Stock-Based Compensation (Details 2) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2012	Sep. 27, 2011	Oct. 02, 2012	Sep. 27, 2011	Jan. 03, 2012
Restricted Shares and Restricted Share Units
Outstanding at the end of the period (in shares)	1,200	700	1,200	700
Stock options
Stock-Based Compensation
Weighted average fair value at the grant date for options issued (in dollars per share)	$ 10.27	$ 11.88
Weighted average assumptions under Black-Scholes valuation model
Expected option term	6 years 1 month 6 days	6 years
Expected stock price volatility (as a percent)	37.30%	38.50%
Risk free interest rate (as a percent)	1.10%	1.40%
Dividend yield (as a percent)	1.40%	0.00%
Stock option activity, shares
Outstanding, at the beginning of the period (in shares)			8,827
Granted (in shares)			485
Exercised (in shares)			(1,210)
Forfeited or cancelled (in shares)			(165)
Outstanding at the end of the period (in shares)	7,937		7,937		8,827
Exercisable at the end of the period (in shares)	4,281		4,281
Weighted Average Exercise price
Outstanding at the beginning of the period (in dollars per share)			$ 23.51
Granted (in dollars per share)			$ 29.32
Exercised (in dollars per share)			$ 22.56
Forfeited or cancelled (in dollars per share)			$ 22.73
Outstanding at the end of the period (in dollars per share)	$ 24.03		$ 24.03		$ 23.51
Exercisable at the end of the period (in dollars per share)	$ 27.35		$ 27.35
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period			4 years 4 months 24 days		4 years 9 months 18 days
Outstanding at the end of the period			4 years 4 months 24 days		4 years 9 months 18 days
Exercisable at the end of the period			3 years 4 months 24 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period			$ 58,857,000
Outstanding at the end of the period	91,308,000		91,308,000		58,857,000
Exercisable at the end of the period	35,214,000		35,214,000
Total intrinsic value of options exercised	3,400,000	900,000	11,600,000	4,600,000
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock option	16,800,000		16,800,000
Expected weighted average period for recognition of compensation expense related to nonvested stock option			2 years 3 months 18 days
Restricted Shares and Restricted Share Units
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock option	21,400,000		21,400,000
Expected weighted average period for recognition of compensation expense related to nonvested stock option			3 years 8 months 12 days
Restricted Shares and Restricted Share Units
Outstanding at the beginning of the period (in shares)			826
Granted (in shares)			523
Vested (in shares)			(175)
Forfeited (in shares)			(13)
Outstanding at the end of the period (in shares)	1,161		1,161
Fair value of shares vested		$ 300,000	$ 2,400,000	$ 1,200,000
Weighted Average Fair Value
Outstanding at the beginning of the period (in dollars per share)			$ 20.40
Granted (in dollars per share)	$ 34.00	$ 26.98	$ 30.68
Vested (in dollars per share)			$ 13.98
Forfeited (in dollars per share)			$ 23.43
Outstanding at the end of the period (in dollars per share)	$ 25.97		$ 25.97