Share Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended						9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013 Stock Incentive Plan 2009 [Member]	Dec. 29, 2012 Stock Incentive Plan 2009 [Member]	Sep. 28, 2013 Employee Stock Purchase Plan [Member]	Dec. 29, 2012 Employee Stock Purchase Plan [Member]	Sep. 28, 2013 Employee Stock Option [Member]	Sep. 29, 2012 Employee Stock Option [Member]	Sep. 28, 2013 Restricted Stock Units (RSUs) [Member]	Sep. 29, 2012 Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares available for grant					12,400,000	6,200,000	16,000,000	8,000,000
Share-based compensation expense	$ 3,400,000	$ 4,700,000	$ 10,349,000	$ 14,051,000
Stock options granted									1,022,426	1,140,554
Weighted average exercise price									$ 51.77	$ 42.77
Restricted stock units granted											59,864	80,034
Weighted average fair value per share									$ 14.66	$ 13.13	$ 51.72	$ 43.55
Total unrecognized compensation expense									$ 18,000,000		$ 3,500,000
Remaining weighted average expense recognition period									1 year 4 months 24 days		1 year 9 months 12 days