Stock-Based Compensation (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended					12 Months Ended
	Dec. 29, 2012	Dec. 31, 2009 2009 Stock Incentive Plan	Dec. 29, 2012 2009 Stock Incentive Plan Low end of range	Dec. 29, 2012 2009 Stock Incentive Plan High end of range	Dec. 29, 2012 2009 Stock Incentive Plan Stock options	Dec. 29, 2012 2009 Stock Incentive Plan Full value awards	Dec. 31, 2011 2009 Stock Incentive Plan Full value awards	Jan. 01, 2011 2009 Stock Incentive Plan Full value awards	Dec. 29, 2012 2009 Stock Incentive Plan Market Stock Units	Dec. 31, 2011 2009 Stock Incentive Plan Market Stock Units	Dec. 29, 2012 2000 Stock Incentive Plan Low end of range	Dec. 29, 2012 2000 Stock Incentive Plan High end of range	Dec. 29, 2012 2000 Stock Incentive Plan Stock options High end of range	Dec. 29, 2012 2009 Employee Stock Purchase Plan	Dec. 31, 2011 2009 Employee Stock Purchase Plan	Jan. 01, 2011 2009 Employee Stock Purchase Plan	Dec. 29, 2012 2009 Employee Stock Purchase Plan Stock options and stock appreciation rights	Dec. 29, 2012 2009 Employee Stock Purchase Plan Full value awards	Dec. 29, 2012 Employee Stock Purchase Plan	Jan. 01, 2011 Employee Stock Purchase Plan
Stock-based compensation costs
Term of plan		10 years
Number of shares deducted for each share granted under 2009 Stock Incentive Plan																	1	1.55
Award vesting period			3 years	4 years					3 years		3 years	8 years
Minimum exercise price as percentage of fair market value of shares on the date of grant					100.00%									85.00%					85.00%
Maximum term of offering														24 months					24 months
Term of award													10 years
Number of shares granted						800,000	800,000	800,000	110,000	55,000
Shares issued														181,000	169,000	75,000				79,000
Net reduction in selling, general and administrative expense	$ 1.9
Weighted-average fair value for purchase rights granted (in dollars per share)														$ 11.02
Fair value assumptions
Expected volatility (as a percent)														38.00%	27.00%	32.00%
Risk-free interest rate %														0.20%	0.20%	0.40%
Expected term														15 months	11 months	15 months