling, general and administrative
Stock-based compensation costs
Share based compensation cost before tax	$ 15,318	$ 17,368	$ 19,924